CN102333360B - Network selection method and device for user equipment - Google Patents
Network selection method and device for user equipment Download PDFInfo
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- CN102333360B CN102333360B CN201110327287.5A CN201110327287A CN102333360B CN 102333360 B CN102333360 B CN 102333360B CN 201110327287 A CN201110327287 A CN 201110327287A CN 102333360 B CN102333360 B CN 102333360B
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Abstract
The invention discloses a network selection method for user equipment. The method comprises that: the user equipment establishes connection with a network side, receives network selection information formulated by the network side and performs network selection according to the network selection information, or receives the network selection information and a forcible network selection indication, and selects a network specified by the forcible network selection indication for accessing according to the network selection information, wherein the network selection information is information about all or a part of networks available for the user equipment at a current position. The invention also discloses the user equipment and a network selection function device. By the network selection method provided by the invention, the network can control the access network selection range of the UE.
Description
Technical field
The present invention relates to moving communicating field, particularly relate to method and the device of selecting network by user equipment.
Background technology
Along with the growth to radio communication service demand, increasing wireless communication technology or is stepped into the practical stage, for example, widely used GSM/GPRS (Global System for Mobile communications/General Packet Radio System) system, UMTS (Universal Mobile Telecommunications System) system, WLAN (Wireless Local Area Network) system, stepping into WiMAX (the Worldwide Interoperability for Microwave Access) system of practical stage etc.These wireless access technologys have different separately ability characteristics, and for example, gsm system can provide large-scale mobility and good speech service quality, but data service rate is very low; UMTS system can provide large-scale mobility and intermediate data rate, but data service capacity is little; Wlan system can provide high speed wireless data access, but mobility can not be provided substantially, and coverage is very little simultaneously; The data service rate of WiMAX system and capacity are all higher, but are merely able to provide the wireless coverage in medium region, and certain mobility is provided.Can find out, independent wireless communication system is difficult to meet user to the many-sided requirement of radio communication service simultaneously, and mobility is high, and coverage is large, and speech service quality is good, and data service ability is strong.Therefore, slowly forming the trend merging between cordless communication network, the cordless communication network based on different radio access technologies coexists in certain area, common service-user, according to user's business demand, corresponding access capability is provided, select suitable access network for user's service.
In multiple wireless network the environment deposited, the essential condition that user can obtain business from suitable network is, subscriber equipment (User Equipment, UE) can know which accessible wireless network its current position has, and then again according to business demand, select different access networks.
Realizing in process of the present invention, inventor finds that in prior art, at least there are the following problems: UE timing or the not timing of prior art scan the network that may exist, determine according to scanning result and the autonomous selection strategy of user the network accessing, ignore the control of network to the accessible network of UE, and select access network for network control UE in prior art, also there is no effective solution.
Summary of the invention
The embodiment of the present invention provides method and the device of selecting network by user equipment, so that network control UE selects the scope of access network.
Embodiments of the invention provide a kind of method of selecting network by user equipment, and wherein subscriber equipment and network side connect, and comprising:
Described subscriber equipment receives the network selective information that network side is formulated, and carries out network selection according to described network selective information, or,
Described subscriber equipment receives network selective information and the pressure network selection instruction that network side is formulated, and selects described pressure network to select the network of instruction appointment to access according to described network selective information;
Described network selective information is the information of described subscriber equipment all or part of available network in current location.
Embodiments of the invention also provide a kind of user's set, comprise with lower unit:
Network connection unit, for connecting with network side;
Information receiving unit, the network selective information that provides entity to formulate for receiving the network information, described network selective information is the information of described user's set all or part of available network in current location;
Network selected cell, for selecting network according to described network selective information.
Embodiments of the invention also provide a kind of network selection functional device, comprise with lower unit:
Information collection unit, formulates the required information of network selective information for being collected as subscriber equipment;
Information is formulated unit, is that described subscriber equipment is formulated network selective information for the information providing according to described information collection unit, and described network selective information is the information of described subscriber equipment all or part of available network in current location;
Information issues unit, for described network selective information is offered to described subscriber equipment.
The network selective information that in embodiments of the invention, UE formulates according to network selection functional entity carries out network selection, provides network control UE to select the solution of access network.
Brief description of the drawings
Fig. 1 is the UE discovering network selection functional entity process schematic diagram of the embodiment of the present invention one;
Fig. 2 is the UE discovering network selection functional entity process schematic diagram of the embodiment of the present invention two;
Fig. 3 is the UE discovering network selection functional entity process schematic diagram of the embodiment of the present invention three;
Fig. 4 is the UE discovering network selection functional entity process schematic diagram of the embodiment of the present invention four;
Fig. 5 is the UE discovering network selection functional entity process schematic diagram of the embodiment of the present invention five;
Fig. 6 is the UE discovering network selection functional entity process schematic diagram of the embodiment of the present invention six;
Fig. 7 is that the network selection functional entity of the embodiment of the present invention seven is collected the process schematic diagram of information;
Fig. 8 is that the network selection functional entity of the embodiment of the present invention eight is collected the process schematic diagram of information;
Fig. 9 is the process schematic diagram that the UE of the embodiment of the present invention nine receives network selective information;
Figure 10 is the process schematic diagram that the UE of the embodiment of the present invention ten receives network selective information;
Figure 11 is the process schematic diagram that the UE of the embodiment of the present invention 11 receives network selective information;
Figure 12 is the process schematic diagram that the UE of the embodiment of the present invention 12 receives network selective information.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
In the embodiment of the present invention, UE selects the method for network to comprise the steps:
Steps A: UE and network side connect;
Step B:UE receives the network selective information that network side provides;
Wherein, the network side entity (referred to as network selection functional entity) that network selective information is provided can be in core net, to have the entity of selecting network function, this entity can be entity independent in network, also can be in other entities such as Mobility Management Entity, SGSN, IP gateway;
The network selective information that network selection functional entity provides can be all available Access Network information in UE current location, also may be the information of one or several Access Network in all available Access Networks, for example available Access Network information in the scope of UE tenability.Network selective information is that network selection functional entity is that this UE formulates according to the UE information of obtaining and/or Access Network information.Wherein, UE information can comprise tenability, UE current location, UE mark, the user signing contract information of UE to access technology, and QoS (Quality of Service, quality of service) information etc., Access Network information can comprise the type of other networks that access network type, Access Network mark, Access Network connect and mark, present load situation, QoS information, physical layer access information, and coverage etc.In addition when, network selection functional entity is UE formulation network selective information, can also consider the factor such as local policy, carrier policy.
Step C:UE carries out network selection according to network selective information.
Further, UE can also carry out network selection in conjunction with the network selection strategy of network selective information and self storage.Wherein, the network selection strategy of UE storage can be one of following or combination in any: (1) network priority strategy, for example, the list that Access Network is according to priority arranged, the list that other networks that Access Network connects are according to priority arranged, the list that mobile Operation Network is according to priority arranged, the list that operator's mark is according to priority arranged etc.; (2) strategy that whether about network enabled side forces network to be selected; (3) the required access technology of specific transactions is supported situation, and for example, regulation real-time video traffic must be passed through WiMAX network insertion, and voice service must be passed through GSM, WCDMA or LTE network insertion etc.; (4) about the strategy of quality of service, for example, the standard value that QoS must reach etc.
UE can select to continue to reside in network, also can select other networks of determining according to network selective information to access, and can also manually select network according to network selective information by user.
Further, after UE discovering network selection functional entity, receive according to the address information of this entity obtaining the network selective information that network side provides.If network selection functional entity is independent entity, what UE got is the IP address of network selection functional entity; If network selection functional entity is in other entities such as Mobility Management Entity, SGSN, IP gateway, what UE got is the address information of the residing entity of network selection functional entity.It should be noted that, if there is pre-configured annexation in the residing entity of network selection functional entity and access network entity, access network entity can forward according to pre-configured annexation the message of UE and the residing inter-entity of network selection functional entity, now, UE is without obtaining the residing entity address message of network selection functional entity.The embodiment of the present invention is only for convenience of description, and the IP address that obtains network selection functional entity taking UE, as example, illustrates the process of UE discovering network selection functional entity.
As shown in Figure 1, be the UE discovering network selection functional entity process schematic diagram of the embodiment of the present invention one.As shown in step 1.1, it is rear that UE is connected to Access Network 1, and the detailed process of discovering network selection functional entity comprises the steps:
Step 1.2: the address information of static configuration network selection functional entity on UE.This address information can be the IP address of network selection functional entity, can be also the title of network selection functional entity.
If this address information is the title of network selection functional entity, perform step 1.3.
Step 1.3:UE, by DNS (Domain Name Server, name server) inquiry, obtains the IP address of network selection functional entity.
In the present embodiment, by the address information static configuration of network selection functional entity, on UE, therefore, UE can as required, read the address information of network selection functional entity, and not affect existing signaling process at any time.
As shown in Figure 2, be the UE discovering network selection functional entity process schematic diagram of the embodiment of the present invention two.As shown in step 2.1, UE is by after Access Network 1 access communications network, and the detailed process of discovering network selection functional entity comprises the steps:
Step 2.2: the access device (for example base station) in Access Network 1 for example, sends to UE by bottom message (layer two message) by the address information of network selection functional entity, this message can adopt broadcast mode that the address information of network selection functional entity is broadcast to all UE, also can the address information of network selection functional entity be sent to UE by the mode of clean culture.Address above mentioned information can be the IP address of network selection functional entity, can be also the title of network selection functional entity.If this address information is the title of network selection functional entity, perform step 2.3.
Step 2.3:UE inquires about by DNS, obtains the IP address of network selection functional entity.
In the present embodiment, the address information of network selection functional entity can be configured and revise at network side, and UE can obtain the address of network selection functional entity in the process connecting with network side, without extra Signalling exchange.
In following examples, network selection functional entity address message can be IP address or the title of network selection functional entity.If network selection functional entity address message is the title of network selection functional entity, UE can inquire about by DNS, obtains the IP address of network selection functional entity, repeats no more.
As shown in Figure 3, be the UE discovering network selection functional entity process schematic diagram of the embodiment of the present invention three.As shown in step 3.1, UE is connected to after 3GPP Access Network, and the detailed process of discovering network selection functional entity comprises the steps:
Step 3.2:UE initiates to adhere to or tracking area update process to Mobility Management Entity by 3GPP Access Network.
The function of Mobility Management Entity comprises: management and the information (such as user ID, mobility status, security parameter etc.) of storage user in network are user assignment temporary mark, user are carried out to the functions such as Certificate Authority inspection.
Step 3.3:UE completes attaching process or tracking area update, comprises Certificate Authority, position registration, carrying foundation etc.
Step 3.4: Mobility Management Entity by 3GPP Access Network to UE send adhere to accept or tracking area update accept message, in message, carry network selection functional entity address message.
Step 3.5:UE replys and has adhered to or tracking area update completes message to Mobility Management Entity.
Further, in step 3.2, whether UE can carry an indication parameter adhering in request or tracking area update request message, be used to indicate UE and ask Mobility Management Entity to send network selection functional entity address message., in step 3.4, Mobility Management Entity can be according to this indication parameter, determines whether send network selection functional entity address message to UE.
The present embodiment is applicable to UE carries out network insertion situation by 3GPP Access Network, UE is completing the address information that can obtain network selection functional entity in the process that access is adhered to or position is upgraded, without extra Signalling exchange.The present embodiment utilizes existing non-access layer information that network selection functional entity address message is sent to UE, belongs to non-access level solution, can not impact existing Access Network.
As shown in Figure 4, be the UE discovering network selection functional entity process schematic diagram of the embodiment of the present invention four.As shown in step 4.1, UE is connected to after 3GPP Access Network, and the detailed process of discovering network selection functional entity comprises the steps:
Step 4.2-4.5: similar to the step 3.2-3.5 in embodiment tri-, difference is, what Mobility Management Entity sent to UE adhere to accepts or tracking area update accepts not carry in message network selection functional entity address message.
Step 4.6:UE sends network selection functional physical address request message to Mobility Management Entity.
Step 4.7: Mobility Management Entity sends network selection functional physical address response message, the address information of carrying network selection functional entity in this message to UE.
If this address information is the title of network selection functional entity, UE inquires about the IP address that obtains network selection functional entity by DNS.
The present embodiment is applicable to UE carries out network insertion situation by 3GPP Access Network, UE asks network selection functional entity address message by independent signaling, do not affect other signalings, thereby make process and other processes of UE request network selection functional entity address message independent.
As shown in Figure 5, be the UE discovering network selection functional entity process schematic diagram of the embodiment of the present invention five.As shown in step 5.1, UE is connected to after the Access Network (as WLAN Access Network) of untrusted, and the detailed process of discovering network selection functional entity comprises the steps:
Step 5.2:UE and ePDG (evolved Packet Data Gateway, the packet data gateway of evolution) initiate cipher key change and Security Association is set up.
Step 5.3: carry out and be carried on IKEv2 (Internet Key Exchange version 2, Internet cipher key change version two) on EAP (Extensible Authentication Protocol, Extensible Authentication Protocol) verification process, carries out Certificate Authority to UE.
Step 5.4:UE sends the message IKE_AUTH Request that carries authentication information to ePDG.
Step 5.5:ePDG replys the IKE_AUTH Response that carries authentication information and configuration information to UE, carry network selection functional entity address message in this message simultaneously.
Whether further, in step 5.4, UE can carry an indication parameter in IKE_AUTH Request message, be used to indicate UE and ask ePDG to send network selection functional entity address message.In step 5.5, ePDG is according to adhering to the indication parameter carrying in IKE_AUTH Request message, determines whether to send to UE the address information of network selection functional entity.
If determine that the network selection functional entity address message sending to UE is the title of network selection functional entity, UE inquires about the IP address that obtains network selection functional entity by DNS.
The present embodiment is applicable to UE carries out network insertion situation by the Access Network of untrusted, ePDG informs UE by the IKE_AUTH message of setting up behind tunnel by network selection functional entity address message, belong to non-access level solution, can not impact existing Access Network.
As shown in Figure 6, be the UE discovering network selection functional entity process schematic diagram of the embodiment of the present invention six.As shown in step 6.1, UE is connected to after Access Network 1, and the detailed process of discovering network selection functional entity comprises the steps:
Step 6.2: Access Network 1 sends EAP Request/Identity message to UE and initiates EAP certification, increases a null mark at the end of the parameter of this message, increase afterwards one of parameter that network selection functional entity address message carries as this message again.
Step 6.3:UE preserves network selection functional entity address message, and replys EAP Response/Identity message, and Access Network 1 passes to aaa server by this message again.
The certification entity of step 6.4:UE and network side, and AAA/HSS (Authentication Authorization Accounting server/Home Subscription Server, authentication and authorization charging server/home subscriber server) completes follow-up EAP verification process.
The present embodiment is applicable to UE by the situation that adopts the Access Network of EAP authentication mode to carry out network insertion, by expansion EAP message, in EAP request/identity message, bring UE by network selection functional entity address message by AGW, belong to non-access level solution.
The method that the embodiment of the present invention one to six provides multiple UE to find and select network selection functional entity, makes the UE can be initiatively and network selection functional entity communication, further, makes the UE network selective information that obtains in time, initiatively become possibility.
As shown in Figure 7, collect the process schematic diagram of information for the network selection functional entity of the embodiment of the present invention seven.Detailed process comprises the steps:
Step 7.1: network selection functional entity sends UE information request message to UE, can comprise indication information in this message, is used to indicate UE and reports which information.
Step 7.2:UE sends UE information reporting to network selection functional entity, and this message can comprise the contents such as tenability to access technology of UE mark, UE, UE current location information, QoS information, and the content of this message also can be set by UE.Further, if the message in step 7.1 has been carried indication information, UE reports corresponding information according to instruction.
Step 7.3: network selection functional entity stores UE information, and reply UE validation of information message to UE.Further, network selection functional entity can also be this UE formulation network selective information according to UE information, and is carried in this reply message.
Step 7.4: network selection functional entity for example, sends UE information request message to storage of subscriber data equipment (HSS), carries UE mark in this message, can also comprise indication information, is used to indicate storage of subscriber data equipment and feeds back which information.
Step 7.5: storage of subscriber data equipment is replied UE info response message to network selection functional entity, and this message can comprise the information such as UE subscription data.Further, if the message in step 7.4 has been carried indication information, storage of subscriber data equipment is answered corresponding information back and forth according to the content of this indication information.
Above-mentioned steps can be carried out by following compound mode: (a) only perform step 7.1 and 7.2; (b) only perform step 7.2 and 7.3; (c) order performs step 7.1,7.2,7.3; (d) order performs step 7.4,7.5.System can be according to the one in the scheme of actual conditions choice for use (a)-(d), or the one in (a)-(c) scheme and (d) scheme are used simultaneously.
The various ways that the present embodiment can provide network selection functional entity to obtain UE information, comprises to UE request, UE active reporting, asks from other network equipments, or the combination of various ways.
As shown in Figure 8, collect the process schematic diagram of information for the network selection functional entity of the embodiment of the present invention eight.Detailed process comprises the steps:
Step 8.1: network selection functional entity sends Access Network information request message to Access Network, can also comprise indication information in this message, is used to indicate recipient and reports which information.
Step 8.2: Access Network sends Access Network information reporting to network selection functional entity, this message can comprise type and mark, Access Network present load situation, QoS information, physical layer access information and the coverage etc. of other networks of access network type, Access Network mark, Access Network connection.Further, if the message in step 8.1 has been carried indication information, Access Network reports corresponding information according to instruction.
Step 8.3: network selection functional entity stores Access Network information, and reply Access Network validation of information message to Access Network.Further, this message can be carried network selective information, for example, cover other Access Network information of same scope.
Step 8.4: network selection functional entity, to the message of network operation and management system requested Access Network information, can carry Access Network mark in this message, can also comprise indication information in this message, is used to indicate recipient and reports which information.
Step 8.5: network operation and management system are replied Access Network information, such as Access Network mark, Access Network present load situation, QoS information, physical layer access information etc. to network selection functional entity.Further, if the message in step 8.4 has been carried indication information, network operation and management system report corresponding information according to instruction.
Above-mentioned steps can be carried out by following compound mode: (a) only perform step 8.1 and 8.2; (b) only perform step 8.2 and 8.3; (c) order performs step 8.1,8.2,8.3; (d) order performs step 8.4,8.5.System can be according to the one in the scheme of actual conditions choice for use (a)-(d), or the one in (a)-(c) scheme and (d) scheme are used simultaneously.
The various ways that the present embodiment provides network selection functional entity to obtain Access Network information, comprises to Access Network request, Access Network active reporting, to network operation and management system requested, or the combination of various ways.It should be noted that, network selection functional entity can also, after the triggering of message that is subject to other entities, be carried out the process of obtaining Access Network information, for example, when network selection functional entity receives the message of UE acquisition request network selective information, carry out the process of obtaining Access Network information.
The embodiment of the present invention seven to eight provides network selection functional entity to collect the method for UE information and Access Network information, make network selection functional entity can obtain in time the multidate information of UE and Access Network, further, make network selection functional entity become possibility for UE formulates effective network selective information timely.
As shown in Figure 9, receive the process schematic diagram of network selective information for the UE of the embodiment of the present invention nine.In the present embodiment, UE can be carrying out in initial access process, or complete after initial access, or in executing location renewal process, or after the renewal process of completing place, obtain network selective information to network selection functional entity requests.Detailed process comprises the steps:
Step 9.1:UE sends request the message of obtaining network selective information to network selection functional entity.In this message, can carry UE information, tenability to access technology of such as UE mark, UE, UE current location information, QoS information etc.
Step 9.2: network selection functional entity is this UE formulation network selective information according to the strategy on UE information, Access Network information, network selection functional entity etc.
Step 9.3: network selection functional entity is replied network selective information response message to UE, carries the network selective information of formulating into UE in this message.
As shown in figure 10, receive the process schematic diagram of network selective information for the UE of the embodiment of the present invention ten.The difference of the present embodiment and embodiment nine is, UE is being subject to after specific events trigger, to network selection functional entity requests network selective information.Above-mentioned particular event includes but not limited to that following situation: UE detects that current network signal is attenuated to certain threshold value, or user is while manually selecting Access Network, or the operation of certain application-specific on described subscriber equipment, or specific timer expires etc.Above-mentioned application-specific includes but not limited to following situation: QoS that this application program is had relatively high expectations ensures, business corresponding to this application program can only be provided by WiMAX or wlan network etc.The UE of the present embodiment is identical with embodiment nine to the detailed process of network selection functional entity requests network selective information, repeats no more.
In the present embodiment, obtained the process of network selective information by specific events trigger UE, thereby it is preferred to complete in time Access Network, improves communication quality.
As shown in figure 11, obtain the process schematic diagram of network selective information to network selection functional entity requests for the UE of the embodiment of the present invention 11.Detailed process comprises the steps:
Step 11.1:UE sends request the message of registration to network selection functional entity, in this message, can carry UE information, tenability to access technology of such as UE mark, UE, UE current location information, QoS information etc.
Step 11.2: network selection functional entity is preserved UE log-on message, and sends registration reply message to UE.
Step 11.3: network selection functional entity is this UE formulation network selective information.
Step 11.4: network selection functional entity sends network to UE and selects Indication message.If the content of this message comprises network selective information, UE receives this information, and the process of obtaining network selective information finishes.Further, for strengthening the control ability of network side to network selection procedures, can select particular network by network controls UE, be in the network selective information that issues to UE of network selection functional entity, can only limit to a specific Access Network and access information thereof, this message can also be carried one simultaneously forces network to select indication parameter, and instruction UE moves to specific Access Network, if the network of UE network enabled control is selected, to select particular network to access according to network instruction.
This step can periodically be carried out by network selection functional entity, also can be carried out by specific events trigger network selection functional entity, above-mentioned particular event can be the instruction of network operation and management system, or between Access Network, need to coordinate the event of load, or carrier policy changes, or the instruction of other network entities.
Optionally, if the network that network selection functional entity sends to UE selects Indication message not comprise network selective information, but require UE acquisition request network selective information, perform step 11.5 and step 11.6.
Step 11.5:UE sends network selective information request message to network selection functional entity.This message can be carried UE information, tenability to access technology of such as UE mark, UE, UE current location, qos requirement etc.
Step 11.6: network selection functional entity is formulated and sent network selective information to UE, and UE completes the process of obtaining network selective information.
Further, for strengthening the control ability of network side to network selection procedures, can select particular network by network controls UE, be that the network selective information that network selection functional entity issues to UE can only limit to a specific Access Network and access information thereof, this message can also be carried one simultaneously forces network to select indication parameter, and instruction UE moves to specific Access Network.
In the present embodiment, network selection functional entity is initiatively handed down to UE by network selective information.The method of being selected particular network by network controls UE is provided simultaneously, has strengthened the control ability of network to network selection procedures.
Application the present embodiment gets after network selective information, and UE can access Access Network preferred or that network is specified, as shown in step 11.7.UE can also determine whether continue to receive network selective information.When UE is when receiving network selective information again, or UE is while exitting network, UE can send de-registration request message to network selection functional entity, and network selection functional entity is replied and nullified response message to UE, and no longer send network selective information to UE, as shown in step 11.8-11.9.Also can send de-registration request message to network selection functional entity by storage of subscriber data equipment, in this message, carry UE mark, network selection functional entity is nullified response message to storage of subscriber data device replied, and no longer sends network selective information to UE, as shown in step 11.10-11.11.
As shown in figure 12, receive the process schematic diagram of network selective information for the UE of the embodiment of the present invention 12.Detailed process comprises the steps:
Step 12.1: network selection functional entity is that UE formulates network selective information.
Step 12.2: Access Network 1 sends network information request message to network selection functional entity.Be, the in the situation that of initiatively issuing network selective information to UE, not carry out this step at network selection functional entity setting up.
Step 12.3: network selection functional entity sends network information report to Access Network 1, comprising the mark of all Access Networks in same coverage, present load situation, QoS information, physical layer access information etc.
In the time that UE is connected to Access Network 1, carry out following steps:
Step 12.4: network selective information is sent to UE by Access Network 1.
Concrete, Access Network 1 can send to UE by network selective information by following two kinds of modes:
Mode 1: Access Network is encapsulated in network selective information in layer three above protocol message, for example MIP (Mobile IP, Mobile IP) message, EAP (Extensible Authentication Protocol, Extensible Authentication Protocol) message, RADIUS (Remote Authentication Dial In User Service, long-distance user dials in authentication service) agreement, DIAMETER (diameter protocol, the upgraded version of radius protocol) message, IKE (Internet Key Exchange, Internet cipher key change) message etc., send to UE.
Mode 2: Access Network is encapsulated in network selective information in access layer information, to broadcast or the mode of clean culture sends to UE.
Optionally, UE replys network information acknowledge message to Access Network, as shown in step 12.5.
The present embodiment provide a kind of by Access Network the mode to UE transmission network information, network selective information is offered Access Network by network selection functional entity, Access Network sends to UE by network selective information again.The present embodiment is applicable to UE can not be directly and the situation of network selection functional entity communication.
It is the method for UE formulation network selective information, the method that UE obtains network selective information, the method that UE utilizes network selective information that the embodiment of the present invention nine to 12 provides network selection functional entity, makes UE can utilize in time network selective information to select suitable network to access.
It will be appreciated by those skilled in the art that; the embodiment that UE discovering network selection functional entity as above, network selection functional entity are collected information and UE reception network selective information can carry out combination in any and be bonded in the concrete technical scheme of UE selection network, and does not exceed protection scope of the present invention.
It should be noted that the PDN Gateway in the embodiment of the present invention, PDN, AAA, HSS, ePDG etc. are only for convenience of description and the title adopting.These titles can not limit the applicable scope of the embodiment of the present invention, in some system, perhaps there is no the title of the entities such as PDN Gateway, PDN, AAA, HSS, ePDG, but, can not think thus that the technical scheme in the embodiment of the present invention can not be applicable to these systems.
The embodiment of the present invention 13 is a kind of user's set.This device comprises as lower unit:
Network connection unit 131, for connecting with network side;
Information receiving unit 132, the network selective information that provides entity to formulate for receiving the network information, this network selective information is the information of user's set all or part of available network in current location, this information receiving unit further comprises: information inquiry subelement 1321, for initiating network selective information inquiry according to the address information of network selection functional entity to network selection functional entity; Information provides subelement 1322, for network selective information being offered to network selected cell;
Network selected cell 133, for selecting network according to network selective information, this unit further comprises policy store subelement, determines whether to continue to reside in the required network selection strategy of current network for storing UE.Wherein, network selection strategy can be one of following or combination in any: (1) network priority strategy, for example, the list that Access Network is according to priority arranged, the list that other networks that Access Network connects are according to priority arranged, the list that mobile Operation Network is according to priority arranged, the list that operator's mark is according to priority arranged etc.; (2) strategy that whether about network enabled side forces network to be selected; (3) the required access technology of specific transactions is supported situation, and for example, regulation real-time video traffic must be passed through WiMAX network insertion, and voice service must be passed through GSM, WCDMA or LTE network insertion etc.; (4) about the strategy of quality of service, for example, the standard value that QoS must reach etc.
This device can also comprise address acquisition unit 134, be connected with information receiving unit 132, for obtaining the address information of network selection functional entity, this unit further comprises: address lookup subelement 1341, for the address information to Mobility Management Entity or ePDG requester network selection functional entity; Address configuration subelement 1342, for the address information of configuration network selection functional entity;
This device can also comprise that UE information provides unit 135, and for UE information is offered to network side, as network selection functional entity, this UE information can comprise tenability, UE current location, the UE mark of UE to access technology, and QoS information etc.
The embodiment of the present invention 14 is a kind of network selection functional device.This device comprises as lower unit:
Information collection unit 141, formulates the required information of network selective information for being collected as UE; This unit further comprises: UE information subelement 1401, be used for receiving UE information, as tenability, UE current location, UE mark and the QoS information etc. of UE to access technology, can also be used for to UE or storage of subscriber data equipment sending UE information inquiring request; Access Network information subelement 1402, be used for receiving Access Network information, as type and mark, present load situation, QoS information, physical layer access information and the coverage etc. of other networks of access network type, Access Network mark, Access Network connection, can also be used for access device or network operation and management system transmission Access Network information inquiring request to Access Network;
Information is formulated unit 142, is that UE formulates network selective information for the information providing according to information collection unit 141, and this network selective information is the information of UE all or part of available network in current location;
Information issues unit 143, offers UE for information being formulated to the network selective information of formulating unit 142, for example, directly send to UE, or send to UE by access network equipment.
This device can also comprise information memory cell 144, formulates the required information of network selective information for being stored as UE.
Below be only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. a subscriber equipment, is characterized in that, comprising:
Be used for the unit connecting with network side;
For receiving the network selective information of network side formulation and forcing network to select the unit of instruction; And,
The unit accessing for the network of selecting described pressure network to select instruction to specify according to described network selective information;
Wherein, described network selective information is the information of described subscriber equipment all or part of available network in current location;
Described for the unit that receives the network selective information that network side provides specifically for:
The address information of the network selection functional entity configuring according to self receives described network selective information; Or,
The address information of the network selection functional entity providing according to network side receives described network selective information;
Described subscriber equipment also comprises:
Be used for the unit of the address information of obtaining described network selection functional entity.
2. subscriber equipment according to claim 1, is characterized in that, described for the unit that receives the network selective information that network side provides also for:
Receive the address information of the described network selection functional entity that described network side sends with broadcast or the mode of clean culture by access layer information; Or,
Receive described network side offers the described network selection functional entity of described subscriber equipment address information by layer three message or layer three above protocol message.
3. subscriber equipment according to claim 2, is characterized in that,
The address information of described network selection functional entity is the IP address of described network selection functional entity; Or,
The address information of described network selection functional entity is the title of described network selection functional entity, described for the unit that receives the network selective information that network side provides specifically for inquire about the IP address that obtains described network selection functional entity by name server.
4. subscriber equipment according to claim 1, is characterized in that, also comprises:
Send the unit of the request for obtaining network selective information to described network side.
5. subscriber equipment according to claim 4, is characterized in that, the described unit that sends the request for obtaining network selective information to described network side specifically for:
Carry out in initial access process at described subscriber equipment, or complete after initial access process, or executing location upgrade time, or completing place upgrade after, or when described subscriber equipment is subject to the triggering of particular event, send described for obtaining the request of network selective information to described network side.
6. subscriber equipment according to claim 1, is characterized in that, described for the unit that receives the network selective information that network side provides specifically for:
Receive the network selective information that described network side provides by access network entity.
7. subscriber equipment according to claim 6, is characterized in that, described for the unit that receives the network selective information that network side provides specifically for:
Receive described Access Network by access layer information, or the network selective information of the above protocol message transmission of layer three.
8. subscriber equipment according to claim 1, is characterized in that, the described unit accessing for the network of selecting described pressure network to select instruction to specify according to described network selective information specifically for:
The network of selecting described pressure network to select instruction to specify in conjunction with the network selection strategy of described network selective information and self storage accesses, wherein, the described network selection strategy of self storing comprises: support the strategy that described network side forces network to be selected.
9. a method for selecting network by user equipment, wherein, subscriber equipment and network side connect, and it is characterized in that, comprising:
Described subscriber equipment receives network selective information and the pressure network selection instruction that network selection functional entity is formulated;
The network that described subscriber equipment selects described pressure network to select instruction to specify according to described network selective information accesses;
Wherein, described network selective information is the information of described subscriber equipment all or part of available network in current location, and described network selection functional entity is in core net, to have the entity of selecting network function; To be described subscriber equipment receive according to the address information of the network selection functional entity of self configuration described network selective information, or the address information of the network selection functional entity that provides according to network side of described subscriber equipment receives.
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| CN102595560B (en) * | 2012-02-17 | 2015-04-08 | 华为技术有限公司 | Method, device and system for searching and selecting network |
| CN103533611A (en) * | 2012-07-06 | 2014-01-22 | 华为技术有限公司 | Methods for selecting wireless access network and sending network selecting strategy and device |
| CN103152721A (en) * | 2013-03-28 | 2013-06-12 | 东莞宇龙通信科技有限公司 | Terminal, mobility management entity, system and network access method |
| CN109429295B (en) * | 2017-08-31 | 2021-11-23 | 中兴通讯股份有限公司 | Method for selecting AMF, system and storage medium |
| CN111163493B (en) * | 2018-11-08 | 2022-08-19 | 中国电信股份有限公司 | Communication configuration method, system and related equipment |
| CN112469105A (en) * | 2020-11-16 | 2021-03-09 | 上海擎昆信息科技有限公司 | Hybrid network access method and device |
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