CN103037469A - Access network selection method, user equipment, system and network selection strategy unit - Google Patents
Access network selection method, user equipment, system and network selection strategy unit Download PDFInfo
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- CN103037469A CN103037469A CN2011103024714A CN201110302471A CN103037469A CN 103037469 A CN103037469 A CN 103037469A CN 2011103024714 A CN2011103024714 A CN 2011103024714A CN 201110302471 A CN201110302471 A CN 201110302471A CN 103037469 A CN103037469 A CN 103037469A
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- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
Abstract
The invention discloses an access network selection method, user equipment, a system and a network selection strategy unit. The method includes that the network selection strategy unit receives network selection strategy requests with access network information and sent by the user equipment, the network selection strategy unit obtains access network state information and user configuration information according to the network selection strategy requests, and the network selection strategy unit formulates network selection strategy information according to the access network state information and the user configuration information and sends the network selection strategy information to the user equipment. According to the access network selection method, the user equipment, the system and the network selection strategy unit, the network selection strategy unit can fully obtain the access network information of the position of user experience (UE), the UE detects an MAC address of a wireless local area network (WLAN) access point (AP) and reports to the network selection strategy unit, the UE lists the frequently accessed service set identifiers (SSID) and reports to a user information database unit in a certain time cycle, and the network selection strategy unit selects the best WLAN AP for the user according to the access network information provided by the UE.
Description
Technical field
The present invention relates to Cellular Networks and the Technology of Wireless Access Networks in the communications field, particularly, relate to a kind of access network selection method, subscriber equipment, system and network selection policy unit.
Background technology
Along with a large amount of deployment of WLAN focus, the same area may be covered jointly by a plurality of WLAN access points and cellular basestation, comes to select to become more and more important for the user carries out reasonable network according to user's demand and the operating position of network.At present, there are following defective in the use of existing network and existing network selection technical scheme:
1) UE (User Equipment, subscriber equipment) scanning WLAN (Wireless Local Area Networks, WLAN) AP (Access Point, access point) information, by the user according to available SSID (Service Set Identifier, service set) choose WLAN access needs the user to participate in complicated operation, has affected user's experience.
2) nature static of network selection strategy causes the unbalanced of network use; No matter be the actual operating position that strategy that terminal static configuration or network provide is not all considered WLAN and Cellular Networks; For example, even current WLAN is congested, also can't carries out corresponding strategy and adjust.
3) network lacks corresponding information, and the amount of information of the Access Network information of terminal to report is not enough at present, for example, and the SSID of WLAN near; The network selection policy unit lacks the mechanism with other network element exchange message, can't carry out the selection of network according to the information of end side and the Internet Use information of network side.
4) lack the corresponding method that WLAN distributes and Cellular Networks accesses accurately, a Cellular Networks residential quarter covers lower, a plurality of, as to belong to different owners WLAN accesses may be arranged, so that network is difficult to only know from the geographical location information of terminal to report the real network signal condition of its terminal.
Realize the optimization of network selection, the key issue that solves is how the network selection policy unit of network side can accurately know the residing network environment of UE, the available situation that comprises other non-3 GPP access network (such as WLAN, WiMAX etc.) at the cellular network at the current place of UE and place, the signal strength signal intensity of each access point etc.
Application number is that the Chinese invention patent application of 200910090433.X has proposed a kind of UE is linked into core net by the WLAN Access Network method.UE at first accesses EPC (packet-based core networks), with ANDSF (Access Network Discovery and Selection Function, access network discovery and selection function) carry out mutual (carrying self positional information and ability information), ANDSF returns WLAN Access Network information (wlan network that the wireless core network information that the WLAN Access Network is accessible and UE current location exist) to UE, and then UE sets up and being connected of WLAN Access Network; When authenticating, the WLAN Access Network sends EAP (extensible authentication protocol) request to UE, UE is according to the WLAN Access Network information that obtains and the access capability of self, selects a wireless core network and corresponding identity is carried in the EAP answer message to return to the WLAN Access Network.
Application number is that the Chinese invention patent application of 200910179815.X discloses a kind of access network information acquisition method.Terminal sends access network request to ANDSF, ANDSF obtains the Access Network attribute information from AAA (authentication authorized charging server), and select one or more Access Networks and Access Network information is sent to terminal according to the ability of terminal (protocol type of support, whether need to access the Access Network of trust) and Access Network attribute information (agreement supported of Access Network, the trusting relationship of Access Network), terminal also accesses according to the Access Network Information Selection Access Network that receives.
Application number is the system of selection that 201010117475.0 Chinese invention patent application has been mentioned a kind of terminal access AP.Collect the information (comprising information strength, perceived noisiness, transmitted power) of the same UE that a plurality of AP of its control report by Radio Access Controller AC, for certain particular UE, for it reselects AP, and be special-purpose MAC (the Media Access Control of this AP dynamic assignment, medium access control) address, be used for and UE between communicate.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art:
Take existing ANDSF scheme as example, UE can carry the positional information of oneself and the information such as access network type of preference in the solicited message of ANDSF, it is the ID (Cell_Id) of cellular cell that present UE can provide the granularity of positional information, the positional information that ANDSF provides according to UE finds near the available Access Network information UE, database of existence has provided the mapping relations between cellular network and non-3 GPP access network (such as WLAN) in ANDSF, and is as shown in table 1:
Table 1
But because the coverage of Cellular Networks and non-3 GPP access network (such as WLAN) differs greatly, deployment scenario is complicated, above-mentioned mapping relations have only embodied a kind of rough deployment relation, and can not embody the signal strength signal intensity which WLAN Access Network and each WLAN Access Network are specifically arranged under the current position of UE, thereby can not provide the network selection strategy to UE targetedly.
Above-mentioned application number is the patent application of 200910090433.X, carry out mutual information between UE and the ANDSF and include only position and the ability information of UE, the wlan network that ANDSF provides the accessible wireless core network information of WLAN Access Network and UE current location to exist to UE, UE only selects suitable Access Network according to these information, do not consider the Access Network loading condition, may cause some AP load overweight, affect overall performance of network.
Above-mentioned application number is the patent application of 200910179815.X, can solve that UE before switching can't obtain the attribute information of Access Network and the problem that affects terminal switching efficiency and business continuance, and the Access Network attribute information that this scheme UE can obtain comprises the agreement of Access Network support, the trusting relationship of Access Network etc., but does not consider the loading condition of Access Network.
Above-mentioned application number is 201010117475.0 patent application, this scheme compared with prior art, decide the scheme that accesses which AP in its sole discretion by terminal scanning AP, strengthened the control dynamics of network side AC for UE selection access AP, can realize AP load balancing to a certain extent, but it is effective that this scheme only has when moving between UE each AP under same AC control, can not realize load balancing between the AP under many AC controls.
Summary of the invention
The objective of the invention is to propose a kind of access network selection method, subscriber equipment, system and network selection policy unit for the not good defective of access network selection access effect in the prior art, to strengthen the technique effect of Access Network core network access.
For achieving the above object, according to an aspect of the present invention, provide a kind of access network selection method.
Access network selection method according to the embodiment of the invention comprises:
The network selection policy unit receives the network selection strategy request of the Access Network information of carrying of subscriber equipment initiation;
The network selection policy unit obtains the Access Network state information according to the network selection strategy request;
The network selection policy unit is formulated the network selection policy information according to the Access Network state information, and the network selection policy information is handed down to subscriber equipment.
In technique scheme, method also comprises:
The network selection policy unit obtains user configuration information according to the network selection strategy request;
The network selection policy unit is formulated the network selection policy information according to Access Network state information and user configuration information, and the network selection policy information is handed down to subscriber equipment.
In technique scheme, the step that the network selection policy unit obtains the Access Network state information comprises:
The load information of the insertion point of radio local network by network management system or signalling analysis system acquisition MAC Address sign; Perhaps,
The load information of the Cellular Networks residential quarter by network management system or signalling analysis system queries Cell_Id sign.
In technique scheme, the step that the network selection policy unit obtains user configuration information comprises: obtain accessible service set tabulation from the user profile library unit.
In technique scheme, the step that the network selection policy unit is formulated the network selection policy information comprises:
When near the access load that has a plurality of available insertion point of radio local networks and this access point the subscriber equipment self was not high, then the high insertion point of radio local network access of priority was selected in suggestion;
WLAN (wireless local area network) access load height or signal accessible near subscriber equipment self are not strong, and the residing Cellular Networks cell signal of while subscriber equipment is strong and the access load is low, then suggestion access Cellular Networks;
When the residing Cellular Networks cell signal of subscriber equipment is strong but the access load is high, then advise the priority access WLAN.
In technique scheme, the source of service set comprises the signatory and user equipment to report of user in the service set tabulation, and the service set of user equipment to report is initiatively selected according to the user by subscriber equipment and the service set of the historical WLAN of using obtains.
For achieving the above object, according to an aspect of the present invention, provide a kind of access network selection method.
Access network selection method according to the embodiment of the invention comprises:
Subscriber equipment is surveyed near the Access Network information self, carries Access Network information and initiates the network selection strategy request to the network selection policy unit;
Subscriber equipment receives the network selection policy unit according to the network selection policy information of Access Network state information and user configuration information formulation.
In technique scheme, the step that subscriber equipment is surveyed near the Access Network information self comprises:
Subscriber equipment detects near the WLAN relevant information self;
Subscriber equipment is surveyed near the Cellular Networks relevant information self;
The subscriber equipment recording user is to the selection preference information of each Access Network;
The WLAN relevant information comprises: service set information, mac address information, beacon frame information, signal quality information;
The Cellular Networks relevant information comprises: the Cell_Id information of Cellular Networks, signal quality information.
In technique scheme, method also comprises: gather that the user initiatively selects and the information of the service set of the historical WLAN of using, and with this information reporting to the User Information Database unit.
For achieving the above object, according to another aspect of the present invention, provide a kind of network selection policy unit.
Network selection policy unit according to the embodiment of the invention comprises:
The request receiving module is for the network selection strategy request of the Access Network information of carrying that receives the subscriber equipment initiation;
The information acquisition module is used for according to the network selection strategy request, obtains Access Network state information and user configuration information;
The policy development module is used for formulating the network selection policy information according to described Access Network state information and user configuration information, and the network selection policy information is handed down to subscriber equipment.
In technique scheme, the information acquisition module comprises:
First obtains submodule, is used for the load information by the insertion point of radio local network of network management system or signalling analysis system acquisition MAC Address sign;
Second obtains submodule, is used for the load information by the Cellular Networks residential quarter of network management system or signalling analysis system queries Cell_Id sign.
In technique scheme, the information acquisition module also comprises:
The 3rd obtains submodule, is used for obtaining accessible service set tabulation from the user profile library unit.
In technique scheme, the policy development module comprises:
The access judge module is used for WLAN state and the residing Cellular Networks subzone network of the subscriber equipment state of judging that subscriber equipment self is neighbouring;
The access suggestion module is used for formulating the network selection Policy Info: according to WLAN state and Cellular Networks subzone network state
When near the access load that has a plurality of available insertion point of radio local networks and this access point the subscriber equipment self was not high, then the high insertion point of radio local network access of priority was selected in suggestion;
WLAN (wireless local area network) access load height or signal accessible near subscriber equipment self are not strong, and the residing Cellular Networks cell signal of while subscriber equipment is strong and the access load is low, then suggestion access Cellular Networks;
When the residing Cellular Networks cell signal of subscriber equipment is strong but the access load is high, then advise the priority access WLAN.
In technique scheme, the source of service set comprises the signatory and user equipment to report of user in the service set tabulation, and the service set of user equipment to report is initiatively selected according to the user by subscriber equipment and the service set of the historical WLAN of using obtains.
For achieving the above object, according to another aspect of the present invention, provide a kind of subscriber equipment.
Subscriber equipment according to the embodiment of the invention comprises:
The probe requests thereby module is used for surveying near self Access Network information, carries Access Network information and initiates the network selection strategy request to the network selection policy unit;
The strategy receiver module is used for receiving the network selection policy unit according to the network selection policy information of Access Network state information and user configuration information formulation.
In technique scheme, the probe requests thereby module comprises:
The first detecting module is for detection of near the WLAN relevant information self;
The second detecting module is used for surveying near self Cellular Networks relevant information;
The information recording/module is used for recording user to the selection preference information of each Access Network;
The WLAN relevant information comprises: service set information, mac address information, beacon frame information, signal quality information;
The Cellular Networks relevant information comprises: the Cell_Id information of Cellular Networks, signal quality information.
In technique scheme, subscriber equipment also comprises:
The sign acquisition module be used for to gather that the user initiatively selects and the information of the service set of the historical WLAN of using, and with this information reporting to the User Information Database unit.
For achieving the above object, according to another aspect of the present invention, provide a kind of access network selection system.
Access network selection system according to the embodiment of the invention comprises:
The network selection policy unit, the network selection strategy request that is used for the Access Network information of carrying of reception subscriber equipment initiation, according to the network selection strategy request, obtain Access Network state information and user configuration information, and formulate the network selection policy information according to Access Network state information and user configuration information, and the network selection policy information is handed down to subscriber equipment;
Subscriber equipment for surveying near self Access Network information, carries described Access Network information and initiates the network selection strategy request to the network selection policy unit, receives the network selection policy unit according to the network selection policy information of Access Network state information and user configuration information formulation.
In technique scheme, system also comprises:
The network state acquiring unit is used for the regularly related load information of each network element of collection;
The user profile library unit is for the service set of storing user subscription and user equipment to report.
In technique scheme, the network selection policy unit comprises:
The request receiving module is for the network selection strategy request of the Access Network information of carrying that receives the subscriber equipment initiation;
The information acquisition module is used for according to the network selection strategy request, obtains Access Network state information and user configuration information;
The policy development module is used for formulating the network selection policy information according to Access Network state information and user configuration information, and the network selection policy information is handed down to subscriber equipment;
Described information acquisition module comprises:
First obtains submodule, is used for the load information by the insertion point of radio local network of network management system or signalling analysis system acquisition MAC Address sign;
Second obtains submodule, is used for the load information by the Cellular Networks residential quarter of network management system or signalling analysis system queries Cell_Id sign;
The 3rd obtains submodule, is used for obtaining accessible service set tabulation from the user profile library unit.
In technique scheme, the policy development module comprises:
The access judge module is used for WLAN state and the residing Cellular Networks subzone network of the subscriber equipment state of judging that subscriber equipment self is neighbouring;
The access suggestion module is used for formulating the network selection Policy Info: according to WLAN state and Cellular Networks subzone network state
When near the access load that has a plurality of available insertion point of radio local networks and this access point the subscriber equipment self was not high, then the high insertion point of radio local network access of priority was selected in suggestion;
WLAN (wireless local area network) access load height or signal accessible near subscriber equipment self are not strong, and the residing Cellular Networks cell signal of while subscriber equipment is strong and the access load is low, then suggestion access Cellular Networks;
When the residing Cellular Networks cell signal of subscriber equipment is strong but the access load is high, then advise the priority access WLAN.
In technique scheme, the source of service set comprises the signatory and user equipment to report of user in the service set tabulation, and the service set of user equipment to report is initiatively selected according to the user by subscriber equipment and the service set of the historical WLAN of using obtains.
In technique scheme, subscriber equipment comprises:
The probe requests thereby module is used for surveying near self Access Network information, carries Access Network information and initiates the network selection strategy request to the network selection policy unit;
The strategy receiver module is used for receiving the network selection policy unit according to the network selection policy information of Access Network state information and user configuration information formulation;
The probe requests thereby module comprises:
The first detecting module is for detection of near the WLAN relevant information self;
The second detecting module is used for surveying near self Cellular Networks relevant information;
The information recording/module is used for recording user to the selection preference information of each Access Network;
The WLAN relevant information comprises: service set information, mac address information, beacon frame information, signal quality information;
The Cellular Networks relevant information comprises: the Cell_Id information of Cellular Networks, signal quality information.
In technique scheme, subscriber equipment also comprises:
The sign acquisition module be used for to gather that the user initiatively selects and the information of the service set of the historical WLAN of using, and with this information reporting to the User Information Database unit.
The access network selection method of various embodiments of the present invention, subscriber equipment, system and network selection policy unit, UE reports a plurality of Access Network information to the network selection policy unit, such as the MAC Address of UE positional information (Cell_Id), the corresponding AP of WLAN SSID, signal strength signal intensity, beacon frame etc., thereby make the network selection policy unit can fully know the Access Network information of UE present position; The expansion of UE fulfillment capability detects the MAC Address of WLAN AP under certain SSID, and reports the network selection policy unit, such as ANDSF etc.; UE will initiatively select and the ssid list of the historical WLAN that uses according to the user, with the regular hour periodic report to the User Information Database unit in the core net; The Access Network information that the network selection policy unit provides according to UE, obtain the corresponding state information of Access Network such as the MAC Address of AP, the Cell_Id of Cellular Networks, be the WLAN access AP of user selection optimum, as select the lighter AP access of load according to the number of users that connects or enliven on the AP of WLAN.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of writing, claims and accompanying drawing.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Accompanying drawing is used to provide a further understanding of the present invention, and consists of the part of specification, is used for together with embodiments of the present invention explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart according to embodiment of the invention access network selection embodiment of the method;
Fig. 2 is the structural representation according to embodiment of the invention access network selection system embodiment.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, is not intended to limit the present invention.
Embodiment of the method
According to the embodiment of the invention, a kind of access network selection method is provided, Fig. 1 is the flow chart according to embodiment of the invention access network selection embodiment of the method.As shown in Figure 1, present embodiment comprises:
Step S102:UE surveys the relevant information that near the Access Network information self: UE detects near the WLAN of UE, such as indexs of correlation such as SSID, MAC Address, beacon frame, signal qualitys; UE surveys near the Cellular Networks information the UE, such as the Cell_Id of Cellular Networks, the indexs of correlation such as signal quality;
The UE recording user is to the selection preference of each Access Network and report the User Information Database unit, such as UE accessible SSID and the tabulation of access frequency thereof;
Step S104:UE carries Access Network information and initiates network selection strategy request: UE to network selection policy unit initiation request to the network selection policy unit, the Access Network relevant information that detects is carried at sends to the network selection policy unit in the message, transmission can be by existing S14 interface (the S14 interface be the logic interfacing between UE and network selection policy unit), or the mode by note etc., the information of carrying includes, but are not limited to following content:
The SSID of the WLAN Access Network that (1) signal that detects of UE is stronger and the MAC Address of corresponding AP and corresponding information such as signal strength signal intensity etc., for example, if any a plurality of AP, can report the information of the strongest several AP of signal strength signal intensity;
(2) the indicated information of beacon frame, comprise this WLAN whether free, can access the information such as Internet;
(3) the Cellular Networks cell ID Cell_Id at UE place;
Need to prove, access network selection method and apparatus of the present invention, its core processing unit-network selection policy unit is in the core net in the mobile radio communication, and it links to each other with UE by various Access Networks (comprising Cellular Networks and non-3 GPP access network, such as WLAN, WiMAX etc.);
Step S106: the network selection policy unit obtains Access Network state information and user configuration information: the network selection policy unit is after the request of receiving UE, by network state acquiring unit inquiry Access Network load information, the load information of corresponding WLAN AP is provided from network management system such as the MAC Address that provides according to terminal, such as service traffics, current access or active users etc., inquire about the load information of the Cellular Networks residential quarter of Cell_Id sign by network management system, signalling analysis system etc.;
The network selection policy unit is obtained user related information from the User Information Database unit, such as accessible ssid list;
Step S108: the network selection policy unit is formulated network selection Policy Info: network selection policy unit according to Access Network state information and user configuration information and is allowed the Access Network information that accesses according to loading condition, the user of each Access Network that obtains, signal strength signal intensity, the user of each Access Network that provides in conjunction with UE self use the information such as preference, formulate corresponding access network selection strategy; As:
(1) accessible WLAN access load is higher or signal is strong not near UE, the tactful form of then formulating as: do not access WLAN;
(2) a plurality of available WLAN AP are arranged near UE self, it can when guaranteeing preferably, according to the priority of SSID in the ssid list, determine that access strategy is to user's service quality:
Because " access SSID=SSIDl, the priority of the AP of AP MAC=MAC1 is 1; Access SSID=SSID2, the priority of the AP of AP MAC=MAC2 is 2 ", so select the high AP of access priority, namely access SSID=SSID1, the AP of AP MAC=MAC1;
(3) when the residing Cellular Networks cell signal of UE is very strong but load is serious, the tactful form of then formulating is such as priority access WLAN, and the priority of access Cellular Networks reduces;
(4) the WLAN (wireless local area network) access load height or the signal that can be accessed by near subscriber equipment self are not strong, and the residing Cellular Networks cell signal of while subscriber equipment is strong and the access load is low, then advise the access Cellular Networks;
Step S110: the network selection policy unit is handed down to UE with the network selection policy information: the mode of transmission can connect by IP, and such as existing S14 interface, perhaps the mode of note connects; UE carries out network according to this network selection policy information and selects, if the network insertion failure can inform that the user carries out manual network and selects.
The present invention also provides another kind of embodiment, describes among above-mentioned Fig. 1 embodiment the acquisition process of Access Network state information among the step S106 in detail:
As shown in Figure 2, the network state memory cell that can store each Access Network load information links to each other with the network selection policy unit, the network state memory cell can regularly gather the related load information of each network element, and this network state memory cell comprises the correlation analysis unit such as network management system, signalling analysis system.
The load information example for cellular-specific net residential quarter that the network state memory cell is returned to the network selection policy unit is as shown in table 2:
Table 2
The load information for specific AP that the network state memory cell is returned to the network selection policy unit, as shown in table 3:
Table 3
Need to prove that in step S102, S108, the SSID that the user of UE can be accessed by has two kinds of update modes: a class is that network is informed the SSID that UE is accessible, the autonomous SSID that selects and successfully accessed of the another kind of user of being.
UE safeguards ssid list according to user's use characteristic, and this tabulation can arrange according to the usage frequency of SSID in the ssid list its priority, and the user also can manage manually or automatically to this tabulation, and UE will report its ssid list with some cycles.
The User Information Database unit that links to each other with the network selection policy unit, be in together in the core net with network selection policy unit, network state acquiring unit, the storage user allows the ssid list that accesses in the User Information Database unit, and the source of this ssid list has two: the signatory and user's side of user reports.
Access network selection method of the present invention, UE reports a plurality of Access Network information to the network selection policy unit, such as the MAC Address of UE positional information (Cell_Id), the corresponding AP of WLAN SSID, signal strength signal intensity, beacon frame etc., thereby make the network selection policy unit can fully know the Access Network information of UE present position; The expansion of UE fulfillment capability detects the MAC Address of WLAN AP under certain SSID, and reports the network selection policy unit, such as ANDSF etc.; UE will initiatively select and the ssid list of the historical WLAN that uses according to the user, with the regular hour periodic report to the User Information Database unit in the core net; The Access Network information that the network selection policy unit provides according to UE, obtain the corresponding state information of Access Network such as the MAC Address of AP, the Cell_Id of Cellular Networks, be the WLAN access AP of user selection optimum, as select the lighter AP access of load according to the number of users that connects or enliven on the AP of WLAN.
Device embodiment
According to the embodiment of the invention, provide a kind of network selection policy unit.This network selection policy unit comprises:
The request receiving module is for the network selection strategy request of the Access Network information of carrying that receives the subscriber equipment initiation;
The information acquisition module is used for according to the network selection strategy request, obtains Access Network state information and user configuration information;
The policy development module is used for formulating the network selection policy information according to Access Network state information and user configuration information, and the network selection policy information is handed down to subscriber equipment.
The information acquisition module comprises:
First obtains submodule, is used for the load information by the insertion point of radio local network of network management system or signalling analysis system acquisition MAC Address sign;
Second obtains submodule, is used for the load information by the Cellular Networks residential quarter of network management system or signalling analysis system queries Cell_Id sign.
The information acquisition module also comprises:
The 3rd obtains submodule, is used for obtaining accessible service set tabulation from the user profile library unit.
The policy development module comprises:
The access judge module is used for WLAN state and the residing Cellular Networks subzone network of the subscriber equipment state of judging that subscriber equipment self is neighbouring;
The access suggestion module is used for formulating the network selection Policy Info: according to WLAN state and Cellular Networks subzone network state
When near the access load that has a plurality of available insertion point of radio local networks and this access point the subscriber equipment self was not high, then the high insertion point of radio local network access of priority was selected in suggestion;
WLAN (wireless local area network) access load height or signal accessible near subscriber equipment self are not strong, and the residing Cellular Networks cell signal of while subscriber equipment is strong and the access load is low, then suggestion access Cellular Networks;
When the residing Cellular Networks cell signal of subscriber equipment is strong but the access load is high, then advise the priority access WLAN.
The source of service set comprises the signatory and user equipment to report of user in the service set tabulation, and the service set of user equipment to report is initiatively selected according to the user by subscriber equipment and the service set of the historical WLAN of using obtains.
According to the embodiment of the invention, provide a kind of subscriber equipment.This subscriber equipment (User Equipment, i.e. UE) comprising:
The probe requests thereby module is used for surveying near self Access Network information, carries Access Network information and initiates the network selection strategy request to the network selection policy unit;
The strategy receiver module is used for receiving the network selection policy unit according to the network selection policy information of Access Network state information and user configuration information formulation.
The probe requests thereby module comprises:
The first detecting module is for detection of near the WLAN relevant information self;
The second detecting module is used for surveying near self Cellular Networks relevant information;
The information recording/module is used for recording user to the selection preference information of each Access Network;
The Cellular Networks relevant information comprises: the Cell_Id information of Cellular Networks, signal quality information;
The WLAN relevant information comprises: service set information, mac address information, beacon frame information, signal quality information.
Above-mentioned subscriber equipment also comprises:
The sign acquisition module be used for to gather that the user initiatively selects and the information of the service set of the historical WLAN of using, and with this information reporting to the User Information Database unit.
Network selection policy unit of the present invention and UE, UE reports a plurality of Access Network information to the network selection policy unit, such as the MAC Address of UE positional information (Cell_Id), the corresponding AP of WLAN SSID, signal strength signal intensity, beacon frame etc., thereby make the network selection policy unit can fully know the Access Network information of UE present position; The expansion of UE fulfillment capability detects the MAC Address of WLAN AP under certain SSID, and reports the network selection policy unit, such as ANDSF etc.; UE will initiatively select and the ssid list of the historical WLAN that uses according to the user, with the regular hour periodic report to the User Information Database unit in the core net; The Access Network information that the network selection policy unit provides according to UE, obtain the corresponding state information of Access Network such as the MAC Address of AP, the Cell_Id of Cellular Networks, be the WLAN access AP of user selection optimum, as select the lighter AP access of load according to the number of users that connects or enliven on the AP of WLAN.
System embodiment
According to the embodiment of the invention, provide a kind of access network selection system.This access network selection system comprises:
The network selection policy unit, the network selection strategy request that is used for the Access Network information of carrying of reception subscriber equipment initiation, according to the network selection strategy request, obtain Access Network state information and user configuration information, and formulate the network selection policy information according to Access Network state information and user configuration information, and the network selection policy information is handed down to subscriber equipment;
Subscriber equipment (User Equipment, be UE), for surveying near self Access Network information, carry Access Network information and initiate the network selection strategy request to the network selection policy unit, receive the network selection policy unit according to the network selection policy information of Access Network state information and user configuration information formulation.
Preferably, above-mentioned access network selection system also comprises:
The user profile library unit is for the service set of storing user subscription and user equipment to report;
The network state acquiring unit is used for the regularly related load information of each network element of collection.
The network selection policy unit comprises:
The request receiving module is for the network selection strategy request of the Access Network information of carrying that receives the subscriber equipment initiation;
The information acquisition module is used for according to the network selection strategy request, obtains Access Network state information and user configuration information;
The policy development module is used for formulating the network selection policy information according to Access Network state information and user configuration information, and the network selection policy information is handed down to subscriber equipment;
The information acquisition module comprises:
First obtains submodule, is used for the load information by the insertion point of radio local network of network management system or signalling analysis system acquisition MAC Address sign;
Second obtains submodule, is used for the load information by the Cellular Networks residential quarter of network management system or signalling analysis system queries Cell_Id sign;
The 3rd obtains submodule, is used for obtaining accessible service set tabulation from the user profile library unit.
The policy development module comprises:
The access judge module is used for WLAN state and the residing Cellular Networks subzone network of the subscriber equipment state of judging that subscriber equipment self is neighbouring;
The access suggestion module is used for formulating the network selection Policy Info: according to WLAN state and Cellular Networks subzone network state
When near the access load that has a plurality of available insertion point of radio local networks and this access point the subscriber equipment self was not high, then the high insertion point of radio local network access of priority was selected in suggestion;
WLAN (wireless local area network) access load height or signal accessible near subscriber equipment self are not strong, and the residing Cellular Networks cell signal of while subscriber equipment is strong and the access load is low, then suggestion access Cellular Networks;
When the residing Cellular Networks cell signal of subscriber equipment is strong but the access load is high, then advise the priority access WLAN.
The source of service set comprises the signatory and user equipment to report of user in the service set tabulation, and the service set of user equipment to report is initiatively selected according to the user by subscriber equipment and the service set of the historical WLAN of using obtains.
Subscriber equipment comprises:
The probe requests thereby module is used for surveying near self Access Network information, carries Access Network information and initiates the network selection strategy request to the network selection policy unit;
The strategy receiver module is used for receiving the network selection policy unit according to the network selection policy information of Access Network state information and user configuration information formulation;
The probe requests thereby module comprises:
The first detecting module is for detection of near the WLAN relevant information self;
The second detecting module is used for surveying near self Cellular Networks relevant information;
The information recording/module is used for recording user to the selection preference information of each Access Network;
The Cellular Networks relevant information comprises: the Cell_Id information of Cellular Networks, signal quality information;
The WLAN relevant information comprises: service set information, mac address information, beacon frame information, signal quality information.
Subscriber equipment also comprises:
The sign acquisition module be used for to gather that the user initiatively selects and the information of the service set of the historical WLAN of using, and with this information reporting to the User Information Database unit.
Access network selection of the present invention system, UE reports a plurality of Access Network information to the network selection policy unit, such as the MAC Address of UE positional information (Cell_Id), the corresponding AP of WLAN SSID, signal strength signal intensity, beacon frame etc., thereby make the network selection policy unit can fully know the Access Network information of UE present position; The expansion of UE fulfillment capability detects the MAC Address of WLAN AP under certain SSID, and reports the network selection policy unit, such as ANDSF etc.; UE will initiatively select and the ssid list of the historical WLAN that uses according to the user, with the regular hour periodic report to the User Information Database unit in the core net; The Access Network information that the network selection policy unit provides according to UE, obtain the corresponding state information of Access Network such as the MAC Address of AP, the Cell_Id of Cellular Networks, be the WLAN access AP of user selection optimum, as select the lighter AP access of load according to the number of users that connects or enliven on the AP of WLAN.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: the above only is the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment the present invention is had been described in detail, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (24)
1. an access network selection method is characterized in that, comprising:
The network selection policy unit receives the network selection strategy request of the Access Network information of carrying of subscriber equipment initiation;
Described network selection policy unit obtains the Access Network state information according to described network selection strategy request;
Described network selection policy unit is formulated the network selection policy information according to described Access Network state information, and described network selection policy information is handed down to subscriber equipment.
2. method according to claim 1 is characterized in that, also comprises:
Described network selection policy unit obtains user configuration information according to described network selection strategy request;
Described network selection policy unit is formulated the network selection policy information according to described Access Network state information and user configuration information, and described network selection policy information is handed down to subscriber equipment.
3. method according to claim 1 and 2 is characterized in that, the step that the network selection policy unit obtains the Access Network state information comprises:
The load information of the insertion point of radio local network by network management system or signalling analysis system acquisition MAC Address sign; Perhaps,
The load information of the Cellular Networks residential quarter by network management system or signalling analysis system queries Cell_Id sign.
4. method according to claim 2 is characterized in that, the step that the network selection policy unit obtains user configuration information comprises: obtain accessible service set tabulation from the user profile library unit.
5. according to claim 3 or 4 described methods, it is characterized in that the step that the network selection policy unit is formulated the network selection policy information comprises:
When near the access load that has a plurality of available insertion point of radio local networks and this access point the described subscriber equipment self was not high, then the high insertion point of radio local network access of priority was selected in suggestion;
WLAN (wireless local area network) access load height or signal accessible near described subscriber equipment self are not strong, and the residing Cellular Networks cell signal of described subscriber equipment of while is strong and the access load is low, then suggestion access Cellular Networks;
When the residing Cellular Networks cell signal of subscriber equipment is strong but the access load is high, then advise the priority access WLAN.
6. method according to claim 4, it is characterized in that, the source of service set comprises the signatory and user equipment to report of user in the described service set tabulation, and the service set of user equipment to report is initiatively selected according to the user by subscriber equipment and the service set of the historical WLAN of using obtains.
7. an access network selection method is characterized in that, comprising:
Subscriber equipment is surveyed near the Access Network information self, carries described Access Network information and initiates the network selection strategy request to the network selection policy unit;
Described subscriber equipment receives described network selection policy unit according to the network selection policy information of Access Network state information and user configuration information formulation.
8. method according to claim 7 is characterized in that, the step that described subscriber equipment is surveyed near the Access Network information self comprises:
Described subscriber equipment detects near the WLAN relevant information self;
Described subscriber equipment is surveyed near the Cellular Networks relevant information self;
Described subscriber equipment recording user is to the selection preference information of each Access Network;
Described WLAN relevant information comprises: service set information, mac address information, beacon frame information, signal quality information;
Described Cellular Networks relevant information comprises: the Cell_Id information of Cellular Networks, signal quality information.
9. method according to claim 7 is characterized in that, also comprises:
Gather that the user initiatively selects and the information of the service set of the historical WLAN of using, and with this information reporting to the User Information Database unit.
10. a network selection policy unit is characterized in that, comprising:
The request receiving module is for the network selection strategy request of the Access Network information of carrying that receives the subscriber equipment initiation;
The information acquisition module is used for according to described network selection strategy request, obtains Access Network state information and user configuration information;
The policy development module is used for formulating the network selection policy information according to described Access Network state information and user configuration information, and described network selection policy information is handed down to subscriber equipment.
11. network selection policy unit according to claim 10 is characterized in that, described information acquisition module comprises:
First obtains submodule, is used for the load information by the insertion point of radio local network of network management system or signalling analysis system acquisition MAC Address sign;
Second obtains submodule, is used for the load information by the Cellular Networks residential quarter of network management system or signalling analysis system queries Cell_Id sign.
12. network selection policy unit according to claim 10 is characterized in that, described information acquisition module also comprises:
The 3rd obtains submodule, is used for obtaining accessible service set tabulation from the user profile library unit.
13. network selection policy unit according to claim 12 is characterized in that, described policy development module comprises:
The access judge module is used for WLAN state and the residing Cellular Networks subzone network of the described subscriber equipment state of judging that described subscriber equipment self is neighbouring;
The access suggestion module is used for formulating the network selection Policy Info: according to described WLAN state and Cellular Networks subzone network state
When near the access load that has a plurality of available insertion point of radio local networks and this access point the described subscriber equipment self was not high, then the high insertion point of radio local network access of priority was selected in suggestion;
WLAN (wireless local area network) access load height or signal accessible near described subscriber equipment self are not strong, and the residing Cellular Networks cell signal of described subscriber equipment of while is strong and the access load is low, then suggestion access Cellular Networks;
When the residing Cellular Networks cell signal of subscriber equipment is strong but the access load is high, then advise the priority access WLAN.
14. network selection policy unit according to claim 12, it is characterized in that, the source of service set comprises the signatory and user equipment to report of user in the described service set tabulation, and the service set of user equipment to report is initiatively selected according to the user by subscriber equipment and the service set of the historical WLAN of using obtains.
15. a subscriber equipment is characterized in that, comprising:
The probe requests thereby module is used for surveying near self Access Network information, carries described Access Network information and initiates the network selection strategy request to the network selection policy unit;
The strategy receiver module is used for receiving described network selection policy unit according to the network selection policy information of Access Network state information and user configuration information formulation.
16. subscriber equipment according to claim 15 is characterized in that, described probe requests thereby module comprises:
The first detecting module is for detection of near the WLAN relevant information self;
The second detecting module is used for surveying near self Cellular Networks relevant information;
The information recording/module is used for recording user to the selection preference information of each Access Network;
Described WLAN relevant information comprises: service set information, mac address information, beacon frame information, signal quality information;
Described Cellular Networks relevant information comprises: the Cell_Id information of Cellular Networks, signal quality information.
17. subscriber equipment according to claim 15 is characterized in that, also comprises:
The sign acquisition module be used for to gather that the user initiatively selects and the information of the service set of the historical WLAN of using, and with this information reporting to the User Information Database unit.
18. an access network selection system is characterized in that, comprising:
The network selection policy unit, the network selection strategy request that is used for the Access Network information of carrying of reception subscriber equipment initiation, according to described network selection strategy request, obtain Access Network state information and user configuration information, and formulate the network selection policy information according to described Access Network state information and user configuration information, and described network selection policy information is handed down to subscriber equipment;
Subscriber equipment is used for surveying near self Access Network information, carries described Access Network information and initiates the network selection strategy request to the network selection policy unit, receives described network selection policy unit according to the network selection policy information of Access Network state information and user configuration information formulation.
19. system according to claim 18 is characterized in that, also comprises:
The network state acquiring unit is used for the regularly related load information of each network element of collection;
The user profile library unit is for the service set of storing user subscription and user equipment to report.
20. system according to claim 18 is characterized in that, described network selection policy unit comprises:
The request receiving module is for the network selection strategy request of the Access Network information of carrying that receives the subscriber equipment initiation;
The information acquisition module is used for according to described network selection strategy request, obtains Access Network state information and user configuration information;
The policy development module is used for formulating the network selection policy information according to described Access Network state information and user configuration information, and described network selection policy information is handed down to subscriber equipment;
Described information acquisition module comprises:
First obtains submodule, is used for the load information by the insertion point of radio local network of network management system or signalling analysis system acquisition MAC Address sign;
Second obtains submodule, is used for the load information by the Cellular Networks residential quarter of network management system or signalling analysis system queries Cell_Id sign;
The 3rd obtains submodule, is used for obtaining accessible service set tabulation from the user profile library unit.
21. system according to claim 20 is characterized in that, described policy development module comprises:
The access judge module is used for WLAN state and the residing Cellular Networks subzone network of the described subscriber equipment state of judging that described subscriber equipment self is neighbouring;
The access suggestion module is used for formulating the network selection Policy Info: according to described WLAN state and Cellular Networks subzone network state
When near the access load that has a plurality of available insertion point of radio local networks and this access point the described subscriber equipment self was not high, then the high insertion point of radio local network access of priority was selected in suggestion;
WLAN (wireless local area network) access load height or signal accessible near described subscriber equipment self are not strong, and the residing Cellular Networks cell signal of described subscriber equipment of while is strong and the access load is low, then suggestion access Cellular Networks;
When the residing Cellular Networks cell signal of subscriber equipment is strong but the access load is high, then advise the priority access WLAN.
22. system according to claim 20, it is characterized in that, the source of service set comprises the signatory and user equipment to report of user in the described service set tabulation, and the service set of user equipment to report is initiatively selected according to the user by subscriber equipment and the service set of the historical WLAN of using obtains.
23. system according to claim 18 is characterized in that, described subscriber equipment comprises:
The probe requests thereby module is used for surveying near self Access Network information, carries described Access Network information and initiates the network selection strategy request to the network selection policy unit;
The strategy receiver module is used for receiving described network selection policy unit according to the network selection policy information of Access Network state information and user configuration information formulation;
Described probe requests thereby module comprises:
The first detecting module is for detection of near the WLAN relevant information self;
The second detecting module is used for surveying near self Cellular Networks relevant information;
The information recording/module is used for recording user to the selection preference information of each Access Network;
Described WLAN relevant information comprises: service set information, mac address information, beacon frame information, signal quality information;
Described Cellular Networks relevant information comprises: the Cell_Id information of Cellular Networks, signal quality information.
24. system according to claim 23 is characterized in that, described subscriber equipment also comprises:
The sign acquisition module be used for to gather that the user initiatively selects and the information of the service set of the historical WLAN of using, and with this information reporting to the User Information Database unit.
Priority Applications (2)
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| CN201110302471.4A CN103037469B (en) | 2011-10-08 | 2011-10-08 | Access network selection method, subscriber equipment, system and network selection policy unit |
| PCT/CN2012/082486 WO2013049996A1 (en) | 2011-10-08 | 2012-09-29 | Method, user equipment (ue) and system for selecting accessing network and network selecting policy unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110302471.4A CN103037469B (en) | 2011-10-08 | 2011-10-08 | Access network selection method, subscriber equipment, system and network selection policy unit |
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| CN103037469B CN103037469B (en) | 2016-03-30 |
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| CN201110302471.4A Active CN103037469B (en) | 2011-10-08 | 2011-10-08 | Access network selection method, subscriber equipment, system and network selection policy unit |
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Also Published As
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| WO2013049996A1 (en) | 2013-04-11 |
| CN103037469B (en) | 2016-03-30 |
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