CN103037469B - Access network selection method, subscriber equipment, system and network selection policy unit - Google Patents
Access network selection method, subscriber equipment, system and network selection policy unit Download PDFInfo
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- CN103037469B CN103037469B CN201110302471.4A CN201110302471A CN103037469B CN 103037469 B CN103037469 B CN 103037469B CN 201110302471 A CN201110302471 A CN 201110302471A CN 103037469 B CN103037469 B CN 103037469B
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- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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Abstract
The invention discloses a kind of access network selection method, subscriber equipment, system and network selection policy unit, wherein, the method comprises: network selection policy unit receives the network selection strategy request of the Access Network information of carrying that subscriber equipment is initiated; Network selection policy unit, according to network selection strategy request, obtains Access Network state information and user configuration information; Network selection policy unit according to Access Network state information, and can formulate network selection policy information in conjunction with user configuration information, and network selection policy information is handed down to subscriber equipment.Access network selection method of the present invention, subscriber equipment, system and network selection policy unit, network selection policy unit fully can know the Access Network information of UE present position; Does UE detect WLAN? the MAC Address of AP, and report network selection policy unit; The ssid list that UE will often access, with regular hour periodic report to User Information Database unit; The Access Network information that network selection policy unit provides according to UE, for user selects optimum WLAN to access AP.
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 hot spot, the same area may be covered jointly by multiple WLAN access point and cellular basestation, and the service condition of summation network that needs according to user is selected to become more and more important for user carries out reasonable network.At present, there is following defect in the use of existing network and existing network selection technical scheme:
1) UE (UserEquipment, subscriber equipment) scan WLAN (WirelessLocalAreaNetworks, WLAN) AP (AccessPoint, access point) information, by user according to available SSID (ServiceSetIdentifier, service set) select WLAN to access, need user to participate in complicated operation, have impact on the experience of user.
2) nature static of network selection strategy, causes the unbalanced of Web vector graphic; No matter be the actual service condition that strategy that terminal static configuration or network provide all does not consider WLAN and Cellular Networks; Such as, even if current WLAN is congested, also corresponding Developing Tactics cannot be carried out.
3) network lacks corresponding information, and the amount of information of the Access Network information of current terminal to report is not enough, such as, and the SSID of neighbouring WLAN; Network selection policy unit lacks the mechanism with other network element exchange message, cannot carry out the selection of network according to the Internet Use information of the information of end side and network side.
4) corresponding method of WLAN distribution accurately and Cellular Networks access is lacked, under a Cellular Networks MPS process, multiple, to belong to different owner WLAN accesses may be had, make network be 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 solved is the network environment how the network selection policy unit of network side accurately can know residing for UE, comprise the applicable of the cellular network at the current place of UE and other non-3 GPP access network (as WLAN, WiMAX etc.) at place, the signal strength signal intensity etc. of each access point.
Application number is a kind of method that the Chinese invention patent application of 200910090433.X proposes that UE is linked into core net by WLAN Access Network.First UE accesses EPC (packet-based core networks), with ANDSF (AccessNetworkDiscoveryandSelectionFunction, access network discovery and selection function) carry out mutual (carrying self positional information and ability information), ANDSF returns WLAN Access Network information (the wireless core network information that WLAN Access Network can be accessed by and the wlan network that UE current location exists), and, to UE, then UE sets up the connection with WLAN Access Network; When carrying out certification, WLAN Access Network sends EAP (extensible authentication protocol) request to UE, UE, according to the WLAN Access Network information obtained and the access capability of self, selects a wireless core network and corresponding identity is carried in EAP reply message to return to 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 Access Network attribute information from AAA (authentication authorized charging server), and select one or more Access Network according to the ability of terminal (protocol type of support, the Access Network of trusting the need of access) and Access Network attribute information (agreement that Access Network is supported, the trusting relationship of Access Network) and Access Network information is sent to terminal, terminal is according to the Access Network Information Selection Access Network received and access.
Application number be 201010117475.0 Chinese invention patent application refer to a kind of terminal access AP system of selection.The information (comprising information strength, perceived noisiness, transmitted power) of the same UE that its multiple AP controlled report is collected by Radio Access Controller AC, for certain particular UE, for it reselects AP, and be the special MAC (MediaAccessControl of this AP dynamic assignment, medium access control) address, for communicating with between UE.
Realizing in process of the present invention, inventor finds that in prior art, at least there are the following problems:
For existing ANDSF scheme, UE can carry the information such as the positional information of oneself and the access network type of preference in the solicited message of ANDSF, current UE can provide the granularity of positional information to be the ID (Cell_Id) of cellular cell, ANDSF finds Access Network information available near UE according to the positional information that UE provides, in ANDSF, existence database gives the mapping relations between cellular network and non-3 GPP access network (as WLAN), as shown in table 1:
Table 1
But because the coverage of Cellular Networks and non-3 GPP access network (as WLAN) differs greatly, deployment scenario is complicated, above-mentioned mapping relations only embody a kind of deployment relation roughly, and under the current position of UE can not be embodied, specifically have the signal strength signal intensity of which WLAN Access Network and each WLAN Access Network, thus network selection policies can not be provided to UE targetedly.
Above-mentioned application number is the patent application of 200910090433.X, position and ability information that mutual information only includes UE is carried out between UE and ANDSF, the wireless core network information that ANDSF provides WLAN Access Network can be accessed by UE and the wlan network that UE current location exists, UE only selects suitable Access Network according to these information, do not consider Access Network loading condition, some AP overload may be caused, affect overall performance of network.
Above-mentioned application number is the patent application of 200910179815.X, UE before switching can be solved cannot obtain the attribute information of Access Network and affect the problem of terminal switching efficiency and business continuance, and the Access Network attribute information that program UE can obtain comprises the agreement of Access Network support, the trusting relationship etc. of Access Network, but do not consider the loading condition of Access Network.
Above-mentioned application number is the patent application of 201010117475.0, the program compared with prior art, decided in its sole discretion the scheme accessing which AP by terminal scanning AP, enhance the access AP of control dynamics network side AC selects to(for) UE, AP load balancing to a certain extent can be realized, but the program only has when moving when between each AP under same AC controls of UE effective, can not realize many AC control under AP between load balancing.
Summary of the invention
The object of the invention is for the not good defect of access network selection access effect in prior art, to propose a kind of access network selection method, subscriber equipment, system and network selection policy unit, to strengthen the technique effect of Access Network core network access.
For achieving the above object, according to an aspect of the present invention, a kind of access network selection method is provided.
According to the access network selection method of the embodiment of the present invention, comprising:
Network selection policy unit receives the network selection strategy request of the Access Network information of carrying that subscriber equipment is initiated;
Network selection policy unit, according to network selection strategy request, obtains Access Network state information;
Network selection policy unit formulates network selection policy information according to Access Network state information, and network selection policy information is handed down to subscriber equipment.
In technique scheme, method also comprises:
Network selection policy unit, according to network selection strategy request, obtains user configuration information;
Network selection policy unit formulates network selection policy information according to Access Network state information and user configuration information, and network selection policy information is handed down to subscriber equipment.
In technique scheme, the step that network selection policy unit obtains Access Network state information comprises:
The load information of the insertion point of radio local network of MAC Address mark is obtained by network management system or signalling analysis system; Or,
The load information of the Cellular Networks community identified by network management system or signalling analysis system queries Cell_Id.
In technique scheme, the step that network selection policy unit obtains user configuration information comprises: from user profile library unit, obtain accessible service set list.
In technique scheme, the step that network selection policy unit formulates network selection policy information comprises:
Near subscriber equipment self, there are multiple available insertion point of radio local networks and the access load of this access point is not high time, then suggestion select priority high insertion point of radio local network access;
WLAN (wireless local area network) access load accessible near subscriber equipment self is high or signal is not strong, and the Cellular Networks cell signal simultaneously residing for subscriber equipment is strong and access load is low, then suggestion access Cellular Networks;
When the Cellular Networks cell signal residing for subscriber equipment is strong but access load is high, then advise priority access WLAN.
In technique scheme, in service set list, the source of service set comprises the signing and user equipment to report of user, and the service set of user equipment to report initiatively to be selected according to user by subscriber equipment and the service set of WLAN of history use obtains.
For achieving the above object, according to an aspect of the present invention, a kind of access network selection method is provided.
According to the access network selection method of the embodiment of the present invention, comprising:
Access Network information near subscriber equipment detection self, carries Access Network information and initiates network selection strategy request to network selection policy unit;
Subscriber equipment receives the network selection policy information that network selection policy unit is formulated according to Access Network state information and user configuration information.
In technique scheme, the step of the Access Network information near subscriber equipment detection self comprises:
Subscriber equipment detects the WLAN relevant information near self;
Cellular Networks relevant information near subscriber equipment detection self;
Subscriber equipment recording user is to the selection preference information of each Access Network;
WLAN relevant information comprises: service set information, mac address information, beacon frame information, signal quality information;
Cellular Networks relevant information comprises: the Cell_Id information of Cellular Networks, signal quality information.
In technique scheme, method also comprises: the information gathering the service set of the WLAN that user initiatively selects and history uses, and by this information reporting to User Information Database unit.
For achieving the above object, according to another aspect of the present invention, a kind of network selection policy unit is provided.
According to the network selection policy unit of the embodiment of the present invention, comprising:
Request receiving module, for receiving the network selection strategy request of the Access Network information of carrying that subscriber equipment is initiated;
Information acquisition module, for according to network selection strategy request, obtains Access Network state information and user configuration information;
Policy development module, for formulating network selection policy information according to described Access Network state information and user configuration information, and is handed down to subscriber equipment by network selection policy information.
In technique scheme, information acquisition module comprises:
First obtains submodule, for being obtained the load information of the insertion point of radio local network of MAC Address mark by network management system or signalling analysis system;
Second obtains submodule, for the load information of the Cellular Networks community by network management system or signalling analysis system queries Cell_Id mark.
In technique scheme, information acquisition module also comprises:
3rd obtains submodule, for obtaining accessible service set list from user profile library unit.
In technique scheme, policy development module comprises:
Access judge module, for judging the WLAN state near subscriber equipment self and the Cellular Networks subzone network state residing for subscriber equipment;
Access suggestion module, for formulating network selection Policy Info: according to WLAN state and Cellular Networks subzone network state
Near subscriber equipment self, there are multiple available insertion point of radio local networks and the access load of this access point is not high time, then suggestion select priority high insertion point of radio local network access;
WLAN (wireless local area network) access load accessible near subscriber equipment self is high or signal is not strong, and the Cellular Networks cell signal simultaneously residing for subscriber equipment is strong and access load is low, then suggestion access Cellular Networks;
When the Cellular Networks cell signal residing for subscriber equipment is strong but access load is high, then advise priority access WLAN.
In technique scheme, in service set list, the source of service set comprises the signing and user equipment to report of user, and the service set of user equipment to report initiatively to be selected according to user by subscriber equipment and the service set of WLAN of history use obtains.
For achieving the above object, according to another aspect of the present invention, a kind of subscriber equipment is provided.
According to the subscriber equipment of the embodiment of the present invention, comprising:
Probe requests thereby module, for detecting the Access Network information near self, carrying Access Network information and initiating network selection strategy request to network selection policy unit;
Policy receipt module, for receiving the network selection policy information that network selection policy unit is formulated according to Access Network state information and user configuration information.
In technique scheme, probe requests thereby module comprises:
First detecting module, for detecting the WLAN relevant information near self;
Second detecting module, for detecting the Cellular Networks relevant information near self;
Information logging modle, for the selection preference information of recording user to each Access Network;
WLAN relevant information comprises: service set information, mac address information, beacon frame information, signal quality information;
Cellular Networks relevant information comprises: the Cell_Id information of Cellular Networks, signal quality information.
In technique scheme, subscriber equipment also comprises:
Mark acquisition module, for gathering the information of the service set of the WLAN that user initiatively selects and history uses, and by this information reporting to User Information Database unit.
For achieving the above object, according to another aspect of the present invention, a kind of access network selection system is provided.
According to the access network selection system of the embodiment of the present invention, comprising:
Network selection policy unit, for receiving the network selection strategy request of the Access Network information of carrying that subscriber equipment is initiated, according to network selection strategy request, obtain Access Network state information and user configuration information, and formulate network selection policy information according to Access Network state information and user configuration information, and network selection policy information is handed down to subscriber equipment;
Subscriber equipment, for detecting the Access Network information near self, carrying described Access Network information and initiating network selection strategy request to network selection policy unit, receive the network selection policy information that network selection policy unit is formulated according to Access Network state information and user configuration information.
In technique scheme, system also comprises:
Network state acquiring unit, for the related load information of each network element of taken at regular intervals;
User profile library unit, for the service set of storing user subscription and user equipment to report.
In technique scheme, network selection policy unit comprises:
Request receiving module, for receiving the network selection strategy request of the Access Network information of carrying that subscriber equipment is initiated;
Information acquisition module, for according to network selection strategy request, obtains Access Network state information and user configuration information;
Policy development module, for formulating network selection policy information according to Access Network state information and user configuration information, and is handed down to subscriber equipment by network selection policy information;
Described information acquisition module comprises:
First obtains submodule, for being obtained the load information of the insertion point of radio local network of MAC Address mark by network management system or signalling analysis system;
Second obtains submodule, for the load information of the Cellular Networks community by network management system or signalling analysis system queries Cell_Id mark;
3rd obtains submodule, for obtaining accessible service set list from user profile library unit.
In technique scheme, policy development module comprises:
Access judge module, for judging the WLAN state near subscriber equipment self and the Cellular Networks subzone network state residing for subscriber equipment;
Access suggestion module, for formulating network selection Policy Info: according to WLAN state and Cellular Networks subzone network state
Near subscriber equipment self, there are multiple available insertion point of radio local networks and the access load of this access point is not high time, then suggestion select priority high insertion point of radio local network access;
WLAN (wireless local area network) access load accessible near subscriber equipment self is high or signal is not strong, and the Cellular Networks cell signal simultaneously residing for subscriber equipment is strong and access load is low, then suggestion access Cellular Networks;
When the Cellular Networks cell signal residing for subscriber equipment is strong but access load is high, then advise priority access WLAN.
In technique scheme, in service set list, the source of service set comprises the signing and user equipment to report of user, and the service set of user equipment to report initiatively to be selected according to user by subscriber equipment and the service set of WLAN of history use obtains.
In technique scheme, subscriber equipment comprises:
Probe requests thereby module, for detecting the Access Network information near self, carrying Access Network information and initiating network selection strategy request to network selection policy unit;
Policy receipt module, for receiving the network selection policy information that network selection policy unit is formulated according to Access Network state information and user configuration information;
Probe requests thereby module comprises:
First detecting module, for detecting the WLAN relevant information near self;
Second detecting module, for detecting the Cellular Networks relevant information near self;
Information logging modle, for the selection preference information of recording user to each Access Network;
WLAN relevant information comprises: service set information, mac address information, beacon frame information, signal quality information;
Cellular Networks relevant information comprises: the Cell_Id information of Cellular Networks, signal quality information.
In technique scheme, subscriber equipment also comprises:
Mark acquisition module, for gathering the information of the service set of the WLAN that user initiatively selects and history uses, and by this information reporting to 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 multiple Access Network information to network selection policy unit, as the MAC Address, signal strength signal intensity, beacon frame etc. of UE positional information (Cell_Id), the corresponding AP of WLANSSID, thus make network selection policy unit fully can know the Access Network information of UE present position; The expansion of UE fulfillment capability, detects the MAC Address of WLANAP under certain SSID, and reports network selection policy unit, as ANDSF etc.; UE by initiatively selecting according to user and the ssid list of WLAN of history use, with regular hour periodic report to the User Information Database unit in core net; The Access Network information that network selection policy unit provides according to UE, as the MAC Address of AP, the Cell_Id of Cellular Networks obtain the corresponding state information of Access Network, for user selects optimum WLAN to access AP, as the AP access selecting load lighter according to the number of users that the AP of WLAN connects or enlivens.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, together with embodiments of the present invention for 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 present invention access network selection embodiment of the method;
Fig. 2 is the structural representation according to embodiment of the present 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 is only for instruction and explanation of the present invention, is not intended to limit the present invention.
embodiment of the method
According to the embodiment of the present invention, provide a kind of access network selection method, Fig. 1 is the flow chart according to embodiment of the present invention access network selection embodiment of the method.As shown in Figure 1, the present embodiment comprises:
Step S102:UE detects the Access Network information near self: UE detects the relevant information of the WLAN near UE, as indexs of correlation such as SSID, MAC Address, beacon frame, signal qualitys; UE detects the Cellular Networks information near UE, as the Cell_Id of Cellular Networks, and the indexs of correlation such as signal quality;
UE recording user is to the selection preference of each Access Network and report User Information Database unit, SSID as accessible in UE and the list of access frequency thereof;
Step S104:UE carries Access Network information and initiates network selection strategy request to network selection policy unit: UE initiates request to network selection policy unit, the Access Network relevant information detected is carried and sends to network selection policy unit in the message, send by existing S14 interface (S14 interface is the logic interfacing between UE and network selection policy unit), or pass through the mode etc. of note, the information of carrying includes, but are not limited to following content:
(1) SSID of WLAN Access Network that the signal that detects of UE is stronger and the MAC Address of corresponding AP and corresponding information, such as, as signal strength signal intensity etc., if any multiple AP, can report the information of several AP that signal strength signal intensity is the strongest;
(2) information indicated by beacon frame, comprise this WLAN whether free, can the information such as Internet be accessed;
(3) the Cellular Networks cell ID Cell_Id at UE place;
It should be noted that, access network selection method and apparatus of the present invention, its core processing unit-network selection policy unit is in the core net in mobile radio communication, and it is connected with UE by various Access Network (comprising Cellular Networks and non-3 GPP access network, as WLAN, WiMAX etc.);
Step S106: network selection policy unit obtains Access Network state information and user configuration information: network selection policy unit is after the request receiving UE, by network state acquiring unit inquiry Access Network load information, as the MAC Address that provides according to terminal to obtain the load information of corresponding WLANAP from network management system, as service traffics, current access or active users etc., by the load information of the Cellular Networks community of the inquiry such as network management system, signalling analysis system Cell_Id mark;
Network selection policy unit obtains user related information from User Information Database unit, as accessible ssid list;
Step S108: network selection policy unit formulates according to Access Network state information and user configuration information the Access Network information that network selection Policy Info: network selection policy unit allows according to the loading condition of each Access Network obtained, user to access, signal strength signal intensity, the user of each Access Network provided in conjunction with UE self use the information such as preference, formulate corresponding access network selection strategy; As:
(1) accessible near UE WLAN accesses that load is higher or signal is strong not, then the tactful form formulated as: do not access WLAN;
(2) near UE self, have multiple available WLANAP, it with when ensureing preferably, according to the priority of SSID in ssid list, can determine that access strategy is to the service quality of user:
Because " priority of the AP of access SSID=SSIDl, APMAC=MAC1 is 1; The priority of the AP of access SSID=SSID2, APMAC=MAC2 is 2 ", therefore select the AP that access priority is high, namely access SSID=SSID1, the AP of APMAC=MAC1;
(3) when the Cellular Networks cell signal residing for UE is very strong but load serious, then the tactful form formulated is as priority access WLAN, and the priority of access Cellular Networks reduces;
(4) accessible near subscriber equipment self WLAN (wireless local area network) access load is high or signal is not strong, and the Cellular Networks cell signal simultaneously residing for subscriber equipment is strong and access load is low, then suggestion access Cellular Networks;
Step S110: network selection policy information is handed down to UE by network selection policy unit: the mode of transmission can be connected by IP, as existing S14 interface, or the mode of note connects; UE carries out network selection according to this network selection policy information, if network insertion failure, can inform that user carries out manual network selection.
Present invention also offers another kind of embodiment, describe the acquisition process of Access Network state information in step S106 in above-mentioned Fig. 1 embodiment in detail:
As shown in Figure 2, the network state memory cell that can store each Access Network load information is connected with network selection policy unit, the related load information of each network element of network state memory cell meeting taken at regular intervals, 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 community that network state memory cell returns to network selection policy unit is as shown in table 2:
Table 2
The load information for specific AP that network state memory cell returns to network selection policy unit, as shown in table 3:
Table 3
It should be noted 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 the SSID that network signals UE can be accessed by, the SSID that the another kind of user of being also successfully accessed from main separation.
UE safeguards ssid list according to the use characteristic of user, and this list can arrange its priority according to the usage frequency of SSID in ssid list, and user also can manage this list manually or automatically, and UE will report its ssid list with some cycles.
The User Information Database unit be connected with network selection policy unit, be in together in core net with network selection policy unit, network state acquiring unit, store the ssid list that user allows to access in User Information Database unit, the source of this ssid list has two: user is signing to be reported with user side.
Access network selection method of the present invention, UE reports multiple Access Network information to network selection policy unit, as the MAC Address, signal strength signal intensity, beacon frame etc. of UE positional information (Cell_Id), the corresponding AP of WLANSSID, thus make network selection policy unit fully can know the Access Network information of UE present position; The expansion of UE fulfillment capability, detects the MAC Address of WLANAP under certain SSID, and reports network selection policy unit, as ANDSF etc.; UE by initiatively selecting according to user and the ssid list of WLAN of history use, with regular hour periodic report to the User Information Database unit in core net; The Access Network information that network selection policy unit provides according to UE, as the MAC Address of AP, the Cell_Id of Cellular Networks obtain the corresponding state information of Access Network, for user selects optimum WLAN to access AP, as the AP access selecting load lighter according to the number of users that the AP of WLAN connects or enlivens.
device embodiment
According to the embodiment of the present invention, provide a kind of network selection policy unit.This network selection policy unit comprises:
Request receiving module, for receiving the network selection strategy request of the Access Network information of carrying that subscriber equipment is initiated;
Information acquisition module, for according to network selection strategy request, obtains Access Network state information and user configuration information;
Policy development module, for formulating network selection policy information according to Access Network state information and user configuration information, and is handed down to subscriber equipment by network selection policy information.
Information acquisition module comprises:
First obtains submodule, for being obtained the load information of the insertion point of radio local network of MAC Address mark by network management system or signalling analysis system;
Second obtains submodule, for the load information of the Cellular Networks community by network management system or signalling analysis system queries Cell_Id mark.
Information acquisition module also comprises:
3rd obtains submodule, for obtaining accessible service set list from user profile library unit.
Policy development module comprises:
Access judge module, for judging the WLAN state near subscriber equipment self and the Cellular Networks subzone network state residing for subscriber equipment;
Access suggestion module, for formulating network selection Policy Info: according to WLAN state and Cellular Networks subzone network state
Near subscriber equipment self, there are multiple available insertion point of radio local networks and the access load of this access point is not high time, then suggestion select priority high insertion point of radio local network access;
WLAN (wireless local area network) access load accessible near subscriber equipment self is high or signal is not strong, and the Cellular Networks cell signal simultaneously residing for subscriber equipment is strong and access load is low, then suggestion access Cellular Networks;
When the Cellular Networks cell signal residing for subscriber equipment is strong but access load is high, then advise priority access WLAN.
In service set list, the source of service set comprises the signing and user equipment to report of user, and the service set of user equipment to report initiatively to be selected according to user by subscriber equipment and the service set of WLAN of history use obtains.
According to the embodiment of the present invention, provide a kind of subscriber equipment.This subscriber equipment (UserEquipment, i.e. UE) comprising:
Probe requests thereby module, for detecting the Access Network information near self, carrying Access Network information and initiating network selection strategy request to network selection policy unit;
Policy receipt module, for receiving the network selection policy information that network selection policy unit is formulated according to Access Network state information and user configuration information.
Probe requests thereby module comprises:
First detecting module, for detecting the WLAN relevant information near self;
Second detecting module, for detecting the Cellular Networks relevant information near self;
Information logging modle, for the selection preference information of recording user to each Access Network;
Cellular Networks relevant information comprises: the Cell_Id information of Cellular Networks, signal quality information;
WLAN relevant information comprises: service set information, mac address information, beacon frame information, signal quality information.
Above-mentioned subscriber equipment also comprises:
Mark acquisition module, for gathering the information of the service set of the WLAN that user initiatively selects and history uses, and by this information reporting to User Information Database unit.
Network selection policy unit of the present invention and UE, UE reports multiple Access Network information to network selection policy unit, as the MAC Address, signal strength signal intensity, beacon frame etc. of UE positional information (Cell_Id), the corresponding AP of WLANSSID, thus make network selection policy unit fully can know the Access Network information of UE present position; The expansion of UE fulfillment capability, detects the MAC Address of WLANAP under certain SSID, and reports network selection policy unit, as ANDSF etc.; UE by initiatively selecting according to user and the ssid list of WLAN of history use, with regular hour periodic report to the User Information Database unit in core net; The Access Network information that network selection policy unit provides according to UE, as the MAC Address of AP, the Cell_Id of Cellular Networks obtain the corresponding state information of Access Network, for user selects optimum WLAN to access AP, as the AP access selecting load lighter according to the number of users that the AP of WLAN connects or enlivens.
system embodiment
According to the embodiment of the present invention, provide a kind of access network selection system.This access network selection system comprises:
Network selection policy unit, for receiving the network selection strategy request of the Access Network information of carrying that subscriber equipment is initiated, according to network selection strategy request, obtain Access Network state information and user configuration information, and formulate network selection policy information according to Access Network state information and user configuration information, and network selection policy information is handed down to subscriber equipment;
Subscriber equipment (UserEquipment, i.e. UE), for detecting the Access Network information near self, carry Access Network information and initiate network selection strategy request to network selection policy unit, receive the network selection policy information that network selection policy unit is formulated according to Access Network state information and user configuration information.
Preferably, above-mentioned access network selection system also comprises:
User profile library unit, for the service set of storing user subscription and user equipment to report;
Network state acquiring unit, for the related load information of each network element of taken at regular intervals.
Network selection policy unit comprises:
Request receiving module, for receiving the network selection strategy request of the Access Network information of carrying that subscriber equipment is initiated;
Information acquisition module, for according to network selection strategy request, obtains Access Network state information and user configuration information;
Policy development module, for formulating network selection policy information according to Access Network state information and user configuration information, and is handed down to subscriber equipment by network selection policy information;
Information acquisition module comprises:
First obtains submodule, for being obtained the load information of the insertion point of radio local network of MAC Address mark by network management system or signalling analysis system;
Second obtains submodule, for the load information of the Cellular Networks community by network management system or signalling analysis system queries Cell_Id mark;
3rd obtains submodule, for obtaining accessible service set list from user profile library unit.
Policy development module comprises:
Access judge module, for judging the WLAN state near subscriber equipment self and the Cellular Networks subzone network state residing for subscriber equipment;
Access suggestion module, for formulating network selection Policy Info: according to WLAN state and Cellular Networks subzone network state
Near subscriber equipment self, there are multiple available insertion point of radio local networks and the access load of this access point is not high time, then suggestion select priority high insertion point of radio local network access;
WLAN (wireless local area network) access load accessible near subscriber equipment self is high or signal is not strong, and the Cellular Networks cell signal simultaneously residing for subscriber equipment is strong and access load is low, then suggestion access Cellular Networks;
When the Cellular Networks cell signal residing for subscriber equipment is strong but access load is high, then advise priority access WLAN.
In service set list, the source of service set comprises the signing and user equipment to report of user, and the service set of user equipment to report initiatively to be selected according to user by subscriber equipment and the service set of WLAN of history use obtains.
Subscriber equipment comprises:
Probe requests thereby module, for detecting the Access Network information near self, carrying Access Network information and initiating network selection strategy request to network selection policy unit;
Policy receipt module, for receiving the network selection policy information that network selection policy unit is formulated according to Access Network state information and user configuration information;
Probe requests thereby module comprises:
First detecting module, for detecting the WLAN relevant information near self;
Second detecting module, for detecting the Cellular Networks relevant information near self;
Information logging modle, for the selection preference information of recording user to each Access Network;
Cellular Networks relevant information comprises: the Cell_Id information of Cellular Networks, signal quality information;
WLAN relevant information comprises: service set information, mac address information, beacon frame information, signal quality information.
Subscriber equipment also comprises:
Mark acquisition module, for gathering the information of the service set of the WLAN that user initiatively selects and history uses, and by this information reporting to User Information Database unit.
Access network selection system of the present invention, UE reports multiple Access Network information to network selection policy unit, as the MAC Address, signal strength signal intensity, beacon frame etc. of UE positional information (Cell_Id), the corresponding AP of WLANSSID, thus make network selection policy unit fully can know the Access Network information of UE present position; The expansion of UE fulfillment capability, detects the MAC Address of WLANAP under certain SSID, and reports network selection policy unit, as ANDSF etc.; UE by initiatively selecting according to user and the ssid list of WLAN of history use, with regular hour periodic report to the User Information Database unit in core net; The Access Network information that network selection policy unit provides according to UE, as the MAC Address of AP, the Cell_Id of Cellular Networks obtain the corresponding state information of Access Network, for user selects optimum WLAN to access AP, as the AP access selecting load lighter according to the number of users that the AP of WLAN connects or enlivens.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (23)
1. an access network selection method, is characterized in that, comprising:
Network selection policy unit receives the network selection strategy request of the Access Network information of carrying that subscriber equipment is initiated, described Access Network information comprises: the Cell_Id of the SSID of the WLAN near subscriber equipment, MAC Address, beacon frame, signal quality information and Cellular Networks, signal quality information;
Described network selection policy unit, according to described network selection strategy request, obtains Access Network state information;
Described network selection policy unit is according to described network selection strategy request, and obtain user configuration information, described user configuration information comprises: accessible ssid list, user use preference information;
Described network selection policy unit formulates 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.
2. method according to claim 1, is characterized in that, the step that network selection policy unit obtains Access Network state information comprises:
The load information of the insertion point of radio local network of MAC Address mark is obtained by network management system or signalling analysis system; Or,
The load information of the Cellular Networks community identified by network management system or signalling analysis system queries Cell_Id.
3. method according to claim 1, is characterized in that, the step that network selection policy unit obtains user configuration information comprises: from user profile library unit, obtain accessible service set list.
4. according to the method in claim 2 or 3, it is characterized in that, the step that network selection policy unit formulates network selection policy information comprises:
Near described subscriber equipment self, there are multiple available insertion point of radio local networks and the access load of this access point is not high time, then suggestion select priority high insertion point of radio local network access;
WLAN (wireless local area network) access load accessible near described subscriber equipment self is high or signal is not strong, and the Cellular Networks cell signal simultaneously residing for described subscriber equipment is strong and access load is low, then suggestion access Cellular Networks;
When the Cellular Networks cell signal residing for subscriber equipment is strong but access load is high, then advise priority access WLAN.
5. method according to claim 3, it is characterized in that, in described service set list, the source of service set comprises the signing and user equipment to report of user, and the service set of user equipment to report initiatively to be selected according to user by subscriber equipment and the service set of WLAN of history use obtains.
6. an access network selection method, is characterized in that, comprising:
Access Network information near subscriber equipment detection self, carry described Access Network information and initiate network selection strategy request to network selection policy unit, described Access Network information comprises: the Cell_Id of the SSID of the WLAN near subscriber equipment, MAC Address, beacon frame, signal quality information and Cellular Networks, signal quality information;
Described subscriber equipment receives the network selection policy information that described network selection policy unit is formulated according to Access Network state information and user configuration information, and described user configuration information comprises: accessible ssid list, user use preference information.
7. method according to claim 6, is characterized in that, the step of the Access Network information near described subscriber equipment detection self comprises:
Described subscriber equipment detects the WLAN relevant information near self;
Cellular Networks relevant information near described subscriber equipment detection 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.
8. method according to claim 6, is characterized in that, also comprises:
Gather the information of the service set of the WLAN that user initiatively selects and history uses, and by this information reporting to User Information Database unit.
9. a network selection policy unit, is characterized in that, comprising:
Request receiving module, for receiving the network selection strategy request of the Access Network information of carrying that subscriber equipment is initiated, described Access Network information comprises: the Cell_Id of the SSID of the WLAN near subscriber equipment, MAC Address, beacon frame, signal quality information and Cellular Networks, signal quality information;
Information acquisition module, for according to described network selection strategy request, obtains Access Network state information and user configuration information;
Policy development module, for formulating 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 user configuration information comprises: accessible ssid list, user use preference information.
10. network selection policy unit according to claim 9, is characterized in that, described information acquisition module comprises:
First obtains submodule, for being obtained the load information of the insertion point of radio local network of MAC Address mark by network management system or signalling analysis system;
Second obtains submodule, for the load information of the Cellular Networks community by network management system or signalling analysis system queries Cell_Id mark.
11. network selection policy unit according to claim 9, it is characterized in that, described information acquisition module also comprises:
3rd obtains submodule, for obtaining accessible service set list from user profile library unit.
12. network selection policy unit according to claim 11, is characterized in that, described policy development module comprises:
Access judge module, for judging the WLAN state near described subscriber equipment self and the Cellular Networks subzone network state residing for described subscriber equipment;
Access suggestion module, for formulating network selection Policy Info: according to described WLAN state and Cellular Networks subzone network state
Near described subscriber equipment self, there are multiple available insertion point of radio local networks and the access load of this access point is not high time, then suggestion select priority high insertion point of radio local network access;
WLAN (wireless local area network) access load accessible near described subscriber equipment self is high or signal is not strong, and the Cellular Networks cell signal simultaneously residing for described subscriber equipment is strong and access load is low, then suggestion access Cellular Networks;
When the Cellular Networks cell signal residing for subscriber equipment is strong but access load is high, then advise priority access WLAN.
13. network selection policy unit according to claim 11, it is characterized in that, in described service set list, the source of service set comprises the signing and user equipment to report of user, and the service set of user equipment to report initiatively to be selected according to user by subscriber equipment and the service set of WLAN of history use obtains.
14. 1 kinds of subscriber equipmenies, is characterized in that, comprising:
Probe requests thereby module, for detecting the Access Network information near self, carry described Access Network information and initiate network selection strategy request to network selection policy unit, described Access Network information comprises: the Cell_Id of the SSID of the WLAN near subscriber equipment, MAC Address, beacon frame, signal quality information and Cellular Networks, signal quality information;
Policy receipt module, for receiving the network selection policy information that described network selection policy unit is formulated according to Access Network state information and user configuration information, described user configuration information comprises: accessible ssid list, user use preference information.
15. subscriber equipmenies according to claim 14, is characterized in that, described probe requests thereby module comprises:
First detecting module, for detecting the WLAN relevant information near self;
Second detecting module, for detecting the Cellular Networks relevant information near self;
Information logging modle, for the selection preference information of recording user to 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.
16. subscriber equipmenies according to claim 14, is characterized in that, also comprise:
Mark acquisition module, for gathering the information of the service set of the WLAN that user initiatively selects and history uses, and by this information reporting to User Information Database unit.
17. 1 kinds of access network selection systems, is characterized in that, comprising:
Network selection policy unit, for receiving the network selection strategy request of the Access Network information of carrying that subscriber equipment is initiated, according to described network selection strategy request, obtain Access Network state information and user configuration information, and formulate 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 Access Network information comprises: the SSID of the WLAN near subscriber equipment, MAC Address, beacon frame, the Cell_Id of signal quality information and Cellular Networks, signal quality information, described user configuration information comprises: accessible ssid list, user uses preference information,
Subscriber equipment, for detecting the Access Network information near self, carrying described Access Network information and initiating network selection strategy request to network selection policy unit, receive the network selection policy information that described network selection policy unit is formulated according to Access Network state information and user configuration information.
18. systems according to claim 17, is characterized in that, also comprise:
Network state acquiring unit, for the related load information of each network element of taken at regular intervals;
User profile library unit, for the service set of storing user subscription and user equipment to report.
19. systems according to claim 17, is characterized in that, described network selection policy unit comprises:
Request receiving module, for receiving the network selection strategy request of the Access Network information of carrying that subscriber equipment is initiated;
Information acquisition module, for according to described network selection strategy request, obtains Access Network state information and user configuration information;
Policy development module, for formulating network selection policy information according to described Access Network state information and user configuration information, and is handed down to subscriber equipment by described network selection policy information;
Described information acquisition module comprises:
First obtains submodule, for being obtained the load information of the insertion point of radio local network of MAC Address mark by network management system or signalling analysis system;
Second obtains submodule, for the load information of the Cellular Networks community by network management system or signalling analysis system queries Cell_Id mark;
3rd obtains submodule, for obtaining accessible service set list from user profile library unit.
20. systems according to claim 19, is characterized in that, described policy development module comprises:
Access judge module, for judging the WLAN state near described subscriber equipment self and the Cellular Networks subzone network state residing for described subscriber equipment;
Access suggestion module, for formulating network selection Policy Info: according to described WLAN state and Cellular Networks subzone network state
Near described subscriber equipment self, there are multiple available insertion point of radio local networks and the access load of this access point is not high time, then suggestion select priority high insertion point of radio local network access;
WLAN (wireless local area network) access load accessible near described subscriber equipment self is high or signal is not strong, and the Cellular Networks cell signal simultaneously residing for described subscriber equipment is strong and access load is low, then suggestion access Cellular Networks;
When the Cellular Networks cell signal residing for subscriber equipment is strong but access load is high, then advise priority access WLAN.
21. systems according to claim 19, it is characterized in that, in described service set list, the source of service set comprises the signing and user equipment to report of user, and the service set of user equipment to report initiatively to be selected according to user by subscriber equipment and the service set of WLAN of history use obtains.
22. systems according to claim 17, is characterized in that, described subscriber equipment comprises:
Probe requests thereby module, for detecting the Access Network information near self, carrying described Access Network information and initiating network selection strategy request to network selection policy unit;
Policy receipt module, for receiving the network selection policy information that described network selection policy unit is formulated according to Access Network state information and user configuration information;
Described probe requests thereby module comprises:
First detecting module, for detecting the WLAN relevant information near self;
Second detecting module, for detecting the Cellular Networks relevant information near self;
Information logging modle, for the selection preference information of recording user to 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.
23. systems according to claim 22, is characterized in that, described subscriber equipment also comprises:
Mark acquisition module, for gathering the information of the service set of the WLAN that user initiatively selects and history uses, and by this information reporting to User Information Database unit.
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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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| 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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