WO2014110819A1

WO2014110819A1 - Network access method and device

Info

Publication number: WO2014110819A1
Application number: PCT/CN2013/070734
Authority: WO
Inventors: 欧阳国威; 高晨亮; 金辉; 段小嫣
Original assignee: 华为终端有限公司
Priority date: 2013-01-18
Filing date: 2013-01-18
Publication date: 2014-07-24
Also published as: CN103503522A

Abstract

Embodiments of the present invention provide a network access method and device. The method comprises: selecting a wireless local area network (WLAN) to be accessed from WLANs of a home public land mobile network (HPLMN), WLANs of a visited public land mobile network (VPLMN), or the WLANs of the HPLMN and the VPLMN, according to information of the HPLMN and information of the VPLMN which are contained in an access network discovery and selection function (ANDSF) policy of the HPLMN; and accessing the selected WLAN. In the network access method and device provided by the embodiments of the present invention, the information of the HPLMN and the information of the VPLMN are contained in the ANDSF policy of the HPLMN, so that a UE is enabled to flexibly select a WLAN access network.

Description

Network access method and device

The present invention relates to the field of communications technologies, and in particular, to a network access method and apparatus. Background technique

The 3rd Generation Partnership (3GPP) is the most widely used wide-area mobile communication network. The Wireless Local Access Network (WLAN) is convenient for access. Local communication networks that are fast and relatively inexpensive are also widely deployed and used. The end user can choose to access the 3GPP network or WLAN network for voice, data, multimedia and other services. In order to implement the control or influence of the network on the terminal user's choice to access the 3GPP network or WLAN, the 3GPP standard specifies the Access Network Discover and Selection Function (ANDSF), and the ANDSF can be based on the user. The user equipment (User Equipment, hereinafter referred to as UE), the location of the user, and the user's network selection preference, and the interface S14 that communicates with the UE through the ANDSF, sends the network selection policy to the UE, and the UE provides the access according to the network selection policy. The network information selects the most suitable access network.

However, according to the existing network selection strategy, the UE can only select the WLAN access under the Public Land Mobile Network (hereinafter referred to as PLMN), so that the UE cannot flexibly select the WLAN access network. Summary of the invention

The embodiment of the invention provides a network access method and device, so as to solve the problem that the UE cannot flexibly select the WLAN access network.

In a first aspect, an embodiment of the present invention provides a network access method, including:

Information of the HPLMN included in the access network selection and selection function entity ANDSF policy and information of the visited public land mobile network VPLMN according to the access network belonging to the public land mobile network HPLMN, from the wireless local area network WLAN of the HPLMN, or from the In the WLAN of the VPLMN, or selecting the WLAN to be accessed from the WLANs of the HPLMN and the VPLMN;

Access the selected WLAN.

In a first possible implementation manner of the first aspect, the information of the HPLMN or the information of the VPLMN includes a first identifier, where the first identifier includes a public land mobile network PLMN identifier of the VPLMN.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the information about the HPLMN and the VPLMN included in an ANDSF policy of the HPLMN The information, the WLAN to be accessed from the WLAN of the HPLMN, or from the WLAN of the VPLMN, or the WLAN of the HPLMN and the VPLMN, includes:

The WLAN to be accessed is selected from the wireless local area network WLAN of the HPLMN, or from the WLAN of the VPLMN, or from the WLANs of the HPLMN and the VPLMN, according to the information priority contained in the ANDSF policy of the HPLMN.

With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the information about the information included in the ANDSF policy of the HPLMN, the wireless local area network from the HPLMN In the WLAN, the WLAN to be accessed is selected from the WLAN of the VPLMN, or from the WLANs of the HPLMN and the VPLMN, including:

If the policy of selecting the WLAN of the HPLMN and the policy of selecting the WLAN of the VPLMN are both in the ANDSF policy of the HPLMN, selecting the WLAN of the HPLMN;

If the policy of selecting the WLAN of the HPLMN is not valid in the ANDSF policy of the HPLMN, selecting a WLAN according to a priority of each VPLMN network in the VPLMN; if the ANDSF policy of the HPLMN is selecting a WLAN of the VPLMN If the policy does not take effect, then the WLAN of the HPLMN is selected.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the information about the HPLMN and the information of the VPLMN included in the ANDSF policy of the HPLMN are Selecting the desired access in the WLAN of the HPLMN, or from the WLAN of the VPLMN, or from the WLANs of the HPLMN and VPLMN Before the WLAN, it also includes:

Obtain a service set identifier SSID in the network coverage area;

Obtaining network information supported by each S SID by accessing a network query protocol ANQP message or a system broadcast message;

According to the network information supported by each SSID, it is determined whether the policy of selecting the WLAN of the HPLMN and the policy of selecting the WLAN of the VPLMN are valid in the ANDSF policy of the HPLMN.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the information about the HPLMN and the information of the VPLMN included in an ANDSF policy of the HPLMN The WLAN to be accessed is selected from the WLAN of the HPLMN, or from the WLAN of the VPLMN, or from the WLANs of the HPLMN and the VPLMN, specifically:

If the second identifier is not included in the ANDSF policy of the HPLMN, according to the information of the HPLMN and the information of the VPLMN included in the ANDSF policy of the HPLMN, from the WLAN of the HPLMN, or from the WLAN of the VPLMN, Or selecting a WLAN to be accessed from the WLANs of the HPLMN and the VPLMN;

If the second identifier is included in the ANDSF policy of the HPLMN, the WLAN under the first PLMN is selected according to the second identifier, where the second identifier is used to indicate that the WLAN under the first PLMN is selected, where the first The PLMN is a PLMN that has been registered through the 3GPP access network.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the information about the HPLMN and the information of the VPLMN included in an ANDSF policy of the HPLMN The WLAN to be accessed is selected from the WLAN of the HPLMN, or from the WLAN of the VPLMN, or from the WLANs of the HPLMN and the VPLMN, specifically:

If the third identifier is not included in the ANDSF policy of the HPLMN, according to the information of the HPLMN and the information of the VPLMN included in the ANDSF policy of the HPLMN, from the WLAN of the HPLMN, or from the WLAN of the VPLMN, Or selecting a WLAN to be accessed from the WLANs of the HPLMN and the VPLMN;

If the third identifier is included in the ANDSF policy of the HPLMN, the third identifier is used to indicate that the ANDSF policy further includes network information set by a user, according to the The third identifier is used to select a WLAN set by the user, and the third identifier is used to indicate that the ANDSF policy further includes network information set by the user.

The method of any one of the first aspect, wherein the information of the VPLMN further includes network offload capability information, in the seventh possible implementation manner of the first aspect, At least one of type information of the WLAN network, policy effective location information, and policy effective time information.

The method of any one of the first aspect, wherein the information of the HPLMN further includes the HPLMN in the eighth possible implementation manner of the first aspect, WLAN information, the information of the VPLMN further including WLAN information under the VPLMN, and then selecting from a WLAN of the HPLMN, or from a WLAN of the VPLMN, or from a WLAN of the HPLMN and the VPLMN The WLAN to be accessed, including:

Selecting an SSID from the service set identifier SSID included in the WLAN information of the selected network; or selecting an SSID that matches the Realm according to the domain Realm included in the WLAN information; or, according to the WLAN information The organization included in the unique identifier OUI, select the SSID under the OUI;

The accessing the WLAN of the selected network includes:

Access the WLAN corresponding to the selected SSID.

In conjunction with the method of any of the first aspect to the eighth possible implementation of the first aspect, in the ninth possible implementation manner of the first aspect, if the WLAN under the VPLMN is selected, the After entering the WLAN of the selected network, it also includes:

Receiving an ANDSF policy of the VPLMN, the WLAN information in the VPLMN included in the ANDSF policy of the VPLMN has a higher priority than the WLAN information in the VPLMN included in the ANDSF policy of the HPLMN.

In a second aspect, an embodiment of the present invention provides a network access apparatus, including:

a processor, configured to, according to the information about the HPLMN included in the access network discovery and selection function entity ANDSF policy of the home public land mobile network HPLMN, and the information of the public land mobile network VPLMN, from the wireless local area network WLAN of the HPLMN Or selecting a WLAN to be accessed from a WLAN of the VPLMN, or from a WLAN of the HPLMN and the VPLMN; The transceiver is further configured to access the selected WLAN by the processor.

In a first possible implementation manner of the second aspect, the information of the HPLMN or the

The information of the VPLMN includes a first identity, and the first identity includes a public land mobile network PLMN identity of the VPLMN in the ANDSF policy.

In conjunction with the second aspect or the first possible implementation of the first aspect, in a second possible implementation of the second aspect, the processor is configured to:

In conjunction with the second possible implementation of the second aspect, in a third possible implementation of the second aspect, the processor is specifically configured to:

If the policy of selecting the WLAN of the HPLMN and the policy of selecting the WLAN of the VPLMN are both valid in the ANDSF policy of the HPLMN, selecting the WLAN of the HPLMN;

If the policy of selecting the WLAN of the HPLMN in the ANDSF policy of the HPLMN is not valid, selecting a WLAN according to a priority of each VPLMN network in the VPLMN; and selecting a WLAN policy of the VPLMN in an ANDSF policy of the HPLMN If not in effect, the WLAN of the HPLMN is selected.

In conjunction with the third possible implementation of the second aspect, in a fourth possible implementation of the second aspect, the processor is further configured to:

Selecting, according to the information of the HPLMN and the information of the VPLMN included in the ANDSF policy of the HPLMN, from the WLAN of the HPLMN, or from the WLAN of the VPLMN, or from the WLAN of the HPLMN and the VPLMN Before accessing the WLAN, obtaining a service set identifier SSID in the network coverage area;

In combination with the second aspect or the first possible implementation of the second aspect, in the second aspect In five possible implementation manners, if the second identifier is not included in the ANDSF policy of the HPLMN, the processor is configured to use, according to the information of the HPLMN and the information of the VPLMN included in the ANDSF policy of the HPLMN, from the HPLMN In the WLAN, or select the WLAN to be accessed from the WLAN of the VPLMN, or from the WLANs of the HPLMN and the VPLMN; or

If the second identifier is included in the ANDSF policy of the HPLMN, the processor is configured to select a WLAN in the first PLMN according to the second identifier, where the second identifier is used to indicate that the WLAN in the first PLMN is selected. The first PLMN is a PLMN that has been registered through a 3GPP access network.

With the second aspect or the first possible implementation manner of the first aspect, in a sixth possible implementation manner of the second aspect, if the third identifier is not included in the ANDSF policy of the HPLMN, the processor uses Selecting the desired access from the WLAN of the HPLMN, or from the WLAN of the VPLMN, or from the WLAN of the HPLMN and the VPLMN according to the information of the HPLMN and the information of the VPLMN included in the ANDSF policy of the HPLMN WLAN;

If the third identifier is included in the ANDSF policy of the HPLMN, and the third identifier is used to indicate that the ANDSF policy further includes network information set by a user, the processor is configured to select a user according to the third identifier. The WLAN is configured to indicate that the ANDSF policy further includes network information set by the user.

The method of any one of the second aspect, wherein the information of the VPLMN further includes network offloading. In a seventh possible implementation manner of the second aspect, At least one of capability information, type information of the WLAN network, policy effective location information, and policy effective time information.

In conjunction with the method of any of the second aspect, the seventh possible implementation of the second aspect, in the eighth possible implementation of the second aspect, the information of the HPLMN further includes the HPLMN WLAN information, the information of the VPLMN further includes WLAN information under the VPLMN, and the processor is further configured to:

Selecting an SSID from the service set identifier SSID included in the WLAN information of the selected network; or selecting an SSID that matches the Realm according to the domain Realm included in the WLAN information; or, according to the WLAN information The unique identifier of the organization contained in OUI, selecting the SSID under the OUI;

The transceiver is configured to access a WLAN corresponding to the selected SSID.

In a ninth possible implementation manner of the second aspect, the processor is further configured to:

If the selected network is a VPLMN, after accessing the WLAN of the selected network, receiving an ANDSF policy of the VPLMN, the priority of the WLAN information in the VPLMN included in the ANDSF policy of the VPLMN is higher than the ANDSF of the HPLMN. The WLAN information under the VPLMN included in the policy.

The network access method and apparatus provided by the embodiments of the present invention include the information of the HPLMN and the information of the VPLMN in the ANDSF policy of the HPLMN, so that the UE may be in the wireless LAN WLAN of the HPLMN during the network selection process, or The WLAN to be accessed is selected from the WLAN of the VPLMN or the WLAN of the HPLMN and the VPLMN, thereby enabling the UE to flexibly select the WLAN access network. DRAWINGS

The drawings used in the embodiments or the description of the prior art are briefly described. It is obvious that the drawings in the following description are some embodiments of the present invention, and are not creative to those skilled in the art. Other drawings can also be obtained from these drawings on the premise of labor.

1 is a flowchart of Embodiment 1 of a network access method according to the present invention;

2 is a schematic diagram of an ISMP structure in an ANDSF policy in Embodiment 1 of a network access method according to the present invention;

3 is a schematic diagram of an ISRP structure in an ANDSF policy in Embodiment 1 of a network access method according to the present invention;

4 is a schematic structural diagram of an ISMP in an ANDSF policy in Embodiment 2 of a network access method according to the present invention;

5 is a schematic structural diagram of a VPLMN included in an ISMP or an ISRP in an ANDSF policy according to Embodiment 3 of the network access method of the present invention;

6 is an ISMP in an ANDSF policy in Embodiment 4 of the network access method of the present invention; Schematic diagram of the structure of the VPLMN included in the ISRP;

7 is a signaling flowchart of Embodiment 5 of a network access method according to the present invention;

FIG. 8 is a schematic structural diagram of Embodiment 1 of a network access device according to the present invention. The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. The embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

1 is a flowchart of a first embodiment of a network access method according to the present invention. As shown in FIG. 1 , in this embodiment, a UE is used as an execution entity as an example. The method in this embodiment may include:

S101. The information about the HPLMN included in the access network discovery and selection function entity ANDSF policy of the access public land mobile network (Home PLMN, hereinafter referred to as: HPLMN) and the visited public land mobile network (Visit PLMN, hereinafter referred to as VPLMN) Information from the HPLMN's WLAN WLAN, or from the VPLMN's WLAN, or from the HPLMN and VPLMN WLANs to select the WLAN to access.

SI 02, access to the selected WLAN.

In S101, the information of the HPLMN or the information of the VPLMN includes a first identifier, and the first identifier includes a PLMN identifier of the VPLMN in the ANDSF policy. The ANDSF policy includes an Inter-system mobility policy (hereinafter referred to as ISMP), an access network discovery information, and an inter-system routing policy (hereinafter referred to as ISRP). As shown in FIG. 2, the ISMP includes a first identifier VPLMN, and the VPLMN includes a PLMN ID of the VPLMN. FIG. 3 is a schematic diagram of an ISRP structure in an ANDSF policy according to Embodiment 1 of the network access method of the present invention. As shown in FIG. 3, the ISRP includes a first identifier VPLMN, and the VPLMN includes a PLMN ID of the VPLMN.

Optionally, the SI 01 selects the desired access from the wireless LAN WLAN of the HPLMN, or from the WLAN of the VPLMN, or from the WLAN of the HPLMN and the VPLMN according to the information of the HPLMN and the information of the VPLMN included in the ANDSF policy of the HPLMN. of WLAN, specifically:

Select the WLAN to access from the HPLMN's WLAN, or from the VPLMN's WLAN, or from the HPLMN and VPLMN's WLAN, based on the information priority contained in the HPLMN's ANDSF policy. Specifically, referring to FIG. 2, the rule priority is the information priority included in the ANDSF policy, and the UE performs WLAN selection according to the rule priority when selecting.

Further, if the policy of selecting the WLAN of the HPLMN in the ANDSF policy of the HPLMN and the policy of selecting the WLAN of the VPLMN are both effective, the WLAN of the HPLMN is selected.

If the policy of selecting the WLAN of the HPLMN in the ANDSF policy of the HPLMN is not valid, the WLAN is selected according to the priority of each VPLMN network in the VPLMN. This embodiment is applicable, for example, in the case of the user roaming to the VPLMN in the policy, in the ANDSF policy of the HPLMN. The policy of the included WLAN of the HPLMN does not take effect, so the user selects the WLAN according to the priority of each VPLMN network in the VPLMN.

If the policy of selecting the VPLMN WLAN in the ANDSF policy of the HPLMN does not take effect, the WLAN of the HPLMN is selected. This embodiment is suitable, for example, if the user only has HPLMN, the policy of the VPLMN WLAN included in the HPLMN's ANDSF policy will not take effect, and the user selects the HPLMN's WLAN.

On the basis of the embodiment shown in FIG. 1 , in the second embodiment of the network access method in the embodiment of the present invention, before S101, the method further includes:

S103. Obtain a service set identifier SSID in a network coverage area.

5104. Obtain network information supported by each SSID by using an Access Network Query Protocol (hereinafter referred to as ANQP) message or a system broadcast message.

5105. Determine, according to the network information supported by each SSID, whether the policy of selecting the WLAN of the HPLMN in the ANDSF policy of the HPLMN and the policy of selecting the WLAN of the VPLMN are valid.

In the above embodiment, as an implementable manner, step S101 is specifically: if the second identifier is not included in the ANDSF policy of the HPLMN, according to the information of the HPLMN and the information of the VPLMN included in the ANDSF policy of the HPLMN, In the WLAN of the HPLMN, or select the WLAN to be accessed from the WLAN of the VPLMN, or from the WLAN of the HPLMN and the VPLMN; or If the second identifier is included in the ANDSF policy of the HPLMN, the WLAN under the “PLMN” is selected according to the second identifier, where the second identifier is used to indicate that the WLAN under the “PLMN” is selected, and the first PLMN is registered by the 3GPP access network. PLMN. 4 is a schematic structural diagram of an ISMP in an ANDSF policy according to Embodiment 2 of the network access method of the present invention. As shown in FIG. 4, the ISMP further includes whether the second identifier WLAN uses the same PLMN identifier as the 3GPP, and if the identifier exists, Then, during the network selection process, the WLAN under the first PLMN is selected. Similarly, the identifier is also included in the ISRP.

As another implementable manner, step S101 is specifically:

If the third identifier is not included in the ANDSF policy of the HPLMN, the HPLMN information and the VPLMN information contained in the HPLMN's ANDSF policy are from the HPLMN.

In a WLAN, either from a VPLMN WLAN, or from HPLMN and VPLMN

Select the WLAN to be accessed in the WLAN; or,

If the HPLMN's ANDSF policy includes a third identifier, the third identifier is used to indicate

The ANDSF policy also includes the network information set by the user, and then the WLAN set by the user is selected according to the third identifier, and the third identifier is used to indicate that the ANDSF policy further includes the network information set by the user. This embodiment can implement setting network information according to the user's preference, so that the user can select his preferred network access.

In any of the above embodiments, the information of the VPLMN may further include network offload capability information,

At least one of the type information of the WLAN network, the policy effective location information, and the policy effective time information. The information of the VPLMN includes the PLMN ID of the VPLMN, the network offloading capability information, the policy effective location information, and the policy effective time information. FIG. 5 is a VPLMN included in the ISPF or the ISRP in the ANDSF policy in the third embodiment of the network access method of the present invention. The structure diagram of the VPLMN includes the PLMN ID, the policy effective location information (effective range?) Including networks based on non-seamless shunting

IP connectivity, service-based IP mobility, and stream-based IP mobility. Among them, type information of the WLAN network such as a private network, a paid public network, and a free public network.

In any of the above embodiments, further, the information of the HPLMN further includes the HPLMN

WLAN information, the information of the VPLMN also includes the WLAN information under the VPLMN, wherein the WLAN information of the PLMN refers to the WLAN information indicated in the ANDSF policy of the PLMN, specifically The WLAN access network deployed by the PLMN operator, or the WLAN access network deployed by the WLAN operator having a roaming cooperative relationship with the PLMN operator, or the WLAN access network that can communicate with the PLMN network, or include All of the above WLAN access networks. 6 is a schematic structural diagram of the present invention. As shown in FIG. 6, the information of the VPLMN includes the PLMN ID and the WLAN network information under the VPLMN. At this time, the S101 is from the WLAN of the HPLMN, or from the WLAN of the VPLMN, or from the HPLMN. Select the WLAN to be accessed in the WLAN of the VPLMN, specifically:

SlOla, selecting an SSID from a service set identifier (hereinafter referred to as SSID) included in the WLAN information of the selected network; or selecting an SSID that conforms to the Realm according to the domain Realm included in the WLAN information; Or, according to the Organizational Unique Identifiers (OUI) included in the WLAN information, select the SSID under the OUI.

S102 accesses the WLAN of the selected network, specifically:

S102a, accessing the WLAN corresponding to the selected S SID.

In any of the above embodiments, the ANDSF evaluation can be triggered to initiate and select the network upon power on or restart, or from a no signal coverage area to a signal coverage area, or roaming to a VPLMN.

If the selected network is a WLAN under the VPLMN, after accessing the WLAN of the selected network, the method further includes:

Receiving the ANDSF policy of the VPLMN, the WLAN information in the VPLMN included in the ANDSF policy of the VPLMN has higher priority than the WLAN information in the VPLMN included in the ANDSF policy of the HPLMN.

The network access method provided in this embodiment includes the information of the HPLMN and the information of the VPLMN in the ANDSF policy of the HPLMN, so that the UE can be in the process of performing network selection, from the wireless local area network WLAN of the HPLMN, or from the VPLMN. In the WLAN, the WLAN to be accessed is selected from the WLANs of the HPLMN and the VPLMN, thereby enabling the UE to flexibly select the WLAN access network.

The technical solution of the method embodiment shown above is described in detail below by using a specific embodiment. FIG. 7 is a signaling flowchart of Embodiment 5 of the network access method of the present invention. As shown in FIG. 7, the method in this embodiment may include:

S201: The UE registers with the HPLMN on the 3GPP home network, and obtains the ANDSF policy from the ANDSF (Home ANDSF, H-ANDSF) of the HPLMN.

S202. The UE searches for an SSID in the coverage area.

5203. The UE obtains network information supported by each SSID by using an ANQP message or a system broadcast message, that is, a PLMN list supported by each S SID.

5204. The UE triggers ANDSF evaluation to perform network discovery and selection when the UE is powered on or restarted, or enters the signal coverage area from the no-signal coverage area, or roams to the VPLMN, or in the case of periodic policy evaluation.

Specifically, the UE selects the WLAN to be accessed from the WLAN of the HPLMN, or from the WLAN of the VPLMN, or from the WLAN of the HPLMN and the VPLMN according to the information priority included in the ANDSF policy of the HPLMN. If the HPLMN's WLAN policy is selected in the ANDLM policy of the HPLMN and the VPLMN's WLAN policy is selected, the HPLMN WLAN is selected.

If the policy of selecting the VPLMN WLAN in the ANDSF policy of the HPLMN does not take effect, the WLAN of the HPLMN is selected. This embodiment is suitable, for example, if the user only has HPLMN, the policy of the VPLMN WLAN included in the HPLMN's ANDSF policy will not take effect, and the user selects the HPLMN's WLAN. .

Wherein, if the second identifier is not included in the ANDSF policy of the HPLMN, according to the information of the HPLMN and the information of the VPLMN included in the ANDSF policy of the HPLMN, from the WLAN of the HPLMN, or from the WLAN of the VPLMN, or from the HPLMN and the VPLMN Selecting the WLAN to be accessed in the WLAN; or, if the second identifier is included in the ANDSF policy of the HPLMN, selecting the WLAN in the first PLMN according to the second identifier, where the second identifier is used to indicate that the WLAN in the first PLMN is selected, A PLMN is already connected through 3GPP The PLMN registered by the network.

If the third identifier is not included in the ANDSF policy of the HPLMN, according to the information of the HPLMN and the information of the VPLMN included in the ANDSF policy of the HPLMN, from the WLAN of the HPLMN, or from the WLAN of the VPLMN, or from the WLAN of the HPLMN and the VPLMN Selecting the WLAN to be accessed; or, if the ANDSF policy of the HPLMN includes the third identifier, the third identifier is used to indicate that the ANDSF policy further includes the network information set by the user, and then the WLAN set by the user is selected according to the third identifier, and the third The identifier is used to indicate network information that also includes user settings in the ANDSF policy.

The information of the VPLMN may further include at least one of network offload capability information, type information of the WLAN network, policy effective location information, and policy effective time information. The UE can perform corresponding selection and operation according to the above information.

Further, the information of the HPLMN further includes the WLAN information under the HPLMN, and the information of the VPLMN further includes the WLAN information under the VPLMN, and then the selected one is selected from the WLAN of the HPLMN, or from the WLAN of the VPLMN, or from the WLAN of the HPLMN and the VPLMN. The incoming WLAN is specifically:

Select an SSID from a Service Set Identifier (hereinafter referred to as SSID) included in the WLAN information of the selected network; or, according to the domain Realm included in the WLAN information, select an S SID that conforms to Realm; or According to the Organizational Unique Identifiers (OUI) included in the WLAN information, select the SSID under the OUI.

S205. The UE accesses the selected WLAN according to the SSID selected in S204, and the WLAN access network indicated by the SSID is registered to the PLMN corresponding to the WLAN.

If the selected network is a VPLMN, after accessing the WLAN of the selected network, it also includes:

S206. Receive an ANDSF policy of the VPLMN.

S207. When performing the network selection process, the WLAN information in the VPLMN in the ANDSF policy of the VPLMN has higher priority than the WLAN information in the VPLMN in the ANDSF policy of the HPLMN.

It will be understood by those skilled in the art that all or part of the steps of implementing the above method embodiments may be performed by hardware related to the program instructions. The aforementioned program can be stored in a calculation The machine can be read from the storage medium. When the program is executed, the steps including the foregoing method embodiments are performed; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

FIG. 8 is a schematic structural diagram of Embodiment 1 of a network access device according to the present invention. As shown in FIG. 8, the device in this embodiment may include: a processor 11 and a transceiver 12, where

The processor 11 is configured to: according to the information about the HPLMN included in the access network selection and selection function entity ANDSF policy of the home public land mobile network HPLMN and the information of the public land mobile network VPLMN, from the wireless local area network WLAN of the HPLMN, or from the VPLMN In the WLAN, or select the WLAN to be accessed from the WLANs of the HPLMN and the VPLMN;

The transceiver 12 is used to access the selected WLAN.

The information of the HPLMN or the information of the VPLMN includes a first identifier, where the first identifier includes a public land mobile network PLMN identifier of the VPLMN in the ANDSF policy.

Optionally, the processor 11 is configured to select, according to the information priority included in the ANDSF policy of the HPLMN, the WLAN to be accessed from the WLAN of the HPLMN, or from the WLAN of the VPLMN, or from the WLAN of the HPLMN and the VPLMN. .

Further, the processor 11 is specifically configured to:

If the policy of selecting the WLAN of the HPLMN in the ANDSF policy of the HPLMN and the policy of selecting the WLAN of the VPLMN are both effective, the WLAN of the HPLMN is selected;

If the policy of selecting the WLAN of the HPLMN in the ANDSF policy of the HPLMN is not valid, the WLAN is selected according to the priority of each VPLMN network in the VPLMN;

If the policy of selecting the VPLMN WLAN in the ANDSF policy of the HPLMN does not take effect, the WLAN of the HPLMN is selected.

Further, the processor 11 is further configured to:

Obtaining HPLMN and / before selecting the WLAN to be accessed from the WLAN of the HPLMN, or from the WLAN of the VPLMN, or from the WLAN of the HPLMN and the VPLMN, according to the information of the HPLMN and the information of the VPLMN included in the ANDSF policy of the HPLMN. Or the SSID in the VPLMN area;

Obtaining network information supported by each S SID by accessing a network query protocol ANQP message or a system broadcast message; According to the network information supported by each SSID, it is determined whether the policy of selecting the WLAN of the HPLMN and the policy of selecting the WLAN of the VPLMN in the ANDSF policy of the HPLMN are valid.

Optionally, if the second identifier is not included in the ANDSF policy of the HPLMN, the processor 11 is configured to use the information of the HPLMN and the information of the VPLMN included in the ANDSF policy of the HPLMN, from the WLAN of the HPLMN, or from the WLAN of the VPLMN. Or selecting the WLAN to be accessed from the WLANs of the HPLMN and the VPLMN; or, if the second identifier is included in the ANDSF policy of the HPLMN, the processor 11 is configured to select the WLAN under the first PLMN according to the second identifier, and the second identifier It is used to indicate that the WLAN under the “PLMN” is selected, and the first PLMN is a PLMN that has been registered through the 3GPP access network.

Optionally, if the third identifier is not included in the ANDSF policy of the HPLMN, the processor 11 is configured to use the information of the HPLMN and the information of the VPLMN included in the ANDSF policy of the HPLMN, from the WLAN of the HPLMN, or from the WLAN of the VPLMN. Or selecting the WLAN to be accessed from the WLANs of the HPLMN and the VPLMN; or, if the ANDSF policy of the HPLMN includes the third identifier, and the third identifier is used to indicate that the ANDSF policy further includes the network information set by the user, the processor 11 The WLAN is configured to select a user according to the third identifier, where the third identifier is used to indicate that the ANDSF policy further includes network information set by the user.

In the above embodiment, the information of the VPLMN further includes at least one of network offload capability information, type information of the WLAN network, policy effective location information, and policy effective time information.

In the above embodiment, the information of the HPLMN also includes the WLAN information under the HPLMN.

The VPLMN information further includes WLAN information under the VPLMN, and the processor 11 is further configured to: select one SSID from the service set identifier SSID included in the WLAN information of the selected network; or, according to the domain included in the WLAN information Realm, select the SSID that meets the Realm; or, according to the organization unique identifier OUI included in the WLAN information, select the SSID under the OUI;

The transceiver 12 is configured to access the WLAN corresponding to the selected SSID.

In the above embodiment, the processor 11 is further configured to:

If the selected network is a VPLMN, after accessing the WLAN of the selected network, receiving the ANDSF policy of the VPLMN, the priority of the WLAN information in the VPLMN included in the ANDSF policy of the VPLMN is higher than the VPLMN included in the ANDSF policy of the HPLMN. of WLAN information.

The network access apparatus provided in this embodiment includes the information of the HPLMN and the information of the VPLMN in the ANDSF policy of the HPLMN, so that the processor can perform the network selection process from the wireless local area network WLAN of the HPLMN or from the VPLMN. In the WLAN, or selecting the WLAN to be accessed from the WLANs of the HPLMN and the VPLMN for the transceiver to access, the UE can flexibly select the WLAN access network.

It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

claims

1. A network access method, characterized by including:

According to the information of the HPLMN contained in the ANDSF policy of the access network discovery and selection function entity of the home public land mobile network HPLMN and the information of the visiting public land mobile network VPLMN, from the wireless local area network WLAN of the HPLMN, or from the The WLAN of the VPLMN, or select the WLAN to be accessed from the WLANs of the HPLMN and VPLMN;

Access the selected WLAN.

2. The method according to claim 1, wherein the HPLMN information or the VPLMN information includes a first identifier, and the first identifier includes a public land mobile network PLMN identifier of the VPLMN.

3. The method according to claim 1 or 2, characterized in that, the information of the HPLMN and the information of the VPLMN contained in the ANDSF policy according to the HPLMN are obtained from the wireless local area network WLAN of the HPLMN, or from the Selecting the WLAN to be accessed from the WLAN of the VPLMN, or selecting the WLAN to be accessed from the WLANs of the HPLMN and VPLMN, includes: selecting from the wireless LAN WLAN of the HPLMN according to the information priority contained in the ANDSF policy of the HPLMN, or Select the WLAN to be accessed from the WLAN of the VPLMN, or from the WLANs of the HPLMN and the VPLMN.

4. The method according to claim 3, characterized in that, the information priority contained in the ANDSF policy of the HPLMN is obtained from the wireless local area network WLAN of the HPLMN or from the WLAN of the VPLMN, Or select the WLAN to access from the WLANs of the HPLMN and VPLMN, including:

If in the ANDSF policy of the HPLMN, the policy of selecting the WLAN of the HPLMN and the policy of selecting the WLAN of the VPLMN are both effective, then the WLAN of the HPLMN is selected;

If in the ANDSF policy of the HPLMN, the policy of selecting the WLAN of the HPLMN is not effective, then select the WLAN according to the priority of each VPLMN network in the VPLMN; if in the ANDSF policy of the HPLMN, select the WLAN of the VPLMN The policy does not take effect, then select the WLAN of the HPLMN.

5. The method according to claim 4, characterized in that: the method according to HPLMN The information of the HPLMN and the information of the VPLMN contained in the ANDSF policy, before selecting the WLAN to be accessed from the WLAN of the HPLMN, or from the WLAN of the VPLMN, or from the WLANs of the HPLMN and VPLMN, It also includes: Obtaining the service set identifier SSID within the network coverage area;

Obtain the network information supported by each S SID by accessing the network query protocol ANQP message or system broadcast message;

According to the network information supported by each SSID, it is determined whether the policy of selecting the WLAN of the HPLMN and the policy of selecting the WLAN of the VPLMN in the ANDSF policy of the HPLMN are effective.

6. The method according to claim 1 or 2, characterized in that,

The information of the HPLMN and the information of the VPLMN contained in the ANDSF policy according to the HPLMN are selected from the WLAN of the HPLMN, or from the WLAN of the VPLMN, or from the WLANs of the HPLMN and VPLMN. Enter the WLAN, specifically:

If the ANDSF policy of the HPLMN does not include the second identifier, then according to the information of the HPLMN and the information of the VPLMN contained in the ANDSF policy of the HPLMN, from the WLAN of the HPLMN or from the WLAN of the VPLMN, Or select the WLAN to be accessed from the WLANs of the HPLMN and VPLMN; or,

If the ANDSF policy of the HPLMN includes the second identifier, select the WLAN under the first PLMN according to the second identifier, and the second identifier is used to indicate the selection of the WLAN under the first PLMN, and the - PLMN is a PLMN that has been registered through the 3GPP access network.

7. The method according to claim 1 or 2, characterized in that,

If the ANDSF policy of the HPLMN does not include the third identifier, then according to the information of the HPLMN and the information of the VPLMN contained in the ANDSF policy of the HPLMN, from the WLAN of the HPLMN or from the WLAN of the VPLMN, Or select the WLAN to be accessed from the WLANs of the HPLMN and VPLMN; or, If the ANDSF policy of the HPLMN includes the third identifier, and the third identifier is used to indicate that the ANDSF policy also contains network information set by the user, then the WLAN set by the user is selected according to the third identifier, so The third identifier is used to indicate that the ANDSF policy also includes network information set by the user.

8. The method according to any one of claims 1 to 7, characterized in that the VPLMN information also includes network offloading capability information, WLAN network type information, policy effective location information and policy effective time information. At least one message.

9. The method according to any one of claims 1 to 8, characterized in that the HPLMN information also includes WLAN information under the HPLMN, and the VPLMN information also includes WLAN information under the VPLMN , then selecting the WLAN to be accessed from the WLAN of the HPLMN, or from the WLAN of the VPLMN, or from the WLANs of the HPLMN and VPLMN, includes:

Select an SSID from the service set identifier SSID contained in the WLAN information of the selected network; or, according to the domain Realm contained in the WLAN information, select an SSID that matches the Realm; or, according to the WLAN information The organization unique identifier OUI contained in the OUI, select the SSID under the OUI;

The WLAN that accesses the selected network, including:

Access the WLAN corresponding to the selected SSID.

10. The method according to any one of claims 1 to 9, characterized in that, if a WLAN under a VPLMN is selected, after accessing the WLAN of the selected network, the method further includes: receiving an ANDSF of the VPLMN. policy, the WLAN information under the VPLMN contained in the ANDSF policy of the VPLMN has a higher priority than the WLAN information under the VPLMN contained in the ANDSF policy of the HPLMN.

11. A network access device, characterized by including:

A processor configured to obtain information from the wireless local area network WLAN of the HPLMN based on the information of the HPLMN contained in the ANDSF policy of the access network discovery and selection function entity of the home public land mobile network HPLMN and the information of the visiting public land mobile network VPLMN. , or select the WLAN to be accessed from the WLAN of the VPLMN, or from the WLANs of the HPLMN and VPLMN;

Transceiver for access to the selected WLAN.

12. The device according to claim 11, wherein the HPLMN information or the VPLMN information includes a first identifier, and the first identifier includes the public land mobile network of the VPLMN in the ANDSF policy. PLMN logo.

13. The device according to claim 11 or 12, characterized in that the processor is used for:

According to the priority of information contained in the ANDSF policy of the HPLMN, the WLAN to be accessed is selected from the wireless local area network WLAN of the HPLMN, or from the WLAN of the VPLMN, or from the WLANs of the HPLMN and VPLMN.

14. The device according to claim 13, characterized in that the processor is specifically used to:

If both the policy of selecting the WLAN of the HPLMN and the policy of selecting the WLAN of the VPLMN in the ANDSF policy of the HPLMN are effective, then the WLAN of the HPLMN is selected;

If the policy of selecting the WLAN of the HPLMN in the ANDSF policy of the HPLMN does not take effect, select a WLAN according to the priority of each VPLMN network in the VPLMN; if the policy of selecting the WLAN of the VPLMN in the ANDSF policy of the HPLMN is If it does not take effect, select the WLAN of the HPLMN.

15. The apparatus according to claim 14, wherein the processor is further configured to: obtain the HPLMN information and the VPLMN information included in the HPLMN-based ANDSF policy from the WLAN of the HPLMN , or before selecting the WLAN to be accessed from the WLAN of the VPLMN, or from the WLANs of the HPLMN and VPLMN, obtain the service set identifier SSID within the network coverage area;

16. The device according to claim 11 or 12, characterized in that,

If the ANDSF policy of the HPLMN does not include the second identifier, the processor is configured to obtain information from the WLAN of the HPLMN or from the VPLMN according to the information of the HPLMN and the information of the VPLMN contained in the ANDSF policy of the HPLMN. In VPLMN WLAN, Or select the WLAN to be accessed from the WLANs of the HPLMN and VPLMN; or, if the ANDSF policy of the HPLMN includes the second identifier, the processor is configured to select the first PLMN according to the second identifier The second identifier is used to indicate selecting a WLAN under a first PLMN, and the first PLMN is a PLMN that has been registered through the 3GPP access network.

17. The device according to claim 11 or 12, wherein if the ANDSF policy of HPLMN does not include a third identifier, the processor is configured to use the information of HPLMN contained in the ANDSF policy of HPLMN. and VPLMN information, select the WLAN to be accessed from the WLAN of the HPLMN, or from the WLAN of the VPLMN, or from the WLANs of the HPLMN and VPLMN; or

If the ANDSF policy of the HPLMN includes the third identifier, and the third identifier is used to indicate that the ANDSF policy also includes network information set by the user, the processor is configured to select the user according to the third identifier. The set WLAN, the third identifier is used to indicate that the ANDSF policy also contains network information set by the user.

18. The device according to any one of claims 11 to 17, characterized in that:

The VPLMN information also includes at least one of network offloading capability information, WLAN network type information, policy effective location information, and policy effective time information.

19. The device according to any one of claims 11 to 18, wherein the HPLMN information also includes WLAN information under the HPLMN, and the VPLMN information also includes WLAN information under the VPLMN , then the processor is also used to:

The transceiver is used to access the WLAN corresponding to the selected SSID.

20. The device according to any one of claims 11 to 19, characterized in that the processor is also used for:

If the selected network is VPLMN, after accessing the WLAN of the selected network, receive the ANDSF policy of the VPLMN, and the WLAN information under the VPLMN contained in the ANDSF policy of the VPLMN has a higher priority than the ANDSF of the HPLMN WLAN information under VPLMN contained in the policy.