WO2014067429A1 - 一种发现和选择热点2.0接入网的方法、装置和系统 - Google Patents

一种发现和选择热点2.0接入网的方法、装置和系统 Download PDF

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Publication number
WO2014067429A1
WO2014067429A1 PCT/CN2013/086012 CN2013086012W WO2014067429A1 WO 2014067429 A1 WO2014067429 A1 WO 2014067429A1 CN 2013086012 W CN2013086012 W CN 2013086012W WO 2014067429 A1 WO2014067429 A1 WO 2014067429A1
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Prior art keywords
access network
access
andsf
characteristic information
hotspot
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PCT/CN2013/086012
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English (en)
French (fr)
Inventor
陈淑
霍玉臻
朱春晖
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中兴通讯股份有限公司
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Publication of WO2014067429A1 publication Critical patent/WO2014067429A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/14Access restriction or access information delivery, e.g. discovery data delivery using user query or user detection

Definitions

  • the present invention relates to the field of mobile communication technologies, and in particular, to a method, device and system for discovering and selecting a Hotspot 2.0 (HS 2.0) access network.
  • HS 2.0 Hotspot 2.0
  • EPS Evolved Packet System
  • the entire EPS is divided into two parts: the wireless access network and the core network.
  • the radio access network is divided into a 3GPP access network and a non-3GPP access network.
  • the radio access network is composed of an Evolved NodeB (eNB) and a 3rd Generation (3G) Radio Network Controller (RNC), which is mainly responsible for receiving and receiving wireless signals.
  • eNB Evolved NodeB
  • 3G 3rd Generation
  • RNC Radio Network Controller
  • HSS Home Subscriber Server
  • MME Mobility Management Entity
  • GPRS General Packet Radio Service
  • SGSN Home Subscriber Server
  • PCRF Policy and Charging Rule Function
  • S-GW Serving Gateway
  • Packet Data Network Gateway Packet Data Network Gateway
  • Figure la is a schematic structural diagram of a 3GPP access system and a non-3GPP access system accessing an evolved packet core network (Evolved Packet Core, EPC for short).
  • EPC evolved Packet Core
  • EPS supports 3GPP access.
  • the HSS is a permanent storage location for user subscription data, located in the home network to which the user subscribes.
  • the MME is responsible for control plane related functions such as mobility management, processing of non-access stratum signaling, and management of user mobility management context.
  • S-GW is connected to 3GPP The access gateway device connected to the network forwards data between the 3GPP access and the P-GW and buffers the data.
  • the P-GW is a border gateway between the EPS and the Packet Data Network (PDN), and is responsible for the access of the PDN and the forwarding of data between the EPS and the PDN.
  • the PCRF is a policy and charging rule function entity.
  • SGSN is the Global System for Mobile Communications (GSM) / Enhanced Data Rates for GSM Evolution (EDGE ) Radio Access Network (GERAN ) and Universal Terrestrial Radio Access
  • GSM Global System for Mobile Communications
  • EDGE Enhanced Data Rates for GSM Evolution
  • GERAN Universal Terrestrial Radio Access
  • the service support node of the user accessing the core network of the Universal Terrestrial Radio Access Network (UTRAN) is similar to the MME in function, and is responsible for functions such as location update, paging management, and bearer management of the user.
  • EPS also supports non-3GPP access.
  • the interworking with the non-3GPP access is implemented through the S2a/S2b/S2c interface, and the ⁇ -GW is used as an anchor between the 3GPP access and the non-3GPP access.
  • Non-3GPP access is divided into credit non-3GPP access and non-credit non-3GPP access.
  • the non-3GPP access can be directly connected to the P-GW through the S2a interface, and the S2a interface uses the Proxy Mobile Internet Protocol (PMIP) protocol for information interaction.
  • PMIP Proxy Mobile Internet Protocol
  • the untrusted non-3GPP access is connected to the P-GW through an Evolved Packet Data Gateway (ePDG).
  • ePDG Evolved Packet Data Gateway
  • the interface between the ePDG and the P-GW is an S2b interface.
  • the S2c interface provides user plane control and mobility support between the user equipment (User Equipment, UE for short) and the P-GW.
  • the supported mobility protocol is dual IPv2 mobile IPv6 support for Dual Stack Hosts. And Routers, referred to as DSMIPv6).
  • WLAN wireless local area network
  • the Access Network Discovery and Selection Function (ANDSF) entity acts as an access anchor, enabling intelligent network selection and effective network-to-terminal interaction through the network.
  • ANDSF is proposed in Release 8 (Release 8, R8).
  • the EPS may provide the available access network discovery information or inter-system mobility policy to the UE through the ANDSF according to the current location information of the UE.
  • ISMP Inter-System Mobility Policy
  • the UE uses the information provided by the ANDSF to select an appropriate access network for registration.
  • the EPS may provide an Inter-System Routing Policy (ISRP) to the UE through the ANDSF according to the current location information of the UE, and the UE uses the information provided by the ANDSF to select an appropriate one.
  • ISRP Inter-System Routing Policy
  • the access network is offloaded.
  • the ANDSF is connected to the UE through the S14 interface.
  • the S14 interface uses the Open Mobile Alliance Device Management (OMA DM) protocol.
  • OMA DM Open Mobile Alliance Device Management
  • the ANDSF can solve the 3GPP handover to non-3GPP access network selection problem. It can also solve the problem of the offloading and routing of multiple access terminals, for example, a UE (IP Flow Mobility capable UE, hereinafter referred to as IFOM capable UE) that has and activates the IP stream migration capability, and a UE that has and activates the multi-access PDN connection capability (
  • a multiple access PDN Connectivity capable UE abbreviated as MAPCON capable UE
  • NSWO capable UE a shunt routing problem with a non-seamless WLAN offload capable UE.
  • WLAN technology is also continuing to develop.
  • HS 2.0 is also called Next Generation Hotspot (NGH). It is pushed by the AP (Access Point) to the UE through the advertisement server.
  • Interoperable external network information provides WLAN users with seamless roaming and seamless authentication capabilities, enabling WLAN users to experience and feel close to cellular users.
  • the advertisement server in the ANDSF and Hotspot 2.0 technologies can be fused to provide the UE with some characteristic information of the hotspot 2.0 access network in a built-in or external interface manner.
  • the ANDSF can statically configure the feature information of the Hotspot 2.0 access network.
  • the characteristic information of the hotspot 2.0 access network is transmitted on the S14 interface shown in FIG.
  • the ANDSF in the related art cannot indicate when selecting a WLAN access network for the UE. Whether the UE is billed/free for the WLAN access network.
  • hotspots deployed at McDonald's, Starbucks, etc. are usually free; hotspots deployed at places such as the Capital Airport are usually billed; and hotspots placed by operators at locations are usually billed, but It is not excluded that there are free offers during the trial or test period. However, it is not possible for the UE to know whether all available hotspots in the vicinity of its location are charged/free.
  • the ANDSF management object also fails to indicate whether the UE is billed/free for the WLAN access network.
  • the ANDSF in the related art when selecting a WLAN access network for the UE, cannot indicate whether the UE can connect to the Internet using the WLAN access network.
  • the WLAN access network that the ANDSF discovers and selects for the UE may only be connected to the local area network, and may also be connected to the Internet. If the UE desires to select a WLAN access network that can connect to the Internet, the current ANDSF management object fails to indicate the UE. Whether the WLAN access network can connect to the Internet.
  • the ANDSF in the related art cannot provide the link of the WLAN access network currently connected to the Internet when the WLAN access network is selected for the UE.
  • the UE wants to know the link status of the WLAN access network as a backhaul link, for example, whether the link is connected or interrupted, and uplink/ Information such as downlink speed, so that the UE can select whether to access the WLAN access network, but the existing ANDSF management object cannot provide the link of the WLAN access network currently connected to the Internet.
  • the ANDSF in the related art cannot select in advance when selecting a WLAN access network for the UE.
  • the UE knows the frequency band used by the WLAN access network.
  • the frequency bands currently available to the WLAN access network and the UE are 2.4 GHz and 5 GHz. Both the UE and the AP use the same frequency band to establish communication correctly. However, under the existing mechanism, the UE cannot predict in advance the frequency band used by the AP near its location through the ANDSF.
  • the embodiment of the invention provides a method, a device and a system for discovering and selecting a hotspot 2.0 access network, so that the UE can obtain related information of the hotspot 2.0 access network, and select and access according to the related information. Hotspot 2.0 access network.
  • the embodiment of the present invention provides a method for discovering and selecting a hotspot 2.0 access network, including: the user equipment UE sends an access network request message to the access network discovery and selection function ANDSF, where the access network request message includes Location information of the UE, hotspot 2.0 capability, and desired access network characteristic information;
  • the ANDSF returns an access network response message to the UE, where the access network response message includes an inter-system mobility policy or an inter-system routing policy, and access network discovery information, and the inter-system mobility policy Or an inter-system routing policy, and the access network discovery information includes access network characteristic information.
  • the sending, by the UE, the access network request message to the ANDSF includes: sending, by the UE, the non-third generation partnership plan 3GPP handover, and discovering the ANDSF, sending the access network request to the ANDSF Message
  • the access network response message returned by the ANDSF to the UE includes an inter-system mobility policy and access network discovery information
  • the method further includes: the UE receiving the inter-system mobility policy, and the access network characteristic information included in the access network discovery information, and performing selection and handover of the target access network, where The target access network is jointly identified by the access network characteristic information and a Service Set Identifier (SSID).
  • SSID Service Set Identifier
  • the sending, by the UE, the access network request message to the ANDSF includes: the UE initiates a flow migration, a multi-packet data network (PDN) connection, or a multiple access connection, and sends an ANDSF to the ANDSF when the ANDSF is found.
  • the access network request message includes: the UE initiates a flow migration, a multi-packet data network (PDN) connection, or a multiple access connection, and sends an ANDSF to the ANDSF when the ANDSF is found.
  • PDN multi-packet data network
  • the access network response message returned by the ANDSF to the UE includes an inter-system routing policy and access network discovery information
  • the method further includes: the UE receiving the inter-system routing policy, and the access network characteristic information included in the access network discovery information, and performing flow routing, where the target access network of the flow is The access network characteristic information and the SSID are jointly identified.
  • the expected access network characteristic information of the UE includes one or a combination of any one of the following information: Access network charging identifier, which indicates that the access network is free or charged;
  • the access network accesses the Internet identity, which indicates that the access network can access or cannot access the Internet; the access network wireless LAN WLAN link condition, which indicates that the access network is currently connected to a Wide Area Network (WAN) link Corresponding link state, uplink speed, downlink speed, and uplink load;
  • WAN Wide Area Network
  • the access network band identifier which indicates the frequency band of the access network is 2.4 GHz or 5 GHz.
  • the returning, by the ANDSF, the access network response message to the UE includes: the ANDSF maintaining access network characteristic information, and based on the access network characteristic information, an access technology, and an access identifier. Sorting the access network priorities in the inter-system mobility policy of the ANDSF or the inter-system routing policy;
  • the returning the access network response message by the ANDSF to the UE includes: when the ANDSF receives the access network request message that includes the location information of the UE, searching for a hotspot 2.0 access network available nearby ; as well as
  • the ANDSF acquires access network characteristic information corresponding to each AP by using an advertisement server to each access point AP of the available hotspot 2.0 access network, and the access network characteristic information corresponding to each AP And transmitting, by the access network response message, the UE.
  • the ANDSF obtains access network characteristic information corresponding to each AP by using an advertisement server to obtain, by the APs of the available hotspot 2.0 access network, the following:
  • the ANDSF sends a hotspot 2.0 access network request message to the advertisement server, where the hotspot 2.0 access network request message includes a basic service set identifier corresponding to each AP of the available hotspot 2.0 access network (Basic Service Set Identifier, BSSID), and/or Homogeneous Extended Service Set Identifier (HE S SID ), and/or SSID;
  • BSSID Basic Service Set Identifier
  • HE S SID Homogeneous Extended Service Set Identifier
  • the advertisement server sends a hotspot 2.0 access network request message to the APs, and receives the access network corresponding to each AP included in the hotspot 2.0 access network response message returned by each AP.
  • the sexual information is sent to the ANDSF through the hotspot 2.0 access network response message.
  • the embodiment of the present invention further provides an apparatus for discovering and selecting a hotspot 2.0 access network, which is applied to an access network discovery and selection function ANDSF, where the apparatus includes: an access network characteristic information management module and an access network characteristic information transmission Module, where
  • the access network characteristic information management module is configured to: maintain access network characteristic information; and the access network characteristic information delivery module is configured to: receive the location information and the hotspot 2.0 capability of the UE sent by the user equipment UE And returning an access network response message to the UE, where the access network response message includes an inter-system mobility policy or an inter-system routing policy, and The access network discovery information, and the inter-system mobility policy or the inter-system routing policy, and the access network discovery information include the access network characteristic information.
  • the access network feature information maintained by the access network characteristic information management module includes one or any combination of the following characteristic information:
  • Access network charging identifier which indicates that the access network is free or charged
  • the access network accesses the Internet identity, which indicates that the access network can access or cannot access the Internet; the access network wireless LAN WLAN link condition, which indicates the link state of the access network currently connected to the WAN link of the wide area network , uplink speed, downlink speed, and uplink load;
  • the access network band identifier which indicates the frequency band of the access network is 2.4 GHz or 5 GHz.
  • the access network characteristic information delivery module is configured to return an access network response message to the UE in the following manner:
  • the access network characteristic information delivery module is configured to return an access network response message to the UE in the following manner: Receiving the access network request message including the location information of the UE, searching for an available hotspot 2.0 access network; and obtaining, by the advertisement server, the access point APs of the available hotspot 2.0 access network The access network characteristic information corresponding to each AP sends the access network characteristic information corresponding to each AP to the UE by using the access network response message.
  • the access network characteristic information delivery module is configured to acquire, by using an advertisement server, the access network characteristic information corresponding to each AP by using an advertisement server to each AP of the available hotspot 2.0 access network:
  • Hotspot 2.0 access network request message includes a basic service set identifier BSSID corresponding to each AP of the available hotspot 2.0 access network, and/or Homogeneous extended service set identifier HESSID, and/or service set identifier SSID;
  • the embodiment of the present invention further provides an apparatus for discovering and selecting a hotspot 2.0 access network, which is applied to an advertisement server, and the apparatus includes:
  • the access network characteristic information query requesting module is configured to: receive the basic service set identifier BSSID corresponding to each access point AP of the available hotspot 2.0 access network sent by the access network discovery and selection function ANDSF, and And/or the homogeneous hotspot 2.0 access network request message of the service set identifier HESSID, and/or the service set identifier SSID, the AP corresponding to each AP of the available hotspot 2.0 access network And accessing the network characteristic information, and sending, by the hotspot 2.0 access network response message, the access network characteristic information corresponding to each AP to the ANDSF.
  • the access network characteristic information acquired by the access network characteristic information query requesting module to the APs includes one or any combination of the following characteristic information:
  • Access network charging identifier which indicates that the access network is free or charged
  • the access network accesses the Internet identity, which indicates that the access network can access or cannot access the Internet; the access network wireless LAN WLAN link condition, which indicates the link state of the access network currently connected to the WAN link of the wide area network , uplink speed, downlink speed, and uplink load;
  • the access network band identifier which indicates the frequency band of the access network is 2.4 GHz GHz or 5 GHz.
  • the embodiment of the present invention further provides an apparatus for discovering and selecting a hotspot 2.0 access network, which is applied to an access point AP, where the apparatus includes:
  • the access network characteristic information query response module is configured to: receive the hotspot 2.0 of the basic service set identifier BSSID, the homogeneous extended service set identifier HESSID, and/or the service set identifier SSID sent by the advertisement server, including the AP
  • the access network characteristic information corresponding to the AP is returned to the advertisement server by using a hotspot 2.0 access network response message.
  • the access network characteristic information query response module returns the access network characteristic information corresponding to the AP of the advertisement server, and includes one or any combination of the following characteristic information:
  • Access network charging identifier which indicates that the access network is free or charged
  • the access network accesses the Internet identity, which indicates that the access network can access or cannot access the Internet; the access network wireless LAN WLAN link condition, which indicates the link state of the access network currently connected to the WAN link of the wide area network , uplink speed, downlink speed, and uplink load;
  • the access network band identifier which indicates the frequency band of the access network is 2.4 GHz or 5 GHz.
  • the embodiment of the present invention further provides an apparatus for discovering and selecting a hotspot 2.0 access network, which is applied to a user equipment UE, where the apparatus includes:
  • An access network discovery module is configured to: send an access network request message to the access network discovery and selection function ANDSF, where the access network request message includes location information of the UE, hotspot 2.0 capability, and desired connection Network access characteristics information;
  • An access network selection module configured to: receive an access network response message returned by the ANDSF, and according to an inter-system mobility policy or an inter-system routing policy in the access network response message, and an access network discovery information The access network characteristic information included in the selection, the selection and switching of the target access network, or the flow routing.
  • the access network discovery module is configured to send an access network request message to the ANDSF in the following manner:
  • the access network selection module is configured to perform, according to the inter-system mobility policy or the inter-system routing policy in the access network response message, and the access network characteristic information included in the access network discovery information, according to the following manner: Selecting and switching the target access network, or performing flow routing: when receiving the access network response message returned by the ANDSF, according to the inter-system mobility policy included in the access network response message,
  • the access network characteristic information included in the network access discovery information is used for selecting and switching the target access network, wherein the target access network is jointly identified by the access network characteristic information and the service set identifier SSID.
  • the access network discovery module is configured to send an access network request message to the ANDSF in the following manner:
  • the access network selection module is configured to perform, according to the inter-system mobility policy or the inter-system routing policy in the access network response message, and the access network characteristic information included in the access network discovery information, according to the following manner: Selecting and switching the target access network, or performing flow routing: receiving the access network response message returned by the ANDSF, according to the inter-system routing policy included in the access network response message, and accessing
  • the network access information includes the access network characteristic information, and performs flow routing, where the target access network of the flow is jointly identified by the access network characteristic information and the SSID.
  • the expected access network characteristic information included in the access network request message sent by the access network discovery module to the ANDSF includes one or any combination of the following information:
  • Access network charging identifier which indicates that the access network is free or charged
  • the access network accesses the Internet identity, which indicates that the access network can access or cannot access the Internet; the access network wireless LAN WLAN link condition, which indicates the link state of the access network currently connected to the WAN link of the wide area network , uplink speed, downlink speed, and uplink load;
  • the access network band identifier indicates that the frequency band of the access network is 2.4 GHz or 5 GHz.
  • the embodiment of the invention further provides a system for discovering and selecting a hotspot 2.0 access network, comprising: the device applied to the access network discovery and selection function ANDSF as described above, and/or applied to the advertisement server as described above And a device for the user equipment UE as described in any one of the above, and/or the device applied to the access point AP as described above.
  • the ANDSF can indicate whether the WLAN access network of the UE is charged/free.
  • the current ANDSF management object can indicate to the UE whether the WLAN access network can connect to the Internet;
  • the ANDSF can provide the UE with a link condition that the WLAN access network is currently connected to the Internet, so that the UE can know the link status of the WLAN access network as a backhaul link, for example, whether the link is connected or interrupted. And information such as uplink/downlink speed, so that the UE can select whether to access the WLAN access network;
  • the UE can predict in advance the frequency band used by the AP near its location through the ANDSF.
  • Figure la is a schematic structural diagram of a 3GPP access system and a non-3GPP access system accessing an EPS in the related art;
  • Figure lb is a schematic diagram of an interface between a UE and an ANDSF in the related art
  • FIG. 2 is a schematic flowchart of a method for discovering and selecting a hotspot 2.0 access network according to an embodiment of the present invention
  • FIG. 3 is a flowchart of considering a charging identifier when a UE acquires an inter-system mobility policy and access network discovery information from an ANDSF according to Embodiment 1 of the present invention
  • FIG. 4 is a flowchart of considering a charging identifier when a UE acquires an inter-system routing policy from an ANDSF according to Embodiment 2 of the present invention
  • FIG. 5 is a schematic diagram of an ANDSF acquiring, by an advertisement server, a charging identifier of a hotspot 2.0 access network through an advertisement server according to Embodiment 3 of the present invention
  • FIG. 6 is a flowchart of a method for considering access to an Internet identifier when a UE acquires an inter-system mobility policy and access network discovery information from an ANDSF according to Embodiment 4 of the present invention
  • FIG. 7 is a flowchart of considering access to an Internet identifier when a UE acquires an inter-system routing policy from an ANDSF according to Embodiment 5 of the present invention
  • FIG. 8 is a schematic diagram of an ANDSF acquiring an access Internet identifier of a hotspot 2.0 access network to an access point through an advertisement server according to Embodiment 6 of the present invention
  • FIG. 9 is a schematic diagram of an ANDSF acquiring, by an advertisement server, an address of a hotspot 2.0 access network currently connected to the Internet through an advertisement server according to Embodiment 7 of the present invention, and transmitting the link to the UE;
  • FIG. 10 is a flowchart of a frequency band used by a hotspot 2.0 access network when a UE acquires an inter-system mobility policy and access network discovery information from an ANDSF according to Embodiment 8 of the present invention
  • FIG. 11 is a flowchart of a frequency band used by a hotspot 2.0 access network when a UE acquires an inter-system routing policy from an ANDSF according to Embodiment 9 of the present invention
  • FIG. 12 is a schematic diagram of an ANDSF acquiring, by an advertisement server, a frequency band used by a hotspot 2.0 access network by an advertisement server according to Embodiment 10 of the present invention, and transmitting the frequency band to the UE;
  • FIG. 13 is a schematic block diagram showing the structure of a system for discovering and selecting a hotspot 2.0 access network according to an embodiment of the present invention. Preferred embodiment of the invention
  • This embodiment provides a method for discovering and selecting a hotspot 2.0 access network. As shown in FIG. 2, the method includes the following steps:
  • Step 201 The UE sends an access network request message to the ANDSF, where the access network request message includes the location information of the UE, the hotspot 2.0 capability, and the expected access network characteristic information.
  • Step 202 The ANDSF returns an access network response message to the UE, where the access network response message includes an inter-system mobility policy or an inter-system routing policy, and access network discovery information, and the inter-system mobility policy or inter-system response information
  • the routing policy, and the access network discovery information includes access network characteristic information.
  • the access network characteristic information includes one or a combination of any of the following information: Access network charging identifier, which indicates that the access network is free or charged;
  • the access network accesses the Internet identifier, which indicates that the access network can access or cannot access the Internet; and the WLAN link of the access network indicates the link state and uplink of the access network currently connected to the WAN link. Road speed, downlink speed, uplink load;
  • the access network band identifier which indicates the frequency band of the access network is 2.4 GHz or 5 GHz.
  • a method for the UE to consider whether the WLAN is charged when the inter-system mobility policy and the access network discovery information are acquired by the UE is described.
  • Step 301 The ANDSF manages the location information extension of the object, and adds a desired access network charging identifier.
  • the expected access network charging identifier may have a value range of 0-1, where 0 indicates that the desired access is free.
  • a WLAN access network, 1 indicates a WLAN access network that is expected to access charging.
  • Step 302 The ANDSF manages an inter-system mobility policy extension, and preferably adds a charging identifier under the access node.
  • the charging identifier may be in the range of 0-1, 0 means that the access to the WLAN access network is free, and 1 means that the WLAN access network is charged.
  • Step 303 The ANDSF sorts the priority of the access network in the inter-system mobility policy, and increases consideration of the charging identifier.
  • the access identifier, the charging identifier, and the access network priority obtains the order of the preferred access.
  • the priority of the access network in the policy is: When the access technology is WLAN, the access identifier is SSID1, and the charging identifier is charging, and the corresponding access is The priority of the network is 2; when the access technology is WLAN, the access identifier is SSID2, the accounting identifier is free, and the corresponding access network priority is 1.
  • the access identifier and the charging identifier are combined, and the preferred access order obtained by the combination is a free WLAN access network, preferably a billing WLAN access network.
  • the access network priority obtained by the access technology and the access identifier, and the access network priority obtained according to the access technology, the access identifier, and the charging identifier shall be subject to a finer granularity.
  • Step 304 The ANDSF management object access network discovery information is extended, and the charging identifier is added under the WLAN location node of the access network area node.
  • Step 305 The UE determines that a non-3GPP handover is initiated.
  • Step 306 The UE sends an access network request message to the ANDSF, and carries the location information of the UE, the hotspot 2.0 capability, and the expected access network charging identifier added in the embodiment of the present invention.
  • Step 307 The ANDSF sends an access network response message to the UE, where the access network response information includes an inter-system mobility policy and an access network discovery information, where, in the embodiment of the present invention, the hotspot of the UE is determined in step 306.
  • the inter-system mobility policy adds a charging identifier
  • the access network discovery information adds a charging identifier.
  • the way in which the UE triggers the acquisition policy and the access network discovery information is a pull (PULL) mode.
  • the ANDSF may also use the Push (PUSH) mode to actively send inter-system mobility policies and access network information to the UE.
  • PUSH Push
  • Step 308 The UE performs a target access network selection and a handover decision according to the received access network response information, where the target access network is jointly identified according to the WLAN charging identifier and the SSID, that is, the access network characteristic information is in addition to the SSID. Also includes the WLAN charging ID.
  • Step 309 The UE performs a non-3GPP system handover procedure.
  • a method for considering a charging identifier when a UE supporting a multiple access technology acquires an inter-system routing policy from an ANDSF is described in this embodiment. As shown in FIG. 4, the steps included in the method of this embodiment are described as follows:
  • Step 401 The ANDSF manages the inter-system routing policy extension, and adds a charging identifier leaf under the routing rule node.
  • Step 402 The ANDSF sorts the priority of the access network in the inter-system routing policy, and increases the consideration of the charging identifier.
  • the access identifier, the charging identifier, and the access network priority are sorted. For example, if the user wants to access the free WLAN access network, the priority of the access network in the policy is: When the access technology is WLAN, the access identifier is SSID1, and the charging identifier is charging, and the corresponding access is The priority of the network is 2; when the access technology is WLAN, the access identifier is SSID2, the accounting identifier is free, and the corresponding access network priority is 1. In this example, in combination with the access technology, the access identifier, and the charging identifier, the combined routing rule order is free.
  • the WLAN access network is preferably a billing WLAN access network.
  • the access network priority obtained by the access technology and the access identifier, and the access network priority obtained according to the access technology, the access identifier, and the charging identifier shall be subject to a finer granularity.
  • Step 403 The UE initiates a multiple access connection such as a stream migration, a multiple access PDN connection, or a slotted WLAN offload, and the ANDSF is found.
  • a multiple access connection such as a stream migration, a multiple access PDN connection, or a slotted WLAN offload
  • Step 404 The UE sends an access network request message to the ANDSF, and carries the location information of the UE, the hotspot 2.0 capability, and the expected access network charging identifier.
  • Step 405 The ANDSF sends an access network response message to the UE, where the access network response information includes an inter-system routing policy, where, in the embodiment of the present invention, the hotspot 2.0 capability of the UE in step 404 indicates that the UE has the next generation support When the capability of the hotspot and the expected access network charging identifier are carried, the inter-system routing policy adds a charging identifier.
  • This way of triggering the acquisition policy by the UE is the PULL mode.
  • the ANDSF may also use the PUSH mode to actively send an inter-system routing policy to the UE.
  • Step 406 The UE performs flow routing according to the received access network response information, where the flow is The target access network is jointly identified according to the charging identifier of the WLAN and the SSID.
  • Step 407 The UE performs other multiple access connections, such as a stream migration, a multiple access PDN connection, or a slotted WLAN offload, according to the selected flow route.
  • other multiple access connections such as a stream migration, a multiple access PDN connection, or a slotted WLAN offload, according to the selected flow route.
  • the method in which the ANDSF obtains the charging identifier of the access network from the AP through the advertisement server and delivers it to the UE for priority ordering of the access network is described.
  • Step 501 The UE determines, initiates a non-3GPP handover, and discovers an ANDSF; or, the UE initiates a flow migration, a multiple PDN connection, or other multiple access connection, and the ANDSF is found.
  • Step 502 The UE sends an access network request message to the ANDSF, and carries the location information of the UE, the hotspot 2.0 capability, and the expected access network charging identifier.
  • Step 503 The ANDSF determines that the hotspot 2.0 capability of the message in step 502 indicates that the UE supports the hotspot 2.0, carries the expected access network charging identifier, and the ANDSF searches for the hotspot 2.0 access network available in the vicinity according to the location information.
  • Step 504 The ANDSF sends a hotspot 2.0 access network request message to the advertisement server, where the message includes BSSID1-BSSIDn, and/or HESSID1 ⁇ HESSIDn corresponding to each access point of the available hotspot 2.0 access network in step 503, and / or SSID1 ⁇ SSIDn.
  • n is the number of available hotspot 2.0 access networks that the ANDSF actually queries.
  • Step 505 The advertisement server sends a hotspot 2.0 access network request message to the API, where the message includes BSSID1, HESSID1, and SSID1 of the API.
  • Step 506 The API sends a hotspot 2.0 access network response message to the advertisement server, where the message includes the charging identifier 1.
  • Step 507 The advertisement server sends a hotspot 2.0 access network request message to the APn, where the message includes the BSSIDn, HESSIDn, and SSIDn of the APn. As described in step 504, the advertisement server needs to send a hotspot 2.0 access network request message to all n APs to query its corresponding charging identifier.
  • Step 509 the timer arrives, or the advertisement server collects the charging identifier information of all available hotspot 2.0 access networks. Then, the advertisement server sends back a hotspot 2.0 access network response message to the ANDSF, where the message includes the charging identifier 1 to the charging. Identify n.
  • Step 510 The ANDSF stores charging identifier information of each hotspot 2.0 access network.
  • Step 511 The ANDSF sends an access network response message to the UE. If the UE initiates a non-3GPP handover in step 501, the access network response information includes an inter-system mobility policy, and/or access network discovery information. If, in step 501, the UE initiates a flow migration, multiple For a PDN connection or other multi-access connection, the access network response information includes an inter-system routing policy, and/or access network discovery information. Each of these messages includes a charging identifier corresponding to each access network.
  • the way in which the UE triggers the acquisition of the policy and/or the access network discovery information is the PULL mode.
  • the ANDSF may also use the PUSH mode to actively send policy and/or access network discovery information to the UE.
  • Step 512 If the UE initiates a non-3GPP handover in step 501, the UE performs a target access network selection and handover decision according to the received access network response information. If the UE initiates the flow in step 501, For the migration, multiple PDN connections, or other multiple access connections, the UE performs routing of the flow according to the received access network response information.
  • Step 513 if the UE initiates a non-3GPP handover in step 501, the UE performs a non-3GPP system handover procedure, and switches to the target access network. If, in step 501, the UE initiates a flow migration, a multiple PDN connection, or For other multiple access connections, the UE starts a flow migration, a multiple access PDN connection, or other multiple access connection process according to the selected flow route.
  • a method for the UE to connect to the Internet when accessing the WLAN is considered when the UE acquires the inter-system mobility policy and the access network discovery information from the ANDSF.
  • Step 601 The ANDSF manages the object location information extension, and adds a desired access Internet identifier.
  • the desired access Internet identity may range from 0-1, with 0 indicating that access to the Internet is not desired, and 1 indicating that access to the Internet is desired.
  • Step 602 The ANDSF manages an inter-system mobility policy extension, and preferably accesses an Internet identifier under the access node.
  • the access network identifier may range from 0 to 1, with 0 indicating that access to the WLAN access network cannot access the Internet, and 1 indicating access to the WLAN access network to access the Internet.
  • Step 603 The ANDSF sorts the priority of the access network of the inter-system mobility policy, and increases consideration for accessing the Internet identity.
  • the combination is based on the access technology, the access identity, the access network identity, and the access network priority.
  • the priority of the access network in the policy is: When the access technology is WLAN, the access identifier is SSID1, and the access network identifier is not accessible to the Internet.
  • the corresponding access network has a priority of 2; when the access technology is WLAN, the access identifier is SSID2, and the access network identifier is accessible to the Internet, and the corresponding access network priority is 1.
  • the preferred access order that is combined is that the WLAN access network that is capable of accessing the Internet is preferably a WLAN access network that is not accessible to the Internet.
  • the priority of the access network obtained according to the access technology, the access identifier, and the access Internet identity combination should be more fine-grained.
  • Step 604 The ANDSF management object access network discovery information is extended, and the access network identifier is newly added to the WLAN location node of the access network area node.
  • Step 605 The UE determines that a non-3GPP handover is initiated, and the ANDSF is found.
  • Step 606 The UE sends an access network request message to the ANDSF, and carries the location information of the UE, the hotspot 2.0 capability, and the newly added expected access Internet identifier in the embodiment of the present invention.
  • Step 607 The ANDSF sends an access network response message to the UE, where the access network response information includes an inter-system mobility policy and an access network discovery information, where in the embodiment of the present invention, the hotspot 2.0 capability of the UE is described in step 606. Instruct the UE to have the ability to support next-generation hotspots, and carry desired When the Internet identity is entered, the inter-system mobility policy is newly added to the Internet identity, and the access network discovery information is newly added to the Internet identity.
  • the way in which the UE triggers the acquisition policy and the access network discovery information is the PULL mode.
  • the ANDSF may also use the PUSH mode to actively send an inter-system mobility policy and access network information to the UE.
  • Step 608 The UE performs a target access network selection and a handover decision according to the received access network response information, where the target access network is jointly identified according to the access WLAN identity of the WLAN and the SSID.
  • Step 609 The UE performs a non-3GPP system handover procedure.
  • a method for the UE supporting the multiple access technology to obtain an inter-system routing policy from the ANDSF is considered to consider whether the access to the Internet can be connected to the Internet.
  • Step 701 The ANDSF manages the inter-system routing policy extension, and the access rule node newly adds an Internet identifier.
  • Step 702 The ANDSF sorts the priority of the access network in the inter-system routing policy, and increases consideration for accessing the Internet identity.
  • the access identifier, the access Internet identity, and the access network priority the combination is sorted by routing rules. For example, if a user wants to access a WLAN access network that can access the Internet, the priority of the access network in the policy is: When the access technology is WLAN, the access identifier is SSID1, and the access network identifier is not accessible to the Internet. The corresponding access network has a priority of 2; when the access technology is WLAN, the access identifier is SSID2, and the access network identifier is accessible to the Internet, and the corresponding access network priority is 1.
  • the combined routing rule order is that the WLAN access network capable of accessing the Internet is preferably a WLAN access network that is not accessible to the Internet.
  • the access network priority obtained according to the access technology and the access identifier If there is a conflict between the access network priority obtained according to the access technology and the access identifier and the access network priority obtained according to the access technology, the access identifier, and the access Internet identifier, Then it should be based on access technology, access identity and access to the Internet identity group in a more granular manner.
  • the priority of the access network obtained shall prevail.
  • Step 703 The UE initiates a multiple access connection such as a stream migration, a multiple access PDN connection, or a slotted WLAN offload, and the ANDSF is found.
  • a multiple access connection such as a stream migration, a multiple access PDN connection, or a slotted WLAN offload
  • Step 704 The UE sends an access network request message to the ANDSF, and carries the location information of the UE, the hotspot 2.0 capability, and the expected access to the Internet identifier.
  • Step 705 The ANDSF sends an access network response message to the UE, where the access network response information includes an inter-system routing policy, where in the embodiment of the present invention, the hotspot 2.0 capability of the UE in step 704 indicates that the UE has the next generation hotspot.
  • the inter-system routing policy adds access to the Internet identity.
  • This way of triggering the acquisition policy by the UE is the PULL mode.
  • the ANDSF may also use the PUSH mode to actively send an inter-system routing policy to the UE.
  • Step 706 The UE performs flow routing according to the received access network response information, where the target access network of the flow is jointly identified according to the access Internet identifier of the WLAN and the SSID.
  • Step 707 The UE performs other multiple access connections, such as a stream migration, a multiple access PDN connection, or a slotted WLAN offload, according to the selected flow route.
  • other multiple access connections such as a stream migration, a multiple access PDN connection, or a slotted WLAN offload, according to the selected flow route.
  • the method in which the ANDSF acquires the access Internet identifier of the WLAN access network from the AP through the advertisement server and performs priority ordering of the access network is described.
  • Step 801 The UE determines, initiates a non-3GPP handover, and discovers an ANDSF; or, the UE initiates a flow migration, a multiple PDN connection, or other multiple access connection, and discovers an ANDSF.
  • Step 802 The UE sends an access network request message to the ANDSF, and carries the location information of the UE, the hotspot 2.0 capability, and the expected access to the Internet identifier.
  • Step 803 The ANDSF determines that the hotspot 2.0 capability of the message in step 802 indicates that the UE supports the hotspot 2.0, carries the desired access Internet identifier, and the ANDSF searches for the vicinity according to the location information. Use the hotspot 2.0 access network.
  • Step 804 The ANDSF sends a hotspot 2.0 access network request message to the advertisement server, where the message includes BSSID1-BSSIDn and/or HESSID1 ⁇ HESSIDn corresponding to each access point of the available hotspot 2.0 access network in step 803, and / or SSID1 ⁇ SSIDn.
  • n is the number of available hotspot 2.0 access networks that the ANDSF actually queries.
  • Step 805 The advertisement server sends a hotspot 2.0 access network request message to the API, where the message includes BSSID1, HESSID1, and SSID1 of the API.
  • Step 806 The API sends a hotspot 2.0 access network response message to the advertisement server, where the message includes an access Internet identifier 1.
  • Step 807 The advertisement server sends a hotspot 2.0 access network request message to the APn, where the message includes the BSSIDn, HESSIDn, and SSIDn of the APn. As described in step 804, the advertisement server needs to send a hotspot 2.0 access network request message to all n APs to query its corresponding access Internet identifier.
  • Step 808 The APn sends a hotspot 2.0 access network response message to the advertisement server, and the message includes an access Internet identifier n.
  • Step 809 the timer arrives, or the advertisement server collects the access Internet identification information of all available hotspot 2.0 access networks. Then, the advertisement server sends back a hotspot 2.0 access network response message to the ANDSF, where the message includes the access Internet identifier 1 ⁇ Access to the Internet identity n.
  • Step 810 The ANDSF stores access identifier information of each hotspot 2.0 access network.
  • Step 811 The ANDSF sends an access network response message to the UE. If in step 801,
  • the access network response information includes an inter-system mobility policy, and/or access network discovery information. If, in step 801, the UE initiates a flow migration, multiple PDN connections, or other multiple connections. In the incoming connection, the access network response information includes an inter-system routing policy, and/or access network discovery information. These messages contain the access Internet identifier corresponding to each WLAN access network.
  • the way in which the UE triggers the acquisition of the policy and/or the access network discovery information is the PULL mode.
  • the ANDSF may also use the PUSH mode to actively send policy and/or access network discovery information to the UE.
  • Step 812 if the UE initiates a non-3GPP handover in step 801, the UE root According to the received access network response information, the target access network selection and the handover decision are performed; if the UE initiates a flow migration, a multiple PDN connection, or other multiple access connection in step 801, the UE receives the Access the network response information to perform routing of the flow.
  • Step 813 If the UE initiates a non-3GPP handover in step 801, the UE performs a non-3GPP system handover procedure, and switches to the target access network. If, in step 801, the UE initiates a flow migration, a multiple PDN connection, or For other multiple access connections, the UE starts a flow migration, a multiple access PDN connection, or other multiple access connection process according to the selected flow route.
  • Step 901 The UE determines, initiates a non-3GPP handover, and discovers an ANDSF; or, the UE initiates a flow migration, a multiple PDN connection, or other multiple access connection, and the ANDSF is found.
  • Step 902 The UE sends an access network request message to the ANDSF, and carries the location information of the UE, the hotspot 2.0 capability, and the identifier of the WAN link condition that is expected to be acquired.
  • Step 903 The ANDSF determines that the hotspot 2.0 capability of the message in step 902 indicates that the UE supports the hotspot 2.0, carries the identifier of the WAN link condition that is expected to be acquired, and the ANDSF searches for the hotspot 2.0 access network available nearby according to the location information.
  • Step 904 The ANDSF sends a hotspot 2.0 access network request message to the advertisement server, where the message includes BSSID1-BSSIDn, and/or HESSID1 ⁇ HESSIDn corresponding to each access point of the available hotspot 2.0 access network in step 903, and / or SSID1 ⁇ SSIDn.
  • n is the number of available hotspot 2.0 access networks that the ANDSF actually queries.
  • Step 905 The advertisement server sends a hotspot 2.0 access network request message to the API, where the message includes BSSID1, HESSID1, and SSID1 of the API.
  • Step 906 the API sends back a hotspot 2.0 access network response message to the advertisement server, where the message includes a link state 1, an uplink speed 1, a downlink speed 1, and an uplink load 1.
  • the link state ranges from 0-1 to 0, indicating that the link is down, and 1 indicates that the link is connected. Where uplink speed and downlink speed are measured in kbps;
  • the uplink load is 100% with a load of 255, and is linearly measured according to this ratio.
  • the AP does not know the load of the uplink, its value is 0.
  • Step 907 The advertisement server sends a hotspot 2.0 access network request message to the APn, where the message includes the BSSIDn, HESSIDn, and SSIDn of the APn. As described in step 904, the advertisement server needs to send a hotspot 2.0 access network request message to all of the n APs to query the corresponding WLAN link.
  • Step 908 The APn sends a hotspot 2.0 access network response message to the advertising server, where the message includes a link state n, an uplink speed n, a downlink speed n, and an uplink load n.
  • Step 909 the timer arrives, or the advertisement server collects all available hotspots of the 2.0 access network.
  • the advertisement server sends back a Hotspot 2.0 access network response message to the ANDSF, where the message includes BSSID1 ⁇ BSSIDn, link state 1 to link state n, uplink speed 1 to uplink speed n. , downlink speed 1 to downlink speed n, and uplink load 1 to uplink load n.
  • Step 910 The ANDSF stores the BSSID-based WAN link situation information of each hotspot 2.0 access network, adds it to the extended ISMP, ISRP, and access network discovery information, and performs access based on the BSSID and the WAN link condition. Network priority ordering.
  • Step 911 The ANDSF sends an access network response message to the UE. If the UE initiates a non-3GPP handover in step 901, the access network response information includes an inter-system mobility policy, and/or access network discovery information. If, in step 901, the UE initiates a flow migration, multiple For a PDN connection or other multi-access connection, the access network response information includes an inter-system routing policy, and/or access network discovery information. These messages contain the BSSID of each WLAN access network, the link status corresponding to the WAN link, the uplink speed, the downlink speed, and the uplink load.
  • the way in which the UE triggers the acquisition of the policy and/or the access network discovery information is the PULL mode.
  • the ANDSF may also use the PUSH mode to actively send policy and/or access network discovery information to the UE.
  • Step 912 if the UE initiates a non-3GPP handover in step 901, the UE performs a target access network selection and handover decision according to the received access network response information; In step 901, the UE initiates a flow migration, a multiple PDN connection, or other multiple access connection, and then the UE performs routing of the flow according to the received access network response information.
  • Step 913 if the UE initiates a non-3GPP handover in step 901, the UE performs a non-3GPP system handover procedure, and switches to the target access network. If, in step 901, the UE initiates a flow migration, multiple PDN connection, or For other multiple access connections, the UE starts a flow migration, a multiple access PDN connection, or other multiple access connection process according to the selected flow route.
  • Step 1001 The ANDSF manages the location information extension of the object, and adds the desired access frequency band identifier.
  • the desired access frequency band identifier may be in the range of 0-1, where 0 indicates that the desired frequency band is 2.4 GHz, and 1 indicates that the desired frequency band is 5 GHz.
  • Step 1002 The ANDSF manages an inter-system mobility policy extension, and preferably adds a frequency band identifier under the access node.
  • the frequency band identifier may be in the range of 0-1, where 0 indicates that the hotspot 2.0 access network has a frequency band of 2.4 GHz, and 1 indicates that the hotspot 2.0 access network has a frequency band of 5 GHz.
  • Step 1003 The ANDSF sorts the priority of the access network in the inter-system mobility policy, and increases consideration of the frequency band identifier.
  • the access identifier, the frequency band identifier, and the access network priority obtains the order of the preferred access.
  • the user wants to access the hotspot 2.0 access network with a frequency band of 2.4 GHz.
  • the priority of the access network in the policy is: When the access technology is WLAN, the access identifier is SSID1, and the frequency band identifier indicates the hotspot 2.0 access.
  • the frequency band of the network is 5 GHz, and the corresponding access network priority is 2; when the access technology is WLAN, the access identifier is SSID2, and the frequency band identifier indicates that the frequency band of the hotspot 2.0 access network is 2.4 GHz, and the corresponding access is
  • the network priority is 1.
  • the preferred access order obtained by the combination is that the WLAN access network with a frequency band of 2.4 GHz is preferably a WLAN access network with a frequency band of 5 GHz. If, according to the priority of the access network acquired by the access technology and the access identifier, and the priority of the access network obtained according to the combination of the access technology, the access identifier, and the frequency band identifier, a conflict occurs between the two, The priority of the access network obtained according to the access technology, the access identifier, and the frequency band identifier combination is more fine-grained.
  • Step 1004 the ANDSF management object access network discovery information extension, access network area node
  • Step 1005 The UE determines that a non-3GPP handover is initiated, and the ANDSF is found.
  • Step 1006 The UE sends an access network request message to the ANDSF, and carries the location information of the UE, the hotspot 2.0 capability, and the newly added expected access band identifier in the embodiment of the present invention.
  • the ANDSF sends an access network response message to the UE, where the access network response information includes an inter-system mobility policy and an access network discovery information, where in the embodiment of the present invention, the hotspot 2.0 capability of the UE is determined in step 1006.
  • the UE is instructed to support the next-generation hotspot, and when the desired access band identifier is carried, the inter-system mobility policy adds a frequency band identifier, and the access network discovery information adds a frequency band identifier.
  • the way in which the UE triggers the acquisition policy and the access network discovery information is the PULL mode.
  • the ANDSF may also use the PUSH mode to actively send an inter-system mobility policy and access network information to the UE.
  • Step 1008 The UE performs a target access network selection and a handover decision according to the received access network response information, where the target access network is jointly identified according to the WLAN frequency band identifier and the SSID.
  • Step 1009 The UE performs a non-3GPP system handover procedure.
  • Step 1101 The ANDSF manages the inter-system routing policy extension, and adds a frequency band identifier under the routing rule node.
  • Step 1102 The ANDSF sorts the priority of the access network in the inter-system routing policy, and increases the consideration of the frequency band identifier.
  • the access identifier, the frequency band identifier, and the access network priority are sorted.
  • the user wants to access the hotspot 2.0 access network with a frequency band of 2.4 GHz.
  • the priority of the access network in the policy is: When the access technology is WLAN, the access identifier is SSID1, and the frequency band identifier indicates the hotspot 2.0 access.
  • the frequency band of the network is 5 GHz, and the corresponding access network priority is 2; when the access technology is WLAN, the access identifier is SSID2, and the frequency band identifier indicates that the frequency band of the hotspot 2.0 access network is 2.4 GHz, and the corresponding access is
  • the network priority is 1.
  • the combined routing rule order is that the WLAN access network with a frequency band of 2.4 GHz is preferably a WLAN access network with a frequency band of 5 GHz.
  • the priority of the access network obtained according to the access technology, the access identifier, and the frequency band identifier combination is more fine-grained.
  • Step 1103 The UE initiates a multiple access connection such as a stream migration, a multiple access PDN connection, or a slotted WLAN offload, and an ANDSF is found.
  • a multiple access connection such as a stream migration, a multiple access PDN connection, or a slotted WLAN offload, and an ANDSF is found.
  • Step 1104 The UE sends an access network request message to the ANDSF, and carries the location information of the UE, the hotspot 2.0 capability, and the expected access frequency band identifier.
  • Step 1105 The ANDSF sends an access network response message to the UE, where the access network response information includes an inter-system routing policy, where in the embodiment of the present invention, the hotspot 2.0 capability of the UE in step 1104 indicates that the UE has the next generation hotspot.
  • the inter-system routing policy adds a band identifier.
  • This way of triggering the acquisition policy by the UE is the PULL mode.
  • the ANDSF may also use the PUSH mode to actively send an inter-system routing policy to the UE.
  • Step 1106 The UE performs flow routing according to the received access network response information, and the target access network of the flow is jointly identified according to the frequency band identifier of the WLAN and the SSID.
  • Step 1107 the UE performs flow migration, multiple access PDN connection, or according to the selected flow route.
  • Other multi-access connections such as WLAN splits with seams.
  • the method in which the ANDSF acquires the frequency band identifier of the WLAN access network from the AP through the advertisement server and performs priority ordering of the access network is described.
  • Step 1201 The UE determines, initiates a non-3GPP handover, and discovers an ANDSF; or, the UE initiates a flow migration, a multiple PDN connection, or other multiple access connection, and discovers an ANDSF.
  • Step 1202 The UE sends an access network request message to the ANDSF, and carries the location information of the UE, the hotspot 2.0 capability, and the expected access frequency band identifier.
  • Step 1203 The ANDSF determines that the hotspot 2.0 capability of the message in step 1202 indicates that the UE supports the hotspot 2.0, carries the desired access band identifier, and the ANDSF searches for the hotspot 2.0 access network available in the vicinity according to the location information.
  • Step 1204 The ANDSF sends a hotspot 2.0 access network request message to the advertisement server, where the message includes BSSID1-BSSIDn, and/or HESSID1 ⁇ HESSIDn corresponding to each access point of the available hotspot 2.0 access network in step 1203, and / or SSID1 ⁇ SSIDn.
  • n is the number of available hotspot 2.0 access networks that the ANDSF actually queries.
  • Step 1205 The advertisement server sends a hotspot 2.0 access network request message to the API, where the message includes BSSID1, HESSID1, and SSID1 of the API.
  • Step 1206 the API sends a hotspot 2.0 access network response message to the advertisement server, where the message includes the frequency band identifier 1.
  • Step 1207 The advertisement server sends a hotspot 2.0 access network request message to the APn, where the message includes the BSSIDn, HESSIDn, and SSIDn of the APn. As described in step 1204, the advertisement server needs to send a hotspot 2.0 access network request message to all n APs to query its corresponding frequency band identifier.
  • Step 1208 The APn sends a hotspot 2.0 access network response message to the advertisement server, where the message includes the frequency band identifier n.
  • the timer expires, or the advertisement server collects the frequency band identification information of all available hotspot 2.0 access networks, and then the advertisement server sends a hotspot 2.0 access network response message to the ANDSF, where the message includes the frequency band identifier 1 to the frequency band identifier n.
  • Step 1210 The ANDSF stores the frequency band identification information of each hotspot 2.0 access network.
  • Step 1211 The ANDSF sends an access network response message to the UE. If in step 1201,
  • the access network response information includes an inter-system mobility policy, and/or access network discovery information. If, in step 1201, the UE initiates a flow migration, multiple PDN connections, or other multiple connections. In the incoming connection, the access network response information includes an inter-system routing policy, and/or an access network discovery information. These messages contain the band identifiers corresponding to each WLAN access network.
  • the way in which the UE triggers the acquisition of the policy and/or the access network discovery information is the PULL mode.
  • the ANDSF may also use the PUSH mode to actively send policy and/or access network discovery information to the UE.
  • Step 1212 If the UE initiates a non-3GPP handover in step 1201, the UE performs a target access network selection and handover decision according to the received access network response information. If the UE initiates the flow in step 1201, For migration, multiple PDN connections, or other multiple access connections, the UE performs routing of the flow according to the received access network response information.
  • Step 1213 if the UE initiates a non-3GPP handover in step 1201, the UE performs a non-3GPP system handover procedure, and switches to the target access network. If, in step 1201, the UE initiates a flow migration, multiple PDN connection, or For other multiple access connections, the UE starts a flow migration, a multiple access PDN connection, or other multiple access connection process according to the selected flow route.
  • the embodiment of the present invention further provides an apparatus for discovering and selecting a hotspot 2.0 access network, which is applied to an ANDSF.
  • the apparatus mainly includes an access network characteristic information management module 1311 and an access network characteristic.
  • Information delivery module 1312 wherein:
  • the access network characteristic information management module 1311 is configured to: maintain the access network characteristic information; and the access network characteristic information transmitting module 1312 is configured to: receive the location information, the hotspot 2.0 capability, including the UE, sent by the UE Returning an access network response message to the UE when the access network request message of the access network characteristic information is requested, where the access network response message is encapsulated
  • the inter-system mobility policy or the inter-system routing policy, and the access network discovery information, and the inter-system mobility policy or the inter-system routing policy, and the access network discovery information includes the access network characteristic information .
  • the access network characteristic information maintained by the access network characteristic information management module 1311 includes one or any combination of the following characteristic information:
  • Access network charging identifier which indicates that the access network is free or charged
  • the access network accesses the Internet identifier, which indicates that the access network can access or cannot access the Internet; and the WLAN link of the access network indicates the link state and uplink of the access network currently connected to the WAN link. Road speed, downlink speed, uplink load;
  • the access network band identifier which indicates the frequency band of the access network is 2.4 GHz or 5 GHz.
  • the access network characteristic information delivery module 1312 is configured to return an access network response message to the UE in the following manner:
  • the access network characteristic information delivery module 1312 is configured to return an access network response message to the UE in the following manner:
  • the access network characteristic information corresponding to the AP, and the access network characteristic information corresponding to each AP is sent to the UE by using the access network response message.
  • the access network characteristic information delivery module 1312 is configured to acquire access network characteristic information corresponding to each AP by using an advertisement server to each AP of the available HS 2.0 access network by using an advertisement server:
  • Hotspot 2.0 access network request message includes a BSSID corresponding to each AP of the available hotspot 2.0 access network, and/or HESSID, and / or SSID;
  • the embodiment of the present invention further provides an apparatus for discovering and selecting a hotspot 2.0 access network, which is applied to an advertisement server.
  • the apparatus mainly includes:
  • the access network characteristic information query requesting module 1321 is configured to: receive a hotspot 2.0 access network that includes an BSSID, and/or a HESSID, and/or an SSID corresponding to each AP of the available hotspot 2.0 access network sent by the ANDSF. And acquiring, by the APs of the available hotspot 2.0 access network, the access network characteristic information corresponding to each AP, and accessing the access network characteristic information corresponding to each AP by using the hotspot 2.0 A web response message is sent to the ANDSF.
  • the access network characteristic information that the access network characteristic information query requesting module 1321 obtains from the APs includes one or any combination of the following characteristic information:
  • Access network charging identifier which indicates that the access network is free or charged
  • the access network accesses the Internet identifier, which indicates that the access network can access or cannot access the Internet; and the WLAN link of the access network indicates the link state and uplink of the access network currently connected to the WAN link. Road speed, downlink speed, uplink load;
  • the access network band identifier which indicates the frequency band of the access network is 2.4 GHz or 5 GHz.
  • the embodiment of the present invention further provides an apparatus for discovering and selecting a hotspot 2.0 access network, which is applied to an AP.
  • the apparatus includes: an access network characteristic information query response module 1331, which is used for Receiving the hotspot 2.0 access network request message corresponding to the AP's BSSID, HESSID, and/or SSID sent by the advertisement server, returning the access network characteristic information corresponding to the AP to the hotspot 2.0 access network response message to the The advertisement server.
  • the access network characteristic information corresponding to the AP returned by the access network characteristic information query response module 1331 to the advertisement server includes one or any combination of the following characteristic information: Access network charging identifier, which indicates that the access network is free or charged;
  • the access network accesses the Internet identifier, which indicates that the access network can access or cannot access the Internet; and the WLAN link of the access network indicates the link state and uplink of the access network currently connected to the WAN link. Road speed, downlink speed, uplink load;
  • the access network band identifier which indicates the frequency band of the access network is 2.4 GHz or 5 GHz.
  • the embodiment of the present invention further provides a device for discovering and selecting a hotspot 2.0 access network, which is applied to a UE.
  • the device mainly includes:
  • An access network discovery module 1341 is configured to: send an access network request message to the ANDSF, where the access network request message includes location information of the UE, hotspot 2.0 capability, and desired access network characteristic information;
  • An access network selection module 1342 configured to: receive an access network response message returned by the ANDSF, and according to an inter-system mobility policy or an inter-system routing policy in the access network response message, and an access network discovery The access network characteristic information included in the information, the selection and switching of the target access network, or the flow routing.
  • the access network discovery module 1341 is configured to send an access network request message to the ANDSF in the following manner:
  • the access network selection module 1342 is configured to: according to the inter-system mobility policy or the inter-system routing policy in the access network response message, and the access network characteristic information included in the access network discovery information, according to the following manner, Performing selection and switching of the target access network, or performing flow routing: when receiving the access network response message returned by the ANDSF, according to the inter-system mobility policy included in the access network response message, and The access network characteristic information included in the access network discovery information is used for selecting and switching the target access network, wherein the target access network is jointly identified by the access network characteristic information and the SSID.
  • the access network discovery module 1341 is configured to send an access network request message to the ANDSF in the following manner: Determining that the UE initiates a flow migration, a multiple PDN connection, or a multiple access connection, and when an ANDSF is found, when acquiring an inter-system routing policy to the ANDSF, sending the access network request message to the ANDSF;
  • the access network selection module 1342 is configured to: according to the inter-system mobility policy or the inter-system routing policy in the access network response message, and the access network characteristic information included in the access network discovery information, according to the following manner, Performing selection and switching of the target access network, or performing flow routing: when receiving the access network response message returned by the ANDSF, according to the inter-system routing policy included in the access network response message,
  • the access network characteristic information included in the network access discovery information is used for flow routing, where the target access network of the flow is jointly identified by the access network characteristic information and the SSID.
  • the expected access network characteristic information included in the access network request message sent by the access network discovery module 1341 to the ANDSF includes one or any combination of the following information:
  • Access network charging identifier which indicates that the access network is free or charged
  • the access network accesses the Internet identifier, which indicates that the access network can access or cannot access the Internet; and the WLAN link of the access network indicates the link state and uplink of the access network currently connected to the WAN link. Road speed, downlink speed, uplink load;
  • the access network band identifier which indicates the frequency band of the access network is 2.4 GHz or 5 GHz.
  • an embodiment of the present invention further provides a system for discovering and selecting a hotspot 2.0 access network, where the system includes the foregoing apparatus applied to an ANDSF, a device applied to an advertisement server, and a device applied to an AP. And the device applied to the UE as described above.
  • the system for discovering and selecting a hotspot 2.0 access network may include any combination of at least one or any combination of the above-described devices for discovering and selecting a hotspot 2.0 access network.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
  • embodiments of the invention are not limited to any specific combination of hardware and software.
  • the UE can obtain related feature information of the hotspot 2.0 access network, and select and access the hotspot 2.0 access network according to the related characteristic information.

Abstract

一种发现和选择热点2.0接入网的方法、装置和系统。所述方法包括:UE向ANDSF发送接入网络请求消息,其中,该接入网络请求消息中包括UE的位置信息、热点2.0能力和期望的接入网特性信息;以及ANDSF向UE返回接入网络响应消息,其中,该接入网络响应消息中包括系统间移动性策略或者系统间路由策略,以及接入网发现信息,且系统间移动性策略或者系统间路由策略,以及接入网发现信息中包含接入网特性信息。

Description

一种发现和选择热点 2.0接入网的方法、 装置和系统
技术领域
本发明涉及移动通信技术领域, 尤其涉及一种发现和选择热点 2.0 ( Hotspot 2.0, 简称为 HS 2.0 )接入网的方法、 装置和系统。
背景技术
为了保持第三代移动通信系统在通信领域的竟争力, 为用户提供速率更 快、 时延更低、 以及更加个性化的移动通信服务, 同时, 降低运营商的运营 标准工作组正致力于演进分组系统( Evolved Packet System, 简称 EPS )的研 究。 整个 EPS分为无线接入网和核心网两部分。 无线接入网分为 3GPP接入 网和非 3GPP接入网。
无线接入网是由演进基站( Evolved NodeB , 简称为 eNB )和第三代( 3rd Generation, 3G )无线网络控制器 ( Radio Network Controller, 简称为 RNC ) 组成, 它主要负责无线信号的收发, 通过空中接口和终端联系, 管理空中接 口的无线资源、 资源调度、 以及接入控制。
在核心网中, 主要包括了归属用户服务器(Home Subscriber Server, 简 称为 HSS )、移动性管理实体( Mobility Management Entity,简称为 MME )、 服务通用分组无线业务支持节点( Serving General Packet Radio Service( GPRS ) Support Node, 简称为 SGSN )、策略计费规则功能( Policy and Charging Rule Function, 简称为 PCRF ) 、 服务网关 ( Serving Gateway, 简称为 S-GW )和 分组数据网络网关( Packet Data Network Gateway,简称为 PDN-GW或 P-GW )。
图 la是 3GPP接入系统和非 3GPP接入系统接入演进的分组核心网 ( Evolved Packet Core, 简称为 EPC ) 的结构示意图。
如图 la所示, EPS支持 3GPP接入。 HSS是用户签约数据的永久存放地 点, 位于用户签约的归属网。 MME 负责移动性管理、 非接入层信令的处理 和用户移动性管理上下文的管理等控制面相关功能。 S-GW是与 3GPP接入 网相连的接入网关设备, 在 3GPP接入和 P-GW之间转发数据, 并对数据进 行緩存。 P-GW是 EPS与分组数据网络( Packet Data Network,简称为 PDN ) 的边界网关,负责 PDN的接入及在 EPS与 PDN之间转发数据等功能。 PCRF 是策略和计费规则功能实体, 其通过接收接口 Rx和运营商业务网络相连, 负责提供计费控制、 在线信用控制、 门限控制、 以及服务质量 ( Quality of Service, 简称为 QoS ) 。 SGSN是全球移动通讯系统 /全球移动通讯系统增强 数据率演进无线接入网络( Global System for Mobile Communications ( GSM ) /Enhanced Data rates for GSM Evolution ( EDGE ) Radio Access Network, GERAN )和通用地面无线接入网( Universal Terrestrial Radio Access Network, UTRAN )用户接入核心网络的业务支持节点, 功能上与 MME类似, 负责用 户的位置更新、 寻呼管理和承载管理等功能。
如图 la所示, EPS也支持非 3GPP接入。 其中, 与非 3GPP接入的互通 通过 S2a/S2b/S2c接口实现,Ρ-GW作为 3GPP接入与非 3GPP接入间的锚点。 非 3GPP接入被分为授信非 3GPP接入和非授信非 3GPP接入。其中,授信非 3GPP接入可直接通过 S2a接口与 P-GW连接, S2a接口釆用代理移动互联网 协议( Proxy Mobile Internet Protocol, 简称为 PMIP )协议进行信息交互。 非 授信非 3GPP接入需经过演进的分组数据网关( Evolved Packet Data Gateway, 简称为 ePDG )与 P-GW相连, ePDG与 P-GW间的接口为 S2b接口。 S2c接 口提供了用户设备( User Equipment , 简称为 UE )与 P-GW之间的用户面控 制以及移动性支持, 其支持的移动性协议为支持双栈的移动 IPv6 ( Mobile IPv6 support for Dual Stack Hosts and Routers, 简称为 DSMIPv6 ) 。
目前, 随着智能终端和移动互联网应用的快速发展, 移动数据流量正在 以难以估量的速度激增。 为了有效緩解流量压力、 持续推动移动通信业务的 发展, 全球越来越多的运营商选择大力发展无线局域网( Wireless Local Area Network,简称为 WLAN ) ,并釆用低成本、高带宽的 WLAN为蜂窝网分流。
接入网发现和选择功能 ( Access Network Discovery and Selection Function, 简称为 ANDSF ) 实体作为接入锚点, 能够实现智能选网, 通过网络与终端 的交互, 实现网络接入的有效分流, 符合未来多网协同的运营方向。 ANDSF 制定策略, 帮助终端用户选择最佳接入的网络制式, 实现多种接入方式的协 同。
相关技术中, ANDSF是在版本 8 ( Release 8, R8 )提出的。 当 UE要选 择网络进行注册时, 如果同时存在 3GPP接入网和非 3GPP接入网, EPS可 以根据 UE当前的位置信息,通过 ANDSF向 UE提供可用的接入网发现信息 或者系统间移动性策略(Inter-System Mobility Policy, 简称为 ISMP ) , UE 使用 ANDSF提供的信息, 选择合适的接入网进行注册。 如果同时存在多个 非 3GPP接入网, EPS可以根据 UE当前的位置信息, 通过 ANDSF向 UE提 供系统间路由策略(Inter-System Routing Policy, 简称为 ISRP ) , UE使用 ANDSF提供的信息, 选择合适的接入网进行分流。 如图 lb 所示, ANDSF 通过 S14接口和 UE相连, 该 S14接口釆用开放移动联盟设备管理(Open Mobile Alliance Device Management, 简称为 OMA DM )协议。
相关技术中, ANDSF能解决 3GPP切换到非 3GPP的接入网选择问题。 也能解决多接入终端的分流路由选择问题, 比如, 具备并激活 IP流迁移能力 的 UE ( IP Flow Mobility capable UE, 简称为 IFOM capable UE ) 、 具备并激 活多接入 PDN连接能力的 UE( Multiple Access PDN Connectivity capable UE , 简称为 MAPCON capable UE ) 、 具备并激活有缝 WLAN分流能力的 UE ( Non-seamless WLAN offload capable UE, 简称为 NSWO capable UE ) 的分 流路由选择问题。
WLAN技术也在持续发展, HS 2.0也称之为下一代热点( Next Generation Hotspot,简称为 NGH ) ,通过广告月良务器( Advertisement Server )由 AP( Access Point, 接入点)向 UE推送与其互通的外部网络信息, 为 WLAN用户提供无 缝漫游、无缝鉴权的能力,使得 WLAN用户具备接近蜂窝网用户的体验和感
ANDSF和热点 2.0技术中的广告服务器可以进行融合,以内置或者外部 接口的方式, 为 UE提供一些热点 2.0接入网的特性信息。 同样地, ANDSF 也可以静态配置热点 2.0接入网的特性信息。所述热点 2.0接入网的特性信息, 在相关技术中图 lb所示的 S14接口上传递。
然而, 相关技术中存在如下问题:
1、 相关技术中的 ANDSF, 在为 UE选择 WLAN接入网时, 不能指示 UE该 WLAN接入网是否计费 /免费。
一般情况下, 举例来说, 麦当劳、 星巴克等场所部署的热点通常是免费 的; 首都机场等场所部署的热点通常是计费的; 而运营商在场所布置的热点 通常都是计费的,但也不排除有试用或者测试期间的免费优惠。 然而,对 UE 来说,掌握其所处位置附近的所有可用热点是否计费 /免费还不可能, ANDSF 管理对象也未能指示 UE该 WLAN接入网是否计费 /免费。
2、 相关技术中的 ANDSF, 在为 UE选择 WLAN接入网时, 不能指示 UE使用该 WLAN接入网是否可以连接到因特网。
ANDSF给 UE发现和选择的 WLAN接入网可能只能连接到局域网, 也 可能可以连接到因特网, 如果 UE期望选择一个可以连接到因特网的 WLAN 接入网, 当前 ANDSF管理对象却未能指示 UE该 WLAN接入网是否可以连 接到因特网。
3、 相关技术中的 ANDSF,在为 UE选择 WLAN接入网时, 不能提供该 WLAN接入网当前连接到因特网的链路情况。
ANDSF给 UE提供的 WLAN接入网如果能够连接到因特网, UE希望了 解该 WLAN接入网作为回程链路(backhaul link ) 的链路情况, 比如, 链路 是连通的还是中断的,以及上行 /下行链路速度等信息,以便 UE能进行选择, 是否接入该 WLAN接入网,但现有的 ANDSF管理对象却不能提供该 WLAN 接入网当前连接到因特网的链路情况。
4、 相关技术中的 ANDSF,在为 UE选择 WLAN接入网时, 不能预先让
UE知道该 WLAN接入网使用的频段。
WLAN接入网和 UE当前可能使用的频段有 2.4吉赫(GHz )和 5GHz 两种, UE和 AP都使用相同的频段才能正确地建立通信。 但现有机制下, UE无法通过 ANDSF提前预知其所处位置附近的 AP所使用的频段。
发明内容
本发明实施例提供一种发现和选择热点 2.0接入网的方法、装置和系统, 使 UE能够获取到热点 2.0接入网的相关信息, 并据此相关信息选择和接入 热点 2.0接入网。
本发明实施例提供了一种发现和选择热点 2.0接入网的方法, 包括: 用户设备 UE向接入网发现和选择功能 ANDSF发送接入网络请求消息, 其中, 所述接入网络请求消息包括所述 UE的位置信息、 热点 2.0能力和期 望的接入网特性信息; 以及
所述 ANDSF向所述 UE返回接入网络响应消息, 其中, 所述接入网络 响应消息包括系统间移动性策略或者系统间路由策略,以及接入网发现信息, 且所述系统间移动性策略或者系统间路由策略, 以及所述接入网发现信息中 包含接入网特性信息。
可选地,所述 UE向 ANDSF发送接入网络请求消息包括: 所述 UE判断 发起了非第三代合作伙伴计划 3GPP 切换、 且发现了 ANDSF 时, 向所述 ANDSF发送所述接入网络请求消息;
所述 ANDSF向所述 UE返回的所述接入网络响应消息包括系统间移动 性策略, 以及接入网发现信息;
所述方法还包括: 所述 UE接收所述系统间移动性策略, 以及所述接入 网发现信息中包含的接入网特性信息, 并进行目标接入网的选择和切换, 其 中, 所述目标接入网由所述接入网特性信息和服务集标识 ( Service Set Identifier, SSID )共同标识。
可选地,所述 UE向 ANDSF发送接入网络请求消息包括: 所述 UE发起 了流迁移、 多分组数据网 (PDN)连接或者多接入连接, 且发现了 ANDSF时, 向所述 ANDSF发送所述接入网络请求消息;
所述 ANDSF向所述 UE返回的所述接入网络响应消息包括系统间路由 策略, 以及接入网发现信息;
所述方法还包括: 所述 UE接收所述系统间路由策略, 以及所述接入网 发现信息中包含的接入网特性信息, 并进行流路由选择, 其中, 流的目标接 入网由所述接入网特性信息和 SSID共同标识。
可选地, 所述 UE的期望的接入网特性信息, 包括下述信息中的一种或 者任意多种的组合: 接入网计费标识, 其标示接入网免费或者计费;
接入网接入因特网标识, 其标示接入网能够接入或者不能接入因特网; 接入网无线局域网 WLAN链路情况 , 其标示接入网当前连接到广域网 ( Wide Area Network, WAN )链路所对应的链路状态、 上行链路速度、 下行 链路速度和上行链路负载; 以及
接入网频段标识, 其标示接入网的频段为 2.4吉赫 GHz或者为 5GHz。 可选地, 所述 ANDSF向所述 UE返回接入网络响应消息包括: 所述 ANDSF维护接入网特性信息, 并基于所述接入网特性信息、 接入 技术、 以及接入标识对所述 ANDSF的系统间移动性策略或者系统间路由策 略中的接入网优先级进行排序; 以及
所述 ANDSF接收到所述接入网络请求消息时, 将所述系统间移动性策 略或者系统间路由策略, 以及所述接入网发现信息通过所述接入网络响应消 息发送给所述 UE。
可选地, 所述 ANDSF向所述 UE返回接入网络响应消息包括: 所述 ANDSF接收到包含所述 UE的位置信息的所述接入网络请求消息 时, 查找附近可用的热点 2.0接入网; 以及
所述 ANDSF通过广告服务器向所述可用的热点 2.0接入网的各接入点 AP获取所述各 AP所对应的接入网特性信息, 并将所述各 AP所对应的接入 网特性信息通过所述接入网络响应消息发送给所述 UE。
可选地, 所述 ANDSF通过广告月良务器向所述可用的热点 2.0接入网的 各 AP获取所述各 AP所对应的接入网特性信息, 包括:
所述 ANDSF向广告服务器发送热点 2.0接入网请求消息, 其中, 所述 热点 2.0接入网请求消息中包括所述可用的热点 2.0接入网的各 AP所对应的 基础服务集标识符( Basic Service Set Identifier, BSSID ) 、 和 /或同质扩展服 务集标识符 ( Homogeneous Extended Service Set Identifier, HE S SID ) 、 和 / 或 SSID; 以及
所述广告服务器向所述各 AP发送热点 2.0接入网请求消息, 并将接收 到的各 AP返回的热点 2.0接入网响应消息中包含的各 AP所对应的接入网特 性信息 , 通过热点 2.0接入网响应消息发送给所述 ANDSF。
本发明实施例还提供了一种发现和选择热点 2.0接入网的装置, 应用于 接入网发现和选择功能 ANDSF, 所述装置包括: 接入网特性信息管理模块 和接入网特性信息传递模块, 其中,
所述接入网特性信息管理模块设置成: 维护接入网特性信息; 以及 所述接入网特性信息传递模块设置成: 接收到用户设备 UE发送的包括 所述 UE的位置信息、 热点 2.0能力和期望的接入网特性信息的接入网络请 求消息时, 向所述 UE返回接入网络响应消息, 其中, 所述接入网络响应消 息中包括系统间移动性策略或者系统间路由策略, 以及接入网发现信息, 且 所述系统间移动性策略或者系统间路由策略, 以及所述接入网发现信息中包 含所述接入网特性信息。
可选地, 所述接入网特性信息管理模块维护的接入网特征信息, 包括下 述特性信息中的一种或者任意多种的组合:
接入网计费标识, 其标示接入网免费或者计费;
接入网接入因特网标识, 其标示接入网能够接入或者不能接入因特网; 接入网无线局域网 WLAN链路情况 , 其标示接入网当前连接到广域网 WAN链路所对应的链路状态、 上行链路速度、 下行链路速度和上行链路负 载; 以及
接入网频段标识, 其标示接入网的频段为 2.4吉赫 GHz或者为 5GHz。 可选地,所述接入网特性信息传递模块是设置成按照以下方式向所述 UE 返回接入网络响应消息:
基于接入技术、 接入标识, 以及所述接入网特性信息管理模块维护的接 入网特性信息对系统间移动性策略或者系统间路由策略中的接入网优先级进 行排序; 及, 接收到所述接入网络请求消息时, 将所述包含所述接入网特性 信息的系统间移动性策略或者系统间路由策略, 以及所述接入网发现信息通 过所述接入网络响应消息发送给所述 UE。
可选地,所述接入网特性信息传递模块是设置成按照以下方式向所述 UE 返回接入网络响应消息: 接收到包含所述 UE的位置信息的所述接入网络请求消息时, 查找附近 可用的热点 2.0接入网;并通过广告服务器向所述可用的热点 2.0接入网的各 接入点 AP获取所述各 AP所对应的接入网特性信息,将所述各 AP所对应的 接入网特性信息通过所述接入网络响应消息发送给所述 UE。
可选地, 所述接入网特性信息传递模块是设置成按照以下方式通过广告 服务器向所述可用的热点 2.0接入网的各 AP获取所述各 AP所对应的接入网 特性信息:
向广告服务器发送热点 2.0接入网请求消息,其中,所述热点 2.0接入网 请求消息中包括所述可用的热点 2.0接入网的各 AP所对应的基础服务集标 识符 BSSID、和 /或同质扩展服务集标识符 HESSID、和 /或服务集标识符 SSID; 以及
接收所述广告服务器发送的热点 2.0接入网响应消息, 获取到所述热点 2.0接入网响应消息中包含的各 AP所对应的接入网特性信息。
本发明实施例还提供了一种发现和选择热点 2.0接入网的装置, 应用于 广告服务器, 所述装置包括:
接入网特性信息查询请求模块, 其设置成: 接收到接入网发现和选择功 能 ANDSF发送的包含可用的热点 2.0接入网的各接入点 AP所对应的基础服 务集标识符 BSSID、和 /或同质扩展服务集标识符 HESSID、和 /或服务集标识 符 SSID的热点 2.0接入网请求消息时, 向所述可用的热点 2.0接入网的各 AP获取所述各 AP所对应的接入网特性信息, 并将所述各 AP所对应的接入 网特性信息通过热点 2.0接入网响应消息发送给所述 ANDSF。
可选地, 所述接入网特性信息查询请求模块向所述各 AP获取的接入网 特性信息, 包括下述特性信息中的一种或者任意多种的组合:
接入网计费标识, 其标示接入网免费或者计费;
接入网接入因特网标识, 其标示接入网能够接入或者不能接入因特网; 接入网无线局域网 WLAN链路情况 , 其标示接入网当前连接到广域网 WAN链路所对应的链路状态、 上行链路速度、 下行链路速度和上行链路负 载; 以及 接入网频段标识 , 其标示接入网的频段为 2.4吉赫 GHz或者为 5GHz。 本发明实施例还提供了一种发现和选择热点 2.0接入网的装置, 应用于 接入点 AP, 所述装置包括:
接入网特性信息查询响应模块, 其设置成: 接收到广告服务器发送的包 含 AP的基础服务集标识符 BSSID、 同质扩展服务集标识符 HESSID、 和 /或 服务集标识符 SSID的热点 2.0接入网请求消息时,将所述 AP所对应的接入 网特性信息通过热点 2.0接入网响应消息返回给所述广告服务器。
可选地, 所述接入网特性信息查询响应模块返回给所述广告服务器的所 述 AP所对应的接入网特性信息, 包括下述特性信息中的一种或者任意多种 的组合:
接入网计费标识, 其标示接入网免费或者计费;
接入网接入因特网标识, 其标示接入网能够接入或者不能接入因特网; 接入网无线局域网 WLAN链路情况 , 其标示接入网当前连接到广域网 WAN链路所对应的链路状态、 上行链路速度、 下行链路速度和上行链路负 载; 以及
接入网频段标识, 其标示接入网的频段为 2.4吉赫 GHz或者为 5GHz。 本发明实施例还提供了一种发现和选择热点 2.0接入网的装置, 应用于 用户设备 UE, 所述装置包括:
接入网发现模块, 其设置成: 向接入网发现和选择功能 ANDSF发送接 入网络请求消息, 其中, 所述接入网络请求消息中包含本 UE的位置信息、 热点 2.0能力和期望的接入网特性信息; 以及
接入网选择模块, 其设置成: 接收所述 ANDSF返回的接入网络响应消 息, 并根据所述接入网络响应消息中的系统间移动性策略或者系统间路由策 略, 以及接入网发现信息中包含的接入网特性信息, 进行目标接入网的选择 和切换、 或者进行流路由选择。
可选地, 所述接入网发现模块是设置成按照以下方式向 ANDSF发送接 入网络请求消息:
判断所述 UE 发起了非第三代合作伙伴计划 3GPP 切换、 且发现了 ANDSF时 , 向所述 ANDSF发送所述接入网络请求消息;
所述接入网选择模块是设置成按照以下方式根据所述接入网络响应消息 中的系统间移动性策略或者系统间路由策略, 以及接入网发现信息中包含的 接入网特性信息, 进行目标接入网的选择和切换、 或者进行流路由选择: 接收到所述 ANDSF返回的所述接入网络响应消息时, 根据所述接入网 络响应消息中包括的系统间移动性策略, 以及接入网发现信息包含的接入网 特性信息, 进行目标接入网的选择和切换, 其中, 所述目标接入网由所述接 入网特性信息和服务集标识符 SSID共同标识。
可选地, 所述接入网发现模块是设置成按照以下方式向 ANDSF发送接 入网络请求消息:
判断所述 UE发起了流迁移、多分组数据网络 PDN连接或者多接入连接, 且发现了 ANDSF时,向所述 ANDSF获取系统间路由策略时,向所述 ANDSF 发送所述接入网络请求消息;
所述接入网选择模块是设置成按照以下方式根据所述接入网络响应消息 中的系统间移动性策略或者系统间路由策略, 以及接入网发现信息中包含的 接入网特性信息, 进行目标接入网的选择和切换、 或者进行流路由选择: 接收到所述 ANDSF返回的所述接入网络响应消息时, 根据所述接入网 络响应消息中包括的系统间路由策略, 以及接入网发现信息包含的接入网特 性信息, 进行流路由选择, 其中, 流的目标接入网由所述接入网特性信息和 SSID共同标识。
可选地, 所述接入网发现模块向 ANDSF发送的所述接入网络请求消息 中包含的期望的接入网特性信息, 包括下述信息中的一种或者任意多种的组 合:
接入网计费标识, 其标示接入网免费或者计费;
接入网接入因特网标识, 其标示接入网能够接入或者不能接入因特网; 接入网无线局域网 WLAN链路情况 , 其标示接入网当前连接到广域网 WAN链路所对应的链路状态、 上行链路速度、 下行链路速度和上行链路负 载; 以及 接入网频段标识 , 其标示接入网的频段为吉赫 2.4GHz或者为 5GHz。 本发明实施例还提供了一种发现和选择热点 2.0接入网的系统, 包括: 如上所述的应用于接入网发现和选择功能 ANDSF的装置, 和 /或如上所述的 应用于广告服务器的装置, 和 /或如上所述的应用于接入点 AP 的装置, 和 / 或如上之任一项所述的应用于用户设备 UE的装置。
综上所述, 本发明实施例提供的一种发现和选择热点 2.0接入网的实现 方案中, 在为 UE选择 WLAN接入网时, ANDSF能够指示 UE该 WLAN接 入网是否计费 /免费;
如果 UE期望选择一个可以连接到因特网的 WLAN接入网,当前 ANDSF 管理对象能够指示 UE该 WLAN接入网是否可以连接到因特网;
ANDSF能够为 UE提供 WLAN接入网当前连接到因特网的链路情况, 使 UE能够了解该 WLAN接入网作为回程链路( backhaul link )的链路情况, 比如, 链路是连通的还是中断的, 以及上行 /下行链路速度等信息, 以便 UE 能进行选择是否接入该 WLAN接入网; 以及
UE可以通过 ANDSF提前预知其所处位置附近的 AP所使用的频段。 附图概述
图 la为相关技术中 3GPP接入系统和非 3GPP接入系统接入 EPS的结构 示意图;
图 lb为相关技术中 UE与 ANDSF的接口示意图;
图 2为本发明实施例提供的发现和选择热点 2.0接入网的方法的流程示 意图;
图 3为本发明实施例 1中 UE向 ANDSF获取系统间移动性策略、 接入 网发现信息时考虑计费标识的流程图;
图 4为本发明实施例 2中 UE向 ANDSF获取系统间路由策略时考虑计 费标识的流程图;
图 5为本发明实施例 3中 ANDSF通过广告服务器向接入点获取热点 2.0 接入网的计费标识并传递给 UE的示意图; 图 6为本发明实施例 4中 UE向 ANDSF获取系统间移动性策略、 接入 网发现信息时考虑接入因特网标识的流程图;
图 7为本发明实施例 5中 UE向 ANDSF获取系统间路由策略时考虑接 入因特网标识的流程图;
图 8为本发明实施例 6中 ANDSF通过广告服务器向接入点获取热点 2.0 接入网的接入因特网标识并传递给 UE的示意图;
图 9为本发明实施例 7中 ANDSF通过广告服务器向接入点获取热点 2.0 接入网当前连接到因特网的链路情况并传递给 UE的示意图;
图 10为本发明实施例 8中 UE向 ANDSF获取系统间移动性策略、 接入 网发现信息时考虑热点 2.0接入网使用的频段的流程图;
图 11为本发明实施例 9中 UE向 ANDSF获取系统间路由策略时考虑热 点 2.0接入网使用的频段的流程图;
图 12为本发明实施例 10中 ANDSF通过广告服务器向接入点获取热点 2.0接入网使用的频段并传递给 UE的示意图;
图 13为本发明实施例中的发现和选择热点 2.0接入网的系统的组成示意 框图。 本发明的较佳实施方式
本实施方式提供一种发现和选择热点 2.0接入网的方法, 如图 2所示, 该方法包括如下步骤:
步骤 201 , UE向 ANDSF发送接入网络请求消息, 该接入网络请求消息 中包括所述 UE的位置信息、 热点 2.0能力和期望的接入网特性信息。
步骤 202 , ANDSF向 UE返回接入网络响应消息 , 该接入网络响应消息 中包括系统间移动性策略或者系统间路由策略, 以及接入网发现信息, 且所 述系统间移动性策略或者系统间路由策略, 以及所述接入网发现信息中包含 接入网特性信息。
其中, 所述的接入网特性信息, 包括下述信息中的一种或者任意多种的 组合: 接入网计费标识, 其标示接入网免费或者计费;
接入网接入因特网标识, 其标示接入网能够接入或者不能接入因特网; 接入网 WLAN链路情况,其标示接入网当前连接到 WAN链路所对应的 链路状态、 上行链路速度、 下行链路速度、 上行链路负载; 以及
接入网频段标识, 其标示接入网的频段为 2.4GHz或者为 5GHz。
为了便于阐述本发明实施方式, 以下将结合附图对本发明实施例的技术 方案作详细描述。 需要说明的是, 在不冲突的情况下, 本申请中的实施例及 实施例中的特征可以相互任意组合。
实施例一
本实施例中描述了 UE向 ANDSF获取系统间移动性策略、 接入网发现 信息时考虑该 WLAN是否计费的方法。
如图 3所示, 本实施例方法包括的步骤描述如下:
步骤 301 , ANDSF管理对象位置信息扩展,新增期望的接入网计费标识。 该期望的接入网计费标识, 取值范围可以为 0-1 , 0表示期望接入免费的
WLAN接入网, 1表示期望接入计费的 WLAN接入网。
步骤 302, ANDSF管理对象系统间移动性策略扩展, 优选接入节点下, 新增计费标识。 该计费标识, 取值范围可以为 0-1 , 0表示接入该 WLAN接入网免费, 1 表示接入该 WLAN接入网计费。
步骤 303 , ANDSF对系统间移动性策略中的接入网的优先级进行排序, 增加对计费标识的考虑。
根据接入技术、 接入标识、 计费标识以及接入网优先级, 组合得到优选 接入的排序。举例来说, 用户希望接入免费的 WLAN接入网, 策略中的接入 网优先级为: 当接入技术为 WLAN, 接入标识为 SSID1 , 计费标识为计费, 其对应的接入网优先级为 2; 当接入技术为 WLAN, 接入标识为 SSID2, 计 费标识为免费,其对应的接入网优先级为 1。在这个例子中,结合接入技术、 接入标识和计费标识 ,组合得到的优选接入次序是免费的 WLAN接入网优选 于计费的 WLAN接入网。
如果,根据接入技术和接入标识获取的接入网优先级,与根据接入技术、 接入标识以及计费标识组合获取的接入网优先级, 这两者之间发生了冲突, 那么应以更细粒度的根据接入技术、 接入标识以及计费标识组合获取的接入 网优先级为准。
步骤 304, ANDSF 管理对象接入网发现信息扩展, 接入网区域节点的 WLAN位置节点下, 新增计费标识。
步骤 305, UE判断发起了非 3GPP切换。
步骤 306, UE向 ANDSF发送接入网络请求消息,带上 UE的位置信息、 热点 2.0能力和本发明实施例中新增的期望的接入网计费标识。
步骤 307 , ANDSF向 UE发送接入网络响应消息, 接入网络响应信息包 含系统间移动性策略和接入网发现信息, 其中, 在本发明实施例中, 当步骤 306所述的 UE的热点 2.0能力指示 UE具备支持下一代热点的能力、携带期 望的接入网计费标识时, 系统间移动性策略新增计费标识, 接入网发现信息 新增计费标识。 这种由 UE触发获取策略和接入网发现信息的方式是拉(PULL )模式。 可选地, ANDSF也可以釆用推(PUSH )模式, 主动向 UE发送系统间 移动性策略和接入网络信息。
步骤 308, UE根据收到的接入网络响应信息, 进行目标接入网络选择和 切换决定, 该目标接入网根据 WLAN的计费标识和 SSID共同标识, 即, 该 接入网特性信息除了 SSID, 还包含 WLAN计费标识。
步骤 309, UE进行非 3GPP系统切换流程。
实施例二
本实施例中描述了支持多接入技术的 UE向 ANDSF获取系统间路由策 略时考虑计费标识的方法。 如图 4所示, 本实施例方法包括的步骤描述如下:
步骤 401 , ANDSF管理对象系统间路由策略扩展, 路由规则节点下新增 计费标识叶子。
步骤 402, ANDSF对系统间路由策略中的接入网的优先级进行排序, 增 加对计费标识的考虑。
根据接入技术、 接入标识、 计费标识以及接入网优先级, 组合得到路由 规则的排序。举例来说, 用户希望接入免费的 WLAN接入网, 策略中的接入 网优先级为: 当接入技术为 WLAN, 接入标识为 SSID1 , 计费标识为计费, 其对应的接入网优先级为 2; 当接入技术为 WLAN, 接入标识为 SSID2, 计 费标识为免费,其对应的接入网优先级为 1。在这个例子中,结合接入技术、 接入标识和计费标识 ,组合得到的路由规则次序是免费的 WLAN接入网优选 于计费的 WLAN接入网。
如果,根据接入技术和接入标识获取的接入网优先级,与根据接入技术、 接入标识以及计费标识组合获取的接入网优先级, 这两者之间发生了冲突, 那么应以更细粒度的根据接入技术、 接入标识以及计费标识组合获取的接入 网优先级为准。
步骤 403 , UE发起流迁移、 多接入 PDN连接或有缝的 WLAN分流等多 接入连接, 且发现了 ANDSF。
步骤 404 , UE向 ANDSF发送接入网络请求消息, 携带上 UE的位置信 息、 热点 2.0能力和期望的接入网计费标识。
步骤 405 , ANDSF向 UE发送接入网络响应消息, 接入网络响应信息包 含系统间路由策略, 其中, 在本发明实施例中, 当步骤 404所述的 UE的热 点 2.0能力指示 UE具备支持下一代热点的能力、 携带期望的接入网计费标 识时 , 系统间路由策略新增计费标识。
这种由 UE触发获取策略的方式是 PULL模式。
可选地, ANDSF也可以釆用 PUSH模式,主动向 UE发送系统间路由策 略。
步骤 406, UE根据收到的接入网络响应信息, 进行流路由选择, 该流的 目标接入网根据 WLAN的计费标识和 SSID共同标识。
步骤 407 , UE根据选择的流路由, 进行流迁移、 多接入 PDN连接、 或 有缝的 WLAN分流等其他多接入连接。
实施例三
本实施例中描述了 ANDSF通过广告服务器向 AP获取接入网的计费标 识并传递给 UE, 进行接入网优先级排序的方法。
如图 5所示, 本实施例方法包括的步骤描述如下:
步骤 501 , UE进行判断, 发起了非 3GPP切换, 且发现了 ANDSF; 或 者, UE发起了流迁移、多 PDN连接或其他多接入连接,且发现了 ANDSF。
步骤 502, UE向 ANDSF发送接入网络请求消息,带上 UE的位置信息、 热点 2.0能力和期望的接入网计费标识。
步骤 503 , ANDSF判断步骤 502中所述消息的热点 2.0能力指示 UE支 持热点 2.0、 携带期望的接入网计费标识, ANDSF根据位置信息查找其附近 可用的热点 2.0接入网。
步骤 504 , ANDSF向广告服务器发送热点 2.0接入网请求消息, 消息中 包含步骤 503 中所述可用热点 2.0 接入网的各接入点所对应的 BSSIDl-BSSIDn, 和 /或 HESSIDl~HESSIDn, 和 /或 SSID1~ SSIDn。 其中 n 表示 ANDSF实际查询到的可用的热点 2.0接入网的数目。
步骤 505 , 广告服务器向 API发送热点 2.0接入网请求消息, 消息中包 含 API的 BSSID1、 HESSID1 , 以及 SSID1。
步骤 506, API 向广告服务器回送热点 2.0接入网响应消息, 消息中包 含计费标识 1。
步骤 507 , 广告服务器向 APn发送热点 2.0接入网请求消息, 消息中包 含 APn的 BSSIDn、 HESSIDn, 以及 SSIDn。 其中 n如步骤 504中所述, 广 告服务器需要向 n个 AP都发送热点 2.0接入网请求消息, 以查询其对应的 计费标识。 步骤 508, APn向广告月良务器回送热点 2.0接入网响应消息, 消息中包 含计费标识 n。
步骤 509,定时器到,或者广告服务器收集齐所有可用热点 2.0接入网的 计费标识信息, 则, 广告服务器向 ANDSF回送热点 2.0接入网响应消息, 消息中包含计费标识 1〜计费标识 n。
步骤 510, ANDSF存储各热点 2.0接入网的计费标识信息。
步骤 511 , ANDSF向 UE发送接入网络响应消息。 如果在步骤 501中, UE发起的是非 3GPP切换, 则, 接入网络响应信息包含系统间移动性策略, 和 /或接入网发现信息; 如果在步骤 501中, UE发起的是流迁移、 多 PDN连 接或其他多接入连接, 则, 接入网络响应信息包含系统间路由策略, 和 /或接 入网发现信息。 这些消息中都包含各接入网所对应的计费标识。
这种由 UE触发获取策略和 /或接入网发现信息的方式是 PULL模式。 可选地, ANDSF也可以釆用 PUSH模式, 主动向 UE发送策略和 /或接 入网发现信息。
步骤 512, 如果在步骤 501中, UE发起的是非 3GPP切换, 则, UE根 据收到的接入网络响应信息, 进行目标接入网络选择和切换决定; 如果在步 骤 501 中, UE发起的是流迁移、 多 PDN连接或其他多接入连接, 则, UE 根据收到的接入网络响应信息, 进行该流的路由选择。
步骤 513 , 如果在步骤 501中, UE发起的是非 3GPP切换, 则, UE进 行非 3GPP系统切换流程, 切换到目标接入网络; 如果在步骤 501中, UE发 起的是流迁移、多 PDN连接或其他多接入连接,则, UE根据选择的流路由, 开始流迁移、 多接入 PDN连接或其他多接入连接过程。
实施例四
本实施例中描述了 UE向 ANDSF获取系统间移动性策略、 接入网发现 信息时考虑接入该 WLAN是否可连接到因特网的方法。
如图 6所示, 本实施例方法包括的步骤描述如下:
步骤 601 , ANDSF管理对象位置信息扩展,新增期望的接入因特网标识。 该期望的接入因特网标识, 取值范围可以为 0-1 , 0表示不期望接入因特 网, 1表示期望接入因特网。
步骤 602, ANDSF管理对象系统间移动性策略扩展, 优选接入节点下, 新增接入因特网标识。
该接入因特网标识, 取值范围可以为 0- 1 , 0表示接入该 WLAN接入网 不能接入因特网, 1表示接入该 WLAN接入网能接入因特网。
步骤 603 , ANDSF对系统间移动性策略的接入网的优先级进行排序, 增 加对接入因特网标识的考虑。
根据接入技术、 接入标识、 接入因特网标识以及接入网优先级, 组合得 到优选接入的排序。举例来说,用户希望接入能接入因特网的 WLAN接入网, 策略中的接入网优先级为: 当接入技术为 WLAN, 接入标识为 SSID1 , 接入 因特网标识为不能接入因特网, 其对应的接入网优先级为 2; 当接入技术为 WLAN, 接入标识为 SSID2, 接入因特网标识为能接入因特网, 其对应的接 入网优先级为 1。 在这个例子中, 结合接入技术、 接入标识和接入因特网标 识,组合得到的优选接入次序是能接入因特网的 WLAN接入网优选于不能接 入因特网的 WLAN接入网。
如果,根据接入技术和接入标识获取的接入网优先级,与根据接入技术、 接入标识以及接入因特网标识组合获取的接入网优先级, 这两者之间发生了 冲突, 那么应以更细粒度的根据接入技术、 接入标识以及接入因特网标识组 合获取的接入网优先级为准。
步骤 604, ANDSF 管理对象接入网发现信息扩展, 接入网区域节点的 WLAN位置节点下, 新增接入因特网标识。
步骤 605, UE判断发起了非 3GPP切换, 且发现了 ANDSF。
步骤 606, UE向 ANDSF发送接入网络请求消息,带上 UE的位置信息、 热点 2.0能力和本发明实施例中新增的期望接入因特网标识。
步骤 607 , ANDSF向 UE发送接入网络响应消息, 接入网络响应信息包 含系统间移动性策略和接入网发现信息,其中在本发明实施例中,当步骤 606 所述的 UE的热点 2.0能力指示 UE具备支持下一代热点的能力、携带期望接 入因特网标识时, 系统间移动性策略新增接入因特网标识, 接入网发现信息 新增接入因特网标识。
这种由 UE触发获取策略和接入网发现信息的方式是 PULL模式。
可选地, ANDSF也可以釆用 PUSH模式,主动向 UE发送系统间移动性 策略和接入网络信息。
步骤 608, UE根据收到的接入网络响应信息, 进行目标接入网络选择和 切换决定, 该目标接入网根据 WLAN的接入因特网标识和 SSID共同标识。
步骤 609, UE进行非 3GPP系统切换流程。
实施例五
本实施例中描述了支持多接入技术的 UE向 ANDSF获取系统间路由策 略时考虑接入该 WLAN是否可连接到因特网的方法。
如图 7所示, 本实施例方法包括的步骤描述如下:
步骤 701 , ANDSF管理对象系统间路由策略扩展, 路由规则节点下新增 接入因特网标识。
步骤 702, ANDSF对系统间路由策略中的接入网的优先级进行排序, 增 加对接入因特网标识的考虑。
根据接入技术、 接入标识、 接入因特网标识以及接入网优先级, 组合得 到路由规则的排序。举例来说,用户希望接入能接入因特网的 WLAN接入网, 策略中的接入网优先级为: 当接入技术为 WLAN, 接入标识为 SSID1 , 接入 因特网标识为不能接入因特网, 其对应的接入网优先级为 2; 当接入技术为 WLAN, 接入标识为 SSID2, 接入因特网标识为能接入因特网, 其对应的接 入网优先级为 1。 在这个例子中, 结合接入技术、 接入标识和接入因特网标 识,组合得到的路由规则次序是能接入因特网的 WLAN接入网优选于不能接 入因特网的 WLAN接入网。
如果,根据接入技术和接入标识获取的接入网优先级,与根据接入技术、 接入标识以及接入因特网标识组合获取的接入网优先级, 这两者之间发生了 冲突, 那么应以更细粒度的根据接入技术、 接入标识以及接入因特网标识组 合获取的接入网优先级为准。
步骤 703 , UE发起流迁移、 多接入 PDN连接或有缝的 WLAN分流等多 接入连接, 且发现了 ANDSF。
步骤 704, UE向 ANDSF发送接入网络请求消息,带上 UE的位置信息、 热点 2.0能力和期望接入因特网标识。
步骤 705 , ANDSF向 UE发送接入网络响应消息, 接入网络响应信息包 含系统间路由策略, 其中在本发明实施例中, 当步骤 704所述的 UE的热点 2.0能力指示 UE具备支持下一代热点的能力、携带期望的接入网接入因特网 标识时, 系统间路由策略新增接入因特网标识。
这种由 UE触发获取策略的方式是 PULL模式。
可选地, ANDSF也可以釆用 PUSH模式,主动向 UE发送系统间路由策 略。
步骤 706, UE根据收到的接入网络响应信息, 进行流路由选择, 该流的 目标接入网根据 WLAN的接入因特网标识和 SSID共同标识。
步骤 707 , UE根据选择的流路由, 进行流迁移、 多接入 PDN连接、 或 有缝的 WLAN分流等其他多接入连接。
实施例六
本实施例中描述了 ANDSF通过广告服务器向 AP获取 WLAN接入网的 接入因特网标识, 并进行接入网优先级排序的方法。
如图 8所示, 本实施例方法包括的步骤描述如下:
步骤 801 , UE进行判断, 发起了非 3GPP切换, 且发现了 ANDSF; 或 者, UE发起了流迁移、多 PDN连接或其他多接入连接,且发现了 ANDSF。
步骤 802, UE向 ANDSF发送接入网络请求消息,带上 UE的位置信息、 热点 2.0能力和期望接入因特网标识。
步骤 803 , ANDSF判断步骤 802中所述消息的热点 2.0能力指示 UE支 持热点 2.0、 携带期望接入因特网标识, ANDSF根据位置信息查找其附近可 用的热点 2.0接入网。
步骤 804 , ANDSF向广告服务器发送热点 2.0接入网请求消息, 消息中 包含步骤 803 中所述可用热点 2.0 接入网的各接入点所对应的 BSSIDl-BSSIDn, 和 /或 HESSIDl~HESSIDn, 和 /或 SSID1~ SSIDn。 其中 n 表示 ANDSF实际查询到的可用的热点 2.0接入网的数目。
步骤 805 , 广告服务器向 API发送热点 2.0接入网请求消息, 消息中包 含 API的 BSSID1、 HESSID1 , 以及 SSID1。
步骤 806, API 向广告服务器回送热点 2.0接入网响应消息, 消息中包 含接入因特网标识 1。
步骤 807 , 广告服务器向 APn发送热点 2.0接入网请求消息, 消息中包 含 APn的 BSSIDn、 HESSIDn, 以及 SSIDn。 其中 n如步骤 804中所述, 广 告服务器需要向 n个 AP都发送热点 2.0接入网请求消息, 以查询其对应的 接入因特网标识。
步骤 808, APn向广告月良务器回送热点 2.0接入网响应消息, 消息中包 含接入因特网标识 n。
步骤 809,定时器到,或者广告服务器收集齐所有可用热点 2.0接入网的 接入因特网标识信息, 则, 广告服务器向 ANDSF回送热点 2.0接入网响应 消息, 消息中包含接入因特网标识 1〜接入因特网标识 n。
步骤 810, ANDSF存储各热点 2.0接入网的接入因特网标识信息。
步骤 811 , ANDSF向 UE发送接入网络响应消息。 如果在步骤 801中,
UE发起的是非 3GPP切换, 则, 接入网络响应信息包含系统间移动性策略, 和 /或接入网发现信息; 如果在步骤 801中, UE发起的是流迁移、 多 PDN连 接或其他多接入连接, 则, 接入网络响应信息包含系统间路由策略, 和 /或接 入网发现信息。这些消息中都包含各 WLAN接入网所对应的接入因特网标识。
这种由 UE触发获取策略和 /或接入网发现信息的方式是 PULL模式。 可选地, ANDSF也可以釆用 PUSH模式, 主动向 UE发送策略和 /或接 入网发现信息。
步骤 812, 如果在步骤 801中, UE发起的是非 3GPP切换, 则, UE根 据收到的接入网络响应信息, 进行目标接入网络选择和切换决定; 如果在步 骤 801 中, UE发起的是流迁移、 多 PDN连接或其他多接入连接, 则, UE 根据收到的接入网络响应信息, 进行该流的路由选择。
步骤 813 , 如果在步骤 801中, UE发起的是非 3GPP切换, 则, UE进 行非 3GPP系统切换流程, 切换到目标接入网络; 如果在步骤 801中, UE发 起的是流迁移、多 PDN连接或其他多接入连接,则, UE根据选择的流路由, 开始流迁移、 多接入 PDN连接或其他多接入连接过程。
实施例七
本实施例中描述了 ANDSF通过广告服务器,向 AP获取热点 2.0接入网 当前连接到因特网 /WAN的链路情况并传递给 UE的方法。
如图 9所示, 本实施例方法包括的步骤描述如下:
步骤 901 , UE进行判断, 发起了非 3GPP切换, 且发现了 ANDSF; 或 者, UE发起了流迁移、多 PDN连接或其他多接入连接,且发现了 ANDSF。
步骤 902, UE向 ANDSF发送接入网络请求消息,带上 UE的位置信息、 热点 2.0能力和期望获取的 WAN链路情况的标识。
步骤 903 , ANDSF判断步骤 902中所述消息的热点 2.0能力指示 UE支 持热点 2.0、 携带期望获取的 WAN链路情况的标识, ANDSF根据位置信息 查找其附近可用的热点 2.0接入网。
步骤 904, ANDSF向广告服务器发送热点 2.0接入网请求消息, 消息中 包含步骤 903 中所述可用热点 2.0 接入网的各接入点所对应的 BSSIDl-BSSIDn, 和 /或 HESSIDl~HESSIDn, 和 /或 SSID1~ SSIDn。 其中 n 表示 ANDSF实际查询到的可用的热点 2.0接入网的数目。
步骤 905 , 广告服务器向 API发送热点 2.0接入网请求消息, 消息中包 含 API的 BSSID1、 HESSID1 , 以及 SSID1。
步骤 906, API 向广告服务器回送热点 2.0接入网响应消息, 消息中包 含链路状态 1、 上行链路速度 1、 下行链路速度 1、 以及上行链路负载 1。
其中链路状态取值范围为 0-1 , 0表示链路中断, 1表示链路连通; 其中上行链路速度、 下行链路速度以 kbps计量;
其中上行链路负载以 255代表负载为 100%, 依此比例线性计量。 当 AP 不知道上行链路的负载时, 其值为 0。
步骤 907 , 广告服务器向 APn发送热点 2.0接入网请求消息, 消息中包 含 APn的 BSSIDn、 HESSIDn, 以及 SSIDn。 其中 n如步骤 904中所述, 广 告服务器需要向 n个 AP都发送热点 2.0接入网请求消息, 以查询其对应的 WLAN链路情况。
步骤 908, APn向广告月良务器回送热点 2.0接入网响应消息, 消息中包 含链路状态 n、 上行链路速度 n、 下行链路速度 n、 以及上行链路负载 n。
步骤 909,定时器到,或者广告服务器收集齐所有可用热点 2.0接入网的
WLAN链路情况的信息, 则, 广告服务器向 ANDSF回送热点 2.0接入网响 应消息, 消息中包含 BSSIDl~BSSIDn、链路状态 1〜链路状态 n、 上行链路速 度 1〜上行链路速度 n、 下行链路速度 1〜下行链路速度 n、 以及上行链路负载 1〜上行链路负载 n。
步骤 910, ANDSF存储各热点 2.0接入网基于 BSSID的 WAN链路情况 信息, 将其加入到扩展的 ISMP、 ISRP、 以及接入网发现信息中, 并进行基 于 BSSID和 WAN链路情况的接入网优先级排序。
步骤 911 , ANDSF向 UE发送接入网络响应消息。 如果在步骤 901中, UE发起的是非 3GPP切换, 则, 接入网络响应信息包含系统间移动性策略, 和 /或接入网发现信息; 如果在步骤 901中, UE发起的是流迁移、 多 PDN连 接或其他多接入连接, 则, 接入网络响应信息包含系统间路由策略, 和 /或接 入网发现信息。 这些消息中都包含各 WLAN接入网的 BSSID、 WAN链路所 对应的链路状态、 上行链路速度、 下行链路速度、 以及上行链路负载。
这种由 UE触发获取策略和 /或接入网发现信息的方式是 PULL模式。 可选地, ANDSF也可以釆用 PUSH模式, 主动向 UE发送策略和 /或接 入网发现信息。
步骤 912, 如果在步骤 901中, UE发起的是非 3GPP切换, 则, UE根 据收到的接入网络响应信息, 进行目标接入网络选择和切换决定; 如果在步 骤 901 中, UE发起的是流迁移、 多 PDN连接或其他多接入连接, 则, UE 根据收到的接入网络响应信息, 进行该流的路由选择。
步骤 913 , 如果在步骤 901中, UE发起的是非 3GPP切换, 则, UE进 行非 3GPP系统切换流程, 切换到目标接入网络; 如果在步骤 901中, UE发 起的是流迁移、多 PDN连接或其他多接入连接,则, UE根据选择的流路由, 开始流迁移、 多接入 PDN连接或其他多接入连接过程。
实施例八
本实施例中描述了 UE向 ANDSF获取系统间移动性策略、 接入网发现 信息时考虑接入该 WLAN频段的方法。
如图 10所示, 本实施例方法包括的步骤描述如下:
步骤 1001 , ANDSF管理对象位置信息扩展,新增期望的接入频段标识。 该期望接入频段标识, 取值范围可以为 0-1 , 0 表示期望接入的频段为 2.4GHz, 1表示期望接入的频段为 5GHz。
步骤 1002, ANDSF管理对象系统间移动性策略扩展,优选接入节点下, 新增频段标识。
该频段标识, 取值范围可以为 0-1 , 0表示该热点 2.0接入网的频段为 2.4GHz, 1表示接入该热点 2.0接入网的频段为 5GHz。
步骤 1003 , ANDSF对系统间移动性策略中的接入网的优先级进行排序, 增加对频段标识的考虑。
根据接入技术、 接入标识、 频段标识以及接入网优先级, 组合得到优选 接入的排序。 举例来说, 用户希望接入频段为 2.4GHz的热点 2.0接入网, 策 略中的接入网优先级为: 当接入技术为 WLAN, 接入标识为 SSID1 , 频段标 识指示该热点 2.0接入网的频段为 5GHz, 其对应的接入网优先级为 2; 当接 入技术为 WLAN, 接入标识为 SSID2, 频段标识指示该热点 2.0接入网的频 段为 2.4GHz, 其对应的接入网优先级为 1。 在这个例子中, 结合接入技术、 接入标识和频段标识, 组合得到的优选接入次序是频段为 2.4GHz的 WLAN 接入网优选于频段为 5GHz的 WLAN接入网。 如果,根据接入技术和接入标识获取的接入网优先级,与根据接入技术、 接入标识以及频段标识组合获取的接入网优先级, 这两者之间发生了冲突, 那么应以更细粒度的根据接入技术、 接入标识以及频段标识组合获取的接入 网优先级为准。
步骤 1004, ANDSF管理对象接入网发现信息扩展, 接入网区域节点的
WLAN位置节点下, 新增频段标识。
步骤 1005, UE判断发起了非 3GPP切换, 且发现了 ANDSF。
步骤 1006, UE向 ANDSF发送接入网络请求消息,带上 UE的位置信息、 热点 2.0能力和本发明实施例中新增的期望接入频段标识。
步骤 1007, ANDSF向 UE发送接入网络响应消息, 接入网络响应信息 包含系统间移动性策略和接入网发现信息, 其中在本发明实施例中, 当步骤 1006所述的 UE的热点 2.0能力指示 UE具备支持下一代热点的能力、 携带 期望接入频段标识时, 系统间移动性策略新增频段标识, 接入网发现信息新 增频段标识。
这种由 UE触发获取策略和接入网发现信息的方式是 PULL模式。
可选地, ANDSF也可以釆用 PUSH模式,主动向 UE发送系统间移动性 策略和接入网络信息。
步骤 1008, UE根据收到的接入网络响应信息, 进行目标接入网络选择 和切换决定, 该目标接入网根据 WLAN的频段标识和 SSID共同标识。
步骤 1009, UE进行非 3GPP系统切换流程。
实施例九
本实施例中描述了支持多接入技术的 UE向 ANDSF获取系统间路由策 略时考虑接入该 WLAN频段的方法。
如图 11所示, 本实施例方法包括的步骤描述如下:
步骤 1101 , ANDSF管理对象系统间路由策略扩展, 路由规则节点下新 增频段标识。 步骤 1102, ANDSF对系统间路由策略中的接入网的优先级进行排序, 增加对频段标识的考虑。
根据接入技术、 接入标识、 频段标识以及接入网优先级, 组合得到路由 规则的排序。 举例来说, 用户希望接入频段为 2.4GHz的热点 2.0接入网, 策 略中的接入网优先级为: 当接入技术为 WLAN, 接入标识为 SSID1 , 频段标 识指示该热点 2.0接入网的频段为 5GHz, 其对应的接入网优先级为 2; 当接 入技术为 WLAN, 接入标识为 SSID2, 频段标识指示该热点 2.0接入网的频 段为 2.4GHz, 其对应的接入网优先级为 1。 在这个例子中, 结合接入技术、 接入标识和频段标识, 组合得到的路由规则次序是频段为 2.4GHz的 WLAN 接入网优选于频段为 5GHz的 WLAN接入网。
如果,根据接入技术和接入标识获取的接入网优先级,与根据接入技术、 接入标识以及频段标识组合获取的接入网优先级, 这两者之间发生了冲突, 那么应以更细粒度的根据接入技术、 接入标识以及频段标识组合获取的接入 网优先级为准。
步骤 1103 , UE发起流迁移、 多接入 PDN连接或有缝的 WLAN分流等 多接入连接, 且发现了 ANDSF。
步骤 1104, UE向 ANDSF发送接入网络请求消息,带上 UE的位置信息、 热点 2.0能力和期望接入频段标识。
步骤 1105, ANDSF向 UE发送接入网络响应消息, 接入网络响应信息 包含系统间路由策略, 其中在本发明实施例中, 当步骤 1104所述的 UE的热 点 2.0能力指示 UE具备支持下一代热点的能力、 携带期望的接入频段标识 时, 系统间路由策略新增频段标识。
这种由 UE触发获取策略的方式是 PULL模式。
可选地, ANDSF也可以釆用 PUSH模式,主动向 UE发送系统间路由策 略。
步骤 1106, UE根据收到的接入网络响应信息, 进行流路由选择, 该流 的目标接入网根据 WLAN的频段标识和 SSID共同标识。
步骤 1107, UE根据选择的流路由, 进行流迁移、 多接入 PDN连接、 或 有缝的 WLAN分流等其他多接入连接。
实施例十
本实施例中描述了 ANDSF通过广告服务器向 AP获取 WLAN接入网的 频段标识, 并进行接入网优先级排序的方法。
如图 12所示, 本实施例方法包括的步骤描述如下:
步骤 1201 , UE进行判断, 发起了非 3GPP切换, 且发现了 ANDSF; 或 者, UE发起了流迁移、多 PDN连接或其他多接入连接,且发现了 ANDSF。
步骤 1202, UE向 ANDSF发送接入网络请求消息,带上 UE的位置信息、 热点 2.0能力和期望接入频段标识。
步骤 1203 , ANDSF判断步骤 1202中所述消息的热点 2.0能力指示 UE 支持热点 2.0、 携带期望接入频段标识, ANDSF根据位置信息查找其附近可 用的热点 2.0接入网。
步骤 1204 , ANDSF向广告服务器发送热点 2.0接入网请求消息, 消息 中包含步骤 1203 中所述可用热点 2.0 接入网的各接入点所对应的 BSSIDl-BSSIDn, 和 /或 HESSIDl~HESSIDn, 和 /或 SSID1~ SSIDn。 其中 n 表示 ANDSF实际查询到的可用的热点 2.0接入网的数目。
步骤 1205, 广告服务器向 API发送热点 2.0接入网请求消息, 消息中包 含 API的 BSSID1、 HESSID1 , 以及 SSID1。
步骤 1206, API向广告服务器回送热点 2.0接入网响应消息, 消息中包 含频段标识 1。
步骤 1207, 广告服务器向 APn发送热点 2.0接入网请求消息, 消息中包 含 APn的 BSSIDn、 HESSIDn, 以及 SSIDn。 其中 n如步骤 1204中所述, 广 告服务器需要向 n个 AP都发送热点 2.0接入网请求消息, 以查询其对应的 频段标识。
步骤 1208 , APn向广告服务器回送热点 2.0接入网响应消息, 消息中包 含频段标识 n。 步骤 1209, 定时器到, 或者广告服务器收集齐所有可用热点 2.0接入网 的频段标识信息,则,广告服务器向 ANDSF回送热点 2.0接入网响应消息, 消息中包含频段标识 1〜频段标识 n。
步骤 1210, ANDSF存储各热点 2.0接入网的频段标识信息。
步骤 1211 , ANDSF向 UE发送接入网络响应消息。如果在步骤 1201中,
UE发起的是非 3GPP切换, 则, 接入网络响应信息包含系统间移动性策略, 和 /或接入网发现信息; 如果在步骤 1201 中, UE发起的是流迁移、 多 PDN 连接或其他多接入连接, 则, 接入网络响应信息包含系统间路由策略, 和 / 或接入网发现信息。 这些消息中都包含各 WLAN接入网所对应的频段标识。
这种由 UE触发获取策略和 /或接入网发现信息的方式是 PULL模式。 可选地, ANDSF也可以釆用 PUSH模式, 主动向 UE发送策略和 /或接 入网发现信息。
步骤 1212, 如果在步骤 1201 中, UE发起的是非 3GPP切换, 则, UE 根据收到的接入网络响应信息, 进行目标接入网络选择和切换决定; 如果在 步骤 1201 中, UE发起的是流迁移、 多 PDN连接或其他多接入连接, 则, UE根据收到的接入网络响应信息, 进行该流的路由选择。
步骤 1213 , 如果在步骤 1201 中, UE发起的是非 3GPP切换, 则, UE 进行非 3GPP 系统切换流程, 切换到目标接入网络; 如果在步骤 1201 中, UE发起的是流迁移、 多 PDN连接或其他多接入连接, 则, UE根据选择的 流路由, 开始流迁移、 多接入 PDN连接或其他多接入连接过程。
此外,本发明实施例中还提供了一种发现和选择热点 2.0接入网的装置, 应用于 ANDSF,如图 13所示,该装置主要包括接入网特性信息管理模块 1311 和接入网特性信息传递模块 1312, 其中:
所述接入网特性信息管理模块 1311用于: 维护接入网特性信息; 以及 所述接入网特性信息传递模块 1312用于: 接收到 UE发送的包括所述 UE的位置信息、热点 2.0能力和期望的接入网特性信息的接入网络请求消息 时, 向所述 UE返回接入网络响应消息, 其中, 所述接入网络响应消息中包 括系统间移动性策略或者系统间路由策略, 以及接入网发现信息, 且所述系 统间移动性策略或者系统间路由策略, 以及所述接入网发现信息中包含所述 接入网特性信息。
可选地,所述接入网特性信息管理模块 1311维护的接入网特性信息包括 下述特性信息中的一种或者任意多种的组合:
接入网计费标识, 其标示接入网免费或者计费;
接入网接入因特网标识, 其标示接入网能够接入或者不能接入因特网; 接入网 WLAN链路情况,其标示接入网当前连接到 WAN链路所对应的 链路状态、 上行链路速度、 下行链路速度、 上行链路负载; 以及
接入网频段标识, 其标示接入网的频段为 2.4GHz或者为 5GHz。
可选地,所述接入网特性信息传递模块 1312是用于按照以下方式向所述 UE返回接入网络响应消息:
基于接入技术、 接入标识, 以及所述接入网特性信息管理模块维护的接 入网特性信息对系统间移动性策略或者系统间路由策略中的接入网优先级进 行排序; 及, 接收到所述接入网络请求消息时, 将所述包含所述接入网特性 信息的系统间移动性策略或者系统间路由策略, 以及所述接入网发现信息通 过所述接入网络响应消息发送给所述 UE。
可选地,所述接入网特性信息传递模块 1312是用于按照以下方式向所述 UE返回接入网络响应消息:
接收到包含所述 UE的位置信息的所述接入网络请求消息时, 查找附近 可用的热点 2.0接入网;并通过广告服务器向所述可用的热点 2.0接入网的各 AP获取所述各 AP所对应的接入网特性信息, 将所述各 AP所对应的接入网 特性信息通过所述接入网络响应消息发送给所述 UE。
可选地,所述接入网特性信息传递模块 1312是用于按照以下方式通过广 告服务器向所述可用的 HS 2.0接入网的各 AP获取所述各 AP所对应的接入 网特性信息:
向广告服务器发送热点 2.0接入网请求消息,其中,所述热点 2.0接入网 请求消息中包括所述可用的热点 2.0接入网的各 AP所对应的 BSSID、 和 /或 HESSID, 和 /或 SSID; 以及
接收所述广告服务器发送的热点 2.0接入网响应消息, 获取到所述热点 2.0接入网响应消息中包含的各 AP所对应的接入网特性信息。
此外,本发明实施例中还提供了一种发现和选择热点 2.0接入网的装置, 应用于广告服务器, 如图 13所示, 该装置主要包括:
接入网特性信息查询请求模块 1321 , 其用于: 接收到 ANDSF发送的包 含可用的热点 2.0接入网的各 AP所对应的 BSSID、和 /或 HESSID、和 /或 SSID 的热点 2.0接入网请求消息时,向所述可用的热点 2.0接入网的各 AP获取所 述各 AP所对应的接入网特性信息, 并将所述各 AP所对应的接入网特性信 息通过热点 2.0接入网响应消息发送给所述 ANDSF。
可选地,所述接入网特性信息查询请求模块 1321向所述各 AP获取的接 入网特性信息, 包括下述特性信息中的一种或者任意多种的组合:
接入网计费标识, 其标示接入网免费或者计费;
接入网接入因特网标识, 其标示接入网能够接入或者不能接入因特网; 接入网 WLAN链路情况,其标示接入网当前连接到 WAN链路所对应的 链路状态、 上行链路速度、 下行链路速度、 上行链路负载; 以及
接入网频段标识, 其标示接入网的频段为 2.4GHz或者为 5GHz。
此外,本发明实施例中还提供了一种发现和选择热点 2.0接入网的装置, 应用于 AP,如图 13所示,该装置包括:接入网特性信息查询响应模块 1331 , 其用于: 接收到广告服务器发送的包含 AP的 BSSID、 HESSID, 和 /或 SSID 的热点 2.0接入网请求消息时, 将所述 AP所对应的接入网特性信息通过热 点 2.0接入网响应消息返回给所述广告服务器。
可选地,所述接入网特性信息查询响应模块 1331返回给所述广告服务器 的所述 AP所对应的接入网特性信息包括下述特性信息中的一种或者任意多 种的组合: 接入网计费标识, 其标示接入网免费或者计费;
接入网接入因特网标识, 其标示接入网能够接入或者不能接入因特网; 接入网 WLAN链路情况,其标示接入网当前连接到 WAN链路所对应的 链路状态、 上行链路速度、 下行链路速度、 上行链路负载; 以及
接入网频段标识, 其标示接入网的频段为 2.4GHz或者为 5GHz。
此外,本发明实施例中还提供了一种发现和选择热点 2.0接入网的装置, 应用于 UE, 如图 13所示, 该装置主要包括:
接入网发现模块 1341 , 其用于: 向 ANDSF发送接入网络请求消息, 所 述接入网络请求消息中包含本 UE的位置信息、 热点 2.0能力和期望的接入 网特性信息; 以及
接入网选择模块 1342, 其用于: 接收所述 ANDSF返回的接入网络响应 消息, 并根据所述接入网络响应消息中的系统间移动性策略或者系统间路由 策略, 以及接入网发现信息中包含的接入网特性信息, 进行目标接入网的选 择和切换、 或者进行流路由选择。
可选地,所述接入网发现模块 1341是用于按照以下方式向 ANDSF发送 接入网络请求消息:
判断所述 UE发起了非 3GPP切换、且发现了 ANDSF时,向所述 ANDSF 发送所述接入网络请求消息;
所述接入网选择模块 1342 是用于按照以下方式根据所述接入网络响应 消息中的系统间移动性策略或者系统间路由策略, 以及接入网发现信息中包 含的接入网特性信息,进行目标接入网的选择和切换、或者进行流路由选择: 接收到所述 ANDSF返回的所述接入网络响应消息时, 根据所述接入网 络响应消息中包括的系统间移动性策略, 以及接入网发现信息包含的接入网 特性信息, 进行目标接入网的选择和切换, 其中, 所述目标接入网由所述接 入网特性信息和 SSID共同标识。
可选地,所述接入网发现模块 1341是用于按照以下方式向 ANDSF发送 接入网络请求消息: 判断所述 UE发起了流迁移、 多 PDN连接或者多接入连接, 且发现了 ANDSF时, 向所述 ANDSF获取系统间路由策略时, 向所述 ANDSF发送所 述接入网络请求消息;
所述接入网选择模块 1342 是用于按照以下方式根据所述接入网络响应 消息中的系统间移动性策略或者系统间路由策略, 以及接入网发现信息中包 含的接入网特性信息,进行目标接入网的选择和切换、或者进行流路由选择: 接收到所述 ANDSF返回的所述接入网络响应消息时, 根据所述接入网 络响应消息中包括的系统间路由策略, 以及接入网发现信息包含的接入网特 性信息, 进行流路由选择, 其中, 该流的目标接入网由所述接入网特性信息 和 SSID共同标识。
可选地,所述接入网发现模块 1341向 ANDSF发送的所述接入网络请求 消息中包含的期望的接入网特性信息, 包括下述信息中的一种或者任意多种 的组合:
接入网计费标识, 其标示接入网免费或者计费;
接入网接入因特网标识, 其标示接入网能够接入或者不能接入因特网; 接入网 WLAN链路情况,其标示接入网当前连接到 WAN链路所对应的 链路状态、 上行链路速度、 下行链路速度、 上行链路负载; 以及
接入网频段标识, 其标示接入网的频段为 2.4GHz或者为 5GHz。
如图 13所示,本发明实施例中还提供了一种发现和选择热点 2.0接入网 的系统, 该系统包括上述的应用于 ANDSF的装置, 应用于广告服务器的装 置, 应用于 AP的装置, 以及如上所述的应用于 UE的装置。 此外, 本发明 其他实施例中, 发现和选择热点 2.0接入网的系统可以包括上述的发现和选 择热点 2.0接入网的装置的至少一种或者任意多种之间的任意组合。
以上仅为本发明的优选实施案例而已, 并不用于限制本发明, 本发明还 可有其他多种实施例, 在不背离本发明精神及其实质的情况下, 熟悉本领域 变形, 但这些相应的 改变和变形都应属于本发明所附的权利要求的保护范围。
显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可 以用通用的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布 在多个计算装置所组成的网络上, 可选地, 它们可以用计算装置可执行的程 序代码来实现, 从而, 可以将它们存储在存储装置中由计算装置来执行, 并 且在某些情况下, 可以以不同于此处的顺序执行所示出或描述的步骤, 或者 将它们分别制作成各个集成电路模块, 或者将它们中的多个模块或步骤制作 成单个集成电路模块来实现。 这样, 本发明实施例不限制于任何特定的硬件 和软件结合。
工业实用性 本发明实施例的技术方案中, 使 UE能够获取到热点 2.0接入网的相关 特性信息, 并据此相关特性信息选择和接入热点 2.0接入网。

Claims

权利要求书
1、 一种发现和选择热点 2.0接入网的方法, 包括:
用户设备 UE向接入网发现和选择功能 ANDSF发送接入网络请求消息, 其中, 所述接入网络请求消息包括所述 UE的位置信息、 热点 2.0能力和期 望的接入网特性信息; 以及
所述 ANDSF向所述 UE返回接入网络响应消息, 其中, 所述接入网络 响应消息包括系统间移动性策略或者系统间路由策略,以及接入网发现信息, 且所述系统间移动性策略或者所述系统间路由策略, 以及所述接入网发现信 息中包含所述接入网特性信息。
2、 如权利要求 1所述的方法, 其中,
所述 UE向 ANDSF发送接入网络请求消息包括:所述 UE判断发起了非 第三代合作伙伴计划 3GPP切换、且发现了 ANDSF时, 向所述 ANDSF发送 所述接入网络请求消息;
所述 ANDSF向所述 UE返回的所述接入网络响应消息包括系统间移动 性策略, 以及接入网发现信息;
所述方法还包括: 所述 UE接收所述系统间移动性策略, 以及所述接入 网发现信息中包含的接入网特性信息, 并进行目标接入网的选择和切换, 其 中, 所述目标接入网由所述接入网特性信息和服务集标识 SSID共同标识。
3、 如权利要求 1所述的方法, 其中,
所述 UE向 ANDSF发送接入网络请求消息包括:所述 UE发起了流迁移、 多分组数据网 PDN 连接或者多接入连接, 且发现了 ANDSF 时, 向所述 ANDSF发送所述接入网络请求消息;
所述 ANDSF向所述 UE返回的所述接入网络响应消息包括系统间路由 策略, 以及接入网发现信息;
所述方法还包括: 所述 UE接收所述系统间路由策略, 以及所述接入网 发现信息中包含的接入网特性信息, 并进行流路由选择, 其中, 流的目标接 入网由所述接入网特性信息和 SSID共同标识。
4、 如权利要求 1所述的方法, 其中,
所述 UE的期望的接入网特性信息, 包括下述信息中的一种或者任意多 种的组合:
接入网计费标识, 其标示接入网免费或者计费;
接入网接入因特网标识, 其标示接入网能够接入或者不能接入因特网; 接入网无线局域网 WLAN链路情况 , 其标示接入网当前连接到广域网 WAN链路所对应的链路状态、 上行链路速度、 下行链路速度和上行链路负 载; 以及
接入网频段标识, 其标示接入网的频段为 2.4吉赫 GHz或者为 5GHz。
5、 如权利要求 1、 2、 3或 4所述的方法, 其中,
所述 ANDSF向所述 UE返回接入网络响应消息包括:
所述 ANDSF维护接入网特性信息, 并基于所述接入网特性信息、 接入 技术、 以及接入标识对所述 ANDSF的系统间移动性策略或者系统间路由策 略中的接入网优先级进行排序; 以及
所述 ANDSF接收到所述接入网络请求消息时, 将所述系统间移动性策 略或者所述系统间路由策略, 以及所述接入网发现信息通过所述接入网络响 应消息发送给所述 UE。
6、 如权利要求 1、 2、 3或 4所述的方法, 其中,
所述 ANDSF向所述 UE返回接入网络响应消息包括:
所述 ANDSF接收到包含所述 UE的位置信息的所述接入网络请求消息 时, 查找附近可用的热点 2.0接入网; 以及
所述 ANDSF通过广告服务器向所述可用的热点 2.0接入网的各接入点 AP获取所述各 AP所对应的接入网特性信息, 并将所述各 AP所对应的接入 网特性信息通过所述接入网络响应消息发送给所述 UE。
7、 如权利要求 6所述的方法, 其中,
所述 ANDSF通过广告服务器向所述可用的热点 2.0接入网的各 AP获取 所述各 AP所对应的接入网特性信息, 包括: 所述 ANDSF向所述广告服务器发送热点 2.0接入网请求消息, 其中, 所述热点 2.0接入网请求消息中包括所述可用的热点 2.0接入网的各 AP所对 应的基础服务集标识符 BSSID、 和 /或同质扩展服务集标识符 HESSID、 和 / 或 SSID; 以及
所述广告服务器向所述各 AP发送热点 2.0接入网请求消息, 并将接收 到的所述各 AP返回的热点 2.0接入网响应消息中包含的所述各 AP所对应的 接入网特性信息, 通过热点 2.0接入网响应消息发送给所述 ANDSF。
8、 一种发现和选择热点 2.0接入网的装置, 其特征在于, 应用于接入网 发现和选择功能 ANDSF, 所述装置包括: 接入网特性信息管理模块和接入 网特性信息传递模块, 其中,
所述接入网特性信息管理模块设置成: 维护接入网特性信息; 以及 所述接入网特性信息传递模块设置成: 接收到用户设备 UE发送的包括 所述 UE的位置信息、 热点 2.0能力和期望的接入网特性信息的接入网络请 求消息时, 向所述 UE返回接入网络响应消息, 其中, 所述接入网络响应消 息中包括系统间移动性策略或者系统间路由策略, 以及接入网发现信息, 且 所述系统间移动性策略或者所述系统间路由策略, 以及所述接入网发现信息 中包含所述接入网特性信息。
9、 如权利要求 8所述的装置, 其中,
所述接入网特性信息管理模块维护的接入网特征信息, 包括下述特性信 息中的一种或者任意多种的组合:
接入网计费标识, 其标示接入网免费或者计费;
接入网接入因特网标识, 其标示接入网能够接入或者不能接入因特网; 接入网无线局域网 WLAN链路情况 , 其标示接入网当前连接到广域网 WAN链路所对应的链路状态、 上行链路速度、 下行链路速度和上行链路负 载; 以及
接入网频段标识, 其标示接入网的频段为吉赫 2.4GHz或者为 5GHz。
10、 如权利要求 8或 9所述的装置, 其中,
所述接入网特性信息传递模块是设置成按照以下方式向所述 UE返回接 入网络响应消息:
基于接入技术、 接入标识, 以及所述接入网特性信息管理模块维护的接 入网特性信息对系统间移动性策略或者系统间路由策略中的接入网优先级进 行排序; 及, 接收到所述接入网络请求消息时, 将所述包含所述接入网特性 信息的所述系统间移动性策略或者所述系统间路由策略, 以及所述接入网发 现信息通过所述接入网络响应消息发送给所述 UE。
11、 如权利要求 8或 9所述的装置, 其中,
所述接入网特性信息传递模块是设置成按照以下方式向所述 UE返回接 入网络响应消息:
接收到包含所述 UE的位置信息的所述接入网络请求消息时, 查找附近 可用的热点 2.0接入网;并通过广告服务器向所述可用的热点 2.0接入网的各 接入点 AP获取所述各 AP所对应的接入网特性信息,将所述各 AP所对应的 接入网特性信息通过所述接入网络响应消息发送给所述 UE。
12、 如权利要求 11所述的装置, 其中,
所述接入网特性信息传递模块是设置成按照以下方式通过广告服务器向 所述可用的热点 2.0接入网的各 AP获取所述各 AP所对应的接入网特性信息: 向所述广告服务器发送热点 2.0接入网请求消息, 其中, 所述热点 2.0 接入网请求消息中包括所述可用的热点 2.0接入网的各 AP所对应的基础服 务集标识符 BSSID、和 /或同质扩展服务集标识符 HESSID、和 /或服务集标识 符 SSID; 以及
接收所述广告服务器发送的热点 2.0接入网响应消息, 获取到所述热点 2.0接入网响应消息中包含的所述各 AP所对应的接入网特性信息。
13、 一种发现和选择热点 2.0接入网的装置, 其特征在于, 应用于广告 服务器, 所述装置包括:
接入网特性信息查询请求模块, 其设置成: 接收到接入网发现和选择功 能 ANDSF发送的包含可用的热点 2.0接入网的各接入点 AP所对应的基础服 务集标识符 BSSID、和 /或同质扩展服务集标识符 HESSID、和 /或服务集标识 符 SSID的热点 2.0接入网请求消息时, 向所述可用的热点 2.0接入网的各 AP获取所述各 AP所对应的接入网特性信息, 并将所述各 AP所对应的接入 网特性信息通过热点 2.0接入网响应消息发送给所述 ANDSF。
14、 如权利要求 13所述的装置, 其中,
所述接入网特性信息查询请求模块向所述各 AP获取的接入网特性信息, 包括下述特性信息中的一种或者任意多种的组合:
接入网计费标识, 其标示接入网免费或者计费;
接入网接入因特网标识, 其标示接入网能够接入或者不能接入因特网; 接入网无线局域网 WLAN链路情况 , 其标示接入网当前连接到广域网 WAN链路所对应的链路状态、 上行链路速度、 下行链路速度和上行链路负 载; 以及
接入网频段标识, 其标示接入网的频段为吉赫 2.4GHz或者为 5GHz。
15、 一种发现和选择热点 2.0接入网的装置, 其特征在于, 应用于接入 点 AP, 所述装置包括:
接入网特性信息查询响应模块, 其设置成: 接收到广告服务器发送的包 含 AP的基础服务集标识符 BSSID、 同质扩展服务集标识符 HESSID、 和 /或 服务集标识符 SSID的热点 2.0接入网请求消息时,将所述 AP所对应的接入 网特性信息通过热点 2.0接入网响应消息返回给所述广告服务器。
16、 如权利要求 15所述的装置, 其中,
所述接入网特性信息查询响应模块返回给所述广告服务器的所述 AP所 对应的接入网特性信息, 包括下述特性信息中的一种或者任意多种的组合: 接入网计费标识, 其标示接入网免费或者计费;
接入网接入因特网标识, 其标示接入网能够接入或者不能接入因特网; 接入网无线局域网 WLAN链路情况 , 其标示接入网当前连接到广域网 WAN链路所对应的链路状态、 上行链路速度、 下行链路速度和上行链路负 载; 以及
接入网频段标识, 其标示接入网的频段为 2.4吉赫 GHz或者为 5GHz。
17、 一种发现和选择热点 2.0接入网的装置, 其特征在于, 应用于用户 设备 UE, 所述装置包括:
接入网发现模块, 其设置成: 向接入网发现和选择功能 ANDSF发送接 入网络请求消息, 其中, 所述接入网络请求消息中包含本 UE的位置信息、 热点 2.0能力和期望的接入网特性信息; 以及
接入网选择模块, 其设置成: 接收所述 ANDSF返回的接入网络响应消 息, 并根据所述接入网络响应消息中的系统间移动性策略或者系统间路由策 略, 以及接入网发现信息中包含的接入网特性信息, 进行目标接入网的选择 和切换、 或者进行流路由选择。
18、 如权利要求 17所述的装置, 其中,
所述接入网发现模块是设置成按照以下方式向 ANDSF发送接入网络请 求消息:
判断所述 UE 发起了非第三代合作伙伴计划 3GPP 切换、 且发现了 ANDSF时, 向所述 ANDSF发送所述接入网络请求消息;
所述接入网选择模块是设置成按照以下方式根据所述接入网络响应消息 中的系统间移动性策略或者系统间路由策略, 以及接入网发现信息中包含的 接入网特性信息, 进行目标接入网的选择和切换、 或者进行流路由选择: 接收到所述 ANDSF返回的所述接入网络响应消息时, 根据所述接入网 络响应消息中包括的系统间移动性策略, 以及接入网发现信息包含的接入网 特性信息, 进行目标接入网的选择和切换, 其中, 所述目标接入网由所述接 入网特性信息和服务集标识符 SSID共同标识。
19、 如权利要求 17所述的装置, 其中,
所述接入网发现模块是设置成按照以下方式向 ANDSF发送接入网络请 求消息:
判断所述 UE发起了流迁移、多分组数据网络 PDN连接或者多接入连接, 且发现了 ANDSF时,向所述 ANDSF获取系统间路由策略时,向所述 ANDSF 发送所述接入网络请求消息;
所述接入网选择模块是设置成按照以下方式根据所述接入网络响应消息 中的系统间移动性策略或者系统间路由策略, 以及接入网发现信息中包含的 接入网特性信息, 进行目标接入网的选择和切换、 或者进行流路由选择: 接收到所述 ANDSF返回的所述接入网络响应消息时, 根据所述接入网 络响应消息中包括的系统间路由策略, 以及接入网发现信息包含的接入网特 性信息, 进行流路由选择, 其中, 流的目标接入网由所述接入网特性信息和 SSID共同标识。
20、 如权利要求 17、 18或 19所述的装置, 其中,
所述接入网发现模块向 ANDSF发送的所述接入网络请求消息中包含的 期望的接入网特性信息, 包括下述信息中的一种或者任意多种的组合: 接入网计费标识, 其标示接入网免费或者计费;
接入网接入因特网标识, 其标示接入网能够接入或者不能接入因特网; 接入网无线局域网 WLAN链路情况 , 其标示接入网当前连接到广域网 WAN链路所对应的链路状态、 上行链路速度、 下行链路速度和上行链路负 载; 以及
接入网频段标识, 其标示接入网的频段为 2.4吉赫 GHz或者为 5GHz。
21、 一种发现和选择热点 2.0接入网的系统, 包括: 如权利要求 8、 9、
10、 11或 12之任一项所述的应用于接入网发现和选择功能 ANDSF的装置, 和 /或如权利要求 13或 14之任一项所述的应用于广告服务器的装置, 和 /或 如权利要求 15或 16之任一项所述的应用于接入点 AP的装置, 和 /或如权利 要求 17、 18、 19或 20之任一项所述的应用于用户设备 UE的装置。
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