WO2016106722A1 - 一种接入方法、装置和系统 - Google Patents

一种接入方法、装置和系统 Download PDF

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Publication number
WO2016106722A1
WO2016106722A1 PCT/CN2014/095992 CN2014095992W WO2016106722A1 WO 2016106722 A1 WO2016106722 A1 WO 2016106722A1 CN 2014095992 W CN2014095992 W CN 2014095992W WO 2016106722 A1 WO2016106722 A1 WO 2016106722A1
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Prior art keywords
network
access
message
network element
base station
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PCT/CN2014/095992
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English (en)
French (fr)
Inventor
戚彩霞
陈靖
陈伟
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201480080113.5A priority Critical patent/CN106471829B/zh
Priority to PCT/CN2014/095992 priority patent/WO2016106722A1/zh
Publication of WO2016106722A1 publication Critical patent/WO2016106722A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an access method, apparatus, and system.
  • 4G International:generation
  • 2G networks and 3G networks can be classified into one type, called 2/3G networks.
  • User devices that support both 2/3G networks and 4G networks are also widely available.
  • the base station device may preferentially access the user equipment to the 4G network.
  • the user equipment may be interrupted, resulting in poor service stability and poor user experience.
  • the embodiment of the invention provides an access method, device and system for improving service stability.
  • an embodiment of the present invention provides an access method, including: when a mobility management network element of a first network learns that a user equipment UE requests to access a first network, the mobility management network element requests to acquire the UE in a second The subscription data in the network; when the mobile management network element fails to obtain the subscription data, the mobility management network element sends the failure indication information to the base station device of the first network; wherein the failure indication information is used to indicate that the UE is not the UE Select the second network access.
  • the failure indication information may be specifically used to indicate that the second network access is not selected for the UE for a period of time.
  • the base station device after the base station device receives the indication information, the base station device does not select the second network access for the user equipment, so that the user equipment can be prevented from frequently switching between the first network and the second network.
  • the network impact improves the stability of the business and guarantees the user experience.
  • the method before the mobile management network element requests to acquire the subscription data of the UE in the second network, the method further includes: the mobility management network element determining that the UE has The ability to access the second network.
  • the user equipment has the capability of accessing the second network, and then the subscription data of the user equipment in the second network is obtained, so that the user equipment that does not have the capability of accessing the second network can be prevented from acquiring the user equipment.
  • Signing data in the second network thus eliminating unnecessary signaling interactions and improving the efficiency of the technical solution.
  • the sending, by the mobility management network element, the failure indication information to the base station device of the first network includes: The mobile management network element sends a downlink message carrying the failure indication information to the base station device, where the downlink message includes one or more of the following messages: a radio access bearer assignment message, a redirect request message, a direct migration message, A base station subsystem packet flow context request, a public identity message, a packet switched handover request message, or a downlink unit data message is created.
  • the mobility management network element requests to obtain the subscription data of the UE in the second network.
  • the method includes: the mobile management network element requests to acquire the subscription data of the user equipment in the second network by sending an update location request message to the home subscriber server of the second network.
  • the method further includes: the mobile management network element receiving an update location response message sent by the home subscriber server, and according to the update location The response message confirms that the subscription data of the user equipment in the second network fails.
  • the first network is a 2/3G network
  • the second network is 4G network.
  • the mobile management network element learns that the user equipment requests to access the first network
  • the mobile management network element learns that the user equipment requests to access the first network by receiving an access request sent by the user equipment.
  • the access request includes an attach request or a routing area update request.
  • the embodiment of the present invention provides a mobile management network element device, configured to: use, by a requesting unit, to request to acquire the UE in the second when the user equipment UE requests to access the first network.
  • the subscription data in the network the sending unit, configured to send the failure indication information to the base station device of the first network when the subscription data of the user equipment fails in the second network, where the failure indication information is used to indicate that The second network access is selected for the UE.
  • the apparatus further includes: a determining unit, configured to determine that the UE has the capability of accessing the second network.
  • the sending unit is configured to send a downlink message that carries the failure indication information to the base station device, where the downlink is The message includes one or more of the following messages: a radio access bearer assignment message, a redirect request message, a direct migration message, a base station subsystem packet flow context request, a public identity message, a packet switched handover request message, or a downlink unit data message. .
  • the requesting unit is specifically configured to send an update location request message to the home subscriber server. To request to obtain the subscription data of the user equipment in the second network.
  • the device further includes: a receiving unit, configured to receive an update location response message sent by the home subscriber server, and a confirming unit, configured to: Acknowledgement of obtaining the subscription data of the user equipment in the second network fails according to the update location response message.
  • the first network is a 2/3G network
  • the second network For 4G networks.
  • the apparatus further includes: a learning unit, configured to learn, by receiving an access request sent by the user equipment, that the user equipment requests to access the first network.
  • the access request includes an attach request or a routing area update request.
  • an embodiment of the present invention provides an access system, including: the mobility management network element device of the foregoing second aspect, or one of the first to fifth implementation manners of the second aspect, and the base station device.
  • the system further includes the user equipment.
  • an embodiment of the present invention provides a mobility management network element, including a communication unit and a processing unit, where the processing unit is configured to request, when the user equipment UE requests to access the first network, request the UE to acquire the UE by using the communication unit.
  • the subscription data in the second network when the subscription data of the user equipment in the second network fails to be obtained, the communication unit sends a failure indication information to the base station device of the first network, where the failure indication information is used to indicate that The second network access is selected for the UE; wherein the first network includes the mobility management network element.
  • the processing unit is further configured to determine that the UE has the capability of accessing the second network.
  • the processing unit is configured to send, by using the communications unit, a downlink message that carries the failure indication information.
  • the downlink message comprises one or more of the following: a radio access bearer assignment message, a redirect request message, a direct migration message, a base station subsystem packet flow context request, a public identity message, a packet Exchange a handover request message or a downlink unit data message.
  • the processing unit is specifically used in the third possible implementation manner of the fourth aspect Sending an update location request message to the home subscriber server of the second network by the communication unit to request acquisition of the subscription data of the user equipment in the second network.
  • the processing unit is further configured to receive, by the communication unit, an update location response message sent by the home subscriber server, and confirm, according to the update location response message, that the subscription data of the user equipment in the second network fails.
  • the first network is a 2/3G network
  • the second network For 4G networks.
  • the processing unit is further configured to receive the user by using the communication unit
  • the access request sent by the device learns that the user equipment requests to access the first network.
  • the access request may include an attach request or a routing area update request.
  • the access method, device, and system provided by the embodiment of the present invention determine whether the user equipment is allowed to access the second network in advance, and if the access is not allowed, the base station device of the first network is not selected for the user equipment.
  • the network access can avoid network impact caused by frequent switching between the first network and the second network by the user equipment, improve service stability, and ensure user experience.
  • the 3rd generation partnership project (English: 3rd generation partnership project, 3GPP) is a project dedicated to the development of wireless communication networks. Generally, a 3GPP related organization is referred to as a 3GPP organization.
  • a wireless communication network is a network that provides wireless communication functions.
  • the wireless communication network may use different communication technologies, such as, for example, code division multiple access (CDMA), wideband code division multiple access (WCDMA), and time division multiple access (English: Time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency-division multiple access (OFDMA), single carrier frequency Multiple access (English: single carrier fDMA, referred to as: SC-FDMA).
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • TDMA Time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency-division multiple access
  • SC-FDMA single carrier frequency Multiple access
  • the network can be divided into 2G (English: generation) network, 3G network or 4G network.
  • a typical 2G network includes the global mobile communication system (English: global system for mobile communications/ General packet radio service (referred to as: GSM) network or general packet radio service (English: general packet radio service, referred to as: GPRS) network, a typical 3G network including universal mobile telecommunications system (English: universal mobile telecommunications system, referred to as: UMTS) Network, a typical 4G network includes a long term evolution (LTE) network.
  • the UMTS network may also be referred to as a universal terrestrial radio access network (UTRAN).
  • the LTE network may also be referred to as an evolved universal terrestrial radio access network (English: evolved universal terrestrial) Radio access network, referred to as E-UTRAN.
  • 2G networks and 3G networks are classified into one type, called 2/3G networks, and 4G networks are classified into one class.
  • 2/3G networks 2/3G networks
  • 4G networks are classified into one class.
  • embodiments of the present invention sometimes refer to a wireless communication network as a network.
  • the embodiment of the present invention is described by taking a 2/3G network and a 4G network as an example.
  • User equipment (English: user equipment, abbreviated as UE) is a terminal device, which can be a mobile terminal device or a non-mobile terminal device. The device is mainly used to receive or send business data. User equipment can be distributed in the network. User equipments have different names in different networks, such as: terminals, mobile stations, subscriber units, stations, cellular phones, personal digital assistants, wireless modems, wireless communication devices, handheld devices, knees. Upper computer, cordless phone, wireless local loop station, etc. The user equipment can communicate with one or more core networks via a Radio Access Network (RAN), for example, to exchange voice and/or data with the radio access network.
  • RAN Radio Access Network
  • a base station (English: base station, BS for short) device also referred to as a base station, is a device deployed in a wireless access network to provide wireless communication functions.
  • a device that provides a base station function in a 2G network includes a base transceiver station (BTS) and a base station controller (English: base station controller, referred to as BSC, and a device that provides a base station function in a 3G network, including Node B (abbreviation: NodeB) and radio network controller (English: radio network controller, RNC for short), the device that provides the function of the base station in the 4G network includes the evolved Node B (English: evolved NodeB: eNB or eNodeB) .
  • BTS base transceiver station
  • BSC base station controller
  • NodeB evolved Node B
  • RNC radio network controller
  • Mobile management network element (English: mobile management network element, referred to as: MMNE) It is a device deployed in the core network for mobility management of UEs.
  • the mobility management network element includes a GPRS service support node (English: serving GPRS support node, referred to as SGSN).
  • the mobility management network element includes a mobility management entity (English: mobility management entity) , referred to as: MME).
  • MME mobility management entity
  • the mobility management network elements of the 2/3G network and the 4G network can be deployed on the same network element, also known as the mobility management of the 2/3G network and the 4G network.
  • the network elements are combined on the same network element.
  • the network elements of the mobility management network element and the mobile management network element of the 4G network, which are combined with the 2/3G network are generally referred to as a converged mobile management network element.
  • a home subscriber server is a device for storing subscription data of a UE, and is usually deployed in a core network.
  • the HSS can store the subscription data of the UE in the 4G network and is connected to the mobility management network element of the 4G network.
  • the home location register is a device for storing subscription data of the UE, and is usually deployed in the core network.
  • the HLR can store the subscription data of the UE on the 2/3G network and is connected to the mobility management network element of the 2/3G network.
  • the HSS and the HLR can be deployed on the same device or on different devices.
  • FIG. 1 is a schematic structural diagram of a networking structure according to an embodiment of the present disclosure
  • FIG. 2 is a schematic flowchart of an access method according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a mobility management network element according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of another mobility management network element according to an embodiment of the present invention.
  • the network architecture and the service scenario described in the embodiments of the present invention are used to more clearly illustrate the technical solutions of the embodiments of the present invention, and do not constitute a limitation of the technical solutions provided by the embodiments of the present invention.
  • the technical solutions provided by the embodiments of the present invention are equally applicable to similar technical problems.
  • the following is an example of a scenario where a 2/3G network and a 4G network are deployed at the same time.
  • FIG. 1 is a schematic diagram of a network architecture for simultaneously deploying a 2/3G network and a 4G network.
  • the network architecture only shows the mobility management network element SGSN of the 2/3 network, the mobility management network element MME, the HSS, the HLR of the 4G network, the base station equipment BSC and BTS of the 2G network, and the base station equipment RNC of the 3G network.
  • the NodeB, the base station device eNodeB of the 4G network, and the user equipment UE Those skilled in the art should understand that the network element and network architecture in actual deployment will be different.
  • the foregoing network architecture is only an example of an application scenario of the embodiment of the present invention. For example, it may also be applied to a scenario where a 2G network and a 4G network are simultaneously deployed, or a 3G network and a 4G network are simultaneously deployed. Scenes.
  • the SGSN is connected to the base station equipment BSC and/or RNC of the 2/3G network as a mobility management network element of the 2/3G network, and is connected to the HLR that subscribes to the data of the user storing the 2/3G network.
  • the HSS is connected to the mobility management network element MME of the 4G network.
  • the HSS stores user subscription data of the 4G network.
  • the SGSN is interconnected with the MME, and the MME is queried by the MME to the 4G network subscription data of the UE.
  • the SGSN directly interworks with the HSS to query the 4G network subscription data of the UE.
  • the HLR is interconnected with the HSS, and the SGSN queries the HSS for the 4G network subscription data of the UE through the HLR.
  • the MME is a mobile management network element of the 4G network, and is connected to the base station device eNodeB of the 4G network, and is connected to the HSS of the subscription data of the user storing the 4G network.
  • the SGSN and the MME can be separately deployed on different devices, or can be set on the same device, and details are not described herein.
  • the UE can support 2/3G network and 4G network, that is, support base station with 2/3G network, and base station of 4G network for wireless communication.
  • 2/3G network support base station with 2/3G network
  • base station of 4G network for wireless communication.
  • the base station of the 2/3G network and the base station of the 4G network may be physically separate devices or may be combined on the same device.
  • the HLR is used to store subscription data of the 2/3G network corresponding to the UE.
  • the HLR stores the subscription data of the UE corresponding to the 2G network, indicating that the UE can access the 2G network for service.
  • the HLR stores the subscription data of the UE corresponding to the 3G network.
  • the HSS is used to store subscription data for the corresponding 4G network of the UE.
  • the HSS stores the subscription data of the UE corresponding to the 4G network.
  • the UE's request to access the 4G network is rejected.
  • the user of the UE subscribes to the 2G, 3G or 4G network and may also call the UE to sign a 2G, 3G or 4G network.
  • the coverage areas of 2/3G networks and 4G networks overlap.
  • the UE may perform wireless communication with any one of the BTS, the NodeB, or the eNodeB in the overlapping coverage area.
  • 4G networks Due to the commercialization of 4G networks, there are a large number of UEs in the network that can support 2/3G networks and 4G networks. However, users of these UEs may only sign 2/3G networks with operators and do not sign 4G networks. After these UEs access the 2/3G network, since these UEs support the 4G network, the base station equipment of the 2/3G network preferably accesses the 4G network for the UE. However, since these UEs do not subscribe to the 4G network, they will be denied access by the 4G network, and then these UEs will access the 2/3G network again.
  • the base station equipment of the 2/3G network will preferentially access these UEs to the 4G network, causing these UEs to frequently switch between the 2/3G network and the 4G network, resulting in a ping-pong phenomenon.
  • Cause rush Hit causing business instability.
  • a pre-judging mechanism is introduced when the UE accesses the 2/3G network, and the UE is pre-determined whether the UE can access the 4G network when the UE accesses the 2/3G network.
  • the mobile management network element of the 2/3G network may determine whether the UE is allowed to access the 4G network when the UE camps on the 2/3G network, and notify the 2/3G if the UE does not allow access to the 4G network.
  • the base station of the network does not prefer the 4G network access for the UE, so that the UE can be prevented from continuously switching between the 2/3G network and the 4G network, thereby improving service stability.
  • an expiration period may be set, that is, after the expiration period is exceeded, the base station of the 2/3G network may resume to preferentially access the 4G network of the UE, thereby facilitating users of the UE.
  • whether the UE is allowed to access the 4G network can be determined whether the subscription data of the corresponding 4G network of the UE can be successfully obtained.
  • the SGSN and the HSS may request to obtain the subscription data of the 4G network corresponding to the UE. If the acquisition fails, the UE may be determined not to access the 4G network.
  • the mobility management network element of the first network learns that the user equipment requests to access the first network, the mobility management network element requests to obtain the subscription data of the user equipment in the second network; when the mobility management network element fails to acquire the subscription data, The mobile management network element sends a failure indication information to the base station device of the first network, where the failure indication information is used to indicate that the second network access is not selected for the user equipment.
  • the 4G network is used as the LTE network
  • the 2G network is the GPRS network
  • the 3G network is the UMTS network as an example.
  • FIG. 2 shows a flow diagram of an access method.
  • the foregoing pre-judgment mechanism is introduced in the access method shown in FIG. 2.
  • the UE does not subscribe to the 4G network, and therefore the subscription data of the 4G network corresponding to the UE does not exist in the HSS.
  • 101 The UE sends an access request to the SGSN through the BSC or the RNC.
  • the access request is used to request access to the 2/3G network corresponding to the SGSN.
  • the request to access the 2/3G network corresponding to the SGSN can be understood in a broad sense, that is, it can also be understood that the request continues to reside on the 2/3G network corresponding to the SGSN.
  • the access request may include an attach request (English: attach request) or a routing area update request (RAU) request.
  • an attach request English: attach request
  • RAU routing area update request
  • the UE may perform step 101 after being powered on, or perform step 101 when it is required to switch from the other network to the 2/3G network, and may also perform step 101 after the UE accesses the 2/3G network.
  • the SGSN learns that the UE selects the 2/3G network as the network it camps on, that is, the SGSN learns that the UE requests to access the 2/3G network.
  • the SGSN may perform the foregoing pre-judging mechanism to determine whether the UE is allowed to access the 4G network.
  • Steps 103-104 are an implementation of the above pre-judging mechanism.
  • the SGSN sends an update location request message to the HSS.
  • the SGSN requests to acquire the subscription data of the UE in the 4G network by using the location update request message.
  • the update location request may include the UE ID of the UE (Chinese: identifier, English: identity) to indicate the subscription data of the UE corresponding to the UE ID in the 4G network.
  • the HSS sends an update location response message to the SGSN.
  • the update location response does not carry the subscription data of the 4G network corresponding to the UE.
  • the update location response may carry the indication information, which is used to indicate that the subscription data of the 4G network corresponding to the UE cannot be obtained, and may also be understood as the absence of the 4G network corresponding to the UE.
  • Signing data can be implemented by a result cell, and when the result cell takes a value of:
  • DIAMETER_ERROR_ROAMING_NOT_ALLOWED (5004) indicates that it cannot be obtained
  • the SGSN may confirm that the subscription data of the UE in the 4G network fails.
  • the SGSN may request to obtain the subscription data of the UE in the 4G network multiple times, that is, when the SGSN does not obtain the subscription data of the 4G network corresponding to the UE after the steps 103 and 104, the SGSN may try again through steps 103 and 104. Obtain the subscription data of the UE in the 4G network. In this way, the subscription data of the UE in the 4G network cannot be obtained due to other reasons, for example, the connection between the SGSN and the HSS is temporarily interrupted or the HSS is overloaded.
  • the SGSN may fail to obtain the subscription data of the UE in the 4G network, that is, the UE is not allowed to access the 4G network.
  • the SGSN may also first determine whether the UE has the capability of accessing the 4G network. For example, whether the UE has access to the 4G network may be determined according to an evolved packet core capabilities parameter in the mobile station network capability field (English: mobile station network capability) field reported by the UE. ability. For example, the evolved packet core network capability parameter of the UE is 1 indicating that it has the capability to access the 4G network, and 0 indicates that it does not have the capability to access the 4G network.
  • an evolved packet core capabilities parameter of the UE is 1 indicating that it has the capability to access the 4G network, and 0 indicates that it does not have the capability to access the 4G network.
  • Steps 103-104 Those skilled in the art can understand that, for the convenience of implementation, steps 103-104 can be performed even for user equipments that do not have access to 4G network capabilities.
  • the SGSN fails to obtain the subscription data of the 4G network corresponding to the UE in steps 103-104, it may be considered that the BSC or the RNC does not preferentially access the UE to the 4G network, so that the UE can be continuously maintained on the 2/3G network and the 4G network. Switching between, reducing the pressure on the network, is also conducive to maintaining business stability.
  • the mobility management network element of the 2/3G network that is, the SGSN, sends a failure indication information to indicate that the 2/3G base station device no longer preferentially accesses the UE to the 4G network.
  • the SGSN sends a failure indication message to the BSC/RNC.
  • the failure indication information is used to indicate that the BSC/RNC does not preferentially access the UE to the 4G network. After the BSC/RNC receives the failure indication information, the BSC/RNC does not select 4G network access for the UE. It should be understood by those skilled in the art that the description of the information indicated by the failure indication information may be various, for example, prohibiting the preferential selection of the 4G network access for the UE, and stopping the preferential access of the UE to the 4G network, which is not limited by the present invention. .
  • the SGSN can send the failure indication information to the BSC/RNC through a downlink message.
  • the downlink message includes one or more messages in the following examples.
  • the mobility management network element of the 2/3G network may send the failure indication information to the RNC through a radio access bearer assignment request (English: rab assignment request) message or a relocation request (English: relocation request) message.
  • the value of the E-UTRAN service handover cell in the two messages may be set to “handover to E-UTRAN shall not be performed” to indicate the failure indication information.
  • the mobility management network element of the 2/3G network may also create a base station subsystem packet flow context request (English: create base station subsystem packet flow context request) message or downlink unit data (English: dl-unitdata) message. Or a packet switch handover request message is sent to the BSC.
  • the value of the service UTRAN COO cell in the three messages may be set to “network initiated cell change order to E-UTRAN procedure shall be performed” to indicate the failure indication information.
  • the mobility management network element of the 2/3G network may also create a base station subsystem packet flow context request message and a downlink unit data message by directly migrating a direct transfer message, a public identifier (English: common ID) message, Or a radio access technology user description identifier (English: subscriber profile ID for RAT) cell or a frequency priority (English: priority) cell in the packet switched handover request message to indicate the failure indication information.
  • a public identifier English: common ID
  • a radio access technology user description identifier English: subscriber profile ID for RAT
  • a frequency priority English: priority
  • the failure indication information may also be represented by adding a cell in the above message.
  • the BSC/RNC After the BSC/RNC receives the failure indication information, when the UE is in the 2/3G network, the BSC/RNC will not access the preferred 4G network for the UE, so the UE will not frequently be in the 2/3G network and the 4G network. Room Switching, alleviating the phenomenon of ping-pong, and improving the stability of the business.
  • the BSC/RNC may respond to the failure indication information, and reply the confirmation response message to the SGSN, to notify the SGSN that the corresponding operation has been performed according to the failure indication information.
  • the indication that the 4G network access is no longer selected for the user equipment is also understood to be that the 4G network access is no longer selected for the user equipment for a period of time, that is, after this period of time, the 2/3G network
  • the base station device can reselect the 4G network access for the UE.
  • the SGSN may camp the UE on the 2/3G network according to the request of the UE.
  • the SGSN may camp the UE on the 2/3G network according to the request of the UE.
  • the SGSN performs authentication and security related processes.
  • Step 102 is an optional step. If you need to perform this step, you can execute it before step 103.
  • the SGSN obtains subscription data of the UE in the 2/3G network.
  • the SGSN sends an access accept message to the UE through the BSC/RNC.
  • the access receiving message may be an attach accept message or a routing area update accept message.
  • the accept accept message may be carried in a direct migration message or a downlink unit data message.
  • the UE sends an access complete message to the SGSN through the BSC/RNC.
  • the access complete message may be an attach complete message or a routing area update complete message.
  • the UE can camp on the 2/3G network for service.
  • steps 103, 104, and 108 do not have a timing relationship with steps 105-107.
  • the SGSN may notify the BSC/RNC that the UE may prefer 4G network access, so that the UE resides at 2/ After 3G network, you can select 4G network access again to get better network service and user experience.
  • a timer may be set on the SGSN.
  • the UE may request to access the 2/3G network again, the SGSN may not need to perform steps 103-105 to avoid In a short time, the SGSN frequently interacts with the HSS in a meaningless manner.
  • the base station device that instructs the 2/3G network in advance does not connect the user equipment that does not subscribe to the 4G network to the preferred 4G network.
  • Incoming avoiding frequent switching between 4G network and 2/3G network caused by user equipment that is not signed 4G network continuously switched to the 4G network by the base station equipment of the 2/3G network, which reduces the impact on the network and improves the impact.
  • the stability of the business enhances the user experience.
  • the 2/3G network and the 4G network in the embodiment of the present invention are merely examples, and do not constitute a limitation of the wireless communication network in the embodiment of the present invention.
  • the mobility management network element of the existing 2/3G network needs to be modified to implement the technical solution of the foregoing embodiment shown in FIG.
  • an embodiment of the present invention provides a mobile management network element device, which is used in a first network, and may include a request unit 201 and a sending unit 202.
  • the requesting unit 201 may be configured to request to acquire subscription data of the user equipment in the second network when the user equipment is requested to access the first network.
  • the mobility management network element used in the first network may also be understood as the mobile management network element belongs to the first network, or the first network includes the mobility management network element.
  • the mobility management network element may be the SGSN in the embodiment shown in FIG. 2, and the first network may be the 2/3G network in the embodiment shown in FIG. 2, and the second network may be as shown in FIG.
  • the subscription data may be the subscription data of the UE in the 4G network in the embodiment shown in FIG. 2 .
  • step 101 in the embodiment shown in FIG. 2 can be referred to.
  • the sending unit 202 may be configured to send the failure indication information to the base station device of the first network when the subscription data fails to be obtained, where the failure indication information is used to indicate that the second network access is not selected for the user equipment.
  • the failure indication information may refer to the failure indication information in the embodiment shown in FIG. 2
  • the base station device of the first network may be the BSC or the RNC in the embodiment shown in FIG. 2.
  • the mobility management network element may further include a determining unit 203.
  • the determining unit 203 is configured to determine that the user equipment has the capability of accessing the second network. For example, whether the user equipment has the capability of accessing the second network may be determined according to the evolved packet core network capability parameter in the mobile station network capability field reported by the user equipment. For details, refer to related content in the embodiment shown in FIG. 2. It can be understood that, before determining whether the user equipment has the capability of accessing the second network, when the user equipment has the capability of accessing the second network, performing the pre-judging mechanism of the embodiment of the present invention can avoid unnecessary unnecessary signaling interaction. .
  • the sending unit 202 may be configured to send a downlink message carrying the failure indication information to the base station device.
  • the downlink message includes one or more of the following: a radio access bearer assignment message, a redirect request message, a direct migration message, a base station subsystem packet flow context request, a public identity message, a packet switched handover request message, or Downstream unit data message.
  • step 108 For the related example of the foregoing downlink message, refer to the content of step 108 in the embodiment shown in FIG. 2 .
  • the requesting unit 201 may be configured to obtain subscription data of the user equipment in the second network by sending an update location request message to a home subscriber server of the second network.
  • the sending of the update location request message to the home subscriber server please refer to the related description of step 103 in the embodiment shown in FIG. 2.
  • the mobility management network element may further include a receiving unit 204, and a confirming unit 205.
  • the receiving unit 204 may be configured to receive an update location response message sent by the home subscriber server; the confirming unit 205 may be configured to: according to the update location response message, confirm that the subscription data of the user equipment in the second network fails.
  • the confirming unit 205 may be configured to: according to the update location response message, confirm that the subscription data of the user equipment in the second network fails.
  • the mobility management network element may further include a learning unit 206.
  • the learning unit 206 is configured to learn, by receiving the access request sent by the user equipment, that the user equipment requests to access the first network.
  • the process of the access management method provided by the embodiment of the present invention may be implemented by the mobility management network element device shown in FIG. Referring to the embodiment shown in FIG. 2, no further details are provided herein.
  • the mobile device management device shown in FIG. 3 can be configured to determine that the user equipment is not allowed to access the second network when accessing the first network, so that the base station device of the first network may not be notified in advance.
  • the user equipment is preferably accessed by the second network, which prevents the user equipment from frequently switching between the first network and the second network, reduces the impact of the network, improves the stability of the service, and ensures the user experience.
  • the processing unit and the communication unit of the mobility management network element may be enhanced to implement the technical solution in the embodiment shown in FIG. 2.
  • the mobility management network element is used in a first network, including a processing unit 301 and a communication unit 302.
  • the processing unit 301 is configured to request, when the user equipment requests to access the first network, to obtain the subscription data of the user equipment in the second network by using the communication unit 302, and when the subscription data fails to be obtained, the communication unit 302
  • the base station device of the first network sends the failure indication information, where the failure indication information is used to indicate that the second network access is not selected for the user equipment.
  • the mobility management network element used in the first network may also be understood as the mobile management network element belongs to the first network, or the first network includes the mobility management network element.
  • the mobility management network element may be the SGSN in the embodiment shown in FIG. 2, and the first network may be a 2/3G network in the embodiment shown in FIG. 2, and the second network may be as shown in FIG.
  • the base station device of the first network may be the BSC or the RNC in the embodiment shown in FIG. 2
  • the failure indication information may be the failure indication information in the embodiment shown in FIG.
  • step 101 in the embodiment shown in FIG. 2 can be referred to.
  • the processing unit 301 is further configured to determine that the user equipment has the capability of accessing the second network. For example, whether the user equipment has the capability of accessing the second network may be determined according to the evolved packet core network capability parameter in the mobile station network capability field reported by the user equipment. For details, refer to related content in the embodiment shown in FIG. 2. It can be understood that, first, determining whether the user equipment has the capability of accessing the second network, and performing the present invention when the user equipment has the capability of accessing the second network. The pre-judging mechanism of the embodiment can avoid subsequent unnecessary signaling interactions.
  • the processing unit 301 is specifically configured to send, by using the communication unit 302, a downlink message carrying the failure indication information to the base station device, where the downlink message includes one or more of the following messages: a radio access bearer. Assign a message, a redirect request message, a direct migration message, create a base station subsystem packet flow context request, a public identity message, a packet switched handover request message, or a downlink unit data message.
  • a radio access bearer Assign a message, a redirect request message, a direct migration message, create a base station subsystem packet flow context request, a public identity message, a packet switched handover request message, or a downlink unit data message.
  • a radio access bearer Assign a message, a redirect request message, a direct migration message, create a base station subsystem packet flow context request, a public identity message, a packet switched handover request message, or a downlink unit data message.
  • the processing unit 301 may be specifically configured to send, by using the communication unit 302, an update location request message to the home subscriber server to request to acquire subscription data of the user equipment in the second network.
  • an update location request message to the home subscriber server to request to acquire subscription data of the user equipment in the second network.
  • the sending of the update location request message to the home subscriber server please refer to the related description of step 103 in the embodiment shown in FIG. 2.
  • the processing unit 301 is further configured to receive, by the communication unit 302, an update location response message sent by the home subscriber server, and confirm, according to the update location response message, that acquiring the subscription data of the user equipment in the second network fails.
  • the processing unit 301 is further configured to receive, by the communication unit 302, an update location response message sent by the home subscriber server, and confirm, according to the update location response message, that acquiring the subscription data of the user equipment in the second network fails.
  • the processing unit 301 is further configured to receive, by the communication unit 302, an access request sent by the user equipment, to learn that the user equipment requests to access the first network.
  • the user equipment When the user equipment accesses the first network, it is determined that the user equipment is not allowed to access the second network, so that the base station device of the first network may not be notified in advance.
  • the user equipment is preferably accessed by the second network, which prevents the user equipment from frequently switching between the first network and the second network, reduces the impact of the network, improves the stability of the service, and ensures the user experience.
  • the processing unit 301 can be implemented by a dedicated processing chip, a processing circuit, a processor, or a general purpose chip.
  • the communication unit 302 can be implemented by a dedicated chip through a transceiver circuit or a transceiver.
  • the mobile management network element provided by the embodiment of the present invention may be implemented by using a general-purpose computer.
  • program code that implements the functions of the request unit 201 and the transmitting unit 202 in the embodiment shown in FIG. 3 is stored in a memory, and the processor implements the functions of the request unit 201 and the transmitting unit 202 by executing code in the memory.
  • the program code that implements the functions of the processing unit 301 and the communication unit 302 in the embodiment shown in FIG. 4 is stored in a memory, and the processor implements the functions of the processing unit 301 and the communication unit 302 by executing code in the memory.
  • the mobility management network element shown in FIG. 3 or FIG. 4 can form an access system with the base station device of the first network to implement the technical solution in the embodiment shown in FIG. 2 .
  • the system can also include user equipment.
  • the system can avoid the ping-pong phenomenon caused by frequent switching between the first network and the second network by the user equipment, thereby reducing the impact on the network, improving the stability of the service, and ensuring the user experience.
  • an LTE system may also be referred to as an LTE network
  • a UMTS system may be referred to as a UMTS network
  • a GPRS system may be referred to as a GPRS network.
  • the information can be represented by any technical techniques, for example, the information can be data, instructions, commands, information, signals, Bits, symbols, etc.; technical methods may include representation by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, or light fields or optical particles.
  • a general purpose processor may be a microprocessor.
  • the general purpose processor may be any conventional processor, controller, microcontroller, or state machine.
  • the processor may also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other similar configuration. achieve.
  • the steps of the method or algorithm described in the embodiments of the present invention may be directly embedded in hardware, a software unit executed by a processor, or a combination of the two.
  • the software unit can be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium in the art.
  • the storage medium can be coupled to the processor such that the processor can read information from the storage medium and can write information to the storage medium.
  • the storage medium can also be integrated into the processor.
  • the processor and the storage medium may be disposed in an ASIC, and the ASIC may be disposed in the UE. Alternatively, the processor and the storage medium may also be located in different components in the UE.
  • the above-described functions described in the embodiments of the present invention may be implemented in hardware, software, firmware, or any combination of the three. If implemented in software, these functions may be stored on a computer readable medium or transmitted as one or more instructions or code to a computer readable medium.
  • Computer readable media includes computer storage media and communication media that facilitates the transfer of computer programs from one place to another.
  • the storage medium can be any available media that any general purpose or special computer can access.
  • Such computer-readable media can include, but is not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage or other magnetic storage device, or any other device or data structure that can be used for carrying or storing Other media that can be read by a general purpose or special computer, or a general purpose or special processor.
  • any connection can be appropriately defined as a computer readable medium, for example, if the software is from a website site, server or other remote source through a coaxial cable, fiber optic computer, twisted pair, digital subscriber line (DSL) Or in, for example, infrared, Wireless transmissions such as wireless and microwave are also included in the defined computer readable medium.
  • the disks and discs include compact disks, laser disks, optical disks, DVDs, floppy disks, and Blu-ray disks. Disks typically replicate data magnetically, while disks typically optically replicate data with a laser. Combinations of the above may also be included in a computer readable medium.

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Abstract

本发明实施例提供一种接入方法、装置和系统。该方法包括：当第一网络的移动管理网元获知用户设备UE请求接入第一网络时，该移动管理网元请求获取该UE在第二网络中的签约数据；当该移动管理网元获取该签约数据失败时，该移动管理网元向该第一网络的基站设备发送失败指示信息；其中，该失败指示信息用于指示不为该UE选择该第二网络接入。通过该方法，可以提高业务稳定性。

Description

一种接入方法、装置和系统 技术领域
本发明涉及通信技术领域，特别是涉及一种接入方法、装置和系统。
背景技术
目前4G(英文：generation)网络发展迅速，在很多国家和地区在部署有2G或者3G网络的基础上，再部署4G网络。其中，2G网络和3G网络可以归为一类，称为2/3G网络。同时支持2/3G网络和4G网络的用户设备也大量普及。
在同时部署2/3G网络和4G网络的场景下，2/3G网络和4G网络的覆盖区域会有重叠。当上述用户设备移动到2/3G网络和4G网络重叠的覆盖区域时，基站设备可能会将上述用户设备优选接入到4G网络。
在该场景下，上述用户设备可能会出现业务中断的情况，导致业务稳定性差，用户体验不佳。
发明内容
本发明实施例提供一种接入方法、装置和系统，用以提高业务稳定性。
第一方面，本发明实施例提供一种接入方法，包括：当第一网络的移动管理网元获知用户设备UE请求接入第一网络时，该移动管理网元请求获取该UE在第二网络中的签约数据；当该移动管理网元获取该签约数据失败时，该移动管理网元向该第一网络的基站设备发送失败指示信息；其中，该失败指示信息用于指示不为该UE选择该第二网络接入。
示例性的，该失败指示信息可以具体用于指示在一段时间内不为该UE选择该第二网络接入。
可以理解，当该基站设备收到该指示信息后，该基站设备不会再为该用户设备选择第二网络接入，因此可以避免该用户设备在第一网络和第二网络之间频繁切换导致的网络冲击，提高了业务的稳定性，保障了用户体验。
结合第一方面，在第一方面的第一种可能的实现方式中，在该移动管理网元请求获取该UE在第二网络中的签约数据之前还包括：该移动管理网元确定该UE具有接入该第二网络的能力。
可以理解，预先判断用户设备具有接入第二网络的能力，再去获取该用户设备在第二网络中的签约数据，可以避免为不具有接入第二网络能力的用户设备去获取该用户设备在第二网络中签约数据，因此可以省去不必要的信令交互，提升技术方案的效率。
结合第一方面或者第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，该移动管理网元向该第一网络的基站设备发送失败指示信息包括：该移动管理网元发送携带该失败指示信息的下行消息至该基站设备；其中，该下行消息包括如下消息中的一个或多个：无线接入承载指派消息、重定向请求消息、直接迁移消息、创建基站子系统分组流上下文请求、公共标识消息、分组交换切换请求消息或者下行单元数据消息。
可以理解，利用这些消息可以避免对现有系统作较大的改动，有利于本发明实施例的技术方案的落地。
结合第一方面、第一方面的第一种实现方式或者第二种实现方式，在第一方面的第三种实现方式中，该移动管理网元请求获取该UE在第二网络中的签约数据包括：该移动管理网元通过向第二网络的归属用户服务器发送更新位置请求消息来请求获取该用户设备在第二网络中的签约数据。
结合第一方面的第三种实现方式，在第一方面的第四种实现方式中，该方法还包括：该移动管理网元接收该归属用户服务器发送的更新位置响应消息，并根据该更新位置响应消息确认获取该用户设备在第二网络中的签约数据失败。
可以理解，通过是否能成功获取用户设备在第二网络中的签约数据可以十分便捷的判断是否允许该用户设备接入第二网络，实现上简单且高效。
结合第一方面、或者第一方面的第一至第四种实现方式中的一种，在第一方面的第五种实现方式中，该第一网络为2/3G网络，该第二网络为4G网络。
结合第一方面，或者第一方面的第一至第五种实现方式中的一种，在第一方面的第六种实现方式中，该移动管理网元获知用户设备请求接入第一网络可以包括：该移动管理网元通过接收该用户设备发送的接入请求获知该用户设备请求接入第一网络。示例性的，该接入请求包括附着请求或者路由区域更新请求。
第二方面，本发明实施例提供一种移动管理网元装置，用于第一网络，包括：请求单元，用于当获知用户设备UE请求接入第一网络时，请求获取该UE在第二网络中的签约数据；发送单元，用于当获取该用户设备在第二网络中的签约数据失败时，向该第一网络的基站设备发送失败指示信息；其中，该失败指示信息用于指示不为该UE选择该第二网络接入。
结合第二方面，在第二方面的第一种实现方式中，该装置还包括：确定单元，用于确定该UE具有接入该第二网络的能力。
结合第二方面或者第二方面的第一种实现方式，在第二方面的第二种实现方式中该发送单元具体用于发送携带该失败指示信息的下行消息至该基站设备；其中，该下行消息包括如下消息中的一个或多个：无线接入承载指派消息、重定向请求消息、直接迁移消息、创建基站子系统分组流上下文请求、公共标识消息、分组交换切换请求消息或者下行单元数据消息。
结合第二方面，或者第二方面的第一种实现方式或者第二种实现方式，在第二方面的第三种实现方式中，该请求单元具体用于通过向归属用户服务器发送更新位置请求消息来请求获取该用户设备在第二网络中的签约数据。
结合第二方面的第三种实现方式，在第二方面的第四种实现方式中，该装置还包括：接收单元，用于接收该归属用户服务器发送的更新位置响应消息；确认单元，用于根据该更新位置响应消息确认获取该用户设备在第二网络中的签约数据失败。
结合第二方面，或者第二方面的第一种至第四种实现方式中的一种，在第二方面的第五种实现方式中，该第一网络为2/3G网络，该第二网络为4G网络。
结合第二方面，或者第二方面的第一种至第五种实现方式中的一种，在第 二方面的第六种实现方式中，该装置还包括获知单元，用于通过接收该用户设备发送的接入请求获知该用户设备请求接入第一网络。示例性的，该接入请求包括附着请求或者路由区域更新请求。
第三方面，本发明实施例提供一种接入系统，包括：上述第二方面、或者第二方面的第一至第五种实现方式中的一种的移动管理网元装置和该基站设备。
结合第三方面，在第三方面的第一种实现方式中，该系统还包括该用户设备。
第四方面，本发明实施例提供一种移动管理网元，包括通信单元和处理单元，该处理单元用于当获知用户设备UE请求接入第一网络时通过该通信单元请求获取该UE在第二网络中的签约数据，当获取该用户设备在第二网络中的签约数据失败时，通过该通信单元向该第一网络的基站设备发送失败指示信息；其中，该失败指示信息用于指示不为该UE选择该第二网络接入；其中，该第一网络包括该移动管理网元。
结合第四方面，在第四方面的第一种可能的实现方式中，该处理单元还用于确定该UE具有接入该第二网络的能力。
结合第四方面，或者第四方面的第一种可能的实现方式，在第四方面的第二种可能的实现方式中该处理单元具体用于通过该通信单元发送携带该失败指示信息的下行消息至该基站设备；其中，该下行消息包括如下消息中的一个或多个：无线接入承载指派消息、重定向请求消息、直接迁移消息、创建基站子系统分组流上下文请求、公共标识消息、分组交换切换请求消息或者下行单元数据消息。
结合第四方面，或者第四方面的第一种可能的实现方式，或者第四方面的第二种可能的实现方式中，在第四方面第三种可能的实现方式中该处理单元具体用于通过该通信单元向第二网络的归属用户服务器发送更新位置请求消息来请求获取该用户设备在第二网络中的签约数据。
结合第四方面的第三种可能的实现方式，在第四方面的第四种可能的实现 方式中该处理单元还用于通过该通信单元接收该归属用户服务器发送的更新位置响应消息，并根据该更新位置响应消息确认获取该用户设备在第二网络中的签约数据失败。
结合第四方面，或者第四方面的第一至第四种可能的实现方式中的一种，在第四方面的第五种实现方式中该第一网络为2/3G网络，该第二网络为4G网络。
结合第四方面，或者第四方面的第一至第五种可能的实现方式中的一种，在第四方面的第六种实现方式中，该处理单元还可以用于通过通信单元接收该用户设备发送的接入请求获知该用户设备请求接入第一网络。示例性的，该接入请求可以包括附着请求或者路由区域更新请求。
本发明实施例提供的接入方法、装置和系统，通过预先判断用户设备是否允许接入第二网络，并在不允许接入的情况下指示第一网络的基站设备不为该用户设备选择第二网络接入，能够避免用户设备在第一网络和第二网络之间频繁切换导致的网络冲击，提高了业务稳定性，保障了用户体验。
为了便于理解，示例性的给出了与部分与本发明相关概念的说明以供参考。如下所示：
第三代合作伙伴计划(英文：3rd generation partnership project，简称3GPP)是一个致力于发展无线通信网络的项目。通常，将3GPP相关的机构称为3GPP机构。
无线通信网络，是一种提供无线通信功能的网络。无线通信网络可以采用不同的通信技术，例如例如码分多址(英文：code division multiple access,简称CDMA)、宽带码分多址(wideband code division multiple access，简称WCDMA)、时分多址(英文：time division multiple access,简称：TDMA)、频分多址(英文：frequency division multiple access,简称FDMA)、正交频分多址(英文：orthogonal frequency-division multiple access,简称：OFDMA)、单载波频分多址(英文：single Carrier fDMA,简称：SC-FDMA)。根据不同网络的容量、速率、时延等因素可以将网络分为2G(英文：generation)网络、3G网络或者4G网络。典型的2G网络包括全球移动通信系统(英文：global system for mobile communications/ general packet radio service，简称：GSM)网络或者通用分组无线业务(英文：general packet radio service，简称：GPRS)网络，典型的3G网络包括通用移动通信系统(英文：universal mobile telecommunications system，简称：UMTS)网络，典型的4G网络包括长期演进(英文：long term evolution,简称：LTE)网络。其中，UMTS网络有时也可以称为通用陆地无线接入网(英文：universal terrestrial radio access network，简称：UTRAN)，LTE网络有时也可以称为演进型通用陆地无线接入网(英文：evolved universal terrestrial radio access network，简称：E-UTRAN)。通常，将2G网络和3G网络归为一类，称为2/3G网络，将4G网络单独归为一类。本领域技术人员应知，随着技术的发展本发明实施例提供的技术方案同样可以应用于其他的无线通信网络，例如4.5G或者5G网络。为了简洁，本发明实施例有时会将无线通信网络简称为网络。为了便于描述，本发明的实施例以2/3G网络和4G网络为例进行说明。
用户设备(英文：user equipment，简称：UE)是一种终端设备，可以是可移动的终端设备，也可以是不可移动的终端设备。该设备主要用于接收或者发送业务数据。用户设备可分布于网络中，在不同的网络中用户设备有不同的名称，例如：终端，移动台，用户单元，站台，蜂窝电话，个人数字助理，无线调制解调器，无线通信设备，手持设备，膝上型电脑，无绳电话，无线本地环路台等。该用户设备可以经无线接入网(Radio Access Network，简称：RAN)与一个或多个核心网进行通信，例如与无线接入网交换语音和/或数据。
基站(英文：base station，简称：BS)设备，也可称为基站，是一种部署在无线接入网用以提供无线通信功能的装置。例如在2G网络中提供基站功能的设备包括基地无线收发站(英文：base transceiver station,简称：BTS)和基站控制器(英文：base station controller,简称：BSC，3G网络中提供基站功能的设备包括节点B(英文简称：NodeB)和无线网络控制器(英文：radio network controller,简称：RNC)，在4G网络中提供基站功能的设备包括演进的节点B(英文：evolved NodeB简称：eNB或者eNodeB)。
移动管理网元(英文：mobile management network element,简称：MMNE) 是一种部署在核心网用于对UE进行移动性管理的装置。例如，在2/3G网络中，移动管理网元包括GPRS业务支持节点(英文：serving GPRS support node,简称：SGSN)，在4G网络中，移动管理网元包括移动管理实体(英文：mobility management entity,简称：MME)。在同时部署2/3G网络和4G网络的场景下，可以将2/3G网络和4G网络的移动管理网元部署在同一个网元上，也称为将2/3G网络和4G网络的移动管理网元合设在同一网元上。通常将合设有2/3G网络的移动管理网元和4G网络的移动管理网元的网元称为融合移动管理网元。
归属用户服务器(英文：home subscriber server，简称：HSS)是一种存储UE的签约数据的装置，通常部署在核心网。示例性的，HSS可以存储UE在4G网络的签约数据，并与4G网络的移动管理网元相连。
归属位置寄存器(英文：home location register，简称：HLR)是一种存储UE的签约数据的装置，通常部署在核心网。示例性的，HLR可以存储UE在2/3G网络的签约数据，并与2/3G网络的移动管理网元相连。
其中，HSS和HLR可以部署在同一个设备上，也可以分别部署在不同的设备上。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的一种组网架构示意图；
图2为本发明实施例提供的一种接入方法的流程示意图；
图3为本发明实施例提供的一种移动管理网元的结构示意图；
图4为本发明实施例提供的另一种移动管理网元的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有付出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例描述的网络架构以及业务场景是为了更加清楚的说明本发明实施例的技术方案，并不构成对于本发明实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本发明实施例提供的技术方案对于类似的技术问题，同样适用。
下面以同时部署2/3G网络与4G网络的场景为例进行说明。
图1是一种同时部署2/3G网络和4G网络的网络架构示意图。为了便于理解，该网络架构仅仅示出了2/3网络的移动管理网元SGSN、4G网络的移动管理网元MME、HSS、HLR、2G网络的基站设备BSC和BTS、3G网络的基站设备RNC和NodeB、4G网络的基站设备eNodeB以及用户设备UE。本领域技术人员应理解，在实际部署中的网元和网络架构会有所不同。本领域技术人员应知上述网络架构仅仅是本发明实施例的一种应用场景的举例，示例性的，也可以应用在2G网络和4G网络同时部署的场景，或者3G网络和4G网络同时部署的场景。
如图1所示：
SGSN作为2/3G网络的移动管理网元与2/3G网络的基站设备BSC和/或RNC相连，并且与存储有2/3G网络的用户签约数据的HLR相连。HSS与4G网络的移动管理网元MME相连。HSS中存储有4G网络的用户签约数据。在本发明的一个设计中，SGSN与MME互联，并通过MME向HSS查询UE的4G网络签约数据。在本发明的另一个设计中，SGSN直接与HSS互联查询UE的4G网络签约数据。在本发明的再一个设计中，HLR与HSS互联，SGSN通过HLR向HSS查询UE的4G网络签约数据。
MME作为4G网络的移动管理网元，与4G网络的基站设备eNodeB相连，且与存储有4G网络的用户的签约数据的HSS相连。
本领域技术人员可以理解，SGSN和MME可以分别单独部署在不同的设备上，也可以合设在同一个设备上，此处不做赘述。
UE可以支持2/3G网络与4G网络，即支持与2/3G网络的基站，以及4G网络的基站进行无线通信。实际的无线通信网络中，有大量的UE，此处仅示出一个UE作为示例。本领域技术人员可以理解，随着技术的发展，2/3G网络的基站和4G网络的基站，在物理上可以是分离的设备，也可以合设在同一个设备上。
HLR用于存储该UE对应的2/3G网络的签约数据。当该UE的用户与移动运营商签约2G网络进行业务时，HLR中会存储该UE对应于2G网络的签约数据，表明该UE可以接入2G网络进行业务。同样，当该UE的用户与移动运营商签约3G网络进行业务时，HLR会存储该UE对应于3G网络的签约数据。
HSS用于存储该UE的对应的4G网络的签约数据。当该UE的用户与移动运营商签约4G网络进行业务时，HSS会存储该UE对应于4G网络的签约数据。相应的，例如当HSS中不存在4G网络的签约数据时，该UE接入4G网络的请求会被拒绝。
为了便于叙述，UE的用户签约了2G、3G或者4G网络也可以称作该UE签约了2G、3G或者4G网络。
在同时部署2/3G网络和4G网络的场景下，2/3G网络和4G网络的覆盖区域会有重叠。该UE在重叠的覆盖区域中，可以与BTS、NodeB或者eNodeB中任意一个基站进行无线通信。
由于4G网络商用不久，网络中存在大量的可以支持2/3G网络和4G网络的UE，但是这些UE的用户可能只与运行商签约了2/3G网络，并没有签约4G网络。当这些UE接入2/3G网络后，由于这些UE支持4G网络，2/3G网络的基站设备会为上述UE优选接入到4G网络。但是由于这些UE并没有签约4G网络，会被4G网络拒绝接入，随后这些UE会再次接入2/3G网络。再次接入2/3G网络后，2/3G网络的基站设备又会将这些UE优选接入到4G网络，导致这些UE在2/3G网络和4G网络之间频繁切换，产生乒乓现象，对网络造成冲 击，造成业务不稳定。
为了解决上述问题，可以考虑在UE接入2/3G网络时，引入预判机制，预先在UE接入2/3G网络时就预先判断UE是否可以接入4G网络。例如，可以在UE驻留在2/3G网络时由2/3G网络的移动管理网元判断UE是否允许接入4G网络，并在该UE不允许接入4G网络的情况下，通知2/3G网络的基站不为该UE优选4G网络接入，从而能够避免该UE持续在2/3G网络和4G网络之间切换，提高业务稳定性。另外，对于不为该UE优选接入4G网络的操作还可以设置一个有效期，即当超过该有效期后，2/3G网络的基站又可以恢复为该UE优选接入4G网络，便于该UE的用户一旦与运行商签约4G网络后，可以优选接入4G网络。
作为实现方式之一，可以通过是否可以成功获取该UE的对应的4G网络的签约数据来判断是否允许该UE接入4G网络。示例性的，可以考虑由SGSN与HSS交互请求获取该UE对应的4G网络的签约数据，若获取失败，则可以确定该UE不允许接入4G网络。
根据上述的分析，在本发明实施例的提供的方案中：
当第一网络的移动管理网元获知用户设备请求接入第一网络时，该移动管理网元请求获取该用户设备在第二网络中的签约数据；当该移动管理网元获取该签约数据失败时，该移动管理网元向该第一网络的基站设备发送失败指示信息，该失败指示信息用于指示不为该用户设备选择该第二网络接入。
为了更清楚的说明本发明实施例的技术方案，以下将结合图1所示的网络架构来进行说明。
本发明实施例中以4G网络为LTE网络，2G网络为GPRS网络，3G网络为UMTS网络为例进行说明。
示例性的，图2示出了一种接入方法的流程示意图。图2所示的接入方法中引入了上述预判机制，在图2的举例中，该UE没有签约4G网络，因此HSS中并不存在该UE对应的4G网络的签约数据。
如图2所示：101、UE通过BSC或者RNC向SGSN发送接入请求。
其中，该接入请求用于请求接入该SGSN对应的2/3G网络。这里，请求接入该SGSN对应的2/3G网络可以做广义的理解，即也可以理解为请求继续驻留在该SGSN对应的2/3G网络。
示例性的，该接入请求可以包括附着请求(英文：attach request)，或者路由区更新(英文：routing area update request，简称RAU)请求。
示例性的，该UE可以开机后执行步骤101，也可以在需要从其他网络切换至2/3G网络时执行步骤101，还可以在该UE接入2/3G网络后执行步骤101。
通过步骤101，SGSN获知UE选择2/3G网络为其驻留的网络，即SGSN获知UE请求接入2/3G网络。在步骤101后，SGSN可以执行上述预判机制，来确定该UE是否允许接入4G网络。
步骤103-104为上述预判机制的一种实现。
103、SGSN向HSS发送更新位置请求消息。
其中，SGSN通过该位置更新请求消息来请求获取该UE在4G网络的签约数据。
示例性的，该更新位置请求中可以包括UE的UE ID(中文：标识，英文：identity)用以指示获取该UE ID对应的UE在4G网络中的签约数据。
104、HSS向SGSN发送更新位置响应消息。
示例性的，由于该UE没有签约4G网络，该更新位置响应中不会携带该UE对应的4G网络的签约数据。
可选的，由于该UE没有签约4G网络，该更新位置响应中可以携带指示信息，用于指示无法获取该UE对应的4G网络的签约数据，也可以理解为不存在该UE对应的4G网络的签约数据。示例性的，该指示信息可以通过result信元实现，当result信元取值为:
DIAMETER_ERROR_USER_UNKNOWN(5001)、
DIAMETER_ERROR_UNKNOWN_EPS_SUBSCRIPTION(5420)、
DIAMETER_ERROR_RAT_NOT_ALLOWED(5421)、或者
DIAMETER_ERROR_ROAMING_NOT_ALLOWED(5004)时表示无法获取 该UE对应的4G网络的签约数据。
根据上述更新位置响应消息，SGSN可以确认获取UE在4G网络中的签约数据失败。
可选的，SGSN可多次请求获取该UE在4G网络中的签约数据，即在步骤103和104后SGSN没有获取到该UE对应的4G网络的签约数据时，可以再次通过步骤103和104尝试获取该UE在4G网络中的签约数据。这样可以避免由于其他原因造成无法获取UE在4G网络中的签约数据，例如：SGSN和HSS之间的连接暂时中断或者HSS过载等原因。
可以理解，在UE没有签约4G网络的情况下，会造成SGSN获取该UE在4G网络的签约数据失败，即表示不允许该UE接入4G网络。
可选的，在步骤103-104前，SGSN还可以先确定该UE是否具有接入4G网络的能力。示例性的，可以根据该UE上报的移动台网络能力(英文：mobile station network capability)字段中的演进的分组核心网能力(英文：evolved packet core capabiltiy)参数判断该UE是否具有接入4G网络的能力。例如，该UE的演进的分组核心网能力参数为1表示其具有接入4G网络的能力，为0表示其不具有接入4G网络的能力。可以理解是，对于不具有接入4G网络的能力的用户设备，该用户设备不会与4G网络的基站设备通信，因此不会造成频繁在2/3G网络和4G网络之间切换，可以不必执行步骤103-104。本领域技术人员可以理解，为了实现上的便利，即使对于不具有接入4G网络能力的用户设备，也可以执行步骤103-104。
由于步骤103-104中SGSN获取该UE对应的4G网络的签约数据失败，可以考虑指示BSC或者RNC不将该UE优先接入4G网络，这样可以避免UE持续的在2/3G网络和4G网络之间切换，减轻了网络的压力，也有利于保持业务的稳定性。
作为一种可选的实现方式，可以考虑由2/3G网络的移动管理网元，即SGSN，发送失败指示信息来指示2/3G的基站设备不再将该UE优先接入4G网络。例如：
108、SGSN发送失败指示信息至BSC/RNC。
其中，该失败指示信息用于指示BSC/RNC不将该UE优先接入4G网络。当BSC/RNC收到该失败指示信息后，BSC/RNC不会为该UE选择4G网络接入。本领域技术人员应知，该失败指示信息所指示信息的表述可以有多种，例如：禁止为该UE优先选择4G网络接入，停止将该UE优先接入4G网络，本发明对此不作限制。
本领域技术人员应知，SGSN可以通过下行消息来发送该失败指示信息至BSC/RNC。其中，下行消息包括如下举例中的一个或多个消息。
示例性的，2/3G网络的移动管理网元可以通过无线接入承载指派请求(英文：rab assignment request)消息或者重定向请求(英文：relocation request)消息将该失败指示信息发送至RNC。其中，可以将这两条消息中的E-UTRANservice handover信元的值设置为“handover to E-UTRAN shall not be performed”来表示该失败指示信息。
示例性的，2/3G网络的移动管理网元还可以通过创建基站子系统分组流上下文请求(英文：create base station subsystem packet flow context request)消息、或者下行单元数据(英文：dl-unitdata)消息或者分组交换切换请求(英文：packet switch handover request)消息将该失败指示信息发送至BSC。其中，可以将这三条消息中的service UTRAN COO信元的值设置为“network initiated cell change order to E-UTRAN procedure shall be performed”来表示该失败指示信息。
示例性的，2/3G网络的移动管理网元还可以通过直接迁移(英文：direct transfer)消息、公共标识(英文：common ID)消息、创建基站子系统分组流上下文请求消息、下行单元数据消息或者分组交换切换请求消息中的无线接入技术用户描述标识(英文：subscriber profile ID for RAT)信元或者频率优先级(英文：priority)信元来表示该失败指示信息。
示例性的，还可以在上述消息中通过新增信元来表示该失败指示信息。
BSC/RNC收到该失败指示信息后，当UE在2/3G网络时，BSC/RNC不会再为该UE优选4G网络接入，因此UE不会频繁的在2/3G网络和4G网络之间 切换，缓解了乒乓现象，对业务稳定性有一定提高。
可选的，之后BSC/RNC可以对该失败指示信息进行响应，回复确认响应消息至SGSN，用以通知SGSN已经根据该失败指示信息进行了相应的操作。
示例性的，这里指示不再为该用户设备选择4G网络接入也可以理解为在一段时间内不再为该用户设备选择该4G网络接入，即在这段时间后，2/3G网络的基站设备可以重新为该UE优选选择4G网络接入。
在步骤101后，SGSN可以根据该UE的请求将该UE驻留在2/3G网络。例如：
102、SGSN执行认证、安全相关的流程。
步骤102为可选步骤。若需要执行该步骤，可以在步骤103之前执行。
105、SGSN获取该UE在2/3G网络中的签约数据。
106、SGSN通过BSC/RNC发送接入接受消息至该UE。
示例性的，该接入接收消息可以是附着接受消息或者路由区域更新接受消息。
示例性的，该接受接受消息可以被携带在直接迁移消息或者下行单元数据消息中发送。
107、UE通过BSC/RNC发送接入完成消息至SGSN。
示例性的，接入完成消息可以是附着完成消息或者路由区域更新完成消息。
至此，UE可以驻留在2/3G网络进行业务。
本领域技术人员应理解，步骤103、104和108与步骤105-107不存在时序关系。
可选的，当SGSN在步骤103-104中成功获取了该UE在4G网络中的签约数据时，SGSN可以通知BSC/RNC可以为该UE优选4G网络接入，以便该UE驻留在2/3G网络后可以再次选择4G网络接入，得到更好的网络服务和用户体验。
可选的，可以考虑在SGSN上设置一个定时器，当该定时器未超时的情况下，UE再次请求接入2/3G网络时，SGSN可以不必执行步骤103-105，以避免 短时间内SGSN频繁与HSS进行无意义的交互。
通过上述对于本发明实施例提供的接入方法的说明，可见在UE接入2/3G网络的过程中，预先指示2/3G网络的基站设备不将没有签约4G网络的用户设备优选4G网络接入，避免了没有签约4G网络的用户设备不断被2/3G网络的基站设备切换至4G网络而导致的4G网络和2/3G网络之间的频繁切换，减少了对网络造成的冲击，提高了业务的稳定性，增强了用户体验。
需要说明的是，本发明实施例中2/3G网络和4G网络仅仅是一种举例，并不构成本发明实施例对于无线通信网络的限定。
为了实现本发明实施例提供的接入方法，需要对现有的2/3G网络的移动管理网元进行修改，使其实现上述图2所示实施例的技术方案。
如图3所示，本发明实施例提供一种移动管理网元装置，用于第一网络，可以包括请求单元201和发送单元202。
其中：
请求单元201可以用于当获知用户设备请求接入第一网络时，请求获取该用户设备在第二网络中的签约数据。
本领域技术人员应知，该移动管理网元用于第一网络也可以理解为该移动管理网元属于该第一网络，或者第一网络包括该移动管理网元。
示例性的，该移动管理网元可以是图2所示实施例中的SGSN，该第一网络可以是图2所示实施例中的2/3G网络，该第二网络可以是图2所示实施例中的4G网络，该签约数据可以是图2所示实施例中的该UE在4G网络中的签约数据。
示例性的，该移动管理网元如何获知用户设备请求接入第一网络，可以参见图2所示实施例中步骤101的相关描述。
发送单元202可以用于当获取该签约数据失败时，向该第一网络的基站设备发送失败指示信息；其中，该失败指示信息用于指示不为该用户设备选择该第二网络接入。
示例性的，该失败指示信息可以参考图2所示实施例中的失败指示信息， 该第一网络的基站设备可以为图2所示实施例中的BSC或者RNC。
可选的，该移动管理网元还可以包括确定单元203。其中，确定单元203用于确定该用户设备具有接入该第二网络的能力。示例性的，可以根据用户设备上报的移动台网络能力字段中的演进的分组核心网能力参数判断该用户设备是否具有接入第二网络的能力。具体内容可以参考图2所示实施例中的相关内容。可以理解，先判断用户设备是否具有接入第二网络的能力，当该用户设备具有接入该第二网络能力的时再执行本发明实施例的预判机制可以避免后续不必要的信令交互。
具体的，发送单元202可以用于发送携带该失败指示信息的下行消息至该基站设备。其中，该下行消息包括如下消息中的一个或多个：无线接入承载指派消息、重定向请求消息、直接迁移消息、创建基站子系统分组流上下文请求、公共标识消息、分组交换切换请求消息或者下行单元数据消息。
其中，上述下行消息的相关举例说明请参见图2所示实施例中关于步骤108的内容。
具体的，请求单元201可以用于通过向第二网络的归属用户服务器发送更新位置请求消息来获取该用户设备在第二网络中的签约数据。示例性的，关于向归属用户服务器发送更新位置请求消息的相关说明请参考图2所示实施例中步骤103的相关说明。
可选的，该移动管理网元还可以包括接收单元204，和确认单元205。其中，该接收单元204可以用于接收该归属用户服务器发送的更新位置响应消息；该确认单元205可以用于根据该更新位置响应消息确认获取该用户设备在第二网络中的签约数据失败。相关的说明请参见图2所示实施例中步骤104的相关内容，此处不做赘述。
示例性的，该移动管理网元还可以包括获知单元206。其中，获知单元206用于通过接收该用户设备发送的接入请求获知该用户设备请求接入该第一网络。
图3所示的移动管理网元装置实现本发明实施例提供的接入方法的过程可 以参考图2所示的实施例，此处不做赘述。
通过图3所示的移动管理网元装置，可以使得用户设备在接入第一网络时，预先判断出该用户设备不允许接入第二网络，从而可以事先通知第一网络的基站设备不将该用户设备优选第二网络接入，避免了该用户设备在第一网络和第二网络之间频繁切换，减少了网络的冲击，提高了业务的稳定性，保障了用户的体验。
作为另一种实施方式，可以考虑对移动管理网元的处理单元和通信单元进行增强，以实现图2所示实施例中的技术方案。如图4所示，该移动管理网元用于第一网络，包括处理单元301和通信单元302。
其中：
处理单元301，用于当获知用户设备请求接入第一网络时通过通信单元302请求获取该用户设备在第二网络中的签约数据，当获取该签约数据失败时，通过该通信单元302向该第一网络的基站设备发送失败指示信息；其中，该失败指示信息用于指示不为该用户设备选择该第二网络接入。本领域技术人员应知，该移动管理网元用于第一网络也可以理解为该移动管理网元属于该第一网络，或者第一网络包括该移动管理网元。
示例性的，该移动管理网元可以为图2所示实施例中的SGSN，该第一网络可以为图2所示实施例中的2/3G网络，该第二网络可以为图2所示实施例中的4G网络，该第一网络的基站设备可以为图2所示实施例中的BSC或者RNC，该失败指示信息可以为图2所示实施例中的失败指示信息。
示例性的，该移动管理网元如何获知用户设备请求接入第一网络，可以参见图2所示实施例中步骤101的相关描述。
可选的，该处理单元301还用于确定该用户设备具有接入该第二网络的能力。示例性的，可以根据用户设备上报的移动台网络能力字段中的演进的分组核心网能力参数判断该用户设备是否具有接入第二网络的能力。具体内容可以参考图2所示实施例中的相关内容。可以理解，先判断用户设备是否具有接入第二网络的能力，当该用户设备具有接入该第二网络能力的时再执行本发明实 施例的预判机制可以避免后续不必要的信令交互。
具体的，该处理单元301可以具体用于通过该通信单元302发送携带有该失败指示信息的下行消息至该基站设备；其中，该下行消息包括如下消息中的一个或多个：无线接入承载指派消息、重定向请求消息、直接迁移消息、创建基站子系统分组流上下文请求、公共标识消息、分组交换切换请求消息或者下行单元数据消息。其中，上述下行消息的相关举例说明请参见图2所示实施例中关于步骤108的内容。
具体的，该处理单元301可以具体用于通过该通信单元302向归属用户服务器发送更新位置请求消息来请求获取该用户设备在第二网络中的签约数据。示例性的，关于向归属用户服务器发送更新位置请求消息的相关说明请参考图2所示实施例中步骤103的相关说明。
可选的，该处理单元301还可以用于通过该通信单元302接收该归属用户服务器发送的更新位置响应消息，并根据该更新位置响应消息确认获取该用户设备在第二网络中的签约数据失败。相关的说明请参见图2所示实施例中步骤104的相关内容，此处不做赘述。
可选的，该处理单元301还可以用于通过通信单元302接收该用户设备发送的接入请求来获知该用户设备请求接入该第一网络。
图4所示的移动管理网元实现本发明实施例提供的接入方法的过程可以参考图2所示的实施例，此处不做赘述。
通过图4所示的移动管理网元，可以使得用户设备在接入第一网络时，预先判断出该用户设备不允许接入第二网络，从而可以事先通知第一网络的基站设备不将该用户设备优选第二网络接入，避免了该用户设备在第一网络和第二网络之间频繁切换，减少了网络的冲击，提高了业务的稳定性，保障了用户的体验。
作为另一种实施方式，处理单元301可以考虑通过专用处理芯片、处理电路、处理器或者通用芯片实现。通信单元302可以考虑通过收发电路或者收发的专用芯片实现。
作为另一种实现方式，可以考虑使用通用计算机的方式来实现本发明实施例提供的移动管理网元。例如，将实现图3所示实施例中的请求单元201和发送单元202功能的程序代码存储在存储器中，处理器通过执行存储器中的代码来实现请求单元201和发送单元202的功能。再例如，将实现图4所示实施例中的处理单元301和通信单元302功能的程序代码存储在存储器中，处理器通过执行存储器中的代码来实现处理单元301和通信单元302的功能。
可以理解，上述实现方式只是一种举例，在具体实施过程中，还可以有其他的实现方式，此处不做限制。
本领域技术人员可以理解，从系统角度出发，图3或图4所示的移动管理网元可以和第一网络的基站设备组成一种接入系统来实现图2所示实施例中的技术方案；其中，该系统还可以包括用户设备。该系统可以避免产生用户设备在第一网络和第二网路之间频繁切换导致的乒乓现象，因此可以减少对网络的冲击，提升业务的稳定性，并保障用户体验。
本领域的技术人员可以理解，系统和网络经常交替使用，例如：LTE系统也可以称为LTE网络，UMTS系统可以称为UMTS网络，GPRS系统可以称为GPRS网络。
本领域技术人员能够理解，信息可以使用任何技术方法(technology techniques)来表示，例如：信息可以是数据(data)、指令(instructions)、命令(command)、信息(information)、信号(signal)、比特(bit)、符号(symbol)等；技术方法可以包括通过电压、电流、电磁波、磁场或磁粒(magnetic particles)、或者光场或光粒(optical particles)来表示。
本领域技术任何还可以了解到本发明实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现所述的功能，但这种实现不应被理解为超出本发明实施例保护的范围。
本发明实施例中所描述的各种说明性的逻辑单元和电路可以通过通用处理器，数字信号处理器，专用集成电路(ASIC)，现场可编程门阵列(FPGA)或其它可编程逻辑装置，离散门或晶体管逻辑，离散硬件部件，或上述任何组合的设计来实现或操作所描述的功能。通用处理器可以为微处理器，可选地，该通用处理器也可以为任何传统的处理器、控制器、微控制器或状态机。处理器也可以通过计算装置的组合来实现，例如数字信号处理器和微处理器，多个微处理器，一个或多个微处理器联合一个数字信号处理器核，或任何其它类似的配置来实现。
本发明实施例中所描述的方法或算法的步骤可以直接嵌入硬件、处理器执行的软件单元、或者这两者的结合。软件单元可以存储于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、可移动磁盘、CD-ROM或本领域中其它任意形式的存储媒介中。示例性地，存储媒介可以与处理器连接，以使得处理器可以从存储媒介中读取信息，并可以向存储媒介存写信息。可选地，存储媒介还可以集成到处理器中。处理器和存储媒介可以设置于ASIC中，ASIC可以设置于UE中。可选地，处理器和存储媒介也可以设置于UE中的不同的部件中。
在一个或多个示例性的设计中，本发明实施例所描述的上述功能可以在硬件、软件、固件或这三者的任意组合来实现。如果在软件中实现，这些功能可以存储与电脑可读的媒介上，或以一个或多个指令或代码形式传输于电脑可读的媒介上。电脑可读媒介包括电脑存储媒介和便于使得让电脑程序从一个地方转移到其它地方的通信媒介。存储媒介可以是任何通用或特殊电脑可以接入访问的可用媒体。例如，这样的电脑可读媒体可以包括但不限于RAM、ROM、EEPROM、CD-ROM或其它光盘存储、磁盘存储或其它磁性存储装置，或其它任何可以用于承载或存储以指令或数据结构和其它可被通用或特殊电脑、或通用或特殊处理器读取形式的程序代码的媒介。此外，任何连接都可以被适当地定义为电脑可读媒介，例如，如果软件是从一个网站站点、服务器或其它远程资源通过一个同轴电缆、光纤电脑、双绞线、数字用户线(DSL)或以例如红外、 无线和微波等无线方式传输的也被包含在所定义的电脑可读媒介中。所述的碟片(disk)和磁盘(disc)包括压缩磁盘、镭射盘、光盘、DVD、软盘和蓝光光盘，磁盘通常以磁性复制数据，而碟片通常以激光进行光学复制数据。上述的组合也可以包含在电脑可读媒介中。
本发明说明书的上述描述可以使得本领域技术任何可以利用或实现本发明的内容，任何基于所公开内容的修改都应该被认为是本领域显而易见的，本发明所描述的基本原则可以应用到其它变形中而不偏离本发明的发明本质和范围。因此，本发明所公开的内容不仅仅局限于所描述的实施例和设计，还可以扩展到与本发明原则和所公开的新特征一致的最大范围。

Claims (16)

  1. 一种接入方法，包括：
    当第一网络的移动管理网元获知用户设备UE请求接入第一网络时，所述移动管理网元请求获取所述UE在第二网络中的签约数据；
    当所述移动管理网元获取所述签约数据失败时，所述移动管理网元向所述第一网络的基站设备发送失败指示信息；其中，所述失败指示信息用于指示不为所述UE选择所述第二网络接入。
  2. 根据权利要求1所述的方法，其特征在于，在所述移动管理网元请求获取所述UE在第二网络中的签约数据之前还包括：
    所述移动管理网元确定所述UE具有接入所述第二网络的能力。
  3. 根据权利要求1或2所述的方法，其特征在于，所述移动管理网元向所述第一网络的基站设备发送失败指示信息包括：
    所述移动管理网元发送携带所述失败指示信息的下行消息至所述基站设备；其中，所述下行消息包括如下消息中的一个或多个：无线接入承载指派消息、重定向请求消息、直接迁移消息、创建基站子系统分组流上下文请求、公共标识消息、分组交换切换请求消息或者下行单元数据消息。
  4. 根据权利要求1-3任一项所述的方法，其特征在于，所述移动管理网元请求获取所述UE在第二网络中的签约数据包括：
    所述移动管理网元通过向所述第二网络的归属用户服务器发送更新位置请求消息来请求获取所述签约数据。
  5. 根据权利要求4所述的方法，还包括：
    所述移动管理网元接收所述归属用户服务器发送的更新位置响应消息；所述移动管理网元根据所述更新位置响应消息确认获取所述签约数据失败。
  6. 根据权利要求1-5任一项所述的方法，其特征在于，所述第一网络为2/3G网络，所述第二网络为4G网络。
  7. 根据权利要求1-6任一项所述的方法，其特征在于，所述第一网络的移动管理网元获知UE请求接入第一网络包括：
    所述移动管理网元通过接收所述UE发送的接入请求获知所述UE请求接入所述第一网络。
  8. 一种移动管理网元装置，用于第一网络，包括：
    请求单元，用于当获知用户设备UE请求接入第一网络时，请求获取所述UE在第二网络中的签约数据；
    发送单元，用于当获取所述签约数据失败时，向所述第一网络的基站设备发送失败指示信息；其中，所述失败指示信息用于指示不为所述UE选择所述第二网络接入。
  9. 根据权利要求8所述的装置，还包括：
    确定单元，用于确定所述UE具有接入所述第二网络的能力。
  10. 根据权利要求8或9所述的装置，其特征在于，所述发送单元具体用于发送携带所述失败指示信息的下行消息至所述基站设备；其中，所述下行消息包括如下消息中的一个或多个：无线接入承载指派消息、重定向请求消息、直接迁移消息、创建基站子系统分组流上下文请求、公共标识消息、分组交换切换请求消息或者下行单元数据消息。
  11. 根据权利要求8-10任一项所述的装置，其特征在于，所述请求单元具体用于通过向所述第二网络的归属用户服务器发送更新位置请求消息来请求获取 所述签约数据。
  12. 根据权利要求11所述的装置，还包括：
    接收单元，用于接收所述归属用户服务器发送的更新位置响应消息；
    确认单元，用于根据所述更新位置响应消息用确认获取所述签约数据失败。
  13. 根据权利要求8-12任一项所述的装置，其特征在于，所述第一网络为2/3G网络，所述第二网络为4G网络。
  14. 根据权利要求8-13任一项所述的装置，还包括：
    获知单元，用于通过接收所述UE发送的接入请求获知所述UE请求接入所述第一网络。
  15. 一种接入系统，其特征在于，包括：
    如权利要求8-13任一项所述的装置；和
    所述基站设备。
  16. 根据权利要求15所述的系统，其特征在于，还包括：
    所述UE。
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