WO2017045197A1 - 接入本地网络的方法和相关设备 - Google Patents

接入本地网络的方法和相关设备 Download PDF

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Publication number
WO2017045197A1
WO2017045197A1 PCT/CN2015/089982 CN2015089982W WO2017045197A1 WO 2017045197 A1 WO2017045197 A1 WO 2017045197A1 CN 2015089982 W CN2015089982 W CN 2015089982W WO 2017045197 A1 WO2017045197 A1 WO 2017045197A1
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Prior art keywords
local gateway
local
network
enb
gateway
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PCT/CN2015/089982
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English (en)
French (fr)
Inventor
靳维生
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华为技术有限公司
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Publication date
Priority to EP15903887.6A priority Critical patent/EP3340046B1/en
Priority to PCT/CN2015/089982 priority patent/WO2017045197A1/zh
Priority to CN202110596127.4A priority patent/CN113473454A/zh
Priority to EP21152235.4A priority patent/EP3897013B1/en
Priority to SG11201802201YA priority patent/SG11201802201YA/en
Priority to CN201580035322.2A priority patent/CN107615238B/zh
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to RU2018113692A priority patent/RU2693326C1/ru
Publication of WO2017045197A1 publication Critical patent/WO2017045197A1/zh
Priority to US15/923,905 priority patent/US10299309B2/en
Priority to US16/412,012 priority patent/US10743360B2/en
Priority to US16/945,356 priority patent/US11051351B2/en
Priority to US17/360,835 priority patent/US11838969B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
    • H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/005—Multiple registrations, e.g. multihoming
    • 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
    • H04W8/06—Registration at serving network Location Register, VLR or user mobility server
    • H04W8/065—Registration at serving network Location Register, VLR or user mobility server involving selection of the user mobility server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • 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
    • H04W8/08—Mobility data transfer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/02—Inter-networking arrangements

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and related device for accessing a local network.
  • LTE Long Term Evolution
  • EPC Long Term Evolution Core Network
  • BYOD Bring Your Own Device
  • Wi-Fi Wireless-FIdelity
  • the Wi-Fi connection needs to be disconnected first, which in turn causess users not to access the local network.
  • the carrier network for example, a high-bandwidth, high-quality 4G communication network
  • the embodiments of the present invention provide a method for accessing a local network and related devices, which are used to enable a user to simultaneously access an operator network and a local network.
  • a first aspect of the embodiments of the present invention provides a method for accessing a local network, where the method includes:
  • the mobile function management entity MME receives an access request of the user equipment UE sent by the base station eNB, where the access request carries the access information of the UE;
  • the MME Determining, by the MME, the first local gateway corresponding to the UE according to the access information of the UE, where the first local gateway is a gateway of the first local network;
  • the MME establishes, for the UE, a user plane bearer including the first local gateway as an intermediate node between the eNB and the core network gateway C-GW.
  • the mobile device management entity MME of the core network can determine the first local gateway corresponding to the UE according to the access information of the UE carried in the access request of the user equipment UE sent by the base station eNB, the first The local gateway is a gateway of the first local network, and establishes, for the UE, a user plane bearer including the first local gateway as an intermediate node between the gateway C-GW of the eNB and the core network, so that the user plane
  • the data is connected between the eNB and the gateway C-GW of the core network and the gateway of the first local network, and the UE can access the carrier network through the eNB at the same time.
  • the first local network can also be accessed, so that the user can access the carrier network and the local network at the same time.
  • the determining, by the MME, the first local gateway corresponding to the UE, according to the access information of the UE further includes:
  • the MME When it is determined that the eNB supports the local gateway connection, the MME triggers the step of determining, by the MME, the first local gateway corresponding to the UE according to the access information of the UE.
  • the eNB When the eNB supports the local gateway connection according to the function information of the eNB, the subsequent steps are triggered to prevent the system from performing redundant steps, thereby improving the efficiency of the system operation.
  • the access information includes the user identifier
  • the user identifier is used to uniquely identify the UE
  • the MME determines the first local gateway corresponding to the UE according to the access information of the UE, and specifically includes:
  • the MME searches for a first local gateway corresponding to the UE from the user management server according to the user identifier.
  • Searching the first local gateway corresponding to the UE from the user management server according to the user identifier ensures fast and accurate searching for the first local gateway.
  • the first local gateway is the highest priority among the multiple local gateways corresponding to the UE Local gateway.
  • a UE can correspond to multiple local gateways with high priority, which improves the adaptability of the solution to various scenarios.
  • the function information of the eNB further includes information about a local gateway accessed by the eNB;
  • the user information is included in the access information, where the user identifier is used to uniquely identify the UE;
  • the MME Determining, by the MME, the first local gateway corresponding to the UE according to the access information of the UE, specifically:
  • the MME Determining, by the MME, the first local gateway corresponding to the UE according to the information of the local gateway accessed by the eNB and the user identifier.
  • the first local gateway corresponding to the UE can be determined according to the user identifier and the information of the local gateway accessed by the eNB, which can better meet the actual needs of the user and improve the human-computer interaction performance.
  • the MME is the UE After the step of establishing a user plane bearer including the first local gateway as an intermediate node between the eNB and the C-GW, the method further includes:
  • the MME determines that the local gateway corresponding to the UE is updated to the third local gateway
  • the MME establishes, for the UE, that the third local gateway is included between the eNB and the C-GW.
  • the user plane of the intermediate node is carried, and the third local gateway is a gateway of the third local network.
  • the user plane bearer can be automatically re-established according to the update of the local network corresponding to the UE, which improves the user experience and improves the system intelligence.
  • the method further includes:
  • the UE can determine the corresponding subnet in the local network, and send a routing instruction to the local gateway, so that the local gateway routes the data of the UE accessing the local network to the subnet, thereby implementing precise control of the network access authority.
  • the MME obtains the first subnet corresponding to the UE according to the user identifier, specifically include:
  • the MME determines the first subnet corresponding to the UE according to the location information of the UE and/or the current time, and the user group.
  • the user group corresponding to the UE can be determined first, and then the first subnet corresponding to the UE is determined according to the related information, thereby implementing multiple precise control of the network access authority.
  • the MME establishes the eNB from the eNB to the core After the step of the user plane bearer including the first local gateway as the intermediate node between the network gateways C-GW, the method further includes:
  • the MME establishes, for the UE, a user plane bearer including the second local gateway as an intermediate node between the eNB and the C-GW.
  • the user plane bearer can be automatically re-established according to the update of the subnet corresponding to the UE, which improves the user experience and improves the system intelligence.
  • the MME determines that the gateway of the second local network is the second local gateway, and further includes :
  • the MME sends a third routing instruction to the second local gateway, where the third routing instruction includes an identifier of the third subnet and the user identifier, where the routing instruction is used to indicate that the UE is to be accessed.
  • the data of the second local network is routed to the third subnet.
  • the MME is After the step of establishing, by the UE, the user plane bearer including the local gateway as the intermediate node between the eNB and the C-GW, the method further includes:
  • the network name can be displayed on the user interface of the UE, so that the user can more intuitively understand which subnet is currently accessed, and improve the human-computer interaction performance.
  • the method further includes:
  • the MME notifies the current subnet corresponding to the UE to the C-GW;
  • the domain name resolution server address that is returned by the C-GW for the subnet corresponding to the UE, where the domain name resolution server of the domain name resolution server address identifier stores the network device in the subnet corresponding to the UE Correspondence between the domain name and the IP address;
  • the MME sends the domain name resolution server address assigned to the subnet corresponding to the UE to the UE.
  • the domain name resolution server address is assigned to the subnet corresponding to the UE, and the domain name is accurately parsed.
  • the method further includes:
  • the MME notifies the local network corresponding to the current UE to the C-GW;
  • the domain name resolution server address that is allocated by the C-GW for the local network corresponding to the UE, where the domain name resolution server of the domain name resolution server address identifier stores the network device in the local network corresponding to the UE Correspondence between the domain name and the IP address;
  • the MME sends the domain name resolution server address allocated to the local network corresponding to the UE to the UE.
  • the domain name resolution server address is assigned to the local network corresponding to the UE, and the domain name is accurately parsed.
  • the MME is the UE Establishing a user plane bearer that includes the first local gateway as an intermediate node between the eNB and the core network gateway C-GW, and specifically includes:
  • the user plane bearer with the local gateway as the intermediate node is successfully established, and the stability of the established user plane bearer is ensured.
  • a second aspect of the embodiments of the present invention provides a method for accessing a local network, where the method includes:
  • the local gateway receives the user plane establishment request sent by the mobile function management entity MME, where the user plane establishment request includes information carried by the gateway C-GW of the core network for the user plane carried by the local gateway to the C-GW.
  • the UE is accessed by the eNB by the eNB, and the local gateway is a local gateway corresponding to the UE;
  • the local gateway establishes, for the UE, a user plane bearer including the local gateway as an intermediate node from the eNB to the C-GW according to the user plane setup request.
  • the local gateway can establish a user plane bearer for the UE as an intermediate node, and implement the UE access to the operator network and the local network that uses itself as a gateway.
  • the method further includes:
  • the local gateway When it is determined that the data of the UE accessing the network is data accessing the local network, the local gateway routes data of the UE to access the network to the local network;
  • the present The gateway When determining that the data of the UE accessing the network is not accessing data of the local network, the present The gateway forwards the data of the UE accessing the network to the C-GW.
  • the local gateway establishes, according to the user plane setup request, the eNB from the eNB.
  • the step of the local gateway before the step of routing the data of the UE to access the network to the local network includes:
  • the step of routing data of the access network to the local network includes: the local gateway routing data of the UE to access the network to a subnet corresponding to the UE.
  • the local gateway After the local gateway establishes a user plane with the user as the intermediate node, the local gateway obtains the subnet corresponding to the UE, and routes the data of the UE to the local network to the subnet corresponding to the UE, thereby implementing fine control of the network access authority. .
  • the local gateway establishes, according to the user plane setup request, the eNB from the eNB.
  • the method further includes:
  • the local gateway receives a routing instruction sent by the MME, where the routing instruction includes a subnet identifier and a user identifier, where the user identifier is used to uniquely identify the UE, and the subnet identifier is used to uniquely identify a subnet;
  • the local gateway routes the data of the UE to the network to the local network, and specifically includes:
  • the local gateway routes the data of the UE accessing the network to the subnet identified by the subnet identifier in the routing instruction according to the routing instruction.
  • the MME obtains the subnet identifier corresponding to the UE, and the local gateway receives the routing instruction sent by the MME, and routes the data of the UE accessing the local network to the subnet identified by the subnet identifier according to the routing instruction. Achieve fine-grained control over network permissions and mitigate local gateways Data processing pressure.
  • the local gateway determines the received Whether the data accessed by the UE to the network is data for accessing the local network, specifically includes:
  • the local gateway When the local gateway receives the data of the UE accessing the network, the local gateway determines, according to the destination IP address of the data of the UE accessing the network, whether the data of the UE accessing the network is data for accessing the local network, where And storing, in the local gateway, a list of IP addresses of network devices of the local network.
  • the destination IP address of the data accessed by the UE to the network it is determined whether the data of the local network is accessed, and the accuracy of the judgment is ensured.
  • the local gateway receives the user plane established by the mobile function management entity MME. Requests, including:
  • the local gateway obtains an IP address and a tunnel endpoint identifier that are allocated by the C-GW to the user plane of the UE from the local gateway to the C-GW;
  • the local gateway establishes, according to the user plane establishment request, a user plane bearer that includes the local gateway as an intermediate node between the eNB and the C-GW, where the local gateway includes:
  • the local gateway allocates an IP address and a tunnel endpoint identifier from the C-GW to the local gateway for the user plane of the UE, and an IP address and a tunnel endpoint identifier from the eNB to the local gateway, and Transmitting, by the local gateway, an IP address and a tunnel endpoint identifier from the C-GW to the local gateway, and an IP address and a tunnel endpoint identifier from the eNB to the local gateway allocated by the local gateway, and sending the identifier to the MME .
  • the acquisition and distribution of the IP address and the tunnel endpoint identifier ensure the smooth establishment and stability of the user plane bearer.
  • a third aspect of the embodiments of the present invention provides a method for accessing a local network, where the method includes:
  • the eNB accesses the UE to the core network, where the gateway of the core network is a C-GW;
  • the eNB establishes, for the UE, a user plane bearer that includes a local gateway corresponding to the UE as an intermediate node between the eNB and the C-GW, where the local gateway is a gateway of a local network;
  • the eNB When the eNB receives data that the UE accesses the local network, the eNB will visit Asking the data of the local network to be sent to the local gateway.
  • the eNB can send the received data of the UE to the local network to the local gateway, thereby achieving the purpose of simultaneously accessing the operator network and the local network.
  • the eNB establishes, by the eNB, a local gateway corresponding to the UE from the eNB to the C-GW.
  • the steps of the user plane bearer as the intermediate node also include:
  • the eNB notifies the MME of the determined local gateway or subnet corresponding to the UE.
  • the eNB determines the local gateway or subnet corresponding to the UE, and then notifies the MME to reduce the running load of the MME.
  • the eNB establishes, from the eNB to the C-GW, the UE
  • the user plane bearer that includes the local gateway corresponding to the UE as the intermediate node includes:
  • the eNB allocates an IP address and a tunnel endpoint identifier from the local gateway to the eNB for the user plane of the UE, and sends the IP address and the tunnel endpoint identifier of the eNB from the local gateway to the eNB to the eNB.
  • the MME The MME.
  • the acquisition and distribution of the IP address and the tunnel endpoint identifier ensure the smooth establishment and stability of the user plane bearer.
  • a fourth aspect of the embodiments of the present invention provides an MME, including:
  • a first receiving module configured to receive an access request of a user equipment UE sent by a base station eNB, where the access request carries access information of the UE;
  • a first processing module configured to determine, according to access information of the UE, a first local gateway corresponding to the UE, where the first local gateway is a gateway of a first local network, and the UE is established from the eNB to The user interface bearer between the core network gateway C-GW and the first local gateway is included as an intermediate node.
  • the first implementation manner of the fourth aspect of the embodiment of the present invention And determining, by the first processing module, that the first local gateway corresponding to the UE is used to obtain function information of the eNB, and determining, according to the function information of the eNB, the eNB according to the access information of the UE. Whether to support the local gateway connection, when it is determined that the eNB supports the local gateway connection, triggering the step of determining the first local gateway corresponding to the UE.
  • the access information includes the user identifier
  • the user identifier is used to uniquely identify the UE
  • the first processing module determines, according to the access information of the UE, the first local gateway that is corresponding to the UE, and is specifically configured to use the user identifier from the user management server according to the user identifier. Finding a first local gateway corresponding to the UE.
  • the first local gateway is the highest priority among the multiple local gateways corresponding to the UE Local gateway.
  • the function information of the eNB further includes information about a local gateway accessed by the eNB;
  • the access information includes the user identifier, where the user identifier is used to uniquely identify the UE, and the first processing module determines, according to the access information of the UE, the first local gateway corresponding to the UE.
  • the first local gateway corresponding to the UE is determined according to the information of the local gateway accessed by the eNB and the user identifier.
  • the first processing module is After the UE establishes a user plane bearer that includes the first local gateway as an intermediate node between the eNB and the C-GW, the first processing module is further configured to: when determining that the UE corresponds to When the local gateway is updated to the third local gateway, a user plane bearer including the third local gateway as an intermediate node between the eNB and the C-GW is established for the UE, the third local The gateway is the gateway of the third local network.
  • the first processing module is further And acquiring, by using the user identifier, a first subnet corresponding to the UE, where the first subnet is located in the first local network;
  • the MME further includes:
  • a first sending module configured to send a first routing instruction to the first local gateway, where the first routing instruction includes an identifier of the first subnet and the user identifier, where the first routing instruction is used Instructing to route data of the UE to the first local network to the first subnet.
  • the first processing module acquires the first child corresponding to the UE according to the user identifier
  • the network time is specifically used to: determine the user group corresponding to the UE according to the user identifier; determine the first subnet corresponding to the UE according to the location information of the UE and/or the current time, and the user group.
  • the first processing module establishes the After the eNB and the core network gateway C-GW include the first local gateway as the user plane bearer of the intermediate node, the first processing module is further configured to: determine that the subnet corresponding to the UE is updated to the third Determining that the third subnet is located in the second local network, the second local network is different from the first local network; determining that the gateway of the second local network is the second local gateway; establishing for the UE A user plane bearer including the second local gateway as an intermediate node between the eNB and the C-GW.
  • the first processing module determines that the gateway of the second local network is the second local gateway
  • the first sending module is further configured to send a third routing instruction to the second local gateway, where the third routing instruction includes an identifier of the third subnet and the user identifier, where the routing instruction is used by And routing data indicating that the UE accesses the second local network to the third subnet.
  • the first processing module is After the UE establishes a user plane bearer that includes the local gateway as an intermediate node between the eNB and the C-GW, the UE is further configured to: acquire a network of the subnet corresponding to the UE according to the user identifier. a name; the network name is sent to the UE by a non-access stratum NAS message, such that the UE displays the network name in a user interface.
  • the first sending module is further configured to: notify a current subnet corresponding to the UE to the C-GW;
  • the first receiving module is further configured to receive, by the C-GW, a domain name resolution server address that is allocated to a subnet corresponding to the UE, where the domain name resolution server of the domain name resolution server address identifier stores the UE Correspondence between the domain name and IP address of the network device in the corresponding subnet;
  • the first sending module is further configured to send, to the UE, a domain name resolution server address assigned to a subnet corresponding to the UE.
  • the first sending module is further And configured to notify the local network corresponding to the current UE to the C-GW;
  • the first receiving module is further configured to receive, by the C-GW, a domain name resolution server address that is allocated by the local network corresponding to the UE, where the domain name resolution server of the domain name resolution server address identifier stores the UE Corresponding relationship between the domain name and the IP address of the network device in the corresponding local network;
  • the first sending module is further configured to send, to the UE, a domain name resolution server address allocated to a local network corresponding to the UE.
  • the first processing module is The UE establishes a user plane bearer that includes the first local gateway as an intermediate node between the eNB and the core network gateway C-GW, and is specifically configured to: control the first receiving module to obtain a C-GW allocation. And the IP address and the tunnel endpoint identifier from the local gateway to the C-GW, and control the IP of the C-GW from the local gateway to the C-GW by the first sending module.
  • the address and the tunnel end point identifier are sent to the local gateway, and the first receiving module is configured to acquire an IP address and a tunnel endpoint identifier that are allocated by the eNB from the local gateway to the eNB, and control the first sending module to Transmitting, by the eNB, an IP address and a tunnel endpoint identifier from the local gateway to the eNB, to the local gateway, and controlling, by the first receiving module, the local gateway to allocate the C-GW from the C-GW to the local gateway.
  • Address and tunnel termination The point identifier is sent to the C-GW, and the IP address and tunnel endpoint identifier from the eNB to the local gateway allocated by the local gateway are sent to the eNB.
  • a fifth aspect of the embodiments of the present invention provides a local gateway, which includes:
  • a second receiving module configured to receive a user plane establishment request sent by the mobile function management entity MME, where the user plane establishment request includes a user established by the gateway C-GW of the core network from the local gateway to the C-GW
  • the information carried by the UE wherein the UE is accessed by the eNB to the core network, and the local gateway is a local gateway corresponding to the UE;
  • a second processing module configured to establish, according to the user plane establishment request, a user plane bearer that includes the local gateway as an intermediate node from the eNB to the C-GW according to the user plane setup request.
  • the second processing module is further configured to: determine whether the received data of the UE accessing the network is accessing the local Network data;
  • the local gateway further includes:
  • a second sending module configured to: when determining that the data of the UE accessing the network is data accessing the local network, routing data of the UE to access the network to the local network; when determining that the data of the UE accessing the network is not accessing When the data of the local network is used, the data of the UE accessing the network is forwarded to the C-GW.
  • the second processing module establishes a secondary location for the UE according to the user plane establishment request.
  • the eNB to the C-GW includes the user plane bearer of the local gateway as an intermediate node
  • the second sending module routes the data of the UE accessing the network to the local network
  • the second processing module The method further includes: determining, according to the user identifier, a subnet corresponding to the UE, where the user identifier is used to uniquely identify the UE, and the user plane establishment request includes the user identifier;
  • the second sending module routes the data of the UE to access the network to the local network
  • the data is specifically used to route the data of the UE to the network to the subnet corresponding to the UE.
  • the second processing module establishes a secondary location for the UE according to the user plane establishment request.
  • the eNB and the C-GW include the user plane bearer that is the intermediate node as the intermediate node
  • the second sending module routes the data of the UE accessing the network to the local network.
  • the second receiving module is further configured to receive a routing instruction sent by the MME, where the routing instruction includes a subnet identifier and a user identifier, where the user identifier is used to uniquely identify the UE, and the subnet identifier is used by Uniquely identify a subnet;
  • the method is specifically configured to: route the data of the UE to access the network to the identifier of the subnet identifier in the routing instruction according to the routing instruction. In the subnet.
  • the second processing module determines to receive When the data of the UE accessing the network is the data of the local network, when the data of the UE accessing the network is received, the UE access is determined according to the destination IP address of the data of the UE accessing the network. Whether the data of the network is data for accessing the local network, wherein the local gateway stores a list of IP addresses of network devices of the local network.
  • the second receiving module receives the user sent by the mobile function management entity MME.
  • the method is specifically configured to obtain an IP address and a tunnel endpoint identifier that are allocated by the C-GW to the user plane of the UE from the local gateway to the C-GW.
  • the second processing module is configured to: when the user plane bearer includes the local gateway as the intermediate node between the eNB and the C-GW, according to the user plane setup request, specifically: Assigning, to the user plane of the UE, an IP address and a tunnel endpoint identifier from the C-GW to the local gateway, and an IP address and a tunnel endpoint identifier from the eNB to the local gateway; and controlling the second sending module The IP address and tunnel endpoint identifier assigned by the second processing module from the C-GW to the local gateway, and the IP address and tunnel termination point from the eNB to the local gateway allocated by the second processing module The identity is sent to the MME.
  • a sixth aspect of the embodiments of the present invention provides a base station eNB, which includes:
  • a third processing module configured to connect the UE to the core network, where the gateway of the core network is a C-GW, and establish, by the UE, a local gateway corresponding to the UE from the eNB to the C-GW as the middle
  • the user plane of the node is carried, and the local gateway is a gateway of a local network
  • a third receiving module configured to receive data that the UE accesses the local network
  • a third sending module configured to: when receiving the data that the UE accesses the local network, Data accessing the local network is sent to the local gateway.
  • the third processing module is configured to establish, by the UE, the UE from the eNB to the C-GW. Before the local gateway is used as the user plane bearer of the intermediate node, it is also used to determine a local gateway or a subnet corresponding to the UE;
  • the third sending module is further configured to notify the determined local gateway or subnet corresponding to the UE to the MME.
  • the third processing module establishes, from the eNB to the C, the UE
  • the method is specifically configured to: control the third receiving module to obtain the user plane allocated by the local gateway to the UE from the eNB to the local An IP address of the gateway and a tunnel endpoint identifier; assigning an IP address and a tunnel endpoint identifier from the local gateway to the eNB for the user plane of the UE, and controlling the third sending module to allocate the third processing module
  • the IP address and tunnel endpoint identifier from the local gateway to the eNB are sent to the MME.
  • a seventh aspect of the embodiments of the present invention provides an MME, including:
  • Input device output device, processor and memory
  • the processor is configured to perform the following steps by invoking an operation instruction stored by the memory:
  • a user plane bearer from the eNB to the core network gateway C-GW that includes the first local gateway as an intermediate node.
  • the processor performs the determining, according to the access information of the UE, a first local gateway corresponding to the UE. Before the step, it is also used to perform the following steps:
  • the step of determining the first local gateway corresponding to the UE according to the access information of the UE is triggered.
  • the access information includes the user identifier
  • the user identifier is used to uniquely identify the UE.
  • the first local gateway is the highest priority among the multiple local gateways corresponding to the UE Local gateway.
  • the function information of the eNB further includes information about a local gateway accessed by the eNB;
  • the access information includes the user identifier, where the user identifier is used to uniquely identify the UE, and the processor performs the first local gateway corresponding to the UE according to the access information of the UE.
  • the eNB Determining, according to the information of the local gateway accessed by the eNB, and the user identifier, the first local gateway corresponding to the UE.
  • the method further includes the following steps:
  • the local gateway corresponding to the UE When it is determined that the local gateway corresponding to the UE is updated to the third local gateway, establish, for the UE, a user plane bearer that includes the third local gateway as an intermediate node from the eNB to the C-GW.
  • the third local gateway is a gateway of the third local network.
  • the processor is further used to Perform the following steps:
  • the processor performs the first acquiring the first corresponding to the UE according to the user identifier.
  • the steps of the subnet perform the following steps:
  • the processor performs the establishment of the UE for the UE After the step of the user plane bearer including the first local gateway as the intermediate node between the eNB and the core network gateway C-GW, the following steps are also performed:
  • a user plane bearer from the eNB to the C-GW that includes the second local gateway as an intermediate node.
  • the processor performs the determining that the gateway of the second local network is a second local gateway After the step, it is also used to perform the following steps:
  • the UE establishes from the eNB to the C-GW that includes the local gateway as After the step of carrying the user plane of the intermediate node, the following steps are also performed:
  • the network name is sent to the UE by a non-access stratum NAS message, such that the UE displays the network name in a user interface.
  • the processor is further used to Perform the following steps:
  • the processor is further used in the twelfth implementation manner of the seventh aspect to the seventh aspect of the embodiments of the present invention. Perform the following steps:
  • the C-GW And receiving, by the C-GW, a domain name resolution server address allocated by the local network corresponding to the UE, where the domain name resolution server of the domain name resolution server address identifier stores a domain name of a network device in a local network corresponding to the UE Correspondence relationship of IP addresses;
  • the processor performs the When the step of establishing a user plane bearer including the first local gateway as an intermediate node between the eNB and the core network gateway C-GW is established, the following steps are specifically performed:
  • An eighth aspect of the embodiments of the present invention provides a local gateway, including:
  • Input device output device, processor and memory
  • the processor is configured to perform the following steps by invoking an operation instruction stored by the memory:
  • a user plane bearer including the local gateway as an intermediate node from the eNB to the C-GW according to the user plane establishment request a user plane bearer including the local gateway as an intermediate node from the eNB to the C-GW according to the user plane establishment request.
  • the processor is further configured to perform the following steps:
  • the processor performs, according to the user plane setup request, establishes a slave for the UE. After the step of the eNB to the C-GW including the user plane bearer of the local gateway as an intermediate node, before performing the step of routing the data of the UE to access the network to the local network, Perform the following steps:
  • the UE includes the user identifier in the user plane establishment request;
  • the data of the UE accessing the network is routed to a subnet corresponding to the UE.
  • the processor performs, according to the user plane establishment request, establishes a slave for the UE. After the step of the eNB to the C-GW including the user plane bearer of the local gateway as an intermediate node, before performing the step of routing the data of the UE to access the network to the local network, Perform the following steps:
  • the routing instruction includes a subnet identifier and a user identifier, where the user identifier is used to uniquely identify the UE, and the subnet identifier is used to uniquely identify a subnet;
  • the data of the UE accessing the network is routed to the subnet identified by the subnet identifier in the routing instruction.
  • the processor performs the determining When the received data of the UE accessing the network is the step of accessing the data of the local network, the following steps are specifically performed:
  • the processor performs the indication that the input device receives a mobile function.
  • the step of the user plane establishment request sent by the management entity MME is performed, the following steps are performed:
  • the step of establishing, according to the user plane establishment request, a user plane bearer that includes the local gateway as an intermediate node between the eNB and the C-GW according to the user plane establishment request specifically Perform the following steps:
  • the ninth aspect of the embodiments of the present invention provides a base station eNB, including:
  • Input device output device, processor, memory
  • the processor is configured to perform the following operations by invoking an operation instruction stored by the memory:
  • the UE is connected to the core network, and the gateway of the core network is a C-GW;
  • a user plane bearer from the eNB to the C-GW that includes the local gateway corresponding to the UE as an intermediate node, where the local gateway is a gateway of a local network;
  • the input device receives the data that the UE accesses the local network, instructing the output device to send data accessing the local network to the local gateway.
  • the processor performs, by the UE, the establishment of the UE from the eNB to the C-GW. Before the step of the corresponding local gateway as the user plane bearer of the intermediate node, the processor is further configured to perform the following steps:
  • the processor performs the When the step of including the local gateway corresponding to the UE as the user plane bearer of the intermediate node between the C-GWs, the following steps are specifically performed:
  • a tenth aspect of the embodiments of the present invention provides a system for accessing a local network, including:
  • the MME provided by the method is any one of the implementation manners of the fifth aspect to the fifth aspect of the embodiment of the present invention or the fifth implementation manner of the eighth aspect to the eighth aspect of the embodiment of the present invention.
  • a local gateway provided by an implementation manner, where the sixth aspect to the second implementation manner of the sixth aspect of the embodiment of the present invention, or the second aspect of the ninth aspect to the ninth aspect of the embodiment of the present invention.
  • a base station provided by any one of the implementation manners, and a UE.
  • the system further includes:
  • a user management server configured to store a correspondence between the UE and a subnet and/or a local gateway
  • the domain name resolution server is configured to store a domain name and an IP address of the network device in the subnet corresponding to the UE, and convert the domain name of the service server in the subnet corresponding to the UE to the IP address of the service server.
  • the embodiment of the present invention has the following advantages: in the embodiment of the present invention, the mobile function management entity MME of the core network according to the access information of the UE carried in the access request of the user equipment UE sent by the base station eNB And determining, by the first local gateway corresponding to the UE, the first local gateway is a gateway of the first local network, and establishing, between the eNB and the gateway C-GW of the core network, the first local
  • the gateway is carried as a user plane of the intermediate node, so that since the user plane carries the first local gateway as an intermediate node, the eNB establishes a data connection with the gateway C-GW of the core network and the gateway of the first local network.
  • the UE can access the carrier network and access the first local network through the eNB, so that the user can access the carrier network and the local network at the same time.
  • FIG. 1 is a schematic structural diagram of a network system according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of signaling interaction of a method for accessing a local network according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a method for accessing a local network according to an embodiment of the present invention
  • FIG. 4 is another schematic flowchart of a method for accessing a local network according to an embodiment of the present invention.
  • FIG. 5 is another schematic flowchart of a method for accessing a local network according to an embodiment of the present invention.
  • FIG. 6 is another schematic flowchart of a method for accessing a local network according to an embodiment of the present invention.
  • FIG. 7 is another schematic flowchart of a method for accessing a local network according to an embodiment of the present invention.
  • FIG. 8 is another schematic flowchart of a method for accessing a local network according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of an MME according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a local gateway according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of a system for accessing a local network according to an embodiment of the present invention.
  • the embodiments of the present invention provide a method for accessing a local network and related devices, which are used to enable a user to simultaneously use an operator network and a local network.
  • FIG. 1 is a schematic diagram of a network system in the embodiment of the present invention
  • the user accessing the carrier network needs to be the user equipment UE.
  • the core network includes a gateway C-GW of the core network and a mobile function management entity MME of the core network.
  • a user management server (which may be configured on the CSG server or other device) for storing necessary user information and corresponding information of the user information and other information in the network system, and may also exist for domain name resolution.
  • Domain name resolution server DNS server pass Through the C-GW and the DNS server, the message sent by the UE can access the public data network PDN Internet.
  • the network system may also include an open platform Open Platform.
  • the open platform refers to the software system by exposing its application programming interface (API) or function. (function) to allow an external program to increase the functionality of the software system or use the resources of the software system without changing the source code of the software system.
  • the network system further includes a local network, where the local network includes the local network.
  • the MME, the eNB, and the local gateway can obtain the user identifier that uniquely identifies one UE, and can obtain the required information according to the user identifier (for example, corresponding information).
  • the MME, the eNB, and the local gateway can obtain the user identifier that uniquely identifies one UE, and can obtain the required information according to the user identifier (for example, corresponding information).
  • Local gateway, corresponding user group, corresponding subnet, etc. can obtain the user identifier that uniquely identifies one UE, and can obtain the required information according to the user identifier (for example, corresponding information).
  • Local gateway, corresponding user group, corresponding subnet, etc. can obtain the required information according to the user identifier (for example, corresponding information).
  • the user identifier may be an MSISDN, a temporary identifier, or any other identifier that may be used to indicate a user, wherein the MSISDN refers to the calling user calling the Global System For Mobile Communications Public Land Mobile (Global System For Mobile Communications Public Land Mobile)
  • GSM PLMN Global System For Mobile Communications Public Land Mobile
  • PSTN Public Switched Telephone Network
  • GSM PLMN Global System For Mobile Communications Public Land Mobile
  • PSTN Public Switched Telephone Network
  • other MMEs may be used, and the code that can be obtained by the eNB and the local gateway and uniquely identifies one UE is used as the user identifier, which is not limited herein.
  • FIG. 2 in conjunction with the network system shown in FIG. 1, a method for accessing a local network in the embodiment of the present invention is described below from the perspective of signaling interaction between network devices:
  • the UE accesses the eNB.
  • the eNB sends the access information of the UE to the MME by using an initial UE message.
  • the access information of the UE is carried by the UE through an access request sent by the eNB.
  • the MME determines a local gateway corresponding to the UE.
  • the access information includes a user identifier for uniquely identifying the UE, for example.
  • a user identifier for uniquely identifying the UE, for example.
  • MSISDN mobile subscriber network
  • user temporary identification or any other identifier that can be used to mark the user.
  • the MME or the user management server (for example, a CSG server or other device) stores a correspondence between the user identifier and the local gateway. Specifically, the MME can determine the local gateway in the following manner:
  • the MME searches for the corresponding relationship according to the user identifier in the access information, and obtains a local gateway corresponding to the UE.
  • the MME can obtain the local gateway (one or more) to which the eNB is connected by acquiring the function information of the eNB, and the MME can obtain the corresponding UE according to the user identifier in the access information and the information of the local gateway accessed by the eNB.
  • Local gateway Specifically, the function information of the eNB may be sent from the eNB to the MME, or may be obtained by the MME in other manners, for example, by using a DNS query eNB, a local network identifier, and a local gateway identifier, and the like, which is obtained from the database, which is not limited herein.
  • the MME may obtain the local gateway corresponding to the UE according to the user identifier in the access information and the information of the local gateway accessed by the eNB, as follows: The user identifier is informed that the user supports the local network, and the MME may determine that the eNB connects the local gateway to the local gateway corresponding to the UE.
  • the MME may obtain the local gateway corresponding to the UE according to the user identifier in the access information and the information about the local gateway accessed by the eNB, as follows: Finding a corresponding relationship according to the user identifier to obtain two local gateways, one of which is a local gateway accessed by the eNB, and the MME may determine that the local gateway is a local gateway corresponding to the UE. further,
  • the local gateway corresponding to the UE may be obtained by the eNB by searching for the corresponding relationship and/or the information of the local gateway that is accessed by the eNB, and then sent to the MME, which is not limited herein.
  • the MME, the eNB, and the local gateway corresponding to the UE establish, for the UE, a user plane bearer that includes the local gateway as an intermediate node from the eNB to the C-GW.
  • the user plane bearer including the local gateway as the intermediate node refers to: establishing a user plane data channel between the UE and the C-GW to access the core network and the Internet service from the C-GW (for example, it may be a PDN data channel). It can also be another data channel, which is not limited here.
  • the local gateway is used as the intermediate node, the eNB side, the eNB is connected to the local gateway, the C-GW side, the local gateway is connected to the C-GW, and the user equipment accesses the core network.
  • the data flow of the Internet service is forwarded by the L-GW between the eNB and the C-GW, and the data of the user equipment accessing the local network service is locally routed by the L-GW.
  • the specific process can refer to the description in the following embodiments.
  • step 201 to step 204 the user plane bearer including the local gateway as the intermediate node between the eNB and the C-GW is established for the UE, so that the user can access the carrier network and the local network at the same time.
  • another embodiment of the method for accessing the local network in the embodiment of the present invention may further include: Step 205 to Step 206, by routing the UE to access data of the local network to a specific local network corresponding to the UE.
  • the subnet makes the data access process more refined, and can better control the access of the network access, thereby improving the security of the network system.
  • the local gateway acquires a subnet identifier corresponding to the UE.
  • the subnet identifier is used to identify a subnet in the local network, where the subnet can be one of multiple subnets of the local network (for example, the subnet with the highest priority) or a unique subnet of the local network. (That is, the subnet can be the local network, and the subnet identifier is the local network identifier), which is not limited herein.
  • the local gateway may obtain a user identifier that uniquely identifies the UE.
  • the correspondence between the user identifier and the subnet identifier may be stored in the user management server or the user subscription information.
  • the local gateway may search for the corresponding relationship according to the user identifier that uniquely identifies the UE, and obtain the subnet identifier corresponding to the UE.
  • the MME may first search for the corresponding relationship according to the user identifier that uniquely identifies the UE.
  • the subnet identifier corresponding to the UE is obtained, and the subnet identifier is sent to the local gateway, which is not limited herein.
  • the stored correspondence may also include a correspondence between the user identifier and the user group, and a correspondence between the user group and the subnet identifier.
  • the MME may Determining the user group according to the correspondence between the user identifier and the user group, and determining the subnet identifier corresponding to the UE according to the correspondence between the user group and the subnet identifier (for example, the function information of the obtained eNB may also be The MME may determine the user group according to the user identifier, and determine the UE according to the user group and the subnet information supported by the local gateway L-GW, including the subnet information in the local network supported by the local gateway L-GW connected by the eNB. Corresponding subnet ID).
  • the subnet identifier does not exist, and the user group is associated with the subnet, and the identifier of the user group is used as the identifier of the subnet, which is not limited herein.
  • the local gateway routes the data of the UE accessing the local network to the subnet identified by the subnet identifier.
  • the local gateway receives the data of the UE accessing the network (the data packet carrying the data carries the data)
  • the source IP address and the destination IP address may be determined according to the destination IP address of the data of the UE accessing the network, whether the data accessed by the UE is a data for accessing the local network, and the local gateway stores the corresponding UE.
  • the local gateway forwards the data of the UE accessing the network to the C-GW; when it is determined to access the data of the local network, the local The gateway routes the data of the UE accessing the local network to the subnet identified by the subnet identifier.
  • the local gateway When the local gateway obtains a list of the IP addresses of the network devices in the subnet corresponding to the UE, the local gateway may be configured by the open platform. Alternatively, the MME may also be configured by the MME from the domain name resolution server. A list of the IP addresses of the network devices in the subnet corresponding to the UE is read and sent to the local gateway, which is not limited herein.
  • another embodiment of the method for accessing the local network in the embodiment of the present invention may further include: Step 207 to Step 209, so that the UE can directly access the domain name of the service server in the subnet in the local network.
  • the user plane bearer including the local gateway corresponding to the UE from the eNB to the C-GW is established as the intermediate node, and the UE is determined to correspond to the local network in the local gateway as the gateway.
  • the subnet at this time, the UE can simultaneously access the local network and the carrier network.
  • the UE may directly access the service server in the subnet through the IP address, or access the service server in the subnet through the domain name.
  • the domain name needs to be resolved to obtain the domain name.
  • the IP address of the service server in the subnet after the step 204 of the foregoing embodiment, before the step 206, the method further includes: Steps 207 to 209, accessing the service server in the subnet by using the domain name, and the details are as follows:
  • the UE sends a domain name resolution request to the DNS server, where the domain name of the service server in the subnet is included;
  • the MME may be based on a unique identifier.
  • the user identifier of the UE is used to search for the corresponding relationship between the user identifier and the subnet identifier stored in the MME, the user management server, or the user subscription information, and obtain the identifier of the subnet corresponding to the UE, and then send the identifier of the subnet corresponding to the UE.
  • the C-GW forwards the address of the domain name resolution server DNS server that is allocated by the C-GW to the subnet corresponding to the UE to the UE, the UE can determine the address of the DNS server.
  • the UE may send a domain name resolution request to the DNS server, where the domain name resolution request includes the domain name of the service server in the subnet.
  • the DNS server returns the IP address of the service server in the subnet to the UE according to the domain name of the service server in the subnet.
  • the UE sends a service request to the service server IP address.
  • the correspondence between the domain name of the service server in the subnet and the IP address of the service server in the subnet in the DNS server can be configured through the open platform.
  • another embodiment of the method for accessing the local network in the embodiment of the present invention may further include: Step 210 to Step 212, by sending the network name of the subnet to the UE, the network name may be made in the UE.
  • the user interface display makes it easier for the user to understand which subnet is currently accessed, which improves the human-computer interaction performance. The specific description is as follows:
  • the MME obtains a network name of a subnet corresponding to the UE.
  • the MME, the user management server, or the user subscription information may also store a correspondence between the user identifier and the network name of the subnet, or a correspondence between the subnet and the network name of the subnet, and the MME may The corresponding relationship is searched according to the user identifier or the subnet corresponding to the UE, and the network name of the subnet corresponding to the UE is obtained.
  • the MME sends the network name to the UE by using a NAS message.
  • the UE After receiving the network name sent by the MME by using the NAS message, the UE displays the network name on the user interface of the UE.
  • steps 205 and 206, steps 207 to 209, and steps 210 to 212 can be combined with each other or selected according to actual application conditions, which is not limited herein.
  • the method for accessing the local network in the embodiment of the present invention is described above from the perspective of the signaling interaction of the devices in the network system, and the following is taken from the perspective of each network device.
  • the method of entering the local network is described:
  • an embodiment of a method for accessing a local network in an embodiment of the present invention includes:
  • the MME receives an access request of the user equipment UE that is sent by the eNB, where the access request carries the access information of the UE.
  • the MME is a mobile function management entity of the core network
  • the gateway of the core network is a C-GW.
  • the UE first accesses the eNB, and then accesses the core network through the eNB, and sends an access request for accessing the core network to the MME, where the access request carries the access information of the UE, and the access information is included in the access information.
  • a user identifier that uniquely identifies the UE is included.
  • the MME determines, according to the access information of the UE, a first local gateway corresponding to the UE.
  • the first local gateway is a gateway of the first local network
  • the access information includes a user identifier for uniquely identifying the UE.
  • the correspondence between the user identifier and the local gateway is stored in the MME or the user management server.
  • the MME may search for the corresponding relationship according to the user identifier in the access information, and obtain a first local gateway corresponding to the UE.
  • the eNB may also search for the corresponding identifier according to the user identifier.
  • the first local gateway corresponding to the UE is obtained and sent to the MME, which is not limited herein.
  • the MME may obtain the function information of the eNB, where the function information may include information about the local gateway accessed by the eNB, and the MME may also find information according to the local gateway accessed by the eNB, and The local gateway corresponding to the user identifier determines the first local gateway corresponding to the UE, which is not limited herein.
  • the function information of the eNB may also include the information of the subnet in the local network supported by the local gateway L-GW connected to the eNB. It may be understood that the function information of the eNB may be sent from the eNB to the MME, or may be the MME. Other methods, such as querying the eNB through the DNS, the local network identifier, and the local gateway identifier, are obtained from the database, which is not limited herein.
  • the MME establishes, for the UE, a user plane bearer that includes the local gateway as an intermediate node between the eNB and the C-GW.
  • the eNB After the MME determines the first local gateway corresponding to the UE, the eNB establishes an eNB from the eNB to the C-GW.
  • the user plane bearer between the local gateway and the intermediate node is included.
  • the mobile function management entity MME of the core network can determine the first local gateway corresponding to the UE according to the access information of the UE carried in the access request of the user equipment UE sent by the base station eNB, where the first local The gateway is a gateway of the first local network, and establishes, for the UE, a user plane bearer including the first local gateway as an intermediate node between the gateway C-GW of the eNB and the core network, so that the user plane bears With the first local gateway as the intermediate node, the eNB establishes a data connection with the gateway C-GW of the core network and the gateway of the first local network, and the UE can access the carrier network through the eNB. The first local network can be accessed, so that the user can access the carrier network and the local network at the same time.
  • the MME determines the first local gateway corresponding to the UE.
  • the MME determines that the first local gateway has multiple manners, and may be directly determined by the local gateway corresponding to the UE, or may be determined by the local gateway.
  • the subnet corresponding to the UE is determined, and the number of the local gateways or the subnets corresponding to the UE may be only one, or there may be multiple, which may be used in the following.
  • the method of entering the local network is described in detail:
  • the UE directly corresponds to the local gateway.
  • another embodiment of a method for local network access in an embodiment of the present invention includes:
  • the MME receives an access request of the user equipment UE sent by the base station eNB, where the access request carries the access information of the UE.
  • the MME is a mobile function management entity of the core network
  • the gateway of the core network is a C-GW.
  • the UE first accesses the eNB, and then accesses the core network through the eNB, and sends the access information of the access core network to the MME, where the access request carries the access information of the UE, and the access information is included in the access information.
  • a user identifier that uniquely identifies the UE is included.
  • the MME determines whether the eNB supports a local gateway connection.
  • the access information may also include an identifier of the eNB. It can be understood that the function information of each eNB can be stored in the MME or the core network, and the function supported by the eNB is recorded in the function information of each eNB, and the MME can query the function of each eNB by using the identifier of the eNB. In this step, the MME may determine whether the eNB supports the local gateway connection by querying the function of the eNB.
  • the function information of the eNB may further include a version supported by the local gateway L-GW connected by the eNB.
  • the information about the subnet in the local network can be understood that the function information of the eNB can be sent from the eNB to the MME, or the MME can obtain the MME through other methods, such as querying the eNB by the DNS, the local network identifier, and the local gateway identifier.
  • the database is obtained and is not limited here.
  • the MME may first determine whether the eNB accessing the UE supports the local gateway connection. When it is determined that it supports the local gateway connection, step 403 is triggered. When it is determined that the local gateway connection is not supported, the MME may directly connect the UE. The core network is not required to perform the subsequent steps of this embodiment.
  • the MME searches for the first local gateway with the highest priority among the plurality of local gateways corresponding to the UE, where the multiple local gateways are located. Having different priorities, the access information includes the user identifier, and the user identifier is used to uniquely identify the UE;
  • the user management server stores the corresponding relationship between the UE and the local gateway, and specifically, the correspondence between the user identifier and the local gateway that uniquely identifies the UE, and one UE may correspond to multiple local gateways, and each local Gateways have different priorities.
  • the MME searches the user management server for the local gateway with the highest priority among the plurality of local gateways corresponding to the UE as the first local gateway; optionally, in actual application, one UE corresponds to When multiple local gateways are used, the local gateway with the best calculation result may be selected as the first local gateway according to the calculation of the load balancing.
  • the MME may obtain the function information of the eNB, where the function information may be
  • the MME may include information about the local gateway accessed by the eNB, and the MME may determine the first local gateway corresponding to the UE according to the information of the local gateway accessed by the eNB and the local gateway corresponding to the discovered user identifier, and may also have The manner of determining the local gateway that the UE currently corresponds to among the multiple local gateways of the other UEs is not limited herein.
  • the MME uses the local gateway corresponding to the UE as the first local gateway.
  • the MME establishes, for the UE, a user plane bearer that includes the first local gateway as an intermediate node between the eNB and the C-GW.
  • the MME After determining the first local gateway corresponding to the UE, the MME establishes, for the UE, a user plane bearer that includes the first local gateway as an intermediate node from the eNB to the C-GW;
  • the user plane bearer including the first local gateway as the intermediate node refers to: establishing a data communication between the UE and the C-GW to access the user plane of the core network and the Internet service from the C-GW.
  • the channel (for example, may be a PDN data channel or other data channel, which is not limited herein)
  • the first local gateway is used as an intermediate node
  • the eNB side the eNB is connected to the first local gateway
  • the C-GW side is
  • a local gateway is connected to the C-GW, and the data flow of the user equipment accessing the core network and the Internet service is forwarded between the eNB and the C-GW by the first local gateway, and the data of the service of the user equipment accessing the first local network is determined by the first local
  • the gateway performs local routing to reach the first local network.
  • the MME acquires a first subnet corresponding to the UE.
  • the MME may acquire the first subnet corresponding to the UE.
  • mapping between the UE and the subnet may be stored in the user management server, or may be stored in the user's subscription data, and may also be in other locations, such as a local gateway, which is not limited herein.
  • the MME may first determine the user group corresponding to the UE, and then according to the location information of the UE. / or current time, and the user group, determine the first subnet corresponding to the UE.
  • the location information of the UE may be the current location information of the UE that is reported by the UE or the MME, and may also be the identifier of the eNB, which is not limited herein.
  • the user group 1 can be set to correspond to the subnet 1 before 12 noon.
  • the user group 1 corresponds to the subnet 2 after 12 noon, and may also have a user group, location information of the UE,
  • the correspondence between the other combinations of the current time and the subnet is not limited herein.
  • the MME sends a first routing instruction to the first local gateway, where the first routing instruction includes an identifier of the first subnet and an identifier of the UE, where the first routing instruction is used to indicate Routing, by the UE, data of the first local network into the first subnet;
  • the MME After obtaining the first subnet identifier corresponding to the user, the MME sends a first routing instruction to the first local gateway, where the first routing instruction includes an identifier of the first subnet and an identifier of the UE, where the first The routing instruction is configured to indicate that the UE accesses the data of the first local network to the first subnet.
  • the MME may obtain the identifier of the first subnet corresponding to the UE and then send the first routing instruction to the local gateway.
  • the subnet corresponding to the UE may be completed by the MME, or may be performed by the MME.
  • the local gateway comes to complete, the MME does not need to obtain the subnet at this time. This is not a limitation. Therefore, it can be understood that, in this embodiment, the steps 405 and 406 may or may not exist in different application scenarios, which are not limited herein.
  • the MME may further send the identifier of the subnet corresponding to the UE to the C-GW, and then receive the domain name resolution server address that is returned by the C-GW and is allocated to the subnet corresponding to the UE, and the domain name resolution is performed.
  • the domain name resolution server identified by the server address stores the correspondence between the domain name and the IP address of the network device in the subnet corresponding to the UE.
  • the MME may also send the identifier of the local network corresponding to the UE to the C-GW, and then receive the domain name resolution server address that is returned by the C-GW and is allocated by the local network corresponding to the UE, and the domain name resolution is performed.
  • the domain name resolution server identified by the server address stores the correspondence between the domain name and the IP address of the network device in the local network corresponding to the UE.
  • the MME determines that the local gateway with the highest priority is updated to the third local gateway, the MME establishes, for the UE, the third local gateway from the eNB to the C-GW. As a user plane bearer of the intermediate node, the third local gateway is different from the first local gateway;
  • the user may also modify the local network corresponding to the local gateway corresponding to the UE according to the actual requirement, for example, modifying the local gateways of the multiple local gateways corresponding to the UE.
  • Priority such that the highest priority local gateway is updated to other local gateways, such as a third local gateway, the third local gateway is a gateway of the third local network, and the MME can monitor local gateway priority changes or receive user management
  • the message sent by the server is updated with the priority of the local gateway corresponding to the UE.
  • the MME After the MME determines that the local gateway with the highest priority is updated to the third local gateway, the MME establishes, for the UE, a user plane bearer from the eNB to the C-GW that includes the third local gateway as an intermediate node, It is understood that, at the same time, the MME may also delete the user plane bearer with the first local gateway as an intermediate node, and the third local gateway is different from the first local gateway.
  • the corresponding subnet identifier of the UE in the third local network may be determined, which is not limited herein.
  • step 404 may or may not exist in a different application scenario, which is not limited herein.
  • the MME acquires a network name of a subnet corresponding to the UE.
  • the MME sends the network name to the UE by using a non-access stratum NAS message, so that the UE displays the network name in a user interface.
  • steps 408 and 409 may or may not exist in different application scenarios, which are not limited herein.
  • the MME can determine the local gateway with the highest priority corresponding to the UE, establish a user plane bearer with the local gateway as an intermediate node, and implement the local network of the carrier network and the local gateway as a gateway. Simultaneous access, further, can determine the corresponding subnet identifier of the UE in the local network, and send a routing instruction to the local gateway, so that the local gateway routes the data of the UE accessing the local network to the subnet, and implements Precise control of network access rights.
  • the UE corresponds to the subnet, and the local gateway corresponding to the UE is determined by the subnet.
  • another embodiment of a method for local network access in an embodiment of the present invention includes:
  • the MME receives an access request of the accessing core network sent by the user equipment UE by using the base station eNB, where the access request carries the access information of the UE.
  • the MME determines whether the eNB supports a local gateway connection.
  • Steps 501 and 502 are similar to steps 401 and 402, and are not described herein.
  • the MME determines a second subnet corresponding to the UE according to the user identifier.
  • the UE has a corresponding relationship with the subnet, and one UE may have a corresponding relationship with multiple subnets, and multiple subnets have different priorities.
  • the MME or the user management server stores the correspondence between the UE and the subnet, and specifically, the correspondence between the user identifier and the subnet that uniquely identifies the UE.
  • the MME may determine the second subnet corresponding to the UE according to the correspondence and the user identifier that uniquely identifies the UE in the access information.
  • the MME can determine the second subnet corresponding to the UE, and the second subnet is the subnet with the highest priority or the unique subnet among the plurality of subnets corresponding to the current UE.
  • the MME can determine the second subnet corresponding to the UE by monitoring or searching for the user management server or the user subscription data, and can also send the second subnet corresponding to the UE by receiving the user management server or the eNB.
  • the message determines the second subnet corresponding to the UE, which is not limited herein.
  • the MME may first obtain the user group corresponding to the UE, and then determine the second subnet corresponding to the UE according to the location information of the UE and/or the current time, and the user group.
  • the location information of the UE may be the current location information of the UE that is reported by the UE or the MME, and may also be the identifier of the eNB, which is not limited herein.
  • the user group 3 can be set to correspond to the subnet 3 when the UE is in the location 1, and the subnet 4 when the UE is in the location 2, and the user group, the location information of the UE, and the current time.
  • the correspondence between other combinations and subnets is not limited herein.
  • the MME determines that the second subnet is located in the first local network.
  • the MME After determining the second subnet corresponding to the UE, the MME determines that the second subnet is located in the first local network.
  • the MME determines that the gateway of the first local network is a first local gateway.
  • the MME After determining that the second subnet corresponding to the UE is located in the first local network, the MME determines that the gateway of the first local network is the first local gateway.
  • the MME establishes, for the UE, a user plane bearer that includes the first local gateway as an intermediate node between the eNB and the C-GW.
  • step 404 Similar to step 404, it will not be described here.
  • the MME sends a second routing instruction to the first local gateway, where the second routing instruction includes an identifier of the second subnet and an identifier of the UE, where the routing instruction is used to indicate that the MME is The data that the UE accesses the first local network is routed to the second subnet.
  • the MME After the MME establishes a user plane bearer with the first local gateway as the intermediate node, the MME sends a second routing instruction to the first local gateway, where the second routing instruction includes the identifier of the second subnet corresponding to the UE and the The identifier of the UE is used to indicate that the data of the UE accessing the first local network is routed to the second subnet of the second subnet identifier unique identifier.
  • the MME may further send the identifier of the subnet corresponding to the UE to the C-GW, and then receive the domain name resolution server address that is returned by the C-GW and is allocated to the subnet corresponding to the UE, and the domain name resolution is performed.
  • the domain name resolution server identified by the server address stores the correspondence between the domain name and the IP address of the network device in the subnet corresponding to the UE.
  • the MME may also send the identifier of the local network corresponding to the UE to the C-GW, and then receive the domain name resolution service that is returned by the C-GW and is allocated to the local network corresponding to the UE.
  • the domain name resolution server of the domain name resolution server address stores the correspondence between the domain name and the IP address of the network device in the local network corresponding to the UE.
  • the MME determines that the subnet corresponding to the UE is updated to a third subnet.
  • the user can modify the priority of the subnet or subnet corresponding to the UE, so that the unique or highest priority subnet of the UE is updated to other subnets, for example, the third subnet.
  • the third subnet is different from the second subnet and is located on a different local network.
  • the MME can obtain the update of the subnet corresponding to the UE by monitoring the subnet corresponding to the UE (the priority of the subnet) or receiving the message sent by the user management server. In this step, the MME may determine that the subnet corresponding to the UE is updated to the third subnet, and the third subnet is the subnet with the highest priority or the unique subnet among the plurality of subnets corresponding to the current UE.
  • the MME can determine whether the subnet corresponding to the UE is updated to the third subnet by monitoring or searching the user management server or the user subscription data, and can also send the subordinate corresponding to the UE by receiving the user management server or the eNB.
  • the network identifier is updated to the message of the third subnet, and the subnet identifier corresponding to the UE is updated to be the third subnet, and the combination of the location information and/or the current time of the user group and the UE corresponding to the UE corresponds to the
  • the third subnet is not limited here.
  • the MME determines that the third subnet is located in the second local network, where the second local network is different from the first local network.
  • the third subnet is located in the second local network, and the second local network is different from the first local network.
  • the second local network where the subnet corresponding to the updated UE is located is different from the first local network.
  • the subnet corresponding to the updated UE is located in the second local area.
  • the network may also be the same local network as the first local network, which is not limited herein.
  • the MME determines that the gateway of the second local network is a second local gateway.
  • the MME After determining that the third subnet corresponding to the updated UE is located in the second local network, the MME determines that the gateway of the second local network is the second local gateway.
  • the MME establishes, for the UE, a user plane bearer that includes the second local gateway as an intermediate node between the eNB and the C-GW, where the second local gateway is the first Different local gateways;
  • the user plane bearer including the second local gateway as an intermediate node means:
  • the data channel of the user plane that accesses the core network and the Internet service from the C-GW is established between the UE and the C-GW (for example, it may be a PDN data channel, or may be another data channel, which is not limited herein), and the second local gateway is used.
  • the eNB is connected to the second local gateway
  • the C-GW side the second local gateway is connected to the C-GW
  • the data flow of the user equipment accessing the core network and the Internet service is performed by the second local gateway in the eNB.
  • the C-GW forwards, the data of the service of the user equipment accessing the second local network is locally routed by the second local gateway to reach the second local network.
  • the MME sends a third routing instruction to the second local gateway, where the third routing instruction includes an identifier of the third subnet and an identifier of the UE, where the routing instruction is used to indicate that the MME is Transmitting, by the UE, data of the second local network to the third subnet;
  • steps 508 to 512 may or may not exist according to the actual application scenario, which is not limited herein.
  • the MME acquires a network name of a subnet corresponding to the UE.
  • the MME sends the network name to the UE by using a non-access stratum NAS message, so that the UE displays the network name in a user interface.
  • steps 513 and 514 may or may not exist in different application scenarios, which are not limited herein.
  • the MME can determine the highest priority or unique corresponding subnet corresponding to the UE, obtain the local network where the subnet is located, and then determine the local gateway of the local network, where the local gateway is the UE.
  • the intermediate node establishes a user plane bearer, implements simultaneous access to the operator network and the local network, and sends a routing instruction to the local gateway, instructing the local gateway to route the data of the UE accessing the local network to the child corresponding to the UE. In the network, precise control of network access rights is achieved.
  • the local gateway receives the user plane establishment request sent by the MME, where the user plane establishment request includes information that is carried by the user plane from the local gateway to the C-GW, and the MME is a mobile network.
  • the gateway of the core network is a C-GW
  • the UE is accessed by the eNB
  • the local gateway is a local gateway corresponding to the UE;
  • the local gateway can establish a user plane bearer for the UE as an intermediate node, and implement the UE access to the operator network and the local network that uses itself as a gateway.
  • each subnet is uniquely identified by a different subnet identifier, and the UE may have access rights to some of the subnets, ie, some or some of them.
  • the corresponding relationship may be determined by the local gateway itself, or may be determined by a routing instruction sent by the MME, which is not limited herein. The following descriptions are made separately:
  • the local gateway can query it by itself.
  • another embodiment of a method for accessing a local network in an embodiment of the present invention includes:
  • the local gateway receives a user plane establishment request sent by the MME.
  • the user plane establishment request includes information about a user plane carried by the MME from the local gateway to the C-GW, and the MME is a mobile function management entity of the core network, where the core network
  • the gateway is a C-GW, the UE is accessed by the eNB, and the local gateway is a local gateway corresponding to the UE;
  • the local gateway establishes, according to the user plane establishment request, a user plane bearer that includes the local gateway as an intermediate node between the eNB and the C-GW according to the user plane setup request.
  • the local gateway determines a subnet corresponding to the UE according to the user identifier.
  • mapping between the UE and the subnet can be stored in the local gateway, and the corresponding relationship between the UE and the subnet can be obtained from the user management server or the user subscription data, which is not limited herein.
  • the UE is uniquely identified by the user identifier, and the user identifier may be carried in the user plane establishment request, and may also be carried in other information sent by the MME to the local gateway, which is not limited herein.
  • the local gateway When the local gateway receives the data that the UE accesses the local network, the local gateway routes data that accesses the local network to a subnet corresponding to the UE.
  • the local gateway stores a list of IP addresses of the network devices in the subnet corresponding to the UE, where the list may be configured by the open platform in the local gateway, or may be forwarded by the MME.
  • the local gateway determines, according to the destination IP address of the data of the UE accessing the network, whether the data of the UE accessing the network is data for accessing the local network, when it is determined that the local network is not accessed.
  • the data of the network forwards the data of the UE accessing the network to the C-GW; when it is determined that the data of the local network is accessed, the UE is The data accessing the local network is routed to the subnet corresponding to the UE.
  • the local gateway after the local gateway establishes the user plane bearer of the intermediate node, the local gateway obtains the subnet corresponding to the UE, and routes the data of the UE to the local network to the subnet corresponding to the UE, thereby implementing the network. Fine control of access rights.
  • the routing instruction sent by the MME is determined.
  • another embodiment of a method for accessing a local network in an embodiment of the present invention includes:
  • the local gateway receives a user plane establishment request sent by the MME.
  • the user plane establishment request includes information about a user plane carried by the MME from the local gateway to the C-GW, and the MME is a mobile function management entity of the core network, where the core network
  • the gateway is a C-GW, the UE is accessed by the eNB, and the local gateway is a local gateway corresponding to the UE;
  • the local gateway establishes, according to the user plane establishment request, a user plane bearer that includes the local gateway as an intermediate node between the eNB and the C-GW according to the user plane setup request.
  • the local gateway receives a routing instruction that is sent by the MME, where the routing instruction includes a subnet identifier and an identifier of the UE, where the subnet identifier is used to uniquely identify a subnet, and the identifier of the UE is used to be unique. Identifying the UE;
  • the local gateway routes, according to the routing instruction, data that the UE accesses the local network to a subnet identified by the subnet identifier.
  • the local gateway stores a list of IP addresses of the network devices in the subnet corresponding to the UE, where the list may be configured by the open platform in the local gateway, or may be forwarded by the MME.
  • the local gateway determines, according to the destination IP address of the data of the UE accessing the network, whether the data of the UE accessing the network is data for accessing the local network, when it is determined that the local network is not accessed.
  • the local gateway forwards the data of the UE accessing the network to the C-GW; when it is determined that the data of the local network is accessed, the data of the UE accessing the local network is routed to the identifier identified by the subnet identifier. In the net.
  • the MME obtains the subnet identifier corresponding to the UE, and the local gateway receives the routing instruction sent by the MME, and routes the data of the UE accessing the local network to the subnet identified by the subnet identifier according to the routing instruction. It achieves fine control of network permissions and reduces the data processing pressure of the local gateway.
  • another embodiment of a method for accessing a local network in an embodiment of the present invention includes:
  • the eNB accesses the UE to the core network, where the gateway of the core network is a C-GW.
  • the eNB establishes, for the UE, a user plane bearer that is an intermediate node that is a local gateway corresponding to the UE from the eNB to the C-GW, where the local gateway is a gateway of a local network.
  • the eNB When the eNB receives the data that the UE accesses the local network, the eNB sends data that accesses the local network to the local gateway.
  • the eNB can determine the data of the accessing the local network by using the destination address of the data of the UE to access the network, and send the data to the local gateway, and the eNB can also send the data of the UE to all the networks to the local gateway. Not limited.
  • the eNB can send the received data of the UE to the local network to the local gateway, thereby implementing simultaneous access to the operator network and the local network. purpose.
  • the eNB may first determine the local gateway or local corresponding to the UE. The gateway identifier is then notified to the MME of the determined local gateway or local gateway identifier corresponding to the UE.
  • the MME, the local gateway, and the eNB establish a user plane bearer that includes the local gateway as the intermediate node from the eNB to the C-GW.
  • the specific implementation manner may be as follows:
  • the C-GW allocates an IP address and a tunnel endpoint identifier from the local gateway to the C-GW;
  • the local gateway obtains an IP address and a tunnel endpoint identifier that are allocated by the C-GW to the user plane of the UE from the local gateway to the C-GW;
  • the local gateway allocates an IP address and a tunnel endpoint identifier from the C-GW to the local gateway for the user plane of the UE, and an IP address and a tunnel termination point identifier from the eNB to the local gateway. And identifying, by the local gateway, an IP address and a tunnel endpoint identifier from the C-GW to the local gateway, and an IP address and a tunnel endpoint identifier assigned by the local gateway to the local gateway from the eNB Sent to the MME;
  • the eNB allocates an IP address and a tunnel endpoint identifier from the local gateway to the eNB for the user plane of the UE, and sends the IP address and the tunnel endpoint identifier of the eNB from the local gateway to the eNB to the eNB.
  • the MME Mobility Management Entity
  • the above-mentioned acquisition of the IP address and the tunnel endpoint identifier can be implemented by using the message between the network elements.
  • the specific implementation manner can be various.
  • the establishment process of the user plane bearer of the node is described in detail:
  • the MME sends a first request to the local gateway, where the first request is used to request to establish a data channel from the local gateway to the eNB and the C-GW;
  • the user identifier that is used to uniquely identify the UE may be carried by the first request, and the information that is sent by the other MME to the local gateway may be carried by the user identifier, which is not limited herein.
  • the local gateway receives the first request sent by the MME, where the first request includes an IP address and a tunnel endpoint identifier from the local gateway to the C-GW allocated by the C-GW to the user plane of the UE.
  • the MME can directly communicate with the C-GW, including controlling the The C-GW allocates user plane information, notifies the C-GW of the obtained information, and transmits the message using the C-GW.
  • the MME controls the C-GW to allocate an IP address and a tunnel endpoint identifier from the local gateway to the C-GW.
  • the IP address and the tunnel endpoint identifier from the local gateway to the C-GW can enable the local gateway to the information to establish a data channel from the local gateway to the C-GW, so that the data can be passed.
  • the channel sends information to the C-GW, that is, it can send information to the MME.
  • the local gateway returns a first response to the MME, where the first response includes an IP address and a tunnel endpoint identifier allocated by the local gateway to the user plane of the UE from the C-GW to the local gateway, and the local gateway sends the The IP address and tunnel endpoint identifier of the UE from the eNB to the local gateway allocated by the user plane;
  • the IP address and tunnel endpoint identifier assigned to the user plane of the UE from the C-GW to the local gateway can enable the C-GW that obtains the information to establish a C-GW from the C-GW to the local gateway.
  • the IP address and the tunnel endpoint identifier from the eNB to the local gateway allocated to the user plane of the UE may enable the eNB that obtains the information to establish a data channel from the eNB to the local gateway, so that the data can be passed. The channel sends information to the local gateway.
  • the MME sends a second request to the eNB, where the second request is used to request to establish a data channel from the eNB to the local gateway.
  • the eNB receives the second request sent by the MME, where the second request includes an IP address and a tunnel endpoint identifier that are allocated by the local gateway to the user plane of the UE from the eNB to the local gateway.
  • the eNB After the eNB obtains the IP address and tunnel termination identifier of the local gateway from the eNB to the local gateway, the eNB can establish a data channel from the eNB to the local gateway, and the eNB can send the data channel through the data channel.
  • the message is sent to the local gateway, and the UE is accessed by the eNB, that is, the local gateway can receive the message sent by the UE through the data channel.
  • the eNB returns a second response to the MME, where the second response includes an IP address and a tunnel endpoint identifier from the local gateway to the eNB allocated by the eNB to the user plane of the UE.
  • the MME sends the IP address and the tunnel endpoint identifier of the eNB from the local gateway to the eNB to the local gateway.
  • the local gateway After the local gateway obtains the IP address and the tunnel endpoint identifier of the eNB from the local gateway to the eNB, the local gateway can establish a data channel from the local gateway to the eNB, and the data channel can be sent through the data channel. Message to the eNB.
  • an embodiment of the MME in the embodiment of the present invention includes:
  • the first receiving module 901 is configured to receive an access request sent by the user equipment UE by using the base station eNB, where the access request carries the access information of the UE;
  • the first processing module 902 is configured to determine, according to the access information of the UE, a first local gateway corresponding to the UE, where the first local gateway is a gateway of a first local network, and the UE is established from the eNB
  • the user plane bearer between the core network gateway C-GW and the first local gateway is included as an intermediate node.
  • the first processing module 902 determines a first local gateway corresponding to the UE, where the first local gateway is a gateway of the first local network, and the UE is established from the eNB.
  • the user plane bearer between the gateway C-GW of the core network and the first local gateway is used as an intermediate node, so that the eNB and the gateway of the core network are used because the user plane carries the first local gateway as an intermediate node.
  • a data connection is established between the C-GW and the gateway of the first local network, and the UE accesses both the carrier network and the first local network through the eNB, so that the user accesses the operator at the same time. The purpose of the network and the local network.
  • the first processing module 902 in the MME is further configured to obtain, according to the access information of the UE, the first local gateway corresponding to the UE.
  • the function information of the eNB determines whether the eNB supports the local gateway connection according to the function information of the eNB.
  • the step of determining the first local gateway corresponding to the UE is triggered.
  • the UE may have a correspondence with only one local gateway, or may have a corresponding relationship with multiple local gateways:
  • the access information includes The user identifier is used, and the user identifier is used to uniquely identify the UE.
  • the user identifier is used to search for a first local gateway corresponding to the UE from a user management server.
  • the first local gateway may be the local gateway with the highest priority among the multiple local gateways corresponding to the UE.
  • the UE has a corresponding relationship with multiple local gateways, and the first processing module 902 uses the local gateway with the highest priority as the first local gateway.
  • the present invention is another embodiment of the MME in the embodiment, where the function information of the eNB further includes information about a local gateway accessed by the eNB, where the access information includes the user identifier, The user identifier is used to uniquely identify the UE, and the first processing module 902 is configured to determine, according to the access information of the UE, the first local gateway corresponding to the UE, specifically, according to the local gateway accessed by the eNB. The information, and the user identifier, determine a first local gateway corresponding to the UE.
  • the local gateway corresponding to the UE may be updated, as another embodiment of the MME in the embodiment of the present invention, where the first processing module 902 in the MME establishes the UE from the eNB to the After the C-GW includes the first local gateway as the user plane bearer of the intermediate node, the first processing module 902 is further configured to: when determining that the local gateway corresponding to the UE is updated to the third local gateway Establishing, for the UE, a user plane bearer including the third local gateway as an intermediate node between the eNB and the C-GW, where the third local gateway is a gateway of a third local network.
  • the first processing module 902 can determine the updated local gateway with the highest priority, and establish a user plane bearer with the updated local gateway as the intermediate node for the UE, thereby enhancing the adaptability of the network system and improving The interaction performance with the user.
  • a plurality of subnets may exist in the local network, and the UE may have a corresponding relationship with a part of the subnets.
  • the first processing module 902 further And acquiring, by using the user identifier, a first subnet corresponding to the UE, where the first subnet is located in the first local network;
  • the MME further includes:
  • the first sending module 903 is configured to send a first routing instruction to the first local gateway, where the The routing instruction includes the identifier of the first subnet and the user identifier, where the first routing instruction is used to indicate that the data of the UE accessing the first local network is routed to the first subnet. .
  • the method may be configured to: determine, according to the user identifier, a user group corresponding to the UE Determining a first subnet corresponding to the UE according to the location information of the UE and/or the current time, and the user group.
  • the first processing module 902 can determine the subnet corresponding to the UE in the local network, and the first sending module 903 sends a routing instruction to the local gateway, so that the local gateway routes the data of the UE to access the local network. In this subnet, precise control of network access rights is achieved.
  • the module 902 is further configured to: determine a second subnet corresponding to the UE, where the second subnet is a subnet with the highest priority or a unique subnet among the plurality of subnets corresponding to the current UE; The second subnet is located in the first local network; the gateway of the first local network is determined to be the first local gateway.
  • the first processing module 902 may be specifically configured to: determine a user group corresponding to the UE; and use, according to location information and/or current time of the UE, and the second user group. Determining a user group determined by the unit, and determining a second subnet corresponding to the UE.
  • the UE corresponds to the subnet
  • the first processing module 902 can determine the subnet corresponding to the UE, determine which local network the subnet is located in, and find the local gateway of the local network, and finally determine that it needs to be the middle.
  • the node establishes a local gateway hosted by the user plane.
  • the first sending module 903 in the foregoing embodiment may be further configured to: send a second routing instruction to the first local gateway, where the second routing instruction is And including the identifier of the second subnet and the identifier of the UE, where the routing instruction is used to indicate that the data of the UE accessing the first local network is routed to the second subnet.
  • the first sending module 903 sends the second routing instruction, so that the local gateway routes the data of the UE to access the first local network to the second subnet identified by the second subnet identifier corresponding to the UE, Precise control of network permissions.
  • the subnet identifier corresponding to the UE can also be updated.
  • other modules can be A corresponding processing is performed, as another embodiment of the MME in the embodiment of the present invention, where the first processing module 902 establishes, for the UE, the first local gateway from the eNB to the core network gateway C-GW.
  • the first processing module 902 is further configured to: determine that the subnet corresponding to the UE is updated to a third subnet; determine that the third subnet is located in the second local network, where the second The local network is different from the first local network; determining that the gateway of the second local network is a second local gateway; establishing, for the UE, the second between the eNB and the C-GW The local gateway is hosted as a user plane of the intermediate node.
  • the first processing module 902 can determine the updated subnet corresponding to the UE, determine the local gateway corresponding to the UE according to the subnet, and establish a user plane bearer with the local gateway as the intermediate node for the UE.
  • the adaptability of the network system is enhanced, and the interaction performance with the user is improved.
  • the first sending module 903 is further configured to send a third routing instruction is sent to the second local gateway, where the third routing instruction includes an identifier of the third subnet and the user identifier, where the routing instruction is used to indicate that the UE accesses the second The data of the local network is routed to the third subnet.
  • the first sending module 903 sends the third routing instruction, so that the local gateway routes the data of the UE accessing the second local network to the third subnet corresponding to the UE, thereby implementing precise control of the network authority.
  • the foregoing first processing module 902 establishes, for the UE, that the local gateway is included as an intermediate node between the eNB and the C-GW.
  • the network name of the subnet corresponding to the UE is obtained according to the user identifier, and the first sending module 903 is configured to send the network name to the The UE causes the UE to display the network name in a user interface.
  • the foregoing first sending module 903 is further configured to notify a current subnet corresponding to the UE to the C-GW;
  • the first receiving module 901 is further configured to receive, by the C-GW, a domain name resolution server address that is allocated to a subnet corresponding to the UE, where the domain name resolution server of the domain name resolution server address identifier stores the UE Correspondence between the domain name and IP address of the network device in the corresponding subnet;
  • the first sending module 903 is further configured to: perform domain name resolution on the subnet corresponding to the UE.
  • the server address is sent to the UE.
  • the first sending module 903 sends the network name of the subnet to the UE, so that the network name can be displayed on the user interface of the UE, so that the user can more intuitively understand which subnet is currently accessed, and the user is improved. Human-computer interaction performance.
  • the first sending module 903 is further configured to notify the local network corresponding to the current UE to the C-GW;
  • the first receiving module 901 is further configured to receive, by the C-GW, a domain name resolution server address that is allocated by the local network corresponding to the UE, where the domain name resolution server of the domain name resolution server address identifier stores the UE Corresponding relationship between the domain name and the IP address of the network device in the corresponding local network;
  • the first sending module 903 is further configured to send, to the UE, a domain name resolution server address allocated to a local network corresponding to the UE.
  • the foregoing first processing module 902 establishes, for the UE, a user plane bearer that includes the first local gateway as an intermediate node from the eNB to a core network gateway C-GW, Specifically, the first sending module 901 is configured to obtain an IP address and a tunnel endpoint identifier that are allocated by the C-GW from the local gateway to the C-GW, and control the first sending module 903 to Sending, by the C-GW, an IP address and a tunnel endpoint identifier from the local gateway to the C-GW to the local gateway; and controlling the first receiving module 901 to acquire an eNB-assigned from the local gateway to the eNB The IP address and the tunnel endpoint identifier, and control the first sending module 903 to send the IP address and the tunnel endpoint identifier of the eNB from the local gateway to the eNB to the local gateway; A receiving module 901 acquires an IP address and a tunnel endpoint identifier allocated by the local gateway from the C-GW to
  • a sending module 903 sends the IP address and the tunnel endpoint identifier of the local gateway allocated from the C-GW to the local gateway to the C-GW, and allocates the local gateway from the eNB to the local gateway.
  • the IP address and tunnel endpoint identifier are sent to the eNB.
  • an embodiment of a local gateway in the embodiment of the present invention includes:
  • the second receiving module 1001 is configured to receive a user plane sent by the mobile function management entity MME. And the information about the user plane carried by the gateway C-GW of the core network from the local gateway to the C-GW, where the UE accesses the core by the eNB. a local gateway, where the local gateway is a local gateway corresponding to the UE;
  • the second processing module 1002 is configured to establish, according to the user plane setup request, a user plane bearer that includes the local gateway as an intermediate node from the eNB to the C-GW according to the user plane setup request.
  • the second processing module 1002 can establish a user plane bearer for the UE as an intermediate node, and implement the UE access to the operator network and the local network that uses the gateway as its own.
  • the second processing module 1002 is further configured to: determine whether the received data of the UE accessing the network is data that accesses the local network;
  • the local gateway further includes:
  • the second sending module 1003 is configured to: when determining that the data of the UE accessing the network is data accessing the local network, routing the data of the UE to access the network to the local network; when determining that the data of the UE accessing the network is not When accessing data of the local network, data of the UE accessing the network is forwarded to the C-GW.
  • the local gateway can obtain the subnet identifier corresponding to the UE, and can also obtain the local gateway in the embodiment of the present invention by using the two methods as an example.
  • the foregoing second processing module 1002 establishes, according to the user plane establishment request, an inclusion between the eNB and the C-GW for the UE.
  • the second processing module 1002 is further configured to determine the UE according to the user identifier. a corresponding subnet, the user identifier is used to uniquely identify the UE, and the user plane establishment request includes the user identifier;
  • the second sending module 1003 When the second sending module 1003 routes the data of the UE to the network to the local network, the second sending module 1003 is specifically configured to route the data of the UE to access the network to the subnet corresponding to the UE.
  • the foregoing second processing module 1002 establishes, according to the user plane establishment request, an inclusion between the eNB and the C-GW for the UE.
  • the second sending module Before the routing of the data of the UE accessing the network to the local network, the second receiving module 1001 is further configured to receive a routing instruction sent by the MME, where the routing instruction includes a subnet identifier and a user identifier, where the user identifier is For uniquely identifying the UE, the subnet identifier is used to uniquely identify a subnet;
  • the method is specifically configured to: route the data of the UE to access the network to the subnet identifier in the routing instruction according to the routing instruction. Identified in the subnet.
  • the MME obtains the subnet identifier corresponding to the UE, the second receiving module 1001 receives the routing instruction sent by the MME, and the second sending module 1003 routes the data of the UE accessing the local network to the subnet according to the routing instruction.
  • the subnet identified by the identifier implements fine control of network permissions and reduces the data processing pressure of the local gateway.
  • the foregoing second processing module 1003 establishes, according to the user plane establishment request, an inclusion between the eNB and the C-GW for the UE.
  • the second processing module 1002 is further configured to determine the UE according to the user identifier. a corresponding subnet, the user identifier is used to uniquely identify the UE, and the user plane establishment request includes the user identifier;
  • the second sending module 1003 When the second sending module 1003 routes the data of the UE to the network to the local network, the second sending module 1003 is specifically configured to route the data of the UE to access the network to the subnet corresponding to the UE.
  • the second processing module 1002 obtains the subnet corresponding to the UE after the UE is established as the user plane of the intermediate node, and the second sending module 1003 routes the data of the UE to the local network to the subnet. , to achieve fine control of network access rights.
  • the second processing module 1002 determines whether the received data of the UE accessing the network is data for accessing the local network, specifically, when receiving When the UE accesses the data of the network, determining, according to the destination IP address of the data of the UE accessing the network, whether the data of the UE accessing the network is data for accessing the local network, where the local gateway stores the local network.
  • the second receiving module 1001 when the second receiving module 1001 receives the user plane establishment request sent by the mobile function management entity MME, the second receiving module 1001 is specifically used to obtain Obtaining an IP address and a tunnel endpoint identifier from the local gateway to the C-GW allocated by the C-GW to the user plane of the UE;
  • the second processing module 1002 is specifically configured to use, according to the user plane establishment request, a user plane bearer that includes the local gateway as an intermediate node between the eNB and the C-GW. : assigning, to the user plane of the UE, an IP address and a tunnel endpoint identifier from the C-GW to the local gateway, and an IP address and a tunnel endpoint identifier from the eNB to the local gateway; controlling the second sending
  • the module 1003 assigns, by the second processing module 1002, an IP address and a tunnel endpoint identifier from the C-GW to the local gateway, and an IP address from the eNB to the local gateway allocated by the second processing module 1002. And the tunnel endpoint identifier is sent to the MME.
  • an embodiment of a base station in an embodiment of the present invention includes:
  • the third processing module 1101 is configured to access the UE to the core network, where the gateway of the core network is a C-GW, and establish, by the UE, a local gateway corresponding to the UE from the eNB to the C-GW.
  • the user plane of the intermediate node is carried, and the local gateway is a gateway of a local network;
  • the third receiving module 1102 is configured to receive data that the UE accesses the local network.
  • the third sending module 1103 is configured to send, when the UE accesses data of the local network, data that accesses the local network to the local gateway.
  • the third sending module 1103 can send the data of the UE received by the third receiving module 1102 to the local network to the local.
  • the gateway implements the purpose of simultaneously accessing the carrier network and the local network.
  • the base station may also obtain the local gateway or subnet identifier corresponding to the UE and send the identifier to the MME.
  • the third processing module 1101 establishes a slave for the UE.
  • the eNB and the C-GW include the local gateway corresponding to the UE as the user plane bearer of the intermediate node, the eNB is further configured to determine a local gateway or a subnet corresponding to the UE.
  • the third sending module 1103 is further configured to notify the MME of the determined local gateway or subnet corresponding to the UE.
  • the third sending module 1103 may notify the MME of the local gateway or subnet corresponding to the UE determined by the third processing module 1101, which reduces the operating pressure of the MME.
  • the third processing module 1101 establishes, for the UE, a user plane that includes the local gateway corresponding to the UE from the eNB to the C-GW as an intermediate node.
  • the bearer is specifically configured to: control the third receiving module 1102 to obtain an IP address and a tunnel endpoint identifier from the eNB to the local gateway allocated by the local gateway to the user plane of the UE; and allocate a user plane for the UE
  • the local gateway identifies the IP address and the tunnel endpoint of the eNB, and controls the third sending module 1103 to send the IP address and the tunnel endpoint identifier from the local gateway to the eNB that is allocated by the third processing module 1101. To the MME.
  • FIG. 12 it is a schematic structural diagram of a network device 1200, which may represent an MME, a local gateway, or a base station in the embodiment of the present invention, including:
  • the input device 1201, the output device 1202, the processor 1203, and the memory 1204 (the number of the processors 1203 may be one or more, and one processor 1203 is taken as an example in FIG. 12).
  • the input device 1201, the output device 1202, the processor 1203, and the memory 1204 may be connected by a bus or other means, wherein the bus connection is taken as an example in FIG.
  • the operating instruction is stored by calling the memory 1204, and the processor 1203 is configured to perform the following steps:
  • a user plane bearer from the eNB to the core network gateway C-GW that includes the first local gateway as an intermediate node.
  • the processor 1203 is further configured to perform the following steps before the step of determining the first local gateway corresponding to the UE according to the access information of the UE:
  • the step of determining the first local gateway corresponding to the UE according to the access information of the UE is triggered.
  • the access information includes the user identifier
  • the user identifier is used to uniquely identify the UE
  • the processor 1203 performs the access request according to the UE.
  • the first local gateway is a local gateway with the highest priority among the plurality of local gateways corresponding to the UE.
  • the function information of the eNB further includes information about a local gateway accessed by the eNB; the access information includes the user identifier, where the user identifier is used to uniquely identify the location
  • the processor 1203 performs the step of determining the first local gateway corresponding to the UE according to the access information of the UE, the following steps are specifically performed:
  • the eNB Determining, according to the information of the local gateway accessed by the eNB, and the user identifier, the first local gateway corresponding to the UE.
  • the processor 1203 performs, for the UE, establishing a user plane bearer from the eNB to the C-GW that includes the first local gateway as an intermediate node. After the step, it is also used to perform the following steps:
  • the local gateway corresponding to the UE When it is determined that the local gateway corresponding to the UE is updated to the third local gateway, establish, for the UE, a user plane bearer that includes the third local gateway as an intermediate node from the eNB to the C-GW.
  • the third local gateway is a gateway of the third local network.
  • the processor 1203 is further configured to perform the following steps:
  • the processor 1203 when the processor 1203 performs the step of acquiring the first subnet corresponding to the UE according to the user identifier, performing the following steps:
  • the processor 1203 performs the establishment of the UE for the UE. After the step of the user plane bearer including the first local gateway as the intermediate node between the eNB and the core network gateway C-GW, the following steps are also performed:
  • a user plane bearer from the eNB to the C-GW that includes the second local gateway as an intermediate node.
  • the processor 1203 is further configured to perform the following steps:
  • the processor 1203 performs the step of establishing, for the UE, a user plane bearer including the local gateway as an intermediate node between the eNB and the C-GW. It is also used to perform the following steps:
  • the network name is sent to the UE by a non-access stratum NAS message, such that the UE displays the network name in a user interface.
  • the processor 1203 is further configured to perform the following steps:
  • the processor 1203 is further configured to perform the following steps:
  • the C-GW And receiving, by the C-GW, a domain name resolution server address allocated by the local network corresponding to the UE, where the domain name resolution server of the domain name resolution server address identifier stores the UE corresponding Correspondence between the domain name and IP address of the network device in the local network;
  • the processor 1203 performs the user plane bearer that includes the first local gateway as an intermediate node between the eNB and the core network gateway C-GW for the UE.
  • the steps are as follows:
  • the operating instruction is stored by calling the memory 1204, and the processor 1203 is configured to perform the following steps:
  • a user plane bearer including the local gateway as an intermediate node from the eNB to the C-GW according to the user plane establishment request a user plane bearer including the local gateway as an intermediate node from the eNB to the C-GW according to the user plane establishment request.
  • the processor 1203 is further configured to perform the following steps:
  • the output device 1202 is instructed to forward data of the UE accessing the network to the C-GW.
  • the processor 1203 performs, according to the user plane establishment request, establishing, for the UE, the local gateway from the eNB to the C-GW as an intermediate node.
  • the method further includes the following steps:
  • the data of the UE accessing the network is routed to a subnet corresponding to the UE.
  • the processor 1203 performs, according to the user plane establishment request, establishing, for the UE, the local gateway from the eNB to the C-GW as an intermediate node.
  • the method further includes the following steps:
  • the data of the UE accessing the network is routed to the subnet identified by the subnet identifier in the routing instruction.
  • the processor 1203 when the processor 1203 performs the step of determining whether the received data of the UE accessing the network is data accessing the local network, performing the following steps:
  • the memory 1204 When receiving the data of the UE accessing the network, determining, according to the destination IP address of the data of the UE accessing the network, whether the data of the UE accessing the network is data for accessing the local network, where the memory 1204 stores A list of IP addresses of network devices on the local network.
  • the processor 1203 performs the step of instructing the input device 1201 to receive a user plane establishment request sent by the mobile function management entity MME, specifically executing The following steps are taken:
  • the processor 1203 performs the step of establishing, according to the user plane establishment request, a user plane bearer that includes the local gateway as an intermediate node between the eNB and the C-GW according to the user plane setup request, Specifically, perform the following steps:
  • the operating instruction is stored by calling the memory 1204, and the processor 1203 is configured to perform the following steps:
  • the UE is connected to the core network, and the gateway of the core network is a C-GW;
  • a user plane bearer from the eNB to the C-GW that includes the local gateway corresponding to the UE as an intermediate node, where the local gateway is a gateway of a local network;
  • the output device 1202 is instructed to send data accessing the local network to the local gateway.
  • the processor 1203 performs the step of establishing, for the UE, a user plane bearer from the eNB to the C-GW that includes the local gateway corresponding to the UE as an intermediate node.
  • the processor is also used to perform the following steps:
  • the processor 1203 performs the step of establishing, for the UE, a user plane bearer including an local gateway corresponding to the UE as an intermediate node between the eNB and the C-GW, specifically Perform the following steps:
  • the output device 1202 is instructed to send the assigned IP address and tunnel endpoint identifier from the local gateway to the eNB to the MME.
  • the system for accessing the local network in the embodiment of the present invention includes:
  • the MME 1301 shown in any one of the embodiments corresponding to any one of the embodiments shown in FIG. 9 or FIG. 12 is shown in any one of the embodiments corresponding to the local gateway 1302, FIG. 11 or FIG. Base station 1303 and UE 1304.
  • the foregoing system may further include:
  • a user management server 1305, configured to store a correspondence between the UE and a subnet and/or a local gateway;
  • the domain name resolution server 1306 is configured to store a domain name and an IP address of the network device in the subnet corresponding to the UE, and convert the domain name of the service server in the subnet corresponding to the UE to the IP address of the service server.
  • system may further include:
  • the open platform 1307 is configured to configure the user management server 1305 and the domain name resolution server 1306, or the local gateway 1302.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated as The components displayed by the unit may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

本发明实施例公开了接入本地网络的方法和相关设备，用于使用户能同时接入运营商网络和本地网络。本发明实施例方法包括：MME接收基站eNB发送的用户设备UE的接入请求，其中该接入请求携带UE的接入信息，根据该UE的接入信息确定该UE对应的第一本地网关，为该UE建立从该eNB到核心网网关C-GW之间的包含有该第一本地网关作为中间节点的用户面承载。

Description

接入本地网络的方法和相关设备 技术领域
本发明涉及通信领域，尤其涉及接入本地网络的方法和相关设备。
背景技术
近年来，长期演进(Long Term Evolution，LTE)/4G核心网络(Evolved Packet Core，EPC)网络以其高带宽、高服务质量成为全球第4代移动通信采用的主要技术。智能终端和移动应用的迅速普及也带来了移动互联网的快速发展。
在企业里，自带设备(Bring Your Own Device，BYOD)办公成为趋势，目前企业内BYOD无线办公接入本地网络时，仍以通过本地无线路由器采用无线保真(WIreless-FIdelity，Wi-Fi)技术接入为主。
然而，通过Wi-Fi接入本地网络后，用户就不能使用运营商网络(例如高带宽、高服务质量的4G通信网络)，若需要使用，还需要先断开该Wi-Fi连接，这又导致用户不能访问本地网络。
发明内容
本发明实施例提供了接入本地网络的方法和相关设备，用于使用户能同时接入运营商网络和本地网络。
本发明实施例第一方面提供了一种接入本地网络的方法，所述方法包括：
移动功能管理实体MME接收基站eNB发送的用户设备UE的接入请求，其中所述接入请求携带UE的接入信息；
所述MME根据所述UE的接入信息确定所述UE对应的第一本地网关，所述第一本地网关为第一本地网络的网关；
所述MME为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载。
核心网的移动功能管理实体MME根据基站eNB发送的用户设备UE的接入请求中携带的UE的接入信息，能确定该UE对应的第一本地网关，该第一 本地网关为第一本地网络的网关，并为该UE建立从该eNB到核心网的网关C-GW之间的包含有该第一本地网关作为中间节点的用户面承载，这样，由于该用户面承载以该第一本地网关作为中间节点，则eNB与核心网的网关C-GW和第一本地网络的网关之间都建立了数据连接，UE通过该eNB，既能接入运营商网络，同时也能接入该第一本地网络，实现了使用户能同时接入运营商网络和本地网络的目的。
结合本发明实施例的第一方面，本发明实施例第一方面的第一种实现方式中，所述MME根据所述UE的接入信息确定所述UE对应的第一本地网关之前还包括：
所述MME获取所述eNB的功能信息；
所述MME根据所述eNB的功能信息判断所述eNB是否支持本地网关连接；
当确定所述eNB支持本地网关连接时，所述MME触发所述MME根据所述UE的接入信息确定所述UE对应的第一本地网关的步骤。
当根据eNB的功能信息确定eNB支持本地网关连接才触发后续步骤，避免系统执行多余步骤，提高了系统运行的效率。
结合本发明实施例的第一方面或第一方面的第一种实现方式，本发明实施例第一方面的第二种实现方式中，所述接入信息中包括有所述用户标识，所述用户标识用于唯一标识所述UE，所述MME根据所述UE的接入信息确定所述UE对应的第一本地网关，具体包括：
所述MME根据所述用户标识，从用户管理服务器中查找所述UE对应的第一本地网关。
根据所述用户标识从用户管理服务器中查找所述UE对应的第一本地网关，保证了查找第一本地网关的快速准确。
结合本发明实施例第一方面的第二种实现方式，本发明实施例第一方面的第三种实现方式中，所述第一本地网关为所述UE对应的多个本地网关中优先级最高的本地网关。
一个UE可以对应多个具有优先级高低的本地网关，提高了方案对各种场景的适应能力。
结合本发明实施例第一方面的第一种实现方式，本发明实施例第一方面的第四种实现方式中，所述eNB的功能信息中还包括所述eNB接入的本地网关的信息；所述接入信息中包括有所述用户标识，所述用户标识用于唯一标识所述UE；
所述MME根据所述UE的接入信息确定所述UE对应的第一本地网关，具体包括：
所述MME根据所述eNB接入的本地网关的信息、以及所述用户标识，确定所述UE对应的第一本地网关。
能根据用户标识以及eNB接入的本地网关的信息确定UE对应的第一本地网关，能更好的满足用户的实际需求，提高了人机交互性能。
结合本发明实施例第一方面的第二种实现方式至第四种实现方式中任一种实现方式，本发明实施例中第一方面的第五种实现方式中，所述MME为所述UE建立从所述eNB到所述C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载的步骤之后，所述方法还包括：
当所述MME确定所述UE对应的本地网关更新为第三本地网关时，所述MME为所述UE建立从所述eNB到所述C-GW之间的包含有所述第三本地网关作为中间节点的用户面承载，所述第三本地网关为第三本地网络的网关。
能自动根据UE对应的本地网络的更新重新建立用户面承载，提高了用户体验度，提高了系统智能程度。
结合本发明实施例第一方面的第二种实现方式至第四种实现方式中任一种实现方式，本发明实施例中第一方面的第六种实现方式中，所述方法还包括：
所述MME根据所述用户标识获取所述UE对应的第一子网，所述第一子网位于所述第一本地网络中；
所述MME发送第一路由指令给所述第一本地网关，所述第一路由指令中包括所述第一子网的标识和所述用户标识，所述第一路由指令用于指示将所述UE访问所述第一本地网络的数据路由到所述第一子网中。
能确定UE在该本地网络中对应的子网，发送路由指令给该本地网关，使该本地网关将UE访问该本地网络的数据都路由到该子网中，实现了网络访问权限的精确控制。
结合本发明实施例第一方面的第六种实现方式，本发明实施例第一方面的第七种实现方式中，所述MME根据所述用户标识获取所述UE对应的第一子网，具体包括：
所述MME根据所述用户标识确定所述UE对应的用户组；
所述MME根据UE的位置信息和/或当前时间，以及所述用户组，确定所述UE对应的第一子网。
能先确定UE对应的用户组，再根据相关信息确定UE对应的第一子网，实现了对网络访问权限的多重精确控制。
结合本发明实施例第一方面的第六种实现方式或第七种实现方式，本发明实施例第一方面的第八种实现方式中，所述MME为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载的步骤之后，所述方法还包括：
所述MME确定所述UE对应的子网更新为第三子网；
所述MME确定第三子网位于第二本地网络中，所述第二本地网络与所述第一本地网络不同；
所述MME确定所述第二本地网络的网关为第二本地网关；
所述MME为所述UE建立从所述eNB到所述C-GW之间的包含有所述第二本地网关作为中间节点的用户面承载。
能自动根据UE对应的子网的更新重新建立用户面承载，提高了用户体验度，提高了系统智能程度。
结合本发明实施例第一方面的第八种实现方式，本发明第一方面的第九种实现方式中，所述MME确定所述第二本地网络的网关为第二本地网关的步骤之后还包括：
所述MME发送第三路由指令给所述第二本地网关，所述第三路由指令中包括所述第三子网的标识和所述用户标识，所述路由指令用于指示将所述UE访问所述第二本地网络的数据路由到所述第三子网中。
自动按照重建的用户面承载进行数据路由，提高了系统智能程度
结合本发明实施例第一方面的第二种实现方式至第九种实现方式中任一种实现方式，本发明实施例第一方面的第十种实现方式中，所述MME为所述 UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载的步骤之后还包括：
所述MME根据所述用户标识获取所述UE对应的子网的网络名称；
所述MME通过非接入层NAS消息将所述网络名称发送到所述UE，使得所述UE在用户界面显示所述网络名称。
使得该网络名称可以在UE的用户界面显示，便于用户更直观的了解目前访问的子网是哪一个，提升了人机交互性能。
结合本发明实施例第一方面的第六种实现方式至第十种实现方式中任一种实现方式，本发明实施例第一方面的第十一种实现方式中，所述方法还包括：
所述MME将当前所述UE对应的子网通知到所述C-GW；
所述MME接收所述C-GW返回的为所述UE对应的子网分配的域名解析服务器地址，所述域名解析服务器地址标识的域名解析服务器中存储有所述UE对应的子网中网络设备的域名与IP地址的对应关系；
所述MME将为所述UE对应的子网分配的域名解析服务器地址发送给所述UE。
为UE对应的子网分配域名解析服务器地址，实现了域名的精确解析。
结合本发明实施例的第一方面至第一方面的第十一种实现方式中任一种实现方式，本发明实施例第一方面的第十二种实现方式中，所述方法还包括：
所述MME将当前所述UE对应的本地网络通知到所述C-GW；
所述MME接收所述C-GW返回的为所述UE对应的本地网络分配的域名解析服务器地址，所述域名解析服务器地址标识的域名解析服务器中存储有所述UE对应的本地网络中网络设备的域名与IP地址的对应关系；
所述MME将为所述UE对应的本地网络分配的域名解析服务器地址发送给所述UE。
为UE对应的本地网络分配域名解析服务器地址，实现了域名的精确解析。
结合本发明实施例的第一方面至第一方面的第十二种实现方式中任一种实现方式，本发明实施例第一方面的第十三种实现方式中，所述MME为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载，具体包括：
MME获取C-GW分配的从所述本地网关到所述C-GW的IP地址和隧道终结点标识，并将所述C-GW分配的从所述本地网关到所述C-GW的IP地址和隧道终结点标识发送至本地网关；
所述MME获取eNB分配的从所述本地网关到所述eNB的IP地址和隧道终结点标识，并将所述eNB分配的从所述本地网关到所述eNB的IP地址和隧道终结点标识发送至本地网关；
所述MME获取所述本地网关分配的从该C-GW到该本地网关的IP地址和隧道终结点标识，以及所述本地网关分配的从该eNB到该本地网关的IP地址和隧道终结点标识，并将所述本地网关分配的从该C-GW到该本地网关的IP地址和隧道终结点标识发送给C-GW，以及将所述本地网关分配的从该eNB到该本地网关的IP地址和隧道终结点标识发送给eNB。
通过为各网元分配IP地址和隧道终结点标识，保证了以本地网关作为中间节点的用户面承载的顺利建立，保证了建立的用户面承载的稳定性。
本发明实施例第二方面提供了一种接入本地网络的方法，所述方法包括：
本地网关接收移动功能管理实体MME发送的用户面建立请求，所述用户面建立请求中包括核心网的网关C-GW为UE建立的从所述本地网关到C-GW的用户面承载的信息，其中，所述UE由eNB接入所述核心网，所述本地网关为所述UE对应的本地网关；
所述本地网关根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载。
本地网关能为UE建立以自己作为中间节点的用户面承载，实现UE对运营商网络和以自己作为网关的本地网络的访问。
结合本发明实施例的第二方面，本发明实施例第二方面的第一种实现方式中，所述方法还包括：
所述本地网关确定接收到的UE访问网络的数据是否为访问所述本地网络的数据；
当确定所述UE访问网络的数据是访问所述本地网络的数据时，所述本地网关将所述UE访问网络的数据路由到本地网络；
当确定所述UE访问网络的数据不是访问所述本地网络的数据时，所述本 地网关将所述UE访问网络的数据转发到所述C-GW。
根据是否为访问本地网络的数据，进行不同路径的数据转发，实现了对网络数据访问的精确控制，提升了数据处理速率。
结合本发明实施例第二方面的第一种实现方式，本发明实施例第二方面的第二种实现方式中，所述本地网关根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载的步骤之后，所述本地网关将所述UE访问网络的数据路由到本地网络的步骤之前还包括：
所述本地网关根据用户标识确定所述UE对应的子网，所述用户标识用于唯一标识所述UE，所述用户面建立请求中包括所述用户标识，则所述本地网关将所述UE访问网络的数据路由到本地网络的步骤包括：所述本地网关将所述UE访问网络的数据路由到所述UE对应的子网中。
本地网关为UE建立以自己为中间节点的用户面承载后，自己获取该UE对应的子网，将UE访问本地网络的数据路由到该UE对应的子网中，实现了网络访问权限的精细控制。
结合本发明实施例第二方面的第一种实现方式，本发明实施例第二方面的第三种实现方式中，所述本地网关根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载的步骤之后，所述本地网关将所述UE访问网络的数据路由到本地网络之前还包括：
所述本地网关接收MME发送的路由指令，所述路由指令中包括子网标识和用户标识，所述用户标识用于唯一标识所述UE，所述子网标识用于唯一标识一个子网；
所述本地网关将所述UE访问网络的数据路由到本地网络，具体包括：
所述本地网关按照所述路由指令，将所述UE访问网络的数据路由到所述路由指令中子网标识所标识的子网中。
本发明实施例中，由MME获取与UE对应的子网标识，本地网关接收MME发送的路由指令，按照该路由指令将UE访问本地网络的数据路由到该子网标识所标识的子网中，实现了对网络权限的精细控制且减轻了本地网关的 数据处理压力。
结合本发明实施例第二方面的第一种实现方式至第三种实现方式中任一种实现方式，本发明实施例第二方面的第四种实现方式中，所述本地网关确定接收到的UE访问网络的数据是否为访问所述本地网络的数据，具体包括：
当所述本地网关接收到UE访问网络的数据时，所述本地网关根据所述UE访问网络的数据的目的IP地址，确定所述UE访问网络的数据是否为访问所述本地网络的数据，其中，所述本地网关中存储有本地网络的网络设备的IP地址的列表。
根据UE访问网络的数据的目的IP地址确定是否为访问本地网络的数据，保证了判断的准确性。
结合本发明实施例的第二方面至第二方面的第四种实现方式，本发明实施例第二方面的第五种实现方式中，所述本地网关接收移动功能管理实体MME发送的用户面建立请求，具体包括：
所述本地网关获取C-GW为UE的用户面分配的从该本地网关到C-GW的IP地址和隧道终结点标识；
所述本地网关根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载，具体包括：
所述本地网关为所述UE的用户面分配从该C-GW到该本地网关的IP地址和隧道终结点标识，以及从该eNB到该本地网关的IP地址和隧道终结点标识，并将所述本地网关分配的从该C-GW到该本地网关的IP地址和隧道终结点标识、以及所述本地网关分配的从该eNB到该本地网关的IP地址和隧道终结点标识发送给所述MME。
通过IP地址和隧道终结点标识的获取和分配，保证了用户面承载的顺利建立以及稳定性。
本发明实施例第三方面提供了一种接入本地网络的方法，所述方法包括：
eNB将UE接入到核心网，所述核心网的网关为C-GW；
所述eNB为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载，所述本地网关为一个本地网络的网关；
当所述eNB接收到所述UE访问所述本地网络的数据时，所述eNB将访 问所述本地网络的数据发送到所述本地网关。
为UE建立以本地网关作为中间节点的用户面承载后，eNB能将接收到的UE访问该本地网络的数据发送到本地网关，实现了同时接入运营商网络和本地网络的目的。
结合本发明实施例的第三方面，本发明实施例第三方面的第一种实现方式中，所述eNB为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载的步骤之前还包括：
所述eNB确定所述UE对应的本地网关或子网；
所述eNB将确定的所述UE对应的本地网关或子网通知到MME。
由eNB确定UE对应的本地网关或子网，再通知MME，减轻了MME的运行负荷。
结合本发明实施例的第三方面或第三方面的第一种实现方式，本发明实施例第三方面的第二种实现方式中，所述eNB为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载，具体包括：
所述eNB获取本地网关给该UE的用户面分配的从该eNB到该本地网关的IP地址和隧道终结点标识；
所述eNB为该UE的用户面分配从该本地网关到该eNB的IP地址和隧道终结点标识，并将所述eNB分配的从该本地网关到该eNB的IP地址和隧道终结点标识发送给所述MME。
通过IP地址和隧道终结点标识的获取和分配，保证了用户面承载的顺利建立以及稳定性。
本发明实施例第四方面提供了一种MME，包括：
第一接收模块，用于接收基站eNB发送的用户设备UE的接入请求，其中所述接入请求携带UE的接入信息；
第一处理模块，用于根据所述UE的接入信息确定所述UE对应的第一本地网关，所述第一本地网关为第一本地网络的网关，为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载。
结合本发明实施例的第四方面，本发明实施例第四方面的第一种实现方式 中，所述第一处理模块根据所述UE的接入信息确定所述UE对应的第一本地网关之前还用于，获取所述eNB的功能信息，根据所述eNB的功能信息判断所述eNB是否支持本地网关连接，当确定所述eNB支持本地网关连接时，触发确定所述UE对应的第一本地网关的步骤。
结合本发明实施例的第四方面或第四方面的第一种实现方式，本发明实施例第四方面的第二种实现方式中，所述接入信息中包括有所述用户标识，所述用户标识用于唯一标识所述UE，所述第一处理模块根据所述UE的接入信息确定所述UE对应的第一本地网关时，具体用于根据所述用户标识，从用户管理服务器中查找所述UE对应的第一本地网关。
结合本发明实施例第四方面的第二种实现方式，本发明实施例第四方面的第三种实现方式中，所述第一本地网关为所述UE对应的多个本地网关中优先级最高的本地网关。
结合本发明实施例第四方面的第一种实现方式，本发明实施例第四方面的第四种实现方式中，所述eNB的功能信息中还包括所述eNB接入的本地网关的信息；所述接入信息中包括有所述用户标识，所述用户标识用于唯一标识所述UE，所述第一处理模块根据所述UE的接入信息确定所述UE对应的第一本地网关时，具体用于，根据所述eNB接入的本地网关的信息、以及用户标识，确定所述UE对应的第一本地网关。
结合本发明实施例第四方面的第二种实现方式至第四种实现方式中任一种实现方式，本发明实施例中第四方面的第五种实现方式中，所述第一处理模块为所述UE建立从所述eNB到所述C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载之后，所述第一处理模块还用于，当确定所述UE对应的本地网关更新为第三本地网关时，为所述UE建立从所述eNB到所述C-GW之间的包含有所述第三本地网关作为中间节点的用户面承载，所述第三本地网关为第三本地网络的网关。
结合本发明实施例第四方面的第二种实现方式至第四种实现方式中任一种实现方式，本发明实施例中第四方面的第六种实现方式中，所述第一处理模块还用于，根据所述用户标识获取所述UE对应的第一子网，所述第一子网位于所述第一本地网络中；
所述MME还包括：
第一发送模块，用于发送第一路由指令给所述第一本地网关，所述第一路由指令中包括所述第一子网的标识和所述用户标识，所述第一路由指令用于指示将所述UE访问所述第一本地网络的数据路由到所述第一子网中。
结合本发明实施例第四方面的第六种实现方式，本发明实施例第四方面的第七种实现方式中，所述第一处理模块根据所述用户标识获取所述UE对应的第一子网时，具体用于：根据所述用户标识确定所述UE对应的用户组；根据UE的位置信息和/或当前时间，以及所述用户组，确定所述UE对应的第一子网。
结合本发明实施例第四方面的第六种实现方式或第七种实现方式，本发明实施例第四方面的第八种实现方式中，所述第一处理模块为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载之后，所述第一处理模块还用于：确定所述UE对应的子网更新为第三子网；确定第三子网位于第二本地网络中，所述第二本地网络与所述第一本地网络不同；确定所述第二本地网络的网关为第二本地网关；为所述UE建立从所述eNB到所述C-GW之间的包含有所述第二本地网关作为中间节点的用户面承载。
结合本发明实施例第四方面的第八种实现方式，本发明第四方面的第九种实现方式中，所述第一处理模块确定所述第二本地网络的网关为第二本地网关之后，所述第一发送模块还用于，发送第三路由指令给所述第二本地网关，所述第三路由指令中包括所述第三子网的标识和所述用户标识，所述路由指令用于指示将所述UE访问所述第二本地网络的数据路由到所述第三子网中。
结合本发明实施例第四方面的第二种实现方式至第九种实现方式中任一种实现方式，本发明实施例第四方面的第十种实现方式中，所述第一处理模块为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载之后，还用于：根据所述用户标识获取所述UE对应的子网的网络名称；通过非接入层NAS消息将所述网络名称发送到所述UE，使得所述UE在用户界面显示所述网络名称。
结合本发明实施例第四方面的第六种实现方式至第十种实现方式中任一 种实现方式，本发明实施例第四方面的第十一种实现方式中，所述第一发送模块还用于，将当前所述UE对应的子网通知到所述C-GW；
所述第一接收模块还用于，接收所述C-GW返回的为所述UE对应的子网分配的域名解析服务器地址，所述域名解析服务器地址标识的域名解析服务器中存储有所述UE对应的子网中网络设备的域名与IP地址的对应关系；
所述第一发送模块还用于，将为所述UE对应的子网分配的域名解析服务器地址发送给所述UE。
结合本发明实施例的第四方面至第二方面的第十一种实现方式中任一种实现方式，本发明实施例第四方面的第十二种实现方式中，所述第一发送模块还用于，将当前所述UE对应的本地网络通知到所述C-GW；
所述第一接收模块还用于，接收所述C-GW返回的为所述UE对应的本地网络分配的域名解析服务器地址，所述域名解析服务器地址标识的域名解析服务器中存储有所述UE对应的本地网络中网络设备的域名与IP地址的对应关系；
所述第一发送模块还用于，将为所述UE对应的本地网络分配的域名解析服务器地址发送给所述UE。
结合本发明实施例的第四方面至第四方面的第十二种实现方式中任一种实现方式，本发明实施例第四方面的第十三种实现方式中，所述第一处理模块为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载，具体用于：控制所述第一接收模块获取C-GW分配的从所述本地网关到所述C-GW的IP地址和隧道终结点标识，并控制所述第一发送模块将所述C-GW分配的从所述本地网关到所述C-GW的IP地址和隧道终结点标识发送至本地网关；控制所述第一接收模块获取eNB分配的从所述本地网关到所述eNB的IP地址和隧道终结点标识，并控制所述第一发送模块将所述eNB分配的从所述本地网关到所述eNB的IP地址和隧道终结点标识发送至本地网关；控制所述第一接收模块获取所述本地网关分配的从该C-GW到该本地网关的IP地址和隧道终结点标识，以及所述本地网关分配的从该eNB到该本地网关的IP地址和隧道终结点标识，并控制所述第一发送模块将所述本地网关分配的从该C-GW到该本地网关的IP地址和隧道终结 点标识发送给C-GW，以及将所述本地网关分配的从该eNB到该本地网关的IP地址和隧道终结点标识发送给eNB。
本发明实施例第五方面提供了一种本地网关，其特征在于，包括：
第二接收模块，用于接收移动功能管理实体MME发送的用户面建立请求，所述用户面建立请求中包括核心网的网关C-GW为UE建立的从所述本地网关到C-GW的用户面承载的信息，其中，所述UE由eNB接入所述核心网，所述本地网关为所述UE对应的本地网关；
第二处理模块，用于根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载。
结合本发明实施例的第五方面，本发明实施例第五方面的第一种实现方式中，所述第二处理模块还用于，确定接收到的UE访问网络的数据是否为访问所述本地网络的数据；
所述本地网关还包括：
第二发送模块，用于当确定所述UE访问网络的数据是访问所述本地网络的数据时，将所述UE访问网络的数据路由到本地网络；当确定所述UE访问网络的数据不是访问所述本地网络的数据时，将所述UE访问网络的数据转发到所述C-GW。
结合本发明实施例第五方面的第一种实现方式，本发明实施例第五方面的第二种实现方式中，所述第二处理模块根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载之后，所述第二发送模块将所述UE访问网络的数据路由到本地网络之前，第二处理模块还用于，根据用户标识确定所述UE对应的子网，所述用户标识用于唯一标识所述UE，所述用户面建立请求中包括所述用户标识；
所述第二发送模块将所述UE访问网络的数据路由到本地网络时，具体用于，将所述UE访问网络的数据路由到所述UE对应的子网中。
结合本发明实施例第五方面的第一种实现方式，本发明实施例第五方面的第三种实现方式中，所述第二处理模块根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载之后，所述第二发送模块将所述UE访问网络的数据路由到本地网络之 前，所述第二接收模块还用于，接收MME发送的路由指令，所述路由指令中包括子网标识和用户标识，所述用户标识用于唯一标识所述UE，所述子网标识用于唯一标识一个子网；
所述第二发送模块将所述UE访问网络的数据路由到本地网络时，具体用于，按照所述路由指令，将所述UE访问网络的数据路由到所述路由指令中子网标识所标识的子网中。
结合本发明实施例第五方面的第一种实现方式至第三种实现方式中任一种实现方式，本发明实施例第五方面的第四种实现方式中，所述第二处理模块确定接收到的UE访问网络的数据是否为访问所述本地网络的数据时，具体用于，当接收到UE访问网络的数据时，根据所述UE访问网络的数据的目的IP地址，确定所述UE访问网络的数据是否为访问所述本地网络的数据，其中，所述本地网关中存储有本地网络的网络设备的IP地址的列表。
结合本发明实施例的第五方面至第五方面的第四种实现方式，本发明实施例第五方面的第五种实现方式中，所述第二接收模块接收移动功能管理实体MME发送的用户面建立请求时，具体用于，获取C-GW为UE的用户面分配的从该本地网关到C-GW的IP地址和隧道终结点标识；
所述第二处理模块根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载时，具体用于：为所述UE的用户面分配从该C-GW到该本地网关的IP地址和隧道终结点标识，以及从该eNB到该本地网关的IP地址和隧道终结点标识；控制所述第二发送模块将所述第二处理模块分配的从该C-GW到该本地网关的IP地址和隧道终结点标识、以及所述第二处理模块分配的从该eNB到该本地网关的IP地址和隧道终结点标识发送给所述MME。
本发明实施例第六方面提供了一种基站eNB，其特征在于，包括：
第三处理模块，用于将UE接入到核心网，所述核心网的网关为C-GW，为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载，所述本地网关为一个本地网络的网关；
第三接收模块，用于接收所述UE访问所述本地网络的数据；
第三发送模块，用于当接收到所述UE访问所述本地网络的数据时，所将 访问所述本地网络的数据发送到所述本地网关。
结合本发明实施例的第六方面，本发明实施例第六方面的第一种实现方式中，所述第三处理模块为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载之前，还用于确定所述UE对应的本地网关或子网；
所述第三发送模块还用于，将确定的所述UE对应的本地网关或子网通知到MME。
结合本发明实施例的第六方面或第六方面的第一种实现方式，本发明实施例第六方面的第二种实现方式中，所述第三处理模块为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载时，具体用于：控制所述第三接收模块获取本地网关给该UE的用户面分配的从该eNB到该本地网关的IP地址和隧道终结点标识；为该UE的用户面分配从该本地网关到该eNB的IP地址和隧道终结点标识，并控制所述第三发送模块将所述第三处理模块分配的从该本地网关到该eNB的IP地址和隧道终结点标识发送给所述MME。
本发明实施例第七方面提供了一种MME，包括：
输入装置，输出装置，处理器和存储器；
通过调用所述存储器存储的操作指令，所述处理器用于执行如下步骤：
指示所述输入装置接收基站eNB发送的用户设备UE的接入请求，其中所述接入请求携带UE的接入信息；
根据所述UE的接入信息确定所述UE对应的第一本地网关，所述第一本地网关为第一本地网络的网关；
为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载。
结合本发明实施例的第七方面，本发明实施例第七方面的第一种实现方式中，所述处理器执行所述根据所述UE的接入信息确定所述UE对应的第一本地网关的步骤之前，还用于执行如下步骤：
获取所述eNB的功能信息；
根据所述eNB的功能信息判断所述eNB是否支持本地网关连接；
当确定所述eNB支持本地网关连接时，触发所述根据所述UE的接入信息确定所述UE对应的第一本地网关的步骤。
结合本发明实施例的第七方面或第七方面的第一种实现方式，本发明实施例第七方面的第二种实现方式中，所述接入信息中包括有所述用户标识，所述用户标识用于唯一标识所述UE，所述处理器执行所述根据所述UE的接入信息确定所述UE对应的第一本地网关的步骤时，具体执行如下步骤：
根据所述用户标识，从用户管理服务器中查找所述UE对应的第一本地网关。
结合本发明实施例第七方面的第二种实现方式，本发明实施例第七方面的第三种实现方式中，所述第一本地网关为所述UE对应的多个本地网关中优先级最高的本地网关。
结合本发明实施例第七方面的第一种实现方式，本发明实施例第七方面的第四种实现方式中，所述eNB的功能信息中还包括所述eNB接入的本地网关的信息；所述接入信息中包括有所述用户标识，所述用户标识用于唯一标识所述UE，所述处理器执行所述根据所述UE的接入信息确定所述UE对应的第一本地网关的步骤时，具体执行如下步骤：
根据所述eNB接入的本地网关的信息、以及所述用户标识，确定所述UE对应的第一本地网关。
结合本发明实施例第七方面的第二种实现方式至第四种实现方式中任一种实现方式，本发明实施例中第七方面的第五种实现方式中，所述处理器执行所述为所述UE建立从所述eNB到所述C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载的步骤之后，还用于执行如下步骤：
当确定所述UE对应的本地网关更新为第三本地网关时，为所述UE建立从所述eNB到所述C-GW之间的包含有所述第三本地网关作为中间节点的用户面承载，所述第三本地网关为第三本地网络的网关。
结合本发明实施例第七方面的第二种实现方式至第四种实现方式中任一种实现方式，本发明实施例中第七方面的第六种实现方式中，所述处理器还用于执行如下步骤：
根据所述用户标识获取所述UE对应的第一子网，所述第一子网位于所述 第一本地网络中；
发送第一路由指令给所述第一本地网关，所述第一路由指令中包括所述第一子网的标识和所述用户标识，所述第一路由指令用于指示将所述UE访问所述第一本地网络的数据路由到所述第一子网中。
结合本发明实施例第七方面的第六种实现方式，本发明实施例第七方面的第七种实现方式中，所述处理器执行所述根据所述用户标识获取所述UE对应的第一子网的步骤时，具体执行如下步骤：
根据所述用户标识确定所述UE对应的用户组；
根据UE的位置信息和/或当前时间，以及所述用户组，确定所述UE对应的第一子网。
结合本发明实施例第七方面的第六种实现方式或第七种实现方式，本发明实施例第七方面的第八种实现方式中，所述处理器执行所述为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载的步骤之后，还用于执行如下步骤：
确定所述UE对应的子网更新为第三子网；
确定第三子网位于第二本地网络中，所述第二本地网络与所述第一本地网络不同；
确定所述第二本地网络的网关为第二本地网关；
为所述UE建立从所述eNB到所述C-GW之间的包含有所述第二本地网关作为中间节点的用户面承载。
结合本发明实施例第七方面的第八种实现方式，本发明第七方面的第九种实现方式中，所述处理器执行所述确定所述第二本地网络的网关为第二本地网关的步骤之后，还用于执行如下步骤：
指示所述输出装置发送第三路由指令给所述第二本地网关，所述第三路由指令中包括所述第三子网的标识和所述用户标识，所述路由指令用于指示将所述UE访问所述第二本地网络的数据路由到所述第三子网中。
结合本发明实施例第七方面的第二种实现方式至第九种实现方式中任一种实现方式，本发明实施例第七方面的第十种实现方式中，所述处理器执行所述为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为 中间节点的用户面承载的步骤之后，还用于执行如下步骤：
根据所述用户标识获取所述UE对应的子网的网络名称；
通过非接入层NAS消息将所述网络名称发送到所述UE，使得所述UE在用户界面显示所述网络名称。
结合本发明实施例第七方面的第六种实现方式至第十种实现方式中任一种实现方式，本发明实施例第七方面的第十一种实现方式中，所述处理器还用于执行如下步骤：
将当前所述UE对应的子网通知到所述C-GW；
接收所述C-GW返回的为所述UE对应的子网分配的域名解析服务器地址，所述域名解析服务器地址标识的域名解析服务器中存储有所述UE对应的子网中网络设备的域名与IP地址的对应关系；
将为所述UE对应的子网分配的域名解析服务器地址发送给所述UE。
结合本发明实施例的第七方面至第七方面的第十一种实现方式中任一种实现方式，本发明实施例第七方面的第十二种实现方式中，所述处理器还用于执行如下步骤：
将当前所述UE对应的本地网络通知到所述C-GW；
接收所述C-GW返回的为所述UE对应的本地网络分配的域名解析服务器地址，所述域名解析服务器地址标识的域名解析服务器中存储有所述UE对应的本地网络中网络设备的域名与IP地址的对应关系；
将为所述UE对应的本地网络分配的域名解析服务器地址发送给所述UE。
结合本发明实施例的第七方面至第七方面的第十二种实现方式中任一种实现方式，本发明实施例第七方面的第十三种实现方式中，所述处理器执行所述为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载的步骤时，具体执行如下步骤：
指示所述输入装置获取C-GW分配的从所述本地网关到所述C-GW的IP地址和隧道终结点标识，并指示所述输出装置将所述C-GW分配的从所述本地网关到所述C-GW的IP地址和隧道终结点标识发送至本地网关；
指示所述输入装置获取eNB分配的从所述本地网关到所述eNB的IP地址和隧道终结点标识，并指示所述输出装置将所述eNB分配的从所述本地网关 到所述eNB的IP地址和隧道终结点标识发送至本地网关；
指示所述输入装置获取所述本地网关分配的从该C-GW到该本地网关的IP地址和隧道终结点标识，以及所述本地网关分配的从该eNB到该本地网关的IP地址和隧道终结点标识，并指示所述输出装置将所述本地网关分配的从该C-GW到该本地网关的IP地址和隧道终结点标识发送给C-GW，以及将所述本地网关分配的从该eNB到该本地网关的IP地址和隧道终结点标识发送给eNB。
本发明实施例第八方面提供了一种本地网关，包括：
输入装置，输出装置，处理器和存储器；
通过调用所述存储器存储的操作指令，所述处理器用于执行如下步骤：
指示所述输入装置接收移动功能管理实体MME发送的用户面建立请求，所述用户面建立请求中包括核心网的网关C-GW为UE建立的从所述本地网关到C-GW的用户面承载的信息，其中，所述UE由eNB接入所述核心网，所述本地网关为所述UE对应的本地网关；
根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载。
结合本发明实施例的第八方面，本发明实施例第八方面的第一种实现方式中，所述处理器还用于执行如下步骤：
确定接收到的UE访问网络的数据是否为访问所述本地网络的数据；
当确定所述UE访问网络的数据是访问所述本地网络的数据时，指示所述输出装置将所述UE访问网络的数据路由到本地网络；
当确定所述UE访问网络的数据不是访问所述本地网络的数据时，指示所述输出装置将所述UE访问网络的数据转发到所述C-GW。
结合本发明实施例第八方面的第一种实现方式，本发明实施例第八方面的第二种实现方式中，所述处理器执行所述根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载的步骤之后，执行所述将所述UE访问网络的数据路由到本地网络的步骤之前，还用于执行如下步骤：
根据用户标识确定所述UE对应的子网，所述用户标识用于唯一标识所述 UE，所述用户面建立请求中包括所述用户标识；
所述处理器执行所述将所述UE访问网络的数据路由到本地网络的步骤时，具体执行如下步骤：
将所述UE访问网络的数据路由到所述UE对应的子网中。
结合本发明实施例第八方面的第一种实现方式，本发明实施例第八方面的第三种实现方式中，所述处理器执行所述根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载的步骤之后，执行所述将所述UE访问网络的数据路由到本地网络的步骤之前，还用于执行如下步骤：
指示所述输入装置接收MME发送的路由指令，所述路由指令中包括子网标识和用户标识，所述用户标识用于唯一标识所述UE，所述子网标识用于唯一标识一个子网；
所述处理器执行所述将所述UE访问网络的数据路由到本地网络的步骤时，具体执行如下步骤：
按照所述路由指令，将所述UE访问网络的数据路由到所述路由指令中子网标识所标识的子网中。
结合本发明实施例第八方面的第一种实现方式至第三种实现方式中任一种实现方式，本发明实施例第八方面的第四种实现方式中，所述处理器执行所述确定接收到的UE访问网络的数据是否为访问所述本地网络的数据的步骤时，具体执行如下步骤：
当接收到UE访问网络的数据时，根据所述UE访问网络的数据的目的IP地址，确定所述UE访问网络的数据是否为访问所述本地网络的数据，其中，所述存储器中存储有本地网络的网络设备的IP地址的列表。
结合本发明实施例的第八方面至第八方面的第四种实现方式，本发明实施例第八方面的第五种实现方式中，所述处理器执行所述指示所述输入装置接收移动功能管理实体MME发送的用户面建立请求的步骤时，具体执行如下步骤：
指示所述输入装置获取C-GW为UE的用户面分配的从该本地网关到C-GW的IP地址和隧道终结点标识；
所述处理器执行所述根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载的步骤时，具体执行如下步骤：
为所述UE的用户面分配从该C-GW到该本地网关的IP地址和隧道终结点标识，以及从该eNB到该本地网关的IP地址和隧道终结点标识；
指示所述输出装置将分配的所述从该C-GW到该本地网关的IP地址和隧道终结点标识、以及分配的所述从该eNB到该本地网关的IP地址和隧道终结点标识发送给所述MME。
本发明实施例第九方面提供了一种基站eNB，包括：
输入装置，输出装置，处理器，存储器；
通过调用所述存储器存储的操作指令，所述处理器用于执行如下操作：
将UE接入到核心网，所述核心网的网关为C-GW；
为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载，所述本地网关为一个本地网络的网关；
当所述输入装置接收到所述UE访问所述本地网络的数据时，指示所述输出装置将访问所述本地网络的数据发送到所述本地网关。
结合本发明实施例的第九方面，本发明实施例第九方面的第一种实现方式中，所述处理器执行所述为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载的步骤之前，所述处理器还用于执行如下步骤：
确定所述UE对应的本地网关或子网；
指示所述输出装置将确定的所述UE对应的本地网关或子网通知到MME。
结合本发明实施例的第九方面或第九方面的第一种实现方式，本发明实施例第九方面的第二种实现方式中，所述处理器执行所述为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载的步骤时，具体执行如下步骤：
指示所述输入装置获取本地网关给该UE的用户面分配的从该eNB到该本地网关的IP地址和隧道终结点标识；
为该UE的用户面分配从该本地网关到该eNB的IP地址和隧道终结点标 识；
指示所述输出装置将分配的所述从该本地网关到该eNB的IP地址和隧道终结点标识发送给所述MME。
本发明实施例第十方面提供了一种接入本地网络的系统，包括：
本发明实施例的第四方面至第四方面的第十三种实现方式中任一种实现方式或本发明实施例的第七方面至第七方面的第十三种实现方式中任一种实现方式提供的MME，本发明实施例的第五方面至第五方面的第五种实现方式中任一种实现方式或本发明实施例的第八方面至第八方面的第五种实现方式中任一种实现方式提供的本地网关，本发明实施例的第六方面至第六方面的第二种实现方式中任一种实现方式或本发明实施例的第九方面至第九方面的第二种实现方式中任一种实现方式提供的基站，以及UE。
结合本发明实施例的第十方面，本发明实施例第十方面的第一种实现方式中，所述系统还包括：
用户管理服务器，用于存储所述UE与子网和/或本地网关的对应关系；
域名解析服务器，用于存储UE对应的子网中网络设备的域名与IP地址的对应关系，将访问UE对应的子网中业务服务器的域名转换为所述业务服务器的IP地址。
从以上技术方案可以看出，本发明实施例具有以下优点：本发明实施例中，核心网的移动功能管理实体MME根据基站eNB发送的用户设备UE的接入请求中携带的UE的接入信息，能确定该UE对应的第一本地网关，该第一本地网关为第一本地网络的网关，并为该UE建立从该eNB到核心网的网关C-GW之间的包含有该第一本地网关作为中间节点的用户面承载，这样，由于该用户面承载以该第一本地网关作为中间节点，则eNB与核心网的网关C-GW和第一本地网络的网关之间都建立了数据连接，UE通过该eNB，既能接入运营商网络，同时也能接入该第一本地网络，实现了使用户能同时接入运营商网络和本地网络的目的。
附图说明
图1为本发明实施例中网络系统一个构架示意图；
图2为本发明实施例中接入本地网络的方法一个信令交互示意图；
图3为本发明实施例中接入本地网络的方法一个流程示意图；
图4为本发明实施例中接入本地网络的方法另一个流程示意图；
图5为本发明实施例中接入本地网络的方法另一个流程示意图；
图6为本发明实施例中接入本地网络的方法另一个流程示意图；
图7为本发明实施例中接入本地网络的方法另一个流程示意图；
图8为本发明实施例中接入本地网络的方法另一个流程示意图；
图9为本发明实施例中MME一个结构示意图；
图10为本发明实施例中本地网关一个结构示意图；
图11为本发明实施例中基站一个结构示意图；
图12为本发明实施例中网络设备一个结构示意图；
图13为本发明实施例中接入本地网络的系统一个结构示意图。
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，本领域技术人员在没有做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。
本发明实施例提供了接入本地网络的方法和相关设备，用于使用户能同时使用运营商网络和本地网络。
需要说明的是，本发明实施例中接入本地网络的方法应用于网络系统，如图1所示，为本发明实施例中网络系统一个构架示意图，用户接入运营商网络需要为用户设备UE建立从基站eNB到核心网网关C-GW的用户面承载，从而使UE发送的信息通过该eNB和C-GW发送到核心网，因此，该网络系统涉及的网络设备有UE，eNB和核心网，其中核心网包括核心网的网关C-GW和核心网的移动功能管理实体MME。
此外，该网络系统中还可能存在有用于存储必要用户信息以及该用户信息与其他信息对应关系的用户管理服务器(可以配置在CSG server上或者其他设备上)，还可以存在有用于进行域名解析的域名解析服务器DNS server，通 过该C-GW和DNS server，UE发送的消息可以访问公用数据网PDN Internet。为了配置该用户管理服务器以及DNS server等服务器，该网络系统还可以包括有一个开放平台Open Platform，在软件业和网络中，开放平台是指软件系统通过公开其应用程序编程接口(API)或函数(function)来使外部的程序可以增加该软件系统的功能或使用该软件系统的资源，而不需要更改该软件系统的源代码。
进一步的，本发明实施例中，使用户能同时接入运营商网络和本地网络，需要使UE的信息能发送到本地网络，因此，该网络系统中还包括本地网络，其中本地网络包括本地网络的本地网关L-GW，以及该本地网络中可能存在的本地网络中的子网，如图1中EN1，EN2，EN3所示。
可以理解的是，本发明实施例中，在通信过程中，MME、eNB和本地网关都可以得到唯一标识一个UE的用户标识，并可以根据该用户标识查找对应关系得到需要的信息(例如对应的本地网关，对应的用户组，对应的子网等等)。例如，该用户标识可以为MSISDN，临时标识，或者其他任何可以用于标示用户的标识，其中，MSISDN是指主叫用户为呼叫全球移动通信系统公众陆地移动网(Global System For Mobile Communications Public Land Mobile Network，GSM PLMN)中的一个移动用户所需拨的号码，作用同于公共交换电话网络(Public Switched Telephone Network，PSTN)号码，是在公共电话网交换网络编号计划中，唯一能识别的号码。除此以外，在实际应用中，也可以采用其他的该MME，eNB和本地网关都能得到且能唯一标识一个UE的编码作为用户标识，此处不作限定。
请参阅图2，结合图1所示的网络系统，下面从各网络设备之间信令交互的角度，对本发明实施例中接入本地网络的方法进行描述：
201、UE接入eNB；
202、eNB通过初始UE信息(initial UE Message)将UE的接入信息发送给MME；
可以理解的是，该UE的接入信息由UE通过该eNB发送的接入请求携带。
203、MME得到该接入信息后，确定该UE对应的本地网关；
可以理解的是，该接入信息中包含有用于唯一标识该UE的用户标识，例 如MSISDN，用户临时标识，或者其他任何可以用于标示用户的标识等。MME或用户管理服务器(例如：CSG server或者其他设备)中存储有用户标识与本地网关的对应关系。具体的，MME可以通过以下方式确定本地网关：
1，MME根据接入信息中的用户标识查找该对应关系，得到与该UE对应的本地网关。
2，MME可以通过获取eNB的功能信息获知eNB所连接的本地网关(一个或多个)，MME可以根据接入信息中的用户标识以及该eNB接入的本地网关的信息，得到该UE对应的本地网关。具体的，该eNB的功能信息可以从eNB发送给MME，也可以是MME通过其他方式获得，比如通过DNS查询eNB，本地网标识，本地网关标识等方法从数据库获得，此处不作限定。
可选的，如果eNB连接一个本地网关，则MME可以根据接入信息中的用户标识以及该eNB接入的本地网关的信息，得到该UE对应的本地网关的具体方式可以如下：若该MME根据该用户标识获知用户支持本地网络，该MME可以确定eNB连接该本地网关为该UE对应的本地网关。
可选的，如果eNB连接多个本地网关，则MME可以根据接入信息中的用户标识以及该eNB接入的本地网关的信息，得到该UE对应的本地网关的具体方式可以如下：若该MME根据该用户标识查找对应关系得到两个本地网关，其中一个是该eNB接入的本地网关，该MME可以确定该本地网关为该UE对应的本地网关。进一步的，
3、可以由eNB通过根据该用户标识查找对应关系和/或接入的本地网关的信息，得到与该UE对应的本地网关，再发送给该MME，此处不作限定。
204、MME、eNB以及该UE对应的本地网关，为该UE建立从eNB到C-GW之间的包含该本地网关作为中间节点的用户面承载；
可以理解的是，包含该本地网关作为中间节点的用户面承载，是指：UE与C-GW之间建立从C-GW访问核心网及Internet业务的用户面数据通道(例如可以是PDN数据通道，也可以是其他数据通道，此处不作限定)，将本地网关作为中间节点，eNB一侧，eNB与本地网关连接，C-GW一侧，本地网关与C-GW连接，用户设备访问核心网及Internet业务的数据流由L-GW在eNB和C-GW之间转交，用户设备访问本地网络业务的数据由L-GW进行本地路由， 到达本地网络，具体的流程可以参考后续实施例中的描述。
步骤201至步骤204中，通过为UE建立从eNB到C-GW之间的包含本地网关作中间节点的用户面承载，使得用户能同时接入运营商网络和本地网络。
可选的，作为本发明实施例中接入本地网络的方法另一个实施例还可以进一步包括：步骤205至步骤206，通过路由UE访问本地网络的数据到该UE对应的特定的本地网络中的子网，使得数据访问过程更精细化，能更好的进行网络访问的权限控制，提升了网络系统的安全性。具体描述如下：
205、本地网关获取所述UE对应的子网标识；
其中，该子网标识用于标识该本地网络中的子网，其中该子网可以是本地网络多个子网中的一个(例如优先级最高的子网)，也可以是本地网络的唯一子网(即该子网可以就是本地网络，该子网标识就是本地网络标识)，此处不作限定。
可选的，从eNB到C-GW之间的包含该UE对应的本地网关作为中间节点的用户面承载建立完成后，该本地网关可以得到唯一标识该UE的用户标识。用户管理服务器或用户签约信息中可以存储有用户标识与子网标识的对应关系。该本地网关可以根据唯一标识该UE的用户标识，查找该对应关系，得到该UE对应的子网标识；在实际应用中，也可以由MME根据唯一标识该UE的用户标识，先查找该对应关系得到该UE对应的子网标识，再将该子网标识发送给该本地网关，此处不作限定。
可选的，在实际应用中，存储的对应关系也可以包括用户标识与用户组之间的对应关系，以及用户组与子网标识之间的对应关系，确定UE对应的子网时，MME可以先根据用户标识与用户组之间的对应关系确定用户组，再根据用户组与子网标识之间的对应关系，确定该UE对应的子网标识(例如，上述获得的eNB的功能信息还可以包括该eNB连接的本地网关L-GW所支持的本地网络中子网的信息，则MME可以根据用户标识确定用户组，再根据用户组以及本地网关L-GW所支持的子网信息确定该UE对应的子网标识)。可选的，也可以不存在该子网标识，将该用户组与子网关联，将该用户组的标识作为子网的标识，此处不作限定。
206、本地网关将该UE访问本地网络的数据路由到该子网标识所标识的子网中；
可以理解的是，在将UE访问本地网络的数据路由到子网标识所标识的子网中之前，该本地网关在接收到UE访问网络的数据时(承载该数据的数据包中携带有该数据的源IP地址和目的IP地址)，可以根据该UE访问网络的数据的目的IP地址，确定该UE访问网络的数据是否为访问该本地网络的数据，在该本地网关中存储有该UE对应的子网中网络设备的IP地址的列表，当确定不是访问本地网络的数据时，该本地网关将该UE访问网络的数据转发到该C-GW；当确定是访问本地网络的数据时，该本地网关才将该UE访问本地网络的数据路由该子网标识所标识的子网中。
需要说明的时，本地网关得到UE对应的子网中网络设备的IP地址的列表的方式有很多种，可选的，可以由开放平台进行配置；可选的，也可以由MME从域名解析服务器中读取该UE对应的子网中网络设备的IP地址的列表后发送给该本地网关，此处不作限定。
可选的，作为本发明实施例中接入本地网络的方法另一个实施例还可以进一步包括：步骤207至步骤209，使得UE可以通过直接访问本地网络中子网内业务服务器的域名，达到向子网内业务服务器发送业务请求的目的。在上述实施例中，建立完成了从eNB到C-GW之间的包含有该UE对应的本地网关作为中间节点的用户面承载，且确定了该UE在该本地网关作为网关的本地网络中对应的子网，此时，UE可以同时访问本地网络与运营商网络。在实际应用中，UE可能直接通过IP地址访问该子网中的业务服务器，也可能通过域名访问该子网中的业务服务器，则此时需要对该域名进行域名解析，以得到该域名对应的子网中的业务服务器的IP地址。上述实施例的步骤204之后，步骤206之前，还可以进一步包括：步骤207至209，通过域名来访问子网内的业务服务器，具体描述如下：
207、UE向DNS server发送域名解析请求，其中包括该子网内业务服务器域名；
需要说明的是，在步骤207之前的任一个时机，MME可以根据唯一标识 该UE的用户标识，查找MME、用户管理服务器或用户签约信息中存储的用户标识与子网标识的对应关系，得到该UE对应的子网的标识，然后将该UE对应的子网的标识发送到C-GW，再将C-GW返回的为该UE对应的子网分配的域名解析服务器DNS server的地址转发给该UE，则该UE可以确定该DNS server的地址。
则UE得到该DNS server的地址后，可以向DNS server发送域名解析请求，在该域名解析请求中包括请求访问的该子网内业务服务器域名。
208、DNS server根据子网内业务服务器域名向UE返回子网内业务服务器IP地址；
209、UE向该业务服务器IP地址发送业务请求；
可以理解的是，DNS server中子网内业务服务器域名和业务服务器在子网中的IP地址的对应关系可以通过开放平台配置。
可选的，作为本发明实施例中接入本地网络的方法另一个实施例还可以进一步包括：步骤210至步骤212，通过给UE发送子网的网络名称，可以使得该网络名称可以在UE的用户界面显示，便于用户更直观的了解目前访问的子网是哪一个，提升了人机交互性能。具体描述如下：
210、MME获取该UE对应的子网的网络名称；
可以理解的是，MME、用户管理服务器或用户签约信息中还可以存储有用户标识与子网的网络名称之间的对应关系、或子网与子网的网络名称之间的对应关系，MME可以根据该用户标识、或该UE对应的子网，查找该对应关系，得到该UE对应的子网的网络名称。
211、MME通过NAS消息将该网络名称发送到UE；
212、UE接收到MME通过NAS消息发送的该网络名称后，将该网络名称在UE的用户界面显示。
可以理解的是，在201至204之后，步骤205和206、步骤207至209、步骤210至212均可以相互组合或根据实际应用情况选择是否执行，此处不作限定。
上面从网络系统中各设备的信令交互的角度，对本发明实施例中接入本地网络的方法进行了描述，下面分别从各网络设备的角度，对本发明实施例中接 入本地网络的方法进行描述：
一、从MME的角度：
请参阅图3，本发明实施例中接入本地网络的方法一个实施例包括：
301、MME接收基站eNB发送的用户设备UE的接入请求，所述接入请求携带UE的接入信息；
其中，所述MME为所述核心网的移动功能管理实体，所述核心网的网关为C-GW。
本步骤中，UE先接入eNB，再通过该eNB接入核心网，发送接入核心网的接入请求给MME，该接入请求中携带有该UE的接入信息，该接入信息中包括有唯一标识该UE的用户标识。
302、MME根据该UE的接入信息确定所述UE对应的第一本地网关；
其中，所述第一本地网关为第一本地网络的网关；
可以理解的是，该接入信息中包含有用于唯一标识该UE的用户标识。MME或用户管理服务器中存储有用户标识与本地网关的对应关系。MME可以根据接入信息中的该用户标识查找该对应关系，得到与该UE对应的第一本地网关；在实际应用中，由于UE通过eNB接入，也可以由eNB通过根据该用户标识查找对应关系，得到与该UE对应的第一本地网关，再发送给该MME，此处不作限定。
可选的，在实际应用中，MME可以获取eNB的功能信息，该功能信息中可以包括eNB接入的本地网关的信息，该MME也可以根据该eNB接入的本地网关的信息，以及查找到的该用户标识对应的本地网关，确定该UE对应的第一本地网关，此处不作限定。该eNB的功能信息还可以包括该eNB连接的本地网关L-GW所支持的本地网络中子网的信息，可以理解的是，该eNB的功能信息可以从eNB发送给MME，也可以是MME通过其他方式获得，比如通过DNS查询eNB，本地网标识，本地网关标识等方法从数据库获得，此处不作限定。
303、MME为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载。
MME确定该UE对应的第一本地网关后，为该UE建立从eNB到C-GW 之间的包含该本地网关作为中间节点的用户面承载。
本发明实施例中，核心网的移动功能管理实体MME根据基站eNB发送的用户设备UE的接入请求中携带的UE的接入信息，能确定该UE对应的第一本地网关，该第一本地网关为第一本地网络的网关，并为该UE建立从该eNB到核心网的网关C-GW之间的包含有该第一本地网关作为中间节点的用户面承载，这样，由于该用户面承载以该第一本地网关作为中间节点，则eNB与核心网的网关C-GW和第一本地网络的网关之间都建立了数据连接，UE通过该eNB，既能接入运营商网络，同时也能接入该第一本地网络，实现了使用户能同时接入运营商网络和本地网络的目的。
上面实施例中，MME确定所述UE对应的第一本地网关，在实际应用中，MME确定第一本地网关的方式有多种，可以直接通过该UE对应的本地网关来确定，也可以通过该UE对应的子网来确定，并且UE对应的本地网关或子网的数目可以只有一个，也可以有多个，此处不作限定，下面以这几种情况为例，分别对本发明实施例中接入本地网络的方法进行具体描述：
1、UE直接对应本地网关。
请参阅图4，本发明实施例中本地网络接入的方法另一个实施例包括：
401、MME接收基站eNB发送的用户设备UE的接入请求，所述接入请求携带UE的接入信息；
其中，所述MME为所述核心网的移动功能管理实体，所述核心网的网关为C-GW。
本步骤中，UE先接入eNB，再通过该eNB接入核心网，发送接入核心网的接入信息给MME，该接入请求中携带有该UE的接入信息，该接入信息中包括有唯一标识该UE的用户标识。
402、所述MME确定所述eNB是否支持本地网关连接；
该接入信息中还可以包括有该eNB的标识。可以理解的是，MME或核心网中可以存储有各eNB的功能信息，各eNB的功能信息中记录有该eNB支持的功能，MME可以通过该eNB的标识查询各eNB具有的功能。本步骤中，MME可以通过查询该eNB的功能，判断该eNB是否支持本地网关连接。
该eNB的功能信息还可以包括该eNB连接的本地网关L-GW所支持的本 地网络中子网的信息，可以理解的是，该eNB的功能信息可以从eNB发送给MME，也可以是MME通过其他方式获得，比如通过DNS查询eNB，本地网标识，本地网关标识等方法从数据库获得，此处不作限定。
在实际应用中，MME可以先判断接入UE的eNB是否支持本地网关连接，当确定其支持本地网关连接时，才触发步骤403，当确定其不支持本地网关连接时，可以直接将该UE接入核心网，而不需要执行本实施例后续步骤。
403、当确定所述eNB支持本地网关连接时，所述MME根据用户标识从用户管理服务器中查找所述UE对应的多个本地网关中优先级最高的第一本地网关，其中，多个本地网关具有不同的优先级，所述接入信息中包括所述用户标识，所述用户标识用于唯一标识所述UE；
本步骤中，用户管理服务器中存储有UE与本地网关的对应关系，具体的，可以是唯一标识该UE的用户标识与本地网关的对应关系，一个UE可能对应有多个本地网关，且各本地网关之间具有不同的优先级。当确定eNB支持本地网关连接时，该MME从用户管理服务器查找该UE对应的多个本地网关中优先级最高的本地网关，作为第一本地网关；可选的，在实际应用中，一个UE对应多个本地网关时，也可以根据负载均衡的计算，选择计算结果最优的本地网关作为第一本地网关；可选的，在实际应用中，MME可以获取eNB的功能信息，该功能信息中可以包括eNB接入的本地网关的信息，该MME也可以根据该eNB接入的本地网关的信息，以及查找到的该用户标识对应的本地网关，确定该UE对应的第一本地网关，还可以有其他的UE对应的多个本地网关中确定该UE当前对应的本地网关的方式，此处不作限定。
可以理解的是，在实际应用中，也可能有UE只对应唯一一个本地网关的情况，则此时该MME将该UE对应的这一个本地网关作为第一本地网关。
404、所述MME为所述UE建立从所述eNB到所述C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载；
MME确定UE对应的第一本地网关后，为该UE建立从eNB到所述C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载；
可以理解的是，包含该第一本地网关作为中间节点的用户面承载，是指：UE与C-GW之间建立从C-GW访问核心网及Internet业务的用户面的数据通 道(例如可以是PDN数据通道，也可以是其他数据通道，此处不作限定)，将第一本地网关作为中间节点，eNB一侧，eNB与第一本地网关连接，C-GW一侧，第一本地网关与C-GW连接，用户设备访问核心网及Internet业务的数据流由第一本地网关在eNB和C-GW之间转交，用户设备访问第一本地网络的业务的数据由第一本地网关进行本地路由，到达第一本地网络。
405、所述MME获取所述UE对应的第一子网；
MME建立以第一本地网关作为中间节点的从eNB到C-GW之间的用户面承载后，可以获取该UE对应的第一子网。
可以理解的是，UE与子网的对应关系可以存储在用户管理服务器中，也可以存储在用户的签约数据中，还可以存在其他位置，例如本地网关中，此处不作限定。
可以理解的是，在实际应用中，MME获取UE对应的第一子网的方式有很多种，其中，可选的，MME可以先确定该UE对应的用户组，然后再根据UE的位置信息和/或当前时间，以及该用户组，确定该UE对应的第一子网。该UE的位置信息可以为由UE上报或MME获取的UE当前的位置信息，也可以为eNB的标识，此处不作限定。
例如，若UE属于用户组1，可以设置该用户组1在中午12点前对应子网1，该用户组1在中午12点后对应子网2，还可以有用户组，UE的位置信息、当前时间之间其他的组合方式与子网的对应关系，此处不作限定。
406、所述MME发送第一路由指令给所述第一本地网关，所述第一路由指令中包括所述第一子网的标识和所述UE的标识，所述第一路由指令用于指示将所述UE访问所述第一本地网络的数据路由到所述第一子网中；
该MME得到用户对应的第一子网标识后，发送第一路由指令给该第一本地网关，该第一路由指令中包括所述第一子网的标识和所述UE的标识，该第一路由指令用于指示将所述UE访问所述第一本地网络的数据路由到所述第一子网中。
步骤405和406中，MME可以获取该UE对应的第一子网的标识然后发送第一路由指令给本地网关，在实际应用中，获取UE对应的子网除了可以由该MME完成，也可以由本地网关来来完成，则此时不再需要MME获取子网， 此处不作限定。因此，可以理解的是，本实施例中，在不同的应用场景下，步骤405与406可以存在也可以不存在，此处不作限定。
可选的，在实际应用中，MME还可以发送UE对应的子网的标识到C-GW，然后接收该C-GW返回的为该UE对应的子网分配的域名解析服务器地址，该域名解析服务器地址标识的域名解析服务器中存储有该UE对应的子网中网络设备的域名与IP地址的对应关系。
可选的，在实际应用中，MME还可以发送UE对应的本地网络的标识到C-GW，然后接收该C-GW返回的为该UE对应的本地网络分配的域名解析服务器地址，该域名解析服务器地址标识的域名解析服务器中存储有该UE对应的本地网络中网络设备的域名与IP地址的对应关系。
407、当所述MME确定优先级最高的本地网关更新为第三本地网关时，所述MME为所述UE建立从所述eNB到所述C-GW之间的包含有所述第三本地网关作为中间节点的用户面承载，所述第三本地网关与所述第一本地网关不同；
将第一本地网关作为用户面承载的中间节点后，用户也可以根据实际需求对该UE对应的本地网关对应的本地网络进行修改，例如，修改该UE对应的多个本地网关中各本地网关的优先级，使得优先级最高的本地网关更新为其他的本地网关，例如第三本地网关，该第三本地网关为第三本地网络的网关，而MME能通过监测本地网关优先级变化或接收用户管理服务器发送的消息，得到UE对应的本地网关的优先级的更新。当该MME确定优先级最高的本地网关更新为第三本地网关后，该MME为该UE建立从该eNB到C-GW之间的包含有该第三本地网关作为中间节点的用户面承载，可以理解的是，同时，该MME还可以将以第一本地网关作为中间节点的用户面承载删除，该第三本地网关与该第一本地网关不同。
需要说明的是，建立以第三本地网关作为中间节点的用户面承载后，也可以再确定UE在第三本地网络中对应的子网标识，此处不作限定。
可以理解的是，根据实际应用情况，在不同的应用场景中，该步骤404可以存在也可以不存在，此处不作限定。
408、所述MME获取所述UE对应的子网的网络名称；
409、所述MME通过非接入层NAS消息将所述网络名称发送到所述UE，使得所述UE在用户界面显示所述网络名称。
可以理解的是，根据实际应用情况，在不同的应用场景中，步骤408和409可以存在也可以不存在，此处不作限定。
本发明实施例中，MME能确定与UE对应的优先级最高的本地网关，建立与该本地网关作为中间节点的用户面承载，实现对该运营商网络和以该本地网关作为网关的本地网络的同时访问，进一步的，能确定UE在该本地网络中对应的子网标识，发送路由指令给该本地网关，使该本地网关将UE访问该本地网络的数据都路由到该子网中，实现了网络访问权限的精确控制。
2、UE对应子网，通过该子网确定该UE对应的本地网关。
请参阅图5，本发明实施例中本地网络接入的方法另一个实施例包括：
501、MME接收用户设备UE通过基站eNB发送的接入核心网的接入请求，所述接入请求携带UE的接入信息；
502、所述MME判断所述eNB是否支持本地网关连接；
步骤501和502与步骤401和402类似，此处不作赘述。
503、当确定所述eNB支持本地网关连接时，所述MME根据用户标识确定所述UE对应的第二子网；
本实施例中，UE与子网存在对应关系，且一个UE可能与多个子网存在对应关系，多个子网之间具有不同的优先级。
可以理解的是，MME或用户管理服务器中存储有UE与子网的对应关系，具体的，可以是唯一标识该UE的用户标识与子网的对应关系。根据该对应关系以及接入信息中唯一标识该UE的用户标识，该MME可以确定该UE对应的第二子网。
本步骤中，MME能确定该UE对应的第二子网，该第二子网为当前该UE对应的多个子网中优先级最高的子网或唯一对应的子网。
可以理解的是，MME可以通过自己监测或查找用户管理服务器或用户签约数据，确定该UE对应的第二子网，也可以通过接收用户管理服务器或eNB发送有该UE对应的第二子网的消息，确定该UE对应的第二子网，此处不作限定。
可选的，MME先可以获取UE对应的用户组，然后再根据UE的位置信息和/或当前时间，以及该用户组，确定该UE对应的第二子网。该UE的位置信息可以为由UE上报或MME获取的UE当前的位置信息，也可以为eNB的标识，此处不作限定。
例如，若UE属于用户组3，可以设置该用户组3在UE处于位置1时对应子网3，当UE处于位置2时对应子网4，还可以有用户组、UE的位置信息、当前时间之间其他的组合方式与子网的对应关系，此处不作限定。
504、所述MME确定第二子网位于所述第一本地网络中；
MME确定该UE对应的第二子网后，确定该第二子网位于该第一本地网络中。
505、所述MME确定所述第一本地网络的网关为第一本地网关；
MME确定UE对应的第二子网位于第一本地网络后，确定该第一本地网络的网关为第一本地网关。
506、所述MME为所述UE建立从所述eNB到所述C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载；
与步骤404类似，此处不作赘述。
507、所述MME发送第二路由指令给所述第一本地网关，所述第二路由指令中包括所述第二子网的标识和所述UE的标识，所述路由指令用于指示将所述UE访问所述第一本地网络的数据路由到所述第二子网中。
MME为UE建立以该第一本地网关作为中间节点的用户面承载后，发送第二路由指令给该第一本地网关，该第二路由指令中包括该UE对应的第二子网的标识和该UE的标识，该路由指令用于指示将该UE访问该第一本地网络的数据路由到该第二子网标识唯一标识的第二子网中。
可选的，在实际应用中，MME还可以发送UE对应的子网的标识到C-GW，然后接收该C-GW返回的为该UE对应的子网分配的域名解析服务器地址，该域名解析服务器地址标识的域名解析服务器中存储有该UE对应的子网中网络设备的域名与IP地址的对应关系。
可选的，在实际应用中，MME还可以发送UE对应的本地网络的标识到C-GW，然后接收该C-GW返回的为该UE对应的本地网络分配的域名解析服 务器地址，该域名解析服务器地址标识的域名解析服务器中存储有该UE对应的本地网络中网络设备的域名与IP地址的对应关系。
508、所述MME确定所述UE对应的子网更新为第三子网；
在实际应用中，根据需要，用户能对UE对应的子网或子网的优先级进行修改，使得该UE唯一对应的或优先级最高的子网更新为其他的子网，例如第三子网，该第三子网与第二子网不同，且位于不同的本地网络。而MME能通过监测UE对应的子网(子网的优先级)或接收用户管理服务器发送的消息，得到UE对应的子网的更新。本步骤中，MME可以确定该UE对应的子网更新为第三子网，该第三子网为当前该UE对应的多个子网中优先级最高的子网或唯一对应的子网。
可以理解的是，MME可以通过自己监测或查找用户管理服务器或用户签约数据，确定该UE对应的子网更新为第三子网，也可以通过接收用户管理服务器或eNB发送有该UE对应的子网标识更新为第三子网的消息，确定该UE对应的子网标识更新为第三子网，还可以是由于UE对应的用户组和UE的位置信息和/或当前时间的组合对应到了该第三子网，此处不作限定。
509、所述MME确定第三子网位于第二本地网络中，所述第二本地网络与所述第一本地网络不同；
MME确定UE对应的子网更新为第三子网后，该第三子网位于第二本地网络中，该第二本地网络与第一本地网络不同。
需要理解的是，本步骤中，更新的UE对应的子网位于的第二本地网络与第一本地网络不同，在实际应用中，有些场景下，更新的UE对应的子网位于的第二本地网络也可以与该第一本地网络为同一个本地网络，此处不作限定。
510、所述MME确定所述第二本地网络的网关为第二本地网关；
MME确定更新后的UE对应的第三子网位于第二本地网络后，确定该第二本地网络的网关为第二本地网关。
511、所述MME为所述UE建立从所述eNB到所述C-GW之间的包含有所述第二本地网关作为中间节点的用户面承载，所述第二本地网关与所述第一本地网关不同；
可以理解的是，包含该第二本地网关作为中间节点的用户面承载，是指： UE与C-GW之间建立从C-GW访问核心网及Internet业务的用户面的数据通道(例如可以是PDN数据通道，也可以是其他数据通道，此处不作限定)，将第二本地网关作为中间节点，eNB一侧，eNB与第二本地网关连接，C-GW一侧，第二本地网关与C-GW连接，用户设备访问核心网及Internet业务的数据流由第二本地网关在eNB和C-GW之间转交，用户设备访问第二本地网络的业务的数据由第二本地网关进行本地路由，到达第二本地网络。
512、所述MME发送第三路由指令给所述第二本地网关，所述第三路由指令中包括所述第三子网的标识和所述UE的标识，所述路由指令用于指示将所述UE访问所述第二本地网络的数据路由到所述第三子网中；
可以理解的是，根据实际应用场景的不同，步骤508至512可以存在也可以不存在，此处不作限定。
513、所述MME获取所述UE对应的子网的网络名称；
514、所述MME通过非接入层NAS消息将所述网络名称发送到所述UE，使得所述UE在用户界面显示所述网络名称。
可以理解的是，根据实际应用情况，在不同的应用场景中，步骤513和514可以存在也可以不存在，此处不作限定。
本发明实施例中，MME能确定与UE对应的优先级最高的或唯一对应的子网，得到该子网位于的本地网络，再确定该本地网络的本地网关，为该UE以该本地网关为中间节点建立用户面承载，实现了对运营商网络以及该本地网络的同时访问，且发送路由指令到该本地网关，指示该本地网关将该UE访问该本地网络的数据路由到该UE对应的子网中，实现了网络访问权限的精确控制。
二、从本地网关的角度：
本发明实施例中接入本地网络的方法一个实施例包括：
本地网关接收MME发送的用户面建立请求，所述用户面建立请求中包括所述MME为UE建立的从所述本地网关到C-GW的用户面承载的信息，所述MME为核心网的移动功能管理实体，所述核心网的网关为C-GW，所述UE由eNB接入所述核心网，所述本地网关为所述UE对应的本地网关；
所述本地网关根据所述用户面建立请求为所述UE建立从所述eNB到所 述C-GW之间的包含有所述本地网关作为中间节点的用户面承载。
本实施例中，本地网关能为UE建立以自己作为中间节点的用户面承载，实现UE对运营商网络和以自己作为网关的本地网络的访问。
在实际应用中，本地网络中还可以有多个不同的子网，每个子网由不同的子网标识唯一标识，UE可以具有其中的部分子网的访问权限，即与其中的某些或某个子网对应，该对应关系可以由本地网关自己查询确定，也可以由MME发送的路由指令确定，此处不作限定。下面分别进行描述：
1、本地网关自己查询得到。
请参阅图6，本发明实施例中接入本地网络的方法另一个实施例包括：
601、本地网关接收MME发送的用户面建立请求；
其中，所述用户面建立请求中包括所述MME为UE建立的从所述本地网关到C-GW的用户面承载的信息，所述MME为核心网的移动功能管理实体，所述核心网的网关为C-GW，所述UE由eNB接入所述核心网，所述本地网关为所述UE对应的本地网关；
602、所述本地网关根据所述用户面建立请求为所述UE建立从eNB到C-GW之间的包含有所述本地网关作为中间节点的用户面承载；
603、所述本地网关根据用户标识确定所述UE对应的子网；
可以理解的是，本地网关中可以存储有UE与子网的对应关系，也可以从用户管理服务器或用户签约数据中获取该UE与子网的对应关系，此处不作限定。该UE由用户标识唯一标识，该用户标识可以携带在该用户面建立请求中，也可以携带在其他由MME发送给该本地网关的信息中，此处不作限定。
604、当所述本地网关接收到所述UE访问所述本地网络的数据时，所述本地网关将访问所述本地网络的数据路由到所述UE对应的子网中。
可选的，在实际应用中，该本地网关存储有该UE对应的子网中网络设备的IP地址的列表，该列表可以由开放平台配置在该本地网关中，也可以由MME转发得到。当该本地网关接收到UE访问网络的数据时，该本地网关根据该UE访问网络的数据的目的IP地址，确定该UE访问网络的数据是否为访问该本地网络的数据，当确定不是访问该本地网络的数据时，该本地网关将该UE访问网络的数据转发到该C-GW；当确定是访问本地网络的数据时，将UE 访问该本地网络的数据路由到该UE对应的子网中。
本实施例中，本地网关为UE建立以自己为中间节点的用户面承载后，自己获取该UE对应的子网，将UE访问本地网络的数据路由到该UE对应的子网中，实现了网络访问权限的精细控制。
2、由MME发送的路由指令确定。
请参阅图7，本发明实施例中接入本地网络的方法另一个实施例包括：
701、本地网关接收MME发送的用户面建立请求；
其中，所述用户面建立请求中包括所述MME为UE建立的从所述本地网关到C-GW的用户面承载的信息，所述MME为核心网的移动功能管理实体，所述核心网的网关为C-GW，所述UE由eNB接入所述核心网，所述本地网关为所述UE对应的本地网关；
702、所述本地网关根据所述用户面建立请求为所述UE建立从eNB到C-GW之间的包含有所述本地网关作为中间节点的用户面承载；
703、所述本地网关接收MME发送的路由指令，所述路由指令中包括子网标识和所述UE的标识，所述子网标识用于唯一标识一个子网，所述UE的标识用于唯一标识所述UE；
704、所述本地网关按照所述路由指令，将所述UE访问所述本地网络的数据路由到所述子网标识所标识的子网中。
可选的，在实际应用中，该本地网关存储有该UE对应的子网中网络设备的IP地址的列表，该列表可以由开放平台配置在该本地网关中，也可以由MME转发得到。当该本地网关接收到UE访问网络的数据时，该本地网关根据该UE访问网络的数据的目的IP地址，确定该UE访问网络的数据是否为访问该本地网络的数据，当确定不是访问该本地网络的数据时，该本地网关将该UE访问网络的数据转发到该C-GW；当确定是访问本地网络的数据时，将UE访问该本地网络的数据路由到该子网标识所标识的子网中。
本发明实施例中，由MME获取与UE对应的子网标识，本地网关接收MME发送的路由指令，按照该路由指令将UE访问本地网络的数据路由到该子网标识所标识的子网中，实现了对网络权限的精细控制且减轻了本地网关的数据处理压力。
三、从eNB的角度：
请参阅图8，本发明实施例中接入本地网络的方法另一个实施例包括：
801、eNB将UE接入到核心网，所述核心网的网关为C-GW；
802、所述eNB为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载，所述本地网关为一个本地网络的网关；
803、当所述eNB接收到所述UE访问所述本地网络的数据时，所述eNB将访问所述本地网络的数据发送到所述本地网关。
可以理解的是，eNB能通过UE访问网络的数据的目的地址确定其为访问本地网络的数据，将其发送给本地网关，eNB也可以将UE访问所有网络的数据都发送给本地网关，此处不作限定。
本实施例中，为UE建立以本地网关作为中间节点的用户面承载后，eNB能将接收到的UE访问该本地网络的数据发送到本地网关，实现了同时接入运营商网络和本地网络的目的。
可选的，作为本发明实施例中接入本地网络的方法另一个实施例，在为UE建立以本地网关作为中间节点的用户面承载之前，该eNB可以先确定该UE对应的本地网关或本地网关标识，然后将确定的该UE对应的本地网关或本地网关标识通知到MME。
上面各实施例中，MME，本地网关和eNB为该UE建立从eNB到C-GW之间的包含本地网关作为中间节点的用户面承载，具体实现方式可以有很多种，例如可以为：
C-GW分配从所述本地网关到所述C-GW的IP地址和隧道终结点标识；
MME获取C-GW分配的从所述本地网关到所述C-GW的IP地址和隧道终结点标识，并将所述C-GW分配的从所述本地网关到所述C-GW的IP地址和隧道终结点标识发送至本地网关；
所述本地网关获取C-GW为UE的用户面分配的从该本地网关到C-GW的IP地址和隧道终结点标识；
所述本地网关为所述UE的用户面分配从该C-GW到该本地网关的IP地址和隧道终结点标识，以及从该eNB到该本地网关的IP地址和隧道终结点标 识，并将所述本地网关分配的从该C-GW到该本地网关的IP地址和隧道终结点标识、以及所述本地网关分配的从该eNB到该本地网关的IP地址和隧道终结点标识发送给所述MME；
所述MME获取所述本地网关分配的从该C-GW到该本地网关的IP地址和隧道终结点标识，以及所述本地网关分配的从该eNB到该本地网关的IP地址和隧道终结点标识，并将所述本地网关分配的从该C-GW到该本地网关的IP地址和隧道终结点标识发送给C-GW，以及将所述本地网关分配的从该eNB到该本地网关的IP地址和隧道终结点标识发送给eNB；
所述eNB获取本地网关给该UE的用户面分配的从该eNB到该本地网关的IP地址和隧道终结点标识；
所述eNB为该UE的用户面分配从该本地网关到该eNB的IP地址和隧道终结点标识，并将所述eNB分配的从该本地网关到该eNB的IP地址和隧道终结点标识发送给所述MME；
所述MME获取eNB分配的从所述本地网关到所述eNB的IP地址和隧道终结点标识，并将所述eNB分配的从所述本地网关到所述eNB的IP地址和隧道终结点标识发送至本地网关。
可以理解的是，上述各分配动作之间并没有时序关系，可以采用任意时序进行分配，此处不作限定。
在实际应用中，上述对IP地址和隧道终结点标识的获取可以通过各网元之间的消息来实现，具体实现方式可以有很多种，下面以其中一种方式为例对以本地网关作为中间节点的用户面承载的建立过程进行具体描述：
1、MME发送第一请求到本地网关，该第一请求用于请求建立从本地网关到eNB和C-GW之间的数据通道；
可以理解的是，在实际应用中，可选的，可以由该第一请求携带用于唯一标识UE的用户标识，也可由其他MME发送给本地网关的信息携带该用户标识，此处不作限定。
2、本地网关接收MME发送的第一请求，该第一请求中包括C-GW为UE的用户面分配的从本地网关到C-GW的IP地址和隧道终结点标识；
需要说明的是，核心网中，MME能直接与C-GW进行通信，包括控制该 C-GW进行用户面信息的分配，将得到的信息通知给该C-GW以及利用该C-GW发送消息。
本步骤中，MME控制该C-GW分配从本地网关到该C-GW的IP地址和隧道终结点标识。可以理解的是，从本地网关到该C-GW的IP地址和隧道终结点标识，可以使得到该信息的本地网关能够建立从该本地网关到该C-GW的数据通道，从而可以通过该数据通道发送信息到该C-GW，也即能够发送信息到该MME。
3、本地网关返回第一响应给该MME，该第一响应中包括本地网关给UE的用户面分配的从该C-GW到该本地网关的IP地址和隧道终结点标识，以及本地网关给该UE的用户面分配的从eNB到该本地网关的IP地址和隧道终结点标识；
可以理解的是，给UE的用户面分配的从该C-GW到该本地网关的IP地址和隧道终结点标识，可以使得得到该信息的C-GW能够建立从C-GW到该本地网关的数据通道，从而可以通过该数据通道发送信息到该本地网关。同理，给该UE的用户面分配的从eNB到该本地网关的IP地址和隧道终结点标识，可以使得得到该信息的eNB能够建立从eNB到该本地网关的数据通道，从而可以通过该数据通道发送信息到该本地网关。
4、MME发送第二请求到eNB，该第二请求用于请求建立从该eNB到该本地网关的数据通道；
5、eNB接收MME发送的第二请求，该第二请求中包括本地网关为UE的用户面分配的从该eNB到该本地网关的IP地址和隧道终结点标识；
eNB得到该本地网关为UE的用户面分配的从该eNB到该本地网关的IP地址和隧道终结点标识后，即可以建立从该eNB到该本地网关的数据通道，eNB可以通过该数据通道发送消息到该本地网关，而UE由该eNB接入，即本地网关可以通过该数据通道接收UE发送的消息。
6、该eNB返回第二响应给该MME，该第二响应中包括所述eNB给该UE的用户面分配的从该本地网关到该eNB的IP地址和隧道终结点标识。
7、该MME将所述eNB给该UE的用户面分配的从该本地网关到该eNB的IP地址和隧道终结点标识发送给该本地网关。
本地网关得到该eNB给该UE的用户面分配的从该本地网关到该eNB的IP地址和隧道终结点标识后，即可以建立从该本地网关到该eNB的数据通道，可以通过该数据通道发送消息到该eNB。
下面分别对本发明实施例中各网络设备进行描述：
一、MME：
请参阅图9，本发明实施例中MME一个实施例包括：
第一接收模块901，用于接收用户设备UE通过基站eNB发送的接入请求，其中所述接入请求携带UE的接入信息；
第一处理模块902，用于根据所述UE的接入信息确定所述UE对应的第一本地网关，所述第一本地网关为第一本地网络的网关，为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载。
本发明实施例中，UE通过eNB接入核心网时，第一处理模块902确定该UE对应的第一本地网关，该第一本地网关为第一本地网络的网关，为该UE建立从该eNB到核心网的网关C-GW之间的包含有该第一本地网关作为中间节点的用户面承载，这样，由于该用户面承载以该第一本地网关作为中间节点，则eNB与核心网的网关C-GW和第一本地网络的网关之间都建立了数据连接，UE通过该eNB，既接入了运营商网络，同时也接入了该第一本地网络，实现了用户同时接入运营商网络和本地网络的目的。
可选的，作为本发明实施例中MME另一个实施例，上述MME中所述第一处理模块902根据所述UE的接入信息确定所述UE对应的第一本地网关之前还用于，获取所述eNB的功能信息，根据所述eNB的功能信息判断所述eNB是否支持本地网关连接，当确定所述eNB支持本地网关连接时，触发确定所述UE对应的第一本地网关的步骤。
这样只在第一处理模块902确定eNB支持本地网关连接时，才触发完成后续动作，节省了系统资源。
可以理解的是，UE可以只与一个本地网关存在对应关系，也可以与多个本地网关存在对应关系：
可选的，作为本发明实施例中MME另一个实施例，所述接入信息中包括 有所述用户标识，所述用户标识用于唯一标识所述UE；上述第一处理模块902根据所述UE的接入信息确定所述UE对应的第一本地网关时，具体可以用于，根据所述用户标识，从用户管理服务器中查找所述UE对应的第一本地网关。
可选的，作为本发明实施例中MME另一个实施例，上述第一本地网关可以为所述UE对应的多个本地网关中优先级最高的本地网关。
本实施例中，UE与多个本地网关存在对应关系，第一处理模块902将其中优先级最高的本地网关作为第一本地网关。
可选的，作为本发明是实施例中MME另一个实施例，上述eNB的功能信息中还包括所述eNB接入的本地网关的信息，上述接入信息中包括有所述用户标识，所述用户标识用于唯一标识所述UE，所述第一处理模块902根据所述UE的接入信息确定所述UE对应的第一本地网关时，具体用于，根据所述eNB接入的本地网关的信息、以及所述用户标识，确定所述UE对应的第一本地网关。
在实际应用中，还可以对UE对应的本地网关进行更新，作为本发明实施例中MME另一个实施例，上述MME中所述第一处理模块902为所述UE建立从所述eNB到所述C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载之后，所述第一处理模块902还用于，当确定所述UE对应的本地网关更新为第三本地网关时，为所述UE建立从所述eNB到所述C-GW之间的包含有所述第三本地网关作为中间节点的用户面承载，所述第三本地网关为第三本地网络的网关。
本实施例中，第一处理模块902能确定更新后的优先级最高的本地网关，并为UE建立以该更新后的本地网关作为中间节点的用户面承载，增强了网络系统的适应性，提高了与用户的交互性能。
在实际应用中，本地网络中还可能存在多个子网，UE可以与其中的部分子网存在对应关系，可选的，作为本发明实施例中MME另一个实施例，上述第一处理模块902还用于，根据所述用户标识获取所述UE对应的第一子网，所述第一子网位于所述第一本地网络中；
所述MME还包括：
第一发送模块903，用于发送第一路由指令给所述第一本地网关，所述第 一路由指令中包括所述第一子网的标识和所述用户标识，所述第一路由指令用于指示将所述UE访问所述第一本地网络的数据路由到所述第一子网中。
可选的，在实际应用中，上述第一处理模块902根据所述用户标识获取所述UE对应的第一子网时，具体可以用于：根据所述用户标识确定所述UE对应的用户组；根据UE的位置信息和/或当前时间，以及所述用户组，确定所述UE对应的第一子网。
本实施例中，第一处理模块902能确定UE在该本地网络中对应的子网，第一发送模块903发送路由指令给该本地网关，使该本地网关将UE访问该本地网络的数据都路由到该子网中，实现了网络访问权限的精确控制。
可以理解的是，还可以直接存在UE与子网的对应关系，根据该对应关系再确定UE与本地网关的对应关系，作为本发明实施例中MME另一个实施例，上述实施例中第一处理模块902还可以用于，确定所述UE对应的第二子网，所述第二子网为当前所述UE对应的多个子网中优先级最高的子网或唯一对应的子网；确定第二子网位于所述第一本地网络中；确定所述第一本地网络的网关为所述第一本地网关。
可选的，在实际应用中，所述第一处理模块902具体可以用于：确定所述UE对应的用户组；用于根据UE的位置信息和/或当前时间，以及所述第二用户组确定单元确定的用户组，确定所述UE对应的第二子网。
本实施例中，UE与子网对应，第一处理模块902能确定与UE对应的子网，再确定该子网位于哪个本地网络中，找出该本地网络的本地网关，最终确定需要作为中间节点建立用户面承载的本地网关。
可选的，作为本发明实施例中MME另一个实施例，上述实施例中第一发送模块903还可以用于：发送第二路由指令给所述第一本地网关，所述第二路由指令中包括所述第二子网的标识和所述UE的标识，所述路由指令用于指示将所述UE访问所述第一本地网络的数据路由到所述第二子网中。
本发明实施例中，第一发送模块903通过发送第二路由指令，使得本地网关将UE访问第一本地网络的数据路由到UE对应的第二子网标识所标识的第二子网中，实现了对网络权限的精确控制。
在实际应用中，UE对应的子网标识也可以更新，更新后，其他模块可以 进行相应处理，作为本发明实施例中MME另一个实施例，上述第一处理模块902为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载之后，所述第一处理模块902还用于：确定所述UE对应的子网更新为第三子网；确定第三子网位于第二本地网络中，所述第二本地网络与所述第一本地网络不同；确定所述第二本地网络的网关为第二本地网关；为所述UE建立从所述eNB到所述C-GW之间的包含有所述第二本地网关作为中间节点的用户面承载。
本发明实施例中，第一处理模块902能确定UE对应的更新后的子网，根据该子网确定该UE对应的本地网关，为该UE建立以该本地网关作为中间节点的用户面承载，增强了网络系统的适应性，提高了与用户的交互性能。
可选的，作为本发明实施例中MME另一个实施例，上述第一处理模块902确定所述第二本地网络的网关为第二本地网关之后，所述第一发送模块903还用于，发送第三路由指令给所述第二本地网关，所述第三路由指令中包括所述第三子网的标识和所述用户标识，所述路由指令用于指示将所述UE访问所述第二本地网络的数据路由到所述第三子网中。
本发明实施例中，第一发送模块903通过发送第三路由指令，使得本地网关将UE访问第二本地网络的数据路由到UE对应的第三子网中，实现了对网络权限的精确控制。
可选的，作为本发明实施例中MME另一个实施例，上述第一处理模块902为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载之后，还用于：根据所述用户标识获取所述UE对应的子网的网络名称；指示所述第一发送模块903通过非接入层NAS消息将所述网络名称发送到所述UE，使得所述UE在用户界面显示所述网络名称。
可选的，在实际应用中，上述第一发送模块903还用于，将当前所述UE对应的子网通知到所述C-GW；
上述第一接收模块901还用于，接收所述C-GW返回的为所述UE对应的子网分配的域名解析服务器地址，所述域名解析服务器地址标识的域名解析服务器中存储有所述UE对应的子网中网络设备的域名与IP地址的对应关系；
上述第一发送模块903还用于，将为所述UE对应的子网分配的域名解析 服务器地址发送给所述UE。
本实施例中，通过第一发送模块903给UE发送子网的网络名称，可以使得该网络名称可以在UE的用户界面显示，便于用户更直观的了解目前访问的子网是哪一个，提升了人机交互性能。
可选的，作为本发明实施例中MME另一个实施例，上述第一发送模块903还用于，将当前所述UE对应的本地网络通知到所述C-GW；
上述第一接收模块901还用于，接收所述C-GW返回的为所述UE对应的本地网络分配的域名解析服务器地址，所述域名解析服务器地址标识的域名解析服务器中存储有所述UE对应的本地网络中网络设备的域名与IP地址的对应关系；
上述第一发送模块903还用于，将为所述UE对应的本地网络分配的域名解析服务器地址发送给所述UE。
可选的，在实际应用中，上述第一处理模块902为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载，具体用于：控制所述第一接收模块901获取C-GW分配的从所述本地网关到所述C-GW的IP地址和隧道终结点标识，并控制所述第一发送模块903将所述C-GW分配的从所述本地网关到所述C-GW的IP地址和隧道终结点标识发送至本地网关；控制所述第一接收模块901获取eNB分配的从所述本地网关到所述eNB的IP地址和隧道终结点标识，并控制所述第一发送模块903将所述eNB分配的从所述本地网关到所述eNB的IP地址和隧道终结点标识发送至本地网关；控制所述第一接收模块901获取所述本地网关分配的从该C-GW到该本地网关的IP地址和隧道终结点标识，以及所述本地网关分配的从该eNB到该本地网关的IP地址和隧道终结点标识，并控制所述第一发送模块903将所述本地网关分配的从该C-GW到该本地网关的IP地址和隧道终结点标识发送给C-GW，以及将所述本地网关分配的从该eNB到该本地网关的IP地址和隧道终结点标识发送给eNB。
二、本地网关：
请参阅图10，本发明实施例中本地网关一个实施例包括：
第二接收模块1001，用于接收移动功能管理实体MME发送的用户面建 立请求，所述用户面建立请求中包括核心网的网关C-GW为UE建立的从所述本地网关到C-GW的用户面承载的信息，其中，所述UE由eNB接入所述核心网，所述本地网关为所述UE对应的本地网关；
第二处理模块1002，用于根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载。
本实施例中，第二处理模块1002能为UE建立以自己作为中间节点的用户面承载，实现UE对运营商网络和以自己作为网关的本地网络的访问。
可选的，作为本发明实施例中本地网关另一个实施例，上述第二处理模块1002还用于，确定接收到的UE访问网络的数据是否为访问所述本地网络的数据；
所述本地网关还包括：
第二发送模块1003，用于当确定所述UE访问网络的数据是访问所述本地网络的数据时，将所述UE访问网络的数据路由到本地网络；当确定所述UE访问网络的数据不是访问所述本地网络的数据时，将所述UE访问网络的数据转发到所述C-GW。
在实际应用中，本地网关可以自己获取UE对应的子网标识，也可以通过接收MME发送的路由指令得到，下面以这两种方式为例分别对本发明实施例中的本地网关进行具体描述：
可选的，作为本发明实施例中本地网关另一个实施例，上述第二处理模块1002根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载之后，所述第二发送模块1003将所述UE访问网络的数据路由到本地网络之前，第二处理模块1002还用于，根据用户标识确定所述UE对应的子网，所述用户标识用于唯一标识所述UE，所述用户面建立请求中包括所述用户标识；
所述第二发送模块1003将所述UE访问网络的数据路由到本地网络时，具体用于，将所述UE访问网络的数据路由到所述UE对应的子网中。
可选的，作为本发明实施例中本地网关另一个实施例，上述第二处理模块1002根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载之后，所述第二发送模块 1003将所述UE访问网络的数据路由到本地网络之前，所述第二接收模块1001还用于，接收MME发送的路由指令，所述路由指令中包括子网标识和用户标识，所述用户标识用于唯一标识所述UE，所述子网标识用于唯一标识一个子网；
所述第二发送模块1003将所述UE访问网络的数据路由到本地网络时，具体用于，按照所述路由指令，将所述UE访问网络的数据路由到所述路由指令中子网标识所标识的子网中。
本发明实施例中，由MME获取与UE对应的子网标识，第二接收模块1001接收MME发送的路由指令，第二发送模块1003按照该路由指令将UE访问本地网络的数据路由到该子网标识所标识的子网中，实现了对网络权限的精细控制且减轻了本地网关的数据处理压力。
可选的，作为本发明实施例中本地网关另一个实施例，上述第二处理模块1003根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载之后，所述第二发送模块1003将所述UE访问网络的数据路由到本地网络之前，第二处理模块1002还用于，根据用户标识确定所述UE对应的子网，所述用户标识用于唯一标识所述UE，所述用户面建立请求中包括所述用户标识；
所述第二发送模块1003将所述UE访问网络的数据路由到本地网络时，具体用于，将所述UE访问网络的数据路由到所述UE对应的子网中。
本实施例中，第二处理模块1002为UE建立以自己为中间节点的用户面承载后，获取该UE对应的子网，第二发送模块1003将UE访问本地网络的数据路由到该子网中，实现了网络访问权限的精细控制。
可选的，作为本发明实施例中本地网关另一个实施例，上述第二处理模块1002确定接收到的UE访问网络的数据是否为访问所述本地网络的数据时，具体用于，当接收到UE访问网络的数据时，根据所述UE访问网络的数据的目的IP地址，确定所述UE访问网络的数据是否为访问所述本地网络的数据，其中，所述本地网关中存储有本地网络的网络设备的IP地址的列表。
可选的，作为本发明实施例中本地网关另一个实施例，上述第二接收模块1001接收移动功能管理实体MME发送的用户面建立请求时，具体用于，获 取C-GW为UE的用户面分配的从该本地网关到C-GW的IP地址和隧道终结点标识；
所述第二处理模块1002根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载时，具体用于：为所述UE的用户面分配从该C-GW到该本地网关的IP地址和隧道终结点标识，以及从该eNB到该本地网关的IP地址和隧道终结点标识；控制所述第二发送模块1003将所述第二处理模块1002分配的从该C-GW到该本地网关的IP地址和隧道终结点标识、以及所述第二处理模块1002分配的从该eNB到该本地网关的IP地址和隧道终结点标识发送给所述MME。
三、基站：
请参阅图11，本发明实施例中基站一个实施例包括：
第三处理模块1101，用于将UE接入到核心网，所述核心网的网关为C-GW，为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载，所述本地网关为一个本地网络的网关；
第三接收模块1102，用于接收所述UE访问所述本地网络的数据；
第三发送模块1103，用于当接收到所述UE访问所述本地网络的数据时，所将访问所述本地网络的数据发送到所述本地网关。
本实施例中，第三处理模块1101为UE建立以本地网关作为中间节点的用户面承载后，第三发送模块1103能将第三接收模块1102接收到的UE访问该本地网络的数据发送到本地网关，实现了同时接入运营商网络和本地网络的目的。
在实际应用中，基站还可以获取UE对应的本地网关或子网标识发送给MME，可选的，作为本发明实施例中基站另一个实施例，上述第三处理模块1101为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载之前，还用于确定所述UE对应的本地网关或子网；
上述第三发送模块1103还用于，将确定的所述UE对应的本地网关或子网通知到MME。
本实施例中，可以由第三发送模块1103将第三处理模块1101确定的UE对应的本地网关或子网通知给MME，减轻了MME的运行压力。
可选的，作为本发明实施例中基站另一个实施例，上述第三处理模块1101为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载时，具体用于：控制所述第三接收模块1102获取本地网关给该UE的用户面分配的从该eNB到该本地网关的IP地址和隧道终结点标识；为该UE的用户面分配从该本地网关到该eNB的IP地址和隧道终结点标识，并控制所述第三发送模块1103将所述第三处理模块1101分配的从该本地网关到该eNB的IP地址和隧道终结点标识发送给所述MME。
请参阅图12，为一个网络设备1200的结构示意图，其可以表示本发明实施例中的MME，本地网关或基站，包括：
输入装置1201、输出装置1202、处理器1203和存储器1204(处理器1203的数量可以一个或多个，图12中以一个处理器1203为例)。在本发明的一些实施例中，输入装置1201、输出装置1202、处理器1203和存储器1204可通过总线或其它方式连接，其中，图12中以通过总线连接为例。
当图12所示网络设备表示MME时，通过调用所述存储器1204存储出操作指令，所述处理器1203用于执行如下步骤：
指示所述输入装置1201接收基站eNB发送的用户设备UE的接入请求，其中所述接入请求携带UE的接入信息；
根据所述UE的接入信息确定所述UE对应的第一本地网关，所述第一本地网关为第一本地网络的网关；
为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载。
本发明的一些实施例中，所述处理器1203执行所述根据所述UE的接入信息确定所述UE对应的第一本地网关的步骤之前，还用于执行如下步骤：
获取所述eNB的功能信息；
根据所述eNB的功能信息判断所述eNB是否支持本地网关连接；
当确定所述eNB支持本地网关连接时，触发所述根据所述UE的接入信息确定所述UE对应的第一本地网关的步骤。
本发明的一些实施例中，所述接入信息中包括有所述用户标识，所述用户标识用于唯一标识所述UE，所述处理器1203执行所述根据所述UE的接入信 息确定所述UE对应的第一本地网关的步骤时，具体执行如下步骤：
根据所述用户标识，从用户管理服务器中查找所述UE对应的第一本地网关。
本发明的一些实施例中，所述第一本地网关为所述UE对应的多个本地网关中优先级最高的本地网关。
本发明的一些实施例中，所述eNB的功能信息中还包括所述eNB接入的本地网关的信息；所述接入信息中包括有所述用户标识，所述用户标识用于唯一标识所述UE，所述处理器1203执行所述根据所述UE的接入信息确定所述UE对应的第一本地网关的步骤时，具体执行如下步骤：
根据所述eNB接入的本地网关的信息、以及所述用户标识，确定所述UE对应的第一本地网关。
本发明的一些实施例中，所述处理器1203执行所述为所述UE建立从所述eNB到所述C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载的步骤之后，还用于执行如下步骤：
当确定所述UE对应的本地网关更新为第三本地网关时，为所述UE建立从所述eNB到所述C-GW之间的包含有所述第三本地网关作为中间节点的用户面承载，所述第三本地网关为第三本地网络的网关。
本发明的一些实施例中，所述处理器1203还用于执行如下步骤：
根据所述用户标识获取所述UE对应的第一子网，所述第一子网位于所述第一本地网络中；
发送第一路由指令给所述第一本地网关，所述第一路由指令中包括所述第一子网的标识和所述用户标识，所述第一路由指令用于指示将所述UE访问所述第一本地网络的数据路由到所述第一子网中。
本发明的一些实施例中，所述处理器1203执行所述根据所述用户标识获取所述UE对应的第一子网的步骤时，具体执行如下步骤：
根据所述用户标识确定所述UE对应的用户组；
根据UE的位置信息和/或当前时间，以及所述用户组，确定所述UE对应的第一子网。
本发明的一些实施例中，所述处理器1203执行所述为所述UE建立从所 述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载的步骤之后，还用于执行如下步骤：
确定所述UE对应的子网更新为第三子网；
确定第三子网位于第二本地网络中，所述第二本地网络与所述第一本地网络不同；
确定所述第二本地网络的网关为第二本地网关；
为所述UE建立从所述eNB到所述C-GW之间的包含有所述第二本地网关作为中间节点的用户面承载。
本发明的一些实施例中，所述处理器1203执行所述确定所述第二本地网络的网关为第二本地网关的步骤之后，还用于执行如下步骤：
指示所述输出装置发送第三路由指令给所述第二本地网关，所述第三路由指令中包括所述第三子网的标识和所述用户标识，所述路由指令用于指示将所述UE访问所述第二本地网络的数据路由到所述第三子网中。
本发明的一些实施例中，所述处理器1203执行所述为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载的步骤之后，还用于执行如下步骤：
根据所述用户标识获取所述UE对应的子网的网络名称；
通过非接入层NAS消息将所述网络名称发送到所述UE，使得所述UE在用户界面显示所述网络名称。
本发明的一些实施例中，所述处理器1203还用于执行如下步骤：
将当前所述UE对应的子网通知到所述C-GW；
接收所述C-GW返回的为所述UE对应的子网分配的域名解析服务器地址，所述域名解析服务器地址标识的域名解析服务器中存储有所述UE对应的子网中网络设备的域名与IP地址的对应关系；
将为所述UE对应的子网分配的域名解析服务器地址发送给所述UE。
本发明的一些实施例中，所述处理器1203还用于执行如下步骤：
将当前所述UE对应的本地网络通知到所述C-GW；
接收所述C-GW返回的为所述UE对应的本地网络分配的域名解析服务器地址，所述域名解析服务器地址标识的域名解析服务器中存储有所述UE对应 的本地网络中网络设备的域名与IP地址的对应关系；
将为所述UE对应的本地网络分配的域名解析服务器地址发送给所述UE。
本发明的一些实施例中，所述处理器1203执行所述为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载的步骤时，具体执行如下步骤：
指示所述输入装置1201获取C-GW分配的从所述本地网关到所述C-GW的IP地址和隧道终结点标识，并指示所述输出装置1202将所述C-GW分配的从所述本地网关到所述C-GW的IP地址和隧道终结点标识发送至本地网关；
指示所述输入装置1201获取eNB分配的从所述本地网关到所述eNB的IP地址和隧道终结点标识，并指示所述输出装置1202将所述eNB分配的从所述本地网关到所述eNB的IP地址和隧道终结点标识发送至本地网关；
指示所述输入装置1201获取所述本地网关分配的从该C-GW到该本地网关的IP地址和隧道终结点标识，以及所述本地网关分配的从该eNB到该本地网关的IP地址和隧道终结点标识，并指示所述输出装置1202将所述本地网关分配的从该C-GW到该本地网关的IP地址和隧道终结点标识发送给C-GW，以及将所述本地网关分配的从该eNB到该本地网关的IP地址和隧道终结点标识发送给eNB。
当图12所示网络设备表示本地网关时，通过调用所述存储器1204存储出操作指令，所述处理器1203用于执行如下步骤：
指示所述输入装置1201接收移动功能管理实体MME发送的用户面建立请求，所述用户面建立请求中包括核心网的网关C-GW为UE建立的从所述本地网关到C-GW的用户面承载的信息，其中，所述UE由eNB接入所述核心网，所述本地网关为所述UE对应的本地网关；
根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载。
本发明的一些实施例中，所述处理器1203还用于执行如下步骤：
确定接收到的UE访问网络的数据是否为访问所述本地网络的数据；
当确定所述UE访问网络的数据是访问所述本地网络的数据时，指示所述输出装置1202将所述UE访问网络的数据路由到本地网络；
当确定所述UE访问网络的数据不是访问所述本地网络的数据时，指示所述输出装置1202将所述UE访问网络的数据转发到所述C-GW。
本发明的一些实施例中，所述处理器1203执行所述根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载的步骤之后，执行所述将所述UE访问网络的数据路由到本地网络的步骤之前，还用于执行如下步骤：
根据用户标识确定所述UE对应的子网，所述用户标识用于唯一标识所述UE，所述用户面建立请求中包括所述用户标识；
所述处理器1203执行所述将所述UE访问网络的数据路由到本地网络的步骤时，具体执行如下步骤：
将所述UE访问网络的数据路由到所述UE对应的子网中。
本发明的一些实施例中，所述处理器1203执行所述根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载的步骤之后，执行所述将所述UE访问网络的数据路由到本地网络的步骤之前，还用于执行如下步骤：
指示所述输入装置1201接收MME发送的路由指令，所述路由指令中包括子网标识和用户标识，所述用户标识用于唯一标识所述UE，所述子网标识用于唯一标识一个子网；
所述处理器1203执行所述将所述UE访问网络的数据路由到本地网络的步骤时，具体执行如下步骤：
按照所述路由指令，将所述UE访问网络的数据路由到所述路由指令中子网标识所标识的子网中。
本发明的一些实施例中，所述处理器1203执行所述确定接收到的UE访问网络的数据是否为访问所述本地网络的数据的步骤时，具体执行如下步骤：
当接收到UE访问网络的数据时，根据所述UE访问网络的数据的目的IP地址，确定所述UE访问网络的数据是否为访问所述本地网络的数据，其中，所述存储器1204中存储有本地网络的网络设备的IP地址的列表。
本发明的一些实施例中，所述处理器1203执行所述指示所述输入装置1201接收移动功能管理实体MME发送的用户面建立请求的步骤时，具体执 行如下步骤：
指示所述输入装置1201获取C-GW为UE的用户面分配的从该本地网关到C-GW的IP地址和隧道终结点标识；
所述处理器1203执行所述根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载的步骤时，具体执行如下步骤：
为所述UE的用户面分配从该C-GW到该本地网关的IP地址和隧道终结点标识，以及从该eNB到该本地网关的IP地址和隧道终结点标识；
指示所述输出装置1202将分配的所述从该C-GW到该本地网关的IP地址和隧道终结点标识、以及分配的所述从该eNB到该本地网关的IP地址和隧道终结点标识发送给所述MME。
当图12所示网络设备表示eNB时，通过调用所述存储器1204存储出操作指令，所述处理器1203用于执行如下步骤：
将UE接入到核心网，所述核心网的网关为C-GW；
为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载，所述本地网关为一个本地网络的网关；
当所述输入装置1201接收到所述UE访问所述本地网络的数据时，指示所述输出装置1202将访问所述本地网络的数据发送到所述本地网关。
本发明的一些实施例中，所述处理器1203执行所述为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载的步骤之前，所述处理器还用于执行如下步骤：
确定所述UE对应的本地网关或子网；
指示所述输出装置将确定的所述UE对应的本地网关或子网通知到MME。
本发明的一些实施例中，所述处理器1203执行所述为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载的步骤时，具体执行如下步骤：
指示所述输入装置1201获取本地网关给该UE的用户面分配的从该eNB到该本地网关的IP地址和隧道终结点标识；
为该UE的用户面分配从该本地网关到该eNB的IP地址和隧道终结点标 识；
指示所述输出装置1202将分配的所述从该本地网关到该eNB的IP地址和隧道终结点标识发送给所述MME。
下面对本发明实施例中接入本地网络的系统进行描述，请参阅图13，本发明实施例中接入本地网络的系统包括：
图9或图12对应的实施例中任一个所示的MME1301、图10或图12对应的实施例中任一个所示的本地网关1302、图11或图12对应的实施例中任一个所示的基站1303以及UE1304。
可选的，作为本发明实施例中接入本地网络的系统，上述系统中还可以包括：
用户管理服务器1305，用于存储所述UE与子网和/或本地网关的对应关系；
域名解析服务器1306，用于存储UE对应的子网中网络设备的域名与IP地址的对应关系，将访问UE对应的子网中业务服务器的域名转换为所述业务服务器的IP地址；
可选的，在实际应用中，该系统还可以包括：
开放平台1307，用于配置所述用户管理服务器1305和所述域名解析服务器1306，或所述本地网关1302。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统，装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为 单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (71)

  1. 一种接入本地网络的方法，其特征在于，所述方法包括：
    移动功能管理实体MME接收基站eNB发送的用户设备UE的接入请求，其中所述接入请求携带UE的接入信息；
    所述MME根据所述UE的接入信息确定所述UE对应的第一本地网关，所述第一本地网关为第一本地网络的网关；
    所述MME为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载。
  2. 根据权利要求1所述的方法，其特征在于，所述MME根据所述UE的接入信息确定所述UE对应的第一本地网关之前还包括：
    所述MME获取所述eNB的功能信息；
    所述MME根据所述eNB的功能信息判断所述eNB是否支持本地网关连接；
    当确定所述eNB支持本地网关连接时，所述MME触发所述MME根据所述UE的接入信息确定所述UE对应的第一本地网关的步骤。
  3. 根据权利要求1或2所述的方法，其特征在于，所述接入信息中包括有所述用户标识，所述用户标识用于唯一标识所述UE，所述MME根据所述UE的接入信息确定所述UE对应的第一本地网关，具体包括：
    所述MME根据所述用户标识，从用户管理服务器中查找所述UE对应的第一本地网关。
  4. 根据权利要求3所述的方法，其特征在于，所述第一本地网关为所述UE对应的多个本地网关中优先级最高的本地网关。
  5. 根据权利要求2所述的方法，其特征在于，所述eNB的功能信息中还包括所述eNB接入的本地网关的信息；所述接入信息中包括有所述用户标识，所述用户标识用于唯一标识所述UE；
    所述MME根据所述UE的接入信息确定所述UE对应的第一本地网关，具体包括：
    所述MME根据所述eNB接入的本地网关的信息、以及所述用户标识，确定所述UE对应的第一本地网关。
  6. 根据权利要求3至5中任一项所述的方法，其特征在于，所述MME为所述UE建立从所述eNB到所述C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载的步骤之后，所述方法还包括：
    当所述MME确定所述UE对应的本地网关更新为第三本地网关时，所述MME为所述UE建立从所述eNB到所述C-GW之间的包含有所述第三本地网关作为中间节点的用户面承载，所述第三本地网关为第三本地网络的网关。
  7. 根据权利要求3至5中任一项所述的方法，其特征在于，所述方法还包括：
    所述MME根据所述用户标识获取所述UE对应的第一子网，所述第一子网位于所述第一本地网络中；
    所述MME发送第一路由指令给所述第一本地网关，所述第一路由指令中包括所述第一子网的标识和所述用户标识，所述第一路由指令用于指示将所述UE访问所述第一本地网络的数据路由到所述第一子网中。
  8. 根据权利要求7所述的方法，其特征在于，所述MME根据所述用户标识获取所述UE对应的第一子网，具体包括：
    所述MME根据所述用户标识确定所述UE对应的用户组；
    所述MME根据UE的位置信息和/或当前时间，以及所述用户组，确定所述UE对应的第一子网。
  9. 根据权利要求7或8所述的方法，其特征在于，所述MME为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载的步骤之后，所述方法还包括：
    所述MME确定所述UE对应的子网更新为第三子网；
    所述MME确定第三子网位于第二本地网络中，所述第二本地网络与所述第一本地网络不同；
    所述MME确定所述第二本地网络的网关为第二本地网关；
    所述MME为所述UE建立从所述eNB到所述C-GW之间的包含有所述第二本地网关作为中间节点的用户面承载。
  10. 根据权利要求9所述的方法，其特征在于，所述MME确定所述第二本地网络的网关为第二本地网关的步骤之后还包括：
    所述MME发送第三路由指令给所述第二本地网关，所述第三路由指令中包括所述第三子网的标识和所述用户标识，所述路由指令用于指示将所述UE访问所述第二本地网络的数据路由到所述第三子网中。
  11. 根据权利要求3至10中任一项所述的方法，其特征在于，所述MME为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载的步骤之后还包括：
    所述MME根据所述用户标识获取所述UE对应的子网的网络名称；
    所述MME通过非接入层NAS消息将所述网络名称发送到所述UE，使得所述UE在用户界面显示所述网络名称。
  12. 根据权利要求7至11中任一项所述的方法，其特征在于，所述方法还包括：
    所述MME将当前所述UE对应的子网通知到所述C-GW；
    所述MME接收所述C-GW返回的为所述UE对应的子网分配的域名解析服务器地址，所述域名解析服务器地址标识的域名解析服务器中存储有所述UE对应的子网中网络设备的域名与IP地址的对应关系；
    所述MME将为所述UE对应的子网分配的域名解析服务器地址发送给所述UE。
  13. 根据权利要求1至12所述的方法，其特征在于，所述方法还包括：
    所述MME将当前所述UE对应的本地网络通知到所述C-GW；
    所述MME接收所述C-GW返回的为所述UE对应的本地网络分配的域名解析服务器地址，所述域名解析服务器地址标识的域名解析服务器中存储有所述UE对应的本地网络中网络设备的域名与IP地址的对应关系；
    所述MME将为所述UE对应的本地网络分配的域名解析服务器地址发送给所述UE。
  14. 根据权利要求1至13中任一项所述的方法，其特征在于，所述MME为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载，具体包括：
    MME获取C-GW分配的从所述本地网关到所述C-GW的IP地址和隧道终结点标识，并将所述C-GW分配的从所述本地网关到所述C-GW的IP地址 和隧道终结点标识发送至本地网关；
    所述MME获取eNB分配的从所述本地网关到所述eNB的IP地址和隧道终结点标识，并将所述eNB分配的从所述本地网关到所述eNB的IP地址和隧道终结点标识发送至本地网关；
    所述MME获取所述本地网关分配的从该C-GW到该本地网关的IP地址和隧道终结点标识，以及所述本地网关分配的从该eNB到该本地网关的IP地址和隧道终结点标识，并将所述本地网关分配的从该C-GW到该本地网关的IP地址和隧道终结点标识发送给C-GW，以及将所述本地网关分配的从该eNB到该本地网关的IP地址和隧道终结点标识发送给eNB。
  15. 一种接入本地网络的方法，其特征在于，所述方法包括：
    本地网关接收移动功能管理实体MME发送的用户面建立请求，所述用户面建立请求中包括核心网的网关C-GW为UE建立的从所述本地网关到C-GW的用户面承载的信息，其中，所述UE由eNB接入所述核心网，所述本地网关为所述UE对应的本地网关；
    所述本地网关根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载。
  16. 根据权利要求15所述的方法，其特征在于，所述方法还包括：
    所述本地网关确定接收到的UE访问网络的数据是否为访问所述本地网络的数据；
    当确定所述UE访问网络的数据是访问所述本地网络的数据时，所述本地网关将所述UE访问网络的数据路由到本地网络；
    当确定所述UE访问网络的数据不是访问所述本地网络的数据时，所述本地网关将所述UE访问网络的数据转发到所述C-GW。
  17. 根据权利要求16所述的方法，其特征在于，所述本地网关根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载的步骤之后，所述本地网关将所述UE访问网络的数据路由到本地网络的步骤之前还包括：
    所述本地网关根据用户标识确定所述UE对应的子网，所述用户标识用于唯一标识所述UE，所述用户面建立请求中包括所述用户标识，则所述本地网 关将所述UE访问网络的数据路由到本地网络的步骤包括：所述本地网关将所述UE访问网络的数据路由到所述UE对应的子网中。
  18. 根据权利要求16所述的方法，其特征在于，所述本地网关根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载的步骤之后，所述本地网关将所述UE访问网络的数据路由到本地网络之前还包括：
    所述本地网关接收MME发送的路由指令，所述路由指令中包括子网标识和用户标识，所述用户标识用于唯一标识所述UE，所述子网标识用于唯一标识一个子网；
    所述本地网关将所述UE访问网络的数据路由到本地网络，具体包括：
    所述本地网关按照所述路由指令，将所述UE访问网络的数据路由到所述路由指令中子网标识所标识的子网中。
  19. 根据权利要求16至18中任一项所述的方法，其特征在于，所述本地网关确定接收到的UE访问网络的数据是否为访问所述本地网络的数据，具体包括：
    当所述本地网关接收到UE访问网络的数据时，所述本地网关根据所述UE访问网络的数据的目的IP地址，确定所述UE访问网络的数据是否为访问所述本地网络的数据，其中，所述本地网关中存储有本地网络的网络设备的IP地址的列表。
  20. 根据权利要求15至19中任一项所述的方法，其特征在于，所述本地网关接收移动功能管理实体MME发送的用户面建立请求，具体包括：
    所述本地网关获取C-GW为UE的用户面分配的从该本地网关到C-GW的IP地址和隧道终结点标识；
    所述本地网关根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载，具体包括：
    所述本地网关为所述UE的用户面分配从该C-GW到该本地网关的IP地址和隧道终结点标识，以及从该eNB到该本地网关的IP地址和隧道终结点标识，并将所述本地网关分配的从该C-GW到该本地网关的IP地址和隧道终结点标识、以及所述本地网关分配的从该eNB到该本地网关的IP地址和隧道终 结点标识发送给所述MME。
  21. 一种接入本地网络的方法，其特征在于，所述方法包括：
    eNB将UE接入到核心网，所述核心网的网关为C-GW；
    所述eNB为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载，所述本地网关为一个本地网络的网关；
    当所述eNB接收到所述UE访问所述本地网络的数据时，所述eNB将访问所述本地网络的数据发送到所述本地网关。
  22. 根据权利要求21所述的方法，其特征在于，所述eNB为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载的步骤之前还包括：
    所述eNB确定所述UE对应的本地网关或子网；
    所述eNB将确定的所述UE对应的本地网关或子网通知到MME。
  23. 根据权利要求21或22所述的方法，其特征在于，所述eNB为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载，具体包括：
    所述eNB获取本地网关给该UE的用户面分配的从该eNB到该本地网关的IP地址和隧道终结点标识；
    所述eNB为该UE的用户面分配从该本地网关到该eNB的IP地址和隧道终结点标识，并将所述eNB分配的从该本地网关到该eNB的IP地址和隧道终结点标识发送给所述MME。
  24. 一种MME，其特征在于，包括：
    第一接收模块，用于接收基站eNB发送的用户设备UE的接入请求，其中所述接入请求携带UE的接入信息；
    第一处理模块，用于根据所述UE的接入信息确定所述UE对应的第一本地网关，所述第一本地网关为第一本地网络的网关，为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载。
  25. 根据权利要求24所述的MME，其特征在于，所述第一处理模块根据所述UE的接入信息确定所述UE对应的第一本地网关之前还用于，获取所 述eNB的功能信息，根据所述eNB的功能信息判断所述eNB是否支持本地网关连接，当确定所述eNB支持本地网关连接时，触发确定所述UE对应的第一本地网关的步骤。
  26. 根据权利要求24或25所述的MME，其特征在于，所述接入信息中包括有所述用户标识，所述用户标识用于唯一标识所述UE，所述第一处理模块根据所述UE的接入信息确定所述UE对应的第一本地网关时，具体用于根据所述用户标识，从用户管理服务器中查找所述UE对应的第一本地网关。
  27. 根据权利要求26所述的MME，其特征在于，所述第一本地网关为所述UE对应的多个本地网关中优先级最高的本地网关。
  28. 根据权利要求25所述的MME，其特征在于，所述eNB的功能信息中还包括所述eNB接入的本地网关的信息；所述接入信息中包括有所述用户标识，所述用户标识用于唯一标识所述UE，所述第一处理模块根据所述UE的接入信息确定所述UE对应的第一本地网关时，具体用于，根据所述eNB接入的本地网关的信息、以及用户标识，确定所述UE对应的第一本地网关。
  29. 根据权利要求26至28中任一项所述的MME，其特征在于，所述第一处理模块为所述UE建立从所述eNB到所述C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载之后，所述第一处理模块还用于，当确定所述UE对应的本地网关更新为第三本地网关时，为所述UE建立从所述eNB到所述C-GW之间的包含有所述第三本地网关作为中间节点的用户面承载，所述第三本地网关为第三本地网络的网关。
  30. 根据权利要求26至28中任一项所述的MME，其特征在于，所述第一处理模块还用于，根据所述用户标识获取所述UE对应的第一子网，所述第一子网位于所述第一本地网络中；
    所述MME还包括：
    第一发送模块，用于发送第一路由指令给所述第一本地网关，所述第一路由指令中包括所述第一子网的标识和所述用户标识，所述第一路由指令用于指示将所述UE访问所述第一本地网络的数据路由到所述第一子网中。
  31. 根据权利要求30所述的MME，其特征在于，所述第一处理模块根据所述用户标识获取所述UE对应的第一子网时，具体用于：根据所述用户标 识确定所述UE对应的用户组；根据UE的位置信息和/或当前时间，以及所述用户组，确定所述UE对应的第一子网。
  32. 根据权利要求30或31所述的MME，其特征在于，所述第一处理模块为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载之后，所述第一处理模块还用于：确定所述UE对应的子网更新为第三子网；确定第三子网位于第二本地网络中，所述第二本地网络与所述第一本地网络不同；确定所述第二本地网络的网关为第二本地网关；为所述UE建立从所述eNB到所述C-GW之间的包含有所述第二本地网关作为中间节点的用户面承载。
  33. 根据权利要求32所述的MME，其特征在于，所述第一处理模块确定所述第二本地网络的网关为第二本地网关之后，所述第一发送模块还用于，发送第三路由指令给所述第二本地网关，所述第三路由指令中包括所述第三子网的标识和所述用户标识，所述路由指令用于指示将所述UE访问所述第二本地网络的数据路由到所述第三子网中。
  34. 根据权利要求26至33中任一项所述的MME，其特征在于，所述第一处理模块为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载之后，还用于：根据所述用户标识获取所述UE对应的子网的网络名称；通过非接入层NAS消息将所述网络名称发送到所述UE，使得所述UE在用户界面显示所述网络名称。
  35. 根据权利要求30至34中任一项所述的MME，其特征在于，所述第一发送模块还用于，将当前所述UE对应的子网通知到所述C-GW；
    所述第一接收模块还用于，接收所述C-GW返回的为所述UE对应的子网分配的域名解析服务器地址，所述域名解析服务器地址标识的域名解析服务器中存储有所述UE对应的子网中网络设备的域名与IP地址的对应关系；
    所述第一发送模块还用于，将为所述UE对应的子网分配的域名解析服务器地址发送给所述UE。
  36. 根据权利要求24至35中任一项所述的MME，其特征在于，所述第一发送模块还用于，将当前所述UE对应的本地网络通知到所述C-GW；
    所述第一接收模块还用于，接收所述C-GW返回的为所述UE对应的本地 网络分配的域名解析服务器地址，所述域名解析服务器地址标识的域名解析服务器中存储有所述UE对应的本地网络中网络设备的域名与IP地址的对应关系；
    所述第一发送模块还用于，将为所述UE对应的本地网络分配的域名解析服务器地址发送给所述UE。
  37. 根据权利要求24至36中任一项所述的MME，其特征在于，所述第一处理模块为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载，具体用于：控制所述第一接收模块获取C-GW分配的从所述本地网关到所述C-GW的IP地址和隧道终结点标识，并控制所述第一发送模块将所述C-GW分配的从所述本地网关到所述C-GW的IP地址和隧道终结点标识发送至本地网关；控制所述第一接收模块获取eNB分配的从所述本地网关到所述eNB的IP地址和隧道终结点标识，并控制所述第一发送模块将所述eNB分配的从所述本地网关到所述eNB的IP地址和隧道终结点标识发送至本地网关；控制所述第一接收模块获取所述本地网关分配的从该C-GW到该本地网关的IP地址和隧道终结点标识，以及所述本地网关分配的从该eNB到该本地网关的IP地址和隧道终结点标识，并控制所述第一发送模块将所述本地网关分配的从该C-GW到该本地网关的IP地址和隧道终结点标识发送给C-GW，以及将所述本地网关分配的从该eNB到该本地网关的IP地址和隧道终结点标识发送给eNB。
  38. 一种本地网关，其特征在于，包括：
    第二接收模块，用于接收移动功能管理实体MME发送的用户面建立请求，所述用户面建立请求中包括核心网的网关C-GW为UE建立的从所述本地网关到C-GW的用户面承载的信息，其中，所述UE由eNB接入所述核心网，所述本地网关为所述UE对应的本地网关；
    第二处理模块，用于根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载。
  39. 根据权利要求38所述的本地网关，其特征在于，所述第二处理模块还用于，确定接收到的UE访问网络的数据是否为访问所述本地网络的数据；
    所述本地网关还包括：
    第二发送模块，用于当确定所述UE访问网络的数据是访问所述本地网络的数据时，将所述UE访问网络的数据路由到本地网络；当确定所述UE访问网络的数据不是访问所述本地网络的数据时，将所述UE访问网络的数据转发到所述C-GW。
  40. 根据权利要求39所述的本地网关，其特征在于，所述第二处理模块根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载之后，所述第二发送模块将所述UE访问网络的数据路由到本地网络之前，第二处理模块还用于，根据用户标识确定所述UE对应的子网，所述用户标识用于唯一标识所述UE，所述用户面建立请求中包括所述用户标识；
    所述第二发送模块将所述UE访问网络的数据路由到本地网络时，具体用于，将所述UE访问网络的数据路由到所述UE对应的子网中。
  41. 根据权利要求39所述的本地网关，其特征在于，所述第二处理模块根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载之后，所述第二发送模块将所述UE访问网络的数据路由到本地网络之前，所述第二接收模块还用于，接收MME发送的路由指令，所述路由指令中包括子网标识和用户标识，所述用户标识用于唯一标识所述UE，所述子网标识用于唯一标识一个子网；
    所述第二发送模块将所述UE访问网络的数据路由到本地网络时，具体用于，按照所述路由指令，将所述UE访问网络的数据路由到所述路由指令中子网标识所标识的子网中。
  42. 根据权利要求39至41中任一项所述的本地网关，其特征在于，所述第二处理模块确定接收到的UE访问网络的数据是否为访问所述本地网络的数据时，具体用于，当接收到UE访问网络的数据时，根据所述UE访问网络的数据的目的IP地址，确定所述UE访问网络的数据是否为访问所述本地网络的数据，其中，所述本地网关中存储有本地网络的网络设备的IP地址的列表。
  43. 根据权利要求38至42中任一项所述的本地网关，其特征在于，所述第二接收模块接收移动功能管理实体MME发送的用户面建立请求时，具体用于，获取C-GW为UE的用户面分配的从该本地网关到C-GW的IP地址和隧 道终结点标识；
    所述第二处理模块根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载时，具体用于：为所述UE的用户面分配从该C-GW到该本地网关的IP地址和隧道终结点标识，以及从该eNB到该本地网关的IP地址和隧道终结点标识；控制所述第二发送模块将所述第二处理模块分配的从该C-GW到该本地网关的IP地址和隧道终结点标识、以及所述第二处理模块分配的从该eNB到该本地网关的IP地址和隧道终结点标识发送给所述MME。
  44. 一种基站eNB，其特征在于，包括：
    第三处理模块，用于将UE接入到核心网，所述核心网的网关为C-GW，为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载，所述本地网关为一个本地网络的网关；
    第三接收模块，用于接收所述UE访问所述本地网络的数据；
    第三发送模块，用于当接收到所述UE访问所述本地网络的数据时，所将访问所述本地网络的数据发送到所述本地网关。
  45. 根据权利要求44所述的eNB，其特征在于，所述第三处理模块为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载之前，还用于确定所述UE对应的本地网关或子网；
    所述第三发送模块还用于，将确定的所述UE对应的本地网关或子网通知到MME。
  46. 根据权利要求40或41所述的eNB，其特征在于，所述第三处理模块为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载时，具体用于：控制所述第三接收模块获取本地网关给该UE的用户面分配的从该eNB到该本地网关的IP地址和隧道终结点标识；为该UE的用户面分配从该本地网关到该eNB的IP地址和隧道终结点标识，并控制所述第三发送模块将所述第三处理模块分配的从该本地网关到该eNB的IP地址和隧道终结点标识发送给所述MME。
  47. 一种MME，其特征在于，包括：
    输入装置，输出装置，处理器和存储器；
    通过调用所述存储器存储的操作指令，所述处理器用于执行如下步骤：
    指示所述输入装置接收基站eNB发送的用户设备UE的接入请求，其中所述接入请求携带UE的接入信息；
    根据所述UE的接入信息确定所述UE对应的第一本地网关，所述第一本地网关为第一本地网络的网关；
    为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载。
  48. 根据权利要求47所述的MME，其特征在于，所述处理器执行所述根据所述UE的接入信息确定所述UE对应的第一本地网关的步骤之前，还用于执行如下步骤：
    获取所述eNB的功能信息；
    根据所述eNB的功能信息判断所述eNB是否支持本地网关连接；
    当确定所述eNB支持本地网关连接时，触发所述根据所述UE的接入信息确定所述UE对应的第一本地网关的步骤。
  49. 根据权利要求47或48所述的MME，其特征在于，所述接入信息中包括有所述用户标识，所述用户标识用于唯一标识所述UE，所述处理器执行所述根据所述UE的接入信息确定所述UE对应的第一本地网关的步骤时，具体执行如下步骤：
    根据所述用户标识，从用户管理服务器中查找所述UE对应的第一本地网关。
  50. 根据权利要求49所述的MME，其特征在于，所述第一本地网关为所述UE对应的多个本地网关中优先级最高的本地网关。
  51. 根据权利要求50所述的MME，其特征在于，所述eNB的功能信息中还包括所述eNB接入的本地网关的信息；所述接入信息中包括有所述用户标识，所述用户标识用于唯一标识所述UE，所述处理器执行所述根据所述UE的接入信息确定所述UE对应的第一本地网关的步骤时，具体执行如下步骤：
    根据所述eNB接入的本地网关的信息、以及所述用户标识，确定所述UE对应的第一本地网关。
  52. 根据权利要求49至51中任一项所述的MME，其特征在于，所述处 理器执行所述为所述UE建立从所述eNB到所述C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载的步骤之后，还用于执行如下步骤：
    当确定所述UE对应的本地网关更新为第三本地网关时，为所述UE建立从所述eNB到所述C-GW之间的包含有所述第三本地网关作为中间节点的用户面承载，所述第三本地网关为第三本地网络的网关。
  53. 根据权利要求49至51中任一项所述的MME，其特征在于，所述处理器还用于执行如下步骤：
    根据所述用户标识获取所述UE对应的第一子网，所述第一子网位于所述第一本地网络中；
    发送第一路由指令给所述第一本地网关，所述第一路由指令中包括所述第一子网的标识和所述用户标识，所述第一路由指令用于指示将所述UE访问所述第一本地网络的数据路由到所述第一子网中。
  54. 根据权利要求53所述的MME，其特征在于，所述处理器执行所述根据所述用户标识获取所述UE对应的第一子网的步骤时，具体执行如下步骤：
    根据所述用户标识确定所述UE对应的用户组；
    根据UE的位置信息和/或当前时间，以及所述用户组，确定所述UE对应的第一子网。
  55. 根据权利要求53或54所述的MME，其特征在于，所述处理器执行所述为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载的步骤之后，还用于执行如下步骤：
    确定所述UE对应的子网更新为第三子网；
    确定第三子网位于第二本地网络中，所述第二本地网络与所述第一本地网络不同；
    确定所述第二本地网络的网关为第二本地网关；
    为所述UE建立从所述eNB到所述C-GW之间的包含有所述第二本地网关作为中间节点的用户面承载。
  56. 根据权利要求55所述的MME，其特征在于，所述处理器执行所述确定所述第二本地网络的网关为第二本地网关的步骤之后，还用于执行如下步骤：
    指示所述输出装置发送第三路由指令给所述第二本地网关，所述第三路由指令中包括所述第三子网的标识和所述用户标识，所述路由指令用于指示将所述UE访问所述第二本地网络的数据路由到所述第三子网中。
  57. 根据权利要求49至56中任一项所述的方法，其特征在于，所述处理器执行所述为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载的步骤之后，还用于执行如下步骤：
    根据所述用户标识获取所述UE对应的子网的网络名称；
    通过非接入层NAS消息将所述网络名称发送到所述UE，使得所述UE在用户界面显示所述网络名称。
  58. 根据权利要求53至57中任一项所述的MME，其特征在于，所述处理器还用于执行如下步骤：
    将当前所述UE对应的子网通知到所述C-GW；
    接收所述C-GW返回的为所述UE对应的子网分配的域名解析服务器地址，所述域名解析服务器地址标识的域名解析服务器中存储有所述UE对应的子网中网络设备的域名与IP地址的对应关系；
    将为所述UE对应的子网分配的域名解析服务器地址发送给所述UE。
  59. 根据权利要求47至58中任一项所述的MME，其特征在于，所述处理器还用于执行如下步骤：
    将当前所述UE对应的本地网络通知到所述C-GW；
    接收所述C-GW返回的为所述UE对应的本地网络分配的域名解析服务器地址，所述域名解析服务器地址标识的域名解析服务器中存储有所述UE对应的本地网络中网络设备的域名与IP地址的对应关系；
    将为所述UE对应的本地网络分配的域名解析服务器地址发送给所述UE。
  60. 根据权利要求47至59中任一项所述的MME，其特征在于，所述处理器执行所述为所述UE建立从所述eNB到核心网网关C-GW之间的包含有所述第一本地网关作为中间节点的用户面承载的步骤时，具体执行如下步骤：
    指示所述输入装置获取C-GW分配的从所述本地网关到所述C-GW的IP地址和隧道终结点标识，并指示所述输出装置将所述C-GW分配的从所述本地网关到所述C-GW的IP地址和隧道终结点标识发送至本地网关；
    指示所述输入装置获取eNB分配的从所述本地网关到所述eNB的IP地址和隧道终结点标识，并指示所述输出装置将所述eNB分配的从所述本地网关到所述eNB的IP地址和隧道终结点标识发送至本地网关；
    指示所述输入装置获取所述本地网关分配的从该C-GW到该本地网关的IP地址和隧道终结点标识，以及所述本地网关分配的从该eNB到该本地网关的IP地址和隧道终结点标识，并指示所述输出装置将所述本地网关分配的从该C-GW到该本地网关的IP地址和隧道终结点标识发送给C-GW，以及将所述本地网关分配的从该eNB到该本地网关的IP地址和隧道终结点标识发送给eNB。
  61. 一种本地网关，其特征在于，包括：
    输入装置，输出装置，处理器和存储器；
    通过调用所述存储器存储的操作指令，所述处理器用于执行如下步骤：
    指示所述输入装置接收移动功能管理实体MME发送的用户面建立请求，所述用户面建立请求中包括核心网的网关C-GW为UE建立的从所述本地网关到C-GW的用户面承载的信息，其中，所述UE由eNB接入所述核心网，所述本地网关为所述UE对应的本地网关；
    根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载。
  62. 根据权利要求61所述的本地网关，其特征在于，所述处理器还用于执行如下步骤：
    确定接收到的UE访问网络的数据是否为访问所述本地网络的数据；
    当确定所述UE访问网络的数据是访问所述本地网络的数据时，指示所述输出装置将所述UE访问网络的数据路由到本地网络；
    当确定所述UE访问网络的数据不是访问所述本地网络的数据时，指示所述输出装置将所述UE访问网络的数据转发到所述C-GW。
  63. 根据权利要求62所述的本地网关，其特征在于，所述处理器执行所述根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载的步骤之后，执行所述将所述UE访问网络的数据路由到本地网络的步骤之前，还用于执行如下步骤：
    根据用户标识确定所述UE对应的子网，所述用户标识用于唯一标识所述UE，所述用户面建立请求中包括所述用户标识；
    所述处理器执行所述将所述UE访问网络的数据路由到本地网络的步骤时，具体执行如下步骤：
    将所述UE访问网络的数据路由到所述UE对应的子网中。
  64. 根据权利要求62所述的本地网关，其特征在于，所述处理器执行所述根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载的步骤之后，执行所述将所述UE访问网络的数据路由到本地网络的步骤之前，还用于执行如下步骤：
    指示所述输入装置接收MME发送的路由指令，所述路由指令中包括子网标识和用户标识，所述用户标识用于唯一标识所述UE，所述子网标识用于唯一标识一个子网；
    所述处理器执行所述将所述UE访问网络的数据路由到本地网络的步骤时，具体执行如下步骤：
    按照所述路由指令，将所述UE访问网络的数据路由到所述路由指令中子网标识所标识的子网中。
  65. 根据权利要求62至64中任一项所述的本地网关，其特征在于，所述处理器执行所述确定接收到的UE访问网络的数据是否为访问所述本地网络的数据的步骤时，具体执行如下步骤：
    当接收到UE访问网络的数据时，根据所述UE访问网络的数据的目的IP地址，确定所述UE访问网络的数据是否为访问所述本地网络的数据，其中，所述存储器中存储有本地网络的网络设备的IP地址的列表。
  66. 根据权利要求61至65中任一项所述的本地网关，其特征在于，所述处理器执行所述指示所述输入装置接收移动功能管理实体MME发送的用户面建立请求的步骤时，具体执行如下步骤：
    指示所述输入装置获取C-GW为UE的用户面分配的从该本地网关到C-GW的IP地址和隧道终结点标识；
    所述处理器执行所述根据所述用户面建立请求为所述UE建立从所述eNB到所述C-GW之间的包含有所述本地网关作为中间节点的用户面承载的步骤 时，具体执行如下步骤：
    为所述UE的用户面分配从该C-GW到该本地网关的IP地址和隧道终结点标识，以及从该eNB到该本地网关的IP地址和隧道终结点标识；
    指示所述输出装置将分配的所述从该C-GW到该本地网关的IP地址和隧道终结点标识、以及分配的所述从该eNB到该本地网关的IP地址和隧道终结点标识发送给所述MME。
  67. 一种基站eNB，其特征在于，包括：
    输入装置，输出装置，处理器，存储器；
    通过调用所述存储器存储的操作指令，所述处理器用于执行如下操作：
    将UE接入到核心网，所述核心网的网关为C-GW；
    为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载，所述本地网关为一个本地网络的网关；
    当所述输入装置接收到所述UE访问所述本地网络的数据时，指示所述输出装置将访问所述本地网络的数据发送到所述本地网关。
  68. 根据权利要求67所述的基站，其特征在于，所述处理器执行所述为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载的步骤之前，所述处理器还用于执行如下步骤：
    确定所述UE对应的本地网关或子网；
    指示所述输出装置将确定的所述UE对应的本地网关或子网通知到MME。
  69. 根据权利要求67或68所述的基站，其特征在于，所述处理器执行所述为所述UE建立从eNB到C-GW之间的包含所述UE对应的本地网关作为中间节点的用户面承载的步骤时，具体执行如下步骤：
    指示所述输入装置获取本地网关给该UE的用户面分配的从该eNB到该本地网关的IP地址和隧道终结点标识；
    为该UE的用户面分配从该本地网关到该eNB的IP地址和隧道终结点标识；
    指示所述输出装置将分配的所述从该本地网关到该eNB的IP地址和隧道终结点标识发送给所述MME。
  70. 一种接入本地网络的系统，其特征在于，包括：
    权利要求24至37中任一项或47至60中任一项所述的MME，权利要求38至43中任一项或61至66中任一项所述的本地网关，权利要求44至46中任一项或67至69中任一项所述的基站，以及UE。
  71. 根据权利要求64所述的系统，其特征在于，所述系统还包括：
    用户管理服务器，用于存储所述UE与子网和/或本地网关的对应关系；
    域名解析服务器，用于存储UE对应的子网中网络设备的域名与IP地址的对应关系，将访问UE对应的子网中业务服务器的域名转换为所述业务服务器的IP地址。
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