WO2012130133A1 - Point d'accès et procédé d'accès par un terminal - Google Patents

Point d'accès et procédé d'accès par un terminal Download PDF

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Publication number
WO2012130133A1
WO2012130133A1 PCT/CN2012/073134 CN2012073134W WO2012130133A1 WO 2012130133 A1 WO2012130133 A1 WO 2012130133A1 CN 2012073134 W CN2012073134 W CN 2012073134W WO 2012130133 A1 WO2012130133 A1 WO 2012130133A1
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WO
WIPO (PCT)
Prior art keywords
terminal
module
mme
enodeb
registration
Prior art date
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PCT/CN2012/073134
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English (en)
Chinese (zh)
Inventor
朱进国
甘露
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Publication of WO2012130133A1 publication Critical patent/WO2012130133A1/fr

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Classifications

    • 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
    • H04W88/08—Access point devices
    • H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to an Access Point (AP) in a 3GPP (3rd Generation Partnership Project) radio access network, and a simplified access network system based on an access point. Terminal access method in . Background technique
  • LTE General Packet Radio Service
  • LTE Long Term Evolution
  • EPC evolved Packet Core
  • Evolved wireless network controller/evolved wireless node/eNodeB the evolved wireless node can provide more than UTRAN/GERAN (Universal Mobile Telecommunication System Radio Access Network/GSM EDGE Radio Access Network) Radio access network, refers to GPRS wireless network, UTRAN stands for 3G, GERAN stands for 2G) higher uplink and downlink rates, lower transmission delay and more reliable wireless transmission.
  • UTRAN Universal Mobile Telecommunication System Radio Access Network/GSM EDGE Radio Access Network
  • GERAN stands for 2G
  • the eNodeB provides wireless resources for the access of the User Equipment (UE), and establishes an S1 control plane link with the core network mobility management entity MME.
  • UE User Equipment
  • Mobility Management Entity also a control plane entity, a server that temporarily stores user data, responsible for managing and storing terminal contexts (such as UE/user identity, mobility management state, user security parameters, etc.)
  • the user is assigned a temporary identifier (GUTI), and the MME is responsible for authenticating the user when the user accesses the LTE.
  • the MME and the eNodeB are connected through an S1-C interface.
  • the System Architecture Evolution Gateway (SAE GW) is a user plane entity responsible for user plane data routing processing.
  • the SAE GW is generally divided into a serving gateway Serving GW and a packet data network gateway PDN GW.
  • the Serving GW is responsible for the mobility anchor between LTE and 2G/3G, and the downlink data triggers the MME paging in the idle state; the PDN GW is responsible for the UE access.
  • the gateway function of the PDN is to assign a user IP (Internet Protocol) address to the user.
  • the PDN GW and the Serving GW may be combined in one physical entity.
  • the PDN GW is connected to the carrier network through the SGs interface.
  • the user equipment UE obtains an IP address from the PDN GW by registering and authenticating in the MME to provide services for the user.
  • Figure 2 shows the registration process of the user in LTE.
  • Step 201 After the terminal is powered on, the LTE module finds that the user is in the LTE coverage area, and the LTE module selects a suitable cell, initiates a Radio Resource Control (RRC) link establishment request to the eNodeB, establishes an RRC connection, and then initiates a registration request.
  • RRC Radio Resource Control
  • IMSI user permanent user identity
  • Step 202 The eNodeB selects an appropriate MME to forward the registration request to the selected MME.
  • HSS Home Subscriber Server
  • Step 204 The HSS returns a user authentication parameter.
  • Step 205 The MME initiates an authentication request to the UE, where a random number is included.
  • Step 206 The UE first authenticates the network. After the success, the UE calculates an authentication result according to the random number, and then returns the authentication result to the MME. The UE simultaneously calculates an integrity key and an encryption key based on the random number.
  • Step 207 The MME determines whether the authentication result is successful. After the success, the MME initiates a security mode command with the supported security algorithm, and the related integrity and encryption key.
  • Step 209 The UE returns to the security mode completion, with the security algorithm selected by the UE. After the algorithm is negotiated, both the UE and the eNodeB have associated integrity keys and encryption keys, and the security mode is successfully started.
  • Step 210 The eNodeB returns the encryption mode to the MME.
  • Step 211 The MME initiates a location update request to the HSS to obtain user data.
  • Step 212 the HSS returns an MME location update response with user subscription data.
  • Step 213 The MME selects an appropriate SAE GW to initiate a session creation request to the SAE GW.
  • Step 215 MME to the eNodeB initiates an initial context setup request, with SAE GW ⁇ determined carrier Q 0 S.
  • Step 216 The eNodeB initiates an RRC link reconfiguration process to the UE, and negotiates related radio parameters with the UE to establish a bearer air interface resource.
  • Step 217 After the UE completes the bearer setup, the eNodeB RRC link reconfiguration is completed. Step 218, the eNodeB allocates S1 user plane information, and returns to the MME.
  • Step 219 The MME sends an update bearer request to the SAE GW, and sends the S1 user plane information of the eNodeB to the SAE GW.
  • step 220 the SAE GW returns a response.
  • Step 221 The MME allocates a temporary ID of the user, returns a registration response to the eNodeB, and has a temporary Id and a user IP address in the registration response. Step 221 can be sent to the eNodeB in a message with step 215.
  • Step 222 The eNodeB sends a registration response to the UE.
  • Step 223 After the UE saves the temporary Id and the user IP address, the UE returns to the eNodeB to register. to make.
  • Step 224 the eNodeB returns the registration completion to the MME.
  • the UE completes registration in the MME through LTE.
  • the main purpose of the present invention is to provide an access point and a terminal access method, which are used to solve the problem that a fixed network operator cannot re-deploy network elements such as MME, SAE GW, and HSS in a home environment.
  • An access point AP the AP includes:
  • An evolved base station eNodeB module configured to provide radio resource management for access of the terminal;
  • a mobility management entity MME module configured to perform mobility management locally, and connect to the eNodeB module;
  • the system structure evolution gateway SAE GW module is configured to perform user plane data routing processing locally, and is respectively connected to the eNodeB module and the MME module.
  • the eNodeB module is specifically configured to: receive a registration request sent by the terminal, forward the registration request to the MME module, and receive the default subscription data locally sent by the MME module, according to the locally configured default subscription data. Initiating a radio resource control RRC link reconfiguration process to the terminal, establishing an air interface bearer with the terminal; returning a registration response including the temporary identifier to the terminal;
  • the MME module is specifically configured to: process the registration request, obtain the default subscription data configured locally, and provide the locally configured default subscription data to the eNodeB module; Temporary identification and provision of a temporary identification to the eNodeB module.
  • the SAE GW module is further configured to: after the registration response is returned to the terminal, allocate a local IP address to the terminal, and feed back to the terminal together with the temporary identifier allocated by the MME module for the terminal; or
  • the SAE GW module is further configured to: after the registration response is returned to the terminal, use a dynamic host configuration protocol (DHCP) mode to obtain a local IP address for the terminal from the DHCP server, and feed the terminal to the terminal.
  • DHCP dynamic host configuration protocol
  • the MME module is further configured to send a protocol configuration selection (PCO) request message to the terminal by using the eNodeB module before initiating an RRC link reconfiguration process or after establishing an air interface bearer with the terminal;
  • PCO protocol configuration selection
  • the MME module is further configured to receive a username and a password fed back by the terminal, and provide the username and password to the SAE GW module.
  • the SAE GW module is further configured to determine, according to the locally configured username and password, whether the username and password returned by the terminal are correct, and if yes, continue the registration process; otherwise, the registration process is terminated and a registration rejection message is returned to the terminal.
  • the SAE GW module is further configured to initiate a dial-up connection to the fixed network, register to the fixed network, and obtain an external IP address, thereby establishing a channel for the AP to the fixed network. Transfer of user data.
  • the AP further includes:
  • a local configuration module configured to configure a working mode, and the working mode includes a home mode and a public mode;
  • the eNodeB module selects the MME module to implement the registration process of the terminal.
  • the eNodeB module is further configured to select an MME deployed by the operator to implement the registration process of the terminal.
  • a terminal access method is further provided, where the method is applied to include An access network of an access point of the eNodeB module, the MME module, and the SAE GW module, the method includes: providing radio resource management for access of the terminal by using the eNodeB module; performing mobility management locally by using the MME module; The SAE GW module performs user plane data routing processing locally.
  • An RRC connection is established between the AP and the terminal, and after the eNodeB module receives the registration request sent by the terminal, the registration request is forwarded to the MME module; the MME module obtains the locally configured default subscription data and configures the local configuration.
  • the default subscription data is provided to the eNodeB module; the eNodeB module initiates an RRC link reconfiguration process according to the default subscription data configured locally, and establishes an air interface bearer with the terminal;
  • the MME module allocates a temporary identifier to the terminal and provides the temporary identifier to the eNodeB module, and the eNodeB module returns a registration response including the temporary identifier to the terminal.
  • the method further includes:
  • the AP determines the working mode of the local configuration.
  • the AP selects the mobility management entity MME deployed by the operator to process the registration request of the terminal;
  • the locally configured working mode is the home mode,
  • the AP selects the locally configured MME module to process the registration request of the terminal, and the locally configured MME module initiates an RRC link reconfiguration process according to the locally configured default subscription data.
  • the method further includes the step of performing security mode negotiation with the terminal:
  • the AP sends a security mode command message, where the message indicates that the integrity algorithm is an empty algorithm, and the encryption algorithm is an empty algorithm;
  • the terminal After receiving the security mode command message, the terminal returns a security mode complete message.
  • the method further includes:
  • the SAE GW configured locally by the AP before the AP returns a registration response to the terminal.
  • the module allocates a local IP address to the terminal, and feeds back to the terminal along with the assigned temporary identifier.
  • the AP adopts a dynamic host configuration protocol (DHCP) mode, and the DHCP server allocates a local IP address to the terminal. address.
  • DHCP dynamic host configuration protocol
  • the method further includes: after the AP initiates an RRC link reconfiguration process, or after the air interface bearer is established between the AP and the terminal, the method further includes:
  • the AP sends a protocol configuration selection PCO request message to the terminal, requesting the user name and password of the user, and after receiving the PCO request message, the terminal returns a username and password to the AP; the AP determines the terminal to return according to the locally configured username and password. The username and password are correct. If correct, continue the registration process. Otherwise, the registration process is terminated and a registration rejection message is returned to the terminal.
  • the method further includes:
  • the terminal After receiving the registration response message sent by the AP, the terminal sends a registration completion message to the AP, after the AP receives the registration completion message, when the AP detects that the terminal has user data to be sent, the The AP initiates a dial-up connection to the fixed network, registers with the fixed network, and obtains an external IP address, thereby establishing a channel of the AP to the fixed network for transmitting user data.
  • the AP provided by the present invention includes an eNodeB module, an MME module, and a SAE GW module. Based on the AP, a simplified wireless access system can be implemented. In this system, the operator does not need to create a network element such as MME ⁇ SAE GW ⁇ HSS.
  • the invention is based on the access method provided by the AP, and can also provide LTE service for the user, and the AP can directly replace the existing wireless local access network (WLAN) wireless router in the home mode, and can save Carrier IP address.
  • WLAN wireless local access network
  • 1 is a schematic diagram of LTE and EPC architecture of GPRS defined by 3GPP;
  • Figure 2 shows the registration process of users in LTE in the existing architecture
  • FIG. 3 is a schematic structural diagram of a wireless access system according to an embodiment of the present disclosure
  • 4 is a schematic structural diagram of an internal function module of an AP according to an embodiment of the present disclosure
  • FIG. 5 is a flowchart of a method for accessing a terminal according to an embodiment of the present invention. detailed description
  • the basic idea of the present invention is to provide an access point (AP), which is configured with a base station eNodeB function module, a mobility management entity MME function module, and a system structure evolution gateway SAE GW function module.
  • the default configuration data is provided by the local configuration module.
  • the AP establishes an RRC connection between the terminal and the AP based on the default subscription data, and assigns a local IP address to the terminal.
  • the AP initiates the connection to the fixed network.
  • a dial-up connection obtains an external IP address from a fixed network to establish a data channel between the terminal and the fixed network.
  • the operator does not need to deploy the core network elements such as the MME, the SGW GW, and the HSS, which simplifies the network and reduces the cost of the operator.
  • FIG. 3 is a schematic diagram of a network architecture of a radio access system 300 implemented by an AP according to an embodiment of the present invention.
  • multiple terminals are wirelessly accessed by the LTE to the AP 300 provided by the present invention, and the AP 300 A local IP address is assigned to the terminals, and the terminal accesses the fixed network 301 through the dial-up to complete the Internet access process of the terminal through the AP.
  • FIG. 4 is a schematic structural diagram of an internal function module of an AP according to an embodiment of the present disclosure, where the AP 400 includes:
  • the evolved base station module 401 that is, the eNodeB module, is configured to provide radio resource management for the terminal access network, and the functions include: establishing an RRC connection with the terminal, and processing an RRC link reconfiguration process to establish an air interface bearer, and the module separately and locally
  • the MME module and the local SAE GW module are connected to each other;
  • the mobility management entity module 402 that is, the MME module, is configured to perform mobility management locally, The functions include: managing and storing the terminal context, processing the terminal registration request, initiating the security mode negotiation process, assigning the temporary identification ID to the user, and obtaining the local default subscription data; the module is respectively connected to the eNodeB module 401 and the SAE GW module 403. ;
  • the system structure evolution gateway module 403 that is, the SAE GW module, is configured to perform user plane data routing processing locally, and the functions include: allocating a local IP to the terminal, initiating a dial-up connection to the fixed network, initiating a registration process to the fixed network, and acquiring an external IP address. Address, establishing a channel of the AP to the fixed network; the module is respectively connected to the eNodeB module 401, the MME module 402, and the fixed network interface;
  • the AP further includes a local configuration module 404, configured to configure local default subscription data, a user and a password, and a working mode, where the module is respectively connected to the eNodeB module 401, the MME module 402, and the SAE GW module 403;
  • the modes of operation include a home mode and a public mode. In the home mode, the eNodeB module 401 of the AP selects the local MME module 402 to complete the registration process of the terminal, and the SAE GW module 403 establishes a channel to the fixed network according to the local default subscription data.
  • the AP As the registration process of the normal eNodeB execution terminal, the MME module 402 and the SAE GW module 403 do not function, and the eNodeB module 401 selects the MME deployed by the operator to complete the registration process of the terminal.
  • FIG. 5 is an access process implemented by an AP according to the present invention.
  • the process includes a process of registering a terminal with an AP and a process of registering a fixed network with an AP to an operator.
  • the specific steps are as follows:
  • Step 501 After the terminal is powered on, the LTE module of the terminal finds that the user is in the LTE coverage, and the LTE module selects a suitable cell. If the terminal selects the LTE cell provided by the AP of the present invention, the terminal initiates a radio resource control RRC establishment request to the corresponding AP. After the RRC connection is established, the terminal sends a registration request to the AP, and the eNodeB module of the AP forwards the registration request to the MME module, where the registration request carries the permanent user identifier IMSI of the user;
  • Step 502 optionally, if the AP provided by the embodiment of the present invention provides the working mode selection, the eNodeB module of the AP checks the working mode configuration of the local configuration module, if the current working mode In the public mode, the AP is the same as the normal eNodeB, and the MME of the carrier is selected, and then the registration request is forwarded to the MME of the selected carrier.
  • the subsequent registration procedure is as shown in FIG. 2, which is a prior art, and is not described here. If the current working mode is the home mode, the AP selects its own MME module to process the registration request of the terminal; the following steps 503 to 511 are the registration process in the home mode;
  • Step 503 In the home mode, the registration process of the embodiment of the present invention cancels the authentication process of the 3GPP, that is, the MME module in the AP of the present invention does not initiate an authentication request process to the terminal; the MME module of the AP receives the registration request sent by the terminal. Afterwards, the security mode negotiation process is initiated actively;
  • the MME module sends a security mode command message to the terminal via the eNodeB module, where the integrity algorithm is EIA0 (empty algorithm) and the encryption algorithm is EEA0 (empty algorithm), that is, there is no terminal between the terminal and the AP. Integrity protection and encryption.
  • the key can be negotiated between the UE and the AP in other ways to ensure integrity protection and encryption between the terminal and the AP.
  • Step 504 After receiving the security mode command message, the terminal adopts the negotiated security mode, and returns a security mode completion message.
  • Step 505 the MME module of the AP initiates a Protocol Configuration Option (PCO) request message to the terminal via the eNodeB module, and requests the user name and password of the user.
  • PCO Protocol Configuration Option
  • Step 506 optionally, the terminal returns a username and a password, and the MME module of the AP sends the MME module to the SAE GW module.
  • the SAE GW module checks whether the username and password are correct according to the username and password configured in the local configuration module. If yes, continue to register. The process terminates the registration process if an error occurs, and returns a registration rejection message to the terminal, and the process is terminated.
  • Step 507 the registration process of the embodiment of the present invention cancels the MME acquiring the context process from the HSS, and instead, the eNodeB module forwards the registration request to the MME module, and the MME module obtains the local preset default or default subscription data from the local configuration module. For example, the access point name and the corresponding quality of service QoS information, etc., after the AP's eNodeB module is based on the MME mode.
  • the default subscription data provided by the block initiates an RRC link reconfiguration request to the terminal, and configures relevant radio parameters according to the default quality of service QoS parameters to establish an air interface bearer.
  • Step 508 After completing the bearer establishment, the terminal returns an RRC link reconfiguration complete message to the eNodeB module of the AP.
  • Step 509 The RRC link reconfiguration complete message triggers the SAE GW module of the AP to allocate a local IP address to the terminal, and the MME module of the AP allocates a temporary identifier (ID) to the terminal, and then sends a registration response to the terminal through the eNodeB module, where the registration response message is carried.
  • ID temporary identifier
  • Step 510 The terminal saves the temporary ID and the local IP address allocated by the AP for the terminal, and returns a registration completion message to the AP to confirm the completion of the registration process.
  • the wireless connection between the terminal and the AP is established.
  • the user local IP address may also be obtained during the registration process, or may be obtained by the UE from the DHCP server after the registration process, and the DHCP server address is configured by the UE itself.
  • the DHCP server can be physically associated with the AP behind the SAE GW. For example, in step 509, the AP only feeds back the temporary ID.
  • the terminal performs DHCP interaction with the SAE GW module of the AP to obtain a local IP address from the DHCP server.
  • the authentication process of the terminal in step 505 and step 506 may also be performed after the RRC wireless connection is established.
  • the terminal sends the username and password to the AP through the connection. If the AP checks that the username and password are correct, the registration process is maintained. Incorrect, the registration process is initiated.
  • Step 511 When the AP detects that the user data needs to be sent by the terminal, the SAE GW module of the AP obtains the user name and password from the local configuration module, initiates a dial-up connection to the fixed network, and registers with the fixed network to obtain the external IP address of the AP. The AP's channel to the fixed network.
  • the terminal can access the AP through the LTE wireless network and communicate with other users through the fixed network by using the external IP address.
  • the user terminal can directly establish an IP connection with the fixed network of the operator through the AP, and the operator does not need to deploy the core network such as the MME, the SGW GW, and the HSS. yuan.
  • the present invention does not need to be modified on the terminal side.
  • the eNodeB can access the public network.
  • the AP can be accessed by the AP provided in the embodiment of the present invention to reduce the network. Application costs.
  • the AP provided by the embodiment of the present invention has a home mode and a public mode.
  • the AP is equivalent to the eNodeB.
  • the AP has the function of the eNodeB ⁇ MME ⁇ SAE GW, which simplifies the access network and reduces the access network. Delay.
  • the AP provided by the embodiment of the present invention can directly replace the WLAN wireless router in the home, and the user is simple and convenient to use.
  • the invention can provide LTE service for users, and at the same time, the AP can directly replace the wireless router of the existing wireless local area network WLAN in the home mode, and can save the operator's IP address.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un point d'accès et un procédé d'accès par un terminal, destinés à résoudre le problème posé par le fait qu'il n'est pas possible de fournir un signal sans fil LTE à l'utilisateur final LTE si les opérateurs du réseau fixe ne redéployent pas des éléments du réseau tels que MME, SAE GW et HSS, etc. dans un environnement de rattachement. Le point d'accès selon la présente invention comprend un module eNodeB, un module MME et un module SAE GW. Un système d'accès sans fil simplifié peut être réalisé à partir de ce point d'accès, si bien que les opérateurs n'ont pas besoin d'établir à nouveau des éléments du réseau tels que MME/SAE GW/HSS, etc. Le procédé d'accès fourni à partir de ce point d'accès, dans la présente invention, peut également fournir un service LTE à l'utilisateur. Simultanément, en mode de réseau de rattachement, le point d'accès peut remplacer le routeur sans fil directement dans les réseaux locaux sans fil existants, ce qui économise des adresses IP pour les opérateurs.
PCT/CN2012/073134 2011-03-28 2012-03-27 Point d'accès et procédé d'accès par un terminal WO2012130133A1 (fr)

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CN201110075546.XA CN102711275B (zh) 2011-03-28 2011-03-28 一种接入点及终端接入方法
CN201110075546.X 2011-03-28

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CN107615826B (zh) 2015-12-24 2020-07-28 华为技术有限公司 无线通信网络中确定网络制式的方法、接入点设备、终端设备和无线网络控制器
CN111093262A (zh) * 2019-07-31 2020-05-01 中兴通讯股份有限公司 一种实现5g用户注册的方法、网元设备及存储介质

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