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A service gateway selection method and system for a terminal group
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A service gateway and terminal group technology, applied in the field of machine type communication, can solve the problem of inability to control the selection and control of the terminal group S-GW, and achieve the effect of optimizing the amount of messages
Inactive Publication Date: 2018-03-23
ZTE CORP
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[0009] In view of this, the main purpose of the present invention is to provide a method and system for selecting a serving gateway S-GW of a terminal group, which is used to solve the technical problem that the S-GW selection of a terminal group cannot be effectively controlled in the MTC service
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Embodiment 1
[0056] Embodiment 1 (the group representative terminal is designated by the network):
[0057] Step 101. When a terminal is connected to the network, the terminal group user signs each terminal in the group as a terminal with group characteristics, and the operator assigns a group identity (Group Identity) to the terminal group, and uses the assigned terminal group identity as the terminal's contract Data is stored in HSS (Home Subscriber Server).
[0058] Step 102, after the terminal is powered on, it sends an attach request to the MME (Mobility Management Entity), which includes the terminal identity and security certificate.
[0059] Step 103: After the MME authenticates the terminal ID and the security certificate, it requests the subscription data of the terminal from the HSS through an update location request message, which includes the terminal ID, such as IMSI (International Mobile Subscriber Identity).
[0060] Step 104: After receiving the request from the MME, the ...
Embodiment 2
[0072] Embodiment 2 (the group representative terminal is set by the MTC user and the operator by signing a contract):
[0073] Step 201. When a terminal is connected to the network, the terminal group user signs each terminal in the group as a terminal with group characteristics, the operator assigns a group identifier to the terminal group, and the MTC user signs with the operator to set a group representative terminal, and The assigned terminal group ID and the set group representative terminal ID are stored in the HSS as terminal subscription data.
[0074] In specific implementation, an identifier may be added to the stored information of the HSS to indicate the group representative terminal, such as a group representative terminal identifier (GRUEI).
[0075] Step 202. After the terminal is turned on, it sends an attach request to the MME, which includes the terminal identifier and security certificate.
[0076] Step 203, after the MME has authenticated the terminal ID ...
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Abstract
The invention discloses a service gateway selection method and system for a terminal group, which is used to solve the technical problem that the S-GW selection of the terminal group cannot be effectively controlled in the MTC service. The scheme is: store the terminal group identifier in the HSS as the subscription data; after the HSS receives the subscription data request from the MME, it judges whether the current terminal is a group representative terminal, which is designated by the network or by the MTC user and the operator when signing a contract Specify; if the current terminal is a group representative terminal, the MME selects the service gateway S-GW for the terminal through the service gateway selection function, and notifies the HSS of the selected S-GW as the group representative S-GW; if the current terminal is a non-group To represent a terminal, the HSS provides the group representative S-GW identifier to the MME; the MME requests the group representative S-GW to establish a default bearer for the current terminal. Through the present invention, in the MTC service with group characteristics, the network can control the S-GW selection of the terminal group, so that the terminals in the same terminal group select the same S-GW.
Description
technical field [0001] The present invention relates to Machine Type Communication (MTC, Machine Type Communication) technology, in particular to a method and system for selecting a Serving Gateway (S-GW, Serving Gateway) of a terminal group. Background technique [0002] figure 1 It is a schematic structural diagram of a traditional cellular wireless communication system, such as figure 1 As shown, the cellular wireless communication system is mainly composed of a core network (CN, Core Network), an access network (RAN, Radio Access Network), and terminals. Among them, the CN is responsible for non-access stratum affairs, such as: terminal location update, etc., and is the anchor point of the user plane. RAN includes: base station, or base station and base station control. RAN is responsible for access layer affairs, such as: management of wireless resources, etc. There may be physical or logical connections between base stations according to actual conditions, such as f...
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Application Information
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