WO2013078965A1 - 一种核心网设备的选择方法和设备 - Google Patents

一种核心网设备的选择方法和设备 Download PDF

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Publication number
WO2013078965A1
WO2013078965A1 PCT/CN2012/085160 CN2012085160W WO2013078965A1 WO 2013078965 A1 WO2013078965 A1 WO 2013078965A1 CN 2012085160 W CN2012085160 W CN 2012085160W WO 2013078965 A1 WO2013078965 A1 WO 2013078965A1
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Prior art keywords
network device
core network
mtc
group identifier
pool
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PCT/CN2012/085160
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English (en)
French (fr)
Inventor
段江海
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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Application filed by Datang Mobile Communications Equipment Co Ltd filed Critical Datang Mobile Communications Equipment Co Ltd
Priority to US14/359,581 priority Critical patent/US9351210B2/en
Priority to JP2014541530A priority patent/JP6012746B2/ja
Priority to KR1020147013516A priority patent/KR101563444B1/ko
Priority to EP12854155.4A priority patent/EP2768260B1/en
Publication of WO2013078965A1 publication Critical patent/WO2013078965A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/18Selecting a network or a communication service
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/11Allocation or use of connection identifiers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/02Access restriction performed under specific conditions
    • H04W48/06Access restriction performed under specific conditions based on traffic conditions
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/22Processing or transfer of terminal data, e.g. status or physical capabilities

Definitions

  • the invention relates to a method and a device for selecting a core network device.
  • Priority is hereby incorporated by reference in its entirety.
  • the present application relates to the field of communications technologies, and in particular, to a method and a device for selecting a core network device. Background technique
  • FIG. 1 is a schematic diagram of an MTC UE accessing a 3G mobile communication network and a 4G mobile communication network, respectively.
  • the Non-MTC UE refers to a Human to Human (H2H) communication UE, and the Non-MTC UE and the Packet Data Network (PDN) after being assigned an IP address. Establishing an IP channel between the two, so as to implement upper-layer service communication with the PDN; similarly, after the IP address is assigned, the MTC UE establishes an IP channel with the MTC server, thereby implementing an interaction with the MTC server.
  • H2H Human to Human
  • PDN Packet Data Network
  • the IP channel established between the MTC UE and the MTC server is a logical IP channel.
  • the physical path will pass through the base station (Node B) and the radio network controller. (Radio Network Controller, RNC) and Gateway GPRS Support Node (GGSN);
  • RNC Radio Network Controller
  • GGSN Gateway GPRS Support Node
  • the physical path will pass through Evolved Node B (e-Node). B, ie, the base station), the Serving Gateway (SGW), and the Packet Data Gateway (PGW).
  • e-Node Evolved Node B
  • B ie, the base station
  • SGW Serving Gateway
  • PGW Packet Data Gateway
  • M2M communication compared with H2H communication, M2M communication has significant differences in service characteristics, such as M2M communication has a large number of MTC UEs, and MTC UEs usually have a lower amount of data and the like.
  • M2M communication has a large number of MTC UEs, and MTC UEs usually have a lower amount of data and the like.
  • an automatic meter reading system installed in a residential home requires a large number of MTC UEs to be distributed in a small area, and the amount of data per MTC UE per day does not exceed several hundred bits.
  • the inventors have found that at least the following problems exist in the prior art: when the UE accesses the mobile communication network, the access network (such as Node B, e-Node B) and the core network of the mobile communication network (for example, GGSN and PGW need to allocate bearer resources for each UE (such as MTC UE) and establish corresponding binding relationships.
  • the MTC UE When the MTC UE is deployed in a large amount and accesses the mobile communication network, it will occupy a large amount of network resources, and there will be a large amount of signaling overhead, which may result in the mobile communication network being unable to be used normally or affecting H2H communication. Summary of the invention
  • the embodiments of the present application provide a method and a device for selecting a core network device to save network resources and reduce signaling overhead.
  • the embodiment of the present application provides a method for selecting a core network device, including:
  • the access network device determines the device type of the user equipment UE
  • the access network device determines an MTC group identifier corresponding to the UE;
  • the access network device selects the MTC group identifier.
  • the core network device corresponding to the MTC group identifier is used as the core network device accessed by the UE.
  • An embodiment of the present application provides an access network device, including:
  • a first determining module configured to determine a device type of the user equipment UE
  • a second determining module configured to: when the device type is a machine type communication MTC UE, determine an MTC group identifier corresponding to the UE;
  • the selecting module is configured to: when the MTC group identifier corresponds to the core network device, select the core network device corresponding to the MTC group identifier as the core network device accessed by the UE.
  • Multiple MTC UEs corresponding to the same MTC group identifier may be selected to select the same core network device
  • the standby access to the mobile communication network can further save network resources and reduce signaling overhead by using the public bearer.
  • FIG. 1 is a schematic diagram of an MTC UE accessing a 3G mobile communication network in the prior art
  • FIG. 2 is a schematic diagram of a MTC UE accessing a 4G mobile communication network in the prior art
  • FIG. 3 is a core network provided in Embodiment 1 of the present application; Schematic diagram of the selection method of the device;
  • FIG. 4 is a schematic structural diagram of an access network device according to Embodiment 2 of the present application. detailed description
  • the first embodiment of the present application provides a method for selecting a core network device.
  • the access network device selects a core network device for the accessed UE.
  • the method may be applicable to the MTC UE.
  • the core network device may be a Serving GPRS Supporting Node (SGSN), and the access network device may be an RNC
  • the core network device may be a Mobility Management Entity (MME), and the access network device may be an e-Node B.
  • MME Mobility Management Entity
  • the method for selecting the core network device includes the following steps:
  • Step 301 The access network device (RNC or e-Node B) determines the device type of the UE.
  • the access network device needs to determine the device type of the UE, and the device type of the UE may be Non-MTC. If the device type of the UE is a non-MTC UE, step 302 is performed; when the device type of the UE is an MTC UE, step 303 is performed.
  • Step 302 The access network device selects a core network device (such as an SGSN or an MME) to be accessed by the UE, and the selection mode is implemented in the existing manner, and is not repeatedly described in the embodiment of the present application.
  • a core network device such as an SGSN or an MME
  • Step 303 The access network device determines an MTC group identifier corresponding to the UE.
  • the MTC UEs may be grouped into an MTC group and differentiated by using the MTC group identifier. Therefore, when determining that the UE is an MTC UE, the access network device may The MTC group identifier corresponding to the MTC UE is determined.
  • the core network device GGSN or SGW of the 3G mobile communication network or the 4G mobile communication network may allocate bearer resources according to the MTC group identifier, and the MTC UE may access the 3G mobile communication network or 4G.
  • the bearer resources corresponding to the MTC group to which it belongs are used to solve the problem that a large number of network resources are occupied when a large number of MTC UEs access the 3G mobile communication network or the 4G mobile communication network.
  • Step 304 The access network device determines whether the MTC group identifier has a corresponding core network device. When the MTC group identifier corresponds to the core network device, step 305 is performed. When the MTC group identifier does not correspond to the core network device, step 306 is performed. .
  • the access network device also needs to maintain the correspondence between the MTC group identifier and the core network device. It is to be noted that, based on the correspondence, for the MTC UE accessing the mobile communication network in the MTC group, the MTC UE may determine that the MTC group identifier does not correspond to the core network device; The group is not the first MTC UE to access the mobile communication network. During the access process of the MTC UE, it can be determined that the MTC group identifier corresponds to the core network device.
  • Step 305 The access network device selects a core network device corresponding to the MTC group identifier as the core network device accessed by the UE.
  • UE1, UE2, and UE3 are all MTC UEs, and UE1, UE2, and UE3 are composed.
  • the MTC group is identified by using the MTC group identifier A. It is assumed that the UE1 first accesses the mobile communication network, and the core network device selected by the access network device for the UE1 is the core network device A; then when the UE2 accesses the mobile communication network It is determined that the MTC group identifier A corresponding to UE2 has a corresponding core network device A, and the access network device selects the core network device A as the core network device accessed by UE2; for the type, the access network device will also select the The core network device A serves as the core network device accessed by the UE3.
  • Step 306 The access network device selects the core network device as the core network device accessed by the UE from the core network device pool, and records the correspondence between the MTC group identifier corresponding to the UE and the selected core network device.
  • the access network device selects the core network device from the core network device pool as the core network device that the UE accesses, including: the access network device uses the core network device Pool (such as SGSN Pool or MME Pool)
  • the weight of the core network device and the preset policy the core network device is selected from the core network device pool as the core network device accessed by the UE in the MTC group.
  • the preset policy may be: making the selection probability of each core network device proportional The weight of each core network device.
  • a core network device is usually organized in a pool manner; when a UE accesses a 3G mobile communication network or a 4G mobile communication network, the access network device firstly accesses the core network device.
  • the pool determines the core network device to be accessed for the UE; after that, the selected core network device requests the GGSN or the SGW to allocate the bearer resource, and notifies the access network device of the allocation result of the GGSN or the SGW;
  • a bearer resource is allocated to the UE, and a binding relationship is established.
  • the core network device notifies the GGSN or the SGW of the allocation result, and the GGSN or the SGW establishes a binding relationship.
  • the access network device selects the core network device from the core network device pool as the core network device that the UE accesses, and specifically: the access network device is configured from the core network device pool according to the load balancing principle.
  • the UE determines the core network device to access. Specifically, each core network device in the core network device pool allocates a weight according to its capacity, and the access network device selects the core network device according to the weight, so that the selection probability of each core network device is proportional to the weight, thereby Load balancing between core network devices in the core network device pool.
  • the embodiment of the present application has at least the following advantages:
  • the selection process of the core network device does not distinguish the UE type, and does not distinguish the MTC group to which the MTC UE belongs;
  • the MTC UEs are evenly distributed on the core network devices in the core network device pool. Since the bearer allocation process of the core network is triggered by the selected core network device, the existing MTC group cannot be implemented in the prior art.
  • the MTC UE uses the requirements of the public core network to carry resources.
  • the MTC UE accesses the core network and occupies a large number of networks. The problem of resources.
  • the access network device in the networking mode of the core network device, the access network device needs to consider the device type of the UE (such as the MTC UE or It is a non-MTC UE and information such as the MTC group identifier to which the MTC UE belongs, so that when a large number of MTC UEs access the 3G mobile communication or the 4G mobile communication network, the problem of occupying a large amount of core network resources is solved; and the same MTC group can be made.
  • the identified multiple MTC UEs select the same core network device to access the mobile communication network, and thus can save network resources and reduce signaling overhead by using the common bearer.
  • the embodiment of the present application further provides an access network device.
  • the device includes:
  • the first determining module 11 is configured to determine a device type of the user equipment UE;
  • the second determining module 12 is configured to: when the device type is a machine type communication MTC UE, determine an MTC group identifier corresponding to the UE;
  • the selecting module 13 is configured to: when the MTC group identifier corresponds to the core network device, select the core network device corresponding to the MTC group identifier as the core network device accessed by the UE.
  • the first determining module 11 is specifically configured to determine, after the UE accesses the mobile communication network, a device type of the UE, where the device type of the UE is a Non-MTC UE or an MTC UE.
  • the selecting module 13 is further configured to: when the MTC group identifier does not correspond to the core network device, select a core network device from the core network device pool pool as the core network accessed by the UE. Equipment.
  • the selection module 13 is further configured to use the weights of the core network devices in the core network device pool and the preset policy to select the core network device as the core network device accessed by the UE from the core network device pool.
  • the strategy is to ensure that the selection probability of each core network device is proportional to the weight of each core network device.
  • the access network device may further include: a recording module, configured to record, after the core network device is selected as the core network device accessed by the UE, from the core network device pool, The corresponding relationship between the MTC group identifier and the selected core network device.
  • a recording module configured to record, after the core network device is selected as the core network device accessed by the UE, from the core network device pool, The corresponding relationship between the MTC group identifier and the selected core network device.
  • the modules of the device of the present application may be integrated into one or may be deployed separately.
  • the above modules can be combined into one module, or can be further split into multiple modules.
  • the present application also provides a computer readable recording medium on which a program for executing the selection method of the above-described core network device is recorded.
  • a program for executing the selection method of the above-described core network device is recorded.
  • the computer readable recording medium includes any mechanism for storing or transmitting information in a form readable by a computer (e.g., a computer).
  • a machine-readable medium includes a read only memory (ROM), a random access memory (RAM), a magnetic disk storage medium, an optical storage medium, a flash storage medium, an electrical, optical, acoustic, or other form of propagated signal (eg, a carrier wave) , infrared signals, digital signals, etc.).
  • modules in the apparatus in the embodiment may be distributed in the apparatus of the embodiment according to the description of the embodiment, or may be changed according to the actual implementation. In one or more devices of the embodiment.
  • the modules of the above embodiments may be combined into one module, or may be further split into multiple modules.

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Abstract

一种核心网设备的选择方法和设备,该方法包括:接入网设备确定用户设备UE的设备类型;当所述设备类型为机器类通信MTC UE时,所述接入网设备确定所述UE对应的MTC组标识;当所述MTC组标识对应有核心网设备时,所述接入网设备选择所述MTC组标识对应的核心网设备作为所述UE接入的核心网设备。本申请实施例中,可以使得对应同一MTC组标识的多个MTC UE选择同一个核心网设备接入移动通信网络,进而可以通过使用公用承载,节省网络资源,降低信令开销。

Description

说 明 书
一种核心网设备的选择方法和设备 本申请要求在 2011 年 12 月 1 日提交中国专利局、 申请号为 201110392941.0、 发明名称为 "一种核心网设备的选择方法和设备" 的 中国专利申请的优先权, 其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域, 尤其涉及一种核心网设备的选择方法和 设备。 背景技术
机器到机器 (Machine to Machine , M2M ) 通信也称为机器类通信 ( Machine Type Communication, MTC ), 可广泛应用于智能交通、 远程 抄表、 医疗卫生、 视频监控、 智能家居、 智能电网等领域。 参与 M2M通 信的设备为 MTC用户设备(MTC User Equipment, MTC UE ), 提供 M2M 服务的网络实体为 MTC服务器; MTC服务器通过移动通信网络与 MTC UE通信, 从而实现对 MTC UE的管理和监控。 如图 1和图 2所示, 分别为 MTC UE接入 3G移动通信网络、 4G移动通信网络的示意图。
在图 1和图 2中, Non-MTC UE是指人对人 ( Human to Human, H2H ) 通信的 UE, Non-MTC UE在被分配 IP地址后, 会与分组数据网络( Packet Data Network , PDN )之间建立起 IP通道, 从而实现与 PDN之间的上层业 务通信; 类似地, MTC UE在被分配 IP地址后, 会与 MTC服务器之间建立 起 IP通道, 从而实现与 MTC服务器之间的上层业务通信。
需要注意的是, MTC UE与 MTC服务器之间建立的 IP通道为逻辑上的 IP通道,如图 1所示,对于 3G移动通信网络,其物理路径将经过基站(Node B )、 无线网络控制器 ( Radio Network Controller, RNC ) 和网关 GPRS支 持节点 (Gateway GPRS Support Node, GGSN ); 如图 2所示, 对于 4G移 动通信网络,其物理路径将经过演进型节点8( Evolved Node B, e-Node B, 即基站)、服务网关( Serving Gateway, SGW )和分组数据网关( Packet Data Gateway, PGW )。 此外, 与 H2H通信相比, M2M通信在业务特点上具有显著差异, 如 M2M通信具有大量的 MTC UE, 且 MTC UE通常具有较低的数据量等。 例 如, 小区居民家中安装的自动抄表系统, 在小范围内需要分布大量 MTC UE, 而每个 MTC UE每天的数据量不超过几百比特。
在实现本申请的过程中, 发明人发现现有技术中至少存在以下问题: UE在接入移动通信网络时, 移动通信网络的接入网 (如 Node B、 e-Node B ) 和核心网 (如 GGSN、 PGW ) 需要针对每个 UE (如 MTC UE ) 分配承载资源, 并建立相应的绑定关系。 当 MTC UE大量部署并接入移动 通信网络时, 会占用大量的网络资源, 且会存在大量的信令开销, 从而 导致移动通信网络无法正常使用或者对 H2H通信造成影响。 发明内容
本申请实施例提供一种核心网设备的选择方法和设备, 以节省网络 资源, 降低信令开销。
为了达到上述目的, 本申请实施例提供一种核心网设备的选择方法, 包括:
接入网设备确定用户设备 UE的设备类型;
当所述设备类型为机器类通信 MTC UE时, 所述接入网设备确定所 述 UE对应的 MTC组标识;
当所述 MTC组标识对应有核心网设备时, 所述接入网设备选择所述
MTC组标识对应的核心网设备作为所述 UE接入的核心网设备。
本申请实施例提供一种接入网设备, 包括:
第一确定模块, 配置为确定用户设备 UE的设备类型;
第二确定模块, 配置为当所述设备类型为机器类通信 MTC UE时, 确定所述 UE对应的 MTC组标识;
选择模块, 配置为当所述 MTC组标识对应有核心网设备时 , 选择所 述 MTC组标识对应的核心网设备作为所述 UE接入的核心网设备。 与现有技术相比, 本申请实施例至少具有以下优点:
可以使得对应同一 MTC组标识的多个 MTC UE选择同一个核心网设 备接入移动通信网络, 进而可以通过使用公用承载, 节省网络资源, 降 低信令开销。 附图说明
为了更清楚地说明本申请的技术方案, 下面将对实施例描述中所需 要使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅是本 申请的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳 动的前提下, 还可以根据这些附图获得其他的附图。
图 1是现有技术中 MTC UE接入 3G移动通信网络的示意图; 图 2是现有技术中 MTC UE接入 4G移动通信网络的示意图; 图 3 是本申请实施例一提供的一种核心网设备的选择方法流程示意 图;
图 4是本申请实施例二提供的一种接入网设备的结构示意图。 具体实施方式
下面将结合本申请中的附图, 对本申请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申请的一部分实施例, 而不 是全部的实施例。 基于本申请中的实施例, 本领域普通技术人员在没有 做出创造性劳动前提下所获得的所有其他实施例, 都属于本申请保护的 范围。
实施例一
本申请实施例一提供一种核心网设备的选择方法,在 UE接入到移动 通信网络的过程中, 由接入网设备为接入的 UE选择核心网设备; 该方法 可以适用于 MTC UE接入 3G移动通信网络或 MTC UE接入 4G移动通信 网络等应用场景; 在 3G移动通信网络中, 核心网设备可以为服务 GPRS 支持节点 (Serving GPRS Supporting Node, SGSN ), 接入网设备可以为 RNC ; 在 4G 移动通信网络中, 核心网设备可以为移动性管理实体 ( Mobility Management Entity, MME ), 接入网设备可以为 e-Node B。
如图 3所示, 该核心网设备的选择方法包括以下步骤:
步骤 301 , 接入网设备 ( RNC或 e-Node B ) 判断 UE的设备类型。 本申请实施例中, 当 UE接入到移动通信网络(如 3G移动通信网络 或 4G 移动通信网络) 后, 该接入网设备需要判断 UE 的设备类型, 该 UE的设备类型可以为 Non-MTC UE或者 MTC UE; 当 UE的设备类型为 Non-MTC UE时, 执行步骤 302; 当 UE的设备类型为 MTC UE时, 执行 步骤 303。
步骤 302, 接入网设备为 UE选择接入的核心网设备(如 SGSN或 MME ), 该选择方式可以按照现有方式实现, 本申请实施例中不再赘述。
步骤 303, 接入网设备确定 UE对应的 MTC组标识。
在实际应用中, 如果若干个 MTC UE具有相同的管理属性, 则可以 将这些 MTC UE组成 MTC组, 并使用 MTC组标识进行区分; 因此, 当 确定 UE为 MTC UE时,该接入网设备可以确定该 MTC UE所对应的 MTC 组标识。
本申请实施例中, 基于 MTC组标识, 3G移动通信网络或 4G移动通 信网络的核心网络设备 GGSN或 SGW, 可以按照 MTC组标识分配承载 资源 , 且 MTC UE可以在接入 3G移动通信网络或 4G移动通信网絡时, 使用其所属的 MTC组所对应的承载资源,以此解决大量 MTC UE接入到 3G移动通信网络或 4G移动通信网络时占用大量网络资源的问题。
步骤 304,接入网设备判断该 MTC组标识是否有对应的核心网设备; 当 MTC组标识对应有核心网设备时, 执行步骤 305; 当 MTC组标识未 对应有核心网设备时, 执行步骤 306。
本申请实施例中, 针对每个 MTC 组标识, 接入网设备还需要维护 MTC组标识与和核心网设备之间的对应关系。 需要注意的是, 基于该对 应关系,对于 MTC组内第一个接入移动通信网絡的 MTC UE,该 MTC UE 的接入过程中,可以判断出 MTC组标识未对应有核心网设备;对于 MTC 组内不是第一个接入移动通信网络的 MTC UE, 该 MTC UE的接入过程 中, 可以判断出 MTC组标识对应有核心网设备。
步驟 305 , 接入网设备选择 MTC组标识对应的核心网设备作为 UE 接入的核心网设备。
例如, UE1、 UE2和 UE3均为 MTC UE, 且 UE1、 UE2和 UE3组成 MTC组, 并使用 MTC组标识 A进行区分; 假设 UE1第一个接入移动通 信网络, 且接入网设备为 UE1选择的核心网设备为核心网设备 A; 则在 UE2接入移动通信网络时, 会判断出 UE2对应的 MTC组标识 A有对应 的核心网设备 A, 且接入网设备选择该核心网设备 A作为 UE2接入的核 心网设备; 类型的 , 接入网设备还将选择该核心网设备 A作为 UE3接入 的核心网设备。
步驟 306 , 接入网设备从核心网设备池( Pool ) 中选择核心网设备作 为 UE接入的核心网设备, 并记录 UE对应的 MTC组标识与选择的核心 网设备之间的对应关系。
本申请实施例中, 接入网设备从核心网设备 Pool中选择核心网设备 作为 UE接入的核心网设备, 包括: 接入网设备利用核心网设备 Pool (如 SGSN Pool或 MME Pool )中各核心网设备的权重以及预设策略, 以 MTC 组为单位从核心网设备 Pool中选择核心网设备作为 UE接入的核心网设 备, 该预设策略可以为: 使得各核心网设备的选择概率正比于各核心网 设备的权重。
具体的, 在 3G移动通信网络或 4G移动通信网络中, 核心网设备通 常以 Pool的方式进行组织; UE在接入 3G移动通信网络或 4G移动通信 网絡时, 接入网设备首先从核心网设备 Pool中为 UE确定接入的核心网 设备; 之后, 由所选择的核心网设备请求 GGSN或 SGW分配承载资源, 并将 GGSN或 SGW的分配结果通知给接入网设备; 之后,接入网设备为 UE分配承载资源, 建立绑定关系, 并经过核心网设备将其分配结果通知 给 GGSN或 SGW, 由 GGSN或 SGW建立绑定关系。
在上述的具体实现过程中, 接入网设备从核心网设备 Pool中选择核 心网设备作为 UE接入的核心网设备, 具体可以为: 接入网设备根据负荷 均衡原则从核心网设备 Pool中为 UE确定接入的核心网设备。 具体的, 核心网设备 Pool内的每个核心网设备会按其容量分配一个权重, 接入网 设备根据该权重选择核心网设备, 使得每个核心网设备的选择概率正比 于这个权重, 从而使得核心网设备 Pool中的各核心网设备之间的负荷均 衡。 与现有技术相比, 本申请实施例至少具有以下优点: 现有技术中,核心网设备的选择过程不区分 UE类型,且针对 MTC UE 不区分其所属的 MTC组; 对于同一 MTC组接入的 MTC UE , 会平均分 布在核心网设备 Pool内的各个核心网设备上; 而由于核心网的承载分配 过程是由所选择的核心网设备触发, 因此现有技术中无法实现同一 MTC 组内的 MTC UE使用公用的核心网承载资源的要求。
进一步的, 当核心网设备 Pool的数目比较多时、 和 /或同一核心网设 备 Pool内的核心网设备数目比较多时、 和 /或 MTC组数目比较多时, 会 造成 MTC UE接入核心网络占用大量网络资源的问题。
针对上述问题, 本申请实施例中, 在采用核心网设备 Pool的组网方 式下, 接入网设备在为 UE确定其接入的核心网设备时, 需要考虑 UE的 设备类型(如是 MTC UE或是 Non-MTC UE )以及 MTC UE所属的 MTC 组标识等信息, 从而在大量 MTC UE接入 3G移动通信或 4G移动通信网 络时, 解决占用大量核心网络资源的问题; 而且可以使得对应同一 MTC 组标识的多个 MTC UE选择同一个核心网设备接入移动通信网络, 进而 可以通过使用公用承载, 节省网络资源, 降低信令开销。
实施例二
基于与上述方法同样的发明构思, 本申请实施例中还提供了一种接 入网设备, 如图 4所示, 该设备包括:
第一确定模块 11 , 配置为确定用户设备 UE的设备类型;
第二确定模块 12,配置为当所述设备类型为机器类通信 MTC UE时, 确定所述 UE对应的 MTC组标识;
选择模块 13, 配置为当所述 MTC组标识对应有核心网设备时, 选择 所述 MTC组标识对应的核心网设备作为所述 UE接入的核心网设备。
所述第一确定模块 11 , 具体配置为当所述 UE接入到移动通信网络 后, 确定所述 UE的设备类型, 所述 UE的设备类型为 Non-MTC UE或者 MTC UE。
所述选择模块 13,还配置为当所述 MTC组标识未对应有核心网设备 时, 从核心网设备池 Pool中选择核心网设备作为所述 UE接入的核心网 设备。
所述选择模块 13, 进一步配置为利用核心网设备 Pool中各核心网设 备的权重以及预设策略, 从核心网设备 Pool中选择核心网设备作为所述 UE接入的核心网设备, 所述预设策略为保证各核心网设备的选择概率正 比于各核心网设备的权重。
本申请实施例中, 该接入网设备还可以包括: 记录模块 14, 配置为 在从核心网设备池 Pool中选择核心网设备作为所述 UE接入的核心网设 备之后, 记录所述 UE对应的 MTC组标识与所述选择的核心网设备之间 的对应关系。
其中, 本申请装置的各个模块可以集成于一体, 也可以分离部署。 上述模块可以合并为一个模块, 也可以进一步拆分成多个模块。
通过以上的实施方式的描述, 本领域的技术人员可以清楚地了解到本申 请可借助软件加必需的通用硬件平台的方式来实现, 当然也可以通过硬件, 但很多情况下前者是更佳的实施方式。 基于这样的理解, 本申请的技术方案 本质上或者说对现有技术做出贡献的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, 包括若千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)执行本申请各个实 施例所述的方法。
基于以上内容,本申请还提供了一种在其上记录有用于执行上述核心网 设备的选择方法的程序的计算机可读记录介质。 其中, 所述核心网设备的选 择方法的具体内容可参见方法实施例所述的内容, 在此不作赘述。
所述计算机可读记录介质包括用于以计算机(例如计算机)可读的形式 存储或传送信息的任何机制。 例如, 机器可读介质包括只读存储器(ROM )、 随机存取存储器(RAM )、 磁盘存储介质、 光存储介质、 闪速存储介质、 电、 光、 声或其他形式的传播信号 (例如, 载波、 红外信号、 数字信号等)等。
本领域技术人员可以理解附图只是一个优选实施例的示意图, 附图 中的模块或流程并不一定是实施本申请所必须的。
本领域技术人员可以理解实施例中的装置中的模块可以按照实施例 描述进行分布于实施例的装置中, 也可以进行相应变化位于不同于本实 施例的一个或多个装置中。 上述实施例的模块可以合并为一个模块, 也 可以进一步拆分成多个模块。
上述本申请实施例序号仅仅为了描述, 不代表实施例的优劣。
以上公开的仅为本申请的几个具体实施例, 但是, 本申请并非局限 于此, 任何本领域的技术人员能思之的变化都应落入本申请的保护范围。

Claims

权 利 要 求 书
1、 一种核心网设备的选择方法, 其特征在于, 包括:
接入网设备确定用户设备 UE的设备类型;
当所述设备类型为机器类通信 MTC UE时, 所述接入网设备确定所述 UE对应的 MTC组标识;
当所述 MTC 组标识对应有核心网设备时, 所述接入网设备选择所述 MTC组标识对应的核心网设备作为所述 UE接入的核心网设备。
2、 如权利要求 1 所述的方法, 其特征在于, 所述接入网设备确定用户 设备 UE的设备类型, 包括:
当所述 UE接入到移动通信网络后, 所述接入网设备确定所述 UE的设 备类型, 所述 UE的设备类型为 Non-MTC UE或者 MTC UE。
3、 如权利要求 1 所述的方法, 其特征在于, 所述接入网设备确定所述 UE对应的 MTC组标识, 之后还包括:
当所述 MTC组标识未对应有核心网设备时, 所述接入网设备从核心网 设备池 Pool中选择核心网设备作为所述 UE接入的核心网设备。
4、 如权利要求 3 所述的方法, 其特征在于, 所述接入网设备从核心网 设备池 Pool中选择核心网设备作为所述 UE接入的核心网设备, 包括: 所述接入网设备利用核心网设备 Pool 中各核心网设备的权重以及预设 策略,从核心网设备 Pool中选择核心网设备作为所述 UE接入的核心网设备, 所述预设策略为保证各核心网设备的选择概率正比于各核心网设备的权重。
5、 如权利要求 3或 4所述的方法, 其特征在于, 所述接入网设备从核 心网设备池 Pool中选择核心网设备作为所述 UE接入的核心网设备之后还包 括:
所述接入网设备记录所述 UE对应的 MTC组标识与所述选择的核心网 设备之间的对应关系。
6、 一种接入网设备, 其特征在于, 包括:
第一确定模块, 配置为确定用户设备 UE的设备类型;
第二确定模块, 配置为当所述设备类型为机器类通信 MTC UE时,确定
权 利 要 求 书 所述 UE对应的 MTC组标识;
选择模块, 配置为当所述 MTC组标识对应有核心网设备时 , 选择所述 MTC组标识对应的核心网设备作为所述 UE接入的核心网设备。
7、 如权利要求 6所述的接入网设备, 其特征在于,
所述第一确定模块 , 具体配置为当所述 UE接入到移动通信网络后 , 确 定所述 UE的设备类型,所述 UE的设备类型为 Non-MTC UE或者 MTC UE。
8、 如权利要求 6所述的接入网设备, 其特征在于,
所述选择模块, 还配置为当所述 MTC组标识未对应有核心网设备时, 从核心网设备池 Pool中选择核心网设备作为所述 UE接入的核心网设备。
9、 如权利要求 8所述的接入网设备, 其特征在于,
所述选择模块, 进一步配置为利用核心网设备 Pool 中各核心网设备的 权重以及预设策略,从核心网设备 Pool中选择核心网设备作为所述 UE接入 的核心网设备, 所述预设策略为保证各核心网设备的选择概率正比于各核心 网设备的权重。
10、 如权利要求 8或 9所述的接入网设备, 其特征在于, 还包括: 记录模块, 配置为在从核心网设备池 Pool 中选择核心网设备作为所述
UE接入的核心网设备之后 ,记录所述 UE对应的 MTC组标识与所述选择的 核心网设备之间的对应关系
11、 一种在其上记录有配置为执行权利要求 1所述方法的程序的计算机 可读记录介质。
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