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WO2009135431A1 - 用户信息通知方法、系统和装置 - Google Patents

用户信息通知方法、系统和装置 Download PDF

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Publication number
WO2009135431A1
WO2009135431A1 PCT/CN2009/071625 CN2009071625W WO2009135431A1 WO 2009135431 A1 WO2009135431 A1 WO 2009135431A1 CN 2009071625 W CN2009071625 W CN 2009071625W WO 2009135431 A1 WO2009135431 A1 WO 2009135431A1
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WO
WIPO (PCT)
Prior art keywords
frequency selection
rat
enodeb
selection priority
priority information
Prior art date
Application number
PCT/CN2009/071625
Other languages
English (en)
French (fr)
Inventor
徐晖
张娟
艾明
Original Assignee
大唐移动通信设备有限公司
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.)
Filing date
Publication date
Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Priority to US12/990,877 priority Critical patent/US8588140B2/en
Priority to JP2011507779A priority patent/JP2011520364A/ja
Priority to KR1020107027072A priority patent/KR101201731B1/ko
Priority to EP09741706.7A priority patent/EP2273834B1/en
Publication of WO2009135431A1 publication Critical patent/WO2009135431A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/20—Transfer of user or subscriber data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/045—Interfaces between hierarchically different network devices between access point and backbone network device

Definitions

  • the present invention relates to mobile communication technologies, and in particular, to a user information notification method, system and apparatus in a mobile communication system. Background of the invention
  • the Radio Network Controller (RNC) Base Station Controller (BSC) can pass the saved users.
  • the International Mobile Subscriber Identity (IMSI) of the UE (User Equipment) is analyzed to perform Radio Resource Management (RRM) to determine which frequency layer the UE preferentially uses for processing, and the corresponding Wireless access process.
  • RRM Radio Resource Management
  • the RNC/BSC can obtain the subscription information of the UE by analyzing the IMSI of the UE, and then allocate resources or parameters required for the radio access to the UE according to the subscription information. Wait, complete the wireless access process.
  • SAE System Architecture Evolution
  • LTE Long Term Evolution
  • RRM radio resource management
  • UE-based subscription information For example, in an evolved Universal Mobile Telecommunication System Terrestrial Access Network (E-UTRNA), an evolved base station (eNodeB) may be based on a radio access technology (RAT, in the subscription information of the UE). Radio Access Technology / Frequency Selection priority information to determine the UE's The priority of the cell reselection, and the UE in the redirected connection mode is determined to a different frequency layer or a different RAT.
  • E-UTRNA evolved Universal Mobile Telecommunication System Terrestrial Access Network
  • RAT radio access technology
  • Radio Access Technology / Frequency Selection priority information to determine the UE's
  • the priority of the cell reselection, and the UE in the redirected connection mode is determined to a different frequency layer or a different RAT.
  • the IMSI information of the user is not saved in the eNodeB, and therefore the RAT/Frequency Selection priority information of the UE cannot be obtained by analyzing the IMSI. Therefore, the eNodeB can only rely on other entities, such as mobility management.
  • the entity MME, Mobile Management Entity
  • MME Mobile Management Entity
  • the Home Subscriber Server provides the RAT/Frequency Selection priority information of the UE to the MME; after receiving the information, the MME determines that the UE is in the If the UE is in the roaming state, the information is modified according to the policy of the visited network of the UE, and then saved.
  • Figure 1 is a schematic diagram of the existing initial attach process. As shown in FIG. 1, in step 10, the HSS sends an Insert Subscriber Data message to the MME, where the RAT/Frequency Selection priority information of the UE is carried.
  • the MME can obtain the RAT/Frequency Selection priority information of the UE in the manner shown in Figure 1.
  • the eNodeB is really needed for the information.
  • the MME notifies the eNodeB of the RAT/Frequency Selection priority information of the UE that it has obtained in the prior art.
  • the HSS when the operator modifies the UE subscription information in the HSS, the HSS will also
  • the MME sends an Insert Subscriber Data message to notify the MME that the RAT/Frequency Selection priority information has changed, and the MMS just saves the information and does not trigger other processes. That is, in the prior art, in this case, how does the MME notify the eNodeB of the RAT/Frequency Selection priority information of the tampered UE? No corresponding solution has been given.
  • the main purpose of the present invention is to provide a user information notification method, so that the eNodeB can acquire the RAT/Frequency Selection priority information of the UE.
  • Another object of the present invention is to provide a user information notification system that enables an eNodeB to acquire RAT/Frequency Selection priority information of a UE.
  • a further object of the present invention is to provide a user information notification apparatus that enables an eNodeB to acquire RAT/Frequency Selection priority information of a UE.
  • a user information notification method comprising:
  • the mobility management entity MME notifies the evolved base station eNodeB of the obtained radio access technology RAT/frequency selection frequency selection priority information of the user terminal UE.
  • a user information notification system comprising: a mobility management entity MME and an evolved base station eNodeB;
  • the MME is configured to notify the eNodeB of the acquired radio access technology RAT/frequency selection frequency selection priority information of the user terminal UE;
  • the eNodeB is configured to receive RAT/Frequency Selection priority information of a UE from the MME.
  • a user information notification device includes: an obtaining unit and a notification unit; the acquiring unit is configured to acquire a radio access technology RAT/frequency selection frequency preference priority information of the user terminal UE; The notification unit is configured to notify the evolved base station eNodeB of the RAT/Frequency Selection priority information of the acquired UE.
  • the eNodeB can obtain the RAT/Frequency Selection priority information of the UE by receiving the notification message from the MME, and further perform radio resource management according to the information, thereby improving system performance.
  • Figure 1 is a schematic diagram of an existing initial attach process
  • FIG. 2 is a flowchart of an embodiment of a method for notifying a user information according to the present invention
  • FIG. 3 is a flowchart of another embodiment of a method for notifying a user information according to the present invention.
  • FIG. 4 is a schematic structural diagram of an embodiment of a user information notification system according to the present invention.
  • FIG. 5 is a schematic structural diagram of an embodiment of a user information notification apparatus according to the present invention. Mode for carrying out the invention
  • a new user information notification method is proposed in the present invention, and the MME notifies the eNodeB of the acquired RAT/Frequency Selection priority information of the UE.
  • the specific notification method includes: when the UE performs an initial attach procedure, a Track Area Update (TAU, Track Area Update) process, or migrates from an idle (IDLE) state to an active (Active) state, the MME establishes a request through an initial context (Initial Context Setup) The message is to notify the eNodeB of the acquired RAT/Frequency Selection priority information of the UE; when the UE is in the Active state, the MME passes the user.
  • the UE Context Modification Request message notifies the eNodeB of the acquired RAT/Frequency Selection priority information of the UE.
  • FIG. 2 is a flowchart of an embodiment of a method for notifying a user information according to the present invention. As shown in Figure 2, the following steps are included:
  • Step 201 The MME sends an Initial Context Setup Request message to the eNodeB.
  • the MME performs information exchange with the HSS, and receives the Insert Subscriber Data message from the HSS to obtain the RAT/Frequency Selection priority information of the UE carried therein.
  • the MME sends an Initial Context Setup Request message to the eNodeB, where the RAT/Frequency Selection Priority (Priority) parameter is carried, and the RAT/Frequency Selection priority information of the UE is notified to the eNodeB.
  • the RAT/Frequency Selection Priority Priority
  • the MME may also obtain the RAT/Frequency Selection priority information of the UE obtained in advance from the HSS.
  • the notification is sent to the eNodeB, that is, the Initial Context Setup Request message is sent to the eNodeB, which carries the RAT/Frequency Selection Priority parameter.
  • the RAT/Frequency Selection priority information of the UE that is pre-acquired in the MME mentioned herein may be that after the operator modifies the UE subscription information in the HSS, the HSS triggers the Insert Subscriber Data process, and the modified UE The RAT/Frequency Selection priority information is notified to the MME. After the MME obtains the information, if it is determined that the UE is in the IDLE state, the information is not notified to the eNodeB.
  • the information is The manner described in the embodiment is notified to the eNodeB by using an Initial Context Setup Request message; if it is determined that the UE is in an Active state, follow FIG. 3 Processed as shown.
  • Step 202 The eNodeB feeds back an Initial Context Setup Response message to the MME.
  • the eNodeB saves the received RAT/Frequency Selection priority information of the UE, and feeds back an Initial Context Setup Response message to the MME.
  • Table 1 shows that the structure of the existing Initial Context Setup Request message does not define the content related to the RAT/Frequency Selection priority information of the UE.
  • the structure of the Initial Context Setup Request message shown in Table 1 may be extended, and a RAT/Frequency Selection Priority is added after the UE Radio Capability parameter shown in Table 1 in the column corresponding to the IE/Group Name. The parameter is used to carry the RAT/Frequency Selection priority information of the UE.
  • IE Presence Information Unit
  • Group Name Group Name
  • Mobile management entity user terminal S 1 interface access point identification (MME M
  • Base station user terminal S 1 interface access point identifier M
  • Serving PLMN Serving Public Land Mobile Network
  • NAS-PDU C access layer signaling packet data unit
  • FIG. 3 is a flowchart of another embodiment of a method for notifying a user information according to the present invention. As shown in Figure 3, the following steps are included:
  • Step 301 The MME sends a UE Context Modification Request message to the eNodeB.
  • the HSS When the operator modifies the subscription information of the UE in the HSS, the HSS triggers the Insert.
  • the MME when determining that the UE is in the Active state, notifies the eNodeB of the information through the UE Context Modification process, that is, sends the UE Context Modification Request message to the eNodeB, and It carries the RAT/Frequency Selection Priority parameter.
  • Step 302 The eNodeB feeds back a UE Context Modification Response (UE Context Modification Response) message to the MME.
  • UE Context Modification Response UE Context Modification Response
  • the eNodeB saves the received RAT/Frequency Selection priority information of the UE, and feeds back the UE Context Modification Response message to the MME.
  • the UE Context Modification Request message and the UE Context Modification Response message are both existing messages in the prior art.
  • the difference between the embodiment of the present invention and the prior art is that only one of the UE Context Modification Request messages is carried.
  • RAT/Frequency Selection Priority parameter is carried.
  • Table 3 shows the UE Context Modification Request cancellation structure in the existing protocol.
  • the content related to the RAT/Frequency Selection priority information of the UE is not defined in the structure of the existing UE Context Modification Request message.
  • the structure of the Initial Context Setup Request message shown in Table 3 may be extended, in the IE/Group Name column, that is, the security shown in Table 3.
  • a RAT/Frequency Selection Priority parameter is used to carry the RAT/Frequency Selection priority information of the UE.
  • the eNodeB in the present invention can obtain the RAT/Frequency Selection priority information of the UE in any case.
  • FIG. 4 is a schematic structural diagram of an embodiment of a user information notification system according to the present invention. As shown in FIG. 4, the system includes: an MME 401 and an eNodeB 402;
  • the MME 401 is configured to notify the eNodeB 402 of the acquired RAT/Frequency Selection priority information of the UE;
  • the eNodeB 402 is configured to receive RAT/Frequency Selection priority information of the UE from the MME 401.
  • the MME 401 includes: an obtaining unit 4011 and a notification unit 4012, where: an obtaining unit 4011 is configured to acquire RAT/Frequency Selection priority information of the UE, and a notification unit 4012 is configured to: prioritize the acquired RAT/Frequency Selection of the UE
  • the information is notified to the eNodeB 402: when the UE performs the initial attach process, the TAU process, or migrates from the IDLE state to the active state, the notification unit 4012 notifies the eNodeB 402 of the acquired RAT/Frequency Selection priority information through the Initial Context Setup Request message; When the UE is in the Active state, the notification unit 4012 obtains the message through the UE Context Modification Request message.
  • ⁇ RAT/Frequency Selection The priority information is notified to the eNodeB 402.
  • FIG. 5 is a schematic structural diagram of a structure of an embodiment of a user information notification apparatus according to the present invention. As shown in FIG. 5, the device includes: an obtaining unit 4011 and a notifying unit 4012; wherein:
  • the obtaining unit 4011 is configured to acquire RAT/Frequency Selection priority information of the UE.
  • the notification unit 4012 is configured to notify the eNodeB 402 of the acquired RAT/Frequency Selection priority information of the UE.
  • the notification unit 4012 specifically includes: a first notification subunit 40121 and a second notification subunit 40122;
  • the first notification sub-unit 40121 is configured to notify the eNodeB 402 of the acquired RAT/Frequency Selection priority information by using the Initial Context Setup Request message when the UE performs the initial attach process, the TAU process, or migrates from the IDLE state to the Active state;
  • the second notification sub-unit 40122 is configured to notify the eNodeB 402 of the RAT/Frequency Selection priority information obtained by the UE Context Modification Request message when the UE is in the Active state.
  • the eNodeB can obtain the RAT/Frequency Selection priority information of the UE by receiving the notification message from the MME, and further perform radio resource management according to the information, thereby improving system performance.

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  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Description

用户信息通知方法、 系统和装置 技术领域
本发明涉及移动通信技术， 特别涉及一种移动通信系统中的用户信 息通知方法、 系统和装置。 发明背景
在传统的第三代合作伙伴项目 （3GPP, 3rd-Generation Partnership Project ) 系统中， 无线网络控制器（RNC, Radio Network Controller ) I 基站控制器（BSC, Base Station Controller )可以通过对所保存的用户终 端（UE, User Equipment ) 的国际移动用户识别码 ( IMSI, International Mobile Subscriber Identity )进行分析来进行无线资源管理（ RRM , Radio Resource Management ), 以决定 UE优先使用哪个频率层进行处理， 完 成相应的无线接入过程。 比如， 基于 IMSI 的切换过程（IMSI Based Handover ) 中， RNC/BSC可以通过对 UE的 IMSI进行分析来获取 UE 的签约信息， 进而根据该签约信息为该 UE分配无线接入所需的资源或 参数等， 完成无线接入过程。
现有的系统框架演进 ( SAE, System Architecture Evolution )或长期 演进（ LTE, Long Term Evolution ) 系统也支持基于 UE的签约信息的无 线资源管理 ( RRM, Radio Resource Management )策略。 比如， 演进的 通用移动通信系统无线接入网 （ E-UTRNA , Evolution -Universal Mobile Telecommunication System Terrestrial Access Network ) 中 , 演进型基站 ( eNodeB )可根据 UE的签约信息中的无线接入技术（ RAT, Radio Access Technology ) /频率选择 ( Frequency Selection )优先级信息来决定 UE的 小区重选的优先级， 以及将重定向连接模式下的 UE决定到不同的频率 层或不同的 RAT。
但是，出于安全原因的考虑， eNodeB中并不保存用户的 IMSI信息， 因此也就无法通过分析 IMSI来得到 UE的 RAT/ Frequency Selection优 先级信息， 所以， eNodeB只能靠其它实体， 比如移动管理实体（ MME, Mobile Management Entity )来通知其 UE的 RAT/ Frequency Selection优 先级信息。
现有技术中， 在初始附着（ attach )过程中， 归属用户服务器（ HSS , Home Subscriber Server )会将 UE的 RAT/ Frequency Selection优先级信 息提供给 MME; MME接收到该信息后，如果确定 UE处于非漫游状态， 则直接保存该信息； 如果确定 UE处于漫游状态， 则首先根据 UE当前 所在拜访网络的策略对该信息进行修改， 然后再进行保存。 图 1为现有 初始 attach过程示意图。 如图 1所示， 在步骤 10中， HSS向 MME发送 插入用户数据 ( Insert Subscriber Data ) 消息， 其中携带有 UE的 RAT/ Frequency Selection优先级信息。
通过图 1所示方式， MME即可获取 UE的 RAT/ Frequency Selection 优先级信息，可是依据前面的介绍可知，真正需要这些信息的是 eNodeB。 但是 MME如何将自身获取到的 UE的 RAT/ Frequency Selection优先级 信息通知给 eNodeB在现有技术中却没有进行说明。
同时， 当运营商对 HSS中的 UE签约信息进行修改后， HSS也会向
MME发送 Insert Subscriber Data消息，通知 MME UE的 RAT/ Frequency Selection优先级信息已经改变， 而 MMS同样只是保存该信息， 并不触 发其它的过程。 也就是说， 现有技术中对于这种情况下， MME如何将 爹改后的 UE的 RAT/ Frequency Selection优先级信息通知给 eNodeB也 没有给出相应的解决方式。
可见，现有技术中，由于得不到来自 MME的通知消息，所以 eNodeB 无法获取到所需的 UE的 RAT/ Frequency Selection优先级信息， 从而也 就无法 ^^据该信息进行无线资源管理， 影响系统性能。 发明内容
有鉴于此， 本发明主要目的在于提供一种用户信息通知方法， 使得 eNodeB能够获取到 UE的 RAT/Frequency Selection优先级信息。
本发明的另一目的在于提供一种用户信息通知系统， 使得 eNodeB 能够获取到 UE的 RAT/Frequency Selection优先级信息。
本发明的再一目的在于提供一种用户信息通知装置， 使得 eNodeB 能够获取到 UE的 RAT/Frequency Selection优先级信息。
为达到上述目的， 本发明的技术方案是这样实现的：
一种用户信息通知方法， 该方法包括：
移动管理实体 MME将获取到的用户终端 UE的无线接入技术 RAT/ 频率选择 Frequency Selection优先级信息通知给演进型基站 eNodeB。
一种用户信息通知系统， 该系统包括： 移动管理实体 MME和演进 型基站 eNodeB;
所述 MME, 用于将获取到的用户终端 UE的无线接入技术 RAT/频 率选择 Frequency Selection优先级信息通知给所述 eNodeB;
所述 eNodeB , 用于接收来自所述 MME的 UE的 RAT/ Frequency Selection优先级信息。
一种用户信息通知装置， 该装置包括： 获取单元和通知单元； 所述获取单元，用于获取用户终端 UE的无线接入技术 RAT/频率选 Frequency Selection优先级信息； 所述通知单元，用于将所述获取到的 UE的 RAT/ Frequency Selection 优先级信息通知给演进型基站 eNodeB。
可见，采用本发明的技术方案， eNodeB可通过接收来自 MME的通 知消息， 获取 UE的 RAT/Frequency Selection优先级信息， 并进一步根 据该信息进行无线资源管理， 提高系统性能。 附图简要说明
下面将通过参照附图详细描述本发明的示例性实施例， 使本领域的 普通技术人员更清楚本发明的上述及其它特征和优点， 附图中：
图 1为现有初始 attach过程示意图；
图 2为本发明用户信息通知方法一实施例的流程图；
图 3为本发明用户信息通知方法另一实施例的流程图；
图 4为本发明用户信息通知系统实施例的组成结构示意图； 图 5为本发明用户信息通知装置实施例的组成结构示意图。 实施本发明的方式
为使本发明的目的、 技术方案及优点更加清楚明白， 以下参照附图 并举实施例， 对本发明作进一步地详细说明。
针对现有技术中存在的问题， 本发明中提出一种新的用户信息通知 方法， 由 MME将获取到的 UE的 RAT/ Frequency Selection优先级信息 通知给 eNodeB。 具体通知方法包括： 当 UE执行初始 attach过程、 跟踪 区域更新（TAU, Track Area Update )过程， 或从空闲 （IDLE )状态迁 移到活跃 ( Active )状态时， MME 通过初始上下文建立请求 （Initial Context Setup Request ) 消息将获取到的 UE的 RAT/ Frequency Selection 优先级信息通知给 eNodeB; 当 UE处于 Active状态时， MME通过用户 终端上下文修改请求（ UE Context Modification Request ) 消息将获取到 的 UE的 RAT/ Frequency Selection优先级信息通知给 eNodeB。
下面通过具体的实施例对本发明所述方案作进一步地详细说明： 图 2为本发明用户信息通知方法一实施例的流程图。 如图 2所示， 包括以下步骤：
步骤 201： MME向 eNodeB发送 Initial Context Setup Request消息。 当 UE执行初始 attach过程或 TAU过程时， MME会与 HSS进行信 息交互， 通过接收来自 HSS的 Insert Subscriber Data消息， 获取其中携 带的 UE的 RAT/ Frequency Selection优先级信息。 之后， 按照本发明实 施例所述方法， MME向 eNodeB发送 Initial Context Setup Request消息， 其中携带有 RAT/ Frequency Selection优先级（ Priority )参数， 将 UE的 RAT/ Frequency Selection优先级信息通知给 eNodeB。
另夕卜， 当 UE处于 IDLE状态， 发起服务请求（ Service Request )过 程， 将自身的状态由 IDLE状态迁移到 Active状态时， MME也可以将 预先获取自 HSS的 UE的 RAT/ Frequency Selection优先级信息通知给 eNodeB , 即向 eNodeB发送 Initial Context Setup Request消息， 其中携带 有 RAT/ Frequency Selection Priority参数。
这里所提到的 MME中预先获取的 UE的 RAT/ Frequency Selection 优先级信息， 可以是指当运营商对 HSS中的 UE签约信息进行修改后， HSS触发 Insert Subscriber Data过程，将修改后的 UE的 RAT/ Frequency Selection优先级信息通知给 MME的。 MME获取到该信息后， 如果确 定 UE处于 IDLE状态， 则不会将该信息通知给 eNodeB; 如果确定 UE 发起 Service Request过程， 将自身的状态由 IDLE状态迁移到 Active状 态， 则将该信息按照本实施例所述方式通过 Initial Context Setup Request 消息通知给 eNodeB; 如果确定 UE处于 Active状态， 则按照后续图 3 所示方式进行处理。
步骤 202: eNodeB向 MME反馈初始上下文建立响应（ Initial Context Setup Response ) 消息。
eNodeB保存所接收到的 UE的 RAT/ Frequency Selection优先级信 息， 并向 MME反馈 Initial Context Setup Response消息。
需要说明的是， 上述 Initial Context Setup Request 消息和 Initial Context Setup Response消息均为现有技术中已经存在的消息， 本发明实 施例与现有技术相比，区别仅在于在 Initial Context Setup Request消息中
Figure imgf000008_0001
表 1可以看出，现有 Initial Context Setup Request消息的结构中并没有定 义与 UE的 RAT/ Frequency Selection优先级信息相关的内容。本发明实 施例中，可以对表 1所示 Initial Context Setup Request消息的结构进行扩 展， 在 IE/Group Name对应的一栏下， 即表 1所示 UE Radio Capability 参数之后增加一个 RAT/ Frequency Selection Priority参数， 用于携带 UE 的 RAT/ Frequency Selection优先级信息。
信息单元（IE ) / 参数 ( Presence ) 范围 （Range ) 组名称（Group Name )
消息类型 （ Message Type ) 必选（M )
移动管理实体用户终端 S 1接口接入点标识（ MME M
UE S1AP ID )
基站用户终端 S 1接口接入点标识 M
( eNB UE SlAP ID )
聚合最大比特率 可选（0 )
( Aggregate Maximum Bit Rate )
建立的 SAE承载列表 M
( SAE Bearer to Be Setup List )
>建立的 SAE承载条目 1 to
( SAE Bearer to Be Setup Item IEs ) <maxnoofSAEbe arers>
»SAE承载标识 M
( SAE Bearer ID )
»SAE承载层次服务质量参数 M
( SAE Bearer Level QoS Parameters )
» ^输层地址 M
( Transport Layer Address )
»通用分组无线业务隧道协议隧道标识 M
( GTP TEID )
安全 ( Security ) M
跟踪激活 （ Trace Activation ) 0
服务公共陆地移动网络 ( Serving PLMN ) 0
切换限制列表 ( Handover Restriction List ) 0
C接入层信令分组数据单元（ NAS-PDU ) 0
UE无线能力 （ UE Radio Capability ) 0
Initial Context Setup Request消息的结构
Figure imgf000009_0001
Initial Context Setup Response消息结构 图 3为本发明用户信息通知方法另一实施例的流程图。如图 3所示， 包括以下步骤：
步骤 301 : MME向 eNodeB发送 UE Context Modification Request 消息。
当运营商对 HSS中的 UE的签约信息进行修改后， HSS会触发 Insert
Subscriber Data过程通 口 MME修改后的 UE的 RAT/ Frequency Selection 优先级信息。 那么按照本发明实施例所述方法， 当确定 UE处于 Active 状态时， MME会通过用户终端上下文修改（ UE Context Modification ) 过程将该信息通知给 eNodeB , 即向 eNodeB 发送 UE Context Modification Request 消息， 并在其中携带 RAT/ Frequency Selection Priority参数。
步骤 302: eNodeB 向 MME反馈用户终端上下文修改响应 （ UE Context Modification Response ) 消息。
eNodeB保存所接收到的 UE的 RAT/ Frequency Selection优先级信 息， 并向 MME反馈 UE Context Modification Response消息。
同样， 上述 UE Context Modification Request 消息和 UE Context Modification Response消息均为现有技术中已经存在的消息， 本发明实 施例与现有技术相比， 区别仅在于在 UE Context Modification Request消 息中多携带了一个 RAT/ Frequency Selection Priority参数。
如下表所示：表 3为现有协议中 UE Context Modification Request消 结构。 从表 3可以看出， 现有 UE Context Modification Request消息的结 构中并没有定义与 UE的 RAT/ Frequency Selection优先级信息相关的内 容。 本发明实施例中， 可以对表 3所示 Initial Context Setup Request消息 的结构进行扩展， 在 IE/Group Name 一栏下， 即表 3 所示 Security Information参数的后面增力口一个 RAT/ Frequency Selection Priority参数, 用于携带 UE的 RAT/ Frequency Selection优先级信息。
Figure imgf000011_0001
UE Context Modification Request消息结构
Figure imgf000011_0002
UE Context Modification Response消息结构 通过采用上述实施例所述方法， 本发明中的 eNodeB无论在何种情 况下， 均可获取到 UE的 RAT/ Frequency Selection优先级信息。
基于上述方法， 图 4为本发明用户信息通知系统实施例的组成结构 示意图。 如图 4所示， 该系统包括： MME401和 eNodeB402;
MME401 , 用于将获取到的 UE的 RAT/ Frequency Selection优先级 信息通知给 eNodeB402;
eNodeB402 , 用于接收来自 MME401 的 UE 的 RAT/ Frequency Selection优先级信息。
其中， MME401包括： 获取单元 4011以及通知单元 4012, 其中： 获取单元 4011 ,用于获取 UE的 RAT/ Frequency Selection优先级信 息；通知单元 4012,用于将获取到的 UE的 RAT/ Frequency Selection优 先级信息通知给 eNodeB402: 当 UE执行初始 attach过程、 TAU过程， 或从 IDLE状态迁移到 Active状态时，通知单元 4012通过 Initial Context Setup Request消息将获取到的 RAT/ Frequency Selection优先级信息通 知给 eNodeB402; 当 UE处于 Active状态时， 通知单元 4012通过 UE Context Modification Request消息、夺获取 ] ^ RAT/ Frequency Selection 优先级信息通知给 eNodeB402。
图 5为本发明用户信息通知装置实施例的组成结构示意图。 如图 5 所示， 该装置包括： 获取单元 4011和通知单元 4012; 其中：
获取单元 4011 ,用于获取 UE的 RAT/ Frequency Selection优先级信 息；
通知单元 4012,用于将获取到的 UE的 RAT/ Frequency Selection优 先级信息通知给 eNodeB402„
其中， 通知单元 4012具体包括： 第一通知子单元 40121 以及第二 通知子单元 40122;
第一通知子单元 40121 , 用于当 UE执行初始 attach过程、 TAU过 程， 或从 IDLE状态迁移到 Active状态时， 通过 Initial Context Setup Request 消息将获取到的 RAT/ Frequency Selection优先级信息通知给 eNodeB402;
第二通知子单元 40122, 用于当 UE处于 Active状态时， 通过 UE Context Modification Request消息^1夺获取到的 RAT/ Frequency Selection 优先级信息通知给 eNodeB402。
图 4和图 5所示系统和装置实施例的具体工作流程请参照方法实施 例中的相应说明， 此处不再赘述。
总之， 采用本发明的技术方案， eNodeB可通过接收来自 MME的通 知消息， 获取 UE的 RAT/Frequency Selection优先级信息， 并可进一步 根据该信息进行无线资源管理， 提高系统性能。
综上所述， 以上仅为本发明的较佳实施例而已， 并非用于限定本发 明的保护范围。 凡在本发明的精神和原则之内， 所作的任何修改、 等同 替换、 改进等， 均应包含在本发明的保护范围之内。

Claims

权利要求书
1、 一种用户信息通知方法， 其特征在于， 该方法包括：
移动管理实体 MME将获取到的用户终端 UE的无线接入技术 RAT/ 频率选择 Frequency Selection优先级信息通知给演进型基站 eNodeB。
2、根据权利要求 1所述的方法， 其特征在于， 所述 MME获取到的 RAT/Frequency Selection优先级信息为接收自归属用户服务器 HSS 的 RAT/Frequency Selection优先级信息。
3、根据权利要求 1或 2所述的方法， 其特征在于， 所述 MME将获 取到的 UE的 RAT/ Frequency Selection优先级信息通知给 eNodeB包括： 当所述 UE执行初始附着 attach过程、 跟踪区域更新 TAU过程， 或 从空闲 IDLE状态迁移到活跃 Active状态时， 所述 MME通过初始上下 文建立请求 Initial Context Setup Request 消息将所述获取到的 RAT/ Frequency Selection优先级信息通知给所述 eNodeB;
当所述 UE处于 Active状态时， 所述 MME通过用户终端上下文爹 改请求 UE Context Modification Request 消息将所述获取到的 RAT/ Frequency Selection优先级信息通知给所述 eNodeB。
4、根据权利要求 3所述的方法，其特征在于，所述 MME通过 Initial Context Setup Request消息将所述获取到的 RAT/ Frequency Selection优 先级信息通知给所述 eNodeB包括：
Figure imgf000013_0001
其中携带有 RAT/频率选择优先级 Frequency Selection Priority参数； 所述 MME通过 UE Context Modification Request消息将所述获取到 的 RAT/ Frequency Selection优先级信息通知给所述 eNodeB包括：
所述 MME向所述 eNodeB发送 UE Context Modification Request消 息， 其中携带有 RAT/ Frequency Selection Priority参数。
5、 根据权利要求 1所述的方法， 其特征在于， 该方法进一步包括： 所述 eNodeB保存接收到的 UE的 RAT/ Frequency Selection优先级信息。
6、 一种用户信息通知系统， 其特征在于， 该系统包括： 移动管理 实体 MME和演进型基站 eNodeB;
所述 MME, 用于将获取到的用户终端 UE的无线接入技术 RAT/频 率选择 Frequency Selection优先级信息通知给所述 eNodeB;
所述 eNodeB, 用于接收来自所述 MME的 UE的 RAT/ Frequency Selection优先级信息。
7、 根据权利要求 6所述的系统， 其特征在于， 所述 MME包括： 获 取单元以及通知单元；
所述获取单元，用于获取 UE的 RAT/ Frequency Selection优先级信 所述通知单元，用于将所述获取到的 UE的 RAT/ Frequency Selection 优先级信息通知给所述 eNodeB, 其中， 当所述 UE执行初始附着 attach 过程、 跟踪区域更新 TAU过程， 或从空闲 IDLE状态迁移到活跃 Active 状态时，通过初始上下文建立请求 Initial Context Setup Request消息将所 述获取到的 RAT/ Frequency Selection优先级信息通知给所述 eNodeB; 当所述 UE处于 Active状态时，通过用户终端上下文修改请求 UE Context Modification Request消息将所述获取到的 RAT/ Frequency Selection优 先级信息通知给所述 eNodeB。
8、 一种用户信息通知装置， 其特征在于， 该装置包括： 获取单元 和通知单元；
所述获取单元，用于获取用户终端 UE的无线接入技术 RAT/频率选 Frequency Selection优先级信息； 所述通知单元，用于将所述获取到的 UE的 RAT/ Frequency Selection 优先级信息通知给演进型基站 eNodeB。
9、 根据权利要求 8 所述的装置， 其特征在于， 所述通知单元具体 包括： 第一通知子单元以及第二通知子单元；
所述第一通知子单元， 用于当所述 UE执行初始附着 attach过程、 跟踪区域更新 TAU过程，或从空闲 IDLE状态迁移到活跃 Active状态时， 通过初始上下文建立请求 Initial Context Setup Request消息将所述获取 到的 RAT/ Frequency Selection优先级信息通知给所述 eNodeB;
所述第二通知子单元， 用于当所述 UE处于 Active状态时， 通过用 户终端上下文修改请求 UE Context Modification Request消息将所述获取 到的 RAT/ Frequency Selection优先级信息通知给所述 eNodeB。
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