WO2005091660A1 - Procede destine a mettre en oeuvre une limitation d'acces au reseau mobile - Google Patents

Procede destine a mettre en oeuvre une limitation d'acces au reseau mobile Download PDF

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Publication number
WO2005091660A1
WO2005091660A1 PCT/CN2005/000336 CN2005000336W WO2005091660A1 WO 2005091660 A1 WO2005091660 A1 WO 2005091660A1 CN 2005000336 W CN2005000336 W CN 2005000336W WO 2005091660 A1 WO2005091660 A1 WO 2005091660A1
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WO
WIPO (PCT)
Prior art keywords
access
access technology
plmn
network
user terminal
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PCT/CN2005/000336
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English (en)
French (fr)
Inventor
Jie Wang
Original Assignee
Huawei Technologies Co., Ltd.
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Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to US10/591,739 priority Critical patent/US7920846B2/en
Publication of WO2005091660A1 publication Critical patent/WO2005091660A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W60/00Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/02Access restriction performed under specific conditions
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/18Selecting a network or a communication service

Definitions

  • the present invention belongs to the field of mobile communication technology, and in particular, relates to a method for implementing mobile network access restriction. Background of the invention
  • the method for implementing the access restriction is also very mature.
  • the method obtains the user's home GSM network by analyzing the user identifier such as the global mobile user identity (IMSI) of the mobile user or the mobile station integrated service digital network number (MSISDN).
  • IMSI global mobile user identity
  • MSISDN mobile station integrated service digital network number
  • PLMN public land mobile network
  • the mobile user terminal when a mobile user terminal of the first GSM network roams into the second GSM network, the mobile user terminal initiates a location registration request to the second GSM network.
  • the second GSM network obtains the PLMN number of the user's home network by analyzing the user identity of the mobile user terminal, thereby determining that the network to which the user belongs is the first GSM network. Therefore, a location registration rejection message is returned to the mobile user terminal. Carry the cause value "The PLMN number is not allowed".
  • the mobile user terminal After receiving the rejection message, the mobile user terminal writes the PLMN number in the cause value carried in the message to the "Access Prohibited Access" in the mobile terminal user identification module (SIM).
  • SIM mobile terminal user identification module
  • PLMN list the list is still stored in the SIM card when the mobile terminal is turned off or the SIM card is removed; 6
  • the list of blocked PLMNs, mobile user terminals can implement access restrictions.
  • the mobile user terminal automatically selects the PLMN network mode, if the PLMN number of the selected network is in the list of "PLMNs forbidden to access", Then the mobile user terminal no longer initiates a location registration request to the GSM network corresponding to the PLMN number, so as to automatically implement access restrictions; when the mobile user terminal works in the manually selected PLMN network mode, if the mobile user terminal successfully accesses a certain PLMN Network, determine whether the PLMN number of the network exists in the list of "PLMNs forbidden to access", and if so, delete the PLMN number from the list of "PLMNs forbidden to access", so that the mobile user terminal automatically When the PLMN network mode is selected, a location registration request can be initiated to the PLMN network. This method can automatically prohibit a mobile user terminal from initiating
  • the main object of the present invention is to provide a method for implementing mobile network access restriction, which can distinguish different types of networks that share a PLMN number and implement access restriction for different types of networks.
  • the present invention provides a method for implementing mobile network access restriction, The method includes the following steps:
  • Step A When the mobile user terminal selects the PLMN network, it queries the list of forbidden PLMNs and access technology identifiers stored by the terminal itself;
  • Step B The mobile user terminal determines whether the selected PLMN network and access technology are in the list of forbidden PLMNs and access technology identifications. If so, the mobile user terminal does not send the information to the core network device MSC / SGSN. Location update request; otherwise, the mobile user terminal sends a location update request to the core network device MSC / SGSN to implement access to the network.
  • the method further includes generating the PLMN and access technology identification list forbidden to access, which specifically includes:
  • Step C1 The mobile user terminal sends a location update request to the core network device MSC / SGSN;
  • Step C2 If the MSC / SGSN determines that the user is not allowed to access the service network through the current access network, a location update rejection message is returned to the mobile user terminal, and the message carries a reason value for rejecting the location update;
  • Step C3 The mobile user terminal updates the cause value in the rejection message according to the location, and records the PLMN number and the access technology identifier of the access network that are denied access in the PLMN and access technology identification list for which access is prohibited.
  • Step C3 includes:
  • the mobile user terminal analyzes the cause value in the location update rejection message. If the cause value is "PLMN current access technology is not allowed", the mobile user terminal records the user in the PLMN and access technology identification list for which access is prohibited The PLMN number and access technology identification of the access network where the mobile terminal is located; if the cause value is "PLMN not allowed", the mobile user terminal records the PLMN number and all Access technology identification.
  • the method further includes modifying the PLMN and the access technology standard forbidden to access.
  • the contents of the identification list include:
  • the mobile user terminal If the mobile user terminal successfully accesses a PLMN by using an access technology in the manually selected PLMN network mode, it is determined whether the list of prohibited access PLMNs and access technology identifiers stored in the mobile user terminal includes The PLMN number of the accessed network and the corresponding access technology identifier, and if so, delete the access technology identifier corresponding to the PLMN number from the list.
  • the list of PLMNs and access technology identifiers for which access is prohibited includes:
  • At least one set of access restriction rule data wherein each set of access restriction rule data occupies five bytes, the first to third bytes are used to store the PLMN number, and the fourth and fifth bytes are respectively used to store The access technology identification.
  • the fourth and fifth bytes respectively used to store the access technology identifier include: one bit in each byte represents an access technology, and a bit of 0 represents that the access technology is an allowed access technology. Incoming access technology, this bit is 1 to indicate that the access technology is an access technology that prohibits access.
  • recording the access technology identifier in the list of prohibited access PLMN and access technology identifiers is: setting a bit used to represent the access technology to 1, the access prohibited PLMN and access technology
  • the deletion of the access technology identification from the identification list is: Set the bit used to represent the access technology to 0.
  • the PLMN network is a GSM network, a WCDMA network, a WLAN network, or a Bluetooth network.
  • the present invention uses the information in the list of forbidden PLMN and access technology identifiers stored in the SIM / third generation wireless communication system user identification module (USIM) to implement network access for the PLMN number and the access technology identifier.
  • the purpose of restriction thereby meeting the needs of mobile operators to restrict access to different access technologies.
  • the method can implement access restriction by using different restriction rules for different types of access networks, and in the process of implementing access restriction In China, the modifications to the current network and user terminals are small and easy to implement, which can fully meet the needs of operators to restrict access.
  • FIG. 1 is a flowchart for implementing the present invention.
  • Figure 2 is a flowchart of generating a PLMN and access technology identification list forbidden to access.
  • FIG. 3 is a schematic diagram of the 5n-1th byte of the access restriction rule data according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of the 5nth byte of the access restriction rule data according to an embodiment of the present invention.
  • the present invention is a method for implementing mobile network access restriction. This method adds an access technology identifier to the "PLMN forbidden to access" list in the prior art, and uses the PLMN number and the access technology identifier in the table to Access restrictions are implemented to achieve the need to implement access restrictions for different types of networks.
  • the present invention is implemented by using the following steps:
  • Step 101 The mobile user terminal enters the automatically selected PLMN network mode, and queries the list of forbidden PLMNs and access technology identifications stored in the SIM USIM on the mobile user terminal;
  • Step 102 The mobile user terminal determines whether the automatically-selected PLMN access network and access technology exist in the queried access-prohibited PLMN and access technology identification list. If yes, it indicates that the selected PLMN access network is prohibited. If the network is accessed, the mobile user terminal does not initiate a location update request to the MSC / SGSN device in the core network, and the process ends; if no, it indicates that the selected PLMN access network is a network that is allowed to access, then execute Step 103; Step 103: The mobile user terminal initiates a location update request to the core network equipment mobile switching center (MSC) / serving general wireless packet service (SGSN) through the selected PLMN access network, and finally realizes roaming of the mobile user terminal.
  • MSC core network equipment mobile switching center
  • SGSN serving general wireless packet service
  • the PLMN and access technology identification list forbidden in step 101 and step 102 are generated through the following steps:
  • Step 201 The mobile user terminal sends a location update request to the core network device MSC / SGSN through the access network.
  • Step 202 If the core network device MSC / SGSN determines that the user is not allowed to access the service network through the current access network, a location update rejection message is returned to the mobile user terminal, and the message carries a reason value for rejecting the location update.
  • the cause value may be selected from two types: "PLMN is not allowed” or "PLMN current access technology is not allowed” as the cause value, where the "PLMN current access technology” Not allowed, the cause value is a newly added cause value in the location update reject message for implementing the present invention;
  • Step 203 After the user mobile terminal receives the location update rejection message, according to the cause value in the message, the PLMN number of the access network and the access technology identifier that are denied access are recorded in the SIM / USIM forbidden access of the mobile user terminal.
  • the list of PLMNs and access technology identifiers is included in the list; the list of PLMNs and access technology identifiers that are forbidden to access is an extended list relative to the list of "PLMNs forbidden to access" in the prior art, and Table 1 shows the implementation. An embodiment of the list;
  • the table includes a PLMN number and an access technology identifier.
  • a PLMN number and a corresponding access technology identifier constitute a set of access restriction rule data in the table, which is used to indicate a PLMN number that is forbidden to access and
  • the access technology in the table includes at least one set of access restriction rule data, and each set of access restriction rule data occupies 5 bytes, where the first to third bytes are used to store the PLMN number, and the fourth The fifth to fifth bytes are used to store the access technology identifier.
  • each of the eight bits of each byte is used to represent an access technology. If it is 0, it means that the access technology corresponding to this bit is an access technology that allows access.
  • the 8th bit of the byte represents UTRAN ( WCDMA wireless access technology), if this bit is 1, it means WCDMA wireless access technology Forbidden access technology, if this bit is 0, it means that WCDMA wireless access technology is allowed access technology, and the remaining 7 bits of this byte are RFUs, which are used to reserve these 7 bits for possible future access.
  • the 8th bit of the byte represents the GSM wireless access technology.
  • the bit indicates that the GSM wireless access technology is a prohibited access. If the bit is 0, it means that the GSM wireless access technology is an allowed access technology.
  • the 7th bit of this byte represents the GSM COMPACT wireless access technology. If the bit is 1, it indicates the GSM COMPACT wireless access technology. The access technology is a forbidden access technology. If this bit is 0, it means that the GSM COMPACT wireless access technology is an allowed access technology.
  • the remaining 6 bits of this byte are RFUs, which are used to reserve the 6 bits for possible future use. The use of the access technology that appears; wherein, in step 203, the mobile user terminal records the access network PLMN number and the access technology identification that are denied access in the PLMN and access technology identification list forbidden for specific implementation for:
  • Mobile user terminal refuses to update the location after receiving the core network equipment MSC / SGSN After the message is analyzed, the cause value in the message is analyzed. If the cause value is "PLMN current access technology is not allowed", the mobile user terminal writes the PLMN number and the access technology identifier of the access network where the user's mobile terminal is located. In the list of forbidden PLMNs and access technology identifiers; if the cause value is "PLMN is not allowed", it indicates that under the access network represented by the PLMN number, all types of access technologies are not allowed to be connected.
  • the mobile user terminal records the PLMN number in the access-prohibited PLMN and access technology identifier list, and all access technology identifiers corresponding to the PLMN number in the list are 1. Used to indicate that the PLMN network does not allow all types of access network access;
  • the contents of the list of forbidden PLMNs and access technology identifiers can also be modified.
  • the specific implementation of the modification of the list is:
  • the mobile user terminal When the mobile user terminal successfully connects to a PLMN by using an access technology in the manually selected PLMN network mode, it is determined whether the list of prohibited access PLMNs and access technology identifiers stored in the mobile user terminal includes the The PLMN number of the accessed network and the corresponding access technology identifier. If so, in the list, set the bit corresponding to the access technology in the access technology identifier corresponding to the PLMN number to 0 to use the The access technology identifier is deleted from the list of access-prohibited PLMNs and access technology identifiers. After the bit is set to 0, it is determined whether all bits in each byte in the access technology identifier corresponding to the PLMN number are Both are 0.
  • each access technology corresponding to the PLMN number is not an access prohibited technology
  • the PLMN number and the PLMN are listed.
  • a group of access restriction rule data of a total of 5 bytes corresponding to the access technology identifier is deleted, otherwise, the group of access restriction rule data is retained.
  • the embodiments described above are only specific methods for implementing mobile network access restrictions for GSM networks and WCDMA networks.
  • the present invention can also implement access restrictions for other networks such as WLAN and Bluetooth.
  • the specific implementation process is as described above. Examples are similar.

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

Description

一种实现移动网络接入限制的方法
技术领域
本发明属于移动通信技术领域, 尤其涉及一种实现移动网络接入限 制的方法。 发明背景
当前, 在全球移动通讯系统( GSM ) 网络中, 移动用户已经能够在 不同运营商的 GSM网络之间进行漫游,并且 GSM网络也能够对移动用 户进行接入限制。 用于实现所述接入限制的方法也已经很成熟, 该方法 通过分析移动用户的全球移动用户标识(IMSI )或移动台综合业务数字 网络号码(MSISDN )等用户标识得到该用户归属 GSM网络的公用陆地 移动网络(PLMN )号, 由于不同运营商的 GSM网络具有不同的 PLMN 号, 因此, 该方法能够利用分析得到的 PLMN号判断得到该用户所归属 的 GSM网络,从而实现根据该用户所归属的 GSM网络对该用户进行相 应的接入限制, 其具体实现包括:
如果在两个运营商的 GSM 网络之间没有签订漫游许可协议, 当第 一 GSM网络的移动用户终端漫游到第二 GSM网络中时,该移动用户终 端向第二 GSM网絡发起位置登记请求,第二 GSM网络通过分析该移动 用户终端的用户标识得到该用户归属网络的 PLMN号,从而确定该用户 归属的网络为第一 GSM网络, 因此, 向该移动用户终端返回位置登记 拒绝消息, 该消息中携带原因值 "该 PLMN号不允许", 移动用户终端 在收到该拒绝消息后,将该消息所携带原因值中的 PLMN号写入到移动 终端用户标识模块 ( SIM ) 中的 "禁止接入的 PLMN" 列表中, 该列表 在移动终端关机或 SIM卡被取出时仍然保存在 SIM卡中; 利用该 "禁 6 止接入的 PLMN" 列表, 移动用户终端能够实现接入限制, 当移动用户 终端在自动选择 PLMN网络模式时, 如果所选择的网络的 PLMN号在 该 "禁止接入的 PLMN" 列表中, 则移动用户终端不再向该 PLMN号对 应的 GSM网络发起位置登记请求, 从而自动实现接入限制; 在移动用 户终端工作在人工选择 PLMN网络模式时,如果移动用户终端成功接入 到某个 PLMN网络, 则判断该网络的 PLMN号是否存在于 "禁止接入 的 PLMN"列表中,如果是,则将该 PLMN号从该 "禁止接入的 PLMN" 列表中删除,以使得移动用户终端在自动选择 PLMN网络模式下时能够 向该 PLMN网络发起位置登记请求。 该方法通过 "禁止接入的 PLMN" 列表能够自动禁止移动用户终端向禁止接入的 PLMN 网络发起位置登 记请求, 从而实现了接入限制的需要。
但是, 随着例如宽带码分多址系统(WCDMA )的 3G网络的出现, 使得上述方法无法充分满足接入限制的需要。 例如, 某些运营商可能同 时拥有 GSM网络和 WCDMA网络,该 GSM网络和 WCDMA网络可能 分别采用各自的 PLMN号, 也可能公用一个 PLMN号, 如果公用一个 PLMN号, 则无法根据该 PLMN号区分 GSM网络和 WCDMA网络,从 而无法实现针对 GSM网络或 WCDMA网络的接入限制。 同理, 对于其 它类型的网络, 如果公用一个 PLMN号, 也存在着上述无法满足区分不 同类型网络进行接入限制的问题。 发明内容
有鉴于此, 本发明的主要目的在于提供一种实现移动网络接入限制 的方法, 该方法能够区分公用一个 PLMN号的不同类型网络, 实现针对 不同类型网络进行接入限制。
为实现上述目的,本发明提供了一种实现移动网络接入限制的方法, 该方法包括以下步骤:
步骤 A: 移动用户终端在选择 PLMN网络时, 查询该终端自身所保 存的禁止接入的 PLMN及接入技术标识列表;
步骤 B: 移动用户终端判断所选择的 PLMN网络和接入技术是否在 所述的禁止接入的 PLMN及接入技术标识列表中, 如果是, 移动用户终 端则不向核心网设备 MSC/SGSN发送位置更新请求,否则,移动用户终 端则向核心网设备 MSC/SGSN发送位置更新请求, 以实现接入网絡。
其中,该方法进一步包括生成所述禁止接入的 PLMN及接入技术标 识列表, 具体包括:
步骤 C1 : 移动用户终端向核心网设备 MSC/SGSN发送位置更新请 求;
步骤 C2: MSC/SGSN如果判断不允许该用户通过当前接入网接入 服务网络, 则向所述移动用户终端返回位置更新拒绝消息, 在该消息中 携带有拒绝位置更新的原因值;
步骤 C3: 移动用户终端根据位置更新拒绝消息中的原因值, 在所述 禁止接入的 PLMN及接入技术标识列表中记录拒绝接入的接入网 PLMN 号以及接入技术标识。
其中, 步骤 C3包括:
移动用户终端分析位置更新拒绝消息中的原因值, 如果该原因值是 "PLMN 当前接入技术不允许", 则移动用户终端在所述禁止接入的 PLMN 及接入技术标识列表中记录该用户移动终端所在的接入网的 PLMN号以及接入技术标识; 如果原因值是 "PLMN不允许", 移动用 户终端在所述禁止接入的 PLMN及接入技术标识列表中记录该 PLMN 号和所有接入技术标识。
其中,该方法进一步包括修改所述禁止接入的 PLMN及接入技术标 识列表中的内容, 具体包括:
如果移动用户终端在人工选择 PLMN网络模式下, 利用一种接入技 术成功接入到一个 PLMN中,则判断该移动用户终端所保存的禁止接入 的 PLMN及接入技术标识列表中是否包括有所接入网络的 PLMN号以 及相应的接入技术标识, 如果是, 则在该列表中删除与该 PLMN号相对 应的接入技术标识。
其中, 所述禁止接入的 PLMN及接入技术标识列表包括:
至少一组接入限制规则数据, 其中, 每组接入限制规则数据占五个 字节, 第一至第三字节用于存储所述 PLMN号, 第四和第五字节分别用 于存储所述接入技术标识。
其中, 所述第四和第五字节分别用于存储所述接入技术标识包括: 每个字节中的一个比特代表一种接入技术, 该比特为 0代表该接入 技术为允许接入的接入技术, 该比特为 1代表该接入技术为禁止接入的 接入技术。
其中, 所述在禁止接入的 PLMN及接入技术标识列表中记录接入技 术标识为: 将用于代表该接入技术的比特置为 1 , 所述在禁止接入的 PLMN及接入技术标识列表中删除接入技术标识为: 将用于代表该接入 技术的比特置为 0。
其中, 所述 PLMN网络为 GSM网络、 WCDMA网络、 WLAN网络 或蓝牙网络。
可见, 本发明利用 SIM/第三代无线通讯系统用户标识模块(USIM ) 中存储的禁止接入的 PLMN及接入技术标识列表中的信息,针对 PLMN 号和接入技术标识来实现网络接入限制的目的, 从而满足了移动运营商 对不同接入技术进行接入限制的需求。 该方法能够针对不同类型的接入 网, 利用不同的限制规则实现接入限制, 并且, 在实现接入限制的过程 中, 对当前网络和用户终端的修改很小, 易于实现, 能够充分满足运营 商进行接入限制的需要。 附图简要说明
图 1为实现本发明的流程图。
图 2为生成禁止接入的 PLMN及接入技术标识列表的流程图。
图 3为本发明一实施例中接入限制规则数据第 5n-l字节的示意图。 图 4为本发明一实施例中接入限制规则数据第 5n字节的示意图。 实施本发明的方式
本发明为一种实现移动网络接入限制的方法, 该方法在现有技术中 的 "禁止接入的 PLMN"列表中增加接入技术标识,利用该表中的 PLMN 号和接入技术标识来进行接入限制, 从而实现针对不同类型网络实现接 入限制的需要。
下面结合附图对本发明进行详细描述。
参见图 1 , 用户移动终端在选择接入 PLMN接入网时, 利用以下步 骤实现本发明:
步骤 101: 移动用户终端进入自动选择 PLMN网络模式, 查询保存 在该移动用户终端上的 SIM USIM中的禁止接入的 PLMN及接入技术标 识列表;
步骤 102: 移动用户终端判断自动选择的 PLMN接入网及接入技术 是否存在于所查询的禁止接入的 PLMN及接入技术标识列表中, 如果 是, 表明所选择的 PLMN接入网为禁止接入的网络, 则移动用户终端不 向核心网中的 MSC/SGSN设备发起位置更新请求, 结束本流程; 否贝' J , 表明所选择的 PLMN接入网为允许接入的网络, 则执行步驟 103; 步骤 103: 移动用户终端通过所选择的 PLMN接入网向核心网设备 移动交换中心 (MSC ) /服务通用无线分组业务(SGSN )发起位置更新 请求, 并最终实现该移动用户终端的漫游。
其中, 在本发明中, 参见图 2, 通过如下步骤生成步驟 101以及步 骤 102中所述的禁止接入的 PLMN及接入技术标识列表:
步骤 201: 移动用户终端通过接入网向核心网设备 MSC/SGSN发送 位置更新清求;
步骤 202: 核心网设备 MSC/SGSN如果判断不允许该用户通过当前 接入网接入服务网络, 则向所述移动用户终端返回位置更新拒绝消息, 在该消息中携带有拒绝位置更新的原因值, 根据位置更新拒绝原因的不 同, 该原因值可以从 "PLMN不允许"或 "PLMN当前接入技术不允许" 两种中选择一种作为原因值, 其中, 所述的 "PLMN当前接入技术不允 许,, 原因值为实现本发明在位置更新拒绝消息中所新增加的一个原因 值;
步骤 203: 用户移动终端收到位置更新拒绝消息后, 根据该消息中 的原因值,将拒绝接入的接入网 PLMN号以及接入技术标识记录在该移 动用户终端的 SIM/USIM的禁止接入的 PLMN及接入技术标识列表中; 其中,所述禁止接入的 PLMN及接入技术标识列表为相对于现有技术中 的 "禁止接入 PLMN" 列表的一个扩展列表, 表 1为实现该列表的一个 实施例;
Figure imgf000008_0001
表 1 参见表 1 , 该表包括 PLMN号和接入技术标识, 一个 PLMN号和一 个对应的接入技术标识构成该表中的一组接入限制规则数据, 用以表示 一个禁止接入的 PLMN号及其接入技术, 在该表中, 包括至少一组接入 限制规则数据, 每组接入限制规则数据占 5个字节, 其中, 第一至第三 字节用于存储 PLMN号, 第四至第五字节用于存储接入技术标识, 在用 于存储接入技术标识的每个字节中, 每个字节的 8个比特分别各自用来 代表一种接入技术, 如果一个比特为 0, 则表示该比特对应的接入技术 是允许接入的接入技术, 如果该比特为 1 , 则表示该比特对应的接入技 术是禁止接入的接入技术; 参见图 3和图 4, 以表 1所示的第 5n-l字节 和第 5n字节为例, 在图 3所示的第 5n-l字节的具体实现中, 该字节的 第 8 比特位代表 UTRAN ( WCDMA无线接入技术), 如果该比特为 1 则表示 WCDMA无线接入技术为禁止的接入技术, 如果该比特为 0, 则 表示 WCDMA无线接入技术为允许的接入技术, 该字节的其余 7位为 RFU, 用于预留该 7比特以为将来可能出现的接入技术使用; 在图 4所 示的第 5n字节的具体实现中,该字节的第 8比特位代表 GSM无线接入 技术, 如果该比特为 1则表示 GSM无线接入技术为禁止的接入技术, 如果该比特为 0,则表示 GSM无线接入技术为允许的接入技术,该字节 的第 7比特位代表 GSM COMPACT无线接入技术, 如果该比特为 1则 表示 GSM COMPACT无线接入技术为禁止的接入技术, 如果该比特为 0, 则表示 GSM COMPACT无线接入技术为允许的接入技术, 该字节的 其余 6位为 RFU,用于预留该 6比特以为将来可能出现的接入技术使用; 其中, 在本步骤 203中, 移动用户终端将拒绝接入的接入网 PLMN 号以及接入技术标识记录在禁止接入的 PLMN及接入技术标识列表中 的具体实现为:
移动用户终端在收到核心网设备 MSC/SGSN返回的位置更新拒绝 消息后, 分析该消息中的原因值, 如果该原因值是 "PLMN当前接入技 术不允许", 则移动用户终端将该用户移动终端所在的接入网的 PLMN 号以及接入技术标识写入所述的禁止接入的 PLMN及接入技术标识列 表中; 如果原因值是 "PLMN不允许", 则表明在该 PLMN号所代表的 接入网下, 所有类型的接入技术均不允许接入, 在此情况下, 移动用户 终端将该 PLMN号记录在所述禁止接入的 PLMN及接入技术标识列表 中, 该列表中的该 PLMN号所对应的所有接入技术标识均为 1 , 用以表 示该 PLMN网络不允许所有类型的接入网接入;
其中,该禁止接入的 PLMN及接入技术标识列表中的内容还可进行 修改, 对该列表的修改的具体实现为:
当移动用户终端在人工选择 PLMN网络模式下, 利用一种接入技术 成功接入到一个 PLMN中 ,则判断该移动用户终端所保存的禁止接入的 PLMN及接入技术标识列表中是否包括有所接入网络的 PLMN号以及相 应的接入技术标识, 如果是, 则在该列表中, 将该 PLMN号对应的接入 技术标识中对应该接入技术的比特置为 0, 用以将该接入技术标识从该 禁止接入的 PLMN及接入技术标识列表中删除,在将所述比特置为 0后, 判断该 PLMN号对应的接入技术标识中各个字节中的所有比特位是否 均为 0, 如果是, 表明该 PLMN号对应的各个接入技术均不是禁止接入 的接入技术, 则在该禁止接入的 PLMN及接入技术标识列表中, 将该 PLMN号和该 PLMN号对应的接入技术标识共 5个字节的一组接入限制 规则数据一起删除, 否则, 保留该组接入限制规则数据。
以上所述实施例仅为针对 GSM网络和 WCDMA网络, 实现移动网 络接入限制的具体方法, 本发明还可针对例如 WLAN、蓝牙等其余网络 实现接入限制, 其具体实现过程与如上所述实施例类似。
以上所述仅为本发明的较佳实施例而已, 并不用以限制本发明, 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、一种实现移动网络接入限制的方法, 其特征在于, 该方法包括以 下步骤:
步驟 A: 移动用户终端在选择 PLMN网络时, 查询该终端自身所保 存的禁止接入的 PLMN及接入技术标识列表;
步骤 B: 移动用户终端判断所选择的 PLMN网络和接入技术是否在 所述的禁止接入的 PLMN及接入技术标识列表中, 如果是, 移动用户终 端则不向核心网设备 MSC/SGSN发送位置更新请求,否则,移动用户终 端则向核心网设备 MSC/SGSN发送位置更新请求, 以实现接入网络。
2、 据权利要求 1所述的方法, 其特征在于, 该方法进一步包括生 成所述禁止接入的 PLMN及接入技术标识列表, 具体包括:
步骤 C1: 移动用户终端向核心网设备 MSC/SGSN发送位置更新请 求;
步骤 C2: MSC/SGSN如果判断不允许该用户通过当前接入网接入 服务网络, 则向所述移动用户终端返回位置更新拒绝消息, 在该消息中 携带有拒绝位置更新的原因值;
步骤 C3: 移动用户终端根据位置更新拒绝消息中的原因值,在所述 禁止接入的 PLMN及接入技术标识列表中记录拒绝接入的接入网 PLMN 号以及接入技术标识。
3、 根据权利要求 2所述的方法, 其特征在于, 步骤 C3包括: 移动用户终端分析位置更新拒绝消息中的原因值, 如果该原因值是
"PLMN 当前接入技术不允许,,, 则移动用户终端在所述禁止接入的 PLMN 及接入技术标识列表中记录该用户移动终端所在的接入网的 PLMN号以及接入技术标识; 如果原因值是 "PLMN不允许", 移动用 户终端在所述禁止接入的 PLMN及接入技术标识列表中记录该 PLMN 号和所有接入技术标识。
4、根据权利要求 1所述的方法, 其特征在于, 该方法进一步包括修 改所述禁止接入的 PLMN及接入技术标识列表中的内容, 具体包括: 如果移动用户终端在人工选择 PLMN网络模式下,利用一种接入技 术成功接入到一个 PLMN中,则判断该移动用户终端所保存的禁止接入 的 PLMN及接入技术标识列表中是否包括有所接入网络的 PLMN号以 及相应的接入技术标识, 如果是, 则在该列表中删除与该 PLMN号相对 应的接入技术标识。
5、 据权利要求 1、 2、 3或 4所述的方法, 其特征在于, 所述禁止 接入的 PLMN及接入技术标识列表包括:
至少一组接入限制规则数据, 其中, 每组接入限制规则数据占五个 字节, 第一至第三字节用于存储所述 PLMN号, 第四和第五字节分别用 于存储所述接入技术标识。
6、才 据权利要求 5所述的方法, 其特征在于, 所述第四和第五字节 分别用于存储所述接入技术标识包括:
每个字节中的一个比特代表一种接入技术, 该比特为 0代表该接入 技术为允许接入的接入技术, 该比特为 1代表该接入技术为禁止接入的 接入技术。
7、 据权利要求 6 所述的方法, 其特征在于, 所述在禁止接入的 PLMN及接入技术标识列表中记录接入技术标识为: 将用于代表该接入 技术的比特置为 1 , 所述在禁止接入的 PLMN及接入技术标识列表中删 除接入技术标识为: 将用于代表该接入技术的比特置为 0。
8、 才艮据权利要求 1所述的方法, 其特征在于, 所述 PLMN网络为 GSM网络、 WCDMA网络、 WLAN网络或蓝牙网络。
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