WO2012058944A1 - 一种无线网络共享中选择核心网运营商的方法和系统 - Google Patents

一种无线网络共享中选择核心网运营商的方法和系统 Download PDF

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Publication number
WO2012058944A1
WO2012058944A1 PCT/CN2011/077367 CN2011077367W WO2012058944A1 WO 2012058944 A1 WO2012058944 A1 WO 2012058944A1 CN 2011077367 W CN2011077367 W CN 2011077367W WO 2012058944 A1 WO2012058944 A1 WO 2012058944A1
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Prior art keywords
mscs
mgw
location update
nri
rnc
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PCT/CN2011/077367
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English (en)
French (fr)
Inventor
凌军
刘强生
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中兴通讯股份有限公司
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Publication of WO2012058944A1 publication Critical patent/WO2012058944A1/zh

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    • 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
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/04Interfaces between hierarchically different network devices
    • H04W92/14Interfaces between hierarchically different network devices between access point controllers and backbone network device

Definitions

  • the present invention relates to a second generation (Second Generation, 2G) mobile communication network and a third generation Ord-Generation, 3G) mobile communication network sharing technology, and more particularly to a method and system for selecting a core network operator in wireless network sharing.
  • 2G second generation
  • 3G Third generation Ord-Generation
  • the network sharing technology in the Wideband Code Division Multiple Access (WCDMA) network is a technology that allows a part of WCDMA network elements to be shared among different network operators.
  • WCDMA Wideband Code Division Multiple Access
  • RAN radio access network
  • This network sharing method mainly involves the mobile switching center pool (MSC POOL) networking mode introduced in the 3GPP TS 23.236 standard, and the multi-operator core network (Multi-Operator Core Network) introduced in 3GPP TS 23.251. MOCN) networking mode.
  • the sharing method is also applicable to a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) network.
  • TD-SCDMA Time Division-Synchronous Code Division Multiple Access
  • the introduction of the MSC POOL networking method breaks the relationship that the radio network controller (RNC) can only be controlled by one core network node MSC.
  • RNC radio network controller
  • One RNC can access multiple MSCs, and the multiple MSCs can form one.
  • the pool called MSC POOL; the radio area under the jurisdiction of all RNCs of the MSC POOL becomes the service area of the MSC POOL.
  • RNC1, RNC2, and RNC3 can each access MSC1, or MSC2, or MSC3. .
  • User device when the user first roams to the service area of MSC POOL Equipment, UE) initiates a location update process, and the RNC can assign an MSC to the user based on specific principles, such as load balancing.
  • the MSC allocates a Temporary Mobile Subscriber Identity (TMSI) to the user when the location update process is completed, and the MSC-specific Network Resource Identifier (NRI) is included in the TMSI.
  • TMSI Temporary Mobile Subscriber Identity
  • NRI Network Resource Identifier
  • the RNC needs to re-select the MSC for the user according to specific principles, such as load balancing. This process is called the load unloading process.
  • the MOCN networking mode defines the networking mode in which different MSCs are connected to the same RNC, the RNCs are shared by the operators, and the MSCs are operated by different operators.
  • the networking mode needs to be implemented on the basis of the MSC POOL networking, and the RNC selects the MSC node function (NNSF) for the user in the original MSC POOL network, that is, selects the core in the location update.
  • NSF MSC node function
  • the NNSF in the MOCN networking mode includes: when the user is ready to perform location update or prepare to initiate a service, the UE sends an Initial Direct Transfer message to the RNC, and the RNC needs to select the MSC for the user according to different situations. :
  • the RNC can directly find the MSC of the corresponding operator according to the NRI;
  • the RNC needs to determine which carrier the NULL NRI belongs to, and select one MSC among the MSCs belonging to other operators. Just ask the RNC on an MSC POOL It can support multiple NULL NRIs, and each NULL NRI corresponds to the core network operator.
  • the RNC needs to select the operator's MSC for the UE through the route reselection procedure defined in the protocol.
  • the MSC and the RNC need to cooperate to complete the NNSF function.
  • Not all RNCs in the existing network support this function, and target the base station controller in the GSM network ( Base Station Controller (BSC), there is no description of related network sharing, but in actual applications, operators still need to share GSM network.
  • BSC Base Station Controller
  • the existing network that is, in the GSM network and the WCDMA network, and/or the TD-SCDMA network, how to implement the NNSF function in the network sharing technology with a minimum of changes is an issue of great concern to the operator. Summary of the invention
  • the main object of the present invention is to provide a method and system for selecting a core network operator in wireless network sharing, without being able to modify a GSM wireless network and a WCDMA wireless network and/or a TD-SCDMA wireless network.
  • NNSF functionality in network sharing technology.
  • the present invention provides a method for selecting a core network operator in wireless network sharing, the method comprising:
  • the UE initiates a location update
  • the MGW receives and parses the location update request sent by the RNC/BSC, and selects the MSCS according to the parsed user identifier.
  • the selecting the MSCS according to the parsed user identifier includes: when the user identifier is In the case of TMSI, the NRI or NULL NRI is parsed, and then the MGW selects the MSCS according to the correspondence between the MSCS and the NRI; when the user identifier is the IMSI, or the NRI or NULL NRI is not resolved, the MGW performs route reselection.
  • the MGW performs route reselection, where: the MGW selects any one MSCS, and forwards the initial direct transmission location update request to the MGW; the MSCS acquires the IMSI of the UE, and determines whether to allow the UE to roam on the MSCS according to the IMSI. Returning the update reject message, the MGW intercepts the reject message and records the reject reason, and then reselects a new MSCS to send a location update request until the selected MSCS allows the UE to roam on the MSCS, and the MSCS returns a location update success message, and the MGW sends the message to the UE. Location update success message.
  • the MGW selects the MSCS according to the correspondence between the MSCS and the NRI, and selects the MSCS according to the parameter correspondence table in the MOCN networking mode configured on the MGW.
  • the parameter correspondence table of each parameter in the MOCN networking mode includes: a correspondence between a PLMN-ID, a NULL NRL MSCS, and an NRI.
  • the method further includes: when the MGW reselects, it is found that no MSCS is available for selection, and the recorded rejection reason is sent to the UE, and End the process.
  • the present invention also provides a system for selecting a core network operator in a wireless network sharing, where the system includes: a UE, an RNC/BSC, an MGW, and an MSCS, where
  • the UE is configured to initiate a location update
  • the MGW is configured to receive and parse a location update request sent by the RNC/BSC, and select an MSCS according to the parsed user identifier.
  • the MGW selects the MSCS according to the parsed user identifier, and includes: when the user identifier is the TMSI, parsing the NRI or the NULL NRI, and then the MGW selects the MSCS according to the correspondence between the MSCS and the NRI; when the user identifier is the IMSI, or When the NRI or NULL NRI is parsed, the MGW performs route reselection.
  • the MGW is further configured to perform routing reselection with the MSCS, where: the MGW selects any one MSCS, forwards the initial direct transmission location update request to the MGW, and the selected MSCS obtains the IMSI of the UE, and determines whether the UE is allowed to be in the IMSI according to the IMSI.
  • the MSCS roams, when not allowed, returns an update reject message; the MGW intercepts the reject message and records the reject reason, and then reselects a new MSCS to send a location update request until the selected MSCS allows the UE to roam on the MSCS, the selected MSCS Returning the location update success message, the MGW sends a location update success message to the UE.
  • the location update is initiated by the UE; the MGW receives and parses the location update request sent by the RNC/BSC, and selects the mobile switching center server according to the parsed user identifier.
  • MSCS Mobile Switching Center Server
  • the NNSF function can be implemented by connecting the RNC and/or the BSC through the MGW, thereby being compatible with the GSM network and the WCDMA network and/or the TD-SCDMA network.
  • the solution of the present invention does not require the RNC/BSC to participate in the implementation of the NNSF function, and implements the implementation of the RNC/BSC; further, the MGW and the MSCS are both on the core network side, and the access network side does not need to be modified to implement the wireless network.
  • the shared NNSF function therefore, the implementation of the present invention is very simple; and, if the implementation process of the NNSF function needs to be modified or debugged, it only needs to be performed on the core network side, and the implementation is more convenient.
  • FIG. 1 is a schematic diagram of an existing MSC POOL networking
  • FIG. 2 is a schematic flowchart of a RNC route reselection method in an existing WCDMA network
  • FIG. 3 is a schematic diagram of a networking for implementing an NNSF function by using an MGW
  • FIG. 4 is a schematic flowchart of a method for updating a location in a wireless network sharing according to the present invention
  • FIG. 5 is a schematic flowchart of a method for performing route reselection by an MGW according to the present invention
  • FIG. 6 is a schematic structural diagram of a system for location update in a wireless network sharing according to the present invention.
  • DETAILED DESCRIPTION OF THE INVENTION the following describes the routing re-selection process defined in the RNC utilization protocol in the WCDMA network, and selects the MSC of the operator, that is, the specific steps of the case (4) in the background art, and FIG. 2 shows the existing steps.
  • the flow chart of the RNC route reselection method in the WCDMA network as shown in FIG. 2, the steps of the RNC selecting the MSC of the operator specifically include:
  • Step 201 The UE establishes a wireless connection with the RNC.
  • Step 202 The UE sends an Initial Direct Transfer message to the RNC.
  • Step 203 The RNC receives the Initial Direct Transfer message sent by the UE, and the RNC cannot determine the MSC by using the information in the message. At this time, the RNC randomly selects an MSC, for example, MSC1, and sends an Initial UE message to the MSC1. Carrying a Reselect Attempt Flag (Redirect Attempt Flag);
  • Step 204 After receiving the Initial UE message, the MSCl needs to obtain an International Mobile Subscriber Identification Number (IMSI) of the UE, so as to determine whether the UE allows roaming in the carrier, if the MSC1 belongs to If the operator does not allow the UE to roam, the user network connection fails, and step 205 is performed;
  • IMSI International Mobile Subscriber Identification Number
  • the manner in which the user IMSI is obtained may be performed in a manner as defined in the prior art, such as a protocol.
  • Step 205 The MSC1 carries the Reroute Command information in the Initial UE message returned to the RNC, and requests the RNC to reselect the MSC, and also needs to carry the initial non-access stratum (NAS) carried in the previously received Initial UE message. ) information and the obtained user identification IMSI;
  • NAS non-access stratum
  • Step 206 the RNC reselects an unselected MSC, for example, MSC2, and carries the Redirect Attempt Flag, the NAS information, and the user identifier IMSI in the Initial UE message sent to the MSC2;
  • Step 207 The MSC2 determines according to the user IMSI, and allows the user to roam. MSC2 Then performing an authentication and encryption process;
  • Step 208 The MSC2 sends a location update message to the home location register (HLR) to which the UE belongs, where the location information of the UE in the HLR is updated or inserted, and the subscription data of the UE is obtained from the HLR.
  • HLR home location register
  • Step 209 Determine whether the UE's subscription information allows the UE to roam in the MSC2. If not, the MSC2 sends a message to the RNC to carry the Reroute Command information, and requests the RNC to reselect the MSC again, and needs to carry the Initial in step 206 in the message.
  • Step 210 the RNC again selects an unselected MSC, for example, MSC3, and carries the Redirect Attempt Flag, the NAS information, and the user identifier IMSI in the Initial UE message sent to the MSC3;
  • Step 211 The MSC3 determines according to the user identifier IMSI, allows the user to roam, and the MSC3 performs an authentication and encryption process.
  • Step 212 The MSC3 sends a location update message to the HLR to which the UE belongs, updates the location information of the UE in the HLR, and acquires subscription data of the UE from the HLR.
  • the subscription information of the UE allows the UE to roam in the MSC3. Assign a new temporary identifier TMSI, which contains the NRI of MSC3;
  • Step 213 The message sent by the MSC3 to the RNC carries the information of the route reselection (Reroute Complete), indicating that the RNC does not need to perform the route reselection process;
  • the Reroute Complete information carries the TMSI including the NRI.
  • Step 214 The RNC completes the location update, sends a location update message to the UE, and the UE saves the TMSI including the NRI.
  • the RNC can directly determine the MSC through the NRI.
  • the R4 phase MSC network element of the 3GPP is divided into two network elements: the MSCS and the Media Gateway (MGW). Therefore, the present invention utilizes the MGW to implement the NNSF function.
  • MGW1, MGW2, and MGW3 are respectively connected to MSCS1, MSCS2, and MSCS3 in the core network, and the MGW can be connected to different RNCs or BSCs to implement multiple BSCs. And / or RNC network sharing.
  • the location update is initiated by the UE; the MGW receives and parses the location update request sent by the RNC/BSC, and selects the MSCS according to the parsed user identifier.
  • FIG. 4 is a schematic flowchart of a method for updating a location in a wireless network sharing according to the present invention. As shown in FIG. 4, the method for updating a location specifically includes the following steps:
  • Step 401 The UE initiates a location update.
  • the UE initiates a location update process according to the prior art.
  • the reason for the UE to initiate the location update may be that the UE roams from the non-shared area into the shared area, or the UE performs cross-location area roaming in the shared area.
  • Step 402 The MGW receives and parses the location update request sent by the RNC/BSC, and selects the MSCS according to the parsed user identifier.
  • the MGW receives the initial direct transmission message that is sent by the user through the RNC/BSC and includes the location update request message. Before determining the destination MSCS, the MGW needs to parse the user identifier in the initial direct transmission location update request. When the user identifier is TMSI, the MGW parses the NRI information from the TMSI according to the fixed bit length: When the NRI information is the NRI supported in the MSC POOL, the MGW can find the destination according to the correspondence between the MSCS and the NRI in Table 1 below.
  • MSCS When the NRI information is a NULL NRI supported by the MSC POOL, the MGW needs to find the corresponding core network operator ID according to the NULL NRI in Table 1, and then according to the round selection, load sharing, etc. in the MSCS belonging to other core network operators.
  • the principle chooses MSCS; when the NRI information is not the above two In this case, the MGW needs to perform the route reselection process. For details, refer to FIG. 5 and the description of the corresponding embodiment.
  • the MGW needs to perform a route reselection process. For details, refer to FIG. 5 and the description of the corresponding embodiment.
  • step 402 the process of selecting the MSCS by the MGW according to the user identifier further includes: distributing the initial direct transmission location update request to the MSCS according to the parameter correspondence table of the MOCN networking.
  • the parameter mapping table of each parameter in the MOCN networking mode is configured on the MGW.
  • the relationship table includes: a correspondence between PLMN-ID, NULL NRL MSCS, and NRI.
  • PLMN-ID corresponds to only one NULL NRI
  • one PLMN-ID can correspond to one to multiple MSCSs
  • one MSCS can correspond to one to multiple NRIs.
  • the location update request for initial direct transmission is distributed to the MSCS according to the correspondence relationship of Table 1.
  • the MGW may connect multiple BSCs, and/or multiple MSCs, and corresponding to multiple MSCs from the perspective of a single BSC, so the ground circuit of the BSC may be used by multiple MSCs. Use together.
  • the circuit management at this time needs to be completed by the MGW according to the prior art.
  • FIG. 5 is a schematic flowchart of a method for performing route reselection by an MGW according to the present invention. As shown in FIG. 5, the method specifically includes the following steps:
  • Step 501 The MGW saves an initial direct transmission message received from the RNC/BSC.
  • the UE establishes a wireless connection with the RNC/BSC, and then sends an Initial Direct Transfer message to the RNC/BSC. After receiving the Initial Direct Transfer message, the RNC/BSC sends an Initial UE message to the MGW.
  • the Initial UE message of the initial direct transmission carries a location update request.
  • Step 502 The MGW forwards the Initial UE message to the MSCS.
  • the MGW may arbitrarily select an MSCS, for example, MSCS1, and forward the initial Direct-transmitted Initial UE message to the MGW through the parameter mapping table of the MOCN network, and further process the MGW.
  • MSCS for example, MSCS1
  • the MGW also needs to monitor the message with the MSCS, and continuously update the non-access stratum sequence number (NSD) in the message, and the sequence number is used to determine whether the interactive message is duplicated or lost.
  • NSD non-access stratum sequence number
  • Step 503 The MSCS1 sends a user identity request to the UE.
  • the MSCS1 sends a user identity request to the UE through the MGW to obtain the IMSL of the UE.
  • Step 504 The UE returns user identifier response information.
  • the user identifier response information carries the IMSI.
  • Step 505 The MGW acquires and saves the IMSI of the UE.
  • the MGW monitors the message between the MSCS and the RNC/BSC to obtain the IMSI and saves it.
  • Step 506 the MSCS1 determines whether the UE is allowed to roam on the MSCS, if the MSCS1 The user is not allowed to roam. MSCS1 sends a location update reject message to the MGW and carries the reason for the rejection.
  • the location update rejection reason value is one or more of the following:
  • the MGW needs to record the above rejection reason and intercept the location update rejection message. If the location update rejection reason is not the above reason, the MGW needs to send the MSCS location update reject message to the UE through the RNC/BSC, the user location update fails, and the process ends.
  • Step 507 the MGW sends an initial direct transmission location update request including the user IMSI to the newly selected MSCS2;
  • the MGW needs to select an unselected MSCS according to the parameter correspondence table of the MOCN network.
  • the MGW needs to replace the TMSI with the IMSI obtained in step 505, or the IMSI of the UE is already saved in the MGW, and the IMSI can be directly carried in the In the initial direct transmission location update request sent to MSCS2, this can prevent the newly selected MSC from acquiring the user IMSI from the UE again.
  • the MGW needs to save the latest NSD, and modify the NSD information in the saved initial direct transfer location update request.
  • Step 508 The MSCS2 allows the UE to roam on the MSCS, performs authentication and encryption, and obtains subscription data of the UE from the HLR.
  • the subscription information of the UE does not allow the UE to roam in the MSC3, and the MSCS2 sends a location update reject message to the user. And carry the reason for rejection;
  • the reason for rejection corresponds to the aforementioned 11: PLMN is not allowed.
  • Step 509 the MSCS2 sends a location update reject message to the MGW, and carries the reason for the rejection; Step 510 to step 514, the MGW records the new rejection reason, and then selects the new MSCS transmission location update request again. If there is no update rejection reason, the MSCS returns a location update success message, and the MGW sends a location update success message to the UE.
  • the MGW finds that no MSCS is available for selection when reselecting the MSCS, the user location update fails. At this time, the MGW needs to send the most important one of the recorded rejection reasons to the UE, and the MSCS reselection process ends. The location update process ends. Among them, the number of times is the most, or according to the actual situation of the network.
  • the paging message includes the global identifier (Global CN ID) of the MSCS, and the MGW needs to further expand the table 1 to record the correspondence between the IMSI and the Global CN ID.
  • the MGW receives the paging response message sent by the UE, it needs to find the Global CN ID according to the IMSI, and then complete the message distribution of the initial direct transmission message including the paging response message according to the corresponding relationship between the configured Global CN ID and the MSCS.
  • FIG. 6 is a schematic structural diagram of a system for location update in a wireless network sharing. As shown in FIG. 6, the system includes: UE61, RNC/BSC62, MGW63, and MSCS64, where MGW63 and MSCS64 are located on the core network side, where
  • the UE61 is configured to initiate a location update.
  • the UE 61 initiates a location update process according to the prior art.
  • the reason for initiating the location update may be that the UE 61 roams from the non-shared area into the shared area, or the UE 61 performs cross-location area roaming in the shared area.
  • the RNC/BSC62 is configured to forward a message between the UE 61 and the MGW 63.
  • the MGW can connect multiple BSCs, and/or multiple MSCs, and corresponding multiple MSCs from the perspective of a single BSC, so the ground circuit of the BSC can be used by multiple MSCs.
  • the circuit management at this time needs to be completed by the MGW in accordance with the prior art.
  • the MGW 63 is configured to receive and parse a location update request sent by the RNC/BSC, where Select MSCS64 according to the user identification;
  • the MGW 63 receives the initial direct transmission message that is sent by the user via the RNC/BSC 62 and includes the location update request message. Before determining the destination MSCS64, the MGW 63 needs to parse the user identifier in the initial direct transmission message. When the user identifier is TMSI, the MGW 63 parses the NRI information from the TMSI according to the fixed bit length: When the NRI information is the NRI supported in the MSC POOL, the MGW may find the destination according to the correspondence between the MSCS64 and the NRI in Table 1 above.
  • the MGW 63 When the NRI information is a NULL NRI supported by the MSC POOL, the MGW 63 needs to find the corresponding core network operator ID according to the NULL NRI in Table 1, and then according to the round selection, load sharing, etc. in the MSCS64 belonging to other core network operators.
  • the MSGW 64 is selected in principle; when the NRI information is not in the above two cases, the MGW 63 needs to perform a route reselection process; when the user identity is the IMSI, the MGW 63 needs to perform a route reselection process.
  • the location update request for initial direct transmission to the MSCS64 is completed.
  • the MGW 63 is further configured to complete routing reselection with the MSCS64.
  • the MGW 63 saves the initial direct transmission message received from the RNC/BSC 62; selects any one MSCS 64, and forwards the initial direct transmission location update request thereto; the selected MSCS 64 acquires the IMSI of the UE 61, and the selected MSCS 64 determines whether to allow the UE 61 according to the IMSI. Roaming on the MSCS 64, if not allowed, returning an update reject message; the MGW 63 intercepts the reject message and records the reason for the rejection, and then reselects a new MSCS 64 to send a location update request until the currently selected MSCS 64 allows the UE 61 to roam on the MSCS 64. The selected MSCS 64 returns a location update success message, and the MGW 63 sends a location update success message to the UE 61.
  • the MGW63 If the MGW63 re-selects the MSCS64 and finds that no MSCS64 is available for selection, the user location update fails. At this time, the MGW63 needs to send the most important one of the recorded rejection reasons to the UE61, and the MSCS64 reselection process ends. The update process ends. Further, when the MSCS 64 needs to page the UE 61 through the IMSI, the paging message includes the Global CN ID of the MSCS 64. The MGW 63 needs to further expand Table 1 to record the correspondence between the IMSI and the Global CN ID.
  • the MGW 63 When the MGW 63 receives the paging response message sent by the UE 61, it needs to find the Global CN ID according to the IMSI, and then complete the message distribution of the initial direct transmission message including the paging response message according to the corresponding relationship between the configured Global CN ID and the MSCS.

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Description

一种无线网络共享中选择核心网运营商的方法和系统 技术领域
本发明涉及第二代(Second Generation, 2G )移动通信网络和第三代 Ord-Generation, 3G )移动通信网络共享技术, 特别是指一种无线网络共 享中选择核心网运营商的方法和系统。 背景技术
宽带码分多址接入( Wideband Code Division Multiple Access, WCDMA ) 网络中的网络共享技术, 是一种能够允许不同网络运营商之间共享一部分 WCDMA 网元的技术。 当前存在多种网络共享的解决方案, 其中一种重要 的网络共享方式为: 各运营商分别建设独立的核心网, 但是共享无线接入 网( Radio Access Network, RAN )和频段。这种网络共享方式主要涉及 3GPP TS 23.236标准中引入的移动交换中心池 ( Mobile Switching Center Pool, MSC POOL )组网方式、 以及 3GPP TS 23.251 中引入的多运营商核心网 ( Multi-Operator Core Network, MOCN )组网方式。 另夕卜, 所述共享方式 同样适用于时分同步码分多址接入 ( Time Division-Synchronous Code Division Multiple Access, TD-SCDMA ) 网络。
MSC POOL 组网方式的引入, 打破了以往无线网络控制器 (Radio Network Controller, RNC ) 只能被一个核心网节点 MSC控制的关系, 一个 RNC可接入多个 MSC, 这多个 MSC可组成一个池, 称为 MSC POOL; 该 MSC POOL下所有 RNC管辖的无线区域成为 MSC POOL的服务区域, 具 体组网示意图可参见图 1 , RNC1、 RNC2以及 RNC3均可分别接入 MSC1、 或 MSC2、 或 MSC3。
当用户首次漫游到 MSC POOL 的服务区域时, 用户设备 (User Equipment, UE )会发起位置更新过程, RNC 则可以根据特定的原则, 例 如负荷均衡, 为用户分配一个 MSC。 该 MSC则会在位置更新过程完成时, 给用户分配一个临时识别标识 ( Temporary Mobile Subscriber Identity , TMSI ),在 TMSI中会包含该 MSC特有的网络资源标识( Network Resource Identifier, NRI )。后续当 UE使用含有 NRI的 TMSI发起位置更新或者业务 接入过程时, RNC可根据 NRI找到先前为此 UE服务的 MSC。 此外对于一 个 MSC POOL,还存在一种特殊的 NRI,称为网络资源空标识( NULL NRI )。 如果 MSC为某用户分配的 TMSI中含有 NULL NRI,这意味着此特定 MSC 出于网络运营、 负荷水平等方面的原因, 不希望该用户在此 MSC中驻留。 这样, 当用户再次使用含有 NULL NRI的 TMSI接入网络时, RNC需要根 据特定的原则, 例如负荷均衡, 重新为用户选择 MSC。 这个过程称为负荷 卸载过程。
MOCN组网方式则定义了不同的 MSC连接到同一个 RNC, RNC由各 运营商共享而 MSC分别由不同运营商运营的组网方式。这种组网方式需要 在 MSC POOL组网的基础上实现, 并对原有的 MSC POOL组网中 RNC为 用户选择 MSC节点的功能( NAS Node Selection Function, NNSF ), 即在位 置更新中选择核心网运营商的方法有所修改。
所述 MOCN组网方式下的 NNSF具体包括: 当用户准备进行位置更新 或者准备发起业务时, UE会发送初始直传 ( Initial Direct Transfer ) 消息给 RNC, 此时 RNC需要根据不同情况为用户选择 MSC:
(1)当 UE使用含有 NRI的 TMSI接入 WCDMA或 TD-SCDMA网络时, RNC可根据 NRI直接找到对应运营商的 MSC;
(2)当 UE使用含有 NULL NRI的 TMSI接入 WCDMA或 TD-SCDMA 网络时, RNC则需要判断 NULL NRI归属于哪一个运营商, 并在归属于其 他该运营商的 MSC中选择一个 MSC, 这就要求 RNC在一个 MSC POOL 中能够支持多个 NULL NRI , 每个 NULL NRI与核心网运营商——对应;
(3)当 UE不使用 TMSI接入网络,但用户接入消息中包含用户自行选择 的核心网运营商标口、 ( Public Land Mobile communication Network- ID , PLMN-ID ) 时, RNC需要在归属该运营商的 MSC中选择一个 MSC;
(4)如果通过以上方法, RNC仍无法选择 MSC时, RNC则需要通过协 议中定义的路由重选过程替 UE选择运营商的 MSC。
但是,对于采用 MOCN组网方式的网络共享方法中,需要 MSC和 RNC 配合才能够完成 NNSF功能,现有网络中并不是所有的 RNC都支持这项功 能, 并且针对 GSM网络中的基站控制器(Base Station Controller, BSC ), 并没有相关的网络共享的描述,而实际应用中运营商仍存在共享 GSM网络 的需求。 在现有网络中, 即在 GSM 网络以及 WCDMA 网络、 和 /或 TD-SCDMA网络中, 如何通过最少的改动实现网络共享技术中的 NNSF功 能, 是运营商极为关注的问题。 发明内容
有鉴于此, 本发明的主要目的在于提供一种无线网络共享中选择核心 网运营商的方法和系统, 能够在不改造 GSM无线网络以及 WCDMA无线 网络和 /或 TD-SCDMA无线网络的前提下, 实现网络共享技术中的 NNSF 功能。
为达到上述目的, 本发明的技术方案是这样实现的:
本发明提供了一种无线网络共享中选择核心网运营商的方法, 所述方 法包括:
UE发起位置更新;
MGW接收并解析经过 RNC/BSC发来的位置更新请求, 根据解析出的 用户标识选择 MSCS。
其中, 所述根据解析出的用户标识选择 MSCS, 包括: 当用户标识是 TMSI时, 解析出 NRI或 NULL NRI, 然后 MGW根据 MSCS与 NRI的对 应关系选择 MSCS; 当用户标识是 IMSI , 或没有解析出 NRI或 NULL NRI 时, MGW执行路由重选。
其中, 所述 MGW执行路由重选, 为: MGW选择任意一个 MSCS, 向 其转发初始直传的位置更新请求; MSCS获取 UE的 IMSI, 根据 IMSI判断 是否允许 UE在本 MSCS上漫游, 不允许时, 返回更新拒绝消息, MGW拦 截拒绝消息并记录拒绝原因,然后重选一个新的 MSCS发送位置更新请求, 直至所选 MSCS允许 UE在本 MSCS上漫游, MSCS返回位置更新成功消 息, MGW向 UE发送位置更新成功消息。
其中, 所述 MGW根据 MSCS与 NRI的对应关系选择 MSCS, 为: 根 据配置在 MGW上的 MOCN组网方式下各参数对应关系表选择 MSCS。
其中, 所述 MOCN组网方式下各参数对应关系表, 包括: PLMN-ID、 NULL NRL MSCS和 NRI的对应关系。
其中, 所述 MGW重选一个新的 MSCS发送位置更新请求的过程中, 所述方法还包括: 当 MGW重选时发现已无 MSCS可供选择, 则将已记录 的拒绝原因发送给 UE, 并结束流程。
本发明还提供了一种无线网络共享中选择核心网运营商的系统, 所述 系统包括: UE、 RNC/BSC, MGW和 MSCS, 其中,
所述 UE, 用于发起位置更新;
所述 MGW, 用于接收并解析经过 RNC/BSC发来的位置更新请求, 根 据解析出的用户标识选择 MSCS。
其中, 所述 MGW根据解析出的用户标识选择 MSCS, 包括: 当用户 标识是 TMSI时,解析出 NRI或 NULL NRI,然后 MGW根据 MSCS与 NRI 的对应关系选择 MSCS; 当用户标识是 IMSI , 或没有解析出 NRI或 NULL NRI时, MGW执行路由重选。 其中, 所述 MGW, 还用于配合 MSCS执行路由重选, 为: MGW选择 任意一个 MSCS, 向其转发初始直传的位置更新请求, 所选 MSCS获取 UE 的 IMSI, 根据 IMSI判断是否允许 UE在本 MSCS上漫游, 不允许时, 返 回更新拒绝消息; MGW拦截拒绝消息并记录拒绝原因, 然后重选一个新的 MSCS发送位置更新请求, 直至所选 MSCS允许 UE在本 MSCS上漫游, 所选 MSCS返回位置更新成功消息, MGW向 UE发送位置更新成功消息。
本发明所提供的无线网络共享中选择核心网运营商的方法和系统, 通 过 UE发起位置更新; MGW接收并解析经 RNC/BSC发送的位置更新请求, 根据解析出的用户标识选择移动交换中心服务器(Mobile Switching Center Server, MSCS ); 如此, 能够通过 MGW连接 RNC和 /或 BSC实现 NNSF 功能, 从而兼容了 GSM网络以及 WCDMA网络和 /或 TD-SCDMA网络。 同时, 采用本发明的方案无需 RNC/BSC参与 NNSF功能的实现, 筒化了 RNC/BSC的实现; 进一步的, MGW和 MSCS都在核心网侧, 接入网侧无 需改造, 即可实现无线网络共享的 NNSF功能, 因此本发明的实现非常筒 单; 并且, 如果需要对 NNSF功能的实现过程进行修改或调试, 只需在核 心网侧进行, 实现也更加方便。 附图说明
图 1为现有的 MSC POOL组网示意图;
图 2为现有的 WCDMA网络中 RNC路由重选方法流程示意图; 图 3为本发明利用 MGW实现 NNSF功能的组网示意图;
图 4为本发明无线网络共享中位置更新的方法流程示意图;
图 5为本发明 MGW执行路由重选的方法流程示意图;
图 6为本发明无线网络共享中位置更新的系统结构示意图。 具体实施方式 为了更好的理解本发明, 先介绍一下 WCDMA网络中 RNC利用协议 中定义的路由重选过程选择运营商的 MSC, 即背景技术中情况 (4)的具体步 骤, 图 2为现有的 WCDMA网络中 RNC路由重选方法流程示意图, 如图 2 所示, RNC选择运营商的 MSC的步骤具体包括:
步骤 201 , UE与 RNC建立无线连接;
步骤 202 , UE发送 Initial Direct Transfer消息给 RNC;
步骤 203 , RNC收到 UE发送的 Initial Direct Transfer消息, RNC无法 通过所述消息中的信息确定 MSC, 此时 RNC 随机选取一个 MSC, 例如 MSC1 , 并且在发送给 MSC1的初始 UE ( Initial UE ) 消息中携带路由重选 尝试标识 ( Redirect Attempt Flag ) ;
步骤 204, MSCl收到 Initial UE消息后, 需要获取 UE的国际移动用 户识另 ll码 ( International Mobile Subscriber Identification Number, IMSI ), 以 便确定所述 UE在本运营商中是否允许漫游, 如果 MSC1 归属的运营商不 允许该 UE漫游, 则用户网络附着会失败, 执行步骤 205;
具体的,获取用户 IMSI的方式可按照现有技术例如协议中定义的方式 进行。
步骤 205, MSC1 在返回给 RNC 的 Initial UE 消息中携带路由重选 ( Reroute Command )信息, 要求 RNC重新选择 MSC, 并且还需要携带之 前接收到的 Initial UE消息中携带的初始非接入层( NAS )信息以及已得到 的用户标识 IMSI;
步骤 206, RNC重新选择一个未选择过的 MSC, 例如 MSC2, 在发送 给 MSC2的 Initial UE消息中携带 Redirect Attempt Flag, NAS信息以及用 户标识 IMSI;
步骤 207, MSC2根据用户 IMSI进行判断, 允许该用户漫游。 MSC2 则执行鉴权和加密过程;
步骤 208, MSC2向 UE所属的归属位置寄存器( HLR )发送位置更新 消息, 在其中更新或插入 UE在 HLR中的位置信息, 并且从 HLR中获取 UE的签约数据;
步骤 209, 判断 UE的签约信息是否允许该 UE在 MSC2中漫游, 如果 不允许, MSC2发送给 RNC携带 Reroute Command信息的消息, 再次要求 RNC重新选择 MSC , 并且需要在消息中携带步骤 206中的 Initial UE消息 中携带的 NAS信息以及用户标识 IMSI;
步骤 210, RNC再次重新选择一个未选择过的 MSC, 例如 MSC3 , 在 发送给 MSC3的 Initial UE消息中携带 Redirect Attempt Flag, NAS信息以 及用户标识 IMSI;
步骤 211 , MSC3根据用户标识 IMSI进行判断,允许该用户漫游, MSC3 则执行鉴权和加密过程;
步骤 212, MSC3向 UE所属的 HLR发送位置更新消息, 更新 UE在 HLR中的位置信息, 并且从 HLR中获取 UE的签约数据, UE的签约信息 允许该 UE在 MSC3中漫游, 此时需向 UE分配新的临时标识 TMSI , 其中 包含了 MSC3的 NRI;
步骤 213, MSC3 发送给 RNC 的消息中携带路由重选完成(Reroute Complete )信息, 指示 RNC无需再进行路由重选过程;
其中, Reroute Complete信息中携带了包含 NRI的 TMSI。
步骤 214, RNC完成位置更新, 将位置更新消息发送给 UE, UE保存 包含 NRI的 TMSI。
进一步的, 下次 UE发起业务或者进行位置更新过程时, RNC则可直 接通过 NRI确定 MSC。
通过上述步骤可以看出, 现有的 NNSF功能必须通过 RNC完成。 在 3GPP的 R4阶段 MSC网元被分为 MSCS和媒体网关(Media Gate Way, MGW )两个网元, 因此, 本发明利用 MGW实现 NNSF功能, 具体组网示 意图可参见图 3, 图 3为本发明利用 MGW实现 NNSF功能的组网示意图, 如图 3所示,在核心网中 MGW1、MGW2和 MGW3分别与 MSCS1、MSCS2 和 MSCS3相连, MGW进而可以连接不同的 RNC或 BSC,实现了多个 BSC, 和 /或 RNC的网络共享。
本发明的基本思想是: 由 UE 发起位置更新; MGW接收并解析经 RNC/BSC发送的位置更新请求, 根据解析出的用户标识选择 MSCS。
下面结合附图和具体实施例对本发明的技术方案进一步详细阐述。 图 4为本发明一种无线网络共享中位置更新的方法流程示意图,如图 4 所示, 所述位置更新的方法具体包括以下步骤:
步骤 401 , UE发起位置更新;
具体的, UE按现有技术发起位置更新流程, UE发起位置更新的原因 可以是 UE从非共享区漫游进入共享区,或者 UE在共享区进行跨位置区漫 游等。
步骤 402, MGW接收并解析经 RNC/BSC发送的位置更新请求, 根据 解析出的用户标识选择 MSCS。
具体的, MGW收到用户经 RNC/BSC发送的包含位置更新请求消息的 初始直传消息, 在确定目的 MSCS之前, MGW需要在初始直传的位置更 新请求中解析出用户标识。 当用户标识为 TMSI时, MGW从此 TMSI中按 照固定位长解析出 NRI信息: 当 NRI信息为 MSC POOL内支持的 NRI时, MGW可按照如下述表 1中的 MSCS与 NRI的对应关系,找到目的 MSCS; 当 NRI信息为 MSC POOL内支持的 NULL NRI时, MGW需根据表 1中 NULL NRI找到对应的核心网运营商 ID , 然后在属于其他核心网运营商的 MSCS中根据轮选、 负荷分担等原则选择 MSCS; 当 NRI信息不为上述两 种情况时, MGW需要执行路由重选过程, 具体参见图 5及相应实施例的描 述; 当用户标识为 IMSI时, MGW需要执行路由重选过程, 具体参见图 5 及相应实施例的描述。
进一步的, 步骤 402中, MGW根据用户标识选择 MSCS的过程中还 包括: 根据 MOCN组网下各参数对应关系表, 完成向 MSCS分发初始直传 的位置更新请求。
具体的, 首先在 MGW上配置 MOCN组网方式下各参数对应关系表, 如表 1所示, 所述关系表中包括: PLMN-ID、 NULL NRL MSCS, NRI的 对应关系。其中,一个 PLMN-ID只与一个 NULL NRI对应;一个 PLMN-ID 可与一个到多个 MSCS对应; 一个 MSCS可与一个到多个 NRI对应。
Figure imgf000011_0001
表 1
然后, 根据解析出的用户标识, 按照表 1的对应关系完成向 MSCS分 发初始直传的位置更新请求。
进一步的, 本发明中 MGW可以连接多个 BSC, 和 /或多个 MSC, 从单 独一个 BSC的角度看对应了多个 MSC,因此 BSC的地面电路会被多个 MSC 共同使用。 此时的电路管理需要按照现有技术由 MGW完成。
图 5为本发明 MGW执行路由重选的方法流程示意图, 如图 5所示, 所述方法具体包括以下步骤:
步骤 501 , MGW保存从 RNC/BSC收到的初始直传消息;
具体的, UE与 RNC/BSC建立无线连接,然后发送 Initial Direct Transfer 消息给 RNC/BSC。 RNC/BSC接收到 Initial Direct Transfer消息后, 发送初 始直传的 Initial UE消息给 MGW。 其中, 所述初始直传的 Initial UE消息中 携带位置更新请求。
步骤 502 , MGW向 MSCS转发 Initial UE消息;
具体的, MGW可以通过配置在其中的 MOCN组网下各参数对应关系 表,任意选择一个 MSCS,例如 MSCS1并向其转发所述初始直传的 Initial UE 消息, 由 MGW进一步处理。
进一步的, MGW还需要监视与 MSCS之间的消息, 持续更新消息中 的非接入层序列号(NSD ), 该序列号用来判断交互的消息是否有重复或丟 失。
步骤 503 , MSCS1向 UE发送用户标识请求;
具体的, MSCS1经过 MGW向 UE发送用户标识请求, 来获取 UE的 IMSL
步骤 504 , UE返回用户标识响应信息;
具体的, 所述用户标识响应信息中携带了 IMSI。
步骤 505 , MGW获取并保存 UE的 IMSI;
具体的, 如果 MGW已经保存了 UE的 IMSI, 则跳过此步骤, 执行步 骤 506,如果 MGW尚未获得用户 IMSI, MGW通过监视 MSCS与 RNC/BSC 之间的消息以便获取 IMSI并保存。
步骤 506, MSCS1判断是否允许 UE在本 MSCS上漫游, 若 MSCS1 不允许用户漫游, MSCS1会向 MGW发送位置更新拒绝消息, 并携带拒绝 原因;
进一步的, 位置更新拒绝原因值为以下几种中的一种或几种:
11: PLMN不允许;
12: 位置区不允许;
13: 位置区漫游不允许;
15: 没有合适的小区。
MGW需要记录上述拒绝原因, 并拦截此位置更新拒绝消息。如果位置 更新拒绝原因并非上述原因, MGW需要将 MSCS的位置更新拒绝消息通 过 RNC/BSC发送给 UE, 用户位置更新失败, 流程结束。
步骤 507, MGW将包含有用户 IMSI的初始直传的位置更新请求发送 给新选择的 MSCS2;
具体的, MGW需要再次根据 MOCN组网下各参数对应关系表, 选择 一个未选择过的 MSCS。
进一步的, 如果 MGW保存的初始直传消息中, 用户标识为 TMSI, MGW需要将此 TMSI替换为步骤 505中得到的 IMSI, 或者 MGW中已经 保存了 UE的 IMSI, 可以直接将 IMSI携带在所述发送给 MSCS2的初始直 传的位置更新请求中, 这样可以避免新选择的 MSC再次从 UE获取用户 IMSI。 此外 MGW需保存的最新 NSD, 修改保存的初始直传的位置更新请 求中的 NSD信息。
步骤 508, MSCS2允许 UE在本 MSCS上漫游, 则进行鉴权加密, 并 从 HLR中获取 UE的签约数据,UE的签约信息不允许该 UE在 MSC3中漫 游, MSCS2会向用户发送位置更新拒绝消息, 并携带拒绝原因;
具体的, 拒绝原因对应前述的 11 : PLMN不允许。
步骤 509, MSCS2向 MGW发送位置更新拒绝消息, 并携带拒绝原因; 步骤 510~步骤 514, MGW记录新的拒绝原因,然后再次选择新的 MSCS 发送位置更新请求, 不存在更新拒绝原因的情况下, MSCS 返回位置更新 成功消息, MGW向 UE发送位置更新成功消息。
进一步的, 如果 MGW在重新选择 MSCS的时候发现已无 MSCS可供 选择, 则用户位置更新失败, 此时 MGW需要将已记录的拒绝原因中最主 要的一个发送给 UE, MSCS重选过程结束, 位置更新流程结束。 其中, 所 次数最多, 或者根据网络的实际情况制定。
进一步的, 当 MSCS需要通过 IMSI寻呼 UE时, 寻呼消息中会包含该 MSCS的全局标识( Global CN ID ), MGW此时需要进一步扩充表 1 , 来记 录 IMSI与 Global CN ID的对应关系。 当 MGW收到 UE发送的寻呼响应消 息时, 需要根据 IMSI找到 Global CN ID, 再根据配置的 Global CN ID与 MSCS的对应关系完成对包含寻呼响应消息的初始直传消息的消息分发。
图 6为一种无线网络共享中位置更新的系统结构示意图, 如图 6所示, 所述系统包括: UE61、 RNC/BSC62 , MGW63 和 MSCS64 , MGW63 和 MSCS64位于核心网侧, 其中,
所述 UE61 , 用于发起位置更新;
具体的, UE61按现有技术发起位置更新流程, 发起位置更新的原因可 以是 UE61从非共享区漫游进入共享区,或者 UE61在共享区进行跨位置区 漫游等。
所述 RNC/BSC62, 用于转发 UE61和 MGW63之间的消息;
具体的, 本发明中 MGW可以连接多个 BSC, 和 /或多个 MSC, 从单独 一个 BSC的角度看对应了多个 MSC, 因此 BSC的地面电路会被多个 MSC 共同使用。 此时的电路管理需要按照现有技术由 MGW完成。
所述 MGW63, 用于接收并解析经 RNC/BSC发送的位置更新请求, 根 据用户标识选择 MSCS64;
具体的, MGW63收到用户经 RNC/BSC62发送的包含位置更新请求消 息的初始直传消息, 在确定目的 MSCS64之前, MGW63需要在初始直传 消息中解析出用户标识。 当用户标识为 TMSI时, MGW63从此 TMSI中按 照固定位长解析出 NRI信息: 当 NRI信息为 MSC POOL内支持的 NRI时, MGW 可按照如前述表 1 中的 MSCS64 与 NRI 的对应关系, 找到目的 MSCS64; 当 NRI信息为 MSC POOL内支持的 NULL NRI时, MGW63需 根据表 1中 NULL NRI找到对应的核心网运营商 ID , 然后在属于其他核心 网运营商的 MSCS64中根据轮选、 负荷分担等原则选择 MSCS64; 当 NRI 信息不为上述两种情况时, MGW63需要执行路由重选过程; 当用户标识为 IMSI时, MGW63需要执行路由重选过程。 根据 MOCN组网下各参数对应关系表,完成向 MSCS64分发初始直传的位 置更新请求。
进一步的, 所述 MGW63还用于配合 MSCS64完成路由重选。
具体的, MGW63保存从 RNC/BSC62收到的初始直传消息; 选择任意 一个 MSCS64,向其转发初始直传的位置更新请求;所选 MSCS64获取 UE61 的 IMSI, 所选 MSCS64根据 IMSI判断是否允许 UE61在本 MSCS64上漫 游, 如果不允许, 则返回更新拒绝消息; MGW63拦截拒绝消息并记录拒绝 原因, 然后重选一个新的 MSCS64 发送位置更新请求, 直至当前所选 MSCS64允许 UE61在本 MSCS64上漫游, 所选 MSCS64返回位置更新成 功消息, MGW63向 UE61发送位置更新成功消息。
其中, 如果 MGW63在重新选择 MSCS64时, 发现已无 MSCS64可供 选择, 则用户位置更新失败, 此时 MGW63需要将已记录的拒绝原因中最 主要的一个发送给 UE61 , MSCS64重选过程结束, 位置更新流程结束。 进一步的, 当 MSCS64需要通过 IMSI寻呼 UE61时, 寻呼消息中会包 含该 MSCS64的 Global CN ID, MGW63此时需要进一步扩充表 1 , 来记录 IMSI与 Global CN ID的对应关系。 当 MGW63收到 UE61发送的寻呼响应 消息时, 需要根据 IMSI找到 Global CN ID, 再根据配置的 Global CN ID与 MSCS的对应关系完成对包含寻呼响应消息的初始直传消息的消息分发。
以上所述, 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、 等同替换和改进 等, 均应包含在本发明的保护范围之内。

Claims

权利要求书
1、 一种无线网络共享中选择核心网运营商的方法, 其特征在于, 所述 方法包括:
用户设备(UE )发起位置更新;
媒体网关 (MGW ) 接收并解析经过无线网络控制器 /基站控制器 ( RNC/BSC )发来的位置更新请求, 根据解析出的用户标识选择移动交换 中心服务器(MSCS )。
2、 根据权利要求 1所述的方法, 其特征在于, 所述根据解析出的用户 标识选择 MSCS, 包括:
当用户标识是临时识别标识(TMSI )时, 解析出网络资源标识(NRI ) 或网络资源空标识( NULL NRI ), 然后 MGW根据 MSCS与 NRI的对应关 系选择 MSCS;
当用户标识是国际移动用户识别码( IMSI ) ,或没有解析出 NRI或 NULL NRI时, MGW执行路由重选。
3、 根据权利要求 2所述的方法, 其特征在于, 所述 MGW执行路由重 选, 为: MGW选择任意一个 MSCS, 向其转发初始直传的位置更新请求; MSCS获取 UE的 IMSI, 根据 IMSI判断是否允许 UE在本 MSCS上漫游, 不允许时, 返回更新拒绝消息, MGW拦截拒绝消息并记录拒绝原因, 然后 重选一个新的 MSCS发送位置更新请求, 直至所选 MSCS允许 UE在本 MSCS上漫游, MSCS返回位置更新成功消息, MGW向 UE发送位置更新 成功消息。
4、 根据权利要求 2或 3所述的方法, 其特征在于, 所述 MGW根据 MSCS与 NRI的对应关系选择 MSCS, 为: 根据配置在 MGW上的多运营 商核心网 (MOCN )组网方式下各参数对应关系表选择 MSCS。
5、 根据权利要求 4所述的方法, 其特征在于, 所述 MOCN组网方式 下各参数对应关系表, 包括: 核心网运营商标识(PLMN-ID )、 NULL NRL MSCS和 NRI的对应关系。
6、 根据权利要求 3所述的方法, 其特征在于, 所述 MGW重选一个新 的 MSCS发送位置更新请求的过程中, 所述方法还包括: 当 MGW重选时 发现已无 MSCS可供选择,则将已记录的拒绝原因发送给 UE,并结束流程。
7、 一种无线网络共享中选择核心网运营商的系统, 其特征在于, 所述 系统包括: UE、 RNC/BSC, MGW和 MSCS, 其中,
所述 UE, 用于发起位置更新;
所述 MGW, 用于接收并解析经过 RNC/BSC发来的位置更新请求, 根 据解析出的用户标识选择 MSCS。
8、 根据权利要求 7所述的系统, 其特征在于, 所述 MGW根据解析出 的用户标识选择 MSCS, 包括:
当用户标识是 TMSI时, 解析出 NRI或 NULL NRI, 然后 MGW根据 MSCS与 NRI的对应关系选择 MSCS; 当用户标识是 IMSI , 或没有解析出 NRI或 NULL NRI时, MGW执行路由重选。
9、 根据权利要求 8所述的系统, 其特征在于, 所述 MGW, 还用于配 合 MSCS执行路由重选, 为: MGW选择任意一个 MSCS, 向其转发初始直 传的位置更新请求, 所选 MSCS获取 UE的 IMSI, 根据 IMSI判断是否允 许 UE在本 MSCS上漫游, 不允许时, 返回更新拒绝消息; MGW拦截拒绝 消息并记录拒绝原因, 然后重选一个新的 MSCS发送位置更新请求, 直至 所选 MSCS允许 UE在本 MSCS上漫游, 所选 MSCS返回位置更新成功消 息, MGW向 UE发送位置更新成功消息。
10、 根据权利要求 8或 9所述的系统, 其特征在于, 所述 MGW根据 MSCS与 NRI的对应关系选择 MSCS , 为: 根据配置在 MGW上的 MOCN 组网方式下各参数对应关系表选择 MSCS。
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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102014365B (zh) * 2010-11-04 2015-01-28 中兴通讯股份有限公司 一种无线网络共享中选择核心网运营商的方法和系统
CN102571582B (zh) * 2012-01-09 2014-11-05 华为技术有限公司 重路由的方法、系统及接入网设备
EP2916594B1 (en) * 2012-11-23 2017-03-08 Huawei Technologies Co., Ltd. User equipment registration method and radio network controller
CN104735679B (zh) * 2013-12-23 2018-06-26 中国移动通信集团上海有限公司 Femto网关接入核心网池的方法、网关及网络构架
KR102385539B1 (ko) * 2015-03-02 2022-04-12 삼성전자 주식회사 무선 통신 시스템에서 서비스 제공 방법 및 장치
WO2016165136A1 (zh) * 2015-04-17 2016-10-20 华为技术有限公司 一种处理通讯请求消息的方法和装置
EP3364694B1 (en) * 2015-12-16 2019-10-30 Huawei Technologies Co., Ltd. Network element selection method and network element selector
CN107295601B (zh) * 2016-04-12 2020-07-10 中兴通讯股份有限公司 一种多运营商核心网中接入核心网的方法及装置
CN111565436B (zh) * 2020-04-15 2022-08-12 中国联合网络通信集团有限公司 一种通信方法和接入网设备
CN111565438B (zh) * 2020-04-15 2022-06-21 中国联合网络通信集团有限公司 一种通信方法和接入网设备
CN111565437B (zh) * 2020-04-15 2022-06-21 中国联合网络通信集团有限公司 一种通信方法和接入网设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101005633A (zh) * 2006-07-21 2007-07-25 华为技术有限公司 一种实现移动交换中心池的方法及系统
CN101345919A (zh) * 2008-08-12 2009-01-14 中兴通讯股份有限公司 服务节点选择方法及装置
CN101569223A (zh) * 2006-12-29 2009-10-28 诺基亚公司 用于多点无线网络配置的节点选择功能
CN101674628A (zh) * 2009-09-30 2010-03-17 中兴通讯股份有限公司 路由重选的方法和无线网络控制器
CN102014365A (zh) * 2010-11-04 2011-04-13 中兴通讯股份有限公司 一种无线网络共享中选择核心网运营商的方法和系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101005633A (zh) * 2006-07-21 2007-07-25 华为技术有限公司 一种实现移动交换中心池的方法及系统
CN101569223A (zh) * 2006-12-29 2009-10-28 诺基亚公司 用于多点无线网络配置的节点选择功能
CN101345919A (zh) * 2008-08-12 2009-01-14 中兴通讯股份有限公司 服务节点选择方法及装置
CN101674628A (zh) * 2009-09-30 2010-03-17 中兴通讯股份有限公司 路由重选的方法和无线网络控制器
CN102014365A (zh) * 2010-11-04 2011-04-13 中兴通讯股份有限公司 一种无线网络共享中选择核心网运营商的方法和系统

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