CN102726078B - Method for mobile terminal registration in Pool area and access network entity - Google Patents

Method for mobile terminal registration in Pool area and access network entity Download PDF

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Publication number
CN102726078B
CN102726078B CN201180002442.4A CN201180002442A CN102726078B CN 102726078 B CN102726078 B CN 102726078B CN 201180002442 A CN201180002442 A CN 201180002442A CN 102726078 B CN102726078 B CN 102726078B
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sgsn
mobile terminal
access network
network entity
highest
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CN102726078A (en
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叶晓炳
朱成刚
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration

Abstract

A method and system for mobile terminal registration in a Pool area and an access network entity. The method includes: an access network entity receiving a request message sent by a mobile terminal, with the request message carrying identity information about the mobile terminal and being used for requesting to perform mobile terminal registration; the access network entity selecting from a serving GPRS support node (SGSN) state list an SGSN in normal state and with the highest priority; the access network entity sending the request message to the SGSN with the highest priority, so as to complete the registration of the mobile terminal. Thus, the flexibility of SGSN selection can be improved.

Description

Mobile terminal register method and access network entity in Pool district
Technical field
The present invention relates to moving communicating field, relate in particular to mobile terminal register method and access network entity in a kind of Pool district.
Background technology
In mobile communications network, for being provided to user, online more stably experiences, conventionally multiple general packet wireless service support nodes (Serving GPRS Support Node of zones of different will be deployed in, SGSN) a composition pond (Pool) district, in this Pool district, not only do not need handed over service SGSN when mobile terminal roaming, and the service reliability of mobile terminal also promotes to some extent.
The schematic diagram in a kind of Pool district as shown in Figure 1, wherein, has formed a pool district at SGSN1, SGSN2 and the SGSN3 of city city1, city2 and city3 deployment respectively.Mobile terminal can be roamed in the situation that not needing handed over service SGSN in the pool district shown in Fig. 1.Further, as shown in Figure 1, radio network controller (Radio Network Controller, RNC) 1,2 and 3 is the RNC that are deployed in respectively city city1, city2 and city3.Wherein, RNC1, RNC2 are connected with SGSN1, SGSN2 and SGSN3 by renting bearer network respectively with RNC3.Usually, rent bearer network and all pay according to flow, therefore operator often wish mobile terminal under RNC1 scope can preferred local SGSN1 registration, mobile terminal under RNC2 scope can preferred local SGSN2 registration, mobile terminal under RNC3 scope can preferred local SGSN3 registration.And in practical application, when abnormal (for example, link failure between this SGSN fault or this SGSN and its corresponding RNC) occurs a certain SGSN in Pool district, RNC corresponding to this SGSN can be that mobile terminal under its scope selects corresponding SGSN to register according to the Capacity Ratio of all the other SGSN.Taking the Pool district shown in Fig. 1 as example, if SGSN1, the SGSN2 of the upper configuration of RNC2 and the capacity ratio of SGSN3 are 3: 3: 4, in the time that SGSN2 is abnormal, RNC2 can select corresponding SGSN to register for the mobile terminal under its scope according to the capacity ratio of SGSN1 and SGSN3 3: 4.For instance, RNC2 is in the time receiving the request of each mobile terminal transmission under its scope, can produce at random a random number n, and this random number n is done to mould 7 (7=3+4) computing, if operation result is in (0～2) scope, to select SGSN1 be that mobile terminal under its scope is registered to RNC2, if operation result is in (3～6) scope, to select SGSN3 be that mobile terminal under its scope is registered to RNC2, makes after a period of time all mobile terminals under RNC2 scope to complete and register and be attached on SGSN1 and SGSN3.
In practice, find, in above-mentioned Pool district, the flexibility of mobile terminal register method is poor, particularly in the time that a certain SGSN in Pool district is abnormal, the RNC that this SGSN is corresponding sends to corresponding SGSN according to the Capacity Ratio of all the other SGSN by the request of all mobile terminals under its scope and registers, and this mode cannot meet the demand of registering according to the preferred SGSN of network condition.
Summary of the invention
Mobile terminal register method and access network entity in a kind of Pool district that the embodiment of the present invention provides, can improve the flexibility that SGSN selects.
Mobile terminal register method in a kind of Pool district, comprising:
The request message that access network entity mobile terminal receive sends, described request message carries the identification information of described mobile terminal, and described request message is carried out mobile terminal registration in order to request;
It is normal that described access network entity selects state from general packet wireless service support node SGSN state table, and the highest SGSN of priority level;
Described request message is sent to the highest SGSN of described priority level by described access network entity, to complete the registration of described mobile terminal.
A kind of access network entity, is applied to Pool district, comprising:
First module, the request message sending for mobile terminal receive, described request message carries the identification information of described mobile terminal; Described request message is carried out mobile terminal registration in order to request;
Second unit, normal for selecting state from general packet wireless service support node SGSN state table, and the highest SGSN of priority level;
Unit the 3rd, for described request message being sent to the highest SGSN of described priority level, to complete the registration of described mobile terminal.
In the such scheme that the embodiment of the present invention provides, after access network entity receives the request message of mobile terminal transmission, can from SGSN state table, select state normal, and the SGSN that priority level is the highest, and this request message is sent to the SGSN that priority level is the highest, to complete the registration of described mobile terminal.Particularly, in the time that SGSN corresponding to access network entity is abnormal, can selects the SGSN of the SGSN immediate SGSN corresponding with access network entity or mobile terminal access minimum number for mobile terminal and register, thereby improve the flexibility that SGSN selects.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiment of the embodiment of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram in existing a kind of Pool district;
The flow chart of mobile terminal register method in a kind of Pool district that Fig. 2 provides for the embodiment of the present invention;
The flow chart of mobile terminal register method in several Pool district that Fig. 3, Fig. 4 provide for the embodiment of the present invention;
The structure chart of several access network entity that Fig. 5～Fig. 9 provides for the embodiment of the present invention;
The structure chart of mobile terminal Accreditation System in a kind of Pool district that Figure 10 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Mobile terminal register method and system, access network entity in a kind of Pool district that the embodiment of the present invention provides, can improve the flexibility that SGSN selects.Describe below by specific embodiment.
Embodiment mono-:
Refer to Fig. 2, mobile terminal register method in a kind of Pool district that Fig. 2 provides for the embodiment of the present invention.Wherein, the method that Fig. 2 describes can be applied to code division multiple access access 2000 (Code Division Multiple Access 2000, CDMA2000), Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, WCDMA), TD SDMA (Time Division-Synchronous Code Division Multiple Access, 3-G (Generation Three mobile communication system) (the 3rd-generation such as TD-SCDMA), 3G) in system, also can be applied to global system for mobile communications (Global System For Mobile Communications, etc. GSM) in second generation mobile communication system.Further, if the method that Fig. 2 describes is applied to 3G system, can carry out the method that execution graph 2 is described by the radio network controller in Pool district (RNC), realize the registration of mobile terminal in Pool; If the method that Fig. 2 describes is applied to second generation mobile communication system, can be by (the Base Station Controller of the base station controller in Pool district, BSC) carry out the method that execution graph 2 is described, can realize equally the registration of mobile terminal in Pool.For convenience of description, in the method for describing, RNC and BSC are referred to as to access network entity at Fig. 2, the access network entity of embodiment of the present invention subsequent descriptions can be both RNC, can be also BSC.As shown in Figure 2, the method can comprise the following steps:
201, the request message that access network entity mobile terminal receive sends, this request message carries the identification information of mobile terminal, and this request message is in order to ask mobile terminal to be registered.
Wherein, above-mentioned request message can be Attach Request message Attach Request, can be also router update request message, and the embodiment of the present invention is not construed as limiting.
Wherein, mobile terminal can be the mobile terminal roaming in access network entity coverage, can be the local mobile terminal in access network entity coverage, and the embodiment of the present invention is not construed as limiting.
Wherein, mobile terminal can be distributed in the subscriber equipment (User Equipment, UE) in whole wireless network, and each UE can be static state or mobile.UE can be called again terminal (terminal), travelling carriage (mobile station), subscriber unit (subscriber unit), platform (station) etc.UE can be cell phone (cellular phone), personal digital assistant (Personal Digital Assistant, PDA), radio modem (modem), Wireless Telecom Equipment, handheld device (handheld), kneetop computer (laptop computer), cordless telephone (cordless phone), wireless local loop (Wireless Local Loop, WLL) platform etc.UE can with macro base station, skin (pico) base station, femtocell (femto) base station etc. communicates.
Wherein, the identification information of mobile terminal can be international mobile subscriber identity (the International Mobile Subscriber Identification Number of mobile terminal, IMSI), can be also the temporary mobile subscriber identity (P-TMSI) of mobile terminal.Wherein, can carry network resource identifier (Network Resource Identifier, NRI) in the P-TMSI of mobile terminal, this NRI is that a certain SGSN that mobile terminal last time accessed distributes, for identifying this SGSN.
In actual applications, in the time that mobile terminal sends Attach Request message Attach Request or router update request message to access network entity for the first time, in this Attach Request message Attach Request or router update request message, can carry the IMSI for representing mobile terminal identity.And after mobile terminal is successfully registered to a certain SGSN in Pool district for the first time, the P-TMSI that distribution is contained local exchange NRI by this SGSN is to mobile terminal, while making that mobile terminal is follow-up sends Attach Request message Attach Request or router update request message to access network entity again, this Attach Request message Attach Request or router update request message can be carried the P-TMSI for representing mobile terminal identity.Like this, access network entity receives Attach Request message Attach Request that mobile terminal sends or when router update request message, can from the P-TMSI that Attach Request message Attach Request or router update request message are carried, parse NRI, and Attach Request message or router update request message that mobile terminal is sent send to the SGSN that NRI is corresponding.Thereby can ensure that each initiation of mobile terminal in Pool all can be routed to the registered SGSN of mobile terminal above while adhering to request or router update request, when mobile terminal is roamed in Pool district, without change service SGSN.Compared with traditional networking, by NRI, can make Pool networking reduce the signaling load of Iu/Gb interface.
Usually, NRI is positioned at the 23bit～14bit of P-TMSI.The length of NRI can be adjusted (0～10bit), and NRI length is not 0 o'clock, and NRI must start with 23bit.In the access network entity (being RNC or BSC) that in Pool district, each SGSN and each SGSN are corresponding, the NRI length of configuration must be identical.
Wherein, when the access network entity (being RNC or BSC) that SGSN is corresponding refers to SGSN as local SGSN, meet RNC or the BSC of local SGSN.
202, from SGSN state table, to select state normal for access network entity, and the highest SGSN of priority level.
Wherein, the SGSN that priority level is the highest can be SGSN corresponding to access network entity, also can be that SGSN corresponding to access network entity is when abnormal, the SGSN nearest SGSN corresponding apart from access network entity, or can be also the SGSN of mobile terminal access minimum number, also can be the SGSN that meets other conditions, the embodiment of the present invention be not construed as limiting.
Wherein, SGSN corresponding to access network entity refer to the local SGSN of access network entity access.
In the embodiment of the present invention, can utilize SGSN state table to come the normal SGSN of recording status and priority level thereof.For instance, in the time that SGSN corresponding to access network entity is abnormal, the SGSN that priority level is the highest can be SGSN (be the local SGSN of access network entity access) the immediate SGSN corresponding with access network entity, can be also the SGSN of mobile terminal access minimum number.Obviously,, in the time that SGSN corresponding to access network entity is abnormal, the quantity of the immediate SGSN of SGSN corresponding with access network entity can be one or at least two; Equally, the quantity of the SGSN of mobile terminal access minimum number can be also one or at least two.That is to say, in the time that SGSN corresponding to access network entity is abnormal, the state selecting from default SGSN state table is normal, and the quantity of the highest SGSN of priority level can be one or at least two.Certainly, in the time that SGSN state corresponding to access network entity is normal, the highest SGSN of priority level selecting from SGSN state table can be SGSN corresponding to access network entity, and mobile terminal can be registered by SGSN corresponding to preferred access network entity.Obviously,, if the highest SGSN of priority level selecting from SGSN state table is SGSN corresponding to access network entity, the quantity of the SGSN that the priority level that selects from SGSN state table is the highest is just one.
Alternatively, in above-mentioned SGSN state table, for the normal SGSN of each state, can also record its corresponding capacity, mobile terminal access number of times and the interior mobile terminal access failure number of times of certain hour and reason etc., the embodiment of the present invention is not construed as limiting.
Wherein, SGSN can be that SGSN self breaks down extremely, also can be that link between SGSN and its corresponding access network entity breaks down, also can be SGSN and attaching position register (Home Location Register, HLR) Gr interface between is unavailable, also can be that SGSN and gateway are unavailable by the Gr interface between packet wireless service support node (Gateway GPRS Support Node, GGSN).Further, SGSN occur abnormal after, this SGSN can initiatively broadcast and be used to indicate it abnormal message occurs, the embodiment of the present invention is not construed as limiting.
203, request message is sent to the SGSN that priority level is the highest by access network entity, to complete the registration of mobile terminal.
As above-mentioned said, the quantity of the SGSN that priority level that access network entity selects from SGSN state table is the highest can be at least two, in the time that the identification information of the mobile terminal carrying in the request message that mobile terminal sends is IMSI, step 203 is specifically as follows so:
Access network entity, according to the Capacity Ratio of the highest SGSN of pre-configured above-mentioned at least two priority levels, is sent to the corresponding SGSN in the SGSN that above-mentioned at least two priority levels are the highest by request message, to complete the registration of mobile terminal;
Or request message is sent to the mobile terminal access minimum number person in the SGSN that above-mentioned at least two priority levels are the highest by access network entity, to complete the registration of mobile terminal.
For instance, suppose that access network entity selects priority level from SGSN state table the highest, and consistent SGSN1 and the SGSN3 of priority level, wherein, the capacity ratio of SGSN1 and SGSN3 is 5: 2, and access network entity can produce a random number n at random so, and this random number n is done to mould 7 (7=5+2) computing, if operation result is in (0～4) scope, access network entity can be sent to SGSN1 by request message and registers; If operation result is in (5～6) scope, access network entity can be sent to SGSN3 by request message and registers.
Again for instance, suppose that access network entity selects priority level from SGSN state table the highest, and consistent SGSN1 and the SGSN3 of priority level, wherein, the mobile terminal access number of times in SGSNI is less than the access number of times of the mobile terminal in SGSN3; Access network entity can be sent to request message the SGSN1 of mobile terminal access minimum number.
Certainly,, if the highest SGSN of priority level that access network entity selects from SGSN state table is SGSN corresponding to access network entity, access network entity can be sent to request message its corresponding SGSN and registers.
As above-mentioned said, the quantity of the SGSN that priority level that access network entity selects from SGSN state table is the highest can be at least two, in the time that the identification information of the mobile terminal carrying in the request message that mobile terminal sends is P-TMSI, step 203 is specifically as follows so:
Access network entity parses NRI from P-TMSI, and judge the SGSN that whether has NRI mark from default SGSN state table in the SGSN that at least two priority levels selecting are the highest, if existed, access network entity can be sent to request message the SGSN of NRI mark, to complete the registration of mobile terminal; If there is no, access network entity can be according to the Capacity Ratio of the highest SGSN of at least two pre-configured priority levels, request message is sent to the corresponding SGSN in the SGSN that at least two priority levels are the highest, to complete the registration of mobile terminal; Or access network entity can be sent to request message the mobile terminal access minimum number person in the SGSN that at least two priority levels are the highest, to complete the registration of mobile terminal.
As the optional execution mode of one, the described method of Fig. 2 can also comprise the following steps:
The registration that the highest SGSN of access network entity reception priority level returns completes response message and registration is completed to response message and sends to mobile terminal, completes the registration of mobile terminal.
Wherein, it can be to adhere to accept message Attach Accept that above-mentioned registration completes response message, can be also that router has upgraded response message, and the embodiment of the present invention is not construed as limiting.
Wherein, above-mentioned registration complete response message be the identification information of carrying in the request message (as Attach Request) that sends at checking mobile terminal of SGSN that priority level is the highest correct after (identity of verifying mobile terminal is correct) just send, the object that this registration completes response message (accepting message Attach Accept as adhered to) is that confirmation mobile terminal adheres to successfully.
As the optional execution mode of one, in the said method that the embodiment of the present invention provides, access network entity, after the step 201 that is finished, can also first be carried out following steps:
Whether access network entity detects preferred SGSN function and opens, if preferably SGSN function is opened, access network entity performs step 202～203 again; If preferably SGSN function is not opened, access network entity can be according to the Capacity Ratio of pre-configured SGSN, request message is sent out to (as Attach Request) and is delivered to corresponding SGSN, to complete the registration of mobile terminal.Correspondingly, mobile terminal can also receive the registration that corresponding SGSN returns and complete response message (accepting message Attach Accept as adhered to), and registration is completed to response message (accepting message Attach Accept as adhered to) send to mobile terminal, thereby complete the registration of mobile terminal.Wherein, corresponding SGSN can be SGSN corresponding to access network entity, can be also other SGSN, and the embodiment of the present invention is not construed as limiting.
In the said method that the embodiment of the present invention provides, access network entity can also be surveyed the state of each SGSN in Pool district, if it is normal to detect a certain SGSN, illustrate that this SGSN can participate in the selection of access network entity to SGSN, can by this SGSN with and priority level write SGSN state table, thereby form SGSN state table.Otherwise if it is abnormal to detect a certain SGSN, this SGSN does not participate in the selection of access network entity to SGSN, without by this SGSN write state table.
As the optional execution mode of one, access network entity is surveyed the state of each SGSN in Pool district, and form the mode of SGSN state table can be as follows:
Access network entity sends and surveys signaling to each SGSN in Pool district, and detect in Preset Time, whether to receive the detection signaling response that the SGSN in Pool district returns for this detection signaling, if, determine and return to that to survey the SGSN of signaling response normal, and by return the SGSN that surveys signaling response with and priority level write SGSN state table; If not, determine and do not return to that to survey the SGSN of signaling response abnormal, without by this SGSN write state table.
Wherein, access network entity can be minute a Preset Time to be set as unit, and access network entity is surveyed after signaling, if receive the detection signaling response that a certain SGSN returns in this Preset Time sending, illustrate that this SGSN is normal, can participate in the selection of access network entity to SGSN; Otherwise, illustrating that this SGSN is abnormal, this SGSN is without participating in the selection of access network entity to SGSN.
Or, access network entity can be minute to arrange a time period T as unit, access network entity sends and once surveys signaling to some SGSN every time period T, all do not receive if send continuously N detection signaling the detection signaling response that this SGSN returns, or M time (M < N) surveying in signaling for N time do not receive the detection signaling response that this SGSN returns, and thinks that this SGSN is abnormal; Otherwise, thinking that this SGSN is normal, this SGSN can participate in the selection of access network entity to SGSN.
In practical application, access network entity can be periodically sends and surveys signaling to each SGSN in Pool district, also can be sent and survey signaling to each SGSN in Pool district by Event triggered, and the embodiment of the present invention is not construed as limiting.
As the optional execution mode of another kind, access network entity is surveyed the state of each SGSN in Pool district, and form the mode of SGSN state table can be as follows:
Access network entity receives the broadcast that the arbitrary SGSN in Pool district sends, and it is abnormal that this broadcast is used to indicate this SGSN; Access network entity determines that in Pool district, all the other SGSN except this SGSN are normal, and by all the other SGSN with and priority level write SGSN state table.Wherein, this SGSN comprises this SGSN faults itself extremely, and/or Gr interface between this SGSN and HLR is unavailable, and/or gn interface between this SGSN and GGSN is unavailable etc.
After access network entity receives the request message of mobile terminal transmission, access network entity can select the SGSN that priority level is the highest from SGSN state table, and this request message is sent to the SGSN that priority level is the highest, to complete the registration of mobile terminal.As can be seen here, the embodiment of the present invention one can improve the flexibility that SGSN selects, particularly in the time that SGSN corresponding to access network entity is abnormal, can select the SGSN of the SGSN immediate SGSN corresponding with access network entity or mobile terminal access minimum number for mobile terminal and register, improve the flexibility that SGSN selects.
Embodiment bis-:
Refer to Fig. 3, the flow chart of mobile terminal register method in several Pool district that Fig. 3 provides for the embodiment of the present invention two.In the method for describing at Fig. 3, suppose that Pool district is made up of SGSN1 and SGSN2, and taking RNC as access network entity as example is introduced mobile terminal register method in the Pool district that the embodiment of the present invention provides.When the specific implementation process of mobile terminal register method in the Pool district of BSC during as access network entity is similar with Fig. 3, therefore, the embodiment of the present invention two is not repeated.In the method for describing at Fig. 3, RNC can get rid of in Pool district and occur opening abnormal SGSN preferred SGSN function and recorded SGSN Capacity Ratio and/or the mobile terminal access number of times (SGSN Capacity Ratio and/or mobile terminal access number of times can be regarded as again SGSN weight) that priority level is consistent.In addition, the SGSN in Pool district, judging the unavailable and/or gn interface of Gr interface when unavailable, also can notify this SGSN of RNC abnormal.
As shown in Figure 3, in a kind of Pool district, the implementation procedure of mobile terminal register method is as follows:
11, the Attach Request message Attach Request that carries IMSI that mobile terminal UE sends is to RNC.
12, from SGSN state table, to select state normal for RNC, and the highest SGSN2 of priority level; Wherein, the SGSN2 that priority level is the highest is the SGSN that RNC is corresponding (being the local SGSN of RNC access).
13, the Attach Request message Attach Request that carries IMSI is sent to SGSN2 by RNC.
14, message Attach Accept is accepted in adhering to that RNC reception SGSN2 returns.
Wherein, what SGSN2 returned adhere to accepts to carry SGSN2 in message Attach Accept is the P-TMSI that mobile terminal UE is distributed, and includes the NRI of SGSN2 in this P-TMSI.
What 15, RNC returned to SGSN2 adhere to accepts message Attach Accept and sends to mobile terminal UE, completes the registration of mobile terminal UE.
As shown in Figure 3, in another kind of Pool district, the implementation procedure of mobile terminal register method is as follows:
21, the Attach Request message Attach Request that carries P-TMSI that mobile terminal UE sends is to RNC.
Wherein, the P-TMSI carrying in Attach Request message Attach Request is that SGSN2 is that mobile terminal UE is distributed, and includes the NRI of SGSN2 in this P-TMSI.
22, RNC selects the SGSN2 that priority level is the highest from SGSN state table; Wherein, the SGSN2 that priority level is the highest is the SGSN that RNC is corresponding.
Wherein, the highest SGSN of priority level selecting from SGSN state table due to RNC has and only has mono-of SGSN2, and the NRI of the SGSN2 that the P-TMSI that therefore UE sends comprises is inoperative.
23, the Attach Request message Attach Request that carries P-TMSI is sent to SGSN2 by RNC.
24, message Attach Accept is accepted in adhering to that RNC reception SGSN2 returns.
What 25, RNC returned to SGSN2 adhere to accepts message Attach Accept and sends to mobile terminal UE, completes the registration of mobile terminal UE.
As shown in Figure 3, in another kind of Pool district, the implementation procedure of mobile terminal register method is as follows:
31, the Attach Request message Attach Request that carries P-TMSI that mobile terminal UE sends is to RNC.
Wherein, the P-TMSI carrying in Attach Request message Attach Request is that SGSN2 is that mobile terminal UE is distributed, and includes the NRI of SGSN2 in this P-TMSI.
32, RNC selects the SGSN1 that priority level is the highest from SGSN state table; Wherein, the SGSN2 that RNC is corresponding is abnormal.
Wherein, the highest SGSN of priority level selecting from SGSN state table due to RNC has and only has mono-of SGSN1, and the NRI of the SGSN2 that the P-TMSI that therefore UE sends comprises is inoperative.
33, the Attach Request message Attach Request that carries P-TMSI is sent to SGSN1 by RNC.
34, message Attach Accept is accepted in adhering to that RNC reception SGSN1 returns.
Wherein, what SGSN1 returned adhere to accepts to carry SGSN1 in message Attach Accept is the P-TMSI that mobile terminal UE is distributed, and includes the NRI of SGSN1 in this P-TMSI.
What 35, RNC returned to SGSN1 adhere to accepts message Attach Accept and sends to mobile terminal UE, completes the registration of mobile terminal UE.
The embodiment of the present invention two can improve the flexibility that SGSN selects, particularly in the time that SGSN corresponding to RNC is abnormal, can select the SGSN of the SGSN immediate SGSN corresponding with RNC or mobile terminal access minimum number for mobile terminal and register, improve the flexibility that SGSN selects.
Embodiment tri-:
Refer to Fig. 4, the flow chart of mobile terminal register method in several Pool district that Fig. 4 provides for the embodiment of the present invention three.In the method for describing at Fig. 4, suppose that Pool district is made up of SGSN1 and SGSN2, and taking RNC as access network entity as example is introduced mobile terminal register method in the Pool district that the embodiment of the present invention provides.When the specific implementation process of mobile terminal register method in the Pool district of BSC during as access network entity is similar with Fig. 4, therefore, the embodiment of the present invention three is not repeated.In the method for describing at Fig. 3, RNC can get rid of and in Pool district, occur abnormal SGSN, and opens preferred SGSN function and recorded SGSN Capacity Ratio and/or the mobile terminal access number of times (SGSN Capacity Ratio and/or mobile terminal access number of times can be regarded as SGSN weight) that priority level is consistent.In addition, the SGSN in Pool district, judging the unavailable and/or gn interface of Gr interface when unavailable, also can notify this SGSN of RNC abnormal.
As shown in Figure 4, in a kind of Pool district, the implementation procedure of mobile terminal register method is as follows:
41, the Attach Request message Attach Request that carries P-TMSI that mobile terminal UE sends is to RNC.
Wherein, the P-TMSI carrying in Attach Request message Attach Request is that SGSN2 is that mobile terminal UE is distributed, and includes the NRI of SGSN2 in this P-TMSI.
42, RNC selects the SGSN1 that priority level is the highest from SGSN state table; Wherein, the SGSN2 that RNC is corresponding is abnormal.
43, the Attach Request message Attach Request that carries P-TMSI is sent to SGSN1 by RNC.
Wherein, the highest SGSN of priority level selecting from SGSN state table due to RNC has and only has mono-of SGSN1, and the NRI of the SGSN2 that the P-TMSI that therefore UE sends comprises is inoperative.
44, message Attach Accept is accepted in adhering to that RNC reception SGSN1 returns.
Wherein, what SGSN1 returned adhere to accepts to carry SGSN1 in message Attach Accept is the P-TMSI that mobile terminal UE is distributed, and includes the NRI of SGSN1 in this P-TMSI.
What 45, RNC returned to SGSN1 adhere to accepts message Attach Accept and sends to mobile terminal UE, completes the registration of mobile terminal UE.
As shown in Figure 4, in another kind of Pool district, the implementation procedure of mobile terminal register method is as follows:
51, the Attach Request message Attach Request that carries P-TMSI that mobile terminal UE sends is to RNC.
Wherein, the P-TMSI carrying in Attach Request message Attach Request is that SGSN1 is that mobile terminal UE is distributed, and includes the NRI of SGSN1 in this P-TMSI.
52, RNC selects the SGSN2 that priority level is the highest from SGSN state table;
Wherein, RNC detects by describing method above the SGSN2 that RNC is corresponding and recovers normal, and SGSN2 and priority level thereof are write SGSN state table by RNC, and the priority level of SGSN2 is the highest.
53, the Attach Request message Attach Request that carries P-TMSI is sent to SGSN2 by RNC.
Wherein, the highest SGSN of priority level selecting from SGSN state table due to RNC has and only has mono-of SGSN2, and the NRI of the SGSN1 that the P-TMSI that therefore UE sends comprises is inoperative.
54, message Attach Accept is accepted in adhering to that RNC reception SGSN2 returns.
Wherein, what SGSN2 returned adhere to accepts to carry SGSN2 in message Attach Accept is the P-TMSI that mobile terminal UE is distributed, and includes the NRI of SGSN2 in this P-TMSI.
What 55, RNC returned to SGSN2 adhere to accepts message Attach Accept and sends to mobile terminal UE, completes the registration of mobile terminal UE.
The embodiment of the present invention three can improve the flexibility that SGSN selects, particularly in the time that SGSN corresponding to RNC is abnormal, can select the SGSN of the SGSN immediate SGSN corresponding with RNC or mobile terminal access minimum number for mobile terminal and register, improve the flexibility that SGSN selects.
Embodiment tetra-:
Refer to Fig. 5, the structure chart of a kind of access network entity that Fig. 5 provides for the embodiment of the present invention four, is applied to Pool district.Wherein, the access network entity that the embodiment of the present invention four provides can be RNC, can be also BSC, and the embodiment of the present invention is not construed as limiting.As shown in Figure 5, this access network entity can comprise:
First module 501, the request message sending for mobile terminal receive, this request message carries the identification information of mobile terminal, and this request message carries out mobile terminal registration in order to request.
Wherein, above-mentioned request message comprises Attach Request message and/or router update request message.
Second unit 502, normal for selecting state from SGSN state table, and the highest SGSN of priority level.
Wherein, the SGSN that priority level is the highest can be SGSN corresponding to access network entity, also can be that SGSN corresponding to access network entity is when abnormal, the SGSN nearest SGSN corresponding apart from access network entity, or can be also the SGSN of mobile terminal access minimum number, also can be other SGSN, the embodiment of the present invention be not construed as limiting.
Wherein, above-mentioned distance can be physical distance, can be also route distance, and the embodiment of the present invention is not construed as limiting.
The 3rd unit 503, for above-mentioned request message is sent to the SGSN that priority level is the highest, to complete the registration of described mobile terminal.
As the optional execution mode of one, first module 501 can also be used for receiving the registration that SGSN that priority level is the highest returns and complete response message;
Correspondingly, the access network entity shown in Fig. 5 can also comprise the 4th unit 504, sends to mobile terminal for above-mentioned registration is completed to response message, completes the registration of mobile terminal.
In the embodiment of the present invention, in second unit 502, can store a SGSN state table, for coming the normal SGSN of recording status and priority level thereof.For instance, in the time that SGSN corresponding to access network entity is abnormal, the SGSN that priority level is the highest can be the SGSN immediate SGSN corresponding with access network entity, can be also the SGSN of mobile terminal access minimum number.Obviously,, in the time that SGSN corresponding to access network entity is abnormal, the quantity of the immediate SGSN of SGSN corresponding with access network entity can be one or at least two; Equally, the quantity of the SGSN of mobile terminal access minimum number can be also one or at least two.That is to say, in the time that SGSN corresponding to access network entity is abnormal, the quantity of the SGSN that priority level that second unit 502 selects from SGSN state table is the highest can be one or at least two.Certainly, in the time that SGSN corresponding to access network entity is normal, the highest SGSN of priority level that second unit 502 selects from SGSN state table can be SGSN corresponding to access network entity, and mobile terminal can be registered by SGSN corresponding to preferred access network entity.Obviously,, if the highest SGSN of priority level that second unit 502 selects from SGSN state table is SGSN corresponding to access network entity, the quantity of the SGSN that priority level that second unit 502 selects from SGSN state table is the highest is just one.
Alternatively, in the SGSN state table that above-mentioned second unit 502 is stored, for the normal SGSN of each state, can also record its corresponding capacity, mobile terminal access number of times and the interior mobile terminal access failure number of times of certain hour and reason etc., the embodiment of the present invention is not construed as limiting.
As the optional execution mode of one, the identification information of mobile terminal can be the IMSI of mobile terminal.
As above-mentioned said, the highest SGSN quantity of priority level that second unit 502 selects from SGSN state table can be at least two, so in the time of IMSI that the identification information of mobile terminal is mobile terminal, the 3rd unit 503 is specifically for according to the Capacity Ratio of the highest SGSN of pre-configured above-mentioned at least two priority levels, request message is sent to the corresponding SGSN in the SGSN that above-mentioned at least two priority levels are the highest, to complete the registration of mobile terminal; Or for request message being sent to the mobile terminal access minimum number person of the SGSN that above-mentioned at least two priority levels are the highest, to complete the registration of mobile terminal.
As the optional execution mode of one, the identification information of mobile terminal can be the P-TMSI of mobile terminal.
As above-mentioned said, the highest SGSN quantity of priority level that second unit 502 selects from SGSN state table can be at least two, in the time of P-TMSI that the identification information of mobile terminal is mobile terminal, the structure chart of the 3rd unit 503 can as shown in Figure 6, comprise so:
The first module 5031, parses NRI for the P-TMSI carrying from above-mentioned request message;
The second module 5032, for judging the SGSN that whether has NRI mark the SGSN that the priority level that selects from SGSN state table is the highest;
The 3rd module 5033, in the judged result of the second module 5032 when being, request message is sent to the SGSN of NRI mark, to complete the registration of mobile terminal.
As the optional execution mode of one, the 3rd unit 503 can also comprise four module 5034:
Four module 5034, for in the judged result of the second module 5032 while being no, according to the Capacity Ratio of the highest SGSN of pre-configured above-mentioned at least two priority levels, request message is sent to the corresponding SGSN in the SGSN that above-mentioned at least two priority levels are the highest, to complete the registration of mobile terminal; Or for request message being sent to the mobile terminal access minimum number person of the SGSN that above-mentioned at least two priority levels are the highest, to complete the registration of mobile terminal.
For instance, suppose that second unit 502 selects state from SGSN state table normal, and the SGSN that priority level is the highest comprises SGSNI and SGSN3, wherein SGSNI is consistent with SGSN3 priority level, and the Capacity Ratio of SGSNI and SGSN3 is 2: 3, when the second module 5032 judges the SGSN that does not have the NRI mark that the first module parses goes out in SGSNI and SGSN3 so, four module 5034 can produce a random number n at random, and this random number n is done to mould 5 (5=2+3) computing, if operation result is in (0～1) scope, four module 5034 can be sent to SGSN1 by request message and registers, if operation result is in (2～4) scope, four module 5034 can be sent to SGSN3 by request message and registers.
See also Fig. 7, Fig. 7 is the structure chart of a kind of access network entity of obtaining after the access network entity shown in Fig. 6 is further optimized.Compared with the access network entity shown in Fig. 6, the access network entity shown in Fig. 7 also comprises:
The 5th unit 505, after receiving the request message of mobile terminal transmission in first module 501, detect SGSN function and whether open, if, notify second unit 502 to select state from default SGSN state table normal, and the highest SGSN of priority level; If not,, according to pre-configured SGSN Capacity Ratio, request message is sent to corresponding SGSN, to complete the registration of mobile terminal;
Correspondingly, first module 501 also completes response message for receiving the registration that corresponding SGSN returns;
The 5th unit 505 also completes response message for the registration that corresponding SGSN is returned and sends to mobile terminal, completes the registration of mobile terminal.
See also Fig. 8, Fig. 8 is the structure chart of the another kind of access network entity that obtains after the access network entity shown in Fig. 7 is further optimized.Compared with the access network entity shown in Fig. 7, the access network entity shown in Fig. 8 also comprises:
The 6th unit 506, send and survey signaling for each SGSN in Pool district, and whether detection receives the detection signaling response that the SGSN in Pool district returns for detection signaling in Preset Time, if, determine and return to that to survey the SGSN of signaling response normal, and by return the SGSN that surveys signaling response with and priority level write SGSN state table; If not, determine and do not return to that to survey the SGSN of signaling response abnormal.
See also Fig. 9, Fig. 9 is the structure chart of the another kind of access network entity that obtains after the access network entity shown in Fig. 7 is further optimized.Compared with the access network entity shown in Fig. 7, the access network entity shown in Fig. 9 also comprises:
The 7th unit 507, the broadcast sending for the arbitrary SGSN receiving in Pool district, it is abnormal that this broadcast is used to indicate this SGSN; Wherein, this SGSN can comprise that the Gr interface of this SGSN is unavailable extremely, gn interface is unavailable etc.; And all the other SGSN except this SGSN are normal in definite Pool district, and by all the other SGSN with and priority level write SGSN state table.
In the access network entity that the embodiment of the present invention provides, after receiving the request message of mobile terminal transmission, can from SGSN state table, select the SGSN that priority level is the highest, and this request message is sent to the SGSN that priority level is the highest, to complete the registration of mobile terminal.As can be seen here, the embodiment of the present invention can improve the flexibility that SGSN selects, particularly in the time that SGSN corresponding to access network entity is abnormal, can select the SGSN of the SGSN immediate SGSN corresponding with access network entity or mobile terminal access minimum number for mobile terminal and register, improve the flexibility that SGSN selects.
Embodiment five:
Refer to Figure 10, mobile terminal Accreditation System in a kind of Pool district that Figure 10 provides for the embodiment of the present invention.As shown in figure 10, this system can comprise:
At least one mobile terminal 1001 and access network entity 1002;
Wherein, mobile terminal 1001 is for sending a request message to access network entity 1002, and this request message carries the identification information of mobile terminal 1001, and described request message is carried out mobile terminal registration in order to request.
Wherein, described request message comprises Attach Request message and/or router update request message.
Wherein, mobile terminal 1001 can also receive the registration that access network entity 1002 sends and complete response message, completes the registration of mobile terminal 1001.
Wherein, access network entity 1002 can be RNC, can be also BSC.
Wherein, the structure of access network entity 1002, function are identical with structure, the function of any one access network entity in Fig. 5～Fig. 9, and the embodiment of the present invention is not repeated.
Wherein, the dotted line between mobile terminal 1001 and access network entity 1002 represents wireless connections.
The system that the embodiment of the present invention provides can improve the flexibility that SGSN selects, particularly in the time that SGSN corresponding to access network entity is abnormal, can select the SGSN of the SGSN immediate SGSN corresponding with access network entity or mobile terminal access minimum number for mobile terminal and register, improve the flexibility that SGSN selects.
In the embodiment of the present invention, after local SGSN is abnormal, RNC can register for the preferred Pool of mobile terminal district approaches SGSN's or mobile terminal access least number of times the SGSN that RNC is corresponding most, and without the polling of carrying out all the other multiple SGSN.
In the embodiment of the present invention, after SGSN corresponding to RNC recovers normally, RNC can automatically migrate to mobile terminal the SGSN that RNC is corresponding and register, and register without mobile terminal being migrated to the SGSN that RNC is corresponding with manual mode, and can accomplish moving back of whole mobile terminals, can solve the defect that in existing Pool district, RNC cannot successfully move the user who does not adhere in migration flow process, thereby cannot successfully move the user who does not adhere in migration flow process, realizing 100% user moves back
In the embodiment of the present invention, due to some cells that pass to GGSN can be set on SGSN, so indirectly realized flexible communication to GGSN such as charging property strategy (CC), time zone, SGSN place (TZ), and the parameter value of different service quality (QoS), ensured the reliability that business is larger simultaneously.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can complete by the relevant hardware of program command, aforesaid program can be stored in a computer read/write memory medium, this program, in the time carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disc or CDs.
In a kind of Pool the district above embodiment of the present invention being provided, mobile terminal register method and system, access network entity are described in detail, applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.

Claims (17)

1. a mobile terminal register method in Pool district, is characterized in that, comprising:
The request message that access network entity mobile terminal receive sends, described request message carries the identification information of described mobile terminal, and described request message is carried out mobile terminal registration in order to request; Described identification information comprises international mobile subscriber identity IMSI or temporary mobile subscriber identity P-TMSI;
It is normal that described access network entity selects state from general packet wireless service support node SGSN state table, and the highest SGSN of priority level; The SGSN quantity that described priority level is the highest is at least two;
If described identification information comprises international mobile subscriber identity IMSI, described access network entity is according to the Capacity Ratio of the highest SGSN of pre-configured described at least two priority levels, corresponding SGSN in the SGSN that described in described request message is sent to, at least two priority levels are the highest, to complete the registration of described mobile terminal; Or the mobile terminal access minimum number person in the SGSN that described in described access network entity is sent to described request message, at least two priority levels are the highest, to complete the registration of described mobile terminal; Or,
If described identification information comprises temporary mobile subscriber identity P-TMSI, described access network entity parses network resource identifier NRI from described P-TMSI; In the SGSN that described in the judgement of described access network entity, at least two priority levels are the highest, whether there is the SGSN of described NRI mark, if existed, described request message is sent to described NRI mark SGSN, to complete the registration of described mobile terminal.
2. mobile terminal register method according to claim 1, is characterized in that, also comprises:
Described access network entity receives the registration that the highest SGSN of described priority level returns and completes response message;
Described access network entity completes response message by described registration and sends to described mobile terminal, completes the registration of described mobile terminal.
3. mobile terminal register method according to claim 1, it is characterized in that, the highest SGSN of described priority level is SGSN corresponding to described access network entity, or the distance SGSN immediate SGSN corresponding with described access network entity, or the SGSN of mobile terminal access minimum number.
4. mobile terminal register method according to claim 1, is characterized in that, also comprises:
If there is not the SGSN of described NRI mark in the highest SGSN of described at least two priority levels, described access network entity is according to the Capacity Ratio of the highest SGSN of pre-configured described at least two priority levels, corresponding SGSN in the SGSN that described in described request message is sent to, at least two priority levels are the highest, to complete the registration of described mobile terminal;
Or the mobile terminal access minimum number person in the SGSN that described in described access network entity is sent to described request message, at least two priority levels are the highest, to complete the registration of described mobile terminal.
5. according to the mobile terminal register method described in claim 1～4 any one, it is characterized in that, after the request message that described access network entity mobile terminal receive sends, also comprise:
Whether described access network entity detects preferred SGSN function and opens, and if so, described access network entity carries out that from described SGSN state table, to select state normal, and the step of the highest SGSN of priority level.
6. mobile terminal register method according to claim 5, is characterized in that, also comprises:
Do not open if detect described preferred SGSN function, described access network entity, according to the Capacity Ratio of pre-configured SGSN, is sent to corresponding SGSN by described request message, to complete the registration of described mobile terminal.
7. according to the mobile terminal register method described in claim 1～4 any one, it is characterized in that, also comprise:
Described access network entity sends and surveys signaling to each SGSN in described Pool district;
Described access network entity detects in Preset Time, whether to receive the detection signaling response that the SGSN in described Pool district returns for described detection signaling, if, determine and return to that to survey the SGSN of signaling response normal, and by return the SGSN that surveys signaling response with and priority level write described SGSN state table.
8. according to the mobile terminal register method described in claim 1～4 any one, it is characterized in that, also comprise:
Described access network entity receives the broadcast that the arbitrary SGSN in described Pool district sends, and it is abnormal that described broadcast is used to indicate described arbitrary SGSN;
Described access network entity determines that in described Pool district, all the other SGSN except described arbitrary SGSN are normal, and by described all the other SGSN with and priority level write described SGSN state table.
9. an access network entity, is applied to Pool district, it is characterized in that, comprising:
First module, the request message sending for mobile terminal receive, described request message carries the identification information of described mobile terminal; Described request message is carried out mobile terminal registration in order to request; Described identification information comprises international mobile subscriber identity IMSI or temporary mobile subscriber identity P-TMSI;
Second unit, normal for selecting state from general packet wireless service support node SGSN state table, and the highest SGSN of priority level; The SGSN quantity that described priority level is the highest is at least two;
Described access network entity also comprises: Unit the 3rd;
If described identification information comprises international mobile subscriber identity IMSI, described Unit the 3rd, be used for according to the Capacity Ratio of the highest SGSN of pre-configured described at least two priority levels, corresponding SGSN in the SGSN that described in described request message is sent to, at least two priority levels are the highest, to complete the registration of described mobile terminal; Or the mobile terminal access minimum number person in the SGSN that described in described request message is sent to, at least two priority levels are the highest, to complete the registration of described mobile terminal;
Or if described identification information comprises temporary mobile subscriber identity P-TMSI, described Unit the 3rd comprises: the first module, for parsing network resource identifier NRI from described P-TMSI; The second module, for judging the SGSN that whether has described NRI mark from the highest SGSN of described at least two priority levels; The 3rd module, in the judged result of described the second module when being, described request message is sent to the SGSN of described NRI mark, to complete the registration of described mobile terminal.
10. access network entity according to claim 9, is characterized in that, described first module also completes response message for receiving the registration that the highest SGSN of described priority level returns;
Described access network entity also comprises:
Unit the 4th, sends to described mobile terminal for described registration is completed to response message, completes the registration of described mobile terminal.
11. according to the access network entity described in claim 9 or 10, it is characterized in that, the highest SGSN of described priority level is SGSN corresponding to described access network entity, or the distance SGSN immediate SGSN corresponding with described access network entity, or the SGSN of mobile terminal access minimum number.
12. access network entity according to claim 11, is characterized in that, described Unit the 3rd also comprises:
Four module, for in the judged result of described the second module while being no, according to the Capacity Ratio of the highest SGSN of pre-configured described at least two priority levels, corresponding SGSN in the SGSN that described in described request message is sent to, at least two priority levels are the highest, to complete the registration of described mobile terminal; Or the mobile terminal access minimum number person in the SGSN that described in described request message is sent to, at least two priority levels are the highest, to complete the registration of described mobile terminal.
13. according to the access network entity described in claim 9 or 10, it is characterized in that, also comprises:
Unit the 5th, after receiving the request message of mobile terminal transmission in described first module, whether detect preferred generic packet wireless service support node SGSN function opens, if, notify described second unit to select state from described SGSN state table normal, and the highest SGSN of priority level.
14. access network entity according to claim 13, is characterized in that,
Do not open if detect described preferred SGSN function, Unit the 5th, also for the Capacity Ratio of the SGSN according to pre-configured, is sent to corresponding SGSN by described request message, to complete the registration of described mobile terminal.
15. access network entity of stating according to claim 9 or 10, is characterized in that, also comprise:
Unit the 6th, send and survey signaling for each SGSN in described Pool district, and detect in Preset Time, whether to receive the detection signaling response that the SGSN in described Pool district returns for described detection signaling, if, determine and return to that to survey the SGSN of signaling response normal, and by return the SGSN that surveys signaling response with and priority level write described SGSN state table.
16. according to the access network entity described in claim 9 or 10, it is characterized in that, also comprises:
Unit the 7th, the broadcast sending for the arbitrary SGSN receiving in described Pool district, it is abnormal that described broadcast is used to indicate described arbitrary SGSN; And determine that in described Pool district, all the other SGSN except described arbitrary SGSN are normal, and by described all the other SGSN with and priority level write described SGSN state table.
17. according to the access network entity described in claim 9 or 10, it is characterized in that, described access network entity comprises radio network controller (RNC) or base station controller BSC.
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