CN101801089B - Paging optimization method and system - Google Patents
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- CN101801089B CN101801089B CN200910077968.3A CN200910077968A CN101801089B CN 101801089 B CN101801089 B CN 101801089B CN 200910077968 A CN200910077968 A CN 200910077968A CN 101801089 B CN101801089 B CN 101801089B
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Abstract
The invention discloses a paging optimization method, which comprises the following steps: judging whether UE supports the closed system group (CSG) concept or not according to the stored subscription information when a core network needs to page the user equipment (UE); determining the family base station gateway to which paging messages need to be sent according to the paging regions of the UE and the CSG list allowing the UE to be accessed when that the UE supports the CSG concept is determined, and carrying the CSG list allowing the UE to be accessed in the paging messages to be sent to the family base station gateway; and sending the paging messages to all CSG cells in a mixed accession mode and all family base stations in an open accession mode in the paging regions, and family base stations in all CSG cells in the CSG list allowing the UE to be accessed. The invention also discloses a paging optimization system, which can ensure that the paging messages sent from the core network can be received no matter which CSG cell the UE is accessed in.
Description
Technical field
The present invention relates to the paging technique based on Home eNodeB, relate in particular to a kind of paging optimization method and system.
Background technology
Home eNodeB is a kind of small base station that is arranged on subscriber household or Administrative Area, different according to the interface providing, Home eNodeB can access third generation digital communication (3G, 3rd Generation) or Long Term Evolution (LTE, Long Time Evolution) in the network architecture, and Home eNodeB is called Home eNodeB (HNB, Home Node Base Station) in 3G system, in LTE system, be called evolved Home eNodeB (HeNB, Home E-UTRAN NodeB).As shown in Figure 1, in existing 3G network framework, between core net (CN, Core Network) and universal land radio access web (UTRAN, Universal Terrestrial Radio Access Network), by Iu interface, be connected; The radio network controller being connected by Iub interface (RNC, Radio Network Controller) and HNB form the RNS (RNS, Radio Network Subsystem) in UTRAN.As shown in Figure 2, in existing LTE network architecture, be positioned at evolved universal terrestrial wireless access network (E-UTRAN, Evolved Universal Terrestrial Radio Access Network) HeNB is connected by S1 interface and evolution block core net (EPC, Evolved Packet Core).
At present, for the ease of Home eNodeB is managed and is controlled, the impact of minimizing on core net, family base station system has been introduced femto gateway, and femto gateway is called femto gateway (HNB GW in 3G system, Home NodeB Gateway), in LTE system, be called evolution femto gateway (HeNB GW, Home E-UTRAN NodeB Gateway).Introduce the 3G system of HNB GW, as shown in Figure 3, HNB's its network architecture is connected with CN by HNB GW.The LTE system of introducing HeNB GW, its network architecture has two kinds, and a kind of HeNB of being is directly connected with EPC, as shown in Figure 4; Another kind is that HeNB passes through HeNB GW and is connected with EPC, as shown in Figure 5.
Paging in 3G/LTE network architecture is to send beep-page message to the user terminal (UE in idle condition or connection status by Access Network (UTRAN/E-UTRAN) or core net (CN/EPC), User Equipment), beep-page message can be initiated by core net, also can be initiated by Access Network.The object that core net is initiated paging is to make core net can ask Access Network contact UE, and Access Network also can be initiated paging need to be to UE transmitting system message time.Paging is used connectionless signaling procedure at Iu/S1 interface.Core net triggers paging by sending beep-page message, and Access Network sends to UE by the beep-page message of core net, makes paged UE initiate to be connected process of establishing with the signaling of core net.If UE is by Home eNodeB core network access, and has femto gateway in family base station system, beep-page message is transmitted to Home eNodeB by femto gateway so.In 3G framework, beep-page message sends to a band of position (LA, Location Area) conventionally, or Routing Area (RA, Routing Area); In LTE framework, beep-page message sends to one or more tracing areas (TA, Track Area) conventionally.In beep-page message, carry the paging domain sign of the required transmission of beep-page message.
Closed user group (CSG, Closed Subscriber Group) be third generation partner plan (3GPP, 3rd Generation Partnership Project) concept for Home eNodeB that normal structure proposes, the network element in the 8th version (Release8) and the 3GPP network architecture afterwards is just likely supported the concept of CSG.The family base station overlay area that several communities that Home eNodeB covers form, is called CSG.CSG is a concept in logic, and as shown in Figure 6, a CSG can be comprised of one or more Home eNodeB, and each CSG has sign separately.In addition, CSG has the discontinuity in geographical position, and the different home base station belonging in same CSG can be positioned at different paging domain (LA/RA/TA).Each CSG adopts the unique identification of a Public Land Mobile Nerwork (PLMN, Public Land Mobile Network) operator the inside to identify, and is called family base station overlay area sign (CSG ID); And or a plurality of community in CSG be called CSG community (CSG cell), the correlation technique of one family base station in Yi Ge CSG community is only discussed at present.Allow the UE of certain family base station overlay area of access, be called the user of this CSG.Only have CSG user through authorizing (such as: kinsfolk, member of community or with group membership etc.) could access this family base station overlay area.Operator wants to monitor the use of Home eNodeB, if user need to become the authorized user of a CSG, needs and operator contract, and user's CAMEL-Subscription-Information can be preserved in core network data storehouse.UE is authorized to be after CSG user, and core net has been preserved all CSG signs of the authorized access of UE, forms a CSG list that allows UE access, claims again white list.UE is when core network access, and in the UE initial message that Home eNodeB sends to core net, also whether portability message identification UE supports CSG concept.
CSG concept based on above-mentioned, in order to reduce the signaling transmitting in network, alleviates the load of network, can dwindle the paging range to UE, to being linked into the subscriber paging process of CSG community, is optimized.Current existing paging optimization method carries out in two steps: the first step, core net determines according to the white list of the LA/RA/TA at the UE place of paging and UE the femto gateway that beep-page message should send, and in beep-page message, carries the CSG list (white list) that allows this UE access; Second step, femto gateway mails to the Home eNodeB in all CSG community in the white list that allows UE access CSG beep-page message after receiving beep-page message.
Yet at present 3GPP normal structure has proposed new demand to the access module of Home eNodeB, one family base station has a kind of in following three kinds of access modules: sealing access module, mix access module and open access module.For the Home eNodeB of sealing access module, only have the CSG contracted user of the affiliated CSG in this base station just can access this Home eNodeB; And for the Home eNodeB that mixes access module and open access module, non-CSG contracted user also can access this Home eNodeB.Therefore, adopt paging that paging optimization method of the prior art cannot be correct to mix the non-CSG contracted user of access module and be linked into the UE of open access module home base station cells to access.
In addition, CSG concept is for the network after Release8, for the network before Release8, does not support CSG concept.And prior art is for the UE before Release8, and the UE that does not support CSG concept after Release8, a kind of paging optimization method is not but provided.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of paging optimization method and system, cannot be to not supporting the UE of CSG concept to carry out calling optimization to solve prior art, and to access, mix the problem of the signing UE of non-CSG of access module and the UE of the open access module of access home base station cells to supporting the UE of CSG concept to carry out the paging that calling optimization cannot be correct.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of paging optimization method, the method comprises:
When core net needs calling user terminal UE, judge whether described UE supports closed user group CSG concept, and when determining that described UE supports CSG concept, according to the CSG list of the paging domain at described UE place and the described UE access of permission, determine the femto gateway that beep-page message should send, and the CSG list that allows described UE access is carried at and in beep-page message, sends to described femto gateway;
Described femto gateway is inquired about the home base station cells of all mixing access module CSG communities and all open access modules in described paging domain, and described beep-page message is sent to all mixing access module CSG community in described paging domain, the home base station cells of all open access modules, and the Home eNodeB in all CSG community in described permission UE access CSG list.
Described transmission beep-page message specifically comprises:
If described UE is linked into the Home eNodeB of sealing access module or mixing access module with CSG contracted user identity, described femto gateway sends to all mixing access module CSG community in described paging domain by described beep-page message, the home base station cells of all open access modules, and the Home eNodeB in all CSG community in described permission UE access CSG list;
If described UE is linked into non-CSG contracted user identity the Home eNodeB that mixes access module or open access module, described permission UE access CSG list be sky, and described femto gateway sends to described beep-page message the Home eNodeB in the community of all mixing access module CSG communities and all open access modules in described paging domain.
The method further comprises: after the paging domain sign of described core net in beep-page message, mark is set, to identify, whether at described paging domain, carries out calling optimization; Described femto gateway determines whether to carry out calling optimization at corresponding paging domain according to described mark.
The band of position that described paging domain carries be beep-page message in third generation digital communication 3G network in or Routing Area information, one or more tracing area information in the tracking zone list information of carrying be beep-page message in Long Term Evolution LTE network in.
The present invention also provides a kind of paging optimization method, and the method comprises:
When core net needs paging UE, judge whether described UE supports CSG concept, and when definite described UE does not support CSG concept, according to the paging domain at described UE place, determine the femto gateway that beep-page message should send, and described beep-page message is sent to femto gateway;
Described femto gateway allows the IMSI International Mobile Subscriber Identity IMSI list of the UE of access according to coupled Home eNodeB, inquiry allows the Home eNodeB of described UE access, and described beep-page message is sent to all Home eNodeB that allow described UE access.
Describedly do not support the UE of CSG concept to comprise: third generation partner plans the UE before 3GPP the 8th version, and after 3GPP the 8th version and do not support the UE of CSG concept.
The method further comprises: after the paging domain sign of described core net in beep-page message, mark is set, to identify, whether at described paging domain, carries out calling optimization; Described femto gateway determines whether to carry out calling optimization at corresponding paging domain according to described mark.
Described paging domain is the band of position or the Routing Area information of carrying in beep-page message in 3G network, one or more tracing area information in the tracking zone list information of carrying be beep-page message in LTE network in.
The present invention also provides a kind of calling optimization system, and this system comprises:
Core net, for when needs paging UE, judge whether described UE supports CSG concept, and when determining that described UE supports CSG concept, according to the CSG list of the permission UE access of the paging domain at described UE place and the described UE access of permission, determine the femto gateway that beep-page message should send, and the CSG list that allows described UE access is carried at and in beep-page message, sends to described femto gateway;
Femto gateway, for inquiring about the home base station cells of described paging domain all mixing access module CSG community and all open access modules, and described beep-page message is sent to all mixing access module CSG community in described paging domain, the home base station cells of all open access modules, and the Home eNodeB in all CSG community in the CSG list of described permission UE access;
Home eNodeB, for receiving the beep-page message from described femto gateway.
The present invention also provides a kind of calling optimization system, and this system comprises:
Core net, for when needs paging UE, judge whether described UE supports CSG concept, and when definite described UE does not support CSG concept, according to the paging domain at described UE place, determine the femto gateway that beep-page message should send, and described beep-page message is sent to femto gateway;
Femto gateway, for allow the IMSI list of the UE of access, inquiry to allow the Home eNodeB of described UE access according to coupled Home eNodeB, and sends to described beep-page message all Home eNodeB that allow described UE access;
Home eNodeB, for receiving the beep-page message from described femto gateway.
Paging optimization method provided by the present invention and system, for the UE that supports CSG concept, when core net and femto gateway carry out paging, beep-page message is sent to all mixing access module CSG community in paging domain, the home base station cells of all open access modules, and the Home eNodeB in all CSG community in the CSG list (white list) of permission UE access; For the UE that does not support CSG concept, while carrying out paging operation, femto gateway allows the IMSI list of the UE of access according to coupled Home eNodeB, inquiry allows the Home eNodeB of UE access, and beep-page message is sent to all Home eNodeB that allow UE access.Thereby guaranteed can both receive the beep-page message that core net is sent when UE is linked into any access module Zhong CSG community, and to the UE before Release8, and after Release8 and do not support the UE of CSG concept also to realize calling optimization.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of 3G network framework in prior art;
Fig. 2 is the schematic diagram of LTE network architecture in prior art;
Fig. 3 is the schematic diagram of introducing the 3G network framework of HNB GW in prior art;
Fig. 4 is the schematic diagram one of introducing the LTE network architecture of HeNB GW in prior art;
Fig. 5 is the schematic diagram two of introducing the LTE network architecture of HeNB GW in prior art;
Fig. 6 is the network architecture schematic diagram of CSG in prior art;
Fig. 7 is the flow chart one of a kind of paging optimization method of the present invention;
Fig. 8 is the flowchart 2 of a kind of paging optimization method of the present invention;
Fig. 9 is the composition structural representation of a kind of calling optimization system of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the technical solution of the present invention is further elaborated.
A kind of paging optimization method provided by the present invention, can realize supporting the calling optimization of the UE of CSG concept, also can realize not supporting the calling optimization of the UE of CSG concept.Wherein, to supporting the UE calling optimization of CSG concept, as shown in Figure 7, mainly comprise the following steps:
Step 701, when core net needs paging UE, judge whether UE supports CSG concept, and when definite UE supports CSG concept, according to the CSG list (white list) of the permission UE access of the paging domain at UE place and permission UE access, determine the femto gateway that beep-page message should send, and the CSG list (white list) that allows UE access is carried at and in beep-page message, sends to femto gateway.
For each UE, in the database of core net, store the paging domain at its place, in 3G network, be the band of position or the Routing Area information of in beep-page message, carrying, one or more tracing area information in the tracking zone list information of carrying be beep-page message in LTE network in; In addition, for after Release8 and support the UE of CSG concept also to store the CSG list (white list) that allows this UE access in core net related network elements or database.
It is pointed out that due to the CAMEL-Subscription-Information of preserving each UE respective user in core net, so core net is while needing paging UE, can judge whether this UE supports CSG concept according to CAMEL-Subscription-Information corresponding to this UE.If show that the user of UE is CSG contracted user in CAMEL-Subscription-Information corresponding to UE, this UE of judgement judgement supports CSG concept; If show that the user of UE is non-CSG contracted user in CAMEL-Subscription-Information corresponding to UE, judge that this UE does not support CSG concept.In addition, core net receive after UE initial message also can according in the UE initial message of S1 interface, carry whether support CSG mark judges whether UE supports CSG concept.For the UE that supports CSG concept, core net is when carrying out paging to it, need to be according to the paging domain at UE place and the CSG list (white list) that allows UE to access, determine the femto gateway that beep-page message should send, and the CSG list (white list) that allows UE access is carried at and in beep-page message, sends to femto gateway.
Step 702, the home base station cells of all mixing access module CSG communities and all open access modules in femto gateway inquiry paging domain, and beep-page message is sent to all mixing access module CSG community in paging domain, the home base station cells of all open access modules, and the Home eNodeB in all CSG community in the CSG list (white list) of permission UE access.
For after Release8 and support the UE of CSG concept, it can be linked into the Home eNodeB in the CSG of sealing access module with CSG contracted user identity, and mixes the Home eNodeB in the CSG of access module; Can also be linked into the Home eNodeB mixing in access module CSG community with non-CSG contracted user identity, and the Home eNodeB in the home base station cells of open access module.Therefore,, while carrying the CSG list (white list) that allows UE access in the beep-page message that femto gateway receives, the UE that shows to need paging is after Release8 and supports the UE of CSG concept; Thereby beep-page message need to be sent to all mixing access module CSG community in paging domain, the home base station cells of all open access modules, and the Home eNodeB in all CSG community in the CSG list (white list) of permission UE access, and further search the UE in overlay area separately by each Home eNodeB, to guarantee paging to this UE.
Further, when the CSG list that the permission UE receiving when femto gateway accesses (white list) is empty, femto gateway only sends to beep-page message the Home eNodeB of coupled all mixing access modules, and the Home eNodeB of all open access modules.
For the calling optimization of not supporting the UE of CSG concept, as shown in Figure 8, mainly comprise the following steps:
In the present invention, do not support the UE of CSG concept to comprise the UE before Release8, and after Release8 and do not support the UE of CSG concept.For this class UE, core net, when it is carried out to paging, only need be determined the femto gateway that beep-page message should send according to the paging domain at UE place; In sending to the beep-page message of femto gateway, do not carry the CSG list (white list) that allows UE access yet.
Before Release8, or after Release8 and do not support the UE of CSG concept, because core net is not carried the CSG list (white list) that allows UE access in sending to the beep-page message of femto gateway, therefore, when femto gateway does not allow the CSG list (white list) of UE access in the beep-page message receiving, if Home eNodeB is by judging and need to carry out calling optimization beep-page message, for this type of UE, owing to can preserving a coupled Home eNodeB in femto gateway or in core network data storehouse and allow the IMSI list of the UE that accesses, therefore, femto gateway can be according to the IMSI list of storage, inquiry allows all Home eNodeB of this UE access, and all Home eNodeB that send to this UE of permission to access beep-page message, by each Home eNodeB, further search the UE in overlay area separately again, to guarantee paging to this UE.
As a kind of preferred embodiment of the present invention, core net can arrange mark after the paging domain sign in beep-page message, to identify, whether at corresponding paging domain, carries out calling optimization; Femto gateway determines whether to carry out calling optimization operation at corresponding paging domain according to this mark.For example: paging domain 1 is labeled as execution calling optimization, paging domain 2 and paging domain 3 are labeled as does not carry out calling optimization, the mark that femto gateway arranges according to core net, in the calling optimization operation shown in the above-mentioned Fig. 1 of the interior execution of paging domain 1, in paging domain 2 and paging domain 3, do not carry out the calling optimization operation shown in above-mentioned Fig. 1.
For realizing the paging optimization method of the invention described above, a kind of calling optimization system provided by the invention, as shown in Figure 9, this system comprises: core net 10, femto gateway 20 and Home eNodeB 30.For realizing paging optimization method shown in Fig. 7, core net 10 in this system is for when the needs paging UE, according to the CAMEL-Subscription-Information of preserving, judge whether UE supports CSG concept, and when definite UE supports CSG concept, according to the CSG list (white list) of the paging domain at UE place and permission UE access, determine the femto gateway 20 that beep-page message should send, and the CSG list (white list) that allows UE access is carried at and in beep-page message, sends to femto gateway 20.Femto gateway 20, for inquiring about the home base station cells of paging domain all mixing access module CSG community and all open access modules, and beep-page message is sent to all mixing access module CSG community in paging domain, the home base station cells of all open access modules, and the Home eNodeB 30 in all CSG community in the CSG list (white list) of permission UE access.Home eNodeB 30, for receiving the beep-page message from femto gateway.
For realizing paging optimization method shown in Fig. 8, core net 10 in this system is for when the needs paging UE, according to the CAMEL-Subscription-Information of preserving, judge whether UE supports CSG concept, and when definite UE does not support CSG concept, according to the paging domain at UE place, determine the femto gateway 20 that beep-page message should send, in the beep-page message that sends to femto gateway 20, do not carry the CSG list (white list) that allows UE access; Accordingly, femto gateway 20 is also for allowing the IMSI list of the UE of access according to coupled Home eNodeB, and inquiry allows the Home eNodeB 30 of UE access, and beep-page message is sent to all Home eNodeB 30 that allow UE access.Home eNodeB 30, for receiving the beep-page message from femto gateway 20.
In sum, the present invention can guarantee can both receive the beep-page message that core net is sent when UE is linked into any access module Zhong CSG community, and to the UE before Release8, and after Release8 and do not support the UE of CSG concept also to realize calling optimization.The present invention is suitable for for 3G network framework and LTE network architecture.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.
Claims (6)
1. a paging optimization method, is characterized in that, the method comprises:
When core net needs calling user terminal UE, judge whether described UE supports closed user group CSG concept, and when determining that described UE supports CSG concept, according to the CSG list of the paging domain at described UE place and the described UE access of permission, determine the femto gateway that beep-page message should send, and the CSG list that allows described UE access is carried at and in beep-page message, sends to described femto gateway;
Described femto gateway is inquired about the home base station cells of all mixing access module CSG communities and all open access modules in described paging domain, and described beep-page message is sent to all mixing access module CSG community in described paging domain, the home base station cells of all open access modules, and the Home eNodeB in all CSG community in described permission UE access CSG list;
When definite described UE does not support CSG concept, according to the paging domain at described UE place, determine the femto gateway that beep-page message should send, and described beep-page message is sent to femto gateway;
Described femto gateway allows the IMSI International Mobile Subscriber Identity IMSI list of the UE of access according to coupled Home eNodeB, inquiry allows the Home eNodeB of described UE access, and described beep-page message is sent to all Home eNodeB that allow described UE access.
2. paging optimization method according to claim 1, is characterized in that, described transmission beep-page message specifically comprises:
If described UE is linked into the Home eNodeB of sealing access module or mixing access module with CSG contracted user identity, described femto gateway sends to all mixing access module CSG community in described paging domain by described beep-page message, the home base station cells of all open access modules, and the Home eNodeB in all CSG community in described permission UE access CSG list;
If described UE is linked into non-CSG contracted user identity the Home eNodeB that mixes access module or open access module, described permission UE access CSG list be sky, and described femto gateway sends to described beep-page message the Home eNodeB in the community of all mixing access module CSG communities and all open access modules in described paging domain.
3. paging optimization method according to claim 1, is characterized in that, does not describedly support the UE of CSG concept to comprise: third generation partner plans the UE before 3GPP the 8th version, and after 3GPP the 8th version and do not support the UE of CSG concept.
4. according to paging optimization method described in claims 1 to 3 any one, it is characterized in that, the method further comprises: after the paging domain sign of described core net in beep-page message, mark is set, to identify, whether at described paging domain, carries out calling optimization; Described femto gateway determines whether to carry out calling optimization at corresponding paging domain according to described mark.
5. according to paging optimization method described in claims 1 to 3 any one, it is characterized in that, the band of position that described paging domain carries be beep-page message in third generation digital communication 3G network in or Routing Area information, one or more tracing area information in the tracking zone list information of carrying be beep-page message in Long Term Evolution LTE network in.
6. a calling optimization system, is characterized in that, this system comprises:
Core net, for when needs paging UE, judge whether described UE supports CSG concept, and when determining that described UE supports CSG concept, according to the CSG list of the permission UE access of the paging domain at described UE place and the described UE access of permission, determine the femto gateway that beep-page message should send, and the CSG list that allows described UE access is carried at and in beep-page message, sends to described femto gateway;
Femto gateway, for inquiring about the home base station cells of described paging domain all mixing access module CSG community and all open access modules, and described beep-page message is sent to all mixing access module CSG community in described paging domain, the home base station cells of all open access modules, and the Home eNodeB in all CSG community in the CSG list of described permission UE access;
Home eNodeB, for receiving the beep-page message from described femto gateway;
Core net, also, for when definite described UE does not support CSG concept, determines according to the paging domain at described UE place the femto gateway that beep-page message should send, and described beep-page message is sent to femto gateway;
Femto gateway, also for allow the IMSI list of the UE of access, inquiry to allow the Home eNodeB of described UE access according to coupled Home eNodeB, and sends to described beep-page message all Home eNodeB that allow described UE access.
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| CN101801089A (en) | 2010-08-11 |
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