CN101808397A - Method and system for realizing registration to long-term evolution home base station - Google Patents
Method and system for realizing registration to long-term evolution home base station Download PDFInfo
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- CN101808397A CN101808397A CN200910077477A CN200910077477A CN101808397A CN 101808397 A CN101808397 A CN 101808397A CN 200910077477 A CN200910077477 A CN 200910077477A CN 200910077477 A CN200910077477 A CN 200910077477A CN 101808397 A CN101808397 A CN 101808397A
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Abstract
The invention discloses a method and a system for realizing registration to an LTE home base station. In the scheme of the invention, after the LTE home base station establishes the SCTP connection with a network element of a core network by an LTE home base station gateway, the LTE home base station sends an S1 interface signaling message for carrying out data switching of an application layer to the LTE home base station gateway and the S1 interface signaling message also carries registration information of the LTE home base station, thus, two functions of the LTE home base station, i.e. data switching with the application layer of the core network by the LTE home base station gateway and registration to the LTE home base station, are realized by one S1 interface. With the scheme provided by the invention, the limitation caused by copying a 3G HNB structure in the HNB registration signaling flow can be avoided, the generation of the signaling redundancy among the network elements can be avoided and the conditions that the cell is repeatedly defined and the protocol is excessively complex are avoided.
Description
Technical field
The present invention relates to Long Term Evolution (LTE, Long Term Evolution) technology, be meant a kind of method and system of the LTE of realization registering family base station especially.
Background technology
In present 3G network framework, the base station links to each other by Iu interface and core network (CN, Core Network).In the present LTE network architecture, the network configuration flattening, (E-UTRAN is Evolved-UTRAN) with evolution block core net network (EPC to be reduced to the evolved universal terrestrial wireless access network, Evolved PacketCore) two-stage links to each other by the S1 interface between the two.What Figure 1A and Figure 1B described respectively is the network architecture of 3G and LTE, and in the 3G network framework, the Iu interface is the interface between Radio Access Network and the core network; In the LTE network architecture, the S1 interface is the interface between Radio Access Network and the core network.
Fig. 2 is existing S1 protocol stack of the interface schematic diagram, as shown in Figure 2, S1 applying portion (S1-AP) is the top signaling agreement of S1 interface, be mainly used in the various signalings and the control of treatment S 1 interface control plane, has following function: evolution block core net network (EPC, Evolved Packet Core) bearer service management function; LTE activates subscriber equipment (UE, the User Equipment) mobility under (LTE_ACTIVE) state; The S1 paging function; Non-Access Stratum (NAS, Non-Access Stratum) node selection function; Initial context is set up function.
Home eNodeB is a kind of small-sized, low-power cellular basestation, gains the name because of being mainly used in indoor places such as family and office.One of effect of Home eNodeB is the replenishing of indoor covering, for the user provides speech and data, services as cellular network.Home eNodeB has low cost, supports plug and play, by characteristics such as broadband access, low-power, use single-mode terminal.Home eNodeB can insert in the 3G and the LTE network architecture.For the ease of Home eNodeB is managed, reduce influence to core network, introduced femto gateway in the Radio Access Network of access to family base station.
Fig. 3 is existing 3G Home eNodeB (HNB) network architecture schematic diagram, and as shown in Figure 3, in the 3G network, HNB links to each other with core network by femto gateway (HNB GW).Fig. 4 A and Fig. 4 B have described two kinds of implementations of LTE Home eNodeB (HeNB) network architecture respectively, be in the LTE network, two kinds of connected modes of HeNB and core network, a kind of implementation is HeNB and network element of EPC, is Mobility Management Entity (MME, Mobility Manegement Entity) directly links to each other, shown in Fig. 4 A; Another kind of implementation is a HeNB network element passing through femto gateway (HeNB GW) and EPC, is that MME links to each other, shown in Fig. 4 B.
In the network architecture shown in Fig. 4 B, interface between interface between HeNB and the HeNBGW, HeNB GW and the MME interface between two network elements appearred, i.e..At present, these two interfaces are all represented with S1-MME, for the ease of difference, can still interface direct-connected between HeNB and the MME be designated as the S1 interface, interface between HeNB and the HeNB GW is designated as the S1-A interface, interface between HeNB GW and the MME is designated as the S1-B interface, and these three interfaces all adopt the signaling process of existing S1 interface.
In 3G HNB framework, HNB and HNB GW register to HNB GW by the HNB register flow path after setting up SCTP (SCTP, StreamControl Transmission Protocol) connection.See that from HNB HNB GW is exactly a core network element, when HNB be connected with SCTP between the HNB GW set up after, first reciprocal process between HNB and the HNB GW is exactly the HNB register flow path.By the HNB register flow path, HNB provides current HNB sign (ID) and positional information and closed user group id information such as (CSG-ID, Closed Subscriber Group ID) to HNB GW, and HNB GW can provide and being connected of core network to HNB.In the application protocol of the Iu of 3G network framework interface, it is the UE initial message that UE initiates professional article one message to core network, does not have other signaling process to finish information interaction between HNB and the core network before.
At present, only clear and definite in the 3G home base station network framework HNB to the flow process of HNB GW registration; But, also clearly do not provide the specific implementation of HeNB to the flow process of HeNB GW registration for LTE home base station network framework.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method and system of the LTE of realization registering family base station, the register flow path of clear and definite LTE Home eNodeB.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method that realizes Long Term Evolution LTE registering family base station, the LTE Home eNodeB is set up SCTP SCTP by LTE femto gateway and core network and is connected, this method comprises: the LTE Home eNodeB sends the S1 interface signaling message that is used to carry out the application layer data exchange to the LTE femto gateway, also carries the log-on message of LTE Home eNodeB in this S1 interface signaling message.
Described log-on message includes but not limited to: public land mobile network PLMN sign, cell ID, tracking territory TA sign and CSG relevant information.
After the described transmission S1 interface signaling message, further comprise: the LTE femto gateway receives described S1 interface signaling message, carries out alignment processing according to the register requirement of whether accepting the LTE Home eNodeB.
When accepting the register requirement of LTE Home eNodeB, described processing comprises: extract and store the described log-on message that carries in the described S1 interface signaling message, foundation is connected with the S1 interface signaling of LTE Home eNodeB, carries out the application layer data exchange of LTE Home eNodeB and core network.
Described application layer data exchange includes but not limited to: the PLMN sign under territory, the LTE Home eNodeB is followed the tracks of in the tracking territory of overall LTE Base Station Identification, support, broadcasting.
After the described processing, further comprise: the LTE femto gateway is to LTE Home eNodeB echo reply message, the sign of carrying the LTE femto gateway in this response message.
When not accepting the register requirement of LTE Home eNodeB, described processing comprises: do not set up with the signaling of LTE Home eNodeB and be connected, return to connect to the LTE Home eNodeB and set up failed message, this connection is set up and is further carried failure cause in the failed message.
A kind of system that realizes the LTE registering family base station, this system comprise LTE Home eNodeB and LTE femto gateway, and described LTE femto gateway is used to set up the LTE Home eNodeB and is connected with SCTP between the core network; Described LTE Home eNodeB is used for sending the S1 interface signaling message that is used to carry out the application layer data exchange to the LTE femto gateway, also carries the log-on message of LTE Home eNodeB in this S1 interface signaling message.
Described LTE femto gateway is further used for receiving described S1 interface signaling message, carries out alignment processing according to the register requirement of whether accepting the LTE Home eNodeB.
When accepting the register requirement of LTE Home eNodeB, described LTE femto gateway is used for: extract and store the log-on message that described S1 interface signaling message is carried, foundation is connected with the S1 interface signaling of LTE Home eNodeB, carries out the application layer data exchange of LTE Home eNodeB and core network; Perhaps, when not accepting the register requirement of LTE Home eNodeB, described LTE femto gateway is not set up with the signaling of LTE Home eNodeB and is connected, and is used for returning connection to the LTE Home eNodeB and sets up failed message.
Among the present invention program, after the LTE Home eNodeB is set up SCTP and is connected by LTE femto gateway and core network element, the LTE Home eNodeB sends S1 interface signaling message to the LTE femto gateway, in this S1 interface signaling message except being used to carry out the information of application layer data exchange, also carry the log-on message of LTE Home eNodeB, like this, just realized that by a S1 interface signaling LTE Home eNodeB is by the application layer data exchange of LTE femto gateway and core network and two kinds of functions of registration of LTE Home eNodeB.
The scheme that proposes by the present invention can avoid indiscriminately imitating the limitation that the register command flow process of HNB in the 3G HNB framework is brought, and avoids making between the network element signaling too redundant, avoids occurring that element definitions repeats and agreement complicated situation too.
Description of drawings
Figure 1A is existing 3G network configuration diagram;
Figure 1B is existing LTE network architecture schematic diagram;
Fig. 2 is existing S1 protocol stack of the interface schematic diagram;
Fig. 3 is existing 3G HNB network architecture schematic diagram;
Fig. 4 A is existing LTE HeNB network architecture schematic diagram one;
Fig. 4 B is existing LTE HeNB network architecture schematic diagram two;
Fig. 5 is the embodiment of the invention one a LTE registering family base station flow chart;
Fig. 6 is the embodiment of the invention two LTE registering family base station flow charts;
Fig. 7 is for realizing the system configuration schematic diagram of LTE registering family base station among the present invention.
Embodiment
Though the simplest method is exactly to adopt the HNB register command flow process of the Iuh interface in the 3G HNB framework fully at LTE HeNB framework S1-A interface, the existing problem of such processing is exactly the Signalling exchange that has increased between HeNB and the HeNB GW.Concrete reason is as follows: in the LTE network, when the base station be connected with SCTP between the MME set up after, set up message by the S1 interface of S1-A interface between base station and the core network and finish information interaction; And in the 3G family base station system, information of carrying in the registration message of Home eNodeB and S1 interface are set up the information that message carries and can be repeated to some extent.Like this, with the signaling redundancy that causes between the network element, element definitions repetition and agreement are too complicated.Therefore, the present invention proposes the registration scenarios of LTE Home eNodeB, to avoid above limitation.
Among the present invention, the LTE Home eNodeB links to each other with core network by the LTE femto gateway, after the LTE Home eNodeB is set up SCTP and is connected by LTE femto gateway and core network network element, the LTE Home eNodeB sends the S1 interface signaling message that is used to carry out the application layer data exchange to the LTE femto gateway, also carry the log-on message of LTE Home eNodeB in this S1 interface signaling message, to realize of the registration of LTE Home eNodeB, just realized that by a S1 interface signaling LTE Home eNodeB is by the application layer data exchange of LTE femto gateway and core network and two kinds of functions of registration of LTE Home eNodeB like this at the LTE femto gateway.
Further, the LTE femto gateway receives the S1 interface signaling message come from the LTE Home eNodeB, carries out alignment processing according to the register requirement of whether accepting the LTE Home eNodeB.If the LTE femto gateway is accepted the register requirement of LTE Home eNodeB, and agreement is set up the S1 interface signaling with the LTE Home eNodeB and is connected, then from the S1 interface signaling message of receiving, extract and store the log-on message of LTE Home eNodeB, and foundation is connected with the signaling of LTE Home eNodeB, carry out the application layer data exchange of LTE Home eNodeB and core network, further, to LTE Home eNodeB echo reply message, the sign of carrying the LTE femto gateway in this response message; If the LTE femto gateway is not accepted the register requirement of LTE Home eNodeB, then do not set up with the signaling of LTE Home eNodeB and be connected, to return to connect to the LTE Home eNodeB and set up failed message, this connection is set up in the failed message can carry failure cause.
Fig. 5 is the embodiment of the invention one a LTE registering family base station flow chart, and as shown in Figure 5, the register flow path of LTE Home eNodeB comprises following concrete steps:
Step 501:LTE Home eNodeB is set up SCTP with the LTE femto gateway and is connected, and promptly the LTE Home eNodeB is set up SCTP by the LTE femto gateway with the core network network element and is connected.
Step 502:LTE Home eNodeB is used to carry out the S1 interface connection foundation request that application layer data exchanges to the transmission of LTE femto gateway, also carries the log-on message of LTE Home eNodeB during this S1 interface connection foundation is asked.Described log-on message includes but not limited to: LTE Home eNodeB sign, LTE Home eNodeB title, LTE femtocell positions information, public land mobile network (PLMN, Public LandMobile-communication Network) sign, cell ID, tracking territory (TA, Tracking Area) sign and CSG relevant information etc.Wherein, LTE Home eNodeB sign is used to identify a LTE Home eNodeB, to distinguish Different L TE Home eNodeB; The PLMN sign is used to identify the affiliated PLMN of LTE Home eNodeB; Cell ID is used to identify the sub-district at LTE Home eNodeB place; TA sign: the tracking territory that is used to identify LTE Home eNodeB place; The CSG relevant information comprises CSG ID, LTE home base station access mode etc.
Step 503:LTE femto gateway receives the S1 interface and connects the request of foundation, determine to accept the register requirement of LTE Home eNodeB, and agreement is set up signaling with the LTE Home eNodeB and is connected, the LTE femto gateway is set up and is connected with the S1 interface signaling of LTE Home eNodeB, extract and store the S1 interface and connect log-on message that carry, the LTE Home eNodeB in the request of foundation, and carry out the application layer data exchange and the preservation of LTE Home eNodeB and core network.The application layer data exchange mainly comprises: the PLMN sign under territory, the LTE Home eNodeB is followed the tracks of in the tracking territory (TAs) of overall LTE Base Station Identification, support, broadcasting.
Step 504:LTE femto gateway sends the connection of S1 interface to the LTE Home eNodeB and sets up request-reply message, and the successful connection of notice LTE Home eNodeB signaling is set up and successfully registration.The S1 interface connects sets up the sign that carries the LTE femto gateway in the request-reply message.
Fig. 6 is the embodiment of the invention two LTE registering family base station flow charts, and as shown in Figure 6, the register flow path of LTE Home eNodeB comprises following concrete steps:
Step 601:LTE Home eNodeB is set up SCTP with the LTE femto gateway and is connected, and promptly the LTE Home eNodeB is set up SCTP by LTE femto gateway and core network element and is connected.
Step 602:LTE Home eNodeB is used to carry out the S1 interface connection foundation request that application layer data exchanges to the transmission of LTE femto gateway, also carries the log-on message of LTE Home eNodeB during this S1 interface connection foundation is asked.Described log-on message includes but not limited to: LTE Home eNodeB sign, LTE Home eNodeB title, LTE femtocell positions information, PLMN sign, cell ID, TA sign and CSG relevant information etc.
Step 603:LTE femto gateway receives the S1 interface and connects the request of foundation, determine not accept the register requirement of LTE Home eNodeB, do not set up with the signaling of LTE Home eNodeB and be connected, send the connection of S1 interface to the LTE Home eNodeB and set up failed message, set up S1 interface signaling to LTE Home eNodeB notice LTE femto gateway refusal with it by this message and be connected, and the register requirement of refusal LTE Home eNodeB.
Also disclose a kind of system of the LTE of realization registering family base station among the present invention, comprised LTE Home eNodeB and LTE femto gateway, wherein, the LTE femto gateway is used to set up the LTE Home eNodeB and is connected with SCTP between the core network; The LTE Home eNodeB is used for sending the S1 interface signaling message that is used to carry out the application layer data exchange to the LTE femto gateway, also carries the log-on message of LTE Home eNodeB in this S1 interface signaling message.The LTE femto gateway is further used for carrying out alignment processing according to the register requirement of whether accepting the LTE Home eNodeB.
If the LTE femto gateway is accepted the register requirement of LTE Home eNodeB, and agreement is set up signaling with the LTE Home eNodeB and is connected, then be used for extracting and storing the log-on message of LTE Home eNodeB from the S1 interface signaling message of receiving, and foundation is connected with the S1 interface signaling of LTE Home eNodeB, carries out the application layer data exchange of LTE Home eNodeB and core network; Be further used for to LTE Home eNodeB echo reply message, the sign of carrying the LTE femto gateway in this response message.
If the LTE femto gateway is not accepted the register requirement of LTE Home eNodeB, then do not set up with the signaling of LTE Home eNodeB and be connected, be used for returning to connect setting up failed message to the LTE Home eNodeB, this connection is set up in the failed message can carry failure cause.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (10)
1. method that realizes Long Term Evolution LTE registering family base station, the LTE Home eNodeB is set up SCTP SCTP by LTE femto gateway and core network and is connected, and it is characterized in that this method comprises:
The LTE Home eNodeB sends the S1 interface signaling message that is used to carry out the application layer data exchange to the LTE femto gateway, also carries the log-on message of LTE Home eNodeB in this S1 interface signaling message.
2. method according to claim 1 is characterized in that, described log-on message includes but not limited to: public land mobile network PLMN sign, cell ID, tracking territory TA sign and CSG relevant information.
3. method according to claim 1 and 2, it is characterized in that, after the described transmission S1 interface signaling message, further comprise: the LTE femto gateway receives described S1 interface signaling message, carries out alignment processing according to the register requirement of whether accepting the LTE Home eNodeB.
4. method according to claim 3, it is characterized in that, when accepting the register requirement of LTE Home eNodeB, described processing comprises: extract and store the described log-on message that carries in the described S1 interface signaling message, foundation is connected with the S1 interface signaling of LTE Home eNodeB, carries out the application layer data exchange of LTE Home eNodeB and core network.
5. method according to claim 4 is characterized in that, described application layer data exchange includes but not limited to: the PLMN sign under territory, the LTE Home eNodeB is followed the tracks of in the tracking territory of overall LTE Base Station Identification, support, broadcasting.
6. method according to claim 4 is characterized in that, after the described processing, further comprises: the LTE femto gateway is to LTE Home eNodeB echo reply message, the sign of carrying the LTE femto gateway in this response message.
7. method according to claim 3, it is characterized in that, when not accepting the register requirement of LTE Home eNodeB, described processing comprises: do not set up with the signaling of LTE Home eNodeB and be connected, return connection to the LTE Home eNodeB and set up failed message, this connection is set up and is further carried failure cause in the failed message.
8. system that realizes the LTE registering family base station, this system comprises LTE Home eNodeB and LTE femto gateway, it is characterized in that,
Described LTE femto gateway is used to set up the LTE Home eNodeB and is connected with SCTP between the core network;
Described LTE Home eNodeB is used for sending the S1 interface signaling message that is used to carry out the application layer data exchange to the LTE femto gateway, also carries the log-on message of LTE Home eNodeB in this S1 interface signaling message.
9. system according to claim 8 is characterized in that, described LTE femto gateway is further used for receiving described S1 interface signaling message, carries out alignment processing according to the register requirement of whether accepting the LTE Home eNodeB.
10. system according to claim 9 is characterized in that,
When accepting the register requirement of LTE Home eNodeB, described LTE femto gateway is used for: extract and store the log-on message that described S1 interface signaling message is carried, foundation is connected with the S1 interface signaling of LTE Home eNodeB, carries out the application layer data exchange of LTE Home eNodeB and core network; Perhaps,
When not accepting the register requirement of LTE Home eNodeB, described LTE femto gateway is not set up with the signaling of LTE Home eNodeB and is connected, and is used for returning connection to the LTE Home eNodeB and sets up failed message.
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| CN102858007A (en) * | 2011-06-29 | 2013-01-02 | 中兴通讯股份有限公司 | Processing method and device of femtocell registration message |
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| CN103974235A (en) * | 2013-01-25 | 2014-08-06 | 中兴通讯股份有限公司 | Route addressing method and system, source base station, target base station and gateway |
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| CN105052182A (en) * | 2013-12-31 | 2015-11-11 | 华为技术有限公司 | Method, device and system for selecting lte network |
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| CN111165022A (en) * | 2017-09-28 | 2020-05-15 | 瑞典爱立信有限公司 | Efficient PLMN coding for 5G |
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Application publication date: 20100818 |