CN102378310A - Method and device for determining gateway node - Google Patents
Method and device for determining gateway node Download PDFInfo
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- CN102378310A CN102378310A CN2010102518695A CN201010251869A CN102378310A CN 102378310 A CN102378310 A CN 102378310A CN 2010102518695 A CN2010102518695 A CN 2010102518695A CN 201010251869 A CN201010251869 A CN 201010251869A CN 102378310 A CN102378310 A CN 102378310A
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Abstract
The embodiment of the invention discloses a method and device for determining a gateway node. By employing the technical scheme of the embodiment of the invention, when a MME (Mobility Management Entity) for supporting a RN (Relay node) is accessed at the RN through a donor cell, a donor evolved node (DeNB) affiliated at present by the RN can be directly selected as the gateway node of the RN by the MME, so that the start flow of the RN can be simplified; the start time of the RN is shortened; and when the RN is distributed to a non-DeNB gateway node, the possibly generated canceling and registering signaling flow and the bearing management process are reduced.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of definite method and apparatus of gateway node.
Background technology
For the GSM in future, for example B3G (Beyond Third Generation, back three generations) system or LTE-A (Long Term Evolution-Advanced; Senior Long Term Evolution) system, system will provide higher peak data rate and cell throughout, simultaneously; Also need bigger bandwidth, at present, the unassigned bandwidth below the 2GHz seldom; The part or all of bandwidth that the B3G system needs can only be deployed on the higher frequency range, for example, 3GHz with frequency range on seek.
But shared frequency range is high more, and it is fast more that radio wave propagation is decayed, and transmission range is short more; Therefore, under same overlay area, guarantee continuous covering; Need to build more base station, and because the base station has higher cost usually, this can increase the network design cost undoubtedly.
In order to solve network design cost and covering problem, each manufacturer and standardization body begin one's study RN (Relay Node, via node) are incorporated in the cellular system, increase to cover.
As shown in Figure 1; Sketch map for the network architecture behind existing LTE-introducing RN of A system; RN is linked into core net through the DonorCell (alms giver sub-district) under the DeNB (Donor evolved Node B, the B node of alms giver's evolution, i.e. donor base station); Do not have direct wireline interface with core net, each RN can control one or more sub-districts.Under this framework, the interface between UE (User Equipment, subscriber equipment) and the RN is called the Uu interface, and the interface between RN and the DeNB is called the Un interface.
In the network architecture shown in Figure 1, RN has dual identity:
(1) at first, for each entity of network side, RN has the identity of UE, and RN is similar to the start attaching process of UE when starting.RN has SGW/PGW (Serving Gateway/Packet Data Network Gateway, gateway/packet data gateway) and the Control Node MME (Mobility Management Entity, Mobility Management Entity) of oneself.
(2) secondly, for the UE that inserts RN, RN has the identity of eNB, and at this moment, the downlink data of UE need send to the serving BS of UE from the SGW/PGW of UE, i.e. RN, and RN issues UE on the Uu mouth then.
As shown in Figure 2, be the schematic flow sheet of RN start-up course of the prior art, accordingly being described below of RN start-up course:
Setting up RRC (Radio Resource Control, Radio Resource control) between step S201, RN and the DeNB connects.
Step S202, RN send attach request to MME.
Step S203, MME locate to obtain Ciphering Key from HSS (Home Subscriber Server, home subscriber server), and RN is carried out authentication.
If step S204 authentication is passed through, MME sets up default bearing for RN in S-GW/P-GW.
Step S205, MME send initial context to DeNB and set up request message, in DeNB, set up the Access Layer context of RN.
Step S206, DeNB send RRC to RN and connect reconfiguration message, carry MME and issue adhering to of RN and accept message, and RN returns RRC and connects to reshuffle to accomplish and confirm.
Like this, RN has set up basic IP connection.
Step S207, OAM (Operation and Maintenance, operation and maintenance system) download to RN with node configuration information, and RN is configured.
Step S208, RN set up necessary S1 interface and X2 interface.
Accomplish above-mentioned handling well, RN just can be as the base station operate as normal.
In the prior art, when an eNB and MME have communication requirement, the S1 interface need set up each other.As shown in Figure 3, for setting up the schematic flow sheet of S1 interface between eNB in the prior art and the MME, specifically may further comprise the steps:
Step S301, eNB send S1 to MME and set up request message (S1 Setup Request).
Comprise information such as eNB title, Tracking Area Code TAC, PLMN ID in this message.
After step S302, MME receive that S1 sets up request message; Preserve these information of eNB; Then oneself information such as title, GUMMEI (Globally Unique MME Identifier, global unique MME identifier), capacity being placed on S1 sets up in the response message (S1Setup Response) notice and gives eNB.
ENB receives these information of back preservation.
Through above process, mutual application layer configuration data between eNB and the MME.
When an eNB need upgrade the configuration of S1 Application of Interface, the TA (Tracking Area, tracing area) such as increase and decrease or modification support then need carry out eNB config update process, and the schematic flow sheet of this process is as shown in Figure 4, comprising:
Step S401, eNB send eNB configuration update message (eNB Configuration Update) to MME.
The information such as TA that comprise increase and decrease in this message.
If step S402 MME can accept current renewal, then upgrade the S1 interface configuration information of the eNB that oneself stores, and return eNB config update acknowledge message (eNB Configuration Update Acknowledge) to eNB.
In the process that realizes the embodiment of the invention, the applicant finds that there is following problem at least in prior art:
In existing E-UTRAN (Evolved Universal Terrestrial Radio Access Network, the universal land radio access web of evolution) network, not all eNB supports RN, and promptly not all base station all is DeNB.Equally, in a MME Pool (MME pond), MME that also might not be all supports RN.
Because RN is disposed by operator, operator is deployed in the good position of signal that receives DeNB with RN probably when the network planning so, like this, when the sub-district is selected in the RN start, selects the probability of DeNB just bigger.DeNB might choose the MME that does not support RN when selecting MME for RN (this moment, RN still was the identity of UE), also might select to support the MME of RN.
If selected not support the MME of RN, RN set up and OAM between carrying and download finish behind the corresponding configuration data, need reselect DeNB and/or support the MME of RN.But if the MME that DeNB selects supports RN, so, MME can select the SGW/PGW of DeNB as RN, and sets up corresponding core net carrying.
If select SGW/PGW according to existing node choice mechanism, MME maybe not can choose DeNB so, and so, RN is follow-up also need to nullify registration foundation carrying again to network again.Like this, RN start-up course more complicated has been introduced some unnecessary signaling interaction and bearer management process.
Summary of the invention
The embodiment of the invention provides a kind of definite method and apparatus of gateway node, solves in existing LTE-A system, and MME can not guarantee to select the problem of DeNB as its gateway node for RN.
For achieving the above object, the embodiment of the invention provides a kind of definite method of gateway node on the one hand, comprising:
The type of the entity that mobile management entity MME identification request inserts;
If the entity that described request inserts is via node RN, said MME discerns the type of the access sub-district that said RN belongs to;
If the access sub-district that said RN belonged to is alms giver sub-district Donor Cell, said MME confirms as the current base station that belongs to of said RN the gateway node of said RN.
On the other hand, the embodiment of the invention also provides a kind of MME, comprising:
The Entity recognition module is used to discern the type of the entity that request inserts;
Cell identification module is used for when the entity that said Entity recognition module identification described request inserts is RN, discerns the type of the access sub-district that said RN belongs to;
Determination module is used for when said cell identification module is discerned access sub-district that said RN belongs to and is Donor Cell, the current base station that belongs to of said RN being confirmed as the gateway node of said RN.
On the other hand, the embodiment of the invention also provides a kind of definite method of gateway node, comprising:
DeNB sends the message that comprises self pairing cell type information to MME, so that said MME confirms gateway node according to said cell type information for the RN that request inserts when satisfying preset transmission condition.
On the other hand, the embodiment of the invention also provides a kind of base station, and said base station has the gateway function of RN at least, and said base station comprises:
Module is set, is used to be provided with the transmission condition of cell type information;
Sending module; Be used for satisfy said when the set transmission condition of module is set; Send the message that comprises the pairing cell type information in said base station self to MME, so that said MME confirms gateway node according to said cell type information for the RN that request inserts.
Compared with prior art, the embodiment of the invention has the following advantages:
Through using the technical scheme of the embodiment of the invention; Can, RN directly select the gateway node of the DeNB of the current ownership of RN when inserting the MME that supports RN through Donor Cell as RN by MME, thereby; Can simplify the startup flow process of RN; Shortened the start-up time of RN, and when having reduced RN and being assigned to the gateway node of non-DeNB, the signaling process and the bearer management process of issuable cancellation and registration again.
Description of drawings
Fig. 1 is the sketch map of the network architecture behind existing LTE-introducing RN of A system;
Fig. 2 is the schematic flow sheet of RN start-up course of the prior art;
Fig. 3 is for setting up the schematic flow sheet of S1 interface between eNB in the prior art and the MME;
Fig. 4 is the schematic flow sheet of eNB config update process between eNB and the MME in the prior art;
Fig. 5 is the schematic flow sheet of definite method of a kind of gateway node of embodiment of the invention proposition;
Definite method of a kind of gateway node that Fig. 6 proposes for the embodiment of the invention is at the schematic flow sheet of DeNB side;
Fig. 7 is the schematic flow sheet of definite method of the gateway node under a kind of concrete application scenarios that the embodiment of the invention proposed;
Fig. 8 is the schematic flow sheet of definite method of the gateway node under the another kind of concrete application scenarios that the embodiment of the invention proposed;
Fig. 9 is the schematic flow sheet of definite method of the gateway node under the another kind of concrete application scenarios that the embodiment of the invention proposed;
Figure 10 is the structural representation of a kind of MME of embodiment of the invention proposition;
Figure 11 is the structural representation of a kind of base station of embodiment of the invention proposition.
Embodiment
Of background technology, in the LTE-A system,, introduced RN in order to increase network coverage.But the eNB (DeNB) that only possesses the gateway function of RN could be as the gateway node of RN, and can not discern the gateway function whether eNB has RN in the existing network node choice mechanism, therefore; MME may confirm as the common eNB of the gateway function that does not have RN the gateway node of RN, and in such cases, RN need nullify this gateway node; The new registration of laying equal stress on, until the eNB that is assigned to gateway function (DeNB) with RN as gateway node, in this process; Nullify the hour of log-on that has not only prolonged RN with the process of registration again; And long-living a large amount of unnecessary signaling interaction and loading establishing process have been wasted valuable Internet resources.
In order to solve the above problems; The type that the embodiment of the invention has provided a kind of entity that inserts according to request and the type that inserts the sub-district are confirmed the technical scheme of gateway node; The major technique thought of this technical scheme is: MME is according to different access entities and insert cell type selection different gateways node; If insert entity and be RN and it inserts core net through Donor Cell, then MME selects the gateway node of the DeNB of the current ownership of RN as RN.
In concrete application scenarios, the entity that request inserts can comprise types such as UE, RN, inserts cell type and then comprises macrocell and Donor Cell etc., and the type of confirmable gateway node comprises SGW, PGW, and DeNB.
It is pointed out that in the present technique scheme in order to realize entity type and the identification that inserts cell type, MME also need support RN except having existing capability.
As shown in Figure 5, the schematic flow sheet for definite method of a kind of gateway node that the embodiment of the invention proposed specifically may further comprise the steps:
The type of the entity that step S501, MME identification request insert.
In concrete application scenarios, the concrete RM of this step comprises following two kinds:
Mode one, MME discern the type of the entity of this request access according to the CAMEL-Subscription-Information of entity in HSS (Home Subscriber Server, home subscriber server) that request inserts.
During access request that MME sends according to the base station, knowing has entity to insert, and obtains the CAMEL-Subscription-Information of this entity according to the information of this entity to HSS, according to CAMEL-Subscription-Information, discerns the type of this entity, judges whether this entity is RN.
The type information of the entity that mode two, MME insert according to the request of being stored among other MME, the type of the entity that the identification request inserts.
The prerequisite that realizes this mode be the entity that inserts of request before request inserts this MME, in other MME, carried out registration, then because processing such as shutdown or cancellation and need this MME being inserted as a new MME.
At this moment, if the entity that this MME request of recognizing inserts before carried out registration at other MME, and can confirm the information of previous other MME that register of this entity; So; This MME will mainly be MMcontext (Mobility Management context, a mobile management context) to some contextual informations of previous other these entities of MME request registered of this entity; And discern the type of this entity in view of the above, judge whether this entity is RN.
In concrete application scenarios, specifically use which kind of above-mentioned mode and can adjust according to actual needs.
Through above processing mode, MME accomplishes the identifying of the type of this entity of asking access:
If the entity that this request of MME identification inserts is RN, then execution in step S502;
If the entity that this request of MME identification inserts is not RN, then carry out confirming of gateway node according to existing technical scheme.
The type of step S502, the MME identification access sub-district that RN belonged to.
In concrete application scenarios, the concrete RM of this step also comprises following two kinds:
Mode one, MME judge whether comprise in the initial user equipment message that base station that RN belongs to sends that present access subzone is that sign or the current base station of Donor Cell is the sign of DeNB; If comprise, the MME identification access sub-district that RN belonged to is Donor Cell.
In this mode; Comprised the identifying information that inserts cell type in the initial user equipment message that RN sends the current base station that belongs to; This identifying information can be the identification information of base station type; It also can be the tabulation of the cell type under this base station; Consider that the topmost recognition objective of MME is to discern whether the type that inserts the sub-district is Donor Cell, so can further corresponding recognition objective be confirmed as sign or the current base station that present access subzone is Donor Cell is the sign of DeNB.
Wherein, Present access subzone is that the sign of Donor Cell can be the concrete indication information of present access subzone yes or no Donor Cell; It also can be the tabulation of all Donor Cell under this base station; MME judges in view of the above whether present access subzone belongs to this tabulation, if belong to, then present access subzone is Donor Cell.
Current base station is that the sign of DeNB then is the concrete indication information of current base station yes or no DeNB, if current base station is DeNB, think that then all sub-districts under this base station all are Donor Cell, and present access subzone is one of them.
In concrete application scenarios, the concrete form of cell type information comprises the information of following one or more types:
The type information of base station, base station are the information list of the sign of DeNB and each the Donor Cell under the base station.
Mode two, MME judge whether comprise in the cell type information of current storage that present access subzone is that sign or the current base station of Donor Cell is the sign of DeNB, if comprise, the MME identification access sub-district that RN belonged to is Donor Cell.
In this mode, MME need get access to cell type information in advance and preserve in this locality, and concrete obtain manner comprises following two kinds:
(1) MME receives the S1 that comprises cell type information that sends each base station and sets up request message.
In such cases, each base station need report the cell type information of each sub-district under current this base station setting up of S1 interface in the process, and this information is carried in the S1 foundation request and sends to MME.
(2) MME receives the base station configuration updating information that comprises cell type information that send through the S1 interface each base station.
In such cases, when the configuration information in the base station took place to upgrade, this base station was carried at current cell type information through the S1 interface and sends to MME in the base station configuration updating information.
In two kinds of above situation, the concrete form of cell type information is similar to the cell type information in the aforesaid mode one, in this no longer repeat specification.
In practical application, above-mentioned dual mode can use separately, also can make up use; Promptly set up in the process at the S1 interface, the base station has reported cell type information to MME, and after this; If the configuration information of base station upgrades; Then the base station continues to report current cell type information through the S1 interface, and to guarantee the accuracy of the cell type information among the MME, such variation can't influence protection scope of the present invention.
Through above-mentioned processing, MME accomplishes the identifying of the type of the access sub-district that RN belonged to:
If the access sub-district that RN belonged to is Donor Cell, execution in step S503 then;
If the access sub-district that RN belonged to is not Donor Cell, then carry out confirming of gateway node according to existing technical scheme.
Step S503, MME confirm as the current base station that belongs to of RN the gateway node of RN.
Need further be pointed out that; In the application scenarios of reality, can set all base stations and all report above-mentioned cell type information to MME, also can only set DeNB and report the cell type information of self; Other common eNB does not then carry out reporting of cell type information; After handling like this,, confirm that then pairing sub-district, this base station is not Donor Cell if MME does not get access to the cell type information of a base station.Concrete application can't influence above-mentioned which kind of setting protection scope of the present invention.
Said process is the realization flow of definite method of a kind of gateway node that the embodiment of the invention proposed in the MME side; Below; The embodiment of the invention has further provided the realization flow of a kind of definite method of gateway node in base station side; Its schematic flow sheet is as shown in Figure 6, specifically may further comprise the steps:
Step S601, DeNB judge the current preset transmission condition that whether satisfies.
If satisfy, then execution in step S602;
If do not satisfy, then return step S601.
Step S602, DeNB send the message that comprises self pairing cell type information to MME, so that MME confirms gateway node according to cell type information for the RN that request inserts.
Different according to the transmission condition that sets, the implementation procedure of this step specifically comprises following several kinds:
When entity requests inserted MME, DeNB sent the initial user equipment message that comprises cell type information to MME.
When the DeNB request was set up the S1 interface with MME, DeNB sent the S1 that comprises cell type information to MME and sets up request message.
When the configuration information of DeNB self took place to upgrade, DeNB sent the base station configuration updating information that comprises cell type information through the S1 interface to MME.
Wherein, the concrete form of cell type information is referring to above stated specification, at this repeated description no longer.
Compared with prior art, the embodiment of the invention has the following advantages:
Through using the technical scheme of the embodiment of the invention; Can, RN directly select the gateway node of the DeNB of the current ownership of RN when inserting the MME that supports RN through Donor Cell as RN by MME, thereby; Can simplify the startup flow process of RN; Shortened the start-up time of RN, and when having reduced RN and being assigned to the gateway node of non-DeNB, the signaling process and the bearer management process of issuable cancellation and registration again.
Below, the application scenarios in conjunction with concrete describes the technical scheme that the embodiment of the invention proposed.
As shown in Figure 7; Schematic flow sheet for definite method of the gateway node under a kind of concrete application scenarios that the embodiment of the invention proposed; In this technical scheme; DeNB is in the process that network entity inserts, with the information notice MME of the gateway function that self possesses RN, this method specifically may further comprise the steps:
Step S701, RN start are set up RRC with DeNB and are connected, and send Attach Request message to network.
If RN selects at this moment is the eNB of the common gateway function that does not possess RN; Then need handle according to prior art; This kind situation is no longer repeat specification in the present embodiment, directly suppose in the present embodiment RN selected be a DeNB with gateway function of RN.
Step S702, DeNB increase corresponding indication in the Initial UE message (initial UE message) that sends to MME, notice MME oneself is DeNB.
The method of DeNB notice MME specifically comprises:
(1) if all sub-districts under the DeNB can be as Donor Cell, DeNB increases the indication of " oneself being DeNB " in initial UE message so.
(2) if the sub-district under the DeNB is the part sub-district is Donor Cell, whether DeNB can be the indication of Donor Cell for the current service cell increase of carrying in the initial UE message so.
Such as; Increase an attribute " Donor " among the IE of Cell Access Mode in initial UE message at present; When inserting in Donor Cell for UE or RN, this IE of DeNB is set to " Donor ", and is concrete; The form signal of initial UE message is referring to table 1, and the form sketch map of the IE of the Cell Access Mode in the amended initial UE message is as shown in table 2.
Table 1: initial UE message
The settings of table 2:Cell Access Mode IE
In the prior art, carried the cell ID of RN or the current connection of UE in the initial UE message.
Step S703～step S705, for carrying out the process of safety certification between network and the RN, if authentication is passed through, MME belongs to existing technical scheme from the such process of information such as subscription data that HSS obtains RN, is not described in detail in this.
Step S706, MME judge the cell type that inserts entity type and access, and are RN when inserting through Donor Cell request confirming current, select the SGW/PGW of the DeNB of the current ownership of RN as RN; Otherwise, inserting if not RN, or current access sub-district is not DonorCell that then MME carries out existing SGW/PGW choice mechanism.
It is pointed out that the MME here need support RN, this will be as the unified prerequisite of subsequent implementation example of the present invention, follow-up no longer repeat specification.
In this step, MME possibly learn whether the entity of access is RN from the subscription data that HSS obtains, or knows the type of this entity from other MME of the registered mistake of this entity.
On the other hand, MME knows that whether the current access sub-district of this entity is that the method for Donor Cell then comprises following two kinds:
If carried the indication of " base station is DeNB " in the initial UE message that method one is received, then MME thinks that all sub-districts all are Donor Cell under this base station.
Whether the attribute of the present access subzone in method two, the MME inspection initial UE message is DonorCell.
Need further be pointed out that; Can there be precedence relationship between the identifying of above-mentioned entity type and access cell type; If confirm that in the process of entity type identification the entity that inserts is not RN, then MME can no longer proceed to insert the identification of cell type, even because the access sub-district is Donor Cell; MME can not be RN and can directly current DeNB not confirmed as the gateway node of this access entity because of inserting entity yet; In such cases, if saved the identifying that inserts cell type, further conserve network resources and processing time accordingly.
In the present embodiment,, confirm that then DeNB is the gateway node of this RN, and continue execution in step S707, carry out subsequent treatment if MME confirms that the current RN of being inserts through Donor Cell request among the step S706.
Step S707, MME send establishment conversation request (Create Session Request) to DeNB on the S11 interface, be that RN creates the EPS carrying in DeNB.
After step S708, DeNB accept the request of MME, carry, and return establishment conversational response message to MME for RN creates EPS.
Step S709, MME send initial context to DeNB and set up request (Initial Context SetupRequest), in DeNB, create the Access Layer context for RN.
Step S710, DeNB send RRC to RN and connect reallocation message, carry MME and issue adhering to of RN and accept message.
Step S711, RN carry out the RRC connection to DeNB and reshuffle affirmation.
Step S712, DeNB carry out initial context to MME and set up affirmation.
As shown in Figure 8; Schematic flow sheet for definite method of the gateway node under the embodiment of the invention proposed the another kind of concrete application scenarios; In this technical scheme; DeNB is setting up in the process of S1 interface with MME, with the information of the gateway function that self possesses RN notice MME, this method specifically may further comprise the steps:
Step S801, DeNB set up in the request message gateway function that notice MME oneself possesses RN at S1 when setting up the S1 interface with MME.
The method of notice can comprise following three kinds:
Method one, DeNB increase Donor Cell list information in S1 Setup Request (the S1 interface is set up request), specifically as shown in table 3:
Table 3:S1 sets up request message
Wherein, the information among the IE of Donor Cell List is the pairing Donor Cell of DeNB list information, through such mode, is carried among the S1 Setup Request and sends to MME.
Moreover; In S1 Setup Request, also carried the IE of ECGI; Information wherein is ECGI (the E-UTRAN Cell Global Identifier of present access subzone; E-UTRAN Cell Global Identifier) information, in view of the above, whether MME can inquire about present access subzone in Donor Cell list be Donor Cell.
Mode two, in S1 Setup Request, increase " base station type ", it is set to " DeNB " DeNB, and concrete example is referring to table 4:
Table 4:S1 sets up request message
Wherein, the information among the IE of eNB Type is the type information of DeNB, and through such mode, DeNB can directly inform that through S1 Setup Request MME is certainly as DeNB.
Mode three, DeNB represent DeNB through the eNB name IE among the S1 Setup Request with special numerical value.
At present, eNB name adopts the numeral between 1 to 150, can reserve some numeral (such as 150) and represent the DeNB type.
Step S802, MME receive the information that storage base station, back reports.
Step S803, RN start are set up RRC with DeNB and are connected, and send Attach Request message to network.
Step S804, DeNB send Initial UE message to MME.
In this step, need not in Initial UE message, to increase again indication, carry out the notice of DeNB type.
In the prior art, carried the cell ID of RN or the current connection of UE in the initial UE message.
Step S805～step S807, with abovementioned steps S703～step S705 is identical, in this no longer repeat specification.
Step S808, MME judge the cell type that inserts entity type and access, and are RN when inserting through Donor Cell request confirming current, select the SGW/PGW of the DeNB of the current ownership of RN as RN; Otherwise, inserting if not RN, or current access sub-district is not DonorCell that then MME carries out existing SGW/PGW choice mechanism.
In this step, MME possibly learn whether the entity of access is RN from the subscription data that HSS obtains, or knows the type of this entity from other MME of the registered mistake of this entity.
On the other hand, MME knows that whether the current access sub-district of this entity is that the method for Donor Cell is specially:
The information of the current base station of having stored when utilizing the S1 interface to set up, whether the inquiry current base station is DeNB, or whether according to the ECGI of sub-district, the current place of the RN of from the initial UE message of receiving, knowing, inquiring about this sub-district is Donor Cell.
In the present embodiment,, confirm that then DeNB is the gateway node of this RN, and continue execution in step S707, carry out subsequent treatment if MME confirms that the current RN of being inserts through the DonorCell request among the step S808.
Step S809～step S814, with abovementioned steps S707～step S712 is identical, in this no longer repeat specification.
As shown in Figure 9; Schematic flow sheet for definite method of the gateway node under the embodiment of the invention proposed the another kind of concrete application scenarios; In this technical scheme; DeNB is when the configuration information of self take place to upgrade, and through S1 interface notice MME, this method specifically may further comprise the steps with the information of self current gateway function that possesses RN:
Step S901, when DeNB need upgrade the S1 interface configuration data, when being upgraded to the DeNB that supports RN such as eNB, notice MME oneself possesses the gateway function of RN in the eNB configuration update message.
The method of notice can comprise following three kinds:
Method one, DeNB increase Donor Cell list information in the eNB configuration update message, specifically as shown in table 5:
Table 5:eNB configuration update message
Wherein, the information among the IE of Donor Cell List is the pairing Donor Cell of DeNB list information, through such mode, is carried in the eNB configuration update message and sends to MME.
Moreover, in the eNB configuration update message, also carried the IE of ECGI, information wherein is the ECGI information of present access subzone, and in view of the above, whether MME can inquire about present access subzone in Donor Cell list be Donor Cell.
Mode two, in the eNB configuration update message, increase " base station type ", it is set to " DeNB " DeNB, and concrete example is referring to table 6:
Table 6:eNB configuration update message
Wherein, the information among the IE of eNB Type is the type information of DeNB, and through such mode, DeNB can directly inform that through the eNB configuration update message MME is certainly as DeNB.
Mode three, DeNB are through the eNB name IE in the eNB configuration update message, and particular value is represented DeNB.
At present, eNB name adopts the numeral between 1 to 150, can reserve some numeral (such as 150) and represent the DeNB type.
Step S902～step S914, with abovementioned steps S802～step S814 is identical, in this no longer repeat specification.
What need further explanation is that in practical application, the method that is proposed among step S801 and the step S901 can be used separately; Also can make up use, promptly set up in the process at the S1 interface, the base station has reported cell type information to MME; And after this, if the configuration information of base station upgrades, then the base station continues to report current cell type information through S 1 interface; To guarantee the accuracy of the cell type information among the MME, such variation can't influence protection scope of the present invention.
Compared with prior art, the embodiment of the invention has the following advantages:
Through using the technical scheme of the embodiment of the invention; Can, RN directly select the gateway node of the DeNB of the current ownership of RN when inserting the MME that supports RN through Donor Cell as RN by MME, thereby; Can simplify the startup flow process of RN; Shortened the start-up time of RN, and when having reduced RN and being assigned to the gateway node of non-DeNB, the signaling process and the bearer management process of issuable cancellation and registration again.
In order to realize the technical scheme of the embodiment of the invention, the embodiment of the invention has also proposed a kind of MME, and its structural representation is shown in figure 10, specifically comprises:
In concrete application scenarios, Entity recognition module 101 specifically is used for:
The type of the entity that the CAMEL-Subscription-Information identification request of entity in HSS that inserts according to request inserts; Or,
The type information of the entity that inserts according to the request of being stored among other MME, the type of the entity that the identification request inserts.
In concrete application scenarios, cell identification module 102 specifically is used for:
Judge whether comprise in the initial user equipment message that base station that RN belongs to sends that present access subzone is that sign or the current base station of Donor Cell is the sign of DeNB, if comprise, the identification access sub-district that RN belonged to is Donor Cell; Or,
Judge whether comprise in the cell type information of current storage that present access subzone is that sign or the current base station of Donor Cell is the sign of DeNB, if comprise, the identification access sub-district that RN belonged to is Donor Cell.
Further, this MME also comprises:
In concrete application scenarios, the concrete form of cell type information comprises the information of following one or more types:
The type information of base station, base station are the information list of the sign of DeNB and each the Donor Cell under the base station.
On the other hand, the embodiment of the invention also provides a kind of base station, and this base station has the gateway function of RN at least, and its structural representation is shown in figure 11, comprising:
Need to prove, the transmission condition of the set cell type information of module 111 is set, specifically comprise one or more of following mode:
When entity requests inserts MME, send cell type information; Or,
When setting up the S1 interface, send cell type information; Or,
When the configuration information update of this base station, send cell type information.
Sending module 112 is used for sending the message that comprises the pairing cell type information in this base station self to MME, so that MME confirms gateway node according to cell type information for the RN that request inserts satisfying when the set transmission condition of module 111 is set.
In concrete application scenarios, sending module 112 specifically is used for:
When entity requests inserted MME, the initial user equipment message that comprises cell type information was sent in this base station to MME; Or,
When this base station requests and MME set up the S1 interface, this base station was sent the S1 that comprises cell type information to MME and is set up request message; Or,
When the configuration information of this base station self took place to upgrade, the base station configuration updating information that comprises cell type information was sent through the S1 interface in this base station to MME;
In concrete application scenarios, the concrete form of cell type information comprises the information of following one or more types:
The type information of base station, base station are the information list of the sign of DeNB and each the Donor Cell under the base station.
Compared with prior art, the embodiment of the invention has the following advantages:
Through using the technical scheme of the embodiment of the invention; Can, RN directly select the gateway node of the DeNB of the current ownership of RN when inserting the MME that supports RN through Donor Cell as RN by MME, thereby; Can simplify the startup flow process of RN; Shortened the start-up time of RN, and when having reduced RN and being assigned to the gateway node of non-DeNB, the signaling process and the bearer management process of issuable cancellation and registration again.
Through the description of above execution mode, those skilled in the art can be well understood to the embodiment of the invention and can realize through hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding; The technical scheme of the embodiment of the invention can be come out with the embodied of software product, this software product can be stored in a non-volatile memory medium (can be CD-ROM, USB flash disk; Portable hard drive etc.) in; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) each implements the described method of scene to carry out the embodiment of the invention.
It will be appreciated by those skilled in the art that accompanying drawing is a preferred sketch map of implementing scene, module in the accompanying drawing or flow process might not be that embodiment of the present invention embodiment is necessary.
It will be appreciated by those skilled in the art that the module in the device of implementing in the scene can be distributed in the device of implementing scene according to implementing scene description, also can carry out respective change and be arranged in the one or more devices that are different from this enforcement scene.The module of above-mentioned enforcement scene can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of implementing scene just to description.
More than the disclosed several practical implementation scenes that are merely the embodiment of the invention, still, the embodiment of the invention is not limited thereto, any those skilled in the art can think variation all should fall into the traffic limits scope of the embodiment of the invention.
Claims (16)
1. definite method of a gateway node is characterized in that, comprising:
The type of the entity that mobile management entity MME identification request inserts;
If the entity that described request inserts is via node RN, said MME discerns the type of the access sub-district that said RN belongs to;
If the access sub-district that said RN belonged to is alms giver sub-district Donor Cell, said MME confirms as the current base station that belongs to of said RN the gateway node of said RN.
2. the method for claim 1 is characterized in that, the type of the entity that said MME identification request inserts is specially:
The type of the entity that the CAMEL-Subscription-Information identification described request of entity in home subscriber server HSS that said MME inserts according to described request inserts; Or,
Said MME is according to the type information of the entity of the described request access of being stored among other MME, the type of the entity that the identification described request inserts.
3. method as claimed in claim 2 is characterized in that, said MME is according to the type information of the entity of the described request access of being stored among other MME, and the type of the entity that the identification described request inserts is specially:
Other MME of the registered mistake of entity that said MME identification described request inserts;
Said MME obtains the type information of the entity of described request access to said other MME.
4. the method for claim 1 is characterized in that, if the entity that described request inserts is RN, said MME discerns the type of the access sub-district that said RN belongs to, and specifically comprises:
Said MME judges whether comprise in the initial user equipment message that base station that said RN belongs to sends that present access subzone is that sign or the current base station of Donor Cell is the sign of donor base station DeNB; If comprise, it is Donor Cell that said MME discerns the access sub-district that said RN belongs to; Or,
Said MME judges whether comprise in the cell type information of current storage that present access subzone is that sign or the current base station of Donor Cell is the sign of DeNB, if comprise, it is Donor Cell that said MME discerns the access sub-district that said RN belongs to.
5. method as claimed in claim 4 is characterized in that, the cell type information of storing among the said MME specifically obtains in the following manner:
Said MME receives the S1 that comprises cell type information that sends each base station and sets up request message; Or,
Said MME receives the base station configuration updating information that comprises cell type information that send through the S1 interface each base station.
6. method as claimed in claim 5 is characterized in that, said cell type information specifically comprises:
The type information of said base station; And/or,
Said base station is the sign of DeNB; And/or,
The information list of each Donor Cell under the said base station.
7. a MME is characterized in that, comprising:
The Entity recognition module is used to discern the type of the entity that request inserts;
Cell identification module is used for when the entity that said Entity recognition module identification described request inserts is RN, discerns the type of the access sub-district that said RN belongs to;
Determination module is used for when said cell identification module is discerned access sub-district that said RN belongs to and is Donor Cell, the current base station that belongs to of said RN being confirmed as the gateway node of said RN.
8. MME as claimed in claim 7 is characterized in that, said Entity recognition module specifically is used for:
The type of the entity that the CAMEL-Subscription-Information identification described request of entity in HSS that inserts according to described request inserts; Or,
The type information of the entity that inserts according to the described request of being stored among other MME, the type of the entity that the identification described request inserts.
9. MME as claimed in claim 8 is characterized in that, said cell identification module specifically is used for:
Judge whether comprise in the initial user equipment message that base station that said RN belongs to sends that present access subzone is that sign or the current base station of Donor Cell is the sign of DeNB, if comprise, discerning the access sub-district that said RN belongs to is Donor Cell; Or,
Judge whether comprise in the cell type information of current storage that present access subzone is that sign or the current base station of Donor Cell is the sign of DeNB, if comprise, discerning the access sub-district that said RN belongs to is Donor Cell.
10. MME as claimed in claim 9 is characterized in that, also comprises:
Receiver module is used to receive the S1 that comprises cell type information that sends each base station and sets up request message; Or receive the base station configuration updating information that comprises cell type information that send through the S1 interface each base station;
Memory module is used to store the received cell type information of said receiver module;
Wherein, said cell type information specifically comprises:
The type information of said base station; And/or,
Said base station is the sign of DeNB; And/or,
The information list of each Donor Cell under the said base station.
11. definite method of a gateway node is characterized in that, comprising:
DeNB sends the message that comprises self pairing cell type information to MME, so that said MME confirms gateway node according to said cell type information for the RN that request inserts when satisfying preset transmission condition.
12. method as claimed in claim 11 is characterized in that, said DeNB sends the message that comprises self pairing cell type information to MME when satisfying preset transmission condition, specifically comprise:
When entity requests inserted said MME, said DeNB sent the initial user equipment message that comprises cell type information to said MME; Or,
When said DeNB request was set up the S1 interface with said MME, said DeNB sent the S1 that comprises cell type information to said MME and sets up request message; Or,
When the configuration information of said DeNB self took place to upgrade, said DeNB sent the base station configuration updating information that comprises cell type information through the S1 interface to said MME.
13. method as claimed in claim 12 is characterized in that, said cell type information specifically comprises:
The type information of said DeNB; And/or,
Said DeNB is the sign of DeNB; And/or,
The information list of each Donor Cell under the said DeNB.
14. a base station is characterized in that said base station has the gateway function of RN at least, said base station comprises:
Module is set, is used to be provided with the transmission condition of cell type information;
Sending module; Be used for satisfy said when the set transmission condition of module is set; Send the message that comprises the pairing cell type information in said base station self to MME, so that said MME confirms gateway node according to said cell type information for the RN that request inserts.
15. base station as claimed in claim 14 is characterized in that, the said transmission condition that the set cell type information of module is set specifically comprises:
When entity requests inserts MME, send cell type information; Or,
When setting up the S1 interface, send cell type information; Or,
When the configuration information update of said base station, send cell type information.
16. base station as claimed in claim 15 is characterized in that, said sending module specifically is used for:
When entity requests inserted said MME, the initial user equipment message that comprises cell type information was sent in said base station to said MME; Or,
When said base station requests and said MME set up the S1 interface, said base station was sent the S1 that comprises cell type information to said MME and is set up request message; Or,
When the configuration information of said base station self took place to upgrade, the base station configuration updating information that comprises cell type information was sent through the S1 interface in said base station to said MME;
Wherein, said cell type information specifically comprises:
The type information of said base station; And/or,
Said base station is the sign of DeNB; And/or,
The information list of each Donor Cell under the said base station.
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| DE102022124502A1 (en) | 2022-09-23 | 2024-03-28 | Deutsche Telekom Ag | EASY AND SAFE SET-UP OF A MOBILE MOBILE RADIO STATION |
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