CN102404823A - Method and system of accessing identification ultimate in nodes - Google Patents
Method and system of accessing identification ultimate in nodes Download PDFInfo
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- CN102404823A CN102404823A CN2010102853477A CN201010285347A CN102404823A CN 102404823 A CN102404823 A CN 102404823A CN 2010102853477 A CN2010102853477 A CN 2010102853477A CN 201010285347 A CN201010285347 A CN 201010285347A CN 102404823 A CN102404823 A CN 102404823A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W8/26—Network addressing or numbering for mobility support
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
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- H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations
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Abstract
The invention discloses a method of accessing identification ultimate in nodes, which allocates inner identification and outer identification for accessing the ultimate in the nodes and includes the inner identification allocated for accessing the ultimate in the nodes is utilized to be interacted with superior access nodes, and the outer identification allocated for accessing the ultimate in the nodes is utilized to be interacted with network nodes except the superior assess nodes. A system of accessing the identification ultimate in the nodes is further disclosed. The system comprises an allocation unit and an interaction unit, wherein the allocation unit is used for allocating the inner identification and the outer identification for accessing the ultimate in the nodes, and the interaction unit is used for utilizing the inner identification allocated for accessing the ultimate in the nodes to be interacted with network nodes of the superior access nodes and utilizing the outer identification allocated for accessing the ultimate in the nodes to be interacted with the network nodes except the superior assess nodes. The method and the system of accessing the identification ultimate in the nodes can solve the addressing problem in the S1 conversion process when a target base station is RN, and can solve the problem of ambiguous base station identification when RN builds S1 connection between RN and DeNB.
Description
Technical field
The present invention relates to the identification technology of ultimate access node, relate in particular to a kind of method and system that identify ultimate access node.
Background technology
Fig. 1 is the configuration diagram of E-UTRAN system; As shown in Figure 1; 3G (Third Generation) Moblie Long Term Evolution (LTE, Long Term Evolution) system is by universal land radio access web (E-UTRAN, Evolved Universal Terrestrial Radio Access Network), the subscriber equipment (UE of evolution; User Equipment), the packet-based core networks of evolution (EPC, Evolved Packet Core) are formed.Wherein, E-UTRAN is made up of the access network elements base station eNB.ENB is connected with UE through the Uu interface, connects through S1 interface and core network element (like Mobility Management Entity (MME, Mobility Management Entity)).
In order to satisfy the demand that growing big bandwidth high-speed mobile inserts; Third generation partnership project (3GPP; Third Generation Partnership Projects) releases senior Long Term Evolution (LTE-Advanced, Long Term Evolution-Advanced) standard.LTE-Advanced has kept the core of LTE for the evolution of LTE system, adopts a series of technology that frequency domain, spatial domain are expanded on this basis, improves the availability of frequency spectrum to reach, increases purposes such as power system capacity.Wireless relay (Relay) technology promptly is one of technology among the LTE-Advanced, is intended to the coverage of Extended Cell, reduces the area, dead angle in the communication, balanced load, the business of transfer hot zones, the transmitting power of saving UE.
Fig. 2 is for the configuration diagram of the E-UTRAN system of the ultimate access node of support (RN, Relay Node), and is as shown in Figure 2, and RN is connected with UE through the Uu interface, and the function of base station is provided.In addition, RN is connected with the base station through the Un interface, and the function of subscriber equipment is provided.The base station that is connected with RN is called host base station (DeNB, Donor eNB), and the host base station is connected with core network element (like MME) through the S1 interface.RN is connected with core network element (like MME) through host base station agency (proxy) S1 interface.Thereby be implemented in the relay function that between RN and the base station, between the UE of RN and himself management, carries out transfer of data; Reach the coverage of Extended Cell, reduce the area, dead angle in the communication, balanced load; Shift the business of hot zones, save the purposes such as transmitting power at terminal.
Because RN acts on behalf of the S1 interface through the host base station and is connected with MME, so MME can't be from the information of S1 interface acquisition RN, and in other words, MME can't discern the eNB ID of RN.Causing target BS thus is the S1 switching flow failure of RN.Fig. 3 is the flow chart of the S1 handoff failure of RN for target BS, and is as shown in Figure 3, and the flow process of the S1 handoff failure of RN is specific as follows:
Source base station sends HANDOVER REQUIRED and gives MME, wherein carries the eNB ID of target BS RN.
Because MME can't discern the eNB ID of RN, therefore to feed back HANDOVER PREPARATION FAILURE and give source base station, the reason (Cause) of wherein carrying failure is " Unknown Target ID ".
In order to address the above problem, require the eNB ID of RN consistent, thereby in the S1 handoff procedure, MME is target BS that the switching that target BS is DeNB is used as in the switching of RN, and hand off signaling is dealt on the DeNB, the route success with the eNB ID of DeNB.And DeNB from and RN between the S1 interface set up continue to transmit this hand off signaling to RN, and accomplish switching flow.
But; RN will cause occurring in the S1 flow process a series of problems, for example with after the eNB ID of DeNB is consistent; In the process that the S1 of RN sets up; All RN in the DeNB jurisdiction district adopt the eNB ID consistent with DeNB, and DeNB can't distinguish and which RN set up S1 with and be connected, and cause S1 to connect and set up failure.
At target BS is in the S1 handoff procedure of RN; MME issues DeNB according to the eNB ID information that UE is relevant; But when DeNB sends to target RN in the information that UE is relevant; Because the sign of target RN is merely eNB ID, DeNB can't the information that UE is relevant send to target RN, cause handoff failure.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method and system that identify ultimate access node, can carry out unique identification to ultimate access node, and each the ultimate access node that belongs to self can accurately be determined in the host base station.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method that identifies ultimate access node is ultimate access node configuration internal indicator and outside sign; Said method also comprises:
The internal indicator and the higher level's access node that are utilized as said ultimate access node configuration carry out alternately, and the outside sign and the network node except that said higher level's access node that are utilized as said ultimate access node configuration carry out alternately.
Preferably, said is that ultimate access node configuring external sign is specially:
Higher level's access node of said ultimate access node sends system information or the dedicated signaling that carries outside sign to said ultimate access node, and said ultimate access node receives said system information or dedicated signaling, obtains and the configuring external sign;
Perhaps, said ultimate access node identifies in the outside of choosing in the outside sign more than of pre-configured or operation management maintain (OAM) system configuration, is self configuring external sign, and notifies higher level's access node of said ultimate access node.
Preferably, said is that ultimate access node configuration internal indicator is specially:
Higher level's access node of said ultimate access node sends the dedicated signaling that carries said internal indicator to said ultimate access node;
Perhaps; Said ultimate access node is after the dedicated signaling of said internal indicator is carried in higher level's access node transmission of said ultimate access node, and higher level's access node of said ultimate access node sends the dedicated signaling that indication is confirmed to said ultimate access node;
Perhaps, pre-configured or be the unique internal indicator of said ultimate access node configuration for said ultimate access node through the OAM system.
Preferably, said dedicated signaling comprise following message one of at least: RRC connection building process message, RRC connect reprovision flow process message, and S1 sets up flow process message, and X2 sets up flow process message.
Preferably; The internal indicator that carries in the said dedicated signaling is one when above; Said ultimate access node is therefrom selected an internal indicator as self at random; Perhaps, said ultimate access node is chosen an internal indicator as self that is different from other ultimate access nodes according to the internal indicator of other ultimate access nodes of received said higher level's access node, and notifies higher level's access node of said ultimate access node.
Preferably, the outside of said ultimate access node is designated the identification information of higher level's access node of said ultimate access node; The internal indicator of said ultimate access node is the sign of said ultimate access node self.
Preferably, the outside of said ultimate access node sign comprise following sign one of at least: the Location Area Code of higher level's access node of the sign of higher level's access node of said ultimate access node, the cell ID of higher level's access node of said ultimate access node, said ultimate access node.
Preferably, the internal indicator of said ultimate access node comprise following sign one of at least: the sign that is connected link between higher level's access node of the sign of said ultimate access node, the cell ID of said ultimate access node, SPID, said ultimate access node and said ultimate access node.
Preferably, said ultimate access node is RN, and said higher level's access node is DeNB;
Perhaps, said ultimate access node is HeNB, and said higher level's access node is HeNB-GW.
Preferably, said method also comprises:
Said ultimate access node is set up request message to higher level's access node transmission connection of said ultimate access node, and the internal indicator that request message carries said ultimate access node is set up in said connection.
Preferably, said method also comprises:
Source base station sends handoff request message according to the outside sign of the ultimate access node of target to higher level's access node of said ultimate access node, carries the internal indicator of said ultimate access node in the said handoff request message;
Higher level's access node of said ultimate access node is transmitted handoff request message according to the internal indicator of said ultimate access node to said ultimate access node.
A kind of system that identifies ultimate access node is applied to comprise in the communication system of ultimate access node, and said system comprises dispensing unit and interactive unit, wherein,
Dispensing unit is used to ultimate access node configuration internal indicator and outside sign;
Interactive unit; The internal indicator that is used to be utilized as said ultimate access node configuration carries out alternately with higher level's access node of said ultimate access node, and the outside that is utilized as said ultimate access node configuration identifies and the network node except that said higher level's access node carries out alternately.
Preferably, said dispensing unit is realized the configuration to the outside sign of ultimate access node in the following manner:
Higher level's access node of said ultimate access node sends system information or the dedicated signaling that carries outside sign to said ultimate access node, and said ultimate access node receives said system information or dedicated signaling, obtains and the configuring external sign; Perhaps, said ultimate access node identifies in the outside of choosing in the outside sign more than of pre-configured or OAM system configuration, is self configuring external sign, and notifies higher level's access node of said ultimate access node;
Said dispensing unit is realized the configuration to ultimate access node internal indicator in the following manner:
Higher level's access node of said ultimate access node sends the dedicated signaling that carries said internal indicator to said ultimate access node; Perhaps; Said ultimate access node is after the dedicated signaling of said internal indicator is carried in higher level's access node transmission of said ultimate access node, and higher level's access node of said ultimate access node sends the dedicated signaling that indication is confirmed to said ultimate access node; Perhaps, pre-configured or be the unique internal indicator of said ultimate access node configuration for said ultimate access node through the OAM system.
Preferably; The internal indicator that carries in the said dedicated signaling is one when above; Said ultimate access node is therefrom selected an internal indicator as self at random; Perhaps, said ultimate access node is chosen an internal indicator as self that is different from other ultimate access nodes according to the internal indicator of other ultimate access nodes of received said ultimate access node, and notifies higher level's access node of said ultimate access node.
Preferably, the outside of said ultimate access node is designated the identification information of higher level's access node of said ultimate access node; The internal indicator of said ultimate access node is the sign of said ultimate access node self;
Wherein, the outside of said ultimate access node sign comprise following sign one of at least: the Location Area Code of higher level's access node of the sign of higher level's access node of said ultimate access node, the cell ID of higher level's access node of said ultimate access node, said ultimate access node;
The internal indicator of said ultimate access node comprise following sign one of at least: the sign that is connected link between higher level's access node of the sign of said ultimate access node, the cell ID of said ultimate access node, SPID, said ultimate access node and said ultimate access node.
Preferably, said ultimate access node is a via node, and said higher level's access node is the host base station;
Perhaps, said ultimate access node is a Home eNodeB, and said higher level's access node is a femto gateway.
Among the present invention; Through being ultimate access node configuring external sign and internal indicator; Carry out when mutual at higher level's access node with this ultimate access node; Use the identification information of internal indicator, and carrying out using outside the sign when mutual with network node except that higher level's access node of this ultimate access node as ultimate access node.Like this, to the network node except that higher level's access node of this ultimate access node, concealed the existence of ultimate access node, and higher level's access node of ultimate access node can be discerned to each ultimate access node through internal indicator.Like this, in the existing network communication mode of compatibility, realized ultimate access node is inserted the support of E-UTRAN system.Concrete, the present invention both can solve the addressing issue in the S1 handoff procedure that target BS is RN, the indefinite problem of Base Station Identification in the time of can solving RN again and set up RN and S1 between the DeNB is connected.
Description of drawings
Fig. 1 is the configuration diagram of E-UTRAN system;
Fig. 2 is the configuration diagram of the E-UTRAN system of support RN;
Fig. 3 is the flow chart of the S1 handoff failure of RN for target BS;
Fig. 4 is method one sketch map of ultimate node configuration internal indicator for superior node;
Fig. 5 is the method two sketch map of ultimate node configuration internal indicator for superior node;
Fig. 6 sets up the flow chart that S1 is connected between the RN of the embodiment of the invention one and the DeNB;
Fig. 7 is S1 switching preparation process figure of RN for the target BS of the embodiment of the invention two;
Fig. 8 is X2 switching preparation process figure of RN for the target BS of the embodiment of the invention three;
Fig. 9 identifies the composition structural representation of the system of ultimate access node for the present invention.
Embodiment
Basic thought of the present invention does, ultimate access node adopts internal indicator and higher level's access node mutual, and ultimate access node adopts outside sign and the access node except that higher level's access node mutual.
Outside sign is the sign of higher level's access node, comprise following one of at least: Base Station Identification, cell ID, Location Area Code.
Among the present invention, between the method for the outside sign of node configuration comprise following one of at least:
(1) higher level's access node sends the system information (SI, System Information) or the dedicated signaling (like the RRC/S1/X2 signaling) that carry outside sign and gives ultimate access node, is ultimate access node configuring external sign;
(2) ultimate access node is designated self configuring external sign according to one or more outsides pre-configured or the OAM configuration.
Internal indicator is exactly in fact the sign of ultimate access node, comprise following identification information one of at least: the X2AP ID that the S1AP ID that the Base Station Identification of ultimate access node, the cell ID of ultimate access node, SPID, ultimate access node are connected with S1 between higher level's access node, ultimate access node are connected with X2 between higher level's access node.
The method of configuration internal indicator comprise following one of at least:
What (1) know access at higher level's access node is (core net notice or ultimate access node notice) after the ultimate access node; Higher level's access node sends the dedicated signaling (like the RRC/S1/X2 signaling) that carries internal indicator and gives ultimate access node, is ultimate access node configuration internal indicator;
(2) after receiving the configuration request message that ultimate access node sends, higher level's access node sends the dedicated signaling (like the RRC/S1/X2 signaling) that carries internal indicator and gives ultimate access node, is ultimate access node configuration internal indicator;
(3) after receiving the dedicated signaling that carries more than one internal indicator that higher level's access node sends, ultimate access node is therefrom selected the internal indicator information of one of which as self at random, and notifies the higher level access node through the upstream message feedback;
(4) in the system information of ultimate access node, carry under the situation of internal indicator; Ultimate access node receives the system information of other ultimate access nodes of higher level's access node; Thereby obtain the internal indicator of said other ultimate access nodes; Ultimate access node selects to be different from the internal indicator of said other ultimate access nodes for self, and notifies the higher level access node through the upstream message feedback;
(5) the pre-configured or unique internal indicator of OAM configuration the whole network is given ultimate access node.
The combination of ultimate access node and higher level's access node comprises: ultimate access node is RN, and higher level's access node is the host base station;
Perhaps, ultimate access node is a Home eNodeB, and higher level's access node is the gateway of Home eNodeB.
Specify the essence of technical scheme of the present invention below through a plurality of embodiment.
In following examples, higher level's access node DeNB supports two tracking areas (TA, Tracking Area): TA1 and TA2.Comprise 3 ultimate access node: RN1, RN2 and RN3 in the DeNB jurisdiction district, wherein RN1 supports TA1, and RN2, RN3 support TA2.
The internal indicator of ultimate access node is used for the reciprocal process of ultimate access node and higher level's access node, and the reciprocal process of the ultimate access node had jurisdiction over of higher level's access point of ultimate access node and ultimate access node.The outside sign of ultimate access node is used for the reciprocal process of ultimate access node and the node except that higher level's access node of this ultimate access node.
Outside sign is by higher level's access node or ultimate access node self configuration.
Higher level's access node is that the process of ultimate access node configuring external sign comprises: ultimate access node receives system information or the dedicated signaling that higher level's access node sends, and wherein carries outside sign.
For example, in the scope of the TA that RN supported, the outside of RN1 sign is the Base Station Identification (eNB ID) of DeNB and the tracking area sign indicating number of TA1 (TAC, Tracking Area Code), and the outside sign of RN2 and RN3 is the eNB ID of DeNB and the TAC of TA2.RN1~RN3 is according to system information block 1 (SIB1; System Information Block1) cell ID that carries in (Cell Identity) obtains the eNB ID (being the preceding 20bits of Cell Identity) of DeNB, obtains the TAC of DeNB according to the tracking area sign indicating number that carries among the SIB1.In addition; RN1~RN3 can also set up the eNB ID (according to the preceding 20bits of Global eNB ID cell or E-UTRAN Cell Identifier) of process (X2 SETUP REQUEST/X2SETUP RESPONSE) and/or X2 message base station configuration updating information (ENB CONFIGURATION UPDATE) acquisition DeNB according to X2, and the TAC of DeNB.
For another example, in the scope of DeNB jurisdiction district, the outside of RN1, RN2, RN3 sign is the eNB ID of DeNB.RN1~RN3 obtains the eNB ID of DeNB according to SIB1.In addition, RN1~RN3 can also set up the eNB ID of process (X2 SETUP REQUEST/X2 SETUP RESPONSE) and/or X2 message base station configuration updating information acquisition DeNB according to X2.
Ultimate access node for self configuring external label manner is:
Mode one, the corresponding relation of one or more higher level's access nodes that pre-configured ultimate access node can insert and higher level's access node and outside sign.Ultimate access node selects one of them higher level's access node to insert according to the principle of cell selecting/gravity treatment, and is configured to the outside sign of ultimate access node to corresponding outside sign.For example, outside sign is the Base Station Identification of higher level's access node, and (Node 1 for one or more higher level's access nodes that pre-configured ultimate access node can insert; Node 2 ..., Node n) and higher level's access node relevant base station sign (eNB ID 1; ENB ID 2 ..., eNB ID n).Ultimate access node has selected higher level's access node Node x to insert according to the principle of cell selecting/gravity treatment, and the Base Station Identification eNB ID x of higher level's access node Node x is configured to the outside sign of ultimate access node so.
Mode two; One or more higher level's access nodes that the OAM system of ultimate access node can insert ultimate access node; And higher level's access node sends to ultimate access node with the outside corresponding relation that identifies; Ultimate access node selects one of them higher level's access node to insert according to the principle of cell selecting/gravity treatment, and is configured to the outside sign of ultimate access node to corresponding outside sign.For example, outside sign is the Base Station Identification of higher level's access node.
Step 1, ultimate access node is connected with the OAM of ultimate access node through access network node.Said access network node can be higher level's access node of ultimate access node.
Step 2, ultimate access node be from said OAM data download, and (Node 1 comprising one or more higher level's access nodes that ultimate access node can insert; Node 2 ..., Node n) and higher level's access node relevant base station sign (eNB ID 1; ENB ID 2 ..., eNB ID n).
Step 3, ultimate access node has selected higher level's access node Nodex to insert according to the principle of cell selecting/gravity treatment.If the access network node in the step 1 is not said Node x, so ultimate access node break off with said access network node between be connected, and connect with Node x.If the access network node in the step 1 is said Node x, so ultimate access node keep with higher level's access node between be connected.The Base Station Identification eNB ID x of higher level's access node Node x is configured to the outside sign of ultimate access node so.
The internal indicator of ultimate access node is by the configuration of higher level's access node, perhaps by ultimate access node self configuration, perhaps pre-configured (as artificially pre-configured).
Higher level's access node is that the internal indicator of ultimate access node configuration is that (sub-district that the TA that supports like ultimate access point or higher level's access point of ultimate access point are had jurisdiction over) is unique in certain setting range, and the mode of configuration has:
Mode one, what know access at higher level's access node is (core net notice or ultimate access node notice) after the ultimate access node, higher level's access node is ultimate access node configuration internal indicator.Fig. 4 is method one sketch map of ultimate node configuration internal indicator for higher level's access node, and is as shown in Figure 4, may further comprise the steps:
Step 1, ultimate access node are set up RRC with higher level's access node and are connected, and the optional ultimate access node identity with self of ultimate access node is notified the higher level access node in this process.
Step 2, ultimate access node is initiated Non-Access Stratum (NAS, Non Access Stratum) flow process (as adhering to (Attach), tracing section updating (TAU, Tracking Area Update), service request (SR, Service Request)).
Step 3, core network element carries out safety certification to ultimate access node.
Step 4 after the safety certification success, is carried out the context of ultimate access node and is set up between higher level's access node of core network element MME and RN.In this process; Core net is optional, and what notify that higher level's access node inserts is ultimate access node; For example core network element MME notifies the higher level access node through S1 message (INITIAL CONTEXT SETUP REQUEST), and higher level's access node confirms that according to the SPID that wherein carries the node that inserts is ultimate access node.
Step 5; Through the information that obtains in step 1 or the step 4; Higher level's access node is known the ultimate access node identity of access node, and (connect reallocation message like RRC, S1 sets up message to send dedicated signaling; X2 sets up message etc.) give ultimate access node, wherein carry the internal indicator of ultimate access node.
Mode two, after receiving the request message that ultimate access node sends, higher level's access node is ultimate access node configuration internal indicator according to described request message.Fig. 5 is the method two sketch map of ultimate node configuration internal indicator for higher level's access node, and is as shown in Figure 5, may further comprise the steps:
Step 1, ultimate access node send a request message to higher level's access node, and request higher level access node is ultimate access node configuration internal indicator.
Described request message comprise following one of at least: the type of ultimate access node, higher level's access node information that ultimate access node can insert, the working frequency range of ultimate access node.In the TA scope that ultimate access node is supported, described request message also comprises the TAC of the TA that ultimate access node is supported.
For example, the type of RN comprise following one of at least: Type 1/1a/1b; (inband)/band outer (outband) in the band; Time division duplex/non-time division duplex.
The information of higher level's access node comprise following one of at least: Base Station Identification (eNB ID), cell ID (PCI (Physical Cell Identity)/Cell Identity/Cell ID/ECGI (E-UTRAN Cell Global Identifier)); Working frequency range; Descending frequency; Up frequency.
Step 2, higher level's access node is ultimate access node configuration internal indicator according to described request information.
In the scope of higher level's access node jurisdiction district, higher level's access node is unique sign in the ultimate access node configuration jurisdiction district.
In the scope of the TA that ultimate access node is supported, higher level's access node is unique sign in the ultimate access node configuration TA scope.
Ultimate access node is unique in certain setting range (sub-district that the TA that supports like ultimate access point or higher level's access point of ultimate access point are had jurisdiction over) for the internal indicator of self configuration, and the mode of configuration has:
Mode one, after receiving the message of carrying one or more internal indicators that higher level's access node sends, ultimate access node is therefrom selected one of which at random, and notifies the higher level access node through the upstream message feedback.
Method two; In the system information of ultimate access node, carry under the situation of internal indicator; Ultimate access node receives the system information of other the ultimate access nodes in certain setting range (sub-district that the TA that supports like ultimate access point or higher level's access point of ultimate access point are had jurisdiction over), thereby obtains the internal indicator of said other ultimate access nodes.Ultimate access node also can be through obtaining the internal indicator of said other ultimate access nodes with the direct interface message of other ultimate access nodes.Ultimate access node selects to be different from the internal indicator of said other ultimate access nodes for self, and notifies the higher level access node through the upstream message feedback.
Alternatively; Higher level's access node is received said upstream message feedback; If said internal indicator is not taken by other the ultimate access nodes in certain setting range (sub-district that the TA that supports like ultimate access point or higher level's access point of ultimate access point are had jurisdiction over); Then higher level's access node feeding back ACK representes that ultimate access node is for self distributing said internal indicator success.Otherwise; If said internal indicator is taken by other the ultimate access nodes in certain setting range (sub-district that the TA that supports like ultimate access point or higher level's access point of ultimate access point are had jurisdiction over); Then higher level's access node feedback NACK representes that ultimate access node is for self distributing said internal indicator failure.
Ultimate access node is under the situation of self distributing said internal indicator failure; Ultimate access node is reselected until distributing successfully; Perhaps higher level's access node is informed the internal indicator (being that the internal indicator that higher level's access node is selected substitutes the internal indicator that ultimate access node is selected) that ultimate access node can be used in feedback NACK, and then ultimate access node adopts said internal indicator.
The internal indicator of pre-configured ultimate access node is that the whole network is unique, like SPID.After ultimate access node and higher level's access node connected, ultimate access node was notified the higher level access node with pre-configured internal indicator.
Embodiment one
What present embodiment was described is, is that RN, higher level's access node are under the situation of host base station at ultimate access node, and ultimate access node is set up the process that S1 is connected with higher level's access node.Fig. 6 sets up the flow chart that S1 is connected between the RN of the embodiment of the invention one and the DeNB, and is as shown in Figure 6, specifically may further comprise the steps:
Step 101, ultimate access node is initiated the S1 connection building process, and the S1 that ultimate access node sends the outside sign of carrying ultimate access node sets up request message (S1 SETUP REQUEST) to higher level's access node, is used to ask the S1 establishment of connection.
If the internal indicator of ultimate access node disposes, so said S1 sets up the internal indicator that also need carry ultimate access node in the request message.
Higher level's access node is that self sign judges it is that ultimate access node request is set up S1 and connected according to outside sign.
If the internal indicator of ultimate access node disposes, promptly said S1 sets up the internal indicator that request message carries ultimate access node, and higher level's access node also judges it is that the S1 connection is set up in certain concrete ultimate access node request according to said internal indicator.
If the internal indicator of ultimate access node does not dispose, promptly said S1 sets up the internal indicator that request message does not carry ultimate access node, and higher level's access node judges it is that the S1 connection is set up in the RN request of not disposing internal indicator.
Step 102 is connected if higher level's access node allows to set up S1 with ultimate access node, then sends S1 and sets up response message (S1 SETUP RESPONSE) to ultimate access node.Otherwise,, then send S1 and set up failed message (S1 SETUP FAILURE) to ultimate access node if higher level's access node does not allow to set up S1 with ultimate access node and is connected.
If the internal indicator of ultimate access node does not dispose, higher level's access node is set up the internal indicator that carries in the response message to ultimate access node configuration at S1.
Said internal indicator comprise following one of at least: Base Station Identification (eNB ID); Cell ID (PCI (Physical Cell Identity)/Cell Identity/Cell ID/ECGI (E-UTRAN Cell Global Identifier)); SPID, X2AP ID (if having set up between ultimate access node and the higher level's access node under the situation that X2 is connected).
Wherein, Internal indicator is under the situation of Base Station Identification of ultimate access node; The high 20bits of the Base Station Identification of ultimate access node is consistent with the Base Station Identification of higher level's access node, and all the other bits are unique in certain setting range (sub-district that the TA that supports like ultimate access point or higher level's access point of ultimate access point are had jurisdiction over).If the inside and outside of ultimate access node sign all is a Base Station Identification; And the outside preceding 20bits that is designated internal indicator; Then ultimate access node can only carry internal indicator, and keeps the internal indicator as ultimate access node by 20bits before the intercepting of higher level's access node.
Embodiment two
What present embodiment was described is that target BS is the another kind of implementation of the S1 switching flow of ultimate access node.Fig. 7 is S1 switching preparation process figure of RN for the target BS of the embodiment of the invention two, and is as shown in Figure 7, specifically may further comprise the steps:
Set up S1 between higher level's access node and the ultimate access node in the present embodiment and be connected, do not set up X2 between source base station and the higher level's access node and be connected.
Step 201, the measurement report that source base station reports according to RRM (RRM, Radio Resource Management) and UE are judged UE are switched to Target cell (ultimate access node jurisdiction district).Source base station is initiated the S1 switching preparation process.The outside sign of ultimate access node is carried in the source base station transmission and the switching of internal indicator requires message (HANDOVER REQUIRED) to give MME.
Source base station obtains the outside sign of ultimate access node and the method for internal indicator is: the outside sign and the internal indicator of ultimate access node broadcasting self, UE through measuring the ultimate access node of acquisition outside sign and internal indicator and it is reported source base station.
Source base station judges between source base station and the upper network node whether exist X2 to be connected according to the outside of ultimate access node sign, because do not exist X2 to be connected between source base station and the upper network node, so source base station initiation S1 switching preparation process.
Said outside sign is the Base Station Identification of higher level's access node.Said internal indicator be following identification information one of at least: the Base Station Identification of ultimate access node; The cell ID of ultimate access node; The SPID of ultimate access node; The S1AP ID that S1 is connected between the X2AP ID that X2 is connected between higher level's access node and the ultimate access node, higher level's access node and ultimate access node.
For example, the eNB ID that switches among the Target ID that requires to carry in the message is the Base Station Identification (outside sign) of higher level's access node.Switch the cell ID (internal indicator) that carries ultimate access node among the Source To Target Transparent Container that requires to carry in the message.Said cell ID is Cell Identity.At ultimate access node is under the situation of RN, and said cell ID can also be PCI.
Step 202, MME receives that said switching requires message, is the Base Station Identification addressing higher level access node of higher level's access node according to the outside sign, sends S1 handoff request message (HANDOVER REQUEST) and gives higher level's access node.
Step 203, higher level's access node are received said handoff request message, are the ultimate access nodes of cell ID addressing of ultimate access node according to internal indicator, send S1 handoff request message (HANDOVER REQUEST) and give ultimate access node.
Step 204 if ultimate access node allows UE to insert the jurisdiction district, is then sent switching request acknowledgement message (HANDOVER REQUEST ACKNOWLEDGE) and is given higher level's access node.Otherwise,, then send switch failure information (HANDOVER FAILURE) and give higher level's access node if ultimate access node does not allow UE to insert the jurisdiction district.
Higher level's access node according to the switching request acknowledgement message in the step 204 or switch failure information to the handoff request message feedback received in the step 203 (if promptly higher level's access node is received switching request acknowledgement message then is fed back switching request acknowledgement message; Feed back switch failure information if higher level's access node is received switch failure information), perhaps direct handoff request message feedback to receiving in the step 203.
MME requires message feedback to the feedback message of the handoff request message in the step 203 to the switching in the step 201 according to higher level's access node; If higher level's access node feedback is switching request acknowledgement message; Then MME sends switching command (HANDOVER COMMAND) and gives source base station; If higher level's access node feedback is switch failure information, then MME sends to switch and prepares failed message (HANDOVER PREPARATION FAILURE) to source base station.
Switching under the preparation case of successful, source base station is transmitted to UE with the relevant information in the switching command, and UE begins to switch to the flow process of ultimate access node jurisdiction district.
Embodiment three
What present embodiment was described is that target BS is the X2 switching flow of ultimate access node.Fig. 8 is X2 switching preparation process figure of RN for the target BS of the embodiment of the invention three, and is as shown in Figure 8, specifically may further comprise the steps:
Set up X2 between higher level's access node and the ultimate access node in the present embodiment and be connected, set up X2 between source base station and the upper network node and be connected.
Step 301, the measurement report that source base station reports according to RRM and UE are judged UE are switched to Target cell (ultimate access node jurisdiction district).Source base station is initiated the X2 switching preparation process.Source base station sends the handoff request message (HANDOVER REQUIRED) of the internal indicator that carries ultimate access node and gives upper network node.
Source base station obtains the outside sign of ultimate access node and the method for internal indicator is: the outside sign and the internal indicator of ultimate access node broadcasting self, UE through measuring the ultimate access node of acquisition outside sign and internal indicator and it is reported source base station.
Source base station judges between source base station and the higher level's access node whether exist X2 to be connected according to the outside of ultimate access node sign, because exist X2 to be connected between source base station and the higher level's access node, so source base station initiation X2 switching preparation process.
Said outside sign is the Base Station Identification of higher level's access node.Said internal indicator be meant following one of at least: the Base Station Identification of ultimate access node; The cell ID of ultimate access node; The SPID of ultimate access node; The S1AP ID that S1 is connected between the X2AP ID that X2 is connected between higher level's access node and the ultimate access node, higher level's access node and ultimate access node.
For example: the Target Cell ID that carries in the handoff request message is the cell ID (internal indicator) of ultimate access node.Said cell ID is ECGI.
Step 302, upper network node are received said handoff request message, are the ultimate access nodes of cell ID addressing of ultimate access node according to internal indicator, send handoff request message (HANDOVER REQUEST) and give ultimate access node.
Step 303 if ultimate access node allows UE to insert the jurisdiction district, is then sent switching request acknowledgement message (HANDOVER REQUEST ACKNOWLEDGE) and is given higher level's access node.Otherwise,, then send to switch and prepare failed message (HANDOVER PREPARATION FAILURE) to higher level's access node if ultimate access node does not allow UE to insert the jurisdiction district.
Higher level's access node according to the switching request acknowledgement message in the step 303 or switch to prepare failed message to the handoff request message feedback received in the step 301 (if promptly higher level's access node is received switching request acknowledgement message then is fed back switching request acknowledgement message; Feed back switch failure information if higher level's access node is received switch failure information), perhaps direct handoff request message feedback to receiving in the step 301.
Among the present invention, though be that example describes with RN and host base station, technical scheme of the present invention is equally applicable to the situation of Home eNodeB and femto gateway.The implementation of the technical scheme of the two is identical.Just, the information of internal indicator wherein and outside sign is corresponding different.
The system that the present invention identifies ultimate access node is applicable in the communication system that comprises ultimate access node; Fig. 9 identifies the composition structural representation of the system of ultimate access node for the present invention; As shown in Figure 9; The system that the present invention identifies ultimate access node comprises dispensing unit 90 and interactive unit 91, wherein
Dispensing unit 90 is used to ultimate access node configuration internal indicator and outside sign;
Interactive unit 91; The internal indicator that is used to be utilized as said ultimate access node configuration carries out alternately with higher level's access node of said ultimate access node, and the outside that is utilized as said ultimate access node configuration identifies and the network node except that said higher level's access node carries out alternately.
Dispensing unit 90 is realized the configuration to the outside sign of ultimate access node in the following manner:
Higher level's access node of said ultimate access node sends system information or the dedicated signaling that carries outside sign to said ultimate access node, and said ultimate access node receives said system information or dedicated signaling, obtains and the configuring external sign; Perhaps, said ultimate access node identifies in the outside of choosing in the outside sign more than of pre-configured or OAM system configuration, is self configuring external sign, and notifies higher level's access node of said ultimate access node;
Above-mentioned dispensing unit 90 is realized the configuration to ultimate access node internal indicator in the following manner:
Higher level's access node of said ultimate access node sends the dedicated signaling that carries said internal indicator to said ultimate access node; Perhaps; Said ultimate access node is after the dedicated signaling of said internal indicator is carried in higher level's access node transmission of said ultimate access node, and higher level's access node of said ultimate access node sends the dedicated signaling that indication is confirmed to said ultimate access node; Perhaps, pre-configured or be the unique internal indicator of said ultimate access node configuration for said ultimate access node through the OAM system.
The internal indicator that carries in the said dedicated signaling is one when above; Said ultimate access node is therefrom selected an internal indicator as self at random; Perhaps; Said ultimate access node is chosen an internal indicator as self that is different from other ultimate access nodes according to the internal indicator of other ultimate access nodes of higher level's access point of received said ultimate access node, and notifies higher level's access node of said ultimate access node.
The outside of said ultimate access node is designated the identification information of higher level's access node of said ultimate access node; The internal indicator of said ultimate access node is the sign of said ultimate access node self;
Wherein, the outside of said ultimate access node sign comprise following sign one of at least: the Location Area Code of higher level's access node of the sign of higher level's access node of said ultimate access node, the cell ID of higher level's access node of said ultimate access node, said ultimate access node;
The internal indicator of said ultimate access node comprise following sign one of at least: the sign that is connected link between higher level's access node of the sign of said ultimate access node, the cell ID of said ultimate access node, SPID, said ultimate access node and said ultimate access node.
Said ultimate access node is RN, and said higher level's access node is the host base station;
Perhaps, said ultimate access node is a Home eNodeB, and said higher level's access node is a femto gateway.
Those skilled in the art are to be understood that; The system of the ultimate access node of sign that the present invention is shown in Figure 9 is for the method that realizes the ultimate access node of aforesaid sign designs, and the realization function of above-mentioned each processing unit can be with reference to the associated description of preceding method and understood.The function of each processing unit among the figure can realize through the program that runs on the processor, also can realize through concrete logical circuit.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (16)
1. the method for the ultimate access node of sign is characterized in that, is ultimate access node configuration internal indicator and outside sign; Said method also comprises:
Be utilized as the internal indicator of said ultimate access node configuration and higher level's access node of said ultimate access node and carry out alternately, the outside sign and the network node except that said higher level's access node that are utilized as said ultimate access node configuration carry out alternately.
2. method according to claim 1 is characterized in that, said is that ultimate access node configuring external sign is specially:
Higher level's access node of said ultimate access node sends system information or the dedicated signaling that carries outside sign to said ultimate access node, and said ultimate access node receives said system information or dedicated signaling, obtains and the configuring external sign;
Perhaps, said ultimate access node identifies in the outside of choosing in the outside sign more than of pre-configured or operation management maintain (OAM) system configuration, is self configuring external sign, and notifies higher level's access node of said ultimate access node.
3. method according to claim 1 is characterized in that, said is that ultimate access node configuration internal indicator is specially:
Higher level's access node of said ultimate access node sends the dedicated signaling that carries said internal indicator to said ultimate access node;
Perhaps; Said ultimate access node is after the dedicated signaling of said internal indicator is carried in higher level's access node transmission of said ultimate access node, and higher level's access node of said ultimate access node sends the dedicated signaling that indication is confirmed to said ultimate access node;
Perhaps, pre-configured or be the unique internal indicator of said ultimate access node configuration for said ultimate access node through the OAM system.
4. according to claim 2 or 3 described methods, it is characterized in that, said dedicated signaling comprise following message one of at least: RRC connection building process message, RRC connect reprovision flow process message, and S1 sets up flow process message, and X2 sets up flow process message.
5. method according to claim 3; It is characterized in that; The internal indicator that carries in the said dedicated signaling is one when above, and said ultimate access node is therefrom selected an internal indicator as self at random, perhaps; Said ultimate access node is chosen an internal indicator as self that is different from other ultimate access nodes according to the internal indicator of other ultimate access nodes of received said higher level's access node, and notifies higher level's access node of said ultimate access node.
6. according to claim 1,2,3 or 5 described methods, it is characterized in that the outside of said ultimate access node is designated the identification information of higher level's access node of said ultimate access node; The internal indicator of said ultimate access node is the sign of said ultimate access node self.
7. method according to claim 6; It is characterized in that, the outside of said ultimate access node sign comprise following sign one of at least: the Location Area Code of higher level's access node of the sign of higher level's access node of said ultimate access node, the cell ID of higher level's access node of said ultimate access node, said ultimate access node.
8. method according to claim 6; It is characterized in that, the internal indicator of said ultimate access node comprise following sign one of at least: the sign that is connected link between higher level's access node of the sign of said ultimate access node, the cell ID of said ultimate access node, service profiles sign (SPID), said ultimate access node and said ultimate access node.
9. method according to claim 6 is characterized in that, said ultimate access node is via node (RN), and said higher level's access node is host base station (DeNB);
Perhaps, said ultimate access node is Home eNodeB (HeNB), and said higher level's access node is femto gateway (HeNB-GW).
10. method according to claim 6 is characterized in that, said method also comprises:
Said ultimate access node is set up request message to higher level's access node transmission connection of said ultimate access node, and the internal indicator that request message carries said ultimate access node is set up in said connection.
11. method according to claim 6 is characterized in that, said method also comprises:
Source base station sends handoff request message according to the outside sign of the ultimate access node of target to higher level's access node of said ultimate access node, carries the internal indicator of said ultimate access node in the said handoff request message;
Higher level's access node of said ultimate access node is transmitted handoff request message according to the internal indicator of said ultimate access node to said ultimate access node.
12. the system of the ultimate access node of sign is applied to comprise in the communication system of ultimate access node, it is characterized in that said system comprises dispensing unit and interactive unit, wherein,
Dispensing unit is used to ultimate access node configuration internal indicator and outside sign;
Interactive unit; The internal indicator that is used to be utilized as said ultimate access node configuration carries out alternately with higher level's access node of said ultimate access node, and the outside that is utilized as said ultimate access node configuration identifies and the network node except that said higher level's access node carries out alternately.
13. system according to claim 12 is characterized in that, said dispensing unit is realized the configuration to the outside sign of ultimate access node in the following manner:
Higher level's access node of said ultimate access node sends system information or the dedicated signaling that carries outside sign to said ultimate access node, and said ultimate access node receives said system information or dedicated signaling, obtains and the configuring external sign; Perhaps, said ultimate access node identifies in the outside of choosing in the outside sign more than of pre-configured or OAM system configuration, is self configuring external sign, and notifies higher level's access node of said ultimate access node;
Said dispensing unit is realized the configuration to ultimate access node internal indicator in the following manner:
Higher level's access node of said ultimate access node sends the dedicated signaling that carries said internal indicator to said ultimate access node; Perhaps; Said ultimate access node is after the dedicated signaling of said internal indicator is carried in higher level's access node transmission of said ultimate access node, and higher level's access node of said ultimate access node sends the dedicated signaling that indication is confirmed to said ultimate access node; Perhaps, pre-configured or be the unique internal indicator of said ultimate access node configuration for said ultimate access node through the OAM system.
14. system according to claim 13; It is characterized in that; The internal indicator that carries in the said dedicated signaling is one when above; Said ultimate access node is therefrom selected an internal indicator as self at random; Perhaps, said ultimate access node is chosen an internal indicator as self that is different from other ultimate access nodes according to the internal indicator of other ultimate access nodes of received said ultimate access node, and notifies higher level's access node of said ultimate access node.
15., it is characterized in that the outside of said ultimate access node is designated the identification information of higher level's access node of said ultimate access node according to each described system of claim 12 to 14; The internal indicator of said ultimate access node is the sign of said ultimate access node self;
Wherein, the outside of said ultimate access node sign comprise following sign one of at least: the Location Area Code of higher level's access node of the sign of higher level's access node of said ultimate access node, the cell ID of higher level's access node of said ultimate access node, said ultimate access node;
The internal indicator of said ultimate access node comprise following sign one of at least: the sign that is connected link between higher level's access node of the sign of said ultimate access node, the cell ID of said ultimate access node, SPID, said ultimate access node and said ultimate access node.
16. system according to claim 15 is characterized in that, said ultimate access node is a via node, and said higher level's access node is the host base station;
Perhaps, said ultimate access node is a Home eNodeB, and said higher level's access node is a femto gateway.
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CN101321383A (en) * | 2007-06-05 | 2008-12-10 | 华为技术有限公司 | Communication system and method, household base station gateway and home subscriber server |
CN101631400A (en) * | 2008-07-14 | 2010-01-20 | 中兴通讯股份有限公司 | Method and system for managing domestic base station |
CN101754317A (en) * | 2008-12-15 | 2010-06-23 | 华为技术有限公司 | Method, device and system for routing cell switching information |
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