CN102271381A - NodeB connecting method and device of LTE (Long Term Evolution) system - Google Patents
NodeB connecting method and device of LTE (Long Term Evolution) system Download PDFInfo
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Abstract
The invention discloses a NodeB connecting method of an LTE (Long Term Evolution) system. The NodeB connecting method comprises the following steps of: determining a neighbor area destination NodeB of a local area source NodeB, and getting first addressing information for addressing the neighbor area destination NodeB and second addressing information for addressing the local area source NodeB, wherein at least one side of the local area source NodeB and the neighbor area destination NodeB is a home eNodeB; the local area source NodeB sends connection request information to a NodeB gateway; the NodeB gateway routes the connection request information to the corresponding neighbor area destination NodeB according to the first addressing information; the neighbor area destination NodeB responds the connection request information and returns request response information to the NodeB gateway; and the NodeB gateway routes the request response information to the local area source NodeB according to the second addressing information. According to the method disclosed by the invention, influence to nodes of a core network can be reduced, and procession pressure of the core network can be reduced.
Description
Technical field
The present invention relates to the technical field of mobile communication Long Term Evolution LTE, particularly relate to a kind of base station, femto gateway device and attaching method thereof.
Background technology
Present mobile communication more and more trends towards providing the high-speed transfer multimedia service, for the improvement system is experienced in the transmission of covering, throughput and the indoor user of hot zones, in the standardized process of LTE, a kind of Home eNodeB (HomeeNodeB, arise at the historic moment by HeNB) notion and technology.
Different with the base station of traditional cellular communication, Home eNodeB be a kind of small-sized, can be installed in base station indoor, flexible configuration.Have statistics to show, for multimedia service at a high speed, broadband services more applications scene is indoor and hot zones.Adopt traditional cellular mobile communication mode then to the support deficiency of this type of demand.The birth of Home eNodeB just for solve such contradiction, offer need multimedia service indoor user with better user experience.
Family station technology at the LTE system, on business, the LTE system is aspect the up-downgoing transmission rate, need reach the transmission rate of descending 100Mbit/s and up 50Mbit/s, and can formulate different transmission policys according to the different QoS requirements of different business, LTE is also more and more higher for the requirement of propagation delay time, and the maximum delay that reaches Access Network requirement client layer is no more than 5ms, and the maximum delay of key-course is no more than 100ms.
On the angle of technology, the OFDMA access way is adopted in the transmission of LTE system descending, and Single Carrier Frequency Division Multiple Access is adopted in uplink, has effectively suppressed the interference between this community user, has utilized broader frequency spectrum efficiently, and has reduced the peak-to-average force ratio of transmission signals.The introducing of MIMO technology has also increased the message transmission rate of LTE greatly.In addition, technology such as AMC, power control, interference coordination also play great role for the raising of LTE systematic function.
The LTE system has changed wireless access way except in the Access Network part, has introduced outside some enhancement techniques, and bigger change has also been arranged on the network overall structure.The LTE system has adopted a kind of flat network configuration, cancelled the RNC (radio network controller) of WCDMA system, NodeB is upgraded to eNodeB (enhanced Node B), eNode B is integrated, and the function of RNC such as management, handover management, the flow of wireless network resource compiled etc. in the past, further reduce the transmission process time delay, strengthened the flexibility ratio of the network operation.In the LTE system, macro base station (eNB) is a comprehensive powerful access network node.
Introduced the LTE system of Home eNodeB, consistent basically with the LTE system that does not dispose Home eNodeB on the network configuration of integral body, but volume is little, Installation Flexibility is high because Home eNodeB need possess, the communication relative complex between the corresponding Home eNodeB.Figure 1 shows that the LTE system configuration (E-UTRAN) of having introduced Home eNodeB.
E-UTRAN has introduced femto gateway (HomeeNB Gateway, HeNB GW) on logical construction, be equivalent to expand the S1 interface between Home eNodeB and the core net, thereby can dispose more Home eNodeB in system.As can be seen from Figure 1, dispose the LTE system of Home eNodeB, main operational module comprises: macro base station eNB, Home eNodeB HeNB, femto gateway HeNB GW and mobile management module MME or gateway S-GW; Wherein, what adopt between the eNB is X2 interface, what adopt between eNB and the MME/S-GW is the S1 interface, HeNB can directly be connected with MME/S-GW, also can be linked into MME/S-GW by a centralized node HeNBGW, do not have interface between the HeNB, and present LTE standard also wouldn't be supported the X2 interface between the HeNB.HeNB can only link to each other with a HeNB GW simultaneously.
In the above-mentioned network architecture,, therefore switch and all realize by the S1 interface owing to do not have X2 interface between the HeNB.In present many application scenarioss, particularly in enterprise, in the communication deployment scenario in campus, a large amount of users may move between HeNB, if only use the process of S1 interface switching, will cause the excessive problem of processing pressure of core net.
Therefore, need the urgent technical problem that solves of those skilled in the art to be exactly at present: how can propose between a kind of Home eNodeB with innovating, to create a mechanism being connected between Home eNodeB and the macro base station, to reduce influence, reduce the processing pressure of core net to core net node.
Summary of the invention
Technical problem to be solved by this invention provides the base station method of attachment and the device of a kind of LTE system, to reduce the influence to core net node, reduces the processing pressure of core net.
The present invention also provides a kind of LTE system that disposes Home eNodeB, and a kind of femto gateway is to guarantee said method and device application in practice.
In order to solve the problems of the technologies described above, the embodiment of the invention discloses the base station method of attachment of a kind of LTE system, comprise base station and base-station gateway in the described LTE system, described base-station gateway is connected by fixed interface with each base station respectively, and described method comprises:
Determine the adjacent area target BS of local area source base station, obtain to be used for the adjacent area target BS is carried out first addressing information of addressing, and, be used for the local area source base station is carried out second addressing information of addressing; Wherein, at least one side of described local area source base station and adjacent area target BS is a Home eNodeB;
Described local area source base station sends connection request message to base-station gateway, comprises first addressing information and second addressing information in the described connection request message;
Described base-station gateway routes to corresponding adjacent area target BS according to described first addressing information with this connection request message;
Described adjacent area target BS responds described connection request message, returns request response to base-station gateway, comprises second addressing information that extracts from described connection request message in the described request response message;
Described base-station gateway routes to described local area source base station according to described second addressing information with this request response.
Preferably, described base-station gateway is femto gateway HeNB GW, and the fixed interface that described base-station gateway is connected with each base station is an X2 interface;
Described local area source base station is Home eNodeB HeNB1, and described adjacent area target BS is Home eNodeB HeNB2;
Perhaps, described local area source base station is Home eNodeB HeNB1, and described adjacent area target BS is macro base station eNB2;
Perhaps, described local area source base station is macro base station eNB1, and described adjacent area target BS is Home eNodeB HeNB2.
Preferably, the adjacent area target BS of described local area source base station is at the Operation and Maintenance platform Q﹠amp of LTE system; Configuration is determined among the M.
Preferably, the adjacent area target BS of described local area source base station is determined according to the user terminal UE result that measurement reports at the local area source base station.
Preferably, described method also comprises: the following steps of carrying out when the X2 interface configuration parameter of local area source base station changes:
Described local area source base station comprises first addressing information and second addressing information of renewal to base-station gateway transmission interface configuration update message in the described interface configuration updating message;
Described base-station gateway routes to corresponding adjacent area target BS according to first addressing information of described renewal with this interface configuration updating message;
Described adjacent area target BS responds described interface configuration updating message, returns and upgrades response message to base-station gateway, comprises second addressing information that extracts from described interface configuration updating message in the described renewal response message;
Described base-station gateway should upgrade response message and route to described local area source base station according to described second addressing information.
Preferably, described first addressing information comprises a plurality of; And/or described second addressing information comprises a plurality of.
Preferably, the ID that described first addressing information is the local area source base station and/or the IP address of local area source base station, the ID that described second addressing information is the adjacent area target BS and/or the IP address of adjacent area target BS.
The embodiment of the invention also discloses the base station jockey of a kind of LTE system, described device comprises several base stations and base-station gateway, and described base-station gateway is connected by fixed interface with each base station respectively, and wherein, described base station comprises:
Configuration module is used for determining the adjacent area target BS of local area source base station, obtains to be used for the adjacent area target BS is carried out first addressing information of addressing, and, be used for the local area source base station is carried out second addressing information of addressing; Wherein, at least one side of described local area source base station and adjacent area target BS is a Home eNodeB;
First message sends submodule, is used for sending connection request message to base-station gateway, comprises first addressing information and second addressing information in the described connection request message;
The first response submodule is used for described connection request message is responded, and returns request response to base-station gateway, comprises second addressing information that extracts from described connection request message in the described request response message;
Described base-station gateway comprises:
The first via is used for according to described first addressing information this connection request message being routed to corresponding adjacent area target BS by submodule; And, according to described second addressing information, this request response is routed to described local area source base station.
Preferably, described base-station gateway is femto gateway HeNB GW, and the fixed interface that described base-station gateway is connected with each base station is an X2 interface;
Described local area source base station is Home eNodeB HeNB1, and described adjacent area target BS is Home eNodeB HeNB2;
Perhaps, described local area source base station is Home eNodeB HeNB1, and described adjacent area target BS is macro base station eNB2;
Perhaps, described local area source base station is macro base station eNB1, and described adjacent area target BS is Home eNodeB HeNB2.
Preferably, the adjacent area target BS of described local area source base station is at the Operation and Maintenance platform Q﹠amp of LTE system; Configuration is determined among the M.
Preferably, the adjacent area target BS of described local area source base station is determined according to the user terminal UE result that measurement reports at the local area source base station.
Preferably, when the X2 interface configuration parameter of local area source base station changed, described base station also comprised:
Second message sends submodule: be used for to base-station gateway transmission interface configuration update message, comprise first addressing information and second addressing information of renewal in the described interface configuration updating message;
The second response submodule is used for described interface configuration updating message is responded, and returns and upgrades response message to base-station gateway, comprises second addressing information that extracts from described interface configuration updating message in the described renewal response message;
Described base-station gateway also comprises:
The secondary route submodule is used for first addressing information according to described renewal, and this interface configuration updating message is routed to corresponding adjacent area target BS; And, according to described second addressing information, should upgrade response message and route to described local area source base station.
Preferably, described first addressing information comprises a plurality of; And/or described second addressing information comprises a plurality of.
The embodiment of the invention also discloses the base station in a kind of LTE system, comprising:
Configuration module is used for determining the adjacent area target BS of local area source base station, obtains to be used for the adjacent area target BS is carried out first addressing information of addressing, and, be used for the local area source base station is carried out second addressing information of addressing; Wherein, when described local area source base station was Home eNodeB HeNB1, described adjacent area target BS was Home eNodeB HeNB2 or macro base station eNB2; Perhaps, when described local area source base station was macro base station eNB1, described adjacent area target BS was Home eNodeB HeNB2;
First message transmission module is used for sending connection request message to base-station gateway, comprises first addressing information and second addressing information in the described connection request message;
First respond module is used for described connection request message is responded, and returns request response to base-station gateway, comprises second addressing information that extracts from described connection request message in the described request response message;
The described configuration module and first message transmission module are called during as the local area source base station in current base station, and described first respond module is called during as the adjacent area target BS in current base station.
Preferably, described base-station gateway is femto gateway HeNB GW, described base station is connected by X2 interface with femto gateway HeNB GW, and when the X2 interface configuration parameter of local area source base station changed, described base station also comprised with lower module during as the local area source base station:
Second message transmission module: be used for to base-station gateway transmission interface configuration update message, comprise first addressing information and second addressing information of renewal in the described interface configuration updating message;
Described base station also comprises with lower module during as the adjacent area target BS:
Second respond module is used for described interface configuration updating message is responded, and returns and upgrades response message to base-station gateway, comprises second addressing information that extracts from described interface configuration updating message in the described renewal response message.
The embodiment of the invention also discloses a kind of femto gateway, comprising:
First routing module is used for according to first addressing information that is used for the adjacent area target BS is carried out addressing, and the connection request message that the local area source base station is sent routes to corresponding adjacent area target BS; And according to second addressing information that is used for the local area source base station is carried out addressing, the request response that the adjacent area target BS is sent routes to described local area source base station.
Preferably, described femto gateway HeNB GW is connected by X2 interface with the base station; When the X2 interface configuration parameter of local area source base station changed, described femto gateway also comprised with lower module:
The secondary route module is used for first addressing information according to described renewal, and the interface configuration updating message that the local area source base station is sent routes to corresponding adjacent area target BS; And according to second addressing information that extracts from described interface configuration updating message, the renewal response message that the adjacent area target BS is sent routes to described local area source base station.
Compared with prior art, the present invention has the following advantages:
The present invention is by determining the adjacent area target BS (at least one side of described local area source base station and adjacent area target BS is a Home eNodeB) of local area source base station in the LTE system, and between described local area source base station and adjacent area target BS, set up the connection of fixed interface (non-S1 interface) by base-station gateway, in the message that connects, need carry the information that is used for the adjacent area target BS is carried out addressing, in the message of connection response, need carry the information that is used for the source target BS is carried out addressing; Carry out the route of message according to these addressing informations by base-station gateway.Because base-station gateway can be used for termination or transfer Home eNodeB and Home eNodeB, perhaps, the fixed interface of Home eNodeB and macro base station, thereby make Home eNodeB can utilize this fixed interface to initiate the handoff procedure of this fixed interface, do not need to want core net to participate in, thereby reduce influence, reduce the processing pressure of core net core net node.
Description of drawings
Fig. 1 is a network architecture schematic diagram of having introduced the LTE system configuration (E-UTRAN) of Home eNodeB in the prior art;
Fig. 2 is the flow chart of steps of the base station method of attachment embodiment 1 of a kind of LTE of the present invention system;
Fig. 3 is the network architecture schematic diagram of the LTE system of the applied a kind of HeNB of disposing of the embodiment of the invention;
Fig. 4 is the signaling process figure of the base station method of attachment embodiment 2 of a kind of LTE of the present invention system;
Fig. 5 is the signaling process figure of the base station method of attachment embodiment 3 of a kind of LTE of the present invention system;
Fig. 6 is a kind of signaling process figure that is initiated X2 interface config update example by local area source base station HeNB1/eNB1 of the present invention;
Fig. 7 is the structured flowchart of the base station jockey embodiment 1 of a kind of LTE of the present invention system;
Fig. 8 is the structured flowchart of base station jockey embodiment 2 in a kind of LTE of the present invention system.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
For making those skilled in the art understand the present invention better, below simply introduce macro base station and Home eNodeB.
At the beginning of the 3G networking, because userbase is little, therefore most of operators select to solve covering problem with grand covering scheme earlier, and then solve capacity problem.Here, so-called grand covering scheme is wide covering, is to adopt outdoor macro base station to cover most outdoor area to stress to solve the problem that improves coverage rate.
Arrived the 3G business development stage, the userbase steady-state growth, after the user increases, a series of problems such as adopt extensive grand covering scheme certainly will cause that the user capacity that inserts is not enough, message transmission rate descends and the user experience sense is bad.Yet the user who just opens the 3G business at the beginning of the 3G networking previously has been accustomed to using data service at a high speed, this moment, extensive grand covering scheme just can't satisfy covering demand, especially the covering demand of high-speed data service in the subscriber household zone of intensive residential block of high-speed data service in the home area well.The new planning if the overlay strategy of adjusting grand covering scheme according to user's covering characteristics is laid equal stress on certainly will cause the cost of investment height, efficiency of investment is low and can't perceives series of problems such as high-value user.Like this, operator is difficult in coverage rate and capacity two aspects and does balance and choice.The introducing Home eNodeB replenishes as macro base station, can do a balance aspect coverage rate and the capacity two.
Wherein, Home eNodeB is used to cover most careat.Introduce Home eNodeB except can reducing cost of investment doing aspect coverage rate and the capacity two balance.Home eNodeB is different from macro base station, it is easy, as to need not a to dispose small base station, when the macro base station that is used to cover most of outdoor area in cooperation uses together, substantially can realize the seamless link of indoor and outdoors and the covering that becomes more meticulous of 3G, thus the advantage of the high-speed data service of performance 3G.And need not grand covering scheme as single employing macro base station extensive style, and design macro base station in advance earlier, then along with userbase, the particularly growth of userbase in the home area, the overlay strategy of the adjusting grand covering scheme new planning of laying equal stress on.Obviously the scheme that adopts Home eNodeB and macro base station to be used can reduce cost of investment greatly than the grand covering scheme of single employing macro base station.
One of core idea of the embodiment of the invention is, in the LTE system, determine the adjacent area target BS (at least one side of described local area source base station and adjacent area target BS is a Home eNodeB) of local area source base station, and between described local area source base station and adjacent area target BS, set up the connection of fixed interface (non-S1 interface) by base-station gateway, in the message that connects, need carry the information that is used for the adjacent area target BS is carried out addressing, in the message of connection response, need carry the information that is used for the source target BS is carried out addressing; Carry out the route of message according to these addressing informations by base-station gateway.
With reference to figure 2, show the flow chart of steps of the base station method of attachment embodiment 1 of a kind of LTE of the present invention system, in embodiments of the present invention, described LTE system comprises base station and base-station gateway, described base-station gateway is connected by fixed interface with each base station respectively, described base station comprises Home eNodeB and macro base station, and present embodiment specifically can may further comprise the steps:
In specific implementation, for reducing development cost as far as possible, described base-station gateway can adopt femto gateway HeNB GW, and the fixed interface that described base-station gateway is connected with each base station can adopt X2 interface.In the prior art, X2 interface only disposes between macro base station eNB, promptly has only between the eNB logically to be connected to each other by X2 interface, can only connect by the S1 interface between Home eNodeB HeNB and MME/S-GW or the HeNB GW, does not have X2 interface between the HeNB.And in embodiments of the present invention, X2 interface can be between HeNB and HeNB GW, and, dispose between eNB and the HeNB GW, HeNB GW can be used for termination or transfer HeNB and HeNB, perhaps, the X2 interface of HeNB and eNB, thereby make HeNB can utilize X2 interface to initiate the handoff procedure of X2 interface among the similar LTE R8, be that HeNB is known when having X2 interface with adjacent HeNB/eNB, can initiate X2 and switch, do not need to want the core net participation, thereby reduce influence, reduce the processing pressure of core net core net node.
With reference to figure 3, show the network architecture schematic diagram of the LTE system of the applied a kind of HeNB of disposing of the embodiment of the invention, in this LTE system, X2 interface is set between the eNB, the S1 interface is set between eNB and the MME/S-GW, and HeNB and eNB can be linked into MME/S-GW by HeNB GW, between eNB and the HeNB GW X2 interface are set, between HeNB and the HeNB GW S1 interface and X2 interface are set, each HeNB synchronization can only link to each other with a HeNB GW.For the embodiment of the invention, described local area source base station can be a certain Home eNodeB HeNB1, and then its adjacent area target BS can be another Home eNodeB HeNB2 or a certain macro base station eNB; Perhaps, described local area source base station can be a certain macro base station eNB1, and then its adjacent area target BS can be a Home eNodeB HeNB2.
As the example in a kind of specific implementation, the neighboring BS relationship between the described base station (the adjacent area target BS of local area source base station) can be by the Operation and Maintenance platform Q﹠amp of LTE system; M is configured when networking rule, can obtain to be used for the adjacent area target BS is carried out first addressing information of addressing based on this configuration, and, be used for the local area source base station is carried out second addressing information of addressing, described first addressing information and second addressing information can be the ID of respective base station or IP address etc.
With reference to figure 4, show the signaling process figure of the base station method of attachment embodiment 2 of a kind of LTE of the present invention system, specifically can comprise the steps:
Step 41, pass through O﹠amp; M is local area source base station HeNB1/eNB1 configuration target neighbor base station HeNB2/eNB2, acquisition is used for HeNB2/eNB2 is carried out the first addressing information target eNB id IE1 of addressing, and, be used for HeNB1/eNB1 is carried out the second addressing information target eNB id IE2 of addressing;
Step 42, HeNB1/eNB1 send X2 connection request message to HeNB GW: X2SETUP REQUEST; HeNB1/eNB1 carries target eNB id IE1 in this message, the adjacent HeNB/eNB that will set up the X2 connection with indication is HeNB2/eNB2;
Step 43, HeNB GW route messages to HeNB2/eNB2 according to target eNBid IE1 after receiving this X2 connection request message;
Step 44, HeNB2/eNB2 return request response to HeNB GW after receiving this X2 connection request message: X2 SETUP RESPONSE; HeNB2/eNB2 carries the target eNB id IE2 that extracts from X2 SETUP REQUEST in message, should pass to HeNB1/eNB1 to indicate this request response;
After step 45, HeNB GW receive this X2 request response, route messages to HeNB1/eNB1 according to target eNBid IE2.
As the example in the another kind of specific implementation, the neighboring BS relationship between the described base station (the adjacent area target BS of local area source base station) can pass through ANR (Automatic Neighbour Relation, Automatic Neighboring Relation) mechanism and set up.The ANR major function is not plan under the situation of adjacent area, report by user terminal UE measurement and to set up the adjacent area automatically, the result that measurement reports based on UE can obtain to be used for the adjacent area target BS is carried out first addressing information of addressing, and, be used for the local area source base station is carried out second addressing information of addressing, perhaps, the result that measurement reports based on UE can be further at Q﹠amp; Described first addressing information of configuration and second addressing information among the M.Described first addressing information and second addressing information can be the ID of respective base station or IP address etc.
With reference to figure 5, show the signaling process figure of the base station method of attachment embodiment 3 of a kind of LTE of the present invention system, specifically can comprise the steps:
Step 51, according to the mechanism of ANR, UE measures the information of reporting neighboring cell target BS HeNB2/eNB2 to local area source base station HeNB1/eNB1, acquisition is used for HeNB2/eNB2 is carried out the first addressing information target eNB id IE1 of addressing, and, be used for HeNB1/eNB1 is carried out the second addressing information target eNB id IE2 of addressing;
Step 52, HeNB1/eNB1 preserve the information of this adjacent area target BS HeNB2/ENB2;
Step 53.HeNB1/eNB1 sends X2 connection request message to HeNB GW: X2SETUP REQUEST; HeNB1/eNB11 carries target eNB id IE1 in this message, the adjacent HeNB/eNB that will set up the X2 connection with indication is HeNB2/eNB2;
Step 54, HeNB GW route messages to target HeNB2/eNB2 according to target eNBid IE1 after receiving this X2 connection request message;
Step 55, HeNB2/eNB2 return request response to HeNB GW after receiving this X2 connection request message: X2 SETUP RESPONSE; HeNB2/eNB2 carries the target eNB id IE2 that extracts from X2 SETUP REQUEST in message, should pass to HeNB1/eNB1 to indicate this request response;
After step 56, HeNB GW receive this X2 request response, route messages to HeNB1/eNB1 according to target eNBid IE2.
Certainly, only as example, those skilled in the art adopt any mode to determine that neighboring BS relationship all is feasible to the method for above-mentioned definite neighboring BS relationship, and the present invention need not this to be limited.
In practice, the configuration parameter of cell base station, as neighboring BS relationship configuration etc., tend to change, for the embodiment of the invention, when the X2 interface configuration parameter of local area source base station changes, can initiate X2 interface config update process by local area source base station HeNB/eNB, particularly, described X2 interface config update process can may further comprise the steps:
Described local area source base station comprises first addressing information and second addressing information of renewal to base-station gateway transmission interface configuration update message in the described interface configuration updating message;
Described base-station gateway routes to corresponding adjacent area target BS according to first addressing information of described renewal with this interface configuration updating message;
Described adjacent area target BS responds described interface configuration updating message, returns and upgrades response message to base-station gateway, comprises second addressing information that extracts from described interface configuration updating message in the described renewal response message;
Described base-station gateway should upgrade response message and route to described local area source base station according to described second addressing information.
With reference to figure 6, show a kind of example of initiating the X2 interface config update by local area source base station HeNB1/eNB1 of the present invention, suppose that in this example the adjacent area target BS of local area source base station HeNB1/eNB1 is updated to HeNB3/eNB3, specifically can comprise the steps:
Step 61, HeNB1/eNB1 are to HeNB GW transmission interface configuration update message: ENBCONFIGURATION UPDATE, and in this message, carry the first addressing information target eNB id IE1 that is used for adjacent area target BS HeNB3/eNB3 is carried out addressing of renewal, this message to be passed to HeNB3/eNB3 for HeNB GW with indication; Simultaneously, in this message, also carried the second addressing information target eNB id IE2 that is used for current HeNB1/eNB1 is carried out addressing;
Step 62, HeNB GW are routed to HeNB3/eNB3 according to target eNB id IE1 with described interface configuration updating message ENB CONFIGURATION UPDATE;
After step 63, HeNB3/eNB3 receive described interface configuration updating message, return the renewal response message: ENB CONFIGURATION UPDATE ACK gives HeNB GW, carries the target eNB id IE2 that extracts from described interface configuration updating message in this message;
Step 64, HeNB GW route messages to HeNB1/eNB1 according to target eNB id IE2.
In order to reduce the message route between HeNB/eNB and the HeNB GW, described first addressing information and second addressing information all can dispose a plurality of.To be HeNB/eNB at X2 connect sets up in process and the X2 config update process, can carry a plurality of Target cells ENB ID list (Base Station Identification tabulation) or, other Henb GW are used for a plurality of Target cells are carried out respectively the IE of addressing.
For example, when HeNB/eNB when sending X2SETUP REQUEST or X2SETUP RESPONSE message to HeNB GW, can in message, carry target eNB id list IE or other addressing informations that a plurality of addressing informations are formed;
Or as, when HeNB/eNB when sending ENB CONFIGURATIONUPDATE or ENB CONFIGURATION UPDATE ACK message to HeNB GW, can in message, carry target eNB id list IE or other addressing informations that a plurality of addressing informations are formed.
The embodiment of the invention mainly is applicable between the HeNB or sets up the process that X2 connects and carries out the X2 config update by HeNB GW between HeNB and the eNB, use the embodiment of the invention, need in message, carry the addressing information of target cell base station, the IE that can carry out addressing to Target cell as Base Station Identification Enb ID, Base Station Identification tabulation Enb ID list or other Henb GW; HeNB GW carries out the route of message according to the addressing information of this target cell base station, to finish the X2 establishment of connection.
Need to prove, for aforesaid each method embodiment, for simple description, so it all is expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not subjected to the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in the specification all belongs to preferred embodiment, and related action and module might not be that the present invention is necessary.
With reference to figure 7, show the structured flowchart of the base station jockey embodiment 1 of a kind of LTE of the present invention system, comprise base station and base-station gateway in the described LTE system, described base-station gateway is connected by fixed interface with each base station respectively, described base station can comprise Home eNodeB and macro base station, wherein, described base station 70 specifically can comprise:
Configuration module 701 is used for determining the adjacent area target BS of local area source base station, obtains to be used for the adjacent area target BS is carried out first addressing information of addressing, and, be used for the local area source base station is carried out second addressing information of addressing; Wherein, at least one side of described local area source base station and adjacent area target BS is a Home eNodeB;
First message sends submodule 702, is used for sending connection request message to base-station gateway, comprises first addressing information and second addressing information in the described connection request message;
The first response submodule 703 is used for described connection request message is responded, and returns request response to base-station gateway, comprises second addressing information that extracts from described connection request message in the described request response message;
Base-station gateway 71 comprises the first via by submodule, is used for according to described first addressing information this connection request message being routed to corresponding adjacent area target BS; And, according to described second addressing information, this request response is routed to described local area source base station.
In specific implementation, described base-station gateway can be femto gateway HeNB GW, and the fixed interface that described base-station gateway is connected with each base station can be X2 interface; Be the present invention relate generally between the Home eNodeB HeNB or Home eNodeB HeNB and macro base station eNB between set up the process that X2 is connected by HeNB GW; In this case, described local area source base station and target neighbor base station can corresponding following three kinds of situations:
First kind: described local area source base station is Home eNodeB HeNB1, and described adjacent area target BS is Home eNodeB HeNB2;
Second kind: described local area source base station is Home eNodeB HeNB1, and described adjacent area target BS is macro base station eNB2;
The third: described local area source base station is macro base station eNB1, and described adjacent area target BS is Home eNodeB HeNB2.
The adjacent area target BS of described local area source base station can be at the Operation and Maintenance platform Q﹠amp of LTE system; Configuration is determined among the M; Can adopt ANR mechanism to determine according to the user terminal UE result that measurement reports at the local area source base station, certainly, only as example, the present invention does not limit this above-mentioned definite method yet.
In a preferred embodiment of the present invention, when the X2 interface configuration parameter of local area source base station changed, described local area source base station can also comprise following submodule:
Second message sends submodule: be used for to base-station gateway transmission interface configuration update message, comprise first addressing information and second addressing information of renewal in the described interface configuration updating message;
Described base-station gateway can also comprise following submodule:
The secondary route submodule is used for first addressing information according to described renewal, and this interface configuration updating message is routed to corresponding adjacent area target BS; And, according to described second addressing information, should upgrade response message and route to described local area source base station;
Described adjacent area target BS can also comprise following submodule:
The second response submodule is used for described interface configuration updating message is responded, and returns and upgrades response message to base-station gateway, comprises second addressing information that extracts from described interface configuration updating message in the described renewal response message.
For reducing the message route between HeNB/eNB and the HeNB GW, described first addressing information can comprise a plurality of; And/or described second addressing information can comprise a plurality of.
In practice, described configuration module can be provided with separately, also can be arranged in the local area source base station.
With reference to figure 8, show the structured flowchart of the base station jockey embodiment 2 of a kind of LTE of the present invention system, the structure chart of described LTE system can be with reference to figure 3, in this LTE system, be provided with macro base station eNB, Home eNodeB HeNB, femto gateway HeNB GW, wherein, described Home eNodeB HeNB, macro base station eNB are connected with femto gateway HeNB GW by X2 interface respectively, and present embodiment specifically can comprise:
Described Home eNodeB HeNB or macro base station eNB can comprise with lower module during as local area source base station 81:
Configuration module 811 is used for determining the adjacent area target BS of local area source base station, obtains to be used for the adjacent area target BS is carried out first addressing information of addressing, and, be used for the local area source base station is carried out second addressing information of addressing; Wherein, when described local area source base station was Home eNodeB HeNB 1, described adjacent area target BS was Home eNodeB HeNB2 or macro base station eNB2; Perhaps, when described local area source base station was macro base station eNB1, described adjacent area target BS was Home eNodeB HeNB2;
First message transmission module 812 is used for sending connection request message to base-station gateway, comprises first addressing information and second addressing information in the described connection request message;
Described Home eNodeB HeNB or macro base station eNB can comprise with lower module during as adjacent area target BS 82:
First respond module 821 is used for described connection request message is responded, and returns request response to base-station gateway, comprises second addressing information that extracts from described connection request message in the described request response message;
Described femto gateway HeNB GW83 comprises with lower module:
First routing module 831 is used for according to described first addressing information this connection request message being routed to corresponding adjacent area target BS; And, according to described second addressing information, this request response is routed to described local area source base station.
As a preferred embodiment of the present invention, if the X2 interface configuration parameter of local area source base station changes, then described Home eNodeB HeNB or macro base station eNB can also comprise with lower module during as local area source base station 81:
Second message transmission module 813: be used for to base-station gateway transmission interface configuration update message, comprise first addressing information and second addressing information of renewal in the described interface configuration updating message;
Described femto gateway HeNB GW83 can also comprise with lower module:
Secondary route module 832 is used for first addressing information according to described renewal, and this interface configuration updating message is routed to corresponding adjacent area target BS; And, according to described second addressing information, should upgrade response message and route to described local area source base station;
Described Home eNodeB HeNB or macro base station eNB can also comprise with lower module during as adjacent area target BS 82:
Second respond module 822 is used for described interface configuration updating message is responded, and returns and upgrades response message to base-station gateway, comprises second addressing information that extracts from described interface configuration updating message in the described renewal response message.
Because device embodiment of the present invention is substantially corresponding to aforesaid method embodiment, so not detailed part in the description of present embodiment can just not given unnecessary details at this referring to the related description in the previous embodiment.
The embodiment of the invention also discloses the base station of a kind of LTE system, specifically can comprise with lower module:
Configuration module is used for determining the adjacent area target BS of local area source base station, obtains to be used for the adjacent area target BS is carried out first addressing information of addressing, and, be used for the local area source base station is carried out second addressing information of addressing; Wherein, when described local area source base station was Home eNodeB HeNB1, described adjacent area target BS was Home eNodeB HeNB2 or macro base station eNB2; Perhaps, when described local area source base station was macro base station eNB1, described adjacent area target BS was Home eNodeB HeNB2;
First message transmission module is used for sending connection request message to base-station gateway, comprises first addressing information and second addressing information in the described connection request message;
First respond module is used for described connection request message is responded, and returns request response to base-station gateway, comprises second addressing information that extracts from described connection request message in the described request response message;
The described configuration module and first message transmission module are called during as the local area source base station in current base station, and described first respond module is called during as the adjacent area target BS in current base station.
In specific implementation, described base-station gateway can be femto gateway HeNB GW, described base station can be connected by X2 interface with femto gateway HeNB GW, and when the X2 interface configuration parameter of local area source base station changed, described base station also comprised with lower module during as the local area source base station:
Second message transmission module: be used for to base-station gateway transmission interface configuration update message, comprise first addressing information and second addressing information of renewal in the described interface configuration updating message;
Described base station also comprises with lower module during as the adjacent area target BS:
Second respond module is used for described interface configuration updating message is responded, and returns and upgrades response message to base-station gateway, comprises second addressing information that extracts from described interface configuration updating message in the described renewal response message.
The embodiment of the invention also discloses a kind of femto gateway, specifically can comprise with lower module:
First routing module is used for according to first addressing information that is used for the adjacent area target BS is carried out addressing, and the connection request message that the local area source base station is sent routes to corresponding adjacent area target BS; And according to second addressing information that is used for the local area source base station is carried out addressing, the request response that the adjacent area target BS is sent routes to described local area source base station.
In practice, described femto gateway HeNB GW can be connected by X2 interface with the base station, if the X2 interface configuration parameter of local area source base station changes, then described femto gateway HeNB GW can also comprise with lower module:
The secondary route module is used for first addressing information according to described renewal, and the interface configuration updating message that the local area source base station is sent routes to corresponding adjacent area target BS; And according to second addressing information that extracts from described interface configuration updating message, the renewal response message that the adjacent area target BS is sent routes to described local area source base station.Because present embodiment is corresponding to the description of aforesaid device embodiment appropriate section, so not detailed part in the description of present embodiment can just repeat no more at this referring to the related description in the previous embodiment.
Need to prove, among the present invention, relational terms such as first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint and have the relation of any this reality or in proper order between these entities or the operation.And, term " comprises " or its any other variant is intended to contain comprising of nonexcludability, thereby make and comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or also be included as this process, method, article or equipment intrinsic key element.Do not having under the situation of more restrictions, the key element that limits by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
Need to prove that at last the form that the method in the embodiment of the invention can software function module realizes, and this software function module can be stored in also in the computer read/write memory medium as production marketing independently or when using.The above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.
Each functional unit in the embodiment of the invention can be integrated in the processing module, also can be that the independent physics in each unit exists, and also can be integrated in the module two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, also can adopt the form of software function module to realize.If described integrated module realizes with the form of software function module and during as independently production marketing or use, also can be stored in the computer read/write memory medium.The above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.
More than to the method for attachment between a kind of Home eNodeB provided by the present invention, between Home eNodeB and the macro base station based on the LTE system, jockey between a kind of Home eNodeB, between Home eNodeB and the macro base station based on the LTE system, a kind of LTE system that disposes Home eNodeB, and, a kind of femto gateway is described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (17)
1. the base station method of attachment of a LTE system is characterized in that, comprises base station and base-station gateway in the described LTE system, and described base-station gateway is connected by fixed interface with each base station respectively, and described method comprises:
Determine the adjacent area target BS of local area source base station, obtain to be used for the adjacent area target BS is carried out first addressing information of addressing, and, be used for the local area source base station is carried out second addressing information of addressing; Wherein, at least one side of described local area source base station and adjacent area target BS is a Home eNodeB;
Described local area source base station sends connection request message to base-station gateway, comprises first addressing information and second addressing information in the described connection request message;
Described base-station gateway routes to corresponding adjacent area target BS according to described first addressing information with this connection request message;
Described adjacent area target BS responds described connection request message, returns request response to base-station gateway, comprises second addressing information that extracts from described connection request message in the described request response message;
Described base-station gateway routes to described local area source base station according to described second addressing information with this request response.
2. the method for claim 1 is characterized in that, described base-station gateway is femto gateway HeNB GW, and the fixed interface that described base-station gateway is connected with each base station is an X2 interface;
Described local area source base station is Home eNodeB HeNB1, and described adjacent area target BS is Home eNodeB HeNB2;
Perhaps, described local area source base station is Home eNodeB HeNB1, and described adjacent area target BS is macro base station eNB2;
Perhaps, described local area source base station is macro base station eNB1, and described adjacent area target BS is Home eNodeB HeNB2.
3. method as claimed in claim 2 is characterized in that, the adjacent area target BS of described local area source base station is at the Operation and Maintenance platform Q﹠amp of LTE system; Configuration is determined among the M.
4. method as claimed in claim 2 is characterized in that, the adjacent area target BS of described local area source base station is determined according to the user terminal UE result that measurement reports at the local area source base station.
5. method as claimed in claim 2 is characterized in that, also comprises: the following steps of carrying out when the X2 interface configuration parameter of local area source base station changes:
Described local area source base station comprises first addressing information and second addressing information of renewal to base-station gateway transmission interface configuration update message in the described interface configuration updating message;
Described base-station gateway routes to corresponding adjacent area target BS according to first addressing information of described renewal with this interface configuration updating message;
Described adjacent area target BS responds described interface configuration updating message, returns and upgrades response message to base-station gateway, comprises second addressing information that extracts from described interface configuration updating message in the described renewal response message;
Described base-station gateway should upgrade response message and route to described local area source base station according to described second addressing information.
6. as claim 3,4 or 5 described methods, it is characterized in that described first addressing information comprises a plurality of; And/or described second addressing information comprises a plurality of.
7. method as claimed in claim 6 is characterized in that, the ID that described first addressing information is the local area source base station and/or the IP address of local area source base station, the ID that described second addressing information is the adjacent area target BS and/or the IP address of adjacent area target BS.
8. the base station jockey of a LTE system is characterized in that, described device comprises several base stations and base-station gateway, and described base-station gateway is connected by fixed interface with each base station respectively, and wherein, described base station comprises:
Configuration module is used for determining the adjacent area target BS of local area source base station, obtains to be used for the adjacent area target BS is carried out first addressing information of addressing, and, be used for the local area source base station is carried out second addressing information of addressing; Wherein, at least one side of described local area source base station and adjacent area target BS is a Home eNodeB;
First message sends submodule, is used for sending connection request message to base-station gateway, comprises first addressing information and second addressing information in the described connection request message;
The first response submodule is used for described connection request message is responded, and returns request response to base-station gateway, comprises second addressing information that extracts from described connection request message in the described request response message;
Described base-station gateway comprises:
The first via is used for according to described first addressing information this connection request message being routed to corresponding adjacent area target BS by submodule; And, according to described second addressing information, this request response is routed to described local area source base station.
9. device as claimed in claim 8 is characterized in that, described base-station gateway is femto gateway HeNB GW, and the fixed interface that described base-station gateway is connected with each base station is an X2 interface;
Described local area source base station is Home eNodeB HeNB1, and described adjacent area target BS is Home eNodeB HeNB2;
Perhaps, described local area source base station is Home eNodeB HeNB1, and described adjacent area target BS is macro base station eNB2;
Perhaps, described local area source base station is macro base station eNB1, and described adjacent area target BS is Home eNodeB HeNB2.
10. device as claimed in claim 9 is characterized in that, the adjacent area target BS of described local area source base station is at the Operation and Maintenance platform Q﹠amp of LTE system; Configuration is determined among the M.
11. device as claimed in claim 9 is characterized in that, the adjacent area target BS of described local area source base station is determined according to the user terminal UE result that measurement reports at the local area source base station.
12. device as claimed in claim 9 is characterized in that, when the X2 interface configuration parameter of local area source base station changed, described base station also comprised:
Second message sends submodule: be used for to base-station gateway transmission interface configuration update message, comprise first addressing information and second addressing information of renewal in the described interface configuration updating message;
The second response submodule is used for described interface configuration updating message is responded, and returns and upgrades response message to base-station gateway, comprises second addressing information that extracts from described interface configuration updating message in the described renewal response message;
Described base-station gateway also comprises:
The secondary route submodule is used for first addressing information according to described renewal, and this interface configuration updating message is routed to corresponding adjacent area target BS; And, according to described second addressing information, should upgrade response message and route to described local area source base station.
13., it is characterized in that described first addressing information comprises a plurality of as claim 10,11 or 12 described devices; And/or described second addressing information comprises a plurality of.
14. the base station in the LTE system is characterized in that, comprising:
Configuration module is used for determining the adjacent area target BS of local area source base station, obtains to be used for the adjacent area target BS is carried out first addressing information of addressing, and, be used for the local area source base station is carried out second addressing information of addressing; Wherein, when described local area source base station was Home eNodeB HeNB1, described adjacent area target BS was Home eNodeB HeNB2 or macro base station eNB2; Perhaps, when described local area source base station was macro base station eNB1, described adjacent area target BS was Home eNodeB HeNB2;
First message transmission module is used for sending connection request message to base-station gateway, comprises first addressing information and second addressing information in the described connection request message;
First respond module is used for described connection request message is responded, and returns request response to base-station gateway, comprises second addressing information that extracts from described connection request message in the described request response message;
The described configuration module and first message transmission module are called during as the local area source base station in current base station, and described first respond module is called during as the adjacent area target BS in current base station.
15. base station as claimed in claim 14, it is characterized in that, described base-station gateway is femto gateway HeNB GW, described base station is connected by X2 interface with femto gateway HeNB GW, when the X2 interface configuration parameter of local area source base station changed, described base station also comprised with lower module during as the local area source base station:
Second message transmission module: be used for to base-station gateway transmission interface configuration update message, comprise first addressing information and second addressing information of renewal in the described interface configuration updating message;
Described base station also comprises with lower module during as the adjacent area target BS:
Second respond module is used for described interface configuration updating message is responded, and returns and upgrades response message to base-station gateway, comprises second addressing information that extracts from described interface configuration updating message in the described renewal response message.
16. a femto gateway is characterized in that, comprising:
First routing module is used for according to first addressing information that is used for the adjacent area target BS is carried out addressing, and the connection request message that the local area source base station is sent routes to corresponding adjacent area target BS; And according to second addressing information that is used for the local area source base station is carried out addressing, the request response that the adjacent area target BS is sent routes to described local area source base station.
17. femto gateway as claimed in claim 16 is characterized in that, described femto gateway HeNB GW is connected by X2 interface with the base station; When the X2 interface configuration parameter of local area source base station changed, described femto gateway also comprised with lower module:
The secondary route module is used for first addressing information according to described renewal, and the interface configuration updating message that the local area source base station is sent routes to corresponding adjacent area target BS; And according to second addressing information that extracts from described interface configuration updating message, the renewal response message that the adjacent area target BS is sent routes to described local area source base station.
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