CN1214663C - Connecting control equipment between base stations and connecting control method thereof - Google Patents
Connecting control equipment between base stations and connecting control method thereof Download PDFInfo
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- CN1214663C CN1214663C CN 02121577 CN02121577A CN1214663C CN 1214663 C CN1214663 C CN 1214663C CN 02121577 CN02121577 CN 02121577 CN 02121577 A CN02121577 A CN 02121577A CN 1214663 C CN1214663 C CN 1214663C
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Abstract
The present invention relates to a connecting control device and a connecting control method thereof among base stations. The connecting control device comprises a connecting control unit and a transmission resource management unit, wherein the connecting control unit is used for the responsibility for the relative control functions of the signaling connection and the signaling transmission, and the transmission resource management unit is used for the responsibility for the functions of the state collection and the control of transmission layer resources of interfaces among base stations. The connecting control method among base stations comprises the following steps: establishing signaling connection between a source base station and a target base station; transmitting parameters through the signaling connection to establish the transmission loading between the base stations; after that monitoring the corresponding signaling connection and the transmission loading by the connecting control unit and the transmission resource management unit; releasing the corresponding signaling connection and the transmission loading when the process is over. The present invention avoids generating the collision on the utilization of transmitting resources in the process of the connection among base stations, and ensures the timely and the accurate transmission of the signaling and the data among base stations.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to the connection control method between the base station in a kind of wireless network.
Background technology
Along with radio network technique and professional development, the wireless interface technology that is fit to high-speed data communication in the mobile communication system further shortens the time requirement of wireless network processing signaling more and more towards the adaptive direction development.NB (base station) will stop increasing and the closely-related signaling of wave point physical layer, control and the relevant process of professional transmission, and bear the radio resource management function that part is separated from RNC (radio network controller).
In addition, the introducing of IP (Internet protocol) transmission technology in wireless network makes the structure of wireless network no longer present tree-like annexation, each network element in the wireless network directly hangs on the edge router of IP network, data flow identifies the data flow on the interface with " UDP (User Datagram Protoco (UDP)) port numbers+IP address " on Iub (between base station and the core net) interface, thereby make and set up direct transmission channel between NB and the NB and become possibility, may even provide in the direct communication of wireless network layer between the NB.
This logic interfacing that realizes direct communication between NB is called as the IuNB interface, and the IuNB interface provides two-way data and controls the transmission of signaling between two NB nodes.As shown in Figure 1, the agreement of IuNB interface is divided into chain of command agreement and user plane protocol.Wherein the chain of command agreement is used for transmitting resource management and the control signaling between the NB, and user plane protocol then is used for transmitting user data.
Realize communicating by letter by the IuNB interface between user terminal and the wireless network, a connection relevant be need on the IuNB interface, set up, data relevant and the transmission of signaling on the chain of command on the IuNB interface and user's face are used to control with this user terminal with this user terminal.But also there is not a kind of control method that connects at the IuNB interface at present, to adapt to transmission based on signaling between IuNB interface base station and base station and data.
Summary of the invention
The invention provides the connection control method between a kind of base station, be used between two base stations of wireless network, setting up IP-based signaling bear and transmission bearer, avoid the conflict on transfer resource uses in the inter-base station interface connection procedure, the signaling between assurance base station and the base station and the transmission promptly and accurately of data.
Connection control method between the base station among the present invention, described method has been utilized:
Connect control unit: the entity that chain of command function on base station and core net interface and the IuNB interface is provided;
Transport resource management unit: provide transport layer state of resources on the IuNB interface to collect and the entity of controlled function;
Comprise the steps:
The connection control unit of a, source base station receives connection request message, and sets up the signaling connection by transport resource management unit according to current transfer resource notice connection control unit;
B, source base station connect the transmission relevant parameters with target BS by the signaling that is connected between control unit, and set up transmission bearer between the base stations;
C, set up that signaling connects and the base station between data transmission procedure in, connect control unit and corresponding signaling is connected monitor;
D, in the data transmission procedure of setting up between transmission bearer and base station, transport resource management unit is monitored corresponding transmission bearer;
When the data transmission procedure between e, base station finished, the connection control unit discharged corresponding signaling with transport resource management unit and is connected and transmission bearer.
Described step a comprises:
The connection control unit of a1, source base station receives connection request message, and the notification transmission rm-cell;
A2, transport resource management unit determine whether to set up corresponding connection according to current transfer resource;
If a3 can connect, then notice connect control unit set up with target BS between signaling be connected;
If a4 cannot connect, then refuse this connection request.
Described step a3 comprises:
The connection control unit of a31, source base station sends signaling connection control protocol SCCP connection request message to the connection control unit of target BS;
The connection control unit of a32, target BS determines whether to set up the SCCP that is connected between control unit with source base station and connects;
Connect if a33 can set up SCCP, then the connection control unit feedback SCCP to source base station connects acknowledge message;
If cannot setting up SCCP, a34 connects, then to the connection control unit feedback SCCP of source base station connection refused message.
Described step b comprises:
The transport resource management unit of b1, source base station is this connection request allocation of transmission resources, and sends transmission bearer connection request message to the transport resource management unit of target BS;
The transport resource management unit of b2, target BS determines whether to set up corresponding transmission bearer according to current transfer resource;
If b3 can set up corresponding transmission bearer, then be this transmission bearer allocation of transmission resources, and the transport resource management unit of notification source base station;
If b4 cannot set up corresponding transmission bearer, the transport resource management unit of transmission bearer connection request failure notification source base station then.
The transmission bearer connection request message of described step b1 comprises:
The IP address of source base station;
Source base station is the port numbers of the reception data of transmission bearer distribution;
Source base station is to the quality of service QoS and the resource requirement of transmission bearer.
Described step c comprises:
The control unit that is connected of c1, source base station and target BS judges whether to receive the information that causes the signaling connection termination, if receive the information that signaling connects that stops, and execution in step c2 then, otherwise, keep this signaling to connect;
C2, stop this signaling and connect, and with the information notice of this signaling connection termination and the base station of this signaling join dependency;
C3, receive the information of signaling connection termination with the base station of this signaling join dependency after, stop being connected with the signaling of this signaling join dependency;
C4, judge whether to have distributed transmission bearer,, then discharge corresponding transmission bearer the release signaling connection time if distributed transmission bearer for this signaling connects and is connected with the signaling of this signaling join dependency, otherwise only release signaling connection.
Described step c3 comprises:
C31, receive the information of signaling connection termination, starts the termination signaling connection timer of the signaling connection relevant with this signaling with the base station of this signaling join dependency;
C32, judge whether timer is overtime,, then stop relevant signaling and connect if overtime, otherwise, keep relevant signaling to connect.
Described steps d comprises:
D1, set up in the process at transmission bearer, the transport resource management unit of source base station judges whether to receive that the signaling that the connection control unit sends connects abnormity notifying, if receive, then stop to send the message that transmission bearer is set up request to target BS, and be released to the transfer resource that this transmission bearer distributes, otherwise, execution in step d2;
The control unit that is connected of d2, source base station and target BS judges whether to receive notice about the transmission bearer property abnormality of the transmission bearer set up, if receive, and execution in step d3, otherwise, execution in step d4;
D3, stop at the transfer of data on this transmission bearer;
D4, judge whether occur conflict between the data transmission service on this transmission bearer, data transmission service on this transmission bearer promptly whether occurs and fail in time by inter-base station interface, if, execution in step d5 then, otherwise, execution in step d2;
D5, handle the conflicting data transport service occurring.
Described steps d 3 comprises:
D31, the data transmission service on the transmission bearer of transmission bearer property abnormality is switched on other transmission bearer;
D32, stop at the transfer of data on the transmission bearer of transmission bearer property abnormality.
Described steps d 5 is: adjust the priority of this data transmission service, be about to the priority of this data transmission service on this transmission bearer and improve.
Described steps d 5 is: the conflicting data transport service will occur and switch on other transmission bearer.
Described data transmission service is switched on other transmission bearer is: this data transmission service is switched on the newly-established transmission bearer.
Described data transmission service is switched on other transmission bearer is: this data transmission service is switched on the transmission bearer that has existed.
Described the mode of data transmission service with synchronous switching switched on other transmission bearer, comprising:
F1, definite transmission bearer of taking over this data transmission service;
F2, this data transmission service is transmitted on current transmission bearer and the new transmission bearer of determining simultaneously, and receiving terminal receives the data that receive on the current transmission bearer, abandon the data that receive on the new transmission bearer of determining;
F3, receiving terminal judge whether the transmission bearer indication message of receiving that the source end is sent if receive, then to abandon the data that receive on the current transmission bearer, receive the data that receive on the new transmission bearer of determining, otherwise execution in step f2.
Described the mode of data transmission service by asynchronous switching switched on other transmission bearer, comprising:
F4, definite transmission bearer of taking over this data transmission service;
The transmission bearer that f5, receiving terminal will newly be determined is as current transmission bearer, and begins to receive data service from this transmission bearer, and no longer receives the data that transmit on the original transmission bearer.
Described step e comprises:
The connection control unit of e1, source base station sends the SCCP connection release message to the connection control unit of target BS;
E2, source base station and target BS discharge respectively that this signaling is connected the signaling bear resource;
The transport resource management unit of e3, source base station receives the request that discharges this transmission bearer, and sends the message that request discharges this transmission bearer to the transport resource management unit of target BS;
E4, source base station and target BS are released to this transmission bearer respectively and divide other transfer resource.
By technique scheme as can be seen, the present invention has realized setting up IP-based signaling bear and transmission bearer by inter-base station interface between the base station in wireless network.And by to connecting the appropriate design of control method between the base station, avoided inter-base station interface that conflict in the transfer resource use takes place in connection procedure among the present invention, guaranteed the signaling between base station and the base station and the transmission promptly and accurately of data.
Description of drawings
The protocol stack schematic diagram that Fig. 1 adopts for the IuNB interface;
Fig. 2 is the connection control device of base station and the link control procedure schematic diagram of IuNB interface;
Fig. 3 is the flow chart A of the connection control method between the base station;
Fig. 4 is the flow chart B of the connection control method between the base station;
Fig. 5 is the flow chart C of the connection control method between the base station;
Fig. 6 sets up the process schematic diagram that signaling is connected between source base station and target BS.
Embodiment
The specific embodiment of the present invention is as follows in conjunction with the accompanying drawings:
In order to realize setting up connection between the base station by inter-base station interface, and the connection of setting up controlled, need in the base station, increase the connection control device that is provided with between the base station, the structure of this device is as shown in Figure 2, comprise connecting control unit and transport resource management unit, wherein:
Connect control unit: being used for being responsible for connecting the controlled function relevant with the signaling transmission with signaling, is the chain of command functional entity that NB connects Iub (between base station and core net) interface and IuNB interface; The connection control unit of Serving-NB (source base station) receives the connectivity request message that transmits from Iub interface, and the feasibility of judgement signaling connection, control is set up signaling bear (signaling is connected) with the IuNB interface of Shift-NB (target BS), release signaling connects and signaling connection status monitor procedure, and signaling connection status monitor procedure comprises the exception handling procedure that signaling is connected;
Transport resource management unit: be used for being responsible for the transport layer state of resources collection of IuNB interface and the function of control, can determine corresponding resource decision according to the parameter and the current transfer resource of connection request, be the transfer resource that signaling connects and the transmission bearer distribution is suitable; The process of the foundation of transmission bearer between transport resource management unit control base station, the corresponding transfer resource of release transmission bearer; And can in connection procedure, monitor the state of IuNB interface transmission bearer, and guarantee to connect the transmission performance of specified data transmission service by measures such as transmission bearer switching, conflict eliminations.
As shown in Figure 3, the connection control method based on the IuNB interface specifically comprises between the base station:
Step 1: the connection control unit of source base station receives connection request message, requires to set up an IuNB about UE (user) and connects;
Step 2: the transport resource management unit of source base station judges according to the parameter of carrying in the connection request message whether current transfer resource satisfies the new requirement that connects, if satisfy the new requirement that connects, then execution in step 4, otherwise, execution in step 3;
Step 3: refuse this connection request;
Step 4: be connected in the signaling of source base station with the upright IuNB interface of target capital construction by connecting control unit;
The signaling of IuNB interface control plane connects by SCCP (signaling connection control protocol) connection carries, when communicating by letter between UE and the network must be passed through two NB exchange messages, and when not connecting between these two NB about the SCCP of this UE, just need between these two NB, set up a new SCCP and connect, set up the process of SCCP connection and initiate by Serving-NB; As shown in Figure 4, the a1 among the figure is the source sign that connects, the target identification of a2 for connecting, and x is the SCCP connection identifier in the source base station, and y is the SCCP connection identifier in the target BS, and the detailed process of then setting up the SCCP connection is as follows:
Step 41:Serving-NB sends " SCCP connection request " message to Shift-NB, wherein comprises the SCCP sign that Serving-NB distributes for this connection; And the content that in the data field (data) of message, may comprise BBAP (Base-station to Base-station ApplicationPart, applying portion between the base station) message that connects of request;
Step 42:Shift-NB judges whether to set up corresponding SCCP and connects, if can, execution in step 43, otherwise, execution in step 44;
Step 43:Shift-NB determines to set up above-mentioned SCCP and connects, and sends " SCCP connects an affirmation " message to Serving-NB, wherein comprises the SCCP sign that Shift-NB connects distribution for this reason; In the data field of this message, can also comprise the relevant content of BBAP message that connects with former request in addition;
Step 44:Shift-NB determines to set up above-mentioned SCCP and connects, and to the message of Serving-NB feedback one " SCCP connects refusal ", wherein comprise the SCCP sign that Serving-NB sends, can also in data field, comprise the relevant content of BBAP message that connects with former request;
Step 5: be connected to transmit by the signaling of having set up between source base station and the target BS and set up the required parameter of transmission bearer, and set up corresponding transmission bearer;
When being connected between a UE and the network need be by IuNB interface transmitting user data, need to set up the transmission bearer of user's face between Serving-NB and the Shift-NB, the signaling that is used for the control transmission carrying is to connect by the signaling of having set up between Serving-NB and the Shift-NB to transmit;
The IuNB interface can adopt following principle to the resource distribution of transmission bearer: the data flow that belongs to a UE all is mapped on the same transmission bearer in the ordinary course of things to be transmitted, that is: the Frame that is produced by the DCH that belongs to same UE (dedicated channel), CPCH (CPCH), RACH (Random Access Channel), FACH (forward access channel), DSCH (DSCH Downlink Shared Channel) and PCH (paging channel) data flow can be transmitted on same IuNB transmission bearer; Different UE is the different transmission bearer of correspondence on the IuNB interface.Under special circumstances, when for example a plurality of data flow of a UE need be transmitted with different priority, can on the IuNB interface, set up a plurality of transmission bearers on the IuNB interface for this UE;
The transmission bearer of IuNB interface all is two-way, promptly comprise two Bearer Channels that direction is opposite in a transmission bearer, be used for transmit data frames and control information thereof simultaneously between two NB, each NB is that the resource that every carrying distributes is the FPDP of a pair of input, output (In, Out);
When a connection request has comprised the transmission requirement of user data, connect control unit and need solicit the suggestion of transport resource management unit, transport resource management unit is according to the parameter of transmission requirement, current resource behaviour in service is estimated, if current transfer resource pond has enough resources to support this connection, then notify connection control function to permit inserting, otherwise, this connection request refused; The process of specifically setting up of the transmission bearer between the base station is as follows:
The new bearer Resources allocation of transport resource management unit among the step 51:Serving-NB for being about to set up comprises a pair of FPDP by the parameter configuration of connection request, as In-1 and Out-1;
Step 52: after having finished the preparation that transmission bearer sets up, Serving-NB will set up parameter that transmission bearer the needs BBAP signaling by the IuNB interface and send Shift-NB to, and the parameter that setting up transmission bearer needs comprises:
The IP address of transport layer address: Serving-NB;
The port numbers of the reception data that bearing association sign: Serving-NB distributes for the transmission bearer that will set up, i.e. In-1;
QoS and resource requirement: Serving-NB is to the feature request of the transmission bearer that will set up;
Above-mentioned parameter comprises at the transmittance process of IuNB interface:
Step 521: the wireless network layer that is submitted to the Serving-NB end by the transport layer of Serving-NB end earlier;
Step 522: reach the Shift-NB end with the BBAP signaling of IuNB interface at wireless network layer;
Step 523: the transport network layer that parameter is handed down to the Shift-NB end by the wireless network layer of Shift-NB end;
For wireless network layer realization technology and the transport network layer that makes the IuNB interface keeps independent, above-mentioned parameter is transparent to wireless network layer in the transmission course of IuNB interface, that is, wireless network layer only is responsible for transmitting these parameters, and it is not carried out any explanation; Interpretation process to these parameters is the transport network layer of holding at Shift-NB; Corresponding transport network layer functional entity promptly is the transmission resource management function among the figure two;
After the transport resource management unit of step 53:Shift-NB is received the foundation request of transmission bearer, judge whether current transfer resource situation can provide the transfer resource of setting up this transmission bearer; If the transfer resource of setting up this transmission bearer can be provided, then execution in step 54, otherwise, execution in step 55;
Step 54: distribute a pair of FPDP by the specified parameter of request, as In-2 and Out-2, the In-1 that transmits together with former request of the Shift-NB port numbers In-2 that will be used for receiving data sends Serving-NB to by the success response message of above-mentioned BBAP signaling then, like this, by two unidirectional Bearer Channels (In-1 → Out-2) and (transmitted in both directions of In-2 → Out-1) forms is carried and just generated.
Step 55: if Shift-NB can not provide all or part of resource of setting up this carrying, for example can not distribute In-2 or Out-2 port on request, then use the failure response message informing Serving-NB of above-mentioned BBAP signaling, wherein comprise the In-1 parameter of sending in the former request message;
Step 56: before any data of transmission, Serving-NB and Shift-NB will carry out synchronously transmission bearer earlier, i.e. the parameter of the newly-built transmission bearer of initialization, as set initial time of reception window;
The running status of step 6:NB monitoring signaling bear and transmission bearer, and when appearance is unusual, be correspondingly processed;
Wherein, connection is that the monitoring of signaling bear is for signaling: when the BBAP corresponding to some user UE receives " user-out-of-service (user withdraws from service) " information or " signalling-point-inaccessible (signal can't insert) " information, if " SCCP connection request " process with Shift-NB of carrying out of source base station then stops to send this message.And the NB of notice and this user's SCCP join dependency; When relevant NB receives about " user-out-of-service " information of certain UE or " signalling-point-inaccessible " information, then can start a timer, and when timer expiry, discharge among the NB and all relevant SCCP connections of unusual UE among this unusual NB.
If one is being carried out or distributed the BBAP of private resource to receive " SCCP connects release ", " timer expiry " or message such as " SCCP connect refusal ", then Serving-NB and Shift-NB be the upper layer application process of abandoning respectively with this SCCP join dependency (the BBAP process that promptly belongs to this UE), and discharge as early as possible having distributed to the resource that this SCCP connects among the NB.
Next is the monitoring to transmission bearer:
In the process of setting up at transmission bearer, transport resource management unit receives from connecting the unusual notice of signaling connection that control unit transmits, stop to send the message that transmission bearer is set up request immediately, and discharge the resource of having distributed for this carrying among the Serving-NB.
In the transmission bearer running, if when controlling this carrying and going up the Frame Protocol control procedure of transfer of data and find that load-carrying properties are not normal, the probability reduction that for example the Frame number of retransmissions oversteps the extreme limit, Frame arrives on time etc., the Frame Protocol control procedure will be pointed out " transmission bearer is unusual "; Transport resource management unit can be selected the existing normally carrying of a performance then, a perhaps newly-built new transmission bearer, and the Business Stream that will carry unusually switches on the new transmission bearer then.
When the operation of transmission bearer was handled in normal performance state, the conflict between the Business Stream also may appear; This is that Business Stream has different qos requirements because the different business stream of same UE is multiplexed on the transmission bearer of same IuNB interface, and the queuing in same carrying sends and may cause the Frame of some Business Stream can not pass through the IuNB interface in time; Under the situation of this service conflict, transport resource management unit can adopt following several solution: first kind is the priority of adjusting Business Stream, the priority of the Business Stream of the urgent transmission of current needs is improved, and the Frame that this Business Stream produces just can preferentially pass through transmission bearer; Second method is the partial service stream that clashes to be adjusted on the different transmission bearer that belongs to same UE send, can newly-built transmission bearer in the time of necessary, to alleviate the Business Stream pressure in the existing carrying; Can after eliminating, conflict be released for the transmission bearer of in the Business Stream conflict process, setting up.
Step 7: judge whether need to change on the IuNB interface transmission bearer corresponding to this connection, if desired, execution in step 8, otherwise, execution in step 6;
Step 8: as required existing transmission bearer is switched on the new transmission bearer, promptly when transport resource management unit finds that the IuNB transmission bearer of a certain UE correspondence can not provide the transmission performance of appointment, data transmission service on this transmission bearer can be switched to a new transmission bearer or one and meet on the existing transmission bearer of performance requirement and transmit, the handoff procedure of transmission bearer comprises:
Step 81: determine new transmission bearer, new transmission bearer can be newly-established transmission bearer, also can be a selected existing transmission bearer;
Step 82: transmitting user data simultaneously on the transmission bearer of the current use of this UE and the new transmission bearer of determining, and the data in situ that transmits on the transmission bearer that receiving terminal NB will newly determine abandons, and only the user data on the transmission bearer of current use is carried out normal process;
Step 83: receiving terminal NB judges whether to receive that the transmission bearer that transmitting terminal transmits switches indication signaling, if receive, then execution in step 84, otherwise, execution in step 82;
Step 84: after receiving the indication signaling of transmission bearer switching, receiving terminal NB will only handle the user data that receives on the new transmission bearer of determining, then abandon for the data on the transmission bearer that uses before this;
Step 85: discharge original transmission bearer;
Step 81 to step 85 is synchronous transmission bearer handoff procedure; The handoff procedure of transmission bearer can also be asynchronous transmission bearer handoff procedure, asynchronous transmission carrying handoff procedure is: after determining new transmission bearer, receiving terminal NB just handles the user data on the new transmission bearer of determining immediately, and the user data on original transmission bearer is abandoned;
Step 9: behind the knot of the transfer of data on transmission bearer process bundle, discharge the transmission bearer resource of relevant IuNB interface;
Receive the request of certain transmission bearer of release when the transport resource management unit of Serving-NB after, just send the BBAP signaling that requires to discharge the respective transmissions carrying to Shift-NB; Then, the transmission bearer resource that Serving-NB and Shift-NB are released to this transmission bearer respectively and are distributed comprises In and Out port numbers.
Step 10: when the connection procedure of user on the IuNB interface finishes, discharge corresponding with it signaling connection resource;
When the NB decision of initiation SCCP connection no longer needs a SCCP to connect, can discharge this signaling and connect; Dispose procedure is: send " SCCP connects a release " message by Serving-NB to Shift-NB; Serving-NB is released to this signaling respectively with Shift-NB and is connected the signaling bear resource of being distributed, and identifies as SCCP etc.;
When the SCCP connection of user on the IuNB interface is released, also will be released with this user-dependent transmission bearer on this IuNB interface, dispose procedure is referring to step 9.
Claims (16)
1, the connection control method between a kind of base station is characterized in that, described method has been utilized:
Connect control unit: the entity that chain of command function on base station and core net interface and the IuNB interface is provided;
Transport resource management unit: provide transport layer state of resources on the IuNB interface to collect and the entity of controlled function;
It comprises the steps:
The connection control unit of a, source base station receives connection request message, and sets up the signaling connection by transport resource management unit according to current transfer resource notice connection control unit;
B, source base station connect the transmission relevant parameters with target BS by the signaling that is connected between control unit, and set up transmission bearer between the base stations;
C, set up that signaling connects and the base station between data transmission procedure in, connect control unit and corresponding signaling is connected monitor;
D, in the data transmission procedure of setting up between transmission bearer and base station, transport resource management unit is monitored corresponding transmission bearer;
When the data transmission procedure between e, base station finished, the connection control unit discharged corresponding signaling with transport resource management unit and is connected and transmission bearer.
2, the connection control method between base station according to claim 1 is characterized in that described step a comprises:
The connection control unit of a1, source base station receives connection request message, and the notification transmission rm-cell;
A2, transport resource management unit determine whether to set up corresponding connection according to current transfer resource;
If a3 can connect, then notice connect control unit set up with target BS between signaling be connected;
If a4 cannot connect, then refuse this connection request.
3, the connection control method between base station according to claim 2 is characterized in that described step a3 comprises:
The connection control unit of a31, source base station sends signaling connection control protocol SCCP connection request message to the connection control unit of target BS;
The connection control unit of a32, target BS determines whether to set up the SCCP that is connected between control unit with source base station and connects;
Connect if a33 can set up SCCP, then the connection control unit feedback SCCP to source base station connects acknowledge message;
If cannot setting up SCCP, a34 connects, then to the connection control unit feedback SCCP of source base station connection refused message.
4, the connection control method between base station according to claim 1 is characterized in that described step b comprises:
The transport resource management unit of b1, source base station is this connection request allocation of transmission resources, and sends transmission bearer connection request message to the transport resource management unit of target BS;
The transport resource management unit of b2, target BS determines whether to set up corresponding transmission bearer according to current transfer resource;
If b3 can set up corresponding transmission bearer, then be this transmission bearer allocation of transmission resources, and the transport resource management unit of notification source base station;
If b4 cannot set up corresponding transmission bearer, the transport resource management unit of transmission bearer connection request failure notification source base station then.
5, the connection control method between base station according to claim 4 is characterized in that the transmission bearer connection request message of described step b1 comprises:
The IP address of source base station;
Source base station is the port numbers of the reception data of transmission bearer distribution;
Source base station is to the quality of service QoS and the resource requirement of transmission bearer.
6, the connection control method between base station according to claim 1 is characterized in that described step c comprises:
The control unit that is connected of c1, source base station and target BS judges whether to receive the information that causes the signaling connection termination, if receive the information that signaling connects that stops, and execution in step c2 then, otherwise, keep this signaling to connect;
C2, stop this signaling and connect, and with the information notice of this signaling connection termination and the base station of this signaling join dependency;
C3, receive the information of signaling connection termination with the base station of this signaling join dependency after, stop being connected with the signaling of this signaling join dependency;
C4, judge whether to have distributed transmission bearer,, then discharge corresponding transmission bearer the release signaling connection time if distributed transmission bearer for this signaling connects and is connected with the signaling of this signaling join dependency, otherwise only release signaling connection.
7, the connection control method between base station according to claim 6 is characterized in that described step c3 comprises:
C31, receive the information of signaling connection termination, starts the termination signaling connection timer of the signaling connection relevant with this signaling with the base station of this signaling join dependency;
C32, judge whether timer is overtime,, then stop relevant signaling and connect if overtime, otherwise, keep relevant signaling to connect.
8, the connection control method between base station according to claim 1 is characterized in that described steps d comprises:
D1, set up in the process at transmission bearer, the transport resource management unit of source base station judges whether to receive that the signaling that the connection control unit sends connects abnormity notifying, if receive, then stop to send the message that transmission bearer is set up request to target BS, and be released to the transfer resource that this transmission bearer distributes, otherwise, execution in step d2;
The control unit that is connected of d2, source base station and target BS judges whether to receive notice about the transmission bearer property abnormality of the transmission bearer set up, if receive, and execution in step d3, otherwise, execution in step d4;
D3, stop at the transfer of data on this transmission bearer;
D4, judge whether occur conflict between the data transmission service on this transmission bearer, data transmission service on this transmission bearer promptly whether occurs and fail in time by inter-base station interface, if, execution in step d5 then, otherwise, execution in step d2;
D5, handle the conflicting data transport service occurring.
9, the connection control method between base station according to claim 8 is characterized in that described steps d 3 comprises:
D31, the data transmission service on the transmission bearer of transmission bearer property abnormality is switched on other transmission bearer;
D32, stop at the transfer of data on the transmission bearer of transmission bearer property abnormality.
10, the connection control method between base station according to claim 8 is characterized in that described steps d 5 is: adjust the priority of this data transmission service, be about to the priority of this data transmission service on this transmission bearer and improve.
11, the connection control method between base station according to claim 8 is characterized in that described steps d 5 is: the conflicting data transport service will occur and switch on other transmission bearer.
12,, it is characterized in that described data transmission service is switched on other transmission bearer is: this data transmission service is switched on the newly-established transmission bearer according to the connection control method between claim 9 or 11 described base stations.
13,, it is characterized in that described data transmission service is switched on other transmission bearer is: this data transmission service is switched on the transmission bearer that has existed according to the connection control method between claim 9 or 11 described base stations.
14, according to the connection control method between claim 9 or 11 described base stations, it is characterized in that described the mode of data transmission service with synchronous switching being switched on other transmission bearer, comprising:
F1, definite transmission bearer of taking over this data transmission service;
F2, this data transmission service is transmitted on current transmission bearer and the new transmission bearer of determining simultaneously, and receiving terminal receives the data that receive on the current transmission bearer, abandon the data that receive on the new transmission bearer of determining;
F3, receiving terminal judge whether the transmission bearer indication message of receiving that the source end is sent if receive, then to abandon the data that receive on the current transmission bearer, receive the data that receive on the new transmission bearer of determining, otherwise execution in step f2.
15, according to the connection control method between claim 9 or 11 described base stations, it is characterized in that described the mode of data transmission service by asynchronous switching being switched on other transmission bearer, comprising:
F4, definite transmission bearer of taking over this data transmission service;
The transmission bearer that f5, receiving terminal will newly be determined is as current transmission bearer, and begins to receive data service from this transmission bearer, and no longer receives the data that transmit on the original transmission bearer.
16, the connection control method between base station according to claim 1 is characterized in that described step e comprises:
The connection control unit of e1, source base station sends the SCCP connection release message to the connection control unit of target BS;
E2, source base station and target BS discharge respectively that this signaling is connected the signaling bear resource;
The transport resource management unit of e3, source base station receives the request that discharges this transmission bearer, and sends the message that request discharges this transmission bearer to the transport resource management unit of target BS;
E4, source base station and target BS are released to this transmission bearer respectively and divide other transfer resource.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02121577 CN1214663C (en) | 2002-06-26 | 2002-06-26 | Connecting control equipment between base stations and connecting control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02121577 CN1214663C (en) | 2002-06-26 | 2002-06-26 | Connecting control equipment between base stations and connecting control method thereof |
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| CN1464759A CN1464759A (en) | 2003-12-31 |
| CN1214663C true CN1214663C (en) | 2005-08-10 |
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| CN 02121577 Expired - Fee Related CN1214663C (en) | 2002-06-26 | 2002-06-26 | Connecting control equipment between base stations and connecting control method thereof |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100486349C (en) * | 2005-05-24 | 2009-05-06 | 华为技术有限公司 | Signalling connection managing method for interface between radio network controller and core nets |
| CN100461960C (en) * | 2005-07-18 | 2009-02-11 | 华为技术有限公司 | Method for realizing active state inter-AN switching in network |
| CN1330200C (en) * | 2005-09-22 | 2007-08-01 | 中兴通讯股份有限公司 | Method for establishing radio chain |
| CN101674667B (en) * | 2008-09-10 | 2012-01-11 | 中兴通讯股份有限公司 | Method for managing X2 connection relation among base stations |
| RU2495540C2 (en) * | 2008-12-30 | 2013-10-10 | ЗетТиИ Корпорейшн | Method of obtaining transmission address of target base station and method of establishing x2 interface connection |
| CN101873715B (en) * | 2009-04-24 | 2014-08-27 | 电信科学技术研究院 | Methods, systems and equipment for establishing data transmission channel in presence of CoMP (Coordinated Multi-point transmission/reception) and transmitting |
| CN101932126B (en) * | 2009-06-23 | 2013-03-20 | 华为技术有限公司 | Deletion processing method of transmission bearing as well as communication device and system |
| CN101945411B (en) * | 2009-07-10 | 2013-05-29 | 电信科学技术研究院 | Method and device for maintaining LTE base station |
| CN102378360B (en) * | 2010-08-26 | 2014-06-18 | 电信科学技术研究院 | Method, system and device for transmitting X2 transport address and establishing X2 interface |
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