CN101820652B - Acquisition method of data information and base station - Google Patents
Acquisition method of data information and base station Download PDFInfo
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- CN101820652B CN101820652B CN200910006858.8A CN200910006858A CN101820652B CN 101820652 B CN101820652 B CN 101820652B CN 200910006858 A CN200910006858 A CN 200910006858A CN 101820652 B CN101820652 B CN 101820652B
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Abstract
The invention discloses an acquisition method of data information and a base station. The method comprises the following steps: a target base station sends a signaling to a source base station, wherein the signaling carries instructive information instructing that user equipment has been rebuilt onto the target base station; and the target base station receives reply information from the source base station and acquires the data information of the user equipment from the reply information. The invention improves the transmission efficiency of network.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of acquisition methods and base station of data message.
Background technology
Along with the development of network architecture flattening and the appearance of the removable access way of multiple high-speed wideband, the wireless communication system of evolution can provide higher transmission rate, shorter transmission delay and lower cost, can also support 3G (Third Generation) Moblie partnership project (The 3rd Generation Partnership Project, referred to as 3GPP) mobility between inner connecting system, and mobility between 3GPP connecting system and non-3GPP connecting system etc., impel mobile communication system to propose framework theory of future generation.
Fig. 1 is Long Term Evolution (the Long Time Evolution according to correlation technique, referred to as LTE) schematic diagram of station layout under framework, as shown in Figure 1, LTE/ System Architecture Evolution (the System Architecture Evolution that cordless communication network proposes, referred to as SAE) the base station (eNodeB of architecture evolution of future generation, referred to as eNB) composition evolution Radio Access Network (Evolved Radio Access Network, referred to as E-RAN); The packet core network of evolution is by Mobility Management Entity (Mobility ManagementEntity, referred to as MME) and gateway (Serving Gateway, referred to as S-GW) entity composition.Interface between eNB and core network is S1 interface, and wherein, the interface between eNB and MME is expressed as S1-MME, for completing the chain of command function of mobile management and S1 interface; Interface between eNB and S-GW is expressed as S1-U, for the function such as route, transmission of completing user data.Between eNB, be connected by X2 interface, X2 interface is for the information interaction between the eNB of the mobile management function of completing user equipment (User Equipment, referred to as UE) under state of activation and equity.
In LTE system, for the integrity of mobile communication system, when UE detects Radio Link Failure, handoff failure maybe can not meet wireless connections and reshuffle (RRC ConnectionReconfiguration, wherein, RRC is Radio Resource control, Radio ResourceControl) the reason such as requirement time, introduce the thought of wireless connections reconstructions (RRC ConnectionRe-establishment), now UE need to carry out community select process to select suitable community, (suitable cell of selection is called new community, it can be the connect community at place of former UE, also can be different communities) initiate wireless connections rebuild flow process.
Fig. 2 is according to the flow chart of the LTE system wireless connection reconstruction of correlation technique, and as shown in Figure 2, wireless connections are rebuild concrete flow process and comprised that following step S201 is to step S203:
Step S201:UE Xin community sends wireless connections and rebuilds request (RRCConnection Reestablishment Request) signaling to base station, and carries therein mark, the former cell ID at UE place etc. of UE.
Step S202: base station is that this UE distributes after required Radio Resource, sends wireless connections to this UE and rebuilds (RRC Connection Reestablishment) signaling.
Step S203:UE receives the wireless connections of sending base station and rebuilds after signaling, configures new parameter, sends wireless connections rebuild (RRC ConnectionReestablishment Complete) signaling to base station.
After wireless connections have been rebuild, UEXin community has re-established the dedicated channel of transmitting for signaling, and then, UE need to set up for the dedicated channel of data transmission and carry out transfer of data.Because connection has been set up in UEYuan community, the data of a part of uplink and downlink are transmitted, under Yuan community, the data message having received is preserved in base station, the data message not receiving, the data message having transmitted, the data message not transmitting etc., because LTE system adopts PDCP (Packet Data Convergence Protocol in the agreement of wave point user plane, referred to as PDCP), therefore, the data message that under former community, preserve base station comprises up PDCP sequence number (SequenceNumber, referred to as SN), Hyper Frame Number (the Hyper Frame Number receiving, referred to as HFN) information, descending PDCP sequence number, the Hyper Frame Number information of transmitting etc.
If Yu Yuan community, Xin community, UE place belongs to different base stations, the base station under Ze Xin community need the base station under Xiang Yuan community obtain the data message having received of preservation, the data message not receiving, transmit data message, the data message that do not transmit etc. is so that the high efficiency of transmission that user data can Xin community not be lost.In existing agreement, base station under (SN Status Transfer) Xiang Xin community transmit and is sent the data message of preservation in base station under the switching Shi Yuan community that network enabled side is initiated by sequence state, but, in wireless connections process of reconstruction, base station under new community how initiatively under Xiang Yuan community base station obtain the problem of data message, effective solution is not yet proposed at present.
Summary of the invention
In wireless connections process of reconstruction for correlation technique, base station under new community initiatively obtains the problem of data message and proposes the present invention in affiliated base station, Xiang Yuan community, for this reason, main purpose of the present invention is to provide a kind of scheme of obtaining of improved data message, to address the above problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of acquisition methods of data message.
Comprise according to the acquisition methods of data message of the present invention: target BS sends and carries the signaling that is used to indicate subscriber equipment and has been reconstructed into the indication information of target BS to source base station; Target BS receives the reply message from source base station, and from reply message, obtains the data message of subscriber equipment.
Preferably, at target BS, after source base station sends the request of reconstruction, said method also comprises: source base station receives the signaling from target BS, transmits a reply message to target BS, wherein, replys the data message that carries subscriber equipment in message.
Preferably, target BS and source base station communicate by the interface between base station.
Preferably, the interface between base station is X2 interface.
Preferably, target BS and source base station communicate via core net.
Preferably, target BS comprises to source base station transmission signaling: target BS sends signaling to core net; Core net receives the signaling from target BS, and signaling is forwarded to source base station.
Preferably, before target BS receives the reply message from source base station, said method also comprises: source base station receives the signaling from core net, and returns to reply message to core net; Core net receives the signaling from source base station, and reply message is forwarded to target BS.
Preferably, in indication information, carry the mark of subscriber equipment.
Preferably, data message comprises following one or a combination set of: the Hyper Frame Number information of the Hyper Frame Number information of ascending packet data convergence protocol sequence number, reception, downlink grouped data convergence protocol sequence number, transmission.
To achieve these goals, according to another aspect of the present invention, provide a kind of base station.
Base station according to the present invention comprises: sending module, for after the wireless connections of subscriber equipment have been reconstructed into target BS by source base station, in base station as target BS in the situation that, send signaling to source base station, and the wireless connections of carrying equipment for indicating user in signaling are reconstructed into the indication information of target BS; Receiver module, as target BS in the situation that, receives the reply message from source base station in base station; Acquisition module, for obtaining the data message of subscriber equipment from the reply message of receiver module reception.
By the present invention, target BS sends to source base station the request of reconstruction, and reply message according to the reconstruction receiving from source base station, obtain the data message of subscriber equipment, solve in the wireless connections process of reconstruction of correlation technique, base station under new community initiatively obtains the problem of data message in affiliated base station, Xiang Yuan community, and then has improved the efficiency of transmission of network.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the schematic diagram of the station layout under the LTE framework of correlation technique;
Fig. 2 is according to the flow chart of the LTE system wireless connection reconstruction of correlation technique;
Fig. 3 is according to the flow chart of the acquisition methods of the data message of the embodiment of the present invention;
Fig. 4 is according to the schematic diagram of the station layout of the embodiment of the present invention one;
Fig. 5 is the flow chart that obtains the data message of the UE of source base station according to the target BS of the embodiment of the present invention one and embodiment bis-;
Fig. 6 is by the schematic flow sheet of core net active obtaining data message according to the embodiment of the present invention three;
Fig. 7 is according to the structured flowchart of the base station of the embodiment of the present invention.
Embodiment
Functional overview
Consider in the wireless connections process of reconstruction of correlation technique, base station under new community initiatively under Xiang Yuan community base station obtain the problem of data message, the embodiment of the present invention provides a kind of scheme of obtaining of improved data message, can solve the problems referred to above by two kinds of modes, first kind of way is the method that the data message of the interface active obtaining UE between base station is passed through in base station, the second way is the method that the data message of core net active obtaining UE is passed through in base station, can realize the data message of base station active obtaining UE.
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Embodiment of the method
According to embodiments of the invention, a kind of acquisition methods of data message is provided, be applied to the wireless communication system that comprises at least two base stations and a UE, two base stations are here called source base station and target BS, it should be noted that, the role between source base station and target BS can exchange.
Fig. 3 is according to the flow chart of the acquisition methods of the data message of the embodiment of the present invention, as shown in Figure 3, after the method is reconstructed into target BS for the wireless connections of subscriber equipment by source base station, make target BS obtain the data message that this subscriber equipment is preserved at source base station, specifically comprise that following step S302 is to step S304:
Step S302, target BS sends signaling to source base station, and this signaling carries the indication information that is used to indicate subscriber equipment and has been reconstructed into target BS.Wherein, this signaling can carry the mark of UE.
Step S304, target BS receives the reply signaling from source base station, and from replying the data message that obtains UE signaling, wherein, reply the data message that carries UE in signaling, it is following one or a combination set of that the data message here can comprise: the HFN information of the HFN information of up PDCP SN, reception, descending PDCP SN, transmission.
By this embodiment, target BS sends and carries the signaling that is used to indicate subscriber equipment and has been reconstructed into target BS to source base station, and according to the reply signaling receiving from source base station, obtain the data message of UE, solve after the wireless connections process of reconstruction of correlation technique, base station under new community initiatively obtains the problem of data message in affiliated base station, Xiang Yuan community, and then has improved the efficiency of transmission of network.
The acquisition methods of above-mentioned data message can be realized by following two kinds of modes:
Mode one
Between source base station and target BS, have the interface between base station, the interface between the base station here can be X2 interface, and in this case, the implementation procedure of said method comprises:
For step S302, target BS sends signaling by the interface between base station to source base station, and carries therein UE and be reconstructed into the information of target BS.After this, source base station receives the signaling from target BS by the interface between base station, and transmit a reply message to target BS by the interface between base station, wherein, the data message that carries UE in message is replied in this reconstruction, and the data message of the UE here comprises the data message that this UE preserves at source base station.
For step S304, target BS receives the reply message from source base station by the interface between base station, and obtains the data message of this UE according to reply message.
Mode two
Target BS is all connected with core net by S1 interface with source base station, and target BS and source base station communicate via core net.
For step S302, target BS sends signaling to core net, carries the wireless connections that are used to indicate subscriber equipment and be reconstructed into the indication information of target BS in this signaling; Core net receives the signaling from target BS, and this signaling is forwarded to source base station.
After this, source base station receives the signaling from core net, and returns to reply message to core net, carries the data message of this UE in this reply signaling; Core net receives the reply message from source base station, and reply message is forwarded to target BS.
For step S304, target BS receives the reply message from source base station by core net, and obtains the data message of this UE according to reply message.The data message here comprises the data message that this UE preserves at source base station.
The implementation procedure of the above-mentioned two kinds of modes below in conjunction with example to the embodiment of the present invention is described in detail.
Embodiment mono-
This embodiment is corresponding to above-mentioned mode one, and Fig. 4 is according to the schematic diagram of the station layout of the embodiment of the present invention one, as shown in Figure 4, in LTE system, between base station 1, base station 2 and base station 3, all have X2 interface, UE is positioned at the community 1 under base station 1, in connection status.Now, comprise the data message of this UE in base station 1, this data message comprises the data message that this UE now received, the data message not receiving, the data message, the data message that do not transmit etc. that transmit.Because LTE system adopts PDCP in the agreement of wave point user plane, therefore it is following one or a combination set of that the data message that, preserve base station 1 can comprise: the HFN information of the HFN information of up PDCP SN, reception, descending PDCP SN, transmission.
In the present embodiment, base station 1 is source base station, and base station 3 is target BS.At a time, UE sends measurement report to base station 1, comprises the best several neighboring BS information of signal in this measurement report.Base station 1 obtains after this measurement report, does handover decisions, the Target cell of switching the community of base station 22 as UE, and base station 1 sends handover request signaling (Handover Request) to base station 2 by X2 interface.Now, the candidate cell that base station 1 also selects 3 affiliated subdistricts 3, base station to switch as UE, simultaneously, send handover request signaling to base station 3, and in this handover request signaling, carry the contextual information of UEYuan community 1, the contextual information here comprises the information of S1 interface, the security information of UE, the ability information of UE, RAB (Radio Access Bearer, referred to as the RAB) information of UE.
Base station 2 receives after handover request signaling, for UE Resources allocation and send switching request acknowledgement message (Handover Request Acknowledge).Now, UE is because Radio Link Failure is carried out community selection, and UE carries out after the selection of community, selects 3 affiliated subdistricts 3, base station to initiate wireless connections and rebuilds flow process.Wireless connections are rebuild flow process as shown in Figure 2, do not repeat them here.Because base station 3 has obtained the contextual information of UEYuan community 1, UE re-establishes in 3 affiliated subdistricts 3, base station after the dedicated channel of transmitting for signaling, sets up the dedicated channel for user data delivery.Set up connection due to UE community 1 before, transmitted the data of a part of uplink and downlink, that is, preserved the data message of this UE in base station 1.Now, base station 3 needs affiliated base station 1, XiangUEYuan community 1 to obtain the data message of this UE.
Fig. 5 is the flow chart that obtains the data message of the UE of source base station according to the target BS of the embodiment of the present invention one and embodiment bis-, and as shown in Figure 5, base station 3 obtains flow process from this UE data message to base station 1 comprises that following step S501 is to step S502:
Step S501: base station 3 (, target BS) by X2 interface to base station 1 (, source base station) transmission signaling, and the information of affiliated subdistrict 3 and the mark of this UE (, above-mentioned step S302) of in this signaling, carrying this UE and be reconstructed into target BS.
Step S502: base station 1 receives after this signaling, send a reply signaling by X2 interface to base station 3, and in this reply signaling, carrying the now data message of this UE, it is following one or a combination set of that the data message here can comprise: the HFN information of the HFN information of up PDCP SN, reception, descending PDCP SN, transmission.
After this, the data message that base station 3 receives this UE that base station 1 sends (, above-mentioned step S304), be applied in follow-up data transfer, like this, this UE can not lose up/down row data in Xin community 3, has avoided repeating to transmit data simultaneously, makes the efficiency of transmission of network higher.
Embodiment bis-
This embodiment is corresponding to above-mentioned mode one, and wherein, base station 1 can be used as source base station or target BS, and base station 2 equally also can be used as source base station or target BS.
In LTE system, comprise two base station and two UE that have X2 interface, two base stations are base station 1 and base station 2, two UE are respectively UE1 and UE2, and UE1 is positioned at the community 1 under base station 1, in connection status, UE2 is positioned at the community 2 under base station 2, also in connection status.Now, in base station 1 and base station 2, comprise respectively the data message of UE1 and UE2, the data message here comprises data message that UE at the data message that base station has now received separately, the data message not receiving, transmitted, the data message that do not transmit etc.Because LTE system adopts PDCP in the agreement of wave point user plane, therefore, it is following one or a combination set of that the data message here can comprise: the HFN information of the HFN information of up PDCP SN, reception, descending PDCP SN, transmission.
At a time, UE1 sends measurement report to base station 1, and in measurement report, carries the best several neighboring BS information of signal.Base station 1 obtains after measurement report, do handover decisions, the Target cell of switching the community of base station 22 as UE1, base station 1 sends handover request signaling (Handover Request) to base station 2, and in handover request signaling, carrying the contextual information of UE1Yuan community 1, the contextual information here comprises the information of S1 interface, the security information of UE1, the ability information of UE1, the RAB information of UE1.
Send after measurement report at UE1, UE1 is because Radio Link Failure is carried out community selection, and UE1 carries out after the selection of community, selects 2 affiliated subdistricts 3, base station to initiate wireless connections and rebuilds flow process.Wireless connections are rebuild flow process as shown in Figure 2, do not repeat them here.UE1 re-establishes in 2 affiliated subdistricts 3, base station after the dedicated channel of transmitting for signaling, and the handover request signaling of having sent by base station 1 due to base station 2 obtains the context of UE1, and the dedicated channel that is used for user data delivery is set up for UE1 in base station 2.Because UE1 has successfully accessed community 3 by rebuilding, therefore, the Handover Request Acknowledge signaling that base station 2 does not send for being switched to community 2 to base station 1.
Set up connection due to UE1 community 1 before, transmitted the data of a part of uplink and downlink, that is, preserved the data message of this UE1 in base station 1.Now, base station 2 needs affiliated base station 1, XiangUE1Yuan community 1 to obtain the data message of this UE1.
Wherein, the flow process that base station 2 obtains this UE1 data message to base station 1 comprises: base station 2 sends signaling by X2 interface to base station 1, and in this signaling, carry UE1 and be reconstructed into the information of the affiliated subdistrict of base station 2 and the mark of this UE1 (, above-mentioned step S302); Base station 1 receives after this signaling, send a reply signaling to base station 2, and in this reply signaling, carrying the data message of current UE 1, it is following one or a combination set of that the data message here can comprise: the HFN information of the HFN information of up PDCP SN, reception, descending PDCPSN, transmission.Can find out, this flow process is identical with the flow process that Fig. 4 describes, and now base station 1 is source base station, and base station 2 is target BS.
Base station 2 receives the data message of the UE1 that base station 1 sends, is applied in follow-up data transfer, and like this, UE1 can not lose up/down row data in Xin community 3, has avoided repeating to transmit data simultaneously, makes the efficiency of transmission of network higher.
After a period of time, UE2 is the community 2 under base station 2 still, in connection status.At a time, UE2 sends measurement report to base station 2, and in measurement report, carries the best several neighboring BS information of signal.Base station 2 obtains after this measurement report, do handover decisions, the Target cell of switching the community of base station 11 as UE2, base station 2 sends handover request signaling (Handover Request) to base station 1, and in this handover request signaling, carrying the contextual information of UE2Yuan community 2, the contextual information here comprises the information of S1 interface, the security information of UE2, the ability information of UE2, the RAB information of UE2.
Send after measurement report at UE2, UE2 is because Radio Link Failure is carried out community selection, and UE2 carries out after community is selected and selects 1 affiliated subdistrict 1, base station to initiate wireless connections reconstruction flow process.Wireless connections are rebuild flow process as shown in Figure 2, do not repeat them here.UE2 re-establishes in 1 affiliated subdistrict 1, base station after the dedicated channel of transmitting for signaling, and the handover request signaling of having sent by base station 2 due to base station 1 obtains the context of UE2, and the dedicated channel that is used for user data delivery is set up for UE2 in base station 1.Because UE2 has successfully accessed community 1 by rebuilding, therefore, the Handover Request Acknowledge signaling that base station 1 does not send for being switched to community 1 to base station 2.
Set up connection due to UE2 community 2 before, transmitted the data of a part of uplink and downlink, that is, preserved the data message of this UE2 in base station 2.Now, base station 1 needs affiliated base station 2, community 2 to obtain the data message of this UE2.
Wherein, the flow process that base station 1 obtains this UE2 data message to base station 2 comprises: base station 1 sends signaling by X2 interface to base station 2, and in this signaling, carry UE2 and be reconstructed into the information of the affiliated subdistrict of base station 1 and the mark of this UE2 (, above-mentioned step S302); Base station 2 receives after this signaling, send a reply signaling to base station 1, and in this reply signaling, carry the data message of current UE 2, it is following one or a combination set of that the data message here can comprise: the HFN information (, above-mentioned step S304) of the HFN information of up PDCP SN, reception, descending PDCPSN, transmission.Can find out, this flow process is identical with the flow process that Fig. 4 describes, and now base station 2 is source base station, and base station 1 is target BS.
The data message that base station 1 receives the UE2 sending base station 2 (, above-mentioned step S304), be applied in follow-up data transfer, like this, UE2 can not lose up/down row data in Xin community 1, avoid repeating to transmit data simultaneously, made the efficiency of transmission of network higher.
Embodiment tri-
This embodiment, corresponding to above-mentioned mode two, is applied to LTE system, and base station 1 is connected with core net by S1 interface respectively with base station 2, between base station 1 and base station 2, there is no X2 interface.UE is positioned at the community 1 under base station 1, in connection status.Community 1 and 2 affiliated subdistricts 2, base station, community 3 neighboring BS relationship each other.Now, comprise the data message of this UE in base station 1, the data message here comprises the data message that this UE now received, the data message not receiving, the data message, the data message that do not transmit etc. that transmit.Because LTE system adopts PDCP in the agreement of wave point user plane, it is following one or a combination set of that the data message that therefore preserve base station 1 can comprise: the HFN information of the HFN information of up PDCPSN, reception, descending PDCP SN, transmission.In this embodiment, base station 1 is source base station, and base station 2 is target BS.
At a time, UE sends measurement report to base station 1, and in measurement report, carries the best several neighboring BS information of signal.Base station 1 obtains after measurement report, does handover decisions, the Target cell of switching the community of base station 22 as UE, and base station 1 sends handover request signaling to base station 2.
Owing to there is no X2 interface between base station 1 and base station 2, therefore, the step that base station 1 is sent in handover request signaling to base station 2 comprises: base station 1 sends handover request signaling (Handover Required) by S1 interface to core net, core net sends handover request signaling (Handover Request) after receiving this signaling to base station 2, in these two handover request signalings, all carry the contextual information of UEYuan community 1, the contextual information here comprises the information of S1 interface, the security information of UE, the ability information of UE, the RAB information of UE.
Base station 2 receives after handover request signaling, is prepared as UE Resources allocation and sends switching request acknowledgement message (Handover Request Acknowledge).Now, UE is because Radio Link Failure is carried out community selection, and UE carries out after community is selected and selects 2 affiliated subdistricts 3, base station to initiate wireless connections reconstruction flow process.Wireless connections are rebuild flow process as shown in Figure 2, do not repeat them here.Because base station 2 has obtained the contextual information of UEYuan community 1, UE re-establishes in 2 affiliated subdistricts 3, base station after the dedicated channel of transmitting for signaling, then sets up the dedicated channel for user data delivery.Set up connection due to UE community 1 before, transmitted the data of a part of uplink and downlink, that is, preserved the data message of this UE in base station 1.Now, base station 2 needs affiliated base station 1, XiangUEYuan community 1 to obtain the data message of this UE.
Fig. 6 be according to the embodiment of the present invention three by the schematic flow sheet of core net active obtaining data message, as shown in Figure 6, base station 2 obtains flow process from this UE data message to base station 1 comprises that following step S601 is to step S604:
Step S601: base station 2 sends signaling by S1 interface to core net, and carry this UE and be reconstructed into the information of the affiliated subdistrict of base station 2 in this signaling, and the mark of the mark of this UE, source base station.
Step S602: core net receives after the signaling that base station 2 sends, and sends signaling by S1 interface to base station 1, and in this signaling, carry this UE and be reconstructed into the information of the affiliated subdistrict of base station 2.
Above step S601 and step S602 are corresponding to above-mentioned step S302.
Step S603: base station 1 receives after the signaling that core net sends, send signaling to core net, and in this signaling, carrying the data message of current this UE, it is following one or a combination set of that the data message here can comprise: the HFN information of the HFN information of up PDCP SN, reception, descending PDCP SN, transmission.This signaling can also be carried the mark of base station 2.
Step S604: core net receives after the data message of this UE that base station 1 sends, send signaling to base station 2, this signaling is carried the data message of this UE, and the data message here comprises: current up PDCP SN or the HFN information receiving or descending PDCPSN or the HFN information of transmitting or above combination in any.
Base station 2 receives the data message (, above-mentioned step S304) of this UE, is applied in follow-up data transfer, like this, this UE can not lose up/down row data in Xin community 3, has avoided repeating to transmit data simultaneously, makes the efficiency of transmission of network higher.
Device embodiment
According to embodiments of the invention, provide a kind of base station.Fig. 7 is according to the structured flowchart of the base station of the embodiment of the present invention, and as shown in Figure 7, this base station comprises: sending module 2, receiver module 4, acquisition module 6, be described said structure below.
Sending module 2, after being reconstructed into target BS for the wireless connections of subscriber equipment by source base station, as target BS in the situation that, send signaling to source base station in base station, and in this signaling, carry the wireless connections that are used to indicate subscriber equipment and be reconstructed into the indication information of target BS; Receiver module 4, as target BS in the situation that, receives the reply message from source base station in base station, wherein, carries the now data message of UE in this reply message; Acquisition module 6, is connected to receiver module 4, obtains the data message of this UE for the reply message receiving from receiver module 4.
Wherein, sending module 2 can be processed by following two kinds of modes:
(1) sending module 2 sends signaling by the interface between base station to source base station.
(2) sending module 2 sends signaling via core net to source base station.
The signaling that sending module 2 sends comprises subscriber equipment and has been reconstructed into the information of target BS.
Wherein, receiver module 4 can be processed by following two kinds of modes:
(1) receiver module 4 receives the reply message from source base station by the interface between base station.
(1) receiver module 4 receives the reply message from source base station via core net.
In the reply message that receiver module 4 receives, comprise the now data message of this UE.
By this embodiment, provide the base station that can initiatively trigger the data message that obtains UE.
In sum, pass through the above embodiment of the present invention, target BS sends the signaling of carrying subscriber equipment and be reconstructed into target BS indication information to source base station, and according to the reply message receiving from source base station, obtain the data message of UE, wherein, target BS and source base station can or communicate by core net by the interface between base station, solve in correlation technique, base station under new community initiatively under Xiang Yuan community base station obtain the problem of data message, make UE can not lose in target BS Xin community up/down row data, data have been avoided repeating to transmit simultaneously, improve the efficiency of transmission of network.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that multiple calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
More than describing is only the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. an acquisition methods for data message, is characterized in that, described method comprises:
Target BS sends and carries the signaling that is used to indicate subscriber equipment and has been reconstructed into the indication information of described target BS to source base station, wherein, described target BS and described source base station communicate by the interface between base station, or described target BS and described source base station communicate via core net;
Described target BS receives the reply message from described source base station, and from described reply message, obtains the data message of described subscriber equipment.
2. method according to claim 1, is characterized in that, after described target BS sends described reconstruction request to described source base station, described method also comprises:
Described source base station receives the described signaling from described target BS, transmits a reply message to described target BS, wherein, carries the data message of described subscriber equipment in described reply message.
3. method according to claim 1, is characterized in that, the interface between described base station is X2 interface.
4. method according to claim 1, is characterized in that, described target BS sends described signaling to described source base station and comprises:
Described target BS sends described signaling to described core net;
Described core net receives the described signaling from described target BS, and described signaling is forwarded to described source base station.
5. method according to claim 4, is characterized in that, before described target BS receives the reply message from described source base station, described method also comprises:
Described source base station receives the described signaling from described core net, and returns to described reply message to described core net;
Described core net receives the described signaling from described source base station, and described reply message is forwarded to described target BS.
6. according to the method described in any one in claim 1 to 5, it is characterized in that, in described indication information, carry the mark of described subscriber equipment.
7. according to the method described in any one in claim 1 to 5, it is characterized in that, it is following one or a combination set of that described data message comprises:
The Hyper Frame Number information of the Hyper Frame Number information of ascending packet data convergence protocol sequence number, reception, downlink grouped data convergence protocol sequence number, transmission.
8. a base station, is characterized in that, comprising:
Sending module, for after the wireless connections of subscriber equipment have been reconstructed into target BS by source base station, in described base station as target BS in the situation that, send signaling to described source base station, and in described signaling, carry the indication information of indicating the wireless connections of described subscriber equipment to be reconstructed into described target BS;
Receiver module, as described target BS in the situation that, receives the reply message from described source base station in described base station;
Acquisition module, for obtaining the data message of described subscriber equipment from the described reply message of described receiver module reception.
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| CN102291796A (en) * | 2011-09-02 | 2011-12-21 | 中国联合网络通信集团有限公司 | Service data transmission method, system and management control center |
| CN103108403B (en) * | 2011-11-10 | 2017-12-22 | 深圳市中洲科技有限公司 | Across base station RRC connection reconstructions method and system |
| CN102421145B (en) * | 2011-11-24 | 2015-02-04 | 中国联合网络通信集团有限公司 | Method and system for carrying out direct communication of data among base stations |
| KR101852994B1 (en) * | 2012-05-14 | 2018-04-30 | 노키아 솔루션스 앤드 네트웍스 오와이 | Signaling framework for assistance information |
| CN102892155B (en) * | 2012-09-18 | 2019-07-30 | 中兴通讯股份有限公司 | A kind of method and mobility management entity of gateway reorientation |
| WO2014121503A1 (en) * | 2013-02-07 | 2014-08-14 | 华为技术有限公司 | Data transmission method and access network device |
| EP3490294A4 (en) * | 2016-08-12 | 2019-07-17 | Huawei Technologies Co., Ltd. | Communication method, device and system |
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