CN104113875A - Cell switching method, device and apparatus - Google Patents

Abstract

The invention discloses a cell switching method, device and apparatus. The cell switching method specifically includes the following steps that: a control base station (CBS) receives a measurement report sent by UE (user equipment), and a target base station identifier carried by the measurement report is obtained, wherein the target base station identifier is used for indicating a target base station; and the CBS instructs the target base station to perform resource allocation on data link layers of the target base station according to corresponding service priorities of the UE; after the allocation, the CBS sends data to the target base station; and the CBS sends a switching instruction to the UE, and the UE resets the state information of data link layers of the UE itself according to the switching instruction, and is switched to the target base station. According to the cell switching method, device and apparatus provided by the technical scheme of the invention, the CBS initiates and controls the switching between different data base stations (DBS) as well as switching between the different data base stations and other CBSs, and therefore, signaling overhead in a switching process can be effectively reduced, and signaling interaction between the CBSs and the DBSs is separated out through utilizing protocol stack, and therefore, forwarding of a part of data can be decreased, and resource waste can be avoided.

Description

A kind of cell switching method, device and equipment

Technical field

The present invention relates to communication technical field, relate in particular to a kind of cell switching method, device and equipment.

Background technology

Along with the develop rapidly of the communication technology, radio communication service has been developed into the multi-medium data business of two-forty by the speech business of low rate, and the business demand of rapid growth is had higher requirement to cordless communication network capacity.At present, conventionally adopt and improve in two ways network capacity: by adopting the more wireless access technology of high power capacity and transmission rate to improve network capacity, as LTE(Long Term Evolution, Long Term Evolution), LTE-A(Long Term Evolution-Advanced, long-term evolution upgrading) etc.; By disposing within the specific limits a large amount of lower powered little base stations (small cells), increase channeling and improve network capacity.

In mobile communication technology, as UE(User equipment, subscriber equipment) move to another base station range Nei community from a base station range Nei community, or UE is while being positioned at the cell boarder of base station range, and UE movable signal around will change.Now, for ensure UE and mobile network continue communicate by letter, keep QoS of survice (the Quality of Service needing, quality of service), the better base station of user and signal quality is connected, and realize the load balancing between floored community at hot zones, need to carry out community switching to UE, even if UE is by switching to by target BS access network by source base station access network.In the time disposing within the specific limits a large amount of lower powered little base stations with raising network capacity, due to overlay area, single subdistrict reduce make UE more frequent in the switching of minizone, UE carries out continually community switching and will cause a large amount of control signal expenses, thereby affects the efficiency of transfer of data.In addition, the reducing of cell coverage area increases traffic carrying capacity fluctuating range in time, network traffic in the i.e. most of the time in the middle of one day in cell coverage area is far below peak traffic, thereby cause a large amount of little base stations in low load condition, caused the waste of the resource such as frequency spectrum and energy.In addition, the proportional increase of the control signal such as system information broadcast, paging that the increase of number of cells moves the system that maintains substantially, has further caused the significantly increase of control signal expense.

In order to solve the wasting of resources problem producing in the time disposing little base station, the network architecture that a kind of data signaling separates is applied and is given birth to.The network architecture separating at data signaling comprises each network element and the logic interfacing between them, utilize CBS(Control Base Station, control base station) transmitting-receiving chain of command signaling and certain customers' face data (hereinafter to be referred as data), DBS(Data Base Station, data basestation) transceiving data, reduce network control expense by the mode of mask data signaling, promote network capacity, realize the flexible switch of base station, reduce overall network energy consumption.The network architecture that this data signaling separates can be applied to LTE, UMTS(UMTS, Universal Mobile TelecommunicationSystem, universal mobile telecommunications system), cdma(Code Division Multiple Access, code division multiple access access), WiMAX(Worldwide Interoperability for Microwave Access, micro-wave access global inter communication) etc. in various wireless systems, will introduce as an example of LTE system example the network architecture that this data signaling separates below.

Consult and Figure 1 shows that data signaling separated network configuration diagram, wherein, CBS is high-power base station, with CN(Core Network; Core net) MME(Mobility Management Entity, mobile management entity) and S-GW(Serving GateWay, Service Gateway) connect, for the foundation of carrying between UE and network and release, mobile management, the transfer of data of user's face, the function such as control and management of DBS; DBS(Data Base Station, data basestation) be low power base station, for transceiving data, realize separating of chain of command signaling and user face data, because DBS does not have independently chain of command, therefore each DBS is at least associated with a CBS.

Compared with the existing LTE network architecture, the main distinction of the network architecture that data signaling separates is RAN(Radio Access Network, wireless access network) side: in the time that UE is in certain CBS coverage, it is upper that its RRC connection remains at this CBS, reduced the Signalling exchange between RAN and CN.Between UE and CBS, carry out the mutual of chain of command signaling, and carry out the mutual of user face data with CBS or DBS.

In the network architecture based on LTE, between UE and eNodeB, utilize air protocol to carry out transfer of data.Consult and Figure 2 shows that LTE user face protocol stack structural representation, this protocol stack comprises PDCP(Packet Data Convergence Protocol, packet data convergence) layer, RLC(Radio Link Control, wireless link control) layer, MAC(Medium Access Control, media access control) layer and PHY(Physical layer, physical layer).From LTE user face protocol stack, at transmitting terminal, every sublayer receives SDU(Service Data Unit from upper strata; Service data unit), simultaneously using above-mentioned SDU as PDU(Protocol Data Unit, protocol Data Unit) after export lower floor to.The process of receiving terminal deal with data is contrary with the process of above-mentioned transmitting terminal deal with data, and SDU is exported to upper strata in every sublayer, and upper strata receives this SDU as PDU.Consulting Fig. 3 is the example that PDCP layer and rlc layer carry out data transmission, IP layer data is sent to PDCP layer and is PDCP SDU, PDCP layer carries out after the operations such as optional header-compressed, encryption and integrity protection, after adding header, form the PDCP PDU that sequence number is n, be sent to rlc layer and be split into the RLC PDU that sequence number is k and k+1; When the rlc layer of receiving terminal successfully receives after the RLC PDU that sequence number is k and k+1, being spliced into sequence number by it is the RLC SDU of n the PDCP layer that is sent to receiving terminal.

In the situation that disposing a large amount of little base station, although the network architecture that has adopted data message to separate, the area coverage of single subdistrict is more and more less, and UE switches continually in minizone, and mobile management still becomes urgent problem.At present, control UE carries out community switching following three kinds of modes.

A kind of scheme of forwarding data amount between source node and destination node that reduces in handoff procedure is proposed under prior art.Consult shown in Fig. 4, the Signalling exchange that control UE carries out community switching is:

Step 400: source base station sends and measures control message to UE, to obtain the signal intelligence of all UE in source base station compass of competency.

The measurement control message of step 410:UE response source base station, to source base station reporting measurement reports.

Step 420: source base station judges when UE need to carry out community switching, sends handover request message to target BS.

Source base station judges according to measurement report whether UE needs to carry out community switching.Need to carry out community while switching when source base station judges UE, increase the frequency of poll UE, the downlink data of the rlc layer receiving status information reporting by UE to confirm that success receives, and in the time of data retransmission, only forward the downlink data of unsuccessful reception.Meanwhile, UE can be before switching active reporting rlc layer or PDCP layer receiving status information, to reduce unnecessary data retransmission.

Step 430: the handover request message of target BS response source base station.

Step 440: downlink data is sent to target BS by source base station.

Step 450: after source base station confirms that above-mentioned downlink data is sent, send switching command to UE, instruction UE switches to target BS.

The switching command successful switch that step 460:UE sends according to source base station, to target BS, sends handover success message to target BS.

Step 470: above-mentioned downlink data is sent to UE by target BS.

In technique scheme, need to carry out community while switching to UE when source base station judgement, increase the poll frequency to UE, and UE reports frequency, this poll and report and can carry out between step 420 and step 440.As can be seen here, while adopting aforesaid way to carry out community switching, need UE to increase the frequency of uploaded state information, can take a part of interface-free resources, reduced the transmission of valid data.And, because above-mentioned state information is that UE reports to source base station at some discrete time points, thereby cause the state information that source base station obtains for the real-time status information of switching instant, to cause data retransmission to have redundancy.In addition,, although technique scheme has reduced the forwarding of downlink data in cell switch process to a certain extent, do not solve the problem of the redundancy of upstream data existence.

A kind of scheme of utilizing data link layer tunnel to reduce Data duplication transmission in handoff procedure is also proposed under prior art.As shown in Figure 5, the PDCP PDU of UE is divided into several RLC PDU at rlc layer and sends, due to a PDCP PDU is divided into several RLC PDU, therefore, in the time that needs carry out community switching to UE, taking upstream data as example, source base station is only added up the remaining data (RLC PDU) that successfully do not received by source base station, target BS receives remaining RLC PDU and is forwarded to source base station again, and at the rlc layer of source base station, above-mentioned remaining RLC PDU is reassembled into PDCP PDU.Similarly, in downlink transfer, source base station RLC PDU of not confirmed UE when switching is sent to target BS by data link layer, and above-mentioned RLC PDU is sent to UE by target BS, then recovers PDCP PDU at the rlc layer of UE.In above-mentioned handoff procedure, need to carry out Signalling exchange by core net.And, when the not complete transmission of UE or while receiving from the data of certain base station, will safeguard and corresponding PDCP layer and rlc layer state information and the data in this base station releasing resource after confirming end of transmission.

As can be seen here, while adopting technique scheme to carry out community switching, UE need to safeguard the link layer state information corresponding with multiple base stations in the time switching simultaneously, thereby has increased the implementation complexity of UE.Special, in the time of UE fast moving, may relate to the state information more than two base stations.In addition,, while adopting technique scheme to carry out community switching, needs and core net (MME/S-GW) are carried out Signalling exchange, thereby cause a large amount of control signal expenses.

The prioritization scheme that also proposes a kind of inside of base station switching under prior art is applied in the network of relatively concentrating in geographical position.Consult 6 and be depicted as the flow chart that switch community: UE carries out in the process of community switching in control, first determine whether that inside of base station switches, if, keep the PDCP layer of source base station and the state information of rlc layer and notify UE to keep the state information of equivalent layer, thereby reduce the transmission that repeats of data.

The technical scheme that switch above-mentioned community is not suitable between multiple small base stations at a distance of larger scene, cannot reduce the transmission that repeats of data under this scene.In addition, adopt technique scheme carrying out need to carrying out Signalling exchange by core net in cell switch process, the switching control signaling overhead issues after therefore cannot solving honeycomb miniaturization and between core network.

In sum, in the network architecture of data separating, control in the process that UE carries out community switching, exist signaling consumption large, the problem of data redundancy and the wasting of resources.

Summary of the invention

The embodiment of the present invention provides a kind of cell switching method and device, exists signaling consumption large, the problem of data redundancy and the wasting of resources in order to solve in prior art.

First aspect, provides a kind of cell switching method, comprising:

Receive the measurement report that UE sends, obtain the target BS mark of carrying in described measurement report, wherein, described target BS mark is used to indicate target BS;

Be sent to city's information to indicate described target BS, according to the priority of at least one business corresponding to described UE, the data link layer of described target BS is carried out to resource distribution

Data link layer by data after by resource distribution is sent to described target BS;

Send switching command to described UE, indicate described UE reset this UE data link layer state information and switch to described target BS.

In conjunction with first aspect, in the possible implementation of the first, according to described target BS mark, judge whether described target BS is the base station in governed scope, and generate indication information to indicate described target BS according to the priority of at least one business corresponding to described UE according to judged result, the data link layer of described target BS is carried out to resource distribution.

In conjunction with the possible implementation of the first of first aspect, in the possible implementation of the second,, generate indication information to indicate described target BS, according to the priority of at least one business corresponding to described UE, the MAC layer of described target BS is carried out to resource distribution when in described target BS is governed scope the base station; Or the rlc layer to described target BS and MAC layer carry out resource distribution according to the priority of at least one business corresponding to UE to indicate described target BS; In the time that described target BS is governed extraneous base station, generate indication information to indicate the CBS that described target BS is corresponding respectively its MAC layer, rlc layer, PDCP layer to be carried out to resource distribution according to the priority of at least one business corresponding to described UE, make the CBS that described target BS is corresponding indicate described target BS to carry out resource distribution to its PDCP layer.

In conjunction with the possible implementation of the first of first aspect, or the implementation that the second of first aspect is possible, in the third possible implementation, when in described target BS is governed scope the base station, preserve state information and the data corresponding to described UE of PDCP layer and rlc layer, and the data link layer after by resource distribution is sent to described target BS by descending RLC PDU or descending PDCP PDU; In the time that described target BS is governed extraneous base station, by descending PDCP SDU, and the data link layer of data corresponding to the described UE being sent by S-GW after by resource distribution be sent to the CBS that described target BS is corresponding, by CBS corresponding to described target BS, by described data, the data link layer after by resource distribution is sent to described target BS.

In conjunction with the possible implementation of the first of first aspect, or the implementation that the second of first aspect is possible, in the 4th kind of possible implementation, when in described target BS is governed scope the base station, if described target BS is described CBS itself, this CBS preserves described data, and wherein, described data are the downlink data that does not receive the feedback information of described UE.

In conjunction with the first of first aspect, the second, the third, or the 4th kind of possible implementation, in the 5th kind of possible implementation,, send switching command to described UE when in described target BS is governed scope the base station, indicate described UE to preserve state information and the data of PDCP layer and the rlc layer of this UE in this locality, and reshuffle the state information of the MAC layer of this UE; Or, send switching command to described UE, indicate described UE to preserve state information and the data of the PDCP layer of this UE in this locality, and reshuffle the state information of rlc layer and the MAC layer of this UE; In the time that described target BS is governed extraneous base station, send switching command to described UE, indicate described UE to reshuffle respectively MAC layer, the rlc layer of this UE, the state information of PDCP layer.

In conjunction with the first of first aspect, the second, the third, the 4th kind, or the 5th kind of possible implementation, in the 6th kind of possible implementation,, receive the data of the described UE being forwarded by described target BS when in described target BS is governed scope the base station.

Second aspect, provides a kind of cell switching method, comprising:

Send measurement report to CBS and make described CBS obtain target BS mark and according to the priority of at least one business corresponding to UE, the data link layer of described target BS be carried out to resource distribution according to target BS corresponding to described target BS mark instruction according to described measurement report, and after configuration, data are sent by the data link layer after resource distribution to described target BS;

Receive the switching command that described CBS sends, according to this switching command state information of data link layer of described UE of resetting, and switch to described target BS.

In conjunction with second aspect, in the possible implementation of the first, notify described CBS to judge whether described target BS identifies corresponding target BS is the base station in described CBS compass of competency, and notify described CBS to carry out resource distribution to the data link layer of described target BS according to judged result.

In conjunction with the possible implementation of the first of second aspect, in the second implementation, when in described target BS is described CBS compass of competency the base station, after receiving switching command, preserve state information and the data of PDCP layer and rlc layer in described UE this locality, and reshuffle the state information of the MAC layer of this UE; Or, receive state information and the data of preserving PDCP layer after switching command in this locality, and reshuffle the state information of rlc layer and the MAC layer of described UE; , receive the state information of the MAC layer of reshuffling respectively described UE after switching command, rlc layer, PDCP layer when outside described target BS is described CBS compass of competency the base station.

In conjunction with the possible implementation of the first of second aspect, or the implementation that the second of second aspect is possible, in the third possible implementation, when in described target BS is described CBS compass of competency the base station, its data are sent to described target BS, notify described target BS that described data are sent to described CBS; , if described target BS is DBS, its data are sent to described target BS when outside described target BS is described CBS compass of competency the base station, notify described target BS that described data are sent to the CBS that described target BS is corresponding; If described target BS is another CBS, its data are sent to described another CBS.

In conjunction with the possible implementation of the first of second aspect, in the 4th kind of possible implementation, the data that are sent to described target BS by the data link layer after resource distribution are the downlink data that does not receive the feedback information of described UE.

The third aspect, provides a kind of community switching device shifter, comprising:

Receiving element, the measurement report sending for receiving UE, and this measurement report is sent to mark acquiring unit;

Mark acquiring unit, the measurement report sending for receiving described receiving element, and obtain the target BS mark of carrying in described measurement report, and described target BS mark is transferred to resource configuration unit, wherein, described target BS mark is used to indicate target BS;

Resource configuration unit, the target BS mark sending for receiving described receiving element, send indication information to indicate described target BS, according to the priority of at least one business corresponding to described UE, the data link layer of described target BS is carried out to resource distribution, and notify the above-mentioned configuration of downlink data transmitting element complete;

Downlink data transmitting element, for receiving after the complete message of configuration that described resource configuration unit sends, the data link layer by data after by resource distribution is sent to described target BS, and notification command transmitting element data are sent;

Command sending unit, is sent after message for receiving the data that described downlink data transmitting element sends, and sends switching command to described UE, indicate described UE reset this UE data link layer state information and switch to described target BS.

Fourth aspect, provides a kind of community switching device shifter, comprising:

Transmitting element, make described CBS obtain target BS mark and according to the priority of at least one business corresponding to this device, the data link layer of described target BS be carried out to resource distribution according to target BS corresponding to described target BS mark instruction according to described measurement report for send measurement report to CBS, and the data link layer after by resource distribution is sent to described target BS by data after configuration, and notify data described in receiving element to be sent;

Receiving element, is sent after message for the data that receive described transmitting element transmission, receives the switching command that described CBS sends, and described switching command is sent to switch unit;

Switch unit, the switching command sending for receiving described receiving element, and according to this switching command state information of data link layer of this device of resetting, and switch to described target BS.

The 5th aspect, provides a kind of base station equipment, comprising:

Radio-frequency (RF) transceiver, the measurement report sending for receiving UE;

Processor, the target BS mark of carrying for obtaining the measurement report of described radio-frequency (RF) transceiver reception, and indicate corresponding target BS according to the priority of at least one business corresponding to described UE, the data link layer of described target BS is carried out to resource distribution, wherein, described target BS mark is used to indicate target BS;

Described radio-frequency (RF) transceiver, also for the data link layer of target BS being configured after complete message receiving, data link layer by data after by resource distribution is sent to described target BS, and send switching command to described UE, indicate described UE reset this UE data link layer state information and switch to described target BS.

The 6th aspect, provides a kind of subscriber equipment, comprising:

Radio-frequency (RF) transceiver, make described CBS obtain target BS mark and according to the priority of at least one business corresponding to this equipment, the data link layer of described target BS be carried out to resource distribution according to target BS corresponding to described target BS mark instruction according to described measurement report for send measurement report to CBS, and the data link layer after by resource distribution is sent to described target BS by data after configuration; And receive the switching command that described CBS sends, be sent to processor;

Processor, for the state information of the data link layer of this equipment of resetting according to this switching command, and switches to described target BS.

In the embodiment of the present invention, CBS receives the measurement report that UE sends, and obtains the target BS mark of carrying in this measurement report, and wherein, this target BS mark is used to indicate target BS; CBS indicates above-mentioned target BS, according to service priority corresponding to above-mentioned UE, the data link layer of this target BS is carried out to resource distribution; And after configuration, above-mentioned CBS sends data to above-mentioned target BS; CBS sends switching command to above-mentioned UE, and this UE is according to the state information of the data link layer of switching command replacement self and switch to above-mentioned target BS.Adopt technical solution of the present invention, by CBS initiate and control between different DBS and and other CBS between switching, effectively reduce the signaling consumption in handoff procedure, and, utilize the Signalling exchange between protocol stack separation of C BS and DBS, reduce the forwarding of partial data, thereby avoided the wasting of resources.

Brief description of the drawings

Fig. 1 is the network architecture schematic diagram that in prior art, data signaling separates;

Fig. 2 is LTE user face protocol stack schematic diagram in prior art;

Fig. 3 is that in prior art, data are transmitted schematic diagram between PDCP layer and rlc layer;

Fig. 4 is prior art small area handover scheme schematic diagram one;

Fig. 5 is prior art small area handover scheme schematic diagram two;

Fig. 6 is prior art small area handover scheme schematic diagram three;

Fig. 7 is that detail flowchart one is switched in embodiment of the present invention small area;

Fig. 8 is the inside and outside schematic diagram that switches of CBS in the embodiment of the present invention;

Fig. 9 is a kind of protocol stack signaling separate mode in the embodiment of the present invention;

Figure 10 is another kind of protocol stack signaling separate mode in the embodiment of the present invention;

Figure 11 is that detail flowchart two is switched in embodiment of the present invention small area

Figure 12 is that detail flowchart three is switched in embodiment of the present invention small area;

Figure 13 is the mutual schematic diagram one of embodiment of the present invention small area hand off signaling;

Figure 14 is the mutual schematic diagram two of embodiment of the present invention small area hand off signaling;

Figure 15 is the mutual schematic diagram three of embodiment of the present invention small area hand off signaling;

Figure 16 is embodiment of the present invention small area switching device shifter schematic diagram one;

Figure 17 is embodiment of the present invention small area switching device shifter schematic diagram two;

Figure 18 is embodiment of the present invention small area switching device schematic diagram one;

Figure 19 is embodiment of the present invention small area switching device schematic diagram two.

Embodiment

In the network architecture of data separating, control in the process that UE carries out community switching in order to solve, signaling consumption is large, the problem of data redundancy and the wasting of resources.In the embodiment of the present invention, CBS receives the measurement report that UE sends, and obtains the target BS mark of carrying in this measurement report, and wherein, this target BS mark is used to indicate target BS; CBS indicates above-mentioned target BS, according to service priority corresponding to above-mentioned UE, the data link layer of this target BS is carried out to resource distribution; And after configuration, above-mentioned CBS sends data to above-mentioned target BS; CBS sends switching command to above-mentioned UE, and this UE is according to the state information of the data link layer of switching command replacement self and switch to above-mentioned target BS.Adopt technical solution of the present invention, by CBS initiate and control between different DBS and and other CBS between switching, effectively reduce the signaling consumption in handoff procedure, and, utilize the Signalling exchange between protocol stack separation of C BS and DBS, reduce the forwarding of partial data, thereby avoided the wasting of resources.

When in the compass of competency of UE in certain DBS, carry out the mutual of data with this DBS, the mode that these data are transmitted between S-GW and above-mentioned DBS has two kinds: first kind of way, S-GW is directly sent to DBS by above-mentioned data, or is sent to S-GW by this DBS; The second way, first S-GW sends data to CBS, forwards the data to DBS by CBS, or DBS sends data to CBS, then CBS by this data retransmission to S-GW.In the second implementation, CBS focuses on data, can effectively improve treatment effeciency, is convenient to the website cooperation under same CBS.The present invention is mainly for the network architecture of the data signaling of the second data transfer mode.

Technical solution of the present invention is applicable to 2G, 3G and 4G network, in the embodiment of the present invention, (consults shown in Fig. 1) and describes in detail as an example of LTE network example.Below in conjunction with accompanying drawing, the preferred embodiment of the present invention is elaborated.

Consult shown in Fig. 7, in the embodiment of the present invention, the detailed process that CBS carries out community switching to this UE of UE transmission information control is:

Step 700:CBS receives the measurement report that UE sends, and obtains the target BS mark of carrying in this measurement report.

In the embodiment of the present invention, CBS receives the measurement report that UE sends, and obtains the target BS mark of carrying in this measurement report, and according to this target BS mark, judges whether this target BS identifies corresponding target BS is the base station in above-mentioned CBS compass of competency.Consult shown in Fig. 8, in the time that this target BS identifies corresponding base station and is the base station in CBS compass of competency, judging that this community switches in CBS switches; In the time that this target BS identifies corresponding base station and is the base station outside CBS compass of competency, judge that this community switches to CBS and switches outward.

In the time comprising multiple target BS mark in this measurement report, identify the correlated performance parameters such as corresponding channel quality according to each target BS and choose target BS that performance parameter is the highest and identify corresponding target BS and carry out subsequent treatment.Above-mentioned target identification is used to indicate target BS, and a target identification is corresponding to a target BS.

Step 710: above-mentioned CBS transmission indication information according to the priority of at least one business corresponding to above-mentioned UE, carries out resource distribution to the data link layer of this target BS with indicating target base station.

Be specially:

In the embodiment of the present invention, consult and Figure 9 shows that a kind of user face protocol stack signaling separate mode, wherein, each DBS is all associated with a CBS, between this DBS and S-GW, do not have S1 to connect, between CBS and DBS, connect by X2 agreement or other end-to-end protocols, data are kept at PCDP layer and the rlc layer of CBS; Need not physical connection between DBS or logic connect; The RRC that CBS is in charge of UE connects, and according to the qos requirement of Link State, service bearer, it is to carry out the transmitting-receiving of data by CBS or the DBS that certain is associated with this CBS that the information such as load condition determine; Consult and Figure 10 shows that another kind of user face protocol stack signaling separate mode, wherein, each DBS is all associated with a CBS, and between this DBS and S-GW, does not have S1 to connect, and data are kept at the PCDP layer of CBS.The second protocol stack signaling separate mode needs DBS to carry more business, reduce the implementation complexity of CBS and increased the implementation complexity of DBS, can tolerate the transmission delay between longer CBS and DBS, but in cell switch process, need to abandon the data of not confirmed by UE in part rlc layer, reduced the efficiency of handoff procedure.

When judging that target BS is as the base station in CBS compass of competency, switch in CBS, and while adopting the first protocol stack signaling separate mode, CBS indicates this target BS, according to service priority corresponding to above-mentioned UE, the MAC layer of this target BS is carried out to resource distribution; In the time adopting the second protocol stack signaling separate mode, CBS indicates this target BS, and according to the priority of at least one business corresponding to UE, the rlc layer to this target BS and MAC layer carry out resource distribution.The type of service judgement that the priority of at least one business that above-mentioned UE is corresponding is corresponding according to UE, for example, when the type of service of the first business corresponding to UE is multimedia service, the type of service of the second corresponding business is speech business, the priority of the first business is higher than the priority of the second business, now, the MAC layer to himself is carried out resource distribution by target BS, and the first task and the second task that are above-mentioned UE are distributed corresponding resource.

Special, while switching in CBS, if target BS is CBS itself, this CBS carries out resource distribution according to the priority of at least one business corresponding to UE to the MAC layer of himself, or according to the priority of at least one business corresponding to UE, the MAC layer to himself and rlc layer carry out resource distribution to this CBS.

When judging that target BS is as the base station outside above-mentioned CBS compass of competency, they be that CBS switches outward, and CBS indicates this target BS, and according to the priority of at least one business corresponding to above-mentioned UE, the MAC layer to the corresponding CBS of target BS, rlc layer, PDCP layer carry out resource distribution respectively.Further, indicated the data link layer of this target BS replacement target BS by CBS corresponding to target BS, be specially, in the time adopting the first protocol stack signaling separate mode, resource distribution is carried out to the MAC layer of himself in indicating target base station; In the time adopting the second protocol stack signaling separate mode, MAC layer and the rlc layer of indicating target base station to himself carries out resource distribution.

Special, in the time that CBS switches outward, if target BS is another CBS, MAC layer, rlc layer, the PDCP layer of this another CBS to himself carries out resource distribution.

In the embodiment of the present invention, after the data link layer of target BS is configured, when judging that target BS is as the base station in CBS compass of competency, while being the interior switching of CBS, CBS sends business release message to source base station, indicate this source base station its data link layer of resetting, be specially: when with the first protocol stack signaling separate mode, CBS indicates the state information of this source base station replacement MAC layer and removes the data that above-mentioned UE is corresponding; In the time adopting the second protocol stack signaling separate mode, CBS indicates the state information of this source base station replacement MAC layer and rlc layer and removes the data that above-mentioned UE is corresponding.

Special, while switching in CBS, if source base station is CBS itself, this CBS reset himself MAC layer state information and remove the data that above-mentioned UE is corresponding, or, replacement CBS himself MAC layer and the state information of rlc layer and remove the data that above-mentioned UE is corresponding.

Step 720: after configuration, the data link layer after by resource distribution is sent to above-mentioned target BS to above-mentioned CBS by data.

In the embodiment of the present invention, the data that the data link layer of above-mentioned CBS after by resource distribution is sent to above-mentioned target BS are the downlink data that does not receive the feedback information of UE.

Base station in above-mentioned target BS is CBS compass of competency, be to switch in CBS, and while adopting the first protocol stack signaling separate mode, this CBS preserves state information and the data corresponding to above-mentioned UE of PDCP layer and rlc layer in this locality, and descending RLC PDU is sent to above-mentioned target BS; In the time adopting the second protocol stack signaling separate mode, above-mentioned CBS preserves state information and the data corresponding to above-mentioned UE of PDCP layer and rlc layer in this locality, and descending PDCP PDU is sent to above-mentioned target BS.

When outside above-mentioned target BS is CBS compass of competency the base station, this CBS is by descending PDCP SDU, be sent to the CBS that above-mentioned target BS is corresponding, and its local data corresponding to above-mentioned UE of preserving are sent to above-mentioned CBS by S-GW, by this CBS by above-mentioned data retransmission to CBS corresponding to above-mentioned target BS.Further, by CBS corresponding to target BS, above-mentioned downlink data (being PDCP PDU) is sent to target BS by the data link layer after resource distribution.Special, in the time that above-mentioned target BS is another CBS, preserve above-mentioned downlink data by this another CBS.

Step 730: above-mentioned CBS sends switching command to above-mentioned UE, indicate this UE reset self data link layer state information and switch to above-mentioned target BS.

Base station in target BS is CBS compass of competency, be to switch in CBS, and while adopting the first protocol stack signaling separate mode, above-mentioned CBS instruction UE preserves the PDCP layer of this UE and state information and the data of rlc layer in this UE this locality, and reshuffles the state information of the MAC layer of this UE; In the time adopting the second protocol stack signaling separate mode, above-mentioned CBS instruction UE preserves state information and the data of the PDCP layer of this UE in this UE this locality, and reshuffles the state information of rlc layer and the MAC layer of this UE.

Base station outside target BS is CBS compass of competency, when CBS switches outward, this CBS instruction UE reshuffles respectively MAC layer, the rlc layer of this UE, the state information of PDCP layer.

In the embodiment of the present invention, UE, according to the switching command of CBS, obtains access parameter, and according to this access parameter, switches to corresponding target BS.

After said process, separate by the signaling to user face protocol stack, only transmit data corresponding in the partial data link layer in CBS, and retain state information and the data of corresponding data link layer in CBS and UE, in ensureing downlink data integrality and accuracy, effectively reduce the expense of mutual signaling, saved system resource.

In the embodiment of the present invention, the transmitting procedure of upstream data is: when in target BS is CBS compass of competency the base station, CBS receives the upstream data of the UE being forwarded by target BS, in the time adopting the first protocol stack signaling separate mode, UE is sent to upstream data after the physical layer and the processing of MAC layer of target BS, by X2 agreement or other end-to-end protocols, MAC SDU is sent to the CBS that target BS is corresponding, after the rlc layer of CBS corresponding to target BS is processed, submits upper strata or carry out corresponding control operation; In the time adopting the second protocol stack signaling separate mode, UE is sent to upstream data after physical layer, MAC layer and the rlc layer processing of target BS, by X2 agreement or other end-to-end protocols, RLC SDU is sent to the CBS that target BS is corresponding, after the PDCP layer of CBS corresponding to target BS is processed, submits upper strata or carry out corresponding control operation.By said process, ensure that upstream data is in the accuracy of transmitting procedure with without disappearance property in cell switch process.

Base station outside target BS is CBS compass of competency, be that CBS is while switching outward, UE switches to after target BS, target BS is to core network requests message, path conversion is carried out in request, be specially: target BS is to MME transmit path conversion request, MME sends user's face update request according to this path conversion request to S-GW, the request message of S-GW response MME also sends user's face renewal feedback to MME, MME upgrades feedback to CBS transmit path Handover Request Acknowledge corresponding to target BS according to this user's face, determines that path conversion is complete.

After the conversion of above-mentioned path, if switching to CBS, this switches outward, the CBS that target BS is corresponding sends resource to CBS corresponding to source base station and releases order, instruction CBS corresponding to source base station the reset data link layer (being MAC layer, rlc layer and PDCP layer) of this CBS and the data link layer of replacement source base station.Be specially, in the time adopting the first protocol stack signaling separate mode, CBS instruction source base station reset himself MAC layer state information and remove the data that above-mentioned UE is corresponding; In the time adopting the second protocol stack signaling separate mode, CBS instruction source base station reset himself MAC layer and the state information of rlc layer and remove the data that above-mentioned UE is corresponding.Target BS can carry out information interaction with UE.Special, in the time that CBS switches outward, if source base station is CBS itself, this CBS reset himself MAC layer, rlc layer and PDCP layer state information and remove the data that above-mentioned UE is corresponding.

Consult shown in Figure 11, in the embodiment of the present invention, the detailed process that UE sends information to CBS is:

Step 1100:UE sends measurement report to CBS and makes CBS obtain target BS mark and according to the priority of at least one business corresponding to this UE, the data link layer of above-mentioned target BS be carried out to resource distribution according to target BS corresponding to this target BS mark instruction according to this measurement report, and by data, the data link layer after by resource distribution is sent to above-mentioned target BS after configuration.

In the embodiment of the present invention, the above-mentioned data that are sent to target BS are the downlink data that does not receive the feedback information of UE.

UE notice CBS judges whether target BS identifies corresponding target BS is the base station in this CBS compass of competency, and notifies this CBS to carry out resource distribution to the data link layer of above-mentioned target BS according to judged result.

Step 1110: above-mentioned UE receives the switching command that above-mentioned CBS sends, according to this switching command state information of data link layer of this UE of resetting, and switches to above-mentioned target BS.

Base station in above-mentioned target BS is CBS compass of competency, and while adopting the first protocol stack signaling separate mode, UE preserves state information and the data of PDCP layer and the rlc layer of this UE in this locality, and reshuffles the state information of the MAC layer of this UE; In the time adopting the second protocol stack signaling separate mode, UE preserves state information and the data of the PDCP layer of this UE in this locality, and reshuffles the state information of rlc layer and the MAC layer of this UE.

, UE reshuffles respectively MAC layer, the rlc layer of this UE, the state information of PDCP layer when outside target BS is CBS compass of competency the base station.

In the embodiment of the present invention, UE, according to the switching command of CBS, obtains access parameter, and according to this access parameter, switches to target BS.

, its upstream data is sent to target BS by UE, notifies this target BS that this upstream data is sent to this CBS when in target BS is CBS compass of competency the base station., if above-mentioned target BS is DBS, its upstream data is sent to above-mentioned target BS by UE, notifies this target BS that this upstream data is sent to the CBS that this target BS is corresponding when outside target BS is CBS compass of competency the base station; If target BS is another CBS, its upstream data is sent to another CBS by UE.

Consult shown in Figure 12, in the embodiment of the present invention, the detailed process that CBS and UE carry out information interaction is:

Step 1200:CBS receives the measurement report that UE sends, and obtains the target BS mark of carrying in this measurement report.

In the embodiment of the present invention, UE sends measurement report according to the measurement control order of CBS to this CBS, this CBS receives the measurement report that UE sends, obtain the target BS mark of carrying in this measurement report, and according to this target BS mark, judge whether this target BS identifies corresponding target BS is the base station in above-mentioned CBS compass of competency.

Step 1210:CBS indicating target base station is carried out resource distribution according to the priority of at least one business corresponding to above-mentioned UE to the data link layer of this target BS.

When judging that target BS is as the base station in CBS compass of competency, be to switch in CBS, and when the first protocol stack signaling separate mode shown in employing Fig. 9, CBS indicates this target BS, according to the priority of at least one business corresponding to above-mentioned UE, the MAC layer of this target BS is carried out to resource distribution; When adopt shown in Figure 10 the second protocol stack signaling separate mode time, CBS indicates this target BS, and according to the priority of at least one business corresponding to UE, the rlc layer to this target BS and MAC layer carry out resource distribution.

When judging that target BS is as the base station outside above-mentioned CBS compass of competency, CBS switches outward, and CBS indicates this target BS, and according to service priority corresponding to above-mentioned UE, the MAC layer to the corresponding CBS of target BS, rlc layer, PDCP layer carry out resource distribution respectively.Further, indicated the data link layer of this target BS replacement target BS by CBS corresponding to target BS, be specially, in the time adopting the first protocol stack signaling separate mode, resource distribution is carried out to the MAC layer of himself in indicating target base station; In the time adopting the second protocol stack signaling separate mode, MAC layer and the rlc layer of indicating target base station to himself carries out resource distribution.

Step 1220: after configuration, the data link layer after by resource distribution is sent to above-mentioned target BS to above-mentioned CBS by data.

In the embodiment of the present invention, the data that the data link layer of above-mentioned CBS after by resource distribution is sent to target BS are the downlink data that does not receive the feedback information of UE.

Base station in above-mentioned target BS is CBS compass of competency, be to switch in CBS, and while adopting the first protocol stack signaling separate mode, this CBS preserves state information and the data corresponding to above-mentioned UE of PDCP layer and rlc layer in this locality, and descending RLC PDU is sent to above-mentioned target BS; In the time adopting the second protocol stack signaling separate mode, above-mentioned CBS preserves state information and the data corresponding to above-mentioned UE of PDCP layer and rlc layer in this locality, and descending PDCP PDU is sent to above-mentioned target BS.

, this CBS is by descending PDCP SDU, and the data corresponding to above-mentioned UE of preserving in S-GW are sent to the CBS that above-mentioned target BS is corresponding when outside above-mentioned target BS is CBS compass of competency the base station.Further, by CBS corresponding to target BS, above-mentioned downlink data is sent to target BS.Special, in the time that above-mentioned target BS is another CBS, this another CBS preserves above-mentioned downlink data.

Step 1230:CBS sends switching command to UE, and this UE is according to the state information of the data link layer of switching command replacement self and switch to above-mentioned target BS.

Be specially:

Base station in above-mentioned target BS is CBS compass of competency, and while adopting the first protocol stack signaling separate mode, UE preserves state information and the data of PDCP layer and the rlc layer of this UE in this locality, and reshuffles the state information of the MAC layer of this UE; In the time adopting the second protocol stack signaling separate mode, UE preserves state information and the data of the PDCP layer of this UE in this locality, and reshuffles the state information of rlc layer and the MAC layer of this UE.

, UE reshuffles respectively MAC layer, the rlc layer of this UE, the state information of PDCP layer when outside target BS is CBS compass of competency the base station.

In the embodiment of the present invention, UE, according to the switching command of CBS, obtains access parameter, and according to this access parameter, switches to target BS.

, its upstream data is sent to target BS by UE, notifies above-mentioned target BS that this upstream data is sent to this CBS when in target BS is CBS compass of competency the base station., if above-mentioned target BS is DBS, its upstream data is sent to above-mentioned target BS by UE, notifies this target BS that this upstream data is sent to the CBS that this target BS is corresponding when outside target BS is CBS compass of competency the base station; If target BS is another CBS, its upstream data is sent to above-mentioned another CBS by UE.

In the embodiment of the present invention, in the time that source base station is DBS, handoff procedure need not carry out data retransmission by source base station, now, if when source base station does not have new business, can enter sooner low energy consumption state and reduce resource consumption.And, adopt technical solution of the present invention, under the first protocol stack signaling separate mode, forward rlc layer packet by CBS, thereby ensured harmless switching, effectively avoid unnecessary data re-transmission, improve switching efficiency.In the inner switching of CBS, between CBS and core net, do not need Signalling exchange, thereby effectively reduce handoff delay, reduce the expense of control signal.

Based on technique scheme, below in conjunction with concrete application scenarios, community is switched and described in detail.

Consult shown in Figure 13, the base station in target BS is CBS compass of competency, switches in CBS, adopts the first protocol stack signaling separate mode, and source base station and target BS be while being DBS, and the Signalling exchange flow process that switch community is:

Step 1300:CBS sends and measures control message to UE.

Step 1301:UE responds above-mentioned measurement control message, to CBS reporting measurement reports.

CBS judges whether to carry out community switching to this UE according to this measurement report.

Step 1302: when CBS determine need to above-mentioned UE carry out community switch time, to target BS send service bearer set up message.

Target BS is set up message according to this service bearer its MAC layer is carried out to resource distribution.

Step 1303:CBS sends service bearer release message to source base station.

Source base station is reset to its MAC layer according to this service bearer release message.

Step 1304:CBS sends switching command to UE.

UE, according to this switching command, preserves the state information of PCDP and rlc layer, the state information of its MAC layer of resetting.

Step 1305:CBS sends downlink data to DBS.

Step 1306:UE accesses target BS according to the access parameter in switching command, and sends and switched to CBS, and cell switch process finishes.

In the embodiment of the present invention, above-mentioned steps 1304 and 1305 can be exchanged, and first performs step 1305, then performs step 1304.

Consult shown in Figure 14, the base station outside target BS is CBS compass of competency, CBS switches outward, adopts the first protocol stack signaling separate mode, and source base station is DBS not, and when target BS is another CBS, the Signalling exchange flow process that switch community is:

Step 1400:CBS sends and measures control message to UE.

Step 1401:UE responds above-mentioned measurement control message, to CBS reporting measurement reports.

CBS judges whether to carry out community switching to this UE according to this measurement report.

Step 1402: need to carry out community while switching to above-mentioned UE when source CBS determines, send handover request message to target CBS.

Step 1403: target CBS responds above-mentioned handover request message, and to source, CBS sends request acknowledge message.

Step 1404: source CBS receives after above-mentioned request acknowledge message, sends switching command to UE.

Step 1405: CBSXiang source, source DBS sends bearer service release message.

Step 1406: source CBS sends downlink data to target CBS.

Step 1407:UE is according to switching command access target CBS, and notification target CBS has switched.

Step 1408: target CBS is to core net transmit path handover request, and receives after the path switching response message of core net, sends service bearer release message to CBS, and instruction source CBS discharges the resource of its data link layer.

Consult shown in Figure 15, the base station in target BS is CBS compass of competency, switches in CBS, adopts the second protocol stack signaling separate mode, and source base station is DBS, and when target BS be another DBS, the signaling process of community switching is alternately:

Step 1500:CBS sends and measures control message to UE.

Step 1501:UE responds above-mentioned measurement control message, to CBS reporting measurement reports.

CBS judges whether to carry out community switching to this UE according to this measurement report.

Step 1502: when source CBS determine need to above-mentioned UE carry out community switch time, to target BS send service bearer set up message.

Target BS is set up message according to this service bearer its MAC layer is carried out to resource distribution.

Step 1503:CBS sends service bearer release message to source base station.

Source base station is reset to its MAC layer according to this service bearer release message.

Step 1504:CBS sends switching command to UE.

UE, according to this switching command, preserves the state information of PCDP and rlc layer, the state information of its MAC layer of resetting.

Step 1505:CBS sends downlink data to DBS.

Step 1506:UE accesses target BS according to the access parameter in switching command, and sends and switched to CBS, and cell switch process finishes.

In the embodiment of the present invention, above-mentioned steps 1504 and 1505 can be exchanged, and first performs step 1505, then performs step 1504.

Based on above-described embodiment, consult shown in Figure 16, the present invention also provides a kind of community switching device shifter, comprises receiving element 160, mark acquiring unit 161, resource configuration unit 162, downlink data transmitting element 163, command sending unit 164, wherein,

Receiving element 160, the measurement report sending for receiving UE, and this measurement report is sent to mark acquiring unit 161;

Mark acquiring unit 161, the measurement report sending for receiving receiving element 160, and obtain the target BS mark of carrying in measurement report, and above-mentioned target BS mark is transferred to resource configuration unit 162;

Resource configuration unit 162, the target BS mark sending for receiving described receiving element 161, indicate corresponding target BS according to the priority of at least one business corresponding to above-mentioned UE, the data link layer of above-mentioned target BS is carried out to resource distribution, and notify the above-mentioned configuration of downlink data transmitting element 163 complete, wherein, above-mentioned target BS mark is used to indicate target BS;

Downlink data transmitting element 163, for receiving after the complete message of configuration that resource configuration unit 162 sends, the data link layer by data after by resource distribution is sent to above-mentioned target BS, and notification command transmitting element 164 downlink datas are sent;

Command sending unit 164, is sent after message for receiving the data that above-mentioned downlink data transmitting element 163 sends, and sends switching command to above-mentioned UE, indicate this UE reset this UE data link layer state information and switch to above-mentioned target BS.

In addition, above-mentioned community switching device shifter also comprises upstream data transmitting element 165, specifically for,, receive the data of the above-mentioned UE being forwarded by this target BS when in above-mentioned target BS is this device compass of competency the base station.

Consult shown in Figure 17, the present invention also provides a kind of community switching device shifter, comprises transmitting element 170, receiving element 171, and switch unit 172, wherein,

Transmitting element 170, make this CBS obtain target BS mark and according to the priority of local at least one corresponding business, the data link layer of above-mentioned target BS be carried out to resource distribution according to target BS corresponding to this target BS mark instruction according to described measurement report for send measurement report to CBS, and the data link layer after by resource distribution is sent to above-mentioned target BS by data after configuration, and notify data described in receiving element 171 to be sent;

Receiving element 171, is sent after message for receiving the data that transmitting element 170 sends, and receives the switching command that CBS sends, and this switching command is sent to switch unit 172;

Switch unit 172, the switching command sending for receiving receiving element 171, and according to this switching command state information of data link layer of this device of resetting, and switch to above-mentioned target BS.

In addition, above-mentioned community switching device shifter also comprises upstream data transmitting element 173, when being the base station in above-mentioned CBS compass of competency when above-mentioned target BS, its data are sent to above-mentioned target BS, notify above-mentioned target BS to send data to described CBS; , if above-mentioned target BS is DBS, its data are sent to above-mentioned target BS when outside above-mentioned target BS is above-mentioned CBS compass of competency the base station, notify above-mentioned target BS that described data are sent to the CBS that above-mentioned target BS is corresponding; If above-mentioned target BS is another CBS, its data are sent to above-mentioned another CBS.

Consult shown in Figure 18, the present invention also provides a kind of base station equipment, comprises radio-frequency (RF) transceiver 180, processor 181, wherein,

Radio-frequency (RF) transceiver 180, the measurement report sending for receiving UE;

Processor 181, the target BS mark of carrying for obtaining the measurement report of described radio-frequency (RF) transceiver reception, and indicate corresponding target BS, according to the priority of at least one business corresponding to above-mentioned UE, the data link layer of above-mentioned target BS is carried out to resource distribution, wherein, above-mentioned target BS mark is used to indicate target BS;

Radio-frequency (RF) transceiver 180, also for the data link layer of target BS being configured after complete message receiving, data link layer by data after by resource distribution is sent to above-mentioned target BS, and send switching command to above-mentioned UE, indicate this UE reset its data link layer state information and switch to above-mentioned target BS.

Consult shown in Figure 19, the present invention also provides a kind of subscriber equipment, comprises radio-frequency (RF) transceiver 190, and processor, wherein,

Radio-frequency (RF) transceiver 190, make this CBS obtain target BS mark and according to the priority of at least one business corresponding to this equipment, the data link layer of above-mentioned target BS be carried out to resource distribution according to target BS corresponding to above-mentioned target BS mark instruction according to above-mentioned measurement report for send measurement report to CBS, and by data, the data link layer after by resource distribution is sent to above-mentioned target BS after configuration, and receive the switching command that described CBS sends, be sent to processor 191;

Processor 191, for the state information of the data link layer of this equipment of resetting according to this switching command, and switches to described target BS.

Said process is only for technical solution of the present invention is applied to the embodiment in LTE system, in addition, technical solution of the present invention can also be applied to UMTS, cdma2000, in the various 2G such as WiMAX, 3G and 4G network, although it is incomplete same that the protocol stack in heterogeneous networks is divided, and all can adopt technical solution of the present invention to carry out respective handling to data link layer, to reduce signaling consumption and data redundancy.

In sum, in the embodiment of the present invention, CBS receives the measurement report that UE sends, and obtains the target BS mark of carrying in this measurement report; CBS is according to the corresponding target BS of above-mentioned target BS mark instruction, and the service priority corresponding according to above-mentioned UE carries out resource distribution to the data link layer of this target BS; And after configuration, downlink data is sent to above-mentioned target BS by above-mentioned CBS; CBS sends switching command to above-mentioned UE, and this UE is according to the state information of the data link layer of switching command replacement self and switch to above-mentioned target BS.By the protocol stack function of CBS and DBS is separated, in the time adopting the first protocol stack signaling separate mode, be forwarded to DBS after making the PDCP layer of downlink data by CBS and rlc layer process, make upstream data be forwarded to CBS through physical layer and the MAC layer of DBS.CBS sends carrying to DBS and sets up and carry release message, and DBS realizes the user's scheduling based on loading priority according to the associated UE of this message management and at MAC layer.In the time adopting the second protocol stack signaling separate mode, downlink data is forwarded to DBS after processing by the PDCP layer of CBS, and upstream data is forwarded to CBS through physical layer, MAC layer and the rlc layer of DBS.CBS sends carrying to DBS and sets up and carry release message, and DBS, according to the associated UE of this message management, determines the transmission mode of UE at rlc layer, and realizes the user's scheduling based on loading priority at MAC layer.

Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, completely implement software example or the form in conjunction with the embodiment of software and hardware aspect.And the present invention can adopt the form at one or more upper computer programs of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.

The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction that makes to carry out by the processor of computer or other programmable data processing device produces the device for realizing the function of specifying at flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.

These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame on computer or other programmable devices.

Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and amendment to these embodiment.So claims are intended to be interpreted as comprising preferred embodiment and fall into all changes and the amendment of the scope of the invention.

Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the embodiment of the present invention the embodiment of the present invention.Like this, if these amendments of the embodiment of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.

Claims (32)

1. a cell switching method, is characterized in that, comprising:

Receive the measurement report that user equipment (UE) sends, obtain the target BS mark of carrying in described measurement report, wherein, described target BS mark is used to indicate target BS;

Send indication information to indicate described target BS, according to the priority of at least one business corresponding to described UE, the data link layer of described target BS is carried out to resource distribution;

Data link layer by data after by resource distribution is sent to described target BS;

Send switching command to described UE, indicate described UE reset this UE data link layer state information and switch to described target BS.

2. the method for claim 1, is characterized in that, sends indication information to indicate described target BS, according to the priority of at least one business corresponding to described UE, the data link layer of described target BS is carried out to resource distribution, specifically comprises:

Judge whether described target BS is the base station in governed scope; And

Generate indication information to indicate described target BS, according to the priority of at least one business corresponding to described UE, the data link layer of described target BS is carried out to resource distribution according to judged result.

3. method as claimed in claim 2, it is characterized in that, generate indication information to indicate described target BS, according to the priority of at least one business corresponding to described UE, the data link layer of described target BS is carried out to resource distribution according to judged result, specifically comprise:

, generate indication information to indicate described target BS, according to the priority of at least one business corresponding to described UE, the media access control MAC layer of described target BS is carried out to resource distribution when in described target BS is governed scope the base station; Or the wireless link control rlc layer to described target BS and MAC layer carry out resource distribution according to the priority of at least one business corresponding to UE to indicate described target BS;

In the time that described target BS is governed extraneous base station, generate indication information to indicate the control base station CBS that described target BS is corresponding respectively its MAC layer, rlc layer, grouped data convergence PDCP layer to be carried out to resource distribution according to the priority of at least one business corresponding to described UE, make the CBS that described target BS is corresponding indicate described target BS to carry out resource distribution to its PDCP layer.

4. method as claimed in claim 2 or claim 3, is characterized in that, the data link layer by data after by resource distribution is sent to described target BS, specifically comprises:

When in described target BS is governed scope the base station, preserve state information and the data corresponding to described UE of PDCP layer and rlc layer, and the data link layer after by resource distribution is sent to described target BS by descending rlc protocol data cell PDU or descending PDCP PDU;

In the time that described target BS is governed extraneous base station, by descending PDCP service data unit SDU, and the data link layer of data corresponding to the described UE being sent by gateway S-GW after by resource distribution be sent to the CBS that described target BS is corresponding, by CBS corresponding to described target BS, by described data, the data link layer after by resource distribution is sent to described target BS.

5. method as claimed in claim 2 or claim 3, is characterized in that, the data link layer by data after by resource distribution is sent to described target BS, also comprises:

, if described target BS is CBS, preserve described data by this CBS, wherein, described data are the downlink data that does not receive the feedback information of described UE when in described target BS is governed scope the base station.

6. method as claimed in claim 2, is characterized in that, sends switching command to described UE, indicates the described UE state information of data link layer of this UE of resetting, and specifically comprises:

, send switching command to described UE when in described target BS is governed scope the base station, indicate described UE to preserve state information and the data of PDCP layer and the rlc layer of this UE in this locality, and reshuffle the state information of the MAC layer of this UE; Or send switching command to described UE, indicate described UE to preserve state information and the data of the PDCP layer of this UE in this locality, and reshuffle the state information of rlc layer and the MAC layer of this UE;

In the time that described target BS is governed extraneous base station, send switching command to described UE, indicate described UE to reshuffle respectively MAC layer, the rlc layer of this UE, the state information of PDCP layer.

7. method as claimed in claim 2, is characterized in that, indicate described UE reset this UE data link layer state information and switch to described target BS after, also comprise:

, receive the data that the described UE that forwarded by described target BS sends when in described target BS is governed scope the base station.

8. a cell switching method, is characterized in that, comprising:

Send measurement report and make described CBS obtain target BS mark and according to the priority of at least one business corresponding to user equipment (UE), the data link layer of described target BS be carried out to resource distribution according to target BS corresponding to described target BS mark instruction according to described measurement report to controlling base station CBS, and the data link layer after by resource distribution is sent to described target BS by data after configuration;

Receive the switching command that described CBS sends, according to this switching command state information of data link layer of this UE of resetting, and switch to described target BS.

9. method as claimed in claim 8, it is characterized in that, make described CBS obtain target BS mark and according to the priority of at least one business corresponding to UE, the data link layer of described target BS be carried out to resource distribution according to target BS corresponding to described target BS mark instruction according to described measurement report to controlling base station CBS transmission measurement report, specifically comprise:

Notify described CBS to judge whether described target BS identifies corresponding target BS is the base station in described CBS compass of competency, and notify described CBS to carry out resource distribution to the data link layer of described target BS according to judged result.

10. method as claimed in claim 9, is characterized in that, notifies described CBS to carry out resource distribution to the data link layer of described target BS according to judged result, specifically comprises:

When in described target BS is described CBS compass of competency the base station, after receiving switching command, preserve the grouped data convergence PDCP layer of described UE and state information and the data of wireless link control rlc layer in this locality, and reshuffle the state information of the media access control MAC layer of this UE; Or, preserve state information and the data of the PDCP layer of this UE in this locality after receiving switching command, and reshuffle the state information of rlc layer and the MAC layer of described UE;

, receive the state information of the MAC layer of reshuffling respectively described UE after switching command, rlc layer, PDCP layer when outside described target BS is described CBS compass of competency the base station.

11. methods as described in claim 9 or 10, is characterized in that, after switching to described target BS, further comprise:

, its data are sent to described target BS when in described target BS is described CBS compass of competency the base station, notify described target BS that described data are sent to described CBS;

, if described target BS is data basestation DBS, its data are sent to described target BS when outside described target BS is described CBS compass of competency the base station, notify described target BS that described data are sent to the CBS that described target BS is corresponding; If described target BS is another CBS, its data are sent to described another CBS.

12. methods as claimed in claim 8, is characterized in that, the data that are sent to described target BS by the data link layer after resource distribution are the downlink data that does not receive the feedback information of described UE.

13.Yi Zhong community switching device shifter, is characterized in that, comprising:

Receiving element, the measurement report sending for receiving user equipment (UE), and this measurement report is sent to mark acquiring unit;

Mark acquiring unit, the measurement report sending for receiving described receiving element, and obtain the target BS mark of carrying in described measurement report, and described target BS mark is transferred to resource configuration unit, wherein said target BS mark is used to indicate target BS;

Resource configuration unit, the target BS mark sending for receiving described receiving element, send indication information to indicate described target BS, according to the priority of at least one business corresponding to described UE, the data link layer of described target BS is carried out to resource distribution, and notify the above-mentioned configuration of downlink data transmitting element complete;

Downlink data transmitting element, for receiving after the complete message of configuration that described resource configuration unit sends, the data link layer by data after by resource distribution is sent to described target BS, and notification command transmitting element data are sent;

Command sending unit, is sent after message for receiving the data that described downlink data transmitting element sends, and sends switching command to described UE, indicate described UE reset this UE data link layer state information and switch to described target BS.

14. devices as claimed in claim 13, is characterized in that, described resource configuration unit, specifically for:

Judge whether described target BS is the base station in governed scope; And indicate described target BS, according to the priority of at least one business corresponding to described UE, the data link layer of described target BS is carried out to resource distribution according to judged result.

15. devices as claimed in claim 14, is characterized in that, described resource configuration unit, specifically for:

, indicate described target BS, according to the priority of at least one business corresponding to described UE, the media access control MAC layer of described target BS is carried out to resource distribution when in described target BS is governed scope the base station; Or the wireless link control rlc layer to described target BS and MAC layer carry out resource distribution according to the priority of at least one business corresponding to UE to indicate described target BS; In the time that described target BS is governed extraneous base station, indicate the control base station CBS that described target BS is corresponding respectively its MAC layer, rlc layer, grouped data convergence PDCP layer to be carried out to resource distribution according to the priority of at least one business corresponding to described UE, make the CBS that described target BS is corresponding indicate described target BS to carry out resource distribution to its PDCP layer.

16. devices as described in claims 14 or 15, is characterized in that, described downlink data transmitting element, specifically for:

When in described target BS is governed scope the base station, preserve state information and the data corresponding to described UE of PDCP layer and rlc layer, and the data link layer after by resource distribution is sent to described target BS by descending rlc protocol data cell PDU or descending PDCP PDU; In the time that described target BS is governed extraneous base station, by descending PDCP service data unit SDU, and the data link layer of data corresponding to the described UE being sent by gateway S-GW after by resource distribution be sent to the CBS that described target BS is corresponding, by CBS corresponding to described target BS, by described data, the data link layer after by resource distribution is sent to described target BS.

17. devices as described in claims 14 or 15, is characterized in that, described downlink data transmitting element, also for:

, if described target BS is local, preserve described data in this locality, wherein, described data are the downlink data that does not receive the feedback information of described UE when in described target BS is governed scope the base station.

18. devices as claimed in claim 14, is characterized in that, described command sending unit, specifically for:

, send switching command to described UE when in described target BS is governed scope the base station, indicate described UE locally to preserve the PDCP layer of this UE and state information and the data of rlc layer at it, and reshuffle the state information of the MAC layer of this UE; Or, send switching command to described UE, indicate state information and the data of described UE at the PDCP layer of its local this UE of preservation, and reshuffle the state information of rlc layer and the MAC layer of this UE; In the time that described target BS is governed extraneous base station, send switching command to described UE, indicate described UE to reshuffle respectively MAC layer, the rlc layer of this UE, the state information of PDCP layer.

19. devices as claimed in claim 14, is characterized in that, also comprise upstream data transmitting element, specifically for:

, receive the data that the described UE that forwarded by described target BS sends when in described target BS is governed scope the base station.

20.Yi Zhong community switching device shifter, is characterized in that, comprising:

Transmitting element, for making described CBS obtain target BS mark and according to the priority of at least one business corresponding to this device, the data link layer of described target BS be carried out to resource distribution according to target BS corresponding to described target BS mark instruction according to described measurement report to controlling base station CBS transmission measurement report, and the data link layer after by resource distribution is sent to described target BS by data after configuration, and notify data described in receiving element to be sent;

Receiving element, is sent after message for the data that receive described transmitting element transmission, receives the switching command that described CBS sends, and described switching command is sent to switch unit;

Switch unit, the switching command sending for receiving described receiving element, and according to this switching command state information of data link layer of this device of resetting, and switch to described target BS.

21. devices as claimed in claim 20, is characterized in that, described transmitting element, specifically for:

Notify described CBS to judge whether described target BS identifies corresponding target BS is the base station in described CBS compass of competency, and notify described CBS to carry out resource distribution to the data link layer of described target BS according to judged result.

22. devices as claimed in claim 21, is characterized in that, described switch unit, specifically for:

, preserve state information and the data of PDCP layer and rlc layer at this device after receiving switching command, and reshuffle the state information of the MAC layer of this device when in described target BS is described CBS compass of competency the base station; Or, receive state information and the data of preserving PDCP layer after switching command at this device, and reshuffle the state information of rlc layer and the MAC layer of this device; , receive the state information of the MAC layer of reshuffling respectively this device after switching command, rlc layer, PDCP layer when outside described target BS is described CBS compass of competency the base station.

23. devices as described in claim 21 or 22, is characterized in that, also comprise upstream data transmitting element, specifically for:

, its data are sent to described target BS when in described target BS is described CBS compass of competency the base station, notify described target BS that described data are sent to described CBS; , if described target BS is data basestation DBS, its data are sent to described target BS when outside described target BS is described CBS compass of competency the base station, notify described target BS that described data are sent to the CBS that described target BS is corresponding; If described target BS is another CBS, its data are sent to described another CBS.

24. 1 kinds of base station equipments, is characterized in that, comprising:

Radio-frequency (RF) transceiver, the measurement report sending for receiving user equipment (UE);

Processor, the target BS mark of carrying for obtaining the measurement report of described radio-frequency (RF) transceiver reception, and indicate corresponding target BS, according to the priority of at least one business corresponding to described UE, the data link layer of described target BS is carried out to resource distribution, wherein, described target BS mark is used to indicate target BS;

Described radio-frequency (RF) transceiver, also for the data link layer of target BS being configured after complete message receiving, data link layer by data after by resource distribution is sent to described target BS, and send switching command to described UE, indicate described UE reset this UE data link layer state information and switch to described target BS.

25. equipment as claimed in claim 24, is characterized in that, described processor specifically for:

Judge whether described target BS is the base station in governed scope; And indicate described target BS according to the priority of at least one business corresponding to described UE according to judged result, the data link layer of described target BS is carried out to resource distribution.

26. equipment as claimed in claim 25, is characterized in that, described processor, specifically for:

, indicate described target BS, according to the priority of at least one business corresponding to described UE, the MAC layer of described target BS is carried out to resource distribution when in described target BS is governed scope the base station; Or the wireless link control rlc layer to described target BS and media access control MAC layer carry out resource distribution according to the priority of at least one business corresponding to UE to indicate described target BS; In the time that described target BS is governed extraneous base station, indicate the control base station CBS that described target BS is corresponding respectively its MAC layer, rlc layer, grouped data convergence PDCP layer to be carried out to resource distribution according to the priority of at least one business corresponding to described UE, make the CBS that described target BS is corresponding indicate described target BS to carry out resource distribution to its PDCP layer.

27. equipment as described in claim 25 or 26, is characterized in that, described radio-frequency (RF) transceiver, specifically for:

When in described target BS is governed scope the base station, preserve state information and the data corresponding to described UE of PDCP layer and rlc layer, and the data link layer after by resource distribution is sent to described target BS by descending RLC PDU or descending PDCP PDU; In the time that described target BS is governed extraneous base station, by descending PDCP SDU, and the data link layer of data corresponding to the described UE being sent by S-GW after by resource distribution be sent to the control base station CBS that described target BS is corresponding, by CBS corresponding to described target BS, by described data, the data link layer after by resource distribution is sent to described target BS.

28. equipment as claimed in claim 25, is characterized in that, described radio-frequency (RF) transceiver, specifically for:

, send switching command to described UE when in described target BS is governed scope the base station, indicate described UE locally to preserve the PDCP layer of this UE and state information and the data of rlc layer at it, and reshuffle the state information of the MAC layer of this UE; Or, send switching command to described UE, indicate state information and the data of described UE at the PDCP layer of its local this UE of preservation, and reshuffle the state information of rlc layer and the MAC layer of this UE; In the time that described target BS is governed extraneous base station, send switching command to described UE, indicate described UE to reshuffle respectively MAC layer, the rlc layer of this UE, the state information of PDCP layer.

29. equipment as claimed in claim 25, is characterized in that, described radio-frequency (RF) transceiver, specifically for:

, receive the data of the described UE being forwarded by described target BS when in described target BS is governed scope the base station.

30. 1 kinds of subscriber equipmenies, is characterized in that, comprising:

Radio-frequency (RF) transceiver, for sending measurement report and make described CBS obtain target BS mark and according to the priority of at least one business corresponding to this equipment, the data link layer of described target BS be carried out to resource distribution according to target BS corresponding to described target BS mark instruction according to described measurement report to controlling base station CBS, and by data, the data link layer after by resource distribution is sent to described target BS after configuration; And receive the switching command that described CBS sends, be sent to processor;

Processor, for the state information of the data link layer of this equipment of resetting according to this switching command, and switches to described target BS.

31. equipment as claimed in claim 30, is characterized in that, described radio-frequency (RF) transceiver, specifically for:

Notify described CBS to judge whether described target BS identifies corresponding target BS is the base station in described CBS compass of competency, and notify described CBS to carry out resource distribution to the data link layer of described target BS according to judged result.

32. equipment as claimed in claim 31, is characterized in that, described radio-frequency (RF) transceiver, specifically for:

, its data are sent to described target BS when in described target BS is described CBS compass of competency the base station, notify described target BS that described data are sent to described CBS; , if described target BS is DBS, its data are sent to described target BS when outside described target BS is described CBS compass of competency the base station, notify described target BS that described data are sent to the CBS that described target BS is corresponding; If described target BS is another CBS, its data are sent to described another CBS.