CN104980980A

CN104980980A - Method, system and equipment for connection establishment

Info

Publication number: CN104980980A
Application number: CN201410143652.0A
Authority: CN
Inventors: 焦斌
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT
Priority date: 2014-04-10
Filing date: 2014-04-10
Publication date: 2015-10-14

Abstract

Embodiments of the invention relate to the field of wireless communication technologies, in particular to a method, a system and equipment for connection establishment, which are used for solving the problem of a strong impact on a maximum jitter performance index of data transmission delay due to data transmission interruption during hard handover of UE (User Equipment) in the prior art. According to the embodiments of the invention, the method comprises the following steps that the user equipment reports target cell information which conforms to establishment conditions of a second link to a serving base station through a first link; and the user equipment receives a second link resource, which is sent by the serving base station and is allocated to the user equipment by a target base station, establishes a connection with the target base station according to the second link resource and does not disconnect the first link with the serving base station. The user equipment is capable of simultaneously carrying out parallel communication with two base stations through the two links, and the two base stations are interactive, so that data transmission interruption during hard handover is avoided, and the impact on the maximum jitter performance index of data transmission delay during hard handover is reduced.

Description

A kind of method, system and equipment connected

Technical field

The present invention relates to wireless communication technology field, particularly a kind of method, system and equipment connected.

Background technology

Current mobile radio system is mainly for the communication requirement (such as browsing page, download audio frequency and video, instant messaging etc.) of human user to content class information.Following mobile radio system continues to meet the communication requirement of human user to content class information except needing, and more needs to solve machine type user to the communication requirement of detection type and control category information (automatically protect transformer station in the automatic Pilot auto arrangement of such as vehicle, intelligent grid, can touch direct communication between extensive processor chips, ubiquitous virtual reality applications etc. in the Internet).

For meeting machine type user to detection type and the communication requirement controlling category information, end-to-end delay and delay jitter performance in prior art, basis significantly must promote.From the angle of probability distribution, jitter performance is except needs reduction average delay, maximum delay shake is controlled within as far as possible low thresholding also particularly important for meeting detection type and controlling the communication requirement of category information, if can not send in maximum delay thresholding may cause the serious consequence such as car crash or even electrical network paralysis because control class signaling for the application layer that a bag is important.From another angle, if future mobile communication system can not meet above-mentioned delay and reliability requirement, so it just cannot in the application in above-mentioned field.

Existing LTE(Long Term Evolution, Long Term Evolution) UE(subscriber equipment in system) handoff procedure be:

The measurement report that UE sends meets switching condition Trigger services base station triggers and switches set-up procedure, in switching set-up procedure, target BS is that UE distributes the follow-up private resource used from target BS access, serving BS notice UE carries out switching and is the resource notification UE distributed in this process by target BS, UE stops the communication with serving BS, and after going to the station to meet somebody access again from target, recover RRC(RadioResource Control, wireless heterogeneous networks) normal function that connects, carries out business data transmission by target BS.But at present UE, in across base station movement, direct-cut operation occurs, and direct-cut operation itself causes the interruption of transfer of data, thus data transfer delay maximum jitter performance index are caused have a strong impact on.

In sum, current UE can cause data-transmission interruptions when carrying out direct-cut operation, thus causes data transfer delay maximum jitter performance index and have a strong impact on.

Summary of the invention

The invention provides a kind of method, system and the equipment that connect, can data-transmission interruptions be caused in order to solve the UE existed in prior art when carrying out direct-cut operation, thus the problem had a strong impact on is caused to data transfer delay maximum jitter performance index.

A kind of method connected that the embodiment of the present invention provides, comprising:

The target cell information meeting the set up the condition of the second link is reported serving BS by the first link by subscriber equipment;

The target BS that described subscriber equipment reception serving BS sends is the second link circuit resource of user equipment allocation, connects, and do not disconnect the first link between described serving BS according to described second link circuit resource and described target BS.

Preferably, described subscriber equipment also comprises before the target cell information meeting the set up the condition of the second link is reported serving BS by the first link:

Described subscriber equipment obtains the condition triggering and set up the second link from described serving BS by the first link;

The target cell information meeting the set up the condition of the second link is reported serving BS by the first link by described subscriber equipment, comprising:

Described subscriber equipment meet set up the condition of the second link after, the target cell information meeting the set up the condition of the second link is reported serving BS by the first link.

Preferably, described subscriber equipment connects according to described second link circuit resource and described target BS, and after not disconnecting the first link between described serving BS, also comprises:

Described subscriber equipment is measured Serving cell by described first link, and when measurement result meets the release report condition of the first link, notify that the chain of command of described subscriber equipment in described Serving cell and downlink user face are transferred to described Target cell by described Serving cell; Or

Described subscriber equipment is measured Serving cell by described first link, and when measurement result meets the release report condition of the first link, notify that the chain of command of described subscriber equipment in described Serving cell and downlink user face are transferred to described Target cell by described Target cell.

Preferably, described subscriber equipment connects according to described second link circuit resource and described target BS, and before not disconnecting the first link between described serving BS, also comprises:

Described subscriber equipment obtains the release report condition of the first link from described serving BS by the first link.

Described subscriber equipment, when there being upstream data to need to send, selects a community from Serving cell and Target cell, and sends described upstream data by the community selected.

Preferably, the method also comprises:

Described subscriber equipment obtains the release report condition of the second link from described serving BS by the first link;

Described subscriber equipment connects according to described second link circuit resource and described target BS, and after not disconnecting the first link between described serving BS, also comprises:

Described subscriber equipment, after the release report condition measurement of described second link being met to the second link, to described serving base stations report measurement result, and after receiving the release notice of described serving BS, discharges described second link.

The method that the another kind that the embodiment of the present invention provides connects, comprising:

Serving BS receives the target cell information meeting the set up the condition of the second link of subscriber equipment transmission by the first link;

Described serving BS trigger target base station is that the second link assignment resource set up by described subscriber equipment, and be subscriber equipment described in the resource notification of described user equipment allocation by target BS, to make described subscriber equipment connect according to described second link circuit resource and described target BS, and do not disconnect the first link between described serving BS.

Preferably, described serving BS by first link receive subscriber equipment send meet the target cell information of the set up the condition of the second link before, also comprise:

Described Serving cell is the set up the condition of the second link described in described user device configuration.

Preferably, described serving BS trigger target base station is, after the second link assignment resource set up by described subscriber equipment, also comprise:

Core network gateway is that the upstream port number that the carrying of described subscriber equipment distributes sends to described target BS by described Serving cell, to make described target BS before described Target cell is transferred in the uplink user face of subscriber equipment, forward the upstream data of described subscriber equipment according to described upstream port number.

Preferably, target BS for after subscriber equipment described in the resource notification of described user equipment allocation, also comprises by described serving BS:

The chain of command of described subscriber equipment in described Serving cell and downlink user face, according to the measurement result for the first link of described user equipment to report, after determining to need described first link of release, are transferred to described target BS by described serving BS; Or

The chain of command of described subscriber equipment in described Serving cell and downlink user face, after receiving the notice from described first link of release of described target BS, are transferred to described target BS by described serving BS.

Preferably, the method also comprises:

Described serving BS is the release report condition of described user device configuration first link, to make described subscriber equipment after the release report condition of described first link meets, reports the metrical information for described first link.

Preferably, the method also comprises:

Described serving BS is the release report condition of described user device configuration second link, to make described subscriber equipment after the release report condition of described second link meets, reports the metrical information for described second link;

Described serving BS, according to the metrical information for described second link, after determining to need described second link of release, notifies described second link of described subscriber equipment release.

Another method connected that the embodiment of the present invention provides, comprising:

After target BS receives the notice of the serving BS of subscriber equipment, for the second link assignment resource set up by described subscriber equipment;

The the second link assignment resource set up for described subscriber equipment is notified described subscriber equipment by described serving BS by described target BS, to make described subscriber equipment connect according to described second link circuit resource and described target BS, and do not disconnect the first link between described serving BS.

Preferably, described Target cell is, after the second link assignment resource set up by described subscriber equipment, also comprise:

Described Target cell is before described Target cell is transferred in the uplink user face of subscriber equipment, and the upstream port number notified according to described serving BS forwards the upstream data of described subscriber equipment.

Described Target cell is according to the measurement result for the first link of described user equipment to report, after determining to need described first link of release, notify that the chain of command of described subscriber equipment in described Serving cell and downlink user face are transferred to described Target cell by described serving BS.

A kind of subscriber equipment connected that the embodiment of the present invention provides, comprising:

First sending module, the target cell information for the set up the condition by meeting the second link reports serving BS by the first link;

First processing module, the target BS sent for receiving serving BS is the second link circuit resource of user equipment allocation, connects, and do not disconnect the first link between described serving BS according to described second link circuit resource and described target BS.

Preferably, described first processing module also for:

Before the target cell information meeting the set up the condition of the second link is reported serving BS by the first link, obtained the condition triggering and set up the second link from described serving BS by the first link; Meet set up the condition of the second link after, the target cell information meeting the set up the condition of the second link is reported serving BS by the first link.

Preferably, described first processing module also for:

Connect according to described second link circuit resource and described target BS, and after not disconnecting the first link between described serving BS, by described first link, Serving cell is measured, and when measurement result meets the release report condition of the first link, notify that the chain of command of described subscriber equipment in described Serving cell and downlink user face are transferred to described Target cell by described Serving cell; Or

Connect according to described second link circuit resource and described target BS, and after not disconnecting the first link between described serving BS, by described first link, Serving cell is measured, and when measurement result meets the release report condition of the first link, notify that the chain of command of described subscriber equipment in described Serving cell and downlink user face are transferred to described Target cell by described Target cell.

Preferably, described first processing module also for:

Obtained the release report condition of the first link from described serving BS by the first link.

Preferably, described first processing module also for:

Connect according to described second link circuit resource and described target BS, and after not disconnecting the first link between described serving BS, when needing there being upstream data to send, from Serving cell and Target cell, selecting a community, and send described upstream data by the community selected.

Preferably, described first processing module also for:

Obtained the release report condition of the second link from described serving BS by the first link; After the release report condition measurement of described second link being met to the second link, to described serving base stations report measurement result, and after receiving the release notice of described serving BS, discharge described second link.

A kind of serving BS connected that the embodiment of the present invention provides, comprising:

Second sending module, for receiving the target cell information meeting the set up the condition of the second link that subscriber equipment sends by the first link;

Second processing module, be that the second link assignment resource set up by described subscriber equipment for trigger target base station, and be subscriber equipment described in the resource notification of described user equipment allocation by target BS, to make described subscriber equipment connect according to described second link circuit resource and described target BS, and do not disconnect the first link between described serving BS.

Preferably, described second processing module also for:

By first link receive subscriber equipment send meet the target cell information of the set up the condition of the second link before, be the set up the condition of the second link described in described user device configuration.

Preferably, described second processing module also for:

Trigger target base station is after the second link assignment resource set up by described subscriber equipment, be that the upstream port number that the carrying of described subscriber equipment distributes sends to described target BS by core network gateway, to make described target BS before described Target cell is transferred in the uplink user face of subscriber equipment, forward the upstream data of described subscriber equipment according to described upstream port number.

Preferably, described second processing module also for:

By target BS for after subscriber equipment described in the resource notification of described user equipment allocation, according to the measurement result for the first link of described user equipment to report, after determining to need described first link of release, the chain of command of described subscriber equipment in described Serving cell and downlink user face are transferred to described target BS; Or

By target BS for after subscriber equipment described in the resource notification of described user equipment allocation, after receiving the notice from described first link of release of described target BS, the chain of command of described subscriber equipment in described Serving cell and downlink user face are transferred to described target BS.

Preferably, described second processing module also for:

For the release report condition of described user device configuration first link, to make described subscriber equipment after the release report condition of described first link meets, report the metrical information for described first link.

Preferably, described second processing module also for:

For the release report condition of described user device configuration second link, to make described subscriber equipment after the release report condition of described second link meets, report the metrical information for described second link; According to the metrical information for described second link, after determining to need described second link of release, notify described second link of described subscriber equipment release.

A kind of target BS connected that the embodiment of the present invention provides, comprising:

Receiver module, for receive the serving BS of subscriber equipment notice after, for the second link assignment resource set up by described subscriber equipment;

3rd processing module, for the second link assignment resource set up for described subscriber equipment is notified described subscriber equipment by described serving BS, to make described subscriber equipment connect according to described second link circuit resource and described target BS, and do not disconnect the first link between described serving BS.

Preferably, described 3rd processing module also for:

After described subscriber equipment sets up the second link assignment resource, before described Target cell is transferred in the uplink user face of subscriber equipment, the upstream port number notified according to described serving BS forwards the upstream data of described subscriber equipment.

Preferably, described 3rd processing module also for:

According to the measurement result for the first link of described user equipment to report, after determining to need described first link of release, notify that the chain of command of described subscriber equipment in described Serving cell and downlink user face are transferred to described Target cell by described serving BS.

A kind of system connected that the embodiment of the present invention provides, comprising:

Subscriber equipment, the target cell information for the set up the condition by meeting the second link reports serving BS by the first link; The target BS receiving serving BS transmission is the second link circuit resource of user equipment allocation, connects, and do not disconnect the first link between described serving BS according to described second link circuit resource and described target BS;

Serving BS, for receiving the target cell information meeting the set up the condition of the second link that subscriber equipment sends by the first link; Trigger target base station is that the second link assignment resource set up by described subscriber equipment, and is subscriber equipment described in the resource notification of described user equipment allocation by target BS;

Target BS, for receive the serving BS of subscriber equipment notice after, for the second link assignment resource set up by described subscriber equipment; The the second link assignment resource set up for described subscriber equipment is notified described subscriber equipment by described serving BS.

The target cell information meeting the set up the condition of the second link is reported serving BS by the first link by embodiment of the present invention subscriber equipment; And the target BS receiving serving BS transmission is the second link circuit resource of user equipment allocation, connects, and do not disconnect the first link between described serving BS according to described second link circuit resource and described target BS.Because subscriber equipment can be communicated with two base station parallel by two links simultaneously, and have mutual between two base stations, thus the data-transmission interruptions caused when avoiding direct-cut operation, reduce the impact that data transfer delay maximum jitter performance index are caused when direct-cut operation, also improve efficiency of transmission and systematic function further.

Accompanying drawing explanation

Fig. 1 is the system configuration schematic diagram that the embodiment of the present invention one connects;

Fig. 2 is the structural representation of subscriber equipment in the system that connects of the embodiment of the present invention two;

Fig. 3 is the structural representation of serving BS in the system that connects of the embodiment of the present invention three;

Fig. 4 is the structural representation of target BS in the system that connects of the embodiment of the present invention four;

Fig. 5 is the structural representation of subscriber equipment in the system that connects of the embodiment of the present invention five;

Fig. 6 is the structural representation of serving BS in the system that connects of the embodiment of the present invention six;

Fig. 7 is the structural representation of target BS in the system that connects of the embodiment of the present invention seven;

Fig. 8 is the method flow schematic diagram that the embodiment of the present invention eight connects;

Fig. 9 is the method flow schematic diagram that the embodiment of the present invention nine connects;

Figure 10 is the method flow schematic diagram that the embodiment of the present invention ten connects;

Figure 11 is the method flow schematic diagram that the embodiment of the present invention 11 connects;

Figure 12 is the method flow schematic diagram that the embodiment of the present invention 12 connects;

Figure 13 is the method flow schematic diagram that the embodiment of the present invention 13 connects.

Embodiment

The embodiment of the present invention is done across in base station movement process at subscriber equipment, and subscriber equipment is while maintenance with Serving cell proper communication, and the configuration information accessed is carried out in the acquisition of Trigger services base station from target BS.Subscriber equipment accesses from target BS after obtaining the configuration information of target BS, from target BS access procedure, keeps the communication with network side by serving BS.

Further, after subscriber equipment successfully accesses from target BS, target BS first notification service base station user equipment accesses from target BS, if serving BS reports according to the follow-up measurement of subscriber equipment and finds that wireless link worsens further, then serving BS stops continuing to communicate by current ink and subscriber equipment, and data are directly transmitted to target BS, and notify that data surface is transferred to target BS side by core net, chain of command anchor point function also transfers to target BS simultaneously.On the other hand, subscriber equipment is after target BS access, after target BS reports the wireless link situation judging UE enough stable by the measurement of UE, data surface is transferred to target BS side by notice core network gateway, and chain of command anchor point function also transfers to target BS simultaneously.

The scheme of the embodiment of the present invention is applicable to intra-system handover and intersystem handover, (intersystem handover is such as switched to 5G access net system or Wifi/Gifi system etc. from LTE system).

Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.

As shown in Figure 1, the system that the embodiment of the present invention one connects comprises: subscriber equipment 10, serving BS 20 and target BS 30.

Subscriber equipment 10, the target cell information for the set up the condition by meeting the second link reports serving BS by the first link; The target BS receiving serving BS transmission is the second link circuit resource of user equipment allocation, connects, and do not disconnect the first link between serving BS according to the second link circuit resource and target BS.

Serving BS 20, for receiving the target cell information meeting the set up the condition of the second link that subscriber equipment sends by the first link; Trigger target base station is that the second link assignment resource set up by subscriber equipment, and is the resource notification subscriber equipment of user equipment allocation by target BS.

Target BS 30, for receive the serving BS of subscriber equipment notice after, for the second link assignment resource set up by subscriber equipment; The the second link assignment resource set up for subscriber equipment is passed through subscriber equipment by serving BS.

Wherein, the subscriber equipment of the embodiment of the present invention can be monitored multiple community simultaneously, and measures multiple community simultaneously.

Such as, can built-in multiple transceiver in a user device, these transceivers are managed by same high level;

Also such as, if community, Serving cell and Target cell are co-frequency cells, also by improving terminal baseband disposal ability, a set of transceiver implementation can be adopted.

In force, serving BS can in advance by set up the condition that the first link is user device configuration second link;

Accordingly, subscriber equipment obtains the condition triggering and set up the second link from serving BS by the first link, and meet set up the condition of the second link after, the target cell information meeting the set up the condition of the second link is reported serving BS by the first link.

Wherein, the set up the condition for the second link can be serving BS is user device configuration by dedicated signaling in advance, also can be that serving BS is broadcasted in Serving cell by system broadcast message,

Wherein, what the set up the condition of the second link included but not limited in following condition is part or all of:

1) current service cell signal quality is lower than the first thresholding;

2) the second link target cell signal quality is higher than the second thresholding;

3) the second link target cell signal quality value is higher than current service cell signal quality value.

After establishing the second link, because subscriber equipment does not disconnect the first link, so subscriber equipment can be measured Serving cell and Target cell by the first link and the second link simultaneously.

In force, chain of command and downlink user face can be remained on Serving cell by subscriber equipment, and Serving cell or Target cell can be selected as required in uplink user face.

Wherein, core network gateway is that the upstream port number that subscriber equipment carrying distributes sends to target BS by Serving cell.

Accordingly, Target cell, before Target cell is transferred in the uplink user face of subscriber equipment, forwards the upstream data of subscriber equipment according to the upstream port number of serving BS notice.

Preferably, two kinds of activated user equipment are had chain of command and downlink user face to be transferred to the mode of Target cell.

Mode one, subscriber equipment are measured Serving cell by the first link, and when measurement result meets the release report condition of the first link, and the chain of command of subscriber equipment in Serving cell and downlink user face are transferred to Target cell by notification service community.

Accordingly, the chain of command of subscriber equipment in Serving cell and downlink user face, according to the measurement result for the first link of user equipment to report, after determining to need release first link, are transferred to target BS by serving BS.

Mode two, subscriber equipment are measured Serving cell by the first link, and when measurement result meets the release report condition of the first link, and the chain of command of subscriber equipment in Serving cell and downlink user face are transferred to Target cell by notification target community.

Accordingly, Target cell is according to the measurement result for the first link of user equipment to report, and after determining to need release first link, the chain of command of subscriber equipment in Serving cell and downlink user face are transferred to Target cell by notification service base station;

The chain of command of subscriber equipment in Serving cell and downlink user face, after receiving the notice from release first link of target BS, are transferred to target BS by serving BS.

Measurement result in foregoing can be RSRQ(Reference Signal Receiving Quality, Reference Signal Received Quality value) and/or RSRP (Reference Signal Receiving Power, Reference Signal Received Power).

In aforesaid way one and mode two, serving BS can be the release report condition of user device configuration first link, and accordingly, subscriber equipment obtains the release report condition of the first link from serving BS by the first link.

It is part or all of that the release report condition of the first link includes but not limited in following condition:

Current service cell signal strength values is lower than the 3rd thresholding;

Current service cell signal quality value is lower than the 4th thresholding.

Except above-mentioned two kinds of modes, subscriber equipment can also be measured Serving cell by the second link, and when measurement result meets the release report condition of the first link, the chain of command of subscriber equipment in Serving cell and downlink user face are transferred to Target cell by notification target community, or the chain of command of subscriber equipment in Serving cell and downlink user face are transferred to Target cell by notification service community.

The release report condition of the first link at this moment include but not limited to following in part or all of:

Current goal cell signal strength value is higher than the 5th thresholding;

Current goal cell signal quality value is higher than the 6th thresholding.

Wherein, subscriber equipment, when there being upstream data to need to send, can select a community from Serving cell and Target cell, and sends upstream data by the community selected.

Select the concrete mode of community to have a lot, enumerate several below.

Selection mode one, respectively Serving cell and Target cell to be measured, select according to measurement result the community that signal quality is good.

Selection mode two,

According to descending snr measurement, the community that descending signal to noise ratio is high is selected to carry out uplink.

Selection mode three,

The link used under recording last transmission situation and link uplink retransmission number information, be just switched to link 2 carry out uplink if link 1 transmission exceed certain number of retransmissions.

Wherein, serving BS is the release report condition of user device configuration second link, and accordingly, subscriber equipment obtains the release report condition of the second link from serving BS by the second link.

After subscriber equipment is connected with the first link and the second link establishment at the same time, if meet the release report condition of the second link to the measurement of the second link after, to serving base stations report measurement result, and after receiving the release notice of serving BS, discharge the second link.

Accordingly, serving BS is according to the metrical information for the second link, and after determining to need release second link, notifying user equipment discharges the second link.

It is part or all of that the release report condition of the second link includes but not limited in following condition:

Current goal cell signal strength value is lower than the 5th thresholding;

Current goal cell signal quality value is lower than the 6th thresholding.

As shown in Figure 2, the subscriber equipment in the system that connects of the embodiment of the present invention two comprises: the first sending module 200 and the first processing module 210.

First sending module 200, the target cell information for the set up the condition by meeting the second link reports serving BS by the first link;

First processing module 210, the target BS sent for receiving serving BS is the second link circuit resource of user equipment allocation, connects, and do not disconnect the first link between serving BS according to the second link circuit resource and target BS.

Preferably, the first processing module 210 also for:

Before the target cell information meeting the set up the condition of the second link is reported serving BS by the first link, obtained the condition triggering and set up the second link from serving BS by the first link; Meet set up the condition of the second link after, the target cell information meeting the set up the condition of the second link is reported serving BS by the first link.

Preferably, the first processing module 210 also for:

Connect according to the second link circuit resource and target BS, and after not disconnecting the first link between serving BS, by the first link, Serving cell is measured, and when measurement result meets the release report condition of the first link, the chain of command of subscriber equipment in Serving cell and downlink user face are transferred to Target cell by notification service community; Or

Connect according to the second link circuit resource and target BS, and after not disconnecting the first link between serving BS, by the first link, Serving cell is measured, and when measurement result meets the release report condition of the first link, the chain of command of subscriber equipment in Serving cell and downlink user face are transferred to Target cell by notification target community.

Preferably, the first processing module 210 also for:

Obtained the release report condition of the first link from serving BS by the first link.

Preferably, the first processing module 210 also for:

Connect according to the second link circuit resource and target BS, and after not disconnecting the first link between serving BS, when needing there being upstream data to send, from Serving cell and Target cell, selecting a community, and send upstream data by the community selected.

Preferably, the first processing module 210 also for:

Obtained the release report condition of the second link from serving BS by the first link; After the release report condition measurement of the second link being met to the second link, to serving base stations report measurement result, and after receiving the release notice of serving BS, discharge the second link.

As shown in Figure 3, the serving BS in the system that connects of the embodiment of the present invention three comprises: the second sending module 300 and the second processing module 310.

Second sending module 300, for receiving the target cell information meeting the set up the condition of the second link that subscriber equipment sends by the first link;

Second processing module 310, be that the second link assignment resource set up by subscriber equipment for trigger target base station, and be the resource notification subscriber equipment of user equipment allocation by target BS, to make subscriber equipment connect according to the second link circuit resource and target BS, and do not disconnect the first link between serving BS.

Preferably, the second processing module 310 also for:

By first link receive subscriber equipment send meet the target cell information of the set up the condition of the second link before, be the set up the condition of user device configuration second link.

Preferably, the second processing module 310 also for:

Trigger target base station is after the second link assignment resource set up by subscriber equipment, be that the upstream port number that subscriber equipment carrying distributes sends to target BS by core network gateway, to make target BS before Target cell is transferred in the uplink user face of subscriber equipment, forward the upstream data of subscriber equipment according to upstream port number.

Preferably, the second processing module 310 also for:

After by target BS being the resource notification subscriber equipment of user equipment allocation, according to the measurement result for the first link of user equipment to report, after determining to need release first link, the chain of command of subscriber equipment in Serving cell and downlink user face are transferred to target BS; Or

After by target BS being the resource notification subscriber equipment of user equipment allocation, after receiving the notice from release first link of target BS, the chain of command of subscriber equipment in Serving cell and downlink user face are transferred to target BS.

Preferably, the second processing module 310 also for:

For the release report condition of user device configuration first link, to make subscriber equipment after the release report condition of the first link meets, report the metrical information for the first link.

Preferably, the second processing module 310 also for:

For the release report condition of user device configuration second link, to make subscriber equipment after the release report condition of the second link meets, report the metrical information for the second link; According to the metrical information for the second link, after determining to need release second link, notifying user equipment discharges the second link.

As shown in Figure 4, the target BS in the system that connects of the embodiment of the present invention four comprises: receiver module 400 and the 3rd processing module 410.

Receiver module 400, for receive the serving BS of subscriber equipment notice after, for the second link assignment resource set up by subscriber equipment;

3rd processing module 410, for the set up for subscriber equipment second link assignment resource is passed through subscriber equipment by serving BS, to make subscriber equipment connect according to the second link circuit resource and target BS, and do not disconnect the first link between serving BS.

Preferably, the 3rd processing module 410 also for:

After subscriber equipment sets up the second link assignment resource, before Target cell is transferred in the uplink user face of subscriber equipment, forward the upstream data of subscriber equipment according to the upstream port number of serving BS notice.

Preferably, the 3rd processing module 410 also for:

According to the measurement result for the first link of user equipment to report, after determining to need release first link, the chain of command of subscriber equipment in Serving cell and downlink user face are transferred to Target cell by notification service base station.

In force, different situations, serving BS also may be target BS, target BS is possibility serving BS also, so the functional module of the serving BS of Fig. 2 and the target BS of Fig. 3 can be combined in a base station, according to different applicable cases, select to run corresponding functional module.

As shown in Figure 5, the subscriber equipment in the system that connects of the embodiment of the present invention five comprises:

Processor 500, for reporting serving BS by the target cell information meeting the set up the condition of the second link by the first link by transceiver 510; It is the second link circuit resource of user equipment allocation that transceiver 510 receives the target BS that serving BS sends; Connected according to the second link circuit resource and target BS by transceiver 540, and do not disconnect the first link between serving BS;

Transceiver 510, for receiving under control of the processor 500 and sending data;

Transceiver 540, for receiving under control of the processor 500 and sending data.

Preferably, processor 500 also for:

Wherein, in Figure 5, bus architecture can comprise interconnected bus and the bridge of any amount, and the various electrical chains of the memory that the one or more processor specifically represented by processor 500 and memory 520 represent are connected together.Other electrical chains various of such as ancillary equipment, pressurizer and management circuit etc. and so on can also be connected together by bus architecture, and these are all known in the field, therefore, are no longer described further it herein.Bus interface provides interface.Transceiver 510, transceiver 540 can be multiple elements, namely comprise transmitter and receiver, are provided for the unit communicated with other devices various over a transmission medium.For different subscriber equipmenies, user interface 530 can also be can external in connect the interface needing equipment, the equipment of connection includes but not limited to keypad, display, loud speaker, microphone, joystick etc.

Processor 500 is in charge of bus architecture and common process, and memory 520 can the data that use when executable operations of storage of processor 500.

As shown in Figure 6, the serving BS in the system that connects of the embodiment of the present invention six comprises:

Processor 600, for controlling the target cell information meeting the set up the condition of the second link that transceiver 610 is sent by the first link reception subscriber equipment; Trigger target base station is that the second link assignment resource set up by subscriber equipment, and be the resource notification subscriber equipment of user equipment allocation by target BS, to make subscriber equipment connect according to the second link circuit resource and target BS, and do not disconnect the first link between serving BS;

Transceiver 610, for receiving and sending data under the control of processor 600.

Preferably, processor 600 also for:

Wherein, in figure 6, bus architecture can comprise interconnected bus and the bridge of any amount, and the various electrical chains of the memory that the one or more processor specifically represented by processor 600 and memory 620 represent are connected together.Other electrical chains various of such as ancillary equipment, pressurizer and management circuit etc. and so on can also be connected together by bus architecture, and these are all known in the field, therefore, are no longer described further it herein.Bus interface provides interface.Transceiver 610 can be multiple element, namely comprises transmitter and receiver, is provided for the unit communicated with other devices various over a transmission medium.Processor 600 is in charge of bus architecture and common process, and memory 620 can the data that use when executable operations of storage of processor 600.

Processor 600 is in charge of bus architecture and common process, and memory 620 can the data that use when executable operations of storage of processor 600.

As shown in Figure 7, the target BS in the system that connects of the embodiment of the present invention seven comprises:

Processor 700, for received the serving BS of subscriber equipment by transceiver 710 notice after, for the second link assignment resource set up by subscriber equipment; By transceiver 710, the second link assignment resource set up for subscriber equipment is passed through subscriber equipment by serving BS, to make subscriber equipment connect according to the second link circuit resource and target BS, and do not disconnect the first link between serving BS;

Transceiver 710, for receiving and sending data under the control of processor 700.

Preferably, processor 700 also for:

Wherein, in the figure 7, bus architecture can comprise interconnected bus and the bridge of any amount, and the various electrical chains of the memory that the one or more processor specifically represented by processor 700 and memory 720 represent are connected together.Other electrical chains various of such as ancillary equipment, pressurizer and management circuit etc. and so on can also be connected together by bus architecture, and these are all known in the field, therefore, are no longer described further it herein.Bus interface provides interface.Transceiver 710 can be multiple element, namely comprises transmitter and receiver, is provided for the unit communicated with other devices various over a transmission medium.Processor 700 is in charge of bus architecture and common process, and memory 720 can the data that use when executable operations of storage of processor 700.

Processor 700 is in charge of bus architecture and common process, and memory 720 can the data that use when executable operations of storage of processor 700.

In force, different situations, serving BS also may be target BS, target BS is possibility serving BS also, so the functional module of the serving BS of Fig. 6 and the target BS of Fig. 7 can be combined in a base station, according to different applicable cases, select to run corresponding functional module.

Based on same inventive concept, the method connected is additionally provided in the embodiment of the present invention, the principle of dealing with problems due to method is similar to the system that the embodiment of the present invention connects, because the enforcement of the method see the enforcement of system, can repeat part and repeat no more.

As shown in Figure 8, the method that the embodiment of the present invention eight connects comprises the following steps:

The target cell information meeting the set up the condition of the second link is reported serving BS by the first link by step 801, subscriber equipment;

The target BS that step 802, subscriber equipment reception serving BS sends is the second link circuit resource of user equipment allocation, connects, and do not disconnect the first link between serving BS according to the second link circuit resource and target BS.

Preferably, subscriber equipment also comprises before the target cell information meeting the set up the condition of the second link is reported serving BS by the first link:

Subscriber equipment obtains the condition triggering and set up the second link from serving BS by the first link;

The target cell information meeting the set up the condition of the second link is reported serving BS by the first link by subscriber equipment, comprising:

Subscriber equipment meet set up the condition of the second link after, the target cell information meeting the set up the condition of the second link is reported serving BS by the first link.

Preferably, subscriber equipment connects according to the second link circuit resource and target BS, and after not disconnecting the first link between serving BS, also comprises:

Subscriber equipment is measured Serving cell by the first link, and when measurement result meets the release report condition of the first link, and the chain of command of subscriber equipment in Serving cell and downlink user face are transferred to Target cell by notification service community; Or

Subscriber equipment is measured Serving cell by the first link, and when measurement result meets the release report condition of the first link, and the chain of command of subscriber equipment in Serving cell and downlink user face are transferred to Target cell by notification target community.

Preferably, subscriber equipment connects according to the second link circuit resource and target BS, and before not disconnecting the first link between serving BS, also comprises:

Subscriber equipment obtains the release report condition of the first link from serving BS by the first link.

Subscriber equipment, when there being upstream data to need to send, selects a community from Serving cell and Target cell, and sends upstream data by the community selected.

Preferably, the method also comprises:

Subscriber equipment obtains the release report condition of the second link from serving BS by the first link;

Subscriber equipment connects according to the second link circuit resource and target BS, and after not disconnecting the first link between serving BS, also comprises:

Subscriber equipment, after the release report condition measurement of the second link being met to the second link, to serving base stations report measurement result, and after receiving the release notice of serving BS, discharges the second link.

As shown in Figure 9, the method that the embodiment of the present invention nine connects comprises the following steps:

Step 901, serving BS receive the target cell information meeting the set up the condition of the second link of subscriber equipment transmission by the first link;

Step 902, serving BS trigger target base station are that the second link assignment resource set up by subscriber equipment, and be the resource notification subscriber equipment of user equipment allocation by target BS, to make subscriber equipment connect according to the second link circuit resource and target BS, and do not disconnect the first link between serving BS.

Preferably, serving BS by first link receive subscriber equipment send meet the target cell information of the set up the condition of the second link before, also comprise:

Serving cell is the set up the condition of user device configuration second link.

Preferably, serving BS trigger target base station is, after the second link assignment resource set up by subscriber equipment, also comprise:

Core network gateway is that the upstream port number that subscriber equipment carrying distributes sends to target BS by Serving cell, to make target BS before Target cell is transferred in the uplink user face of subscriber equipment, forwards the upstream data of subscriber equipment according to upstream port number.

Preferably, serving BS also comprises after by target BS being the resource notification subscriber equipment of user equipment allocation:

The chain of command of subscriber equipment in Serving cell and downlink user face, according to the measurement result for the first link of user equipment to report, after determining to need release first link, are transferred to target BS by serving BS; Or

Preferably, the method also comprises:

Serving BS is the release report condition of user device configuration first link, to make subscriber equipment after the release report condition of the first link meets, reports the metrical information for the first link.

Preferably, the method also comprises:

Serving BS is the release report condition of user device configuration second link, to make subscriber equipment after the release report condition of the second link meets, reports the metrical information for the second link;

Serving BS is according to the metrical information for the second link, and after determining to need release second link, notifying user equipment discharges the second link.

As shown in Figure 10, the method that the embodiment of the present invention ten connects comprises the following steps:

After step 1010, target BS receive the notice of the serving BS of subscriber equipment, for the second link assignment resource set up by subscriber equipment;

The the second link assignment resource set up for subscriber equipment is passed through subscriber equipment by serving BS by step 1020, target BS, to make subscriber equipment connect according to the second link circuit resource and target BS, and does not disconnect the first link between serving BS.

Preferably, Target cell is, after the second link assignment resource set up by subscriber equipment, also comprise:

Target cell, before Target cell is transferred in the uplink user face of subscriber equipment, forwards the upstream data of subscriber equipment according to the upstream port number of serving BS notice.

Target cell is according to the measurement result for the first link of user equipment to report, and after determining to need release first link, the chain of command of subscriber equipment in Serving cell and downlink user face are transferred to Target cell by notification service base station.

Enumerate several different situation below respectively, the solution of the present invention is described.

Link establishment release and chain of command anchor point transfer scheme 1.

As shown in figure 11, the method that the embodiment of the present invention 11 connects comprises the following steps:

Step 1101, subscriber equipment, after the access of current service cell, obtain the frequency of neighbor cell and the configuration information (adjacent cell information comprises the community of identical standard and the community of different systems) of synchronizing signal aspect from Current Serving BTS.

Meanwhile, subscriber equipment can carry out data communication by current service cell and network.

If subscriber equipment have activated low delay transmission service in addition, serving BS is that the measurement of user device configuration low threshold reports.

When step 1102, subscriber equipment find that other communities meet the set up the condition of the second link around by measuring, the the second link target cell ID self detected by measurement report message, and the information reporting such as Target cell signal strength signal intensity is to Current Serving BTS.

Wherein, set up the condition for the second link can be serving BS is user device configuration by dedicated signaling in advance, also can be that serving BS is broadcasted in Serving cell by system broadcast message, can also configure voluntarily in advance by subscriber equipment, the set up the condition of concrete second link comprises: 1) current service cell signal quality is lower than certain thresholding; 2) the second link target cell signal quality is higher than certain thresholding 3) the second link target cell signal quality is higher than current service cell signal quality.

According to customer equipment context information, serving BS judges that current user equipment have activated low delay transmission service, serving BS trigger target base station is that subscriber equipment accesses Resources allocation from target BS (base station judges that subscriber equipment activates the method for low delay transmission service, comprise the qos parameter according to the built power carrying of subscriber equipment, or according to the indication information obtained from subscriber equipment or core net, such as " low delay transmission service activates instruction ", and the low mobility user equipment prolonging transmission service of this programme hypothesis activation must possess the ability communicated with two base stations) simultaneously simultaneously.

The measurement reporting information that step 1103, basis obtain from subscriber equipment, serving BS carries out Resourse Distribute as the access that the agent advertisement target BS of current user equipment is subscriber equipment, comprising the beared information of the current activation of subscriber equipment, low delay instruction, Target Cell Identifier information, and the Security Context Information that subscriber equipment uses, core network gateway is the upstream port number (such as TEID(Tunnel Endpoint ID, tunnel endpoint identifier) that subscriber equipment carrying distributes).

Step 1104, target BS is according to after the resource allocation request received from serving BS, judging that Current resource distributes according to low delay instruction is for opening low delay transmission characteristic subscriber equipment (except being indicated by low delay, serving BS also can by configuring special QoS(Quality ofService for subscriber equipment carrying, service quality) parameter, implicit expression instruction current user equipment opens low delay transmission characteristic), target BS is carrying out call access control by allocating private resource mode (low delay transmission characteristic is supported in hypothetical target base station) in advance here, ensure that subscriber equipment is had when being accessed by target BS and can support that low deferred traffic transmits.

Step 1105, to receive successfully, the resource that target BS will distribute for subscriber equipment access, notification service base station, the information also comprising Target Cell Identifier information in addition and carrying is received, receiving low delay carrying to cause the subframe structure of base station to Target cell to adjust, thus meet after subscriber equipment moves to Target cell and can obtain low delay transmission service, in addition when target BS is different from serving BS standard, target BS is subscriber equipment access resource allocation and relevant parameter according to self standard.

Target BS, by the current Serving cell of subscriber equipment, is that the logical and parameter of resource that subscriber equipment access distributes knows subscriber equipment by step 1106, serving BS, comprising the beared information of Target cell instruction and target BS receiving.

Second transceiver opened by step 1107, subscriber equipment, and initiates the synchronizing process to Target cell under target BS by second transceiver.In the process, subscriber equipment continues to be maintained by by first transceiver the transmission that Serving cell and network carry out business datum.

Step 1108, subscriber equipment use target BS to be the access procedure that its private resource distributed initiates to Target cell.

The identity information of self and measurement reporting information are sent to target BS by step 1109, subscriber equipment.Target BS confirms subscriber equipment identity according to subscriber equipment identity information.

Step 1110, when the measurement of subscriber equipment to Serving cell meets the release report condition (such as serving cell signal quality lower than certain threshold after) of the first link, measurement result is reported serving BS by subscriber equipment.Serving BS reports according to the measurement of subscriber equipment to Target cell and judges whether triggering first link dispose procedure.

Wherein, the release report condition of the first link can be serving BS is user device configuration by dedicated signaling in advance, also can be that serving BS is broadcasted in Serving cell by system broadcast message.

Step 1111, serving BS report according to the measurement of subscriber equipment to Target cell or reach maximum retransmission according to MAC layer between subscriber equipment and serving BS, judge that the radio link Quality Down of subscriber equipment and Target cell is to the degree being not suitable for continuing to maintain.

Chain of command and user face anchor point (the comprising uplink and downlink) function of step 1112, serving BS activated user equipment transfer to target BS, trigger downlink data for subscriber equipment to the repeating process of target BS simultaneously, comprise and set up forwarding tunnel, and indicate the number information of downlink data to be passed.For upstream data, if subscriber equipment finds to go wrong with the uplink of serving BS, then subscriber equipment can by the connection transmit ascending data set up between target BS.If target BS receives the transmitting uplink data of subscriber equipment before chain of command and user face anchor point transfer to target BS, then the core network gateway port numbers (such as TEID) that target BS can be corresponding according to the subscriber equipment carrying obtained in step 3 carries out upstream data forwarding.

Step 1113, target BS confirm that chain of command and user face anchor point are transferred to from after one's death, and target BS notice core network control surface and user face anchor point transfer to target BS.

After the chain of command of step 1114, core net confirmation subscriber equipment and user face anchor point shift, start to target BS converting downlink data.

Step 1115, core net notification target base station chain of command and user face anchor point have shifted.

Step 1116, serving BS notification target base station chain of command and user face anchor point have shifted.

Step 1117, serving BS are released to the resource that subscriber equipment distributes in Serving cell, and the context of releasing user equipment.

Wireless link between the release of step 1118, target BS notifying user equipment and Serving cell, and activated user equipment release serving BS is the resource of user device configuration, after serving BS Resources allocation discharges by subscriber equipment, close originally for carrying out with Serving cell the transceiver that communicates.

Link establishment release and chain of command anchor point transfer scheme 2.

As shown in figure 12, the method that the embodiment of the present invention 12 connects comprises the following steps:

Step 1201, subscriber equipment, after the access of current service cell, obtain the frequency of neighbor cell and the configuration information (adjacent cell information comprises the community of identical standard and the community of different systems) of synchronizing signal aspect from Current Serving BTS.

When step 1202, subscriber equipment find that other communities meet the set up the condition of the second link around by measuring, the the second link target cell ID self detected by measurement report message, and the information reporting such as Target cell signal strength signal intensity is to Current Serving BTS.

Wherein, the set up the condition for the second link can be serving BS by dedicated signaling is user device configuration in advance, also can be that serving BS is broadcasted in Serving cell by system broadcast message, can also configure voluntarily in advance by subscriber equipment.

The set up the condition of concrete second link comprises: 1) current service cell signal quality is lower than certain thresholding; 2) the second link target cell signal quality is higher than certain thresholding 3) the second link target cell signal quality is higher than current service cell signal quality.According to customer equipment context information, serving BS judges that current user equipment have activated low delay transmission service, serving BS trigger target base station is that subscriber equipment accesses Resources allocation from target BS (base station judges that subscriber equipment activates the method for low delay transmission service, comprise the qos parameter according to the built power carrying of subscriber equipment, or according to the indication information obtained from subscriber equipment or core net, such as " low delay transmission service activates instruction ").

The measurement reporting information that step 1203, basis obtain from subscriber equipment, serving BS carries out Resourse Distribute as the access that the agent advertisement target BS of current user equipment is subscriber equipment, comprising the beared information of the current activation of subscriber equipment, low delay instruction, Target Cell Identifier information, and the Security Context Information that subscriber equipment uses, core network gateway is the upstream port number (such as TEID) that subscriber equipment carrying distributes.

Step 1204, target BS is according to after the resource allocation request received from serving BS, judging that Current resource distributes according to low delay instruction is for opening low delay transmission characteristic subscriber equipment (except being indicated by low delay, serving BS also can by configuring special qos parameter for subscriber equipment carrying, implicit expression instruction current user equipment opens low delay transmission characteristic), target BS is carrying out call access control by allocating private resource mode (low delay transmission characteristic is supported in hypothetical target base station) in advance here, ensure that subscriber equipment is had when being accessed by target BS and can support that low deferred traffic transmits.

Step 1205, to receive successfully, the resource notification serving BS that target BS will distribute for subscriber equipment access, the information also comprising Target Cell Identifier information in addition and carrying is received, receiving low delay carrying to cause the subframe structure of base station to Target cell to adjust, thus meets after subscriber equipment moves to Target cell and can obtain low delay transmission service.In addition, when target BS is different from serving BS standard, target BS is subscriber equipment access resource allocation and relevant parameter according to self standard.

Step 1206, serving BS pass through the current Serving cell of subscriber equipment, are resource and the parameter notifications subscriber equipment of subscriber equipment access distribution, comprising the beared information that Target cell instruction and target BS are received by target BS.

Second transceiver opened by step 1207, subscriber equipment, and initiates the synchronizing process to Target cell under target BS by second transceiver.In the process, subscriber equipment continues to be maintained by by first transceiver the transmission that Serving cell and network carry out business datum.

Step 1208, subscriber equipment use target BS to be the access procedure that its private resource distributed initiates to Target cell.

Step 1209, set up connection between subscriber equipment and target BS, connect in process of establishing second, the measurement report condition that triggering first link discharges can directly configure to subscriber equipment by target BS.

Step 1210, when meet the first link release report condition after (such as, after the signal quality of Target cell exceedes certain threshold, or the signal quality of Target cell adds certain deviation amount higher than serving cell signal quality), measurement reported result is sent to target BS by subscriber equipment.If target BS receives the transmitting uplink data of subscriber equipment before chain of command/user face anchor point transfers to target BS, then the core network gateway port numbers (such as TEID) that target BS can be corresponding according to the subscriber equipment carrying obtained in step 3 carries out upstream data forwarding.

Step 1211, judge to meet the release conditions of the first link according to the measurement reported result target BS of subscriber equipment after, the chain of command user face transfer of transmission is indicated to serving BS, and the chain of command of activated user equipment and user face anchor point transfer to the process of target BS.

After step 1212, serving BS confirm that the chain of command of UE and user face anchor point are transferred to target BS, chain of command and the user face anchor point function of serving BS activated user equipment transfer to target BS, trigger downlink data for subscriber equipment to the repeating process of target BS simultaneously, comprise and set up forwarding tunnel, and indicate the number information of downlink data to be passed.For upstream data, if subscriber equipment finds to go wrong with the uplink of serving BS, then subscriber equipment can by the connection transmit ascending data set up between target BS.

Step 1213, target BS confirm that chain of command and user face anchor point are transferred to from after one's death, and target BS notice core network control surface and user face anchor point transfer to target BS.

After the chain of command of step 1214, core net confirmation subscriber equipment and user face anchor point shift, start to target BS converting downlink data.

Step 1215, core net notification target base station chain of command and user face anchor point have shifted.

Step 1216, serving BS notification target base station chain of command and user face anchor point have shifted.

Step 1217, serving BS are released to the resource that subscriber equipment distributes in Serving cell, and the context of releasing user equipment.

Wireless link between the release of step 1218, target BS notifying user equipment and Serving cell, and activated user equipment release serving BS is the resource of user device configuration, after serving BS Resources allocation discharges by subscriber equipment, close originally for carrying out with Serving cell the transceiver that communicates.

Link establishment release and chain of command anchor point transfer scheme 3.

As shown in figure 13, the method that the embodiment of the present invention 13 connects comprises the following steps:

Step 1301, subscriber equipment, after the access of current service cell, obtain the frequency of neighbor cell and the configuration information of synchronizing signal aspect from Current Serving BTS.

Meanwhile, subscriber equipment carries out data communication by current service cell and network.If subscriber equipment have activated low delay transmission service in addition, serving BS is that the measurement of user device configuration low threshold reports.

When step 1302, subscriber equipment find that other communities meet the set up the condition of the second link around by measuring, the the second link target cell ID self detected by measurement report message, and the information reporting such as Target cell signal strength signal intensity is to Current Serving BTS.

The set up the condition of concrete second link comprises: 1) current service cell signal quality is lower than certain thresholding; 2) the second link target cell signal quality is higher than certain thresholding 3) the second link target cell signal quality is higher than current service cell signal quality.According to customer equipment context information, serving BS judges that current user equipment have activated low delay transmission service, serving BS trigger target base station is that subscriber equipment accesses Resources allocation from target BS (base station judges that subscriber equipment activates the method for low delay transmission service, comprise the qos parameter according to the built power carrying of subscriber equipment, or according to the indication information obtained from subscriber equipment or core net, such as " low delay transmission service activates instruction ", and the low mobility user equipment prolonging transmission service of this programme hypothesis activation must possess the ability communicated with two base stations) simultaneously simultaneously.

The measurement reporting information that step 1303, basis obtain from subscriber equipment, serving BS carries out Resourse Distribute as the access that the agent advertisement target BS of current user equipment is subscriber equipment, comprising the beared information of the current activation of subscriber equipment, low delay instruction, Target Cell Identifier information, and the Security Context Information that subscriber equipment uses, core network gateway is the upstream port number (such as TEID) that subscriber equipment carrying distributes.

Step 1304, target BS is according to after the resource allocation request received from serving BS, judging that Current resource distributes according to low delay instruction is for opening low delay transmission characteristic subscriber equipment (except being indicated by low delay, serving BS also can by configuring special qos parameter for subscriber equipment carrying, implicit expression instruction current user equipment opens low delay transmission characteristic), target BS is carrying out call access control by allocating private resource mode (low delay transmission characteristic is supported in hypothetical target base station) in advance here, ensure that subscriber equipment is had when being accessed by target BS and can support that low deferred traffic transmits.

Step 1305, to receive successfully, the resource notification serving BS that target BS will distribute for subscriber equipment access, the information also comprising Target Cell Identifier information in addition and carrying is received, receiving low delay carrying to cause the subframe structure of base station to Target cell to adjust, thus meets after subscriber equipment moves to Target cell and can obtain low delay transmission service.

Step 1306, serving BS pass through the current Serving cell of subscriber equipment, are the resource notification subscriber equipment that subscriber equipment access distributes, comprising the beared information that Target cell instruction and target BS are received by target BS.

Second transceiver opened by step 1307, subscriber equipment, and initiates the synchronizing process to Target cell under target BS by second transceiver.In the process, subscriber equipment continues to be maintained by by first transceiver the transmission that Serving cell and network carry out business datum.

Step 1308, subscriber equipment use target BS to be the access procedure that its private resource distributed initiates to Target cell.

The identity information of self and measurement reporting information are sent to target BS by step 1309, subscriber equipment.Target BS confirms subscriber equipment identity according to subscriber equipment identity information.

Step 1310, measure report condition (such as Target cell signal quality lower than certain threshold after) when meeting the second link release to subscriber equipment to the measurement of Target cell, measurement result is reported serving BS by subscriber equipment.Serving BS reports according to the measurement of subscriber equipment to Target cell and judges whether triggering second link dispose procedure.Wherein to measure report condition can be serving BS by dedicated signaling is user device configuration in advance, also can to configure in for user equipment allocation second link access-in resource process by target BS simultaneously.

After step 1311, serving BS judge to need release side second link, the configuration that notifying user equipment release maintenance second link is relevant, after subscriber equipment is subject to the link instruction of release Target cell, discharges the second link and keep relevant configuration and close second being radio-frequency module.

Step 1312, serving BS send release access-in resource Indication message to target BS, wherein carry the identification information of target UE.

Step 1313, target BS, according to the identification information of the target UE obtained, are released to eat dishes without rice or wine private resource and mark that target UE distributes, and after release completes, send resource Release complete to serving BS.

Content as can be seen from above: the target cell information meeting the set up the condition of the second link is reported serving BS by the first link by embodiment of the present invention subscriber equipment; And the target BS receiving serving BS transmission is the second link circuit resource of user equipment allocation, connects, and do not disconnect the first link between serving BS according to the second link circuit resource and target BS.Because subscriber equipment can be communicated with two base station parallel by two links simultaneously, and have mutual between two base stations, thus the data-transmission interruptions caused when avoiding direct-cut operation, reduce the impact that data transfer delay maximum jitter performance index are caused when direct-cut operation, also improve efficiency of transmission and systematic function further.

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 the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.

The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of 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 square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

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

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

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

Claims

1. the method connected, is characterized in that, the method comprises:

2. the method for claim 1, is characterized in that, described subscriber equipment also comprises before the target cell information meeting the set up the condition of the second link is reported serving BS by the first link:

3. the method for claim 1, is characterized in that, described subscriber equipment connects according to described second link circuit resource and described target BS, and after not disconnecting the first link between described serving BS, also comprises:

4. method as claimed in claim 3, it is characterized in that, described subscriber equipment connects according to described second link circuit resource and described target BS, and before not disconnecting the first link between described serving BS, also comprises:

5. the method for claim 1, is characterized in that, described subscriber equipment connects according to described second link circuit resource and described target BS, and after not disconnecting the first link between described serving BS, also comprises:

6. the method as described in as arbitrary in Claims 1 to 5, it is characterized in that, the method also comprises:

7. the method connected, is characterized in that, the method comprises:

8. method as claimed in claim 7, is characterized in that, described serving BS by the first link receive that subscriber equipment sends meet the target cell information of the set up the condition of the second link before, also comprise:

9. method as claimed in claim 7, it is characterized in that, described serving BS trigger target base station is, after the second link assignment resource set up by described subscriber equipment, also comprise:

10. method as claimed in claim 7, it is characterized in that, target BS for after subscriber equipment described in the resource notification of described user equipment allocation, also comprises by described serving BS:

11. as arbitrary in claim 7 ~ 10 as described in method, it is characterized in that, the method also comprises:

12. as arbitrary in claim 7 ~ 10 as described in method, it is characterized in that, the method also comprises:

13. 1 kinds of methods connected, it is characterized in that, the method comprises:

14. methods as claimed in claim 13, is characterized in that, described Target cell is, after the second link assignment resource set up by described subscriber equipment, also comprise:

15. methods as described in claim 13 or 14, it is characterized in that, described Target cell is, after the second link assignment resource set up by described subscriber equipment, also comprise:

16. 1 kinds of subscriber equipmenies connected, is characterized in that, this subscriber equipment comprises:

17. subscriber equipmenies as claimed in claim 16, is characterized in that, described first processing module also for:

18. subscriber equipmenies as claimed in claim 16, is characterized in that, described first processing module also for:

19. subscriber equipmenies as claimed in claim 18, is characterized in that, described first processing module also for:

20. subscriber equipmenies as claimed in claim 16, is characterized in that, described first processing module also for:

21. as arbitrary in claim 16 ~ 20 as described in subscriber equipment, it is characterized in that, described first processing module also for:

22. 1 kinds of serving BSs connected, is characterized in that, this serving BS comprises:

23. serving BSs as claimed in claim 22, is characterized in that, described second processing module also for:

24. serving BSs as claimed in claim 22, is characterized in that, described second processing module also for:

25. serving BSs as claimed in claim 22, is characterized in that, described second processing module also for:

26. as arbitrary in claim 22 ~ 25 as described in serving BS, it is characterized in that, described second processing module also for:

27. as arbitrary in claim 22 ~ 25 as described in serving BS, it is characterized in that, described second processing module also for:

28. 1 kinds of target BS connected, is characterized in that, this target BS comprises:

29. target BS as claimed in claim 28, is characterized in that, described 3rd processing module also for:

30. target BS as described in claim 28 or 29, is characterized in that, described 3rd processing module also for:

31. 1 kinds of systems connected, is characterized in that, this system comprises: