CN102595533A

CN102595533A - Method for scheduling switched terminal, method for switching terminal and base station

Info

Publication number: CN102595533A
Application number: CN2011100031966A
Authority: CN
Inventors: 张亮亮; 柴丽; 蔺波; 时洁
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2011-01-07
Filing date: 2011-01-07
Publication date: 2012-07-18

Abstract

The invention discloses a method for scheduling a switched terminal, a method for switching a terminal and a base station, belonging to the field of communication technology. The method for scheduling the switched terminal comprises a step that a target base station schedules a terminal from a source base station on a protected subframe. The method for switching the terminal comprises the following steps: the target base station carries out switching optimization according to indication information; the indication information is used for indicating the terminal from the source base station as a disturbed terminal; or the indication information is used for indicating that switching decision carried out on the terminal from the source base station is based on an ABS measurement result; or the indication information is used for indicating that a measurement mode of the terminal from the source base station is ABS measurement; or the indication information is used for indicating the target base station to schedule the terminal from the source base station on the protected subframe; or the indication information is used for indicating scheduling of the terminal from the source base station on a specific subframe.

Description

The method that the terminal that switches is dispatched, the method and the base station of switching

Technical field

The present invention relates to communication technical field, particularly a kind of method that the terminal that switches is dispatched, the method and the base station of switching.

Background technology

In having the network of presence of intercell interference; With LTE (Long Term Evolution; Long Term Evolution) heterogeneous network is an example; Shown in Fig. 1 a, be placed with small base station in macro base station (Macro eNB) coverage, like little base station (Pico), Home eNodeB (HeNB), Home eNodeB (Femto), relay station WAPs such as (Relay).UE (User Equipment, user terminal) in the small base station coverage is under the dual covering of Macro eNB and small base station so.Under this heterogeneous network, UE is connected in the sub-district, and this sub-district is called the Serving cell of UE, and generally can there be one or more sub-districts a base station.

And, open sub-district and the closed user group cell of inserting arranged for the sub-district in the network.The open sub-district of inserting allows free terminal to insert, and closed user group cell only allows some specific terminal to insert.Under heterogeneous network, small base station many times is deployed in the hot spot region, such as the airport, and market, office building, the terminal that is used to receive macro base station.For the open sub-district of inserting; In order to let small base station receive more terminal at hot zones; Can realize letting the terminal at more small base stations edge be linked into small base station through the mode of adding side-play amount to measurement result; But this moment, the signal from macrocell was better than the small base station signal strength signal intensity, so brought interference to the terminal.For closed user group cell; Some is by the open terminal of inserting sub-district (comprising macrocell or Microcell) service; Because do not seal the access authority of sub-district, at the terminal near this sealing during sub-district, though the signal of sealing sub-district is better than current service cell; But can not switch because can't insert, the result has brought strong jamming to the terminal.

Summary of the invention

In order to reduce base station interference, improve communication efficiency, the embodiment of the invention provides a kind of method that the terminal that switches is dispatched, the method and the base station of switching.Said technical scheme is following:

A kind of method that the terminal that switches is dispatched comprises:

Target BS is dispatched the terminal from source base station on protected subframe.

A kind of dispatching method is carried out at the terminal that switches, comprising:

Source base station sends indication information to target BS; Or said source base station receives indication information;

Said source base station carries out handover optimization according to said indication information;

Said indication information is used to indicate said terminal from said source base station for receiving interfered with terminal; Or,

Said indication information is used to indicate the said switch decision that carries out from the terminal of said source base station is based on the ABS measurement result; Or,

It is that ABS measures that said indication information is used to indicate the measurement pattern at said terminal from said source base station; Or,

Said indication information is used to indicate said target BS on said protected subframe, to dispatch said terminal from said source base station; Or,

Said indication information is used in reference to and is shown in the said terminal from said source base station of scheduling on the specific sub-frame; Or

It is the high interference terminal that said indication information is used to indicate said terminal from said source base station; Or

Said indication information is used in reference to said terminal from said source base station and supports ABS to measure.

A kind of method that the terminal is switched comprises:

Target BS carries out handover optimization according to indication information;

Said indication information is used to indicate terminal from source base station for receiving interfered with terminal; Or,

Said indication information is used to indicate target BS on said protected subframe, to dispatch said terminal from said source base station; Or,

Said indication information is used in reference to and is shown in the said terminal from said source base station of scheduling on the specific sub-frame;

A kind of method that the terminal is switched comprises:

Target BS confirms that source base station is the infringement base station of target BS,

Said target BS carries out handover optimization according to the infringement base station of confirming.

A kind of method that the terminal is switched comprises:

Source base station confirms that said source base station is the infringement base station of target BS;

Said source base station carries out handover optimization according to the infringement base station of confirming.

28, a kind of base station is characterized in that, comprising:

Scheduler module is used on protected subframe, dispatching the terminal from source base station;

Said base station also further comprises:

Receiver module is used to receive indication information, and triggers said scheduler module;

Or,

Sending module is used for sending indication information to said source base station, and triggers said scheduler module;

Or,

Infringement base station determination module is used for confirming the infringement base station of source base station for this base station, and triggers said scheduler module.

A kind of base station comprises:

The terminal configuration module is used for according to indication information, carries out handover optimization;

Said base station also comprises:

Sending module is used for sending indication information to target BS, and triggers said terminal configuration module;

Or,

Receiver module is used to receive indication information, and triggers said terminal configuration module.

A kind of base station comprises:

The handover optimization module is used for according to indication information, carries out handover optimization;

Said indication information is used to indicate the base station on said protected subframe, to dispatch said terminal from said source base station; Or,

A kind of base station comprises:

Infringement base station determination module is used for confirming the infringement base station of source base station for this base station,

The handover optimization module is used for carrying out handover optimization according to the infringement base station of confirming.

A kind of base station comprises:

Determination module is used for confirming that said base station is the infringement base station of target BS;

The beneficial effect of the technical scheme that the embodiment of the invention provides is:

Through receiving indication information; And according to the particular content of indication information on protected subframe, dispatch from the infringement base station the terminal; The communication influence that has caused owing to the strong interference that receives the infringement base station when having avoided the terminal in heterogeneous network, to switch; Guarantee the terminal success rate for switching, also reached when being reduced in the terminal and inserting or the purpose of base station to the descending interference of this base station encroached at the terminal when this serving BS is served, improved communication performance.

Description of drawings

In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 a is the common heterogeneous network sketch map that covers of macro base station and small base station;

Fig. 1 b is that a kind of infringement sub-district subframe and terminal of comprising that the embodiment of the invention provides belongs to the contrast sketch map of the sub-district subframe of being injured;

Fig. 2 is the flow chart of a kind of method that the terminal that switches is dispatched of providing of the embodiment of the invention;

The flow chart of Fig. 3 method that to be the another kind that provides of the embodiment of the invention dispatch the terminal that switches;

Fig. 4 is the flow chart of another method that the terminal that switches is dispatched of providing of the embodiment of the invention;

Fig. 5 is the flow chart of another method that the terminal that switches is dispatched of providing of the embodiment of the invention;

Fig. 6 is the flow chart of a kind of method that the terminal that switches is dispatched of providing of the embodiment of the invention;

Fig. 7 is the flow chart of a kind of method that the terminal is switched of providing of the embodiment of the invention;

Fig. 8 is the flow chart of a kind of method that the terminal is switched of providing of the embodiment of the invention;

The structural representation of a kind of base station that Fig. 9 embodiment of the invention provides;

The structural representation of a kind of base station that Figure 10 embodiment of the invention provides;

The structural representation of a kind of base station that Figure 11 embodiment of the invention provides;

The structural representation of a kind of base station that Figure 12 embodiment of the invention provides;

The structural representation of a kind of base station that Figure 13 embodiment of the invention provides;

The structural representation of a kind of base station that Figure 14 embodiment of the invention provides;

The structural representation of a kind of base station that Figure 15 embodiment of the invention provides.

Embodiment

For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that embodiment of the present invention is done to describe in detail further below.

Before the method and base station of introducing the method that the terminal that switches is dispatched provided by the invention, switching, at first rudimentary knowledge of the present invention is carried out concise and to the point introduction:

Those skilled in the art can know that the base station is dispatched specifically the terminal and comprised:

When the base station received the uplink random of self terminal to insert message, descending random accessing message was sent to the terminal in the base station;

It can be to the terminal distribution upstream bandwidth that the terminal is dispatched; Send upstream message or data to be used for the terminal; Perhaps can be to send downstream message to give the terminal; Or be that the specific preamble of terminal distribution perhaps distributes specific RACH resource (specific frequency resource; Specific time-domain resource or specific time-frequency domain resources), perhaps making an appointment or being provided with perhaps provides specific preamble for the terminal sanctified by usagely or distributes specific RACH resource (specific frequency resource, specific time-domain resource or specific time-frequency domain resources).

Wherein, upstream message sends to the base station by the terminal, can be to be used to carry out preamble or the scheduled transmission message (Scheduled Transmission) that inserts at random; Downstream message is sent to the terminal by the base station, can be accidental access response or competition solution message, and present embodiment is not done qualification to this.

The flow chart of a kind of method that the terminal that switches is dispatched that Fig. 2 provides for the embodiment of the invention.The executive agent of the method that dispatch at the terminal to switching of present embodiment is a target BS, and this target BS is the base station that is injured; And cause the base station of descending interference to be the infringement base station to this target BS, as shown in Figure 2, the method that dispatch at the terminal to switching of present embodiment specifically can may further comprise the steps:

201: target BS is dispatched the terminal from source base station on protected subframe.

Particularly; Signal is sent at the running time-frequency resource place of some subframe in the infringement base station; Do not send signal in the subframe on other time or only send few signals, these subframes are called blank subframe (ABS (AlmostBlank Subframe also cries to be close to blank subframe)).The ABS subframe of infringement base station (perhaps encroaching on the sub-district) in the base station that is injured (sub-district perhaps is injured) locate corresponding subframe and be called as this protected subframe and (can also be called low interfering subframe; The perhaps corresponding protected subframe of ABS subframe, the low interfering subframe that the ABS subframe is corresponding.Sometimes directly abbreviated as the ABS subframe, this not the influence technique personnel understand the enforcement of technical scheme, the present invention for simplicity, claims that this subframe is protected subframe in description).Be injured the base station when carrying out downlink communication at this protected subframe place, encroach on the base station accordingly and on the ABS subframe, do not send signal basically, relatively low to the interference of the base station that is injured thus.

For the ease of understanding; Fig. 1 b has provided a kind of infringement sub-district subframe (also can be described as infringement base station subframe) that comprises that the embodiment of the invention provides; With the be injured contrast sketch map of sub-district subframe (also can be described as the base station subframe of being injured) of terminal place; In this instance be the infringement base station with the macro base station, macro base station subordinate's small base station is that example is explained for the base station that is injured, but thisly is not used in qualification the present invention for example.Can see that the subframe of infringement sub-district comprises ABS subframe and common subframe.The subframe of infringement sub-district and small base station and small base station subordinate UE is synchronous.What be positioned at the identical moment with the ABS subframe of infringement sub-district is the protected subframe (perhaps low interfering subframe etc., this no longer repeats the multiple title that possibly exist) of UE, in Fig. 1 b, representes with white spaces.And the subframe of infringement sub-district transceive data is common subframe, and what be positioned at the identical moment with the common subframe in infringement sub-district is the common subframe of UE, is also referred to as the high interference subframe of UE, in Fig. 1 b, representes with the black space.

Certainly, more than be merely for example and be convenient to understand, for UE; Cause the disturbance regime difference of its different subframes to have multiple reason; But more common situation is that promptly non-UE service node causes by other outer node of UE service node, for example before described macro base station; Perhaps from other and the website that the UE serving BS overlaps on frequency domain, present embodiment does not limit this.But the interference that the interference source of some moment UE causes maybe be less, forms protected subframe.Except the ABS subframe of macro base station; MBSFN (Multicast/Broadcast Single Frequency Network with macro base station; Multicast broadcast single frequency network) the corresponding UE subframe of subframe also can be thought low interfering subframe, and this is because macro base station MBSFN subframe does not form interference to adjacent small base station subordinate UE.Present embodiment is not done qualification to the formation reason of low interfering subframe; As long as less than the interference that on common subframe, receives this non-UE service node, then this specific sub-frame promptly can be used as the protected subframe (perhaps claiming low interfering subframe etc.) of UE or its access website in the interference that receives non-UE service node on a certain specific sub-frame for this UE or its access website.

Be not in embodiments of the present invention all protected subframes be protected subframe all by system configuration; Protected sub-frame configuration can be: the part in the protected subframe (subclass).That is to say, only the part of its ABS subframe is notified to the base station that is injured when the infringement base station is can be between the base station mutual, make the base station that is injured to use the corresponding protected subframe of that part of ABS subframe of infringement base station notice to carry out said method.

The method that present embodiment provides; Be injured the base station through on protected subframe the scheduling from the infringement base station the terminal; Reached to be reduced in and encroached on the purpose of base station when inserting the descending interference of this base station; The communication influence that has caused owing to the strong interference that receives the infringement base station when having avoided the terminal in heterogeneous network, to switch; Guarantee the terminal success rate for switching, also reached when being reduced in the terminal and inserting or the purpose of base station to the descending interference of this base station encroached at the terminal when this serving BS is served, improved communication performance.

The flow chart of a kind of method that the terminal that switches is dispatched that Fig. 3 provides for the embodiment of the invention.The mutual both sides of the method that dispatch at the terminal to switching of present embodiment are respectively target BS and source base station; Wherein target BS is the base station that is injured; Source base station is the corresponding infringement base station of target BS; The terminal from source base station in the present embodiment specifically is meant the terminal that switches to target BS from source base station, can be that a plurality of terminals also can be single terminals.Method shown in Figure 3, that dispatch at the terminal to switching of present embodiment specifically can may further comprise the steps:

301: target BS receives the indication information from source base station;

In the present embodiment, this indication information is that source base station sends to target BS when mutual and received by target BS between the base station, and preferably, this indication information can be contained in the base station configuration updating information.

In embodiments of the present invention; The indication information that this target BS receives can also be from OAM (Operation Administration and Maintenance; Operation, management, safeguard) indication information or from the indication information of MME (Mobility Management Entity, mobile management nodes).

Wherein, when this indication information was the indication information from OAM, particularly, can be OAM indicates (for example ECGI, EvolvedCell Global Identifier) to the sub-district that target BS sends this indication information and corresponding source base station.

When this indication information is the indication information from MME, particularly, can be that source base station sends indication information and gives MME, send to target BS by MME again.For example; In the S1 handoff procedure, MME sends handoff request message and gives target BS after receiving the handoff request message of source base station; Comprise said indication information in the handoff request message that this source base station sends, comprised said indication information in the handoff request message that perhaps MME sends.

Particularly, Indication message can in following any one:

A, this indication information are used to indicate terminal from this source base station for receiving interfered with terminal; Promptly this indication information is used for the notification target base station, and all terminals from source base station are and receive interfered with terminal.Especially, all are from the terminal that source base station switches to target BS and receive interfered with terminal.Based on this indication information, working as source base station later on will switch to target BS to source base station subordinate's terminal, and said terminal must be one and receive interfered with terminal.Preferably, this receives interfered with terminal can be the terminal that under the target BS service, receives the infringement base station interference, or under the target BS service, receives the terminal that source base station disturbs, or the terminal that under the target BS service, receives the 3rd base station interference.

When the said interfered with terminal that receives is the terminal that under the target BS service, receives the 3rd base station interference, further, the base station that the sub-district that this indication information can also comprise the 3rd base station indicates (ECGI) or the 3rd base station indicates (eNB ID).The scene of this moment can be the terminal when source base station switches to target BS, can receive the interference of the 3rd base station, and wherein, target BS, source base station are macro base station, and the 3rd base station is HeNB.

Further, when this indication information was contained in handoff request message, this indication information was used for the notification target base station, and the terminal that this source base station request is switched is for receiving interfered with terminal.

B, this indication information are used to indicate the switch decision from the terminal of this source base station are based on the ABS measurement result; Promptly this indication information is used for the notification target base station, and to all terminals from source base station, source base station all can carry out switch decision according to the ABS measurement result.When this indication information was contained in handoff request message, this indication information was used for the notification target base station, and the switch decision at the terminal that this source base station request is switched is based on the ABS measurement result.

It is that ABS measures that C, this indication information are used to indicate the measurement pattern from the terminal of this source base station; Particularly, this indication information is that ABS measures for the pattern of under this source base station service, carrying out the neighbor cell measurement from the terminal of this source base station; Or this indication information carries out the neighbor cell measurement for this terminal from this source base station after switching to this target BS pattern is an abs mode.

D, this indication information are used in reference to first finger and show that this target BS dispatches the terminal from this source base station on this protected subframe; Promptly this indication information is used for the notification target base station, and all need carry out on protected subframe during from the terminal of source base station in scheduling.When this indication information was contained in handoff request message, this indication information is used for the notification target base station dispatched the terminal from this source base station on this protected subframe.

E, this indication information are used in reference to and are shown in the terminal of dispatching on the specific sub-frame from this source base station; Promptly this indication information is used for the notification target base station; All all need be dispatched on specific sub-frame during from the terminal of source base station in scheduling; When this indication information was contained in handoff request message, this indication information is used for the notification target base station dispatched the terminal from this source base station on specific sub-frame.Wherein, this specific sub-frame can be the subclass of protected subframe, can make the pairing protected subframe of subclass etc. of ABS subframe of subclass or source base station of the protected subframe of target BS particularly.This specific sub-frame can also be some specific or preset subframe;

It is high interference terminal or low interfered with terminal that F, this indication information are used to indicate the terminal from this source base station.Especially, when indication information is high level cadre during around the terminal, carry out 302.

Whether the concrete ability that G, this indication information are used to indicate UE supports ABS to measure such as UE.Especially, when indication information is terminal support ABS measurement, carry out 302.

Further, this indication information can also be included as the ability of indication from the terminal of this source base station, particularly, comprises the version of indicating UE, such as R8, and R9, R10, R11 etc.

In the present embodiment, indication information can be to a plurality of terminals, also can be to single terminal; When indication information is contained in the base station configuration updating information; This indication information is to a plurality of terminals, and when this indication information was contained in handoff request message, this indication information was to certain terminal; Preferably, this certain terminal is meant the terminal from source base station in the embodiment of the invention.

302: when source base station subordinate's terminal switched to target BS, target BS was dispatched this terminal from source base station according to this indication information on protected subframe.

Particularly, this terminal from source base station of scheduling on protected subframe comprises:

In handoff procedure, target BS sends downstream message and gives this from the terminal in the source base station on protected subframe;

Wherein, Downstream message comprises PDCCH (Physical Downlink Control Channel; Physical Downlink Control Channel) information, RRC (RRC-radio resource control, Radio Resource control) message, MAC message (Media Access Control; Medium access control message) etc., present embodiment is not done qualification to this.

Particularly, in the process of base station access by terminal, when receiving the uplink random access message of sending at the terminal, target BS sends descending random accessing message and gives the terminal on protected subframe.

Further, before access procedure, can also comprise: target BS distributes dedicated preamble or special-purpose random access resource to give the terminal; In order to improve the success rate of base station access by terminal; It is dedicated preamble or the dedicated random access resource that the terminal provides that target BS sends target BS to source base station, and this distribution can also directly be distributed to the terminal through downstream message with the preamble or the dedicated random access resource of special use for target BS.

In the access procedure after this allocation step, when receiving the uplink random access message of sending at the terminal, target BS sends descending random accessing message and gives the terminal on protected subframe, specifically comprise:

When target BS received this dedicated preamble or the message of on this special-purpose random access resource, sending, target BS sent downstream message to being switched to the target BS terminal from source base station on protected subframe.

Need to prove, in the present embodiment, when indication information is one of A～G; Target BS is dispatched this terminal from source base station, in fact according to this indication information on protected subframe; Indication information can also be that normal measurement or switch decision pattern are based on normal measurement for the measurement pattern at terminal; Those skilled in the art can know that target BS is gone up scheduling to the terminal in normal sub-frames (normal subframe, just conventional subframe).

The method that present embodiment provides; Be injured the base station through receiving indication information; And according to the particular content of indication information on protected subframe, dispatch from the infringement base station the terminal; The communication influence that has caused owing to the strong interference that receives the infringement base station when having avoided the terminal in heterogeneous network, to switch; Guarantee the terminal success rate for switching, also reached when being reduced in the terminal and inserting or the purpose of base station to the descending interference of this base station encroached at the terminal when this serving BS is served, improved communication performance.

The flow chart of a kind of method that the terminal that switches is dispatched that Fig. 4 provides for the embodiment of the invention.The mutual both sides of the method that dispatch at the terminal to switching of present embodiment are respectively target BS and source base station; Wherein target BS is the base station that is injured; Source base station is the corresponding infringement base station of target BS; Method as shown in Figure 4, that dispatch at the terminal to switching of present embodiment specifically can may further comprise the steps:

401: target BS receives the handoff request message from source base station;

In the present embodiment, this handoff request message contains indication information, and this handoff request message is used for asking the terminal with source base station to switch to target BS; Also promptly this indication information to be source base station be included in the said handoff request message when target base station requests switches to target BS with source base station subordinate's terminal sends; And receive by target BS; When target BS receives this handoff request message, also promptly received indication information from source base station.

Particularly, Indication message can among above-mentioned A～G any one:

To A, when this handoff request information comprised indication information, this indication information was used for the notification target base station, and the terminal that this source base station request is switched is for receiving interfered with terminal.

To B, when this handoff request information comprised indication information, this indication information was used for the notification target base station, and the switch decision at the terminal that this source base station request is switched is based on the ABS measurement result.

To C, when this handoff request information comprised indication information, this indication information was that ABS measures for the measurement pattern from the terminal of this source base station; Particularly, this indication information is that ABS measures for the pattern of under this source base station service, carrying out the neighbor cell measurement from the terminal of this source base station; Or this indication information carries out the neighbor cell measurement for this terminal from this source base station after switching to this target BS pattern is an abs mode.

To D, when this handoff request information comprised indication information, this indication information is used for the notification target base station dispatched the terminal from this source base station on this protected subframe.

To E, when this handoff request information comprised indication information, this indication information is used for the notification target base station dispatched the terminal from this source base station on specific sub-frame.

It is high interference terminal or low interfered with terminal that F, this indication information are used to indicate the terminal from this source base station.Especially, when indication information is high level cadre during around the terminal, carry out 402.

Whether the concrete ability that G, this indication information are used to indicate UE supports ABS to measure such as UE.Especially, when indication information is terminal support ABS measurement, carry out 402.

In the present embodiment, source base station is the transmit leg of indication information, and source base station can carry out corresponding allocating and measuring pattern or switch decision to the terminal of source base station service according to this indication information.Particularly, source base station according to the content of indication information to the terminal of source base station service sending measuring pattern or carry out the selection of switch decision pattern.Need to prove; This configuration step does not have specific sequencing with the step of sending indication information; Source base station can be configured at the terminal to the source base station service before sending indication information; Can after sending indication information, be configured at the terminal to the source base station service, the embodiment of the invention is not done concrete qualification yet.

Particularly; For the situation for certain terminal; Source base station carries out corresponding measurement configuration to the terminal when sending this indication information, perhaps the terminal is carried out corresponding measurement configuration (configuration of ABS measurement pattern) and carried out switch decision based on the ABS measurement result at terminal subsequently.

For a plurality of terminals of source base station (all terminals of certain sub-district that for example this source base station is corresponding): 1) source base station can carry out corresponding measurement configuration to the terminal before sending this indication information, also can after sending this indication information, carry out corresponding measurement configuration to the terminal.2) source base station carries out the selection of switch decision pattern when judgement is measured at the terminal after sending this indication information.

402: target BS is replied switch acknowledgment message to source base station;

When target BS agree to receive this from the terminal of source base station; Target BS is replied switch acknowledgment message to source base station; Allocation step described in the step 302 can be accomplished through this switch acknowledgment message, also can accomplish alternately through other modes between target BS and source base station or the terminal, therefore; Preferably, the switch acknowledgment message in this step 402 comprises: target BS is dedicated preamble or the dedicated random access resource that the terminal provides.

403: switch at this terminal of source base station indication;

Those skilled in the art can know that when target BS feedback reception condition, source base station need be notified the terminal, and the terminal can be switched according to reception condition.

404: preamble is sent to target BS in the terminal;

Further, be dedicated preamble or the dedicated random access resource that the terminal provides when the terminal has received target BS after step 402, the terminal can be sent specific preamble or on dedicated random access resource, sent preamble in access procedure.

405: the preamble that the target BS receiving terminal sends, and on protected subframe, send to insert at random and reply message to the terminal;

Further; When target BS is the dedicated preamble that provides of terminal or dedicated random access resource; Target BS is when receiving the preamble that sends at the terminal; Can be through this preamble be judged; Judge whether this preamble is dedicated preamble or judge whether this preamble is that send at the terminal that on dedicated random access resource when preamble is that dedicated preamble or this preamble are terminals when on dedicated random access resource, sending, target BS sends to insert at random and replys message and give the terminal on protected subframe.

406: scheduled transmission message is sent to target BS in the terminal after receiving the descending random accessing message of sending the base station;

407: target BS receives scheduled transmission message, on protected subframe, sends feedback contention-based solution message (contention solution) to the terminal;

This step 404-407 is that switching is carried out at the terminal, is linked into the process of target BS.In this process, comprised descending random accessing message is sent in switching reciprocal process and base station between the base station on protected subframe process.Through this process, switch to target BS from the terminal of source base station, and accomplished access procedure.

The method that present embodiment provides; Be contained in the indication information in the handoff request message through reception; And according to the particular content of indication information on protected subframe, dispatch from the infringement base station the terminal; The communication influence that has caused owing to the strong interference that receives the infringement base station when having avoided the terminal in heterogeneous network, to switch; Guarantee the terminal success rate for switching, also reached when being reduced in the terminal and inserting or the purpose of base station to the descending interference of this base station encroached at the terminal when this serving BS is served, improved communication performance.

The present invention also provides a kind of dispatching method; This dispatching method and Fig. 3,4 corresponding embodiment principles are similar, and its difference is the transmit leg and the recipient of indication information, in this embodiment; At transmit leg; Send indication information by target BS to source base station, and by target BS according to this indication information, scheduling is from the terminal of this source base station on protected subframe.Wherein, concrete and Fig. 3 of indication information, the embodiment that Fig. 4 is corresponding are identical, repeat no more at this.And the recipient, receive indication information by source base station, and this source base station carries out corresponding allocating and measuring pattern or switch decision according to this indication information to the terminal in the source base station.

The flow chart of a kind of method that the terminal that switches is dispatched that Fig. 5 provides for the embodiment of the invention.The mutual both sides of the method that dispatch at the terminal to switching of present embodiment are target BS and terminal; Wherein target BS is the base station that is injured; The terminal is for encroach on the terminal of base station accordingly from target BS; Method as shown in Figure 5, that dispatch at the terminal to switching of present embodiment specifically can may further comprise the steps:

501: target BS confirms that source base station is the infringement base station of this target BS;

Wherein, target BS obtains the infringement base station of this target BS or encroaches on the sub-district, specifically comprises:

Said target BS knows that according to the measurement report that receives said source base station is the infringement base station of this target BS or encroaches on the sub-district; Or,

Said target BS confirms that according to the sub-district sign ECGI or PCI (Physical CellIdentifier, the Physical Cell Identifier) information of neighbours base station source base station is the infringement base station of this target BS or encroaches on the sub-district;

Said target BS confirms that according to the OAM configuration of said target BS source base station is the infringement base station of this target BS or encroaches on the sub-district.

OAM can also be called as O&M (operation and management, operation, management), perhaps ENS, perhaps NMS.

Particularly; Target BS confirms that source base station is the infringement base station of this target BS; Specifically comprise: the terminal that can be target BS configuration oneself uses conventional subframe measurement pattern to measure neighbor cell (like the sub-district 1 of source base station), also lets the terminal use ABS subframe measurement pattern to measure neighbor cell (like the sub-district 1 of source base station) in addition.Through comparing the measurement result under two kinds of measurement patterns; The result that some conventional subframes are measured is very poor or be lower than certain thresholding; Difference dry straight or that be higher than certain thresholding or two measurement results surpasses certain thresholding and the ABS subframe is measured; Target BS judges that the sub-district (sub-district 1) of this source base station is an infringement sub-district thus, and this source base station is an infringement base station.

Particularly; The infringement base station that this target BS obtains this target BS according to the PCI information or the cell ID of the neighbours base station of this target BS: for example; Target BS obtains the infringement cell ID (like ECGI) of target BS or obtains the corresponding Base Station Identification (eNB ID) in target BS infringement sub-district or obtain the PCI that send in this sub-district corresponding base station, target BS infringement sub-district, thereby discerns the infringement base station of oneself or encroach on the sub-district through above-mentioned beacon information.How target BS obtains said sign, can be to dispose through OAM.

Particularly; This target BS infringement base station that this target BS is obtained in configuration according to the OAM of this target BS: the infringement sub-district that obtains target BS through the OAM configuration information indicates (like ECGI) or obtains corresponding base station, target BS infringement sub-district and indicates (eNB ID), perhaps the PCI (Physical Cell Identifier) that sends of corresponding base station, target BS infringement sub-district etc.

502: this target BS is dispatched the terminal from the infringement base station of this target BS on protected subframe.

Wherein, this target BS is dispatched the terminal from this source base station on protected subframe, and wherein source base station is the infringement base station of target BS, comprising:

This target BS sends downstream message and gives this terminal on protected subframe.

Wherein, this target BS sends downstream message and gives this terminal on protected subframe, comprising:

When receiving the uplink random access message of sending at this terminal, this target BS sends descending random accessing message and gives this terminal on this protected subframe.

Wherein, this target BS is dispatched the terminal from the infringement base station of this target BS on protected subframe, also comprise:

Distribute dedicated preamble or special-purpose random access resource to give this terminal.

Wherein, this distributes dedicated preamble or dedicated random access resource to give this terminal, comprising:

This target BS sends dedicated preamble and/or the dedicated random access resource that this target BS provides for this terminal to the infringement base station of this target BS.

Wherein, on protected subframe, send descending random accessing message and give this terminal, comprising:

When target BS received this dedicated preamble or the message of on this special-purpose random access resource, sending, target BS sent downstream message and switches to the target BS terminal to the infringement base station from this target BS on protected subframe.

Need to prove; The embodiment principle of this embodiment and Fig. 3, Fig. 4 is similar; Its difference is; Target BS in the embodiment of the invention is through obtaining the infringement base station of this target BS, and to dispatching on protected subframe from the terminal of infringement base station, and the embodiment of Fig. 3, Fig. 4 is that content according to indication information is to dispatching on protected subframe from the terminal of infringement base station; Processes such as switching among this embodiment and access all with the embodiment of Fig. 3 and Fig. 4 in like manner, repeat no more at this.

The method that present embodiment provides; Be injured the base station through knowing contiguous infringement base station; And scheduling is from the terminal of this base station that is injured on protected subframe, and the communication influence that has caused owing to the strong interference that receives the infringement base station when having avoided the terminal in heterogeneous network, to switch has guaranteed the terminal success rate for switching; Also reached when being reduced in the terminal and inserting or the purpose of base station to the descending interference of this base station encroached at the terminal when this serving BS is served, improved communication performance.

The flow chart of a kind of method that the terminal that switches is dispatched that Fig. 6 provides for the embodiment of the invention.The mutual both sides of the method that dispatch at the terminal to switching of present embodiment are respectively target BS and source base station; Wherein target BS is the base station that is injured; Source base station is the corresponding infringement base station of target BS; Method as shown in Figure 6, that dispatch at the terminal to switching of present embodiment specifically can may further comprise the steps:

601: source base station sends indication information to target BS; Or said source base station receives indication information;

602: said source base station carries out handover optimization according to said indication information;

Wherein, the method for this definite infringement base station is identical with the implementation method among the corresponding embodiment of Fig. 5, repeats no more once more.

Preferably, the A～G in this indication information and the step 301 is similar, is specially following:

This indication information be used to indicate this from the terminal of this source base station for receiving interfered with terminal; Or,

This indication information is used to indicate this switch decision that carries out from the terminal of this source base station is based on the ABS measurement result; Or,

It is that ABS measures that this indication information is used to indicate this measurement pattern from the terminal of this source base station; Or,

This indication information is used to indicate this target BS on this protected subframe, to dispatch this terminal from this source base station; Or,

This indication information is used in reference to and is shown in this terminal from this source base station of scheduling on the specific sub-frame; Or,

Preferably, it is that ABS measures that this indication information is used to indicate this measurement pattern from the terminal of this source base station, comprising:

The pattern that this indication information is used to indicate this terminal from this source base station under this source base station service, to carry out the neighbor cell measurement is that ABS measures; Or

The pattern that this indication information is used to indicate this terminal from this source base station after switching to this target BS, to carry out the neighbor cell measurement is an abs mode.

Particularly, said source base station carries out handover optimization according to said indication information and comprises:

Said source base station is configured measurement pattern or switch decision according to said indication information to said source base station subordinate terminal, to confirm to switch to the terminal of said target BS.

Need to prove; This configuration step does not have specific sequencing with the step of sending indication information; Source base station can be configured at the terminal to the source base station service before sending indication information; Can after sending indication information, be configured at the terminal to the source base station service, the embodiment of the invention is not done concrete qualification yet.

For a plurality of terminals of source base station (for example all terminals of this certain sub-district, base station): 1) corresponding measurement configuration can be carried out to the terminal in the base station before sending this indication information, also can after sending this indication information, carry out corresponding measurement configuration to the terminal.2) selection of switch decision pattern is carried out in the base station when judgement is measured at the terminal after sending this indication information.

The method that present embodiment provides; Source base station is according to the terminal of the particular content configuration infringement base station services of indication information or to carrying out switch decision according to this terminal of indicating information contents; Make be injured the base station can on protected subframe, dispatch from encroach on the base station the terminal; The communication influence that has caused owing to the strong interference that receives the infringement base station when having avoided the terminal in heterogeneous network, to switch; Guarantee the terminal success rate for switching, also reached when being reduced in the terminal and inserting or the purpose of base station to the descending interference of this base station encroached at the terminal when this serving BS is served, improved communication performance.

The flow chart of a kind of method that the terminal is switched that Fig. 7 provides for the embodiment of the invention.The executive agent of the changing method of present embodiment is a target BS, and this target BS is the base station that is injured, and is as shown in Figure 6, and the method that the terminal is switched of present embodiment specifically can may further comprise the steps:

701: target BS carries out handover optimization according to indication information.

Wherein, this handover optimization comprises:

On protected subframe the scheduling this terminal from this source base station, particularly, when the source base station subordinate terminal when target BS switches, target BS is dispatched this terminal on protected subframe;

Or,

On protected subframe, send downstream message and give this terminal from this source base station, particularly, when the source base station subordinate terminal when target BS switches, target BS sends downstream message to this terminal on protected subframe;

Or,

Distribute dedicated preamble or dedicated random access resource to give this terminal from this source base station; Particularly; In the reciprocal process of target BS and source base station; Target BS sends switching answer message or other message is given source base station, is dedicated preamble or the dedicated random access resource that source base station provides this target BS to provide for the source base station subordinate terminal, and source base station is when receiving this switching answer message or other message; This dedicated preamble or dedicated random access resource are handed down to the source base station subordinate terminal, make the terminal of source base station service when inserting target BS, send this dedicated preamble or on dedicated random access resource, send preamble;

Or,

Used transmitting power when improving this from the terminal to transmit uplink random accessing message of this source base station, particularly, target BS is through sending message to source base station or terminal, used transmitting power when improving the emission uplink random and insert message with the notice terminal; Or,

Raising is used transmitting power during from the transmitting downstream random accessing message at the terminal of this source base station to this; Particularly; When target BS receives the uplink random that sends from the terminal of source base station when inserting message, used transmitting power when target BS improves this from the transmitting downstream random accessing message at the terminal of this source base station.

Further, distribute dedicated preamble or dedicated random access resource to after the said terminal from said source base station at target BS, target BS sends descending random accessing message and gives said terminal from said source base station on protected subframe.

Further; This handover optimization also comprises: source base station carries out corresponding allocating and measuring pattern or switch decision to the terminal in the source base station; This layoutprocedure can be carried out before source base station sends indication information; Can after source base station sends indication information, carry out, the embodiment of the invention is not done concrete qualification yet.

In embodiments of the present invention, before this step 701, also comprise:

Target BS receives indication information;

Or,

Said target BS sends indication information to said source base station.

In the present embodiment, this indication information can be that source base station sends to target BS when mutual and received by target BS between the base station, and preferably, this indication information is contained in the base station configuration updating information.

In another embodiment of the present invention, this indication information can also be contained in the handoff request information, and this handoff request message is used for asking the terminal with source base station to switch to target BS; Also promptly this indication information can also be that terminal in source base station sends to target BS by source base station when in target BS, switching and received by target BS.

Wherein, target BS receives indication information, specifically comprises:

Target BS receives from the indication information of OAM or target BS and receives the indication information from MME.

Need to prove that the A～G in this indication information and the step 301 is similar, said indication information is used to indicate terminal from source base station for receiving interfered with terminal; Or,

Said indication information is used in reference to and is shown in the said terminal from said source base station of scheduling on the specific sub-frame; Or,

Wherein, to be used to indicate the measurement pattern at said terminal from said source base station be that the ABS measurement comprises to said indication information:

The pattern that said indication information is used to indicate said terminal from said source base station under said source base station service, to carry out the neighbor cell measurement is that ABS measures; Or,

The pattern that said indication information is used to indicate said terminal from said source base station to switch to carry out behind the said target BS neighbor cell to measure is that ABS measures.

Need to prove, the process that step 701 handover optimization process is switched in the base station that is injured for the terminal of infringement in the base station, it is similar with the step 404-407 in the foregoing description that the process of the base station that is injured is inserted at this terminal, repeats no more at this.

The method that present embodiment provides; Target BS carries out handover optimization according to the particular content of indication information; The communication influence that has caused owing to the strong interference that receives the infringement base station when having avoided the terminal in heterogeneous network, to switch; Guarantee the terminal success rate for switching, also reached when being reduced in the terminal and inserting or the purpose of base station to the descending interference of this base station encroached at the terminal when this serving BS is served, improved communication performance.

In the invention provides another embodiment, this specifically comprises the method that switch at the terminal:

Said target BS confirms that source base station is the infringement base station of this target BS, comprising:

Said target BS is known the infringement base station of said source base station for this target BS according to the measurement report that receives; Or,

Said target BS confirms that according to the sub-district sign ECGI or the PCI information of neighbours base station source base station is the infringement base station of this target BS; Or

Said target BS confirms that according to the OAM configuration of said target BS source base station is the infringement base station of this target BS.

The said handover optimization that carries out comprises:

The said terminal of scheduling on protected subframe from said source base station; Or,

On protected subframe, send downstream message and give said terminal from said source base station; Or,

Distribute dedicated preamble or dedicated random access resource to give said terminal from said source base station; Or,

Used transmitting power when improving said terminal to transmit uplink random accessing message from said source base station; Or,

Used transmitting power when improving said terminal transmitting downstream random accessing message from said source base station.

Need to prove; Target BS in the embodiment of the invention is through obtaining the infringement base station of this target BS; And on protected subframe, dispatching from the terminal of infringement base station; And Fig. 3,4 embodiment be according to the content of indication information on protected subframe, dispatching from the terminal of infringement base station, processes such as switching in the present embodiment and access all with the embodiment of Fig. 3 and Fig. 4 in like manner, repeat no more at this.And the process of the definite infringement base station among this embodiment is identical with definite Principle of Process among the pairing embodiment of Fig. 5, repeats no more at this.

The method that present embodiment provides; Through confirming the infringement base station; And carry out handover optimization according to the infringement base station, owing to receive the communication that caused of strong interference of infringement base station and influence, guaranteed the terminal success rate for switching when having avoided the terminal in heterogeneous network, to switch; Also reached when being reduced in the terminal and inserting or the purpose of base station to the descending interference of this base station encroached at the terminal when this serving BS is served, improved communication performance.

The present invention also provides a kind of method that the terminal is switched, and comprising:

Wherein, said source base station carries out handover optimization according to the infringement base station of confirming, comprising:

Said source base station is configured measurement pattern or switch decision according to the infringement base station of confirming to said source base station subordinate terminal, to confirm to switch to the terminal of said target BS.

Need to prove that this changing method is the respective side of a last embodiment, an implementation that it is concrete and a last embodiment are similar, repeat no more at this.

The flow chart of a kind of method that the terminal is switched that Fig. 8 provides for the embodiment of the invention.The executive agent of the method that the terminal is switched of present embodiment is a source base station, and this source base station is an infringement base station, and is as shown in Figure 8, and the method that the terminal is switched of present embodiment specifically can may further comprise the steps:

801: source base station sends indication information or receives said indication information or said source base station is the infringement base station of said target BS to target BS, so that said target BS carries out handover optimization.

Said indication information is used to indicate terminal from said source base station for receiving interfered with terminal; Or,

Said indication information is used in reference to and is shown in the said terminal from said source base station of scheduling on the specific sub-frame.

Said method also comprises:

Said source base station is configured measurement pattern or switch decision according to said indication information to said source base station subordinate terminal.

The method that present embodiment provides; The infringement base station is carried out handover optimization according to the particular content of indication information to the terminal of infringement base station; The communication influence that has caused owing to the strong interference that receives the infringement base station when having avoided the terminal in heterogeneous network, to switch; Guarantee the terminal success rate for switching, also reached when being reduced in the terminal and inserting or the purpose of base station to the descending interference of this base station encroached at the terminal when this serving BS is served, improved communication performance.

The structural representation of a kind of base station that Fig. 9 provides for the embodiment of the invention.As shown in Figure 9, the base station of present embodiment specifically comprises:

Scheduler module 901 is used on protected subframe, dispatching the terminal from source base station;

Said base station also further comprises:

Receiver module 902 is used to receive indication information, and triggers said scheduler module;

Or,

Sending module 903 is used for sending indication information to said source base station, and triggers said scheduler module;

Or,

Infringement base station determination module 904 is used for confirming the infringement base station of source base station for this base station, and triggers said scheduler module.

The structural representation of a kind of base station that Figure 10 provides for the embodiment of the invention.Shown in figure 10, the base station of present embodiment specifically comprises:

Or,

Wherein, said indication information is used to indicate said terminal from said source base station for receiving interfered with terminal; Or,

Said indication information is used to indicate said base station on said protected subframe, to dispatch said terminal from said source base station; Or,

Said receiver module 902 specifically is used to receive the indication information from source base station, OAM or MME.

Said infringement base station determination module 904 comprises:

First confirms unit 9041, is used for knowing the infringement base station of said source base station for this base station according to the measurement report that receives; Or,

Second confirms unit 9042, is used for confirming that according to the sub-district sign ECGI or the PCI information of neighbours base station source base station is the infringement base station of this base station; Or

The 3rd confirms unit 9043, is used for confirming the infringement base station of source base station for this base station according to the OAM configuration of said base station.

Said scheduler module 901 comprises:

Downstream message transmitting element 9011 is used on protected subframe, sending downstream message and gives said terminal from said source base station.

Allocation units 9012 are used to distribute dedicated preamble or dedicated random access resource to give said terminal from said source base station.

Resource transmitting element 9013 is used for through said source base station said dedicated preamble and/or dedicated random access resource being transmitted to said terminal from said source base station.

Descending random accessing message transmitting element 9014; Be used for when receiving the said dedicated preamble or the message of on said dedicated random access resource, sending, on protected subframe, send descending random accessing message and give said terminal from said source base station.

The structural representation of a kind of base station that Figure 11 provides for the embodiment of the invention.Shown in figure 11, the base station of present embodiment specifically comprises:

Terminal configuration module 1001 is used for according to indication information, carries out handover optimization;

Sending module 1002 is used for sending indication information to target BS, and triggers said terminal configuration module;

Or,

Receiver module 1003 is used to receive indication information, and triggers said terminal configuration module.

Wherein, said indication information is used to indicate said terminal from said base station for receiving interfered with terminal; Or,

Said indication information is used to indicate the said switch decision that carries out from the terminal of said base station is based on the ABS measurement result; Or,

It is that ABS measures that said indication information is used to indicate the measurement pattern at said terminal from said base station; Or,

Said indication information is used to indicate said target BS on said protected subframe, to dispatch said terminal from said base station; Or,

Said indication information is used in reference to and is shown in the said terminal from said base station of scheduling on the specific sub-frame; Or

The structural representation of a kind of base station that Figure 12 provides for the embodiment of the invention.Shown in figure 12, the base station of present embodiment specifically comprises:

Handover optimization module 1101 is used for according to indication information, carries out handover optimization;

Wherein, said indication information is used to indicate terminal from source base station for receiving interfered with terminal; Or,

It is that the ABS measurement comprises that said indication information is used to indicate the measurement pattern at said terminal from said source base station:

The pattern that said indication information is used to indicate said terminal from said source base station to switch to carry out behind the said base station neighbor cell to measure is that ABS measures.

Said handover optimization module 1101 comprises:

Scheduling unit 11011 is used for the said terminal from said source base station of scheduling on protected subframe; Or,

Downstream message transmitting element 11012 is used on protected subframe, sending downstream message and gives said terminal from said source base station; Or,

Allocation units 11013 are used to distribute dedicated preamble or dedicated random access resource to give said terminal from said source base station; Or,

First power improves unit 11014, used transmitting power when being used to improve said terminal to transmit uplink random accessing message from said source base station; Or,

Second power improves unit 11015, used transmitting power when being used to improve said terminal transmitting downstream random accessing message from said source base station.

If said handover optimization module 1101 comprises allocation units 11013, correspondingly, said handover optimization module 1101 also comprises:

Descending random message transmitting element 11016; Be used for when receiving said dedicated preamble or receive the uplink random access message of on said dedicated random access resource, sending, on protected subframe, sending descending random accessing message and giving said terminal from said source base station.

Said base station also comprises:

Receiver module 1102 is used to receive indication information;

Or,

Sending module 1103 is used for sending indication information to said source base station.

The structural representation of a kind of base station that Figure 13 provides for the embodiment of the invention.Shown in figure 13, the base station of present embodiment specifically comprises:

Infringement base station determination module 1201 is used for confirming the infringement base station of source base station for this base station,

Handover optimization module 1202 is used for carrying out handover optimization according to the infringement base station of confirming.

The structural representation of a kind of base station that Figure 14 provides for the embodiment of the invention.Shown in figure 14, the base station of present embodiment specifically comprises:

Said infringement base station determination module 1201 comprises:

First confirms unit 12011, is used for knowing the infringement base station of said source base station for this base station according to the measurement report that receives; Or,

Second confirms unit 12012, is used for confirming that according to the sub-district sign ECGI or the PCI information of neighbours base station source base station is the infringement base station of this base station; Or

The 3rd confirms unit 12013, is used for confirming the infringement base station of source base station for this base station according to the OAM configuration of said base station.

Said handover optimization module 1202 comprises:

Scheduling unit 12021 is used for the said terminal from said source base station of scheduling on protected subframe; Or,

Downstream message transmitting element 12022 is used on protected subframe, sending downstream message and gives said terminal from said source base station; Or,

Allocation units 12023 are used to distribute dedicated preamble or dedicated random access resource to give said terminal from said source base station; Or,

First power improves unit 12024, used transmitting power when being used to improve said terminal to transmit uplink random accessing message from said source base station; Or,

Second power improves unit 12025, used transmitting power when being used to improve said terminal transmitting downstream random accessing message from said source base station.

If said handover optimization module 1202 comprises allocation units 12023, correspondingly, said handover optimization module 1202 also comprises:

Descending random message transmitting element 12026; Be used for when receiving said dedicated preamble or receive the uplink random access message of on said dedicated random access resource, sending, on protected subframe, sending descending random accessing message and giving said terminal from said source base station.

The structural representation of a kind of base station that Figure 15 provides for the embodiment of the invention.Shown in figure 15, the base station of present embodiment specifically comprises:

Determination module 1301 is used for confirming that said base station is the infringement base station of target BS;

Handover optimization module 1302 is used for carrying out handover optimization according to the infringement base station of confirming.

Said handover optimization module 1302 is used for according to said definite infringement base station said base station subordinate terminal being configured measurement pattern or switch decision, to confirm to switch to the terminal of said target BS.

Base station that present embodiment provides and method embodiment belong to same design, and its concrete implementation procedure sees method embodiment for details, repeats no more here.

The all or part of of the technique scheme that the embodiment of the invention provides can be accomplished through the relevant hardware of program command; Said program can be stored in the storage medium that can read, and this storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.

The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. the method that the terminal that switches is dispatched is characterized in that, comprising:

2. method according to claim 1 is characterized in that, also comprises:

Target BS receives indication information;

The terminal that said target BS is dispatched from source base station on protected subframe comprises:

Target BS is dispatched the terminal from source base station according to the indication of said indication information on protected subframe.

3. method according to claim 1 is characterized in that, before the terminal of scheduling from source base station on the protected subframe, said method also comprises at target BS:

Said target BS sends indication information to said source base station, so that said source base station confirms to switch to the terminal of said target BS based on the indication of said indication information.

4. method according to claim 1 is characterized in that, before the terminal of scheduling from source base station on the protected subframe, said method also comprises at target BS:

Said target BS confirms that source base station is the infringement base station of this target BS.

5. according to claim 2 or 3 described methods, it is characterized in that said indication information is used to indicate said terminal from said source base station for receiving interfered with terminal; Or,

6. method according to claim 5 is characterized in that, it is that ABS measures that said indication information is used to indicate the measurement pattern at said terminal from said source base station, comprising:

The pattern that said indication information is used to indicate said terminal from said source base station after switching to said target BS, to carry out the neighbor cell measurement is an abs mode.

7. method according to claim 2 is characterized in that, said target BS receives indication information and comprises: said target BS receives the indication information from source base station, OAM or MME.

8. method according to claim 2 is characterized in that, said indication information be included in the handoff request message or base station configuration updating information in.

9. method according to claim 4 is characterized in that, said target BS confirms that source base station is the infringement base station of this target BS, comprising:

10. according to each described method in the claim 1 to 4, it is characterized in that scheduling comprises from the terminal of said source base station on protected subframe:

On protected subframe, send downstream message and give said terminal from said source base station.

11. method according to claim 10 is characterized in that, on protected subframe, sends downstream message and gives said terminal from said source base station, comprising:

After receiving said uplink random access message of sending from the terminal of said source base station, said target BS sends descending random accessing message and gives said terminal from said source base station on said protected subframe.

12., it is characterized in that scheduling comprises from the terminal of said source base station on protected subframe according to each described method in the claim 1 to 4:

Distribute dedicated preamble or dedicated random access resource to give said terminal from said source base station.

13. method according to claim 12 is characterized in that, scheduling also comprises from the terminal of said source base station on protected subframe:

Said target BS is transmitted to said terminal from said source base station through said source base station with said dedicated preamble and/or dedicated random access resource.

14., it is characterized in that scheduling also comprises from the terminal of said source base station on protected subframe according to each each described method in the claim 1 to 4:

When target BS received the said dedicated preamble or the message of on said dedicated random access resource, sending, target BS sent descending random accessing message to said terminal from said source base station on protected subframe.

15. one kind is carried out dispatching method to the terminal that switches, and it is characterized in that, comprising:

16. method according to claim 15 is characterized in that, said source base station carries out handover optimization according to said indication information and comprises:

17. method according to claim 16 is characterized in that, it is that ABS measures that said indication information is used to indicate the measurement pattern at said terminal from said source base station, comprising:

The pattern that said indication information is used to indicate said terminal from said source base station under said source base station service, to carry out the neighbor cell measurement is that ABS measures; Or

18. the method that the terminal is switched is characterized in that, comprising:

19. method according to claim 18 is characterized in that, it is that the ABS measurement comprises that said indication information is used to indicate the measurement pattern at said terminal from said source base station:

20. method according to claim 18 is characterized in that, the said handover optimization that carries out comprises:

21. method according to claim 20 is characterized in that, the said handover optimization that carries out also comprises:

Distribute dedicated preamble or dedicated random access resource to after the said terminal from said source base station at target BS, target BS sends descending random accessing message and gives said terminal from said source base station on protected subframe.

22., it is characterized in that target BS carries out also comprising before the handover optimization according to indication information according to each described method of claim 18-21:

Target BS receives indication information;

Or,

Said target BS sends indication information to said source base station.

23. the method that the terminal is switched is characterized in that, comprising:

24. method according to claim 23 is characterized in that, said target BS confirms that source base station is the infringement base station of this target BS, comprising:

25. method according to claim 23 is characterized in that, the said handover optimization that carries out comprises:

26. the method that the terminal is switched is characterized in that, comprising:

27. method as claimed in claim 26 is characterized in that, said source base station carries out handover optimization according to the infringement base station of confirming, comprising:

28. a base station is characterized in that, comprising:

Said base station also further comprises:

Or,

29. base station according to claim 28 is characterized in that, said indication information is used to indicate said terminal from said source base station for receiving interfered with terminal; Or,

30. base station according to claim 28 is characterized in that, said receiver module specifically is used to receive the indication information from source base station, OAM or MME.

31. base station according to claim 28 is characterized in that, said infringement base station determination module comprises:

First confirms the unit, is used for knowing the infringement base station of said source base station for this base station according to the measurement report that receives; Or,

Second confirms the unit, is used for confirming that according to the sub-district sign ECGI or the PCI information of neighbours base station source base station is the infringement base station of this base station; Or

The 3rd confirms the unit, is used for confirming the infringement base station of source base station for this base station according to the OAM configuration of said base station.

32. base station according to claim 28 is characterized in that, said scheduler module comprises:

The downstream message transmitting element is used on protected subframe, sending downstream message and gives said terminal from said source base station.

33. base station according to claim 28 is characterized in that, said scheduler module also comprises:

Allocation units are used to distribute dedicated preamble or dedicated random access resource to give said terminal from said source base station.

34. base station according to claim 33 is characterized in that, said scheduler module also comprises:

The resource transmitting element is used for through said source base station said dedicated preamble and/or dedicated random access resource being transmitted to said terminal from said source base station.

35. base station according to claim 33 is characterized in that, said scheduler module also comprises:

Descending random accessing message transmitting element is used for when receiving the said dedicated preamble or the message of on said dedicated random access resource, sending, and on protected subframe, sends descending random accessing message and gives said terminal from said source base station.

36. a base station is characterized in that, comprising:

Said base station also comprises:

Or,

37. base station according to claim 36 is characterized in that, said indication information is used to indicate said terminal from said base station for receiving interfered with terminal; Or,

38. a base station is characterized in that, comprising:

39., it is characterized in that it is that the ABS measurement comprises that said indication information is used to indicate the measurement pattern at said terminal from said source base station according to the described base station of claim 38:

40., it is characterized in that said handover optimization module comprises according to the described base station of claim 38:

Scheduling unit is used for the said terminal from said source base station of scheduling on protected subframe; Or,

The downstream message transmitting element is used on protected subframe, sending downstream message and gives said terminal from said source base station; Or,

Allocation units are used to distribute dedicated preamble or dedicated random access resource to give said terminal from said source base station; Or,

First power improves the unit, used transmitting power when being used to improve said terminal to transmit uplink random accessing message from said source base station; Or,

Second power improves the unit, used transmitting power when being used to improve said terminal transmitting downstream random accessing message from said source base station.

41., it is characterized in that if said handover optimization module comprises allocation units, correspondingly, said handover optimization module also comprises according to the described base station of claim 40:

Descending random message transmitting element; Be used for when receiving said dedicated preamble or receive the uplink random access message of on said dedicated random access resource, sending, on protected subframe, sending descending random accessing message and giving said terminal from said source base station.

42., it is characterized in that said base station also comprises according to each described base station of claim 38-41:

Receiver module is used to receive indication information;

Or,

Sending module is used for sending indication information to said source base station.

43. a base station is characterized in that, comprising:

44., it is characterized in that said infringement base station determination module comprises according to the described base station of claim 43:

45., it is characterized in that said handover optimization module comprises according to the described base station of claim 43:

46., it is characterized in that if said handover optimization module comprises allocation units, correspondingly, said handover optimization module also comprises according to the described base station of claim 45:

47. a base station is characterized in that, comprising:

48. base station as claimed in claim 47; It is characterized in that; Said handover optimization module is used for according to said definite infringement base station said base station subordinate terminal being configured measurement pattern or switch decision, to confirm to switch to the terminal of said target BS.