CN105592509A - Cell switching method and apparatus, and device to device (D2D) communication method and apparatus - Google Patents
Cell switching method and apparatus, and device to device (D2D) communication method and apparatus Download PDFInfo
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- CN105592509A CN105592509A CN201410635613.2A CN201410635613A CN105592509A CN 105592509 A CN105592509 A CN 105592509A CN 201410635613 A CN201410635613 A CN 201410635613A CN 105592509 A CN105592509 A CN 105592509A
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Abstract
The invention discloses a cell switching method and apparatus, and a device to device (D2D) communication method and apparatus, for according to scenes where user equipment currently carrying out D2D communication is disposed, flexibly selecting a user equipment cell switching mode, maintaining the continuity of the D2D communication and improving the cell switching efficiency and the D2D communication quality. The cell switching method comprises the following steps: a source base station of user equipment currently carrying out D2D communication determines that the user equipment needs to perform cell switching; and the source base station sends a switching request command to an object base station of the user equipment, wherein the switching request command comprises indication information for indicating the object base station to distribute D2D communication resources to the user equipment.
Description
Technical field
The present invention relates to communication technical field, relate in particular to D2D between the switching of a kind of community, device-to-deviceCommunication means and device.
Background technology
Between device-to-device, the direct communication of (DeviceToDevice, D2D) is third generation collaborative project (3rdGenerationPartnershipProject, 3GPP) standardized focus is also following the 5th generation to move logicalOne large potential technology of letter (5-Generation, 5G). Current D2D standardization has mainly concentrated on netThe device discovery that network covers and there is no point-to-points in public safety (publicsafety) application of the network coveragePoint direct communication.
At present, the subscriber equipment (UserEquipment, UE) that carries out D2D communication carries out community while switchingCell switch process with domestic consumer's equipment carry out community switch time handoff procedure the same, specifically:For the UE and the 2nd UE that carry out D2D communication, if need to carrying out community, one of them cutsChange, for example: a UE need to carry out community switching, the community of carrying out D2D communication due to a UEResource is distributed by cell-of-origin, carries out community cannot continue to use cell-of-origin after switching at a UELocal resource carries out D2D with the 2nd UE communicates by letter, and therefore, must interrupt D2D communication process.
In sum, the subscriber equipment that carries out D2D communication in prior art carries out community while switching,Must interrupt D2D communication process, can not select flexibly switching mode according to the residing scene of subscriber equipment,The sustainability that affects D2D communication, has reduced community switching efficiency and D2D communication quality.
Summary of the invention
The embodiment of the present invention provides D2D communication means and device between the switching of a kind of community, device-to-device,In order to according to the residing scene of subscriber equipment of carrying out D2D communication, select flexibly subscriber equipment communityThe switching mode of switching, keeps the sustainability of D2D communication, improves community switching efficiency and communicates by letter with D2DQuality.
A kind of cell switching method that the embodiment of the present invention provides, comprising: carrying out between device-to-deviceThe source base station of the subscriber equipment of D2D communication determines that this subscriber equipment need to carry out community switching; Described source base stationTarget BS to described subscriber equipment sends handover request order, and wherein, described handover request order comprisesBe the indication information of the described user equipment allocation D2D communication resource in order to indicate described target BS.
In the said method that the embodiment of the present invention provides, carry out the source base of the subscriber equipment of D2D communicationStand and send and comprise that subscriber equipment is carrying out the indication information of D2D communication to the target BS of this subscriber equipmentHandover request order, for example: indication information can comprise subscriber equipment D2D signal post need resource,Thereby making target BS is the resource that user equipment allocation D2D signal post needs according to indication information, and straightConnection knows to this subscriber equipment, realize community while switching without interrupting D2D communication process, with prior artWhen switch the subscriber equipment community of middle D2D communication, must interrupt D2D communication process and compare, keep D2DThe sustainability of communication, improves the quality that community switching efficiency is communicated by letter with D2D.
In a kind of possible embodiment, in the said method that the embodiment of the present invention provides, described indication letterBreath comprises: carry out each other the first user equipment of described D2D communication and the second subscriber equipmentTranslational speed, moving direction and positional information.
In a kind of possible embodiment, in the said method that the embodiment of the present invention provides, described source base stationBefore sending handover request order to the target BS of described subscriber equipment, the method also comprises: described source baseStand according to translational speed, moving direction and the position of described first user equipment and described the second subscriber equipmentInformation, judge the moving direction of described first user equipment and described the second subscriber equipment whether identical or described inThe moving direction of first user equipment and described the second subscriber equipment acutangulates whether be less than first threshold, andAnd whether the absolute value of the difference of the translational speed of described first user equipment and described the second subscriber equipment is less thanSecond Threshold; Described source base station sends handover request order to the target BS of described subscriber equipment, is specially:When described source base station determine the moving direction of described first user equipment and described the second subscriber equipment identical orThe moving direction of described first user equipment and described the second subscriber equipment acutangulates and is less than first threshold, andAnd the absolute value of the difference of the translational speed of described first user equipment and described the second subscriber equipment is less than secondWhen threshold value, described source base station sends handover request order to the target BS of described subscriber equipment.
In the said method that the embodiment of the present invention provides, when the movement of first user equipment and the second subscriber equipmentDirection is consistent, translational speed is when suitable, and source base station sends and comprises subscriber equipment to the target BS of subscriber equipmentCarry out the handover request order of the indication information of D2D communication, making to carry out the use of D2D communicationWhen carrying out community switching, family equipment without interrupting D2D communication process, carries out sustainably D2D communication, rootSelect flexibly switching mode according to the residing scene of subscriber equipment, improve community switching efficiency and communicate by letter with D2DQuality.
A kind of cell switching method that the embodiment of the present invention provides, comprising: carrying out between device-to-deviceThe target BS of the subscriber equipment of D2D communication receives that community that the source base station of this subscriber equipment sends switchesHandover request order, wherein, described handover request order comprises indicating described in described target BS isThe indication information of the user equipment allocation D2D communication resource; Described target BS according to described indication information isDescribed user equipment allocation local resource, and notice is to described subscriber equipment.
In the said method that the embodiment of the present invention provides, carry out the target of the subscriber equipment of D2D communicationThe subscriber equipment that comprises that base station receives the source base station transmission of this subscriber equipment is carrying out the finger of D2D communicationShow the handover request order of information, for example: indication information can comprise what subscriber equipment D2D signal post neededResource, is the resource that user equipment allocation D2D signal post needs thereby make target BS according to indication information,And directly notice to this subscriber equipment, realize community while switching without interrupting D2D communication process, with existingWhen switch the subscriber equipment community of D2D communication in technology, must interrupt D2D communication process and compare, keepThe sustainability of D2D communication, improves the quality that community switching efficiency is communicated by letter with D2D.
In a kind of possible embodiment, in the said method that the embodiment of the present invention provides, described indication letterBreath comprises: carry out each other the first user equipment of described D2D communication and the second subscriber equipmentTranslational speed, moving direction and positional information; Described target BS is described use according to described indication informationFamily devices allocation local resource, is specially: described target BS is according to described first user equipment and describedTranslational speed, moving direction and the positional information of two subscriber equipmenies is described user equipment allocation community moneySource.
In a kind of possible embodiment, in the said method that the embodiment of the present invention provides, described target baseStand and will notify to described subscriber equipment and comprise for the local resource of described user equipment allocation: described target BSSend Radio Resource control (RadioResourceControl, RRC) to described subscriber equipment and connect reprovisionPut order, wherein, described RRC connects reconfigure command and comprises that described target BS is that described user establishesThe local resource that back-up is joined.
D2D communication means between a kind of device-to-device that the embodiment of the present invention provides, comprising: carry outThe local resource that between device-to-device, the first user equipment receiving target base station of D2D communication sends; DescribedFirst user equipment notifies the described local resource receiving to carrying out with this first user equipmentThe second subscriber equipment of D2D communication; Described first user equipment uses described local resource and described the second useFamily equipment carries out D2D communication, and wherein, described local resource is that described target BS sends according to source base stationHandover request order be described first user devices allocation, wherein, described handover request order comprisesBe the indication information of the described first user devices allocation D2D communication resource in order to indicate described target BS.
In the said method that the embodiment of the present invention provides, the subscriber equipment that carries out D2D communication directly connectsReceive target BS send local resource, make this subscriber equipment carry out community switch time without interrupt D2DCommunication process, must interrupt D2D when switch the subscriber equipment community of communicating by letter with D2D in prior art and communicate by letterProcess is compared, and keeps the sustainability of D2D communication, improves the quality that community switching efficiency is communicated by letter with D2D.
In a kind of possible embodiment, in the said method that the embodiment of the present invention provides, described indication letterBreath comprises: carry out each other the first user equipment of described D2D communication and the second subscriber equipmentTranslational speed, moving direction and positional information.
In a kind of possible embodiment, in the said method that the embodiment of the present invention provides, establishThe standby local resource sending to the first user equipment receiving target base station of equipment room D2D communication, comprising:Carrying out that the described first user equipment receiving target base station of the communication of D2D between device-to-device sendsRRC connects reconfigure command, and wherein, described RRC connects reconfigure command and comprises described target BSFor the local resource of described first user devices allocation; Described first user equipment connects heavy from described RRCConfiguration order is obtained local resource.
A kind of community switching device shifter that the embodiment of the present invention provides, comprising: processing unit, and for determiningThe subscriber equipment that carries out D2D communication between device-to-device need to carry out community switching; Transmitting element, connectsTo described processing unit, send handover request order for the target BS to described subscriber equipment, wherein,It is described user equipment allocation D2D communication that described handover request order comprises indicating described target BSThe indication information of resource.
In the said apparatus that the embodiment of the present invention provides, determine that the subscriber equipment that is carrying out D2D communication needsWhile carrying out community switching, send and comprise that subscriber equipment is carrying out D2D to the target BS of this subscriber equipmentThe handover request order of the indication information of communication, for example: indication information can comprise that subscriber equipment D2D is logicalBelieving required resource, is user equipment allocation D2D signal post thereby make target BS according to indication informationThe resource needing, and directly notice, to this subscriber equipment, realizes when switch community and communicating by letter without interrupting D2DJourney, must interrupt D2D communication process phase when switch the subscriber equipment community of communicating by letter with D2D in prior artRatio, keeps the sustainability of D2D communication, improves the quality that community switching efficiency is communicated by letter with D2D.
In a kind of possible embodiment, in the said apparatus that the embodiment of the present invention provides, described indication letterBreath comprises: carry out each other the first user equipment of described D2D communication and the second subscriber equipmentTranslational speed, moving direction and positional information.
In a kind of possible embodiment, in the said apparatus that the embodiment of the present invention provides, also comprise: sentenceDisconnected unit, is connected to described transmitting element, for the target base to described subscriber equipment at described transmitting elementBefore the transmission handover request of standing order, according to the movement of described first user equipment and described the second subscriber equipmentSpeed, moving direction and positional information, judge described first user equipment and described the second subscriber equipmentThe whether identical or described first user equipment of moving direction becomes with the moving direction of described the second subscriber equipmentWhether acute angle is less than first threshold, and the mobile speed of described first user equipment and described the second subscriber equipmentWhether the absolute value of the difference of degree is less than Second Threshold; Described transmitting element specifically for: when described judging unitDetermine the identical or described first user of the moving direction of described first user equipment and described the second subscriber equipmentThe moving direction of equipment and described the second subscriber equipment acutangulates and is less than first threshold, and described the first useWhen the absolute value of the difference of the translational speed of family equipment and described the second subscriber equipment is less than Second Threshold, describedSend unit to send handover request order to the target BS of described subscriber equipment.
In a kind of possible embodiment, in the said apparatus that the embodiment of the present invention provides, this device also wrapsDraw together: receiving element, be connected to described processing unit, carrying out D2D between device-to-device for receivingThe handover request order that switch the community that the source base station of the subscriber equipment of communication sends, wherein said handover requestOrder comprises indicating described processing unit carrying out the D2D communication resource for this user equipment allocationIndication information; Described processing unit is also for the handover request order that receives according to described receiving elementIn indication information be this user equipment allocation local resource, and notice to this subscriber equipment.
A kind of community switching device shifter that the embodiment of the present invention provides, comprising: receiving element, and for receivingCarry out the handover request of the community switching of the source base station transmission of the subscriber equipment of D2D communication between device-to-deviceOrder, it is this user equipment allocation D2D that wherein said handover request order comprises indicating this deviceThe indication information of the communication resource; Processing unit, is connected to described receiving element, for single according to described receptionIndication information in the handover request order that unit receives is this user equipment allocation local resource, and notice is givenThis subscriber equipment.
In the said apparatus that the embodiment of the present invention provides, establish receiving the user who carries out D2D communicationWhat standby source base station sent comprises that subscriber equipment is carrying out the handover request life of the indication information of D2D communicationOrder, for example: indication information can comprise the resource that subscriber equipment D2D signal post needs, according to indication informationFor the resource of user equipment allocation D2D signal post need, and directly notice, to this subscriber equipment, realizes communityWhen switching, without interrupting D2D communication process, switch the subscriber equipment community of communicating by letter with D2D in prior artShi Bixu interrupts D2D communication process and compares, and keeps the sustainability of D2D communication, improves community and switches effectThe quality that rate is communicated by letter with D2D.
In a kind of possible embodiment, in the said apparatus that the embodiment of the present invention provides, described indication letterBreath comprises: carry out each other the first user equipment of described D2D communication and the second subscriber equipmentTranslational speed, moving direction and positional information; The switching that described processing unit receives according to receiving elementIndication information in request command is described user equipment allocation local resource, is specially: described processing unitAccording to the translational speed of described first user equipment and described the second subscriber equipment, moving direction and position letterBreath is described user equipment allocation local resource.
In a kind of possible embodiment, in the said apparatus that the embodiment of the present invention provides, described processing is singleUnit will notify to described subscriber equipment and comprise for the local resource of described user equipment allocation: described processing unitSend radio resource control RRC connection reconfiguration order to described subscriber equipment, wherein, described RRC connectsConnect reconfigure command and comprise that described processing unit is the local resource of described user equipment allocation.
D2D communicator between a kind of device-to-device that the embodiment of the present invention provides, comprising: receiving element,For receiving the first user equipment at the described device place of carrying out the communication of D2D between device-to-deviceThe local resource that target BS sends; Transmitting element, be connected to described receiving element, for receivingDescribed local resource notify to carrying out with the first user equipment at this device place that D2D communicates by letter secondSubscriber equipment, the first user equipment at this device place uses described local resource and described the second subscriber equipmentCarry out D2D communication, wherein, described local resource is the switching that described target BS sends according to source base stationRequest command distributes for the first user equipment at described device place, wherein, and described handover request orderComprising indicating described target BS is the instruction of the described first user devices allocation D2D communication resourceInformation.
In the said apparatus that the embodiment of the present invention provides, carrying out the use at this device place of D2D communicationThe local resource that the direct receiving target of family equipment base station sends, is carrying out the subscriber equipment at this device placeWhen switch community without interrupting D2D communication process, the subscriber equipment community of communicating by letter with D2D in prior artWhen switching, must interrupt D2D communication process and compare, keep the sustainability of D2D communication, improve community and cutChange the quality that efficiency is communicated by letter with D2D.
In a kind of possible embodiment, in the said apparatus that the embodiment of the present invention provides, described indication letterBreath comprises: carry out each other the first user equipment of described D2D communication and the second subscriber equipmentTranslational speed, moving direction and positional information.
In a kind of possible embodiment, in the said apparatus that the embodiment of the present invention provides, described reception is singleUnit is specifically for the first use of receiving the described device place of carrying out the communication of D2D between device-to-deviceThe RRC that the target BS of family equipment sends connects reconfigure command, and wherein, described RRC connection is reshuffledOrder comprises that described target BS is the local resource of described first user devices allocation; This device also wrapsDraw together: acquiring unit, be connected to described receiving element, obtain for connecting reconfigure command from described RRCLocal resource.
Brief description of the drawings
The schematic flow sheet of a kind of cell switching method of the source base station side that Fig. 1 provides for the embodiment of the present invention;
The flow process signal of a kind of cell switching method of the target BS side that Fig. 2 provides for the embodiment of the present inventionFigure;
D2D communication means between the device-to-device of the user equipment side that Fig. 3 provides for the embodiment of the present inventionSchematic flow sheet;
The structural representation of a kind of community switching device shifter of the source base station side that Fig. 4 provides for the embodiment of the present invention;
The structural representation of a kind of community switching device shifter of the target BS side that Fig. 5 provides for the embodiment of the present inventionFigure;
D2D communication dress between a kind of device-to-device of the user equipment side that Fig. 6 provides for the embodiment of the present inventionThe structural representation of putting.
Detailed description of the invention
Below in conjunction with accompanying drawing, switch community that the embodiment of the present invention is provided, D2D is logical between device-to-deviceThe detailed description of the invention of letter method and device is described in detail.
The source base station that the embodiment of the present invention is mentioned is that affiliated base station, community, front place is switched in subscriber equipment community,Target BS is the base station under community, place after switch subscriber equipment community, and certainly, same base station is passableAs source base station, also can be used as target BS, herein only in the cell switch process of subscriber equipmentConveniently illustrate and distinguish.
In source base station side, a kind of cell switching method that the embodiment of the present invention provides, as shown in Figure 1, comprising:
Step 102, is carrying out the source base station of the subscriber equipment of D2D communication between device-to-device and is determining this useFamily equipment need to carry out community switching;
Step 104, source base station sends handover request order to the target BS of subscriber equipment, wherein, switchesRequest command comprises in order to indicating target base station being the indication information of this user equipment allocation D2D communication resource.
In the method that the embodiment of the present invention provides, carry out D2D communication subscriber equipment source base station toThe target BS of this subscriber equipment sends and comprises that subscriber equipment is carrying out the cutting of indication information of D2D communicationChange request command, for example: indication information can comprise the resource that subscriber equipment D2D signal post needs, therebyMaking target BS is the resource that user equipment allocation D2D signal post needs according to indication information, and directly logicalKnow to this subscriber equipment, realize community while switching without interrupting D2D communication process, with D2D in prior artWhen switch the subscriber equipment community of communication, must interrupt D2D communication process and compare, what maintenance D2D communicated by letter canContinuation, improves the quality that community switching efficiency is communicated by letter with D2D.
Wherein, be the indication information of this user equipment allocation D2D communication resource in order to indicating target base station,Can comprise this subscriber equipment carry out D2D signal post need resource, by target BS according to this subscriber equipmentThe resource that carrying out D2D signal post needs is directly distributed, for example: size, the type etc. of resource. Certainly,Indication information also can comprise the ongoing D2D signal intelligence of this subscriber equipment, is undertaken by target BSCalculating the resource that this subscriber equipment D2D signal post needs, is then this user equipment allocation D2D communication resource,For example: this subscriber equipment is communicated by letter and carried out game fighting, source base with another subscriber equipment by D2DStand and the progress of the title of this game and game can be sent to target BS, calculate this use by target BSThe game resource that family equipment is required, and be the required game resource of this user equipment allocation.
In the specific implementation, target BS is that subscriber equipment divides according to what receive in order to indicate this target BSThe indication information of joining the D2D communication resource is user equipment allocation local resource, thereby subscriber equipment is existedWhen has switched community, the local resource that can use target BS to distribute carries out D2D communication, in communityWhen switching, without interrupting D2D communication process, keep the sustainability of D2D communication, improve community and switch effectThe quality that rate is communicated by letter with D2D.
As specific embodiment comparatively, suppose that a UE is communicated by letter and carried out by D2D with the 2nd UEGame fighting, when a UE need to carry out community switching, the switching that source base station sends to target BS pleaseAsk in order and can comprise that a UE carries out the needed resource of this game, target BS is according to a UECarrying out the needed resource of this game is a UE Resources allocation, ensures that a UE and the 2nd UE are littleWhat when switch in district, continue carries out D2D communication.
In a kind of possible embodiment, in the method that the embodiment of the present invention provides, indication information comprises:Carry out each other the first user equipment of D2D communication and the translational speed of the second subscriber equipment, moveMoving direction and positional information.
When concrete enforcement, the subscriber equipment that carries out community switching can be first use of carrying out in D2D communicationFamily equipment, can be also the second subscriber equipment carrying out in D2D communication, certainly, can be also to carry out D2DFirst user equipment in communication and the second subscriber equipment carry out community switching simultaneously.
It should be noted that, carry out the required money of the resource of D2D communication and other subscriber equipment cellular communicationsSource is multiplexing, and the indication information that source base station sends to target BS comprises first user equipment and the second useWhen the translational speed of family equipment, moving direction and positional information, target BS is being cut for carrying out communityWhen resource that the user equipment allocation D2D signal post that changes needs, can be according to first user equipment and the second useTranslational speed, moving direction and the positional information of family equipment are distributed, carry out after the switching of community guaranteeing,The cellular communication of other subscriber equipmenies is not disturbed in the D2D communication of subscriber equipment.
Specifically, source base station obtains the moving direction of first user equipment and the second subscriber equipment, mobile speedDegree and positional information can, by the mode of terminal to report, also can be passed through architecture mechanism or base stationSwitch history according to the community of subscriber equipment and infer, wherein, translational speed can be concrete numerical value,Also can be velocity interval.
In a kind of possible embodiment, in the method that the embodiment of the present invention provides, source base station is established to userBefore standby target BS sends handover request order, the method also comprises: source base station is established according to first userTranslational speed, moving direction and the positional information of standby and the second subscriber equipment, judge first user equipment withThe movement side of the moving direction of the second subscriber equipment whether identical or first user equipment and the second subscriber equipmentTo acutangulate whether be less than first threshold, and the translational speed of first user equipment and the second subscriber equipmentThe absolute value of difference whether be less than Second Threshold; Source base station sends handover request to the target BS of subscriber equipmentOrder, is specially: when source base station determine the moving direction of first user equipment and the second subscriber equipment identical orThe moving direction of first user equipment and the second subscriber equipment acutangulates and is less than first threshold, and the first useWhen the absolute value of the difference of the translational speed of family equipment and the second subscriber equipment is less than Second Threshold, source base station is to useThe target BS of family equipment sends handover request order.
In the method that the embodiment of the present invention provides, when the moving direction of first user equipment and the second subscriber equipmentUnanimously, translational speed is when suitable, source base station sends and is comprising subscriber equipment to the target BS of subscriber equipmentCarry out the handover request order of the indication information of D2D communication, the user who carries out D2D communication is establishedStandby carry out community while switching without interrupting D2D communication process, according to the residing scene of subscriber equipment flexiblySelect switching mode, keep the sustainability of D2D communication, raising community switching efficiency is communicated by letter with D2DQuality.
In the specific implementation, when first user equipment is consistent with the moving direction of the second subscriber equipment, mobile speedSpend when suitable, source base station sends and comprises subscriber equipment to carry out D2D logical to the target BS of subscriber equipmentThe handover request order of the indication information of letter, makes the subscriber equipment that carries out D2D communication carry out communityWhen switching without interrupting D2D communication process, still, if first user equipment and the second subscriber equipmentWhen inconsistent the or translational speed of moving direction differs larger, due to along with first user equipment and the second user establishThe variation of standby distance, the signal strength signal intensity of D2D communication changes, and first user equipment and the second user establishStandby can not continue carry out D2D communication, therefore, while switching in community, source base station sends to target BSHandover request order in the indication information that can not comprise subscriber equipment and carrying out D2D communication, therebySelect flexibly switching mode according to the residing scene of subscriber equipment, improve the efficiency of handoff procedure.
Certainly, in the specific implementation, the identical or institute of the moving direction of first user equipment and the second subscriber equipmentAcutangulate and be less than first threshold and all can think that moving direction is consistent, for example: first threshold can be 5 degree. WhenWhen subscriber equipment reports the speed of itself to source base station, source base station can be by calculating the speed of first user equipmentDegree is poor with the speed of the second subscriber equipment, in the difference of the speed of first user equipment and the second subscriber equipmentWhen absolute value is less than Second Threshold, determine that first user equipment is suitable with the second subscriber equipment translational speed, exampleAs: Second Threshold is 0.5 kilometer per hour (KM/h). Certainly, also can determine and move by subscriber equipmentWhether speed is suitable, then reporting base station, for example: the second subscriber equipment finds that the first user receiving establishesFor example, when standby D2D signal keeps a period of time on some strength: keep the second use 5 minutesFamily equipment is determined with the translational speed of first user equipment suitable, the second subscriber equipment can report source base station itsSuitable with first user equipment moving speed. It should be noted that, first threshold and Second Threshold all can be by usingThe default value that family equipment is specified or employing system arranges.
For example, as specific embodiment comparatively: at the relatively-stationary height of the mobile alignment such as high ferro or through streetThe first user equipment and the second subscriber equipment that in speed mobile context, carry out D2D communication, its moving direction oneCause, translational speed is suitable, need to carry out one of therein community while switching, supposes first user equipment needsWhile carrying out community switching, source base station sends and is just comprising first user equipment to the target BS of first user equipmentCarrying out the handover request order of indication information of D2D communication, make to carry out first of D2D communicationWhen subscriber equipment carries out community switching, without interrupting D2D communication process, keep carrying out sustainably D2D and lead toLetter, improves community switching efficiency and D2D communication quality.
In target BS side, a kind of cell switching method that the embodiment of the present invention provides, as shown in Figure 2, bagDraw together:
Step 202, the target BS reception of carrying out the subscriber equipment of D2D communication between device-to-device shouldThe handover request order that switch the community that the source base station of subscriber equipment sends, wherein, wraps in handover request orderDrawing together to indicate this target BS is the indication information of the user equipment allocation D2D communication resource;
Step 204, target BS is user equipment allocation local resource according to indication information, and notice is given useFamily equipment.
In the method that the embodiment of the present invention provides, carry out the target BS of the subscriber equipment of D2D communicationThe subscriber equipment that comprises that receives the source base station transmission of this subscriber equipment is carrying out the indication letter of D2D communicationThe handover request order of breath, for example: indication information can comprise the resource that subscriber equipment D2D signal post needs,Thereby making target BS is the resource that user equipment allocation D2D signal post needs according to indication information, and straightConnection knows to this subscriber equipment, realize community while switching without interrupting D2D communication process, with prior artWhen switch the subscriber equipment community of middle D2D communication, must interrupt D2D communication process and compare, keep D2DThe sustainability of communication, improves the quality that community switching efficiency is communicated by letter with D2D.
In a kind of possible embodiment, in the method that the embodiment of the present invention provides, indication information comprises:Carry out each other the first user equipment of described D2D communication and the translational speed of the second subscriber equipment,Moving direction and positional information; Described target BS is described user equipment allocation according to described indication informationLocal resource, is specially: described target BS is according to described first user equipment and described the second subscriber equipmentTranslational speed, moving direction and positional information be described user equipment allocation local resource.
In a kind of possible embodiment, in the method that the embodiment of the present invention provides, target BS will be for usingThe local resource of family devices allocation is notified to subscriber equipment and is comprised: target BS sends wireless money to subscriber equipmentSource is controlled RRC and is connected reconfigure command, and wherein, RRC connects reconfigure command and comprises that target BS isThe local resource of user equipment allocation.
In the specific implementation, when switch community, the indication information that target BS sends according to source base station is userDevices allocation local resource, and connect reconfigure command notifying user equipment Xin community by RRC and carry outThe resource information of D2D communication, the subscriber equipment that then carries out D2D communication uses the resource of new cell allocationCommunicate, thus while switching in community without interrupting D2D communication process, improve switching efficiency and communicate by letterQuality.
As specific embodiment comparatively, the UE and the 2nd UE that are carrying out D2D communication, whenWhen one UE carries out community switching, a UE receiving target base station connects reconfigure command notice by RRCNew resource information, a UE informs new resource information to carrying out with it of D2D communicationTwo UE, a UE adopts new resource to carry out D2D with the 2nd UE and communicates by letter.
In user equipment side, D2D communication means between a kind of device-to-device that the embodiment of the present invention provides,As shown in Figure 3, comprising:
Step 302, the first user equipment receiving target base station of carrying out D2D communication between device-to-deviceThe local resource sending;
Step 304, first user equipment notifies the local resource receiving to establishing with this first userStandby the second subscriber equipment that carries out D2D communication;
Step 306, first user equipment uses local resource to carry out D2D with the second subscriber equipment and communicates by letter, itsIn, local resource is that the handover request order that target BS sends according to source base station is first user devices allocation, wherein, handover request order comprises that in order to indicating target base station be first user devices allocation D2DThe indication information of the communication resource.
In the method that the embodiment of the present invention provides, the subscriber equipment that carries out D2D communication directly receives orderThe local resource that mark base station sends, makes this subscriber equipment logical without interrupting D2D in the time carrying out community switchingLetter process, must interrupt D2D when switch the subscriber equipment community of communicating by letter with D2D in prior art and communicate by letterJourney is compared, and keeps the sustainability of D2D communication, improves the quality that community switching efficiency is communicated by letter with D2D.
In a kind of possible embodiment, in the method that the embodiment of the present invention provides, indication information comprises:Carry out each other the first user equipment of described D2D communication and the translational speed of the second subscriber equipment,Moving direction and positional information.
In a kind of possible embodiment, in the method that the embodiment of the present invention provides, carrying out equipment and arrivingThe local resource that the first user equipment receiving target base station of equipment room D2D communication sends, comprising:The RRC that carries out the first user equipment receiving target base station transmission of D2D communication between device-to-device connects heavyConfiguration order, wherein, RRC connects reconfigure command and comprises that target BS is first user devices allocationLocal resource; First user equipment connects reconfigure command from RRC and obtains local resource.
In source base station side, a kind of community switching device shifter that the embodiment of the present invention provides, as shown in Figure 4, comprising:Processing unit 402, the subscriber equipment that is carrying out D2D communication between device-to-device for determining need to carry outSwitch community; Transmitting element 404, is connected to processing unit 402, for the target BS to subscriber equipmentSend handover request order, wherein, it is that subscriber equipment divides that handover request order comprises in order to indicating target base stationJoin the indication information of the D2D communication resource.
In the device that the embodiment of the present invention provides, determine that the subscriber equipment that is carrying out D2D communication need to enterWhen switch row community, send and comprise that subscriber equipment is carrying out D2D and leading to the target BS of this subscriber equipmentThe handover request order of the indication information of letter, for example: indication information can comprise subscriber equipment D2D communicationRequired resource is user equipment allocation D2D signal post need thereby make target BS according to indication informationResource, and directly notice to this subscriber equipment, realize community while switching without interrupting D2D communication process,When switching, the subscriber equipment community of communicating by letter with D2D in prior art must interrupt compared with D2D communication process,Keep the sustainability of D2D communication, improve the quality that community switching efficiency is communicated by letter with D2D.
In a kind of possible embodiment, in the device that the embodiment of the present invention provides, indication information comprises:Carry out each other the first user equipment of described D2D communication and the translational speed of the second subscriber equipment,Moving direction and positional information.
In a kind of possible embodiment, in the device that the embodiment of the present invention provides, also comprise: judgement is singleUnit 406, is connected to transmitting element 404, for sending and cut to the target BS of subscriber equipment at transmitting elementBefore changing request command, according to the translational speed of first user equipment and the second subscriber equipment, moving direction withAnd positional information, judge whether identical or the first use of the moving direction of first user equipment and the second subscriber equipmentThe moving direction of family equipment and the second subscriber equipment acutangulates whether be less than first threshold and first userWhether the absolute value of the difference of the translational speed of equipment and the second subscriber equipment is less than Second Threshold; Transmitting element404 specifically for: when judging unit 406 is determined the moving direction of first user equipment and the second subscriber equipmentMoving direction identical or first user equipment and the second subscriber equipment acutangulates and is less than first threshold, andWhen the absolute value of the difference of the translational speed of first user equipment and the second subscriber equipment is less than Second Threshold, sendUnit 404 sends handover request order to the target BS of subscriber equipment.
In a kind of possible embodiment, in the device that the embodiment of the present invention provides, this device also comprises:Receiving element 408, is connected to processing unit 402, is carrying out D2D between device-to-device lead to for receptionThe handover request order that switch the community that the source base station of the subscriber equipment of letter sends, wherein in handover request orderComprising indicating described processing unit is the indication information of this user equipment allocation D2D communication resource; PlaceReason unit 402 also for: the indication information of the handover request order receiving according to receiving element 408 isThis user equipment allocation local resource, and notice is to this subscriber equipment. That is to say, in the embodiment of the present inventionThe community switching device shifter providing, can be used as the source base station of UE, also can be used as the target BS of UE,There is dual-use function.
Preferably, in the embodiment of the present invention, this community switching device shifter can be one in the network equipment such as base stationPart, can be also the network equipments such as base station, and this community switching device shifter can be used as source base station, also can doFor target BS, wherein, processing unit 402 and judging unit 406 can adopt single-chip microcomputer or CPU placeReason device etc., transmitting element 404 can adopt emitter or signal transmitter, and receiving element 408 can adoptReceiver or signal receiver.
In target BS side, a kind of community switching device shifter that the embodiment of the present invention provides, as shown in Figure 5, bagDraw together: receiving element 502, for receiving the source of carrying out the subscriber equipment of D2D communication between device-to-deviceThe handover request order that switch the community that base station sends, wherein handover request order comprises indicating this dressBe set to the indication information of this user equipment allocation D2D communication resource; Processing unit 504, is connected to and receives listUnit 502 is this user for the indication information of the handover request order that receives according to receiving element 502Devices allocation local resource, and notice is to this subscriber equipment.
In the device that the embodiment of the present invention provides, receiving the subscriber equipment that carries out D2D communicationThe subscriber equipment that comprises that source base station sends is carrying out the handover request order of the indication information of D2D communication,For example: indication information can comprise the resource that subscriber equipment D2D signal post needs, be use according to indication informationThe resource that family devices allocation D2D signal post needs, and directly notice, to this subscriber equipment, realizes community and switchesShi Wuxu interrupts D2D communication process, must when switch the subscriber equipment community of communicating by letter with D2D in prior artMust interrupt D2D communication process and compare, keep the sustainability of D2D communication, improve community switching efficiency andThe quality of D2D communication.
In a kind of possible embodiment, in the device that the embodiment of the present invention provides, indication information comprises:Carry out each other the first user equipment of D2D communication and the translational speed of the second subscriber equipment, moveMoving direction and positional information; The handover request that described processing unit 504 receives according to receiving element 502Indication information in order is user equipment allocation local resource, is specially: processing unit 504 is according to firstTranslational speed, moving direction and the positional information of subscriber equipment and the second subscriber equipment divided for this subscriber equipmentJoin local resource.
In a kind of possible embodiment, in the device that the embodiment of the present invention provides, processing unit 504 willNotify to subscriber equipment and comprise for the local resource of user equipment allocation: processing unit 504 is sent out to subscriber equipmentSend radio resource control RRC connection reconfiguration order, wherein, RRC connects reconfigure command and comprises placeThe local resource that reason unit 504 is user equipment allocation.
Preferably, in the embodiment of the present invention, this community switching device shifter can be one in the network equipment such as base stationPart, can be also the network equipments such as base station, and this community switching device shifter can be used as source base station, also can doFor target BS, wherein, receiving element 502 can adopt receiver or signal receiver, processing unit 504Can adopt single-chip microcomputer or CPU processor etc.
In user equipment side, D2D communicator between a kind of device-to-device that the embodiment of the present invention provides,As shown in Figure 6, comprising: receiving element 602, is carrying out D2D communication between device-to-device for receivingThis device place subscriber equipment target BS send local resource; Transmitting element 604, is connected toReceiving element 602, for the local resource receiving is notified to the first user at this device placeEquipment carries out the second subscriber equipment of D2D communication, and the first user equipment at this device place uses this communityResource is carried out D2D with the second subscriber equipment and is communicated by letter, and wherein, local resource is that target BS is according to source base stationThe first user equipment that the handover request order sending is this device place distributes, wherein, and handover requestIt is the described first user devices allocation D2D communication resource that order comprises indicating described target BSIndication information.
In the device that the embodiment of the present invention provides, the user who is carrying out this device place of D2D communication establishesThe standby local resource that directly receiving target base station sends, makes the subscriber equipment at this device place carry out communityWhen switching, without interrupting D2D communication process, switch the subscriber equipment community of communicating by letter with D2D in prior artShi Bixu interrupts D2D communication process and compares, and keeps the sustainability of D2D communication, improves community and switches effectThe quality that rate is communicated by letter with D2D.
In a kind of possible embodiment, in the device that the embodiment of the present invention provides, indication information comprises:Carry out each other the first user equipment of D2D communication and the translational speed of the second subscriber equipment, moveMoving direction and positional information.
In a kind of possible embodiment, in the device that the embodiment of the present invention provides, receiving element 602 toolsBody is used for: receive the first user equipment that is carrying out this device place of D2D communication between device-to-deviceTarget BS send RRC connect reconfigure command, wherein, RRC connect reconfigure command compriseTarget BS is the local resource of this first user devices allocation; This device also comprises: acquiring unit 606,Be connected to receiving element 602, obtain local resource for connecting reconfigure command from RRC.
Preferably, in the embodiment of the present invention, between this device-to-device, D2D communicator can be that user establishesA part in standby, can be also subscriber equipment, and wherein, receiving element 602 can adopt receiver or letterNumber receiver, transmitting element 604 can adopt emitter or signal projector, and acquiring unit 606 can be adoptedUse reader.
The embodiment of the present invention provides D2D communication means and device between the switching of a kind of community, device-to-device,By receiving the spectrum requirement information of the base station under the OAM of each operator management, according to spectrum requirement informationCarry out frequency spectrum resource distribution, realized the distribution of dynamic adjustment frequency spectrum resource, by centralized management mode,By frequency spectrum resource reasonable distribution between each operator, effectively promote the service efficiency of frequency spectrum resource, have simultaneouslyBe beneficial to the demand that meets the following spectral efficient of mobile communication and two-forty.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or meterCalculation machine program product. Therefore, the present invention can adopt complete hardware implementation example, completely implement software example or knotClose the form of the embodiment of software and hardware aspect. And the present invention can adopt at one or more wherein bagsThe computer-usable storage medium that contains computer usable program code (include but not limited to magnetic disc store andOptical memory etc.) form of the upper computer program of implementing.
The present invention is that reference is according to the method for the embodiment of the present invention, equipment (system) and computer program productThe flow chart of product and/or block diagram are described. Should understand can be by computer program instructions realization flow figure and/ or block diagram in each flow process and/or flow process in square frame and flow chart and/or block diagram and/Or the combination of square frame. Can provide these computer program instructions to all-purpose computer, special-purpose computer, embeddingThe processor of formula processor or other programmable data processing device, to produce a machine, makes by calculatingThe instruction that the processor of machine or other programmable data processing device is carried out produces for realizing at flow chart oneThe device of the function of specifying in square frame of individual flow process or multiple flow process and/or block diagram or multiple square frame.
These computer program instructions also can be stored in energy vectoring computer or other programmable data processing are establishedIn the standby computer-readable memory with ad hoc fashion work, make to be stored in this computer-readable memoryInstruction produce and comprise the manufacture of command device, this command device is realized in flow process or multiple of flow chartThe function of specifying in square frame of flow process and/or block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, makeMust on computer or other programmable devices, carry out sequence of operations step to produce computer implemented placeReason, thus the instruction of carrying out on computer or other programmable devices is provided for realizing one of flow chartThe step of the function of specifying in square frame of flow process or multiple flow process and/or block diagram or multiple square frame.
Obviously, those skilled in the art can carry out various changes and modification and not depart from this present inventionBright spirit and scope. Like this, if of the present invention these amendment and modification belong to the claims in the present invention andWithin the scope of its equivalent technologies, the present invention be also intended to comprise these change and modification interior.
Claims (19)
1. a cell switching method, is characterized in that, comprising:
Carrying out the source base station of the subscriber equipment of D2D communication between device-to-device and determining that this subscriber equipment needsCarry out community switching;
Described source base station sends handover request order to the target BS of described subscriber equipment, wherein, described in cutChanging request command, to comprise indicating described target BS be the described user equipment allocation D2D communication resourceIndication information.
2. method according to claim 1, is characterized in that, described indication information comprises:
Carry out each other the movement of first user equipment and second subscriber equipment of described D2D communicationSpeed, moving direction and positional information.
3. method according to claim 2, is characterized in that, described source base station is established to described userBefore standby target BS sends handover request order, the method also comprises:
Described source base station is according to translational speed, the movement of described first user equipment and described the second subscriber equipmentDirection and positional information, judge that the moving direction of described first user equipment and described the second subscriber equipment isWhether no moving direction identical or described first user equipment and described the second subscriber equipment acutangulates littleIn first threshold, and the difference of the translational speed of described first user equipment and described the second subscriber equipment is exhaustedWhether value is less than to Second Threshold;
Described source base station sends handover request order to the target BS of described subscriber equipment, is specially:
When described source base station is determined the moving direction phase of described first user equipment and described the second subscriber equipmentMoving direction same or described first user equipment and described the second subscriber equipment acutangulates and is less than the first thresholdValue, and the absolute value of the difference of the translational speed of described first user equipment and described the second subscriber equipment is less thanWhen Second Threshold, described source base station sends handover request order to the target BS of described subscriber equipment.
4. a cell switching method, is characterized in that, comprising:
The target BS that is carrying out the subscriber equipment of D2D communication between device-to-device receives this subscriber equipmentSource base station send community switch handover request order, wherein, described handover request order comprises useTo indicate the indication information of described target BS as the described user equipment allocation D2D communication resource;
Described target BS is described user equipment allocation local resource according to described indication information, and notice is givenDescribed subscriber equipment.
5. method according to claim 4, is characterized in that, described indication information comprises:
Carry out each other the movement of first user equipment and second subscriber equipment of described D2D communicationSpeed, moving direction and positional information;
Described target BS is described user equipment allocation local resource according to described indication information, is specially:
Described target BS according to the translational speed of described first user equipment and described the second subscriber equipment, moveMoving direction and positional information are described user equipment allocation local resource.
6. method according to claim 4, is characterized in that, described target BS will be described useThe local resource of family devices allocation is notified to described subscriber equipment and is comprised:
Described target BS sends radio resource control RRC connection reconfiguration order to described subscriber equipment,Wherein, described RRC connects reconfigure command and comprises that described target BS is described user equipment allocationLocal resource.
7. a D2D communication means between device-to-device, is characterized in that, comprising:
That is carrying out that the first user equipment receiving target base station of the communication of D2D between device-to-device sends is littleArea resource;
Described first user equipment notifies the described local resource receiving to establishing with this first userStandby the second subscriber equipment that carries out D2D communication;
Described first user equipment uses described local resource to carry out D2D with described the second subscriber equipment and communicates by letter,
Wherein, described local resource for described target BS according to source base station send handover request order be instituteState first user devices allocation, wherein, described handover request order comprises indicating described target baseStand as the indication information of the described first user devices allocation D2D communication resource.
8. method according to claim 7, is characterized in that, described indication information comprises:
Carry out each other the movement of first user equipment and second subscriber equipment of described D2D communicationSpeed, moving direction and positional information.
9. method according to claim 7, is characterized in that, is carrying out D2D between device-to-deviceThe local resource that the first user equipment receiving target base station of communication sends, comprising:
The described first user equipment receiving target base station of carrying out D2D communication between device-to-device sendsRRC connect reconfigure command, wherein, described RRC connects reconfigure command and comprises described target baseStand as the local resource of described first user devices allocation;
Described first user equipment connects reconfigure command from described RRC and obtains local resource.
10.Yi Zhong community switching device shifter, is characterized in that, comprising:
Processing unit, the subscriber equipment that is carrying out D2D communication between device-to-device for determining need to enterSwitch row community;
Transmitting element, is connected to described processing unit, sends and cuts for the target BS to described subscriber equipmentChange request command, wherein, it is described user that described handover request order comprises indicating described target BSThe indication information of the devices allocation D2D communication resource.
11. devices according to claim 10, is characterized in that, described indication information comprises:
Carry out each other the movement of first user equipment and second subscriber equipment of described D2D communicationSpeed, moving direction and positional information.
12. devices according to claim 11, is characterized in that, also comprise:
Judging unit, is connected to described transmitting element, at described transmitting element to described subscriber equipmentBefore target BS sends handover request order, according to described first user equipment and described the second subscriber equipmentTranslational speed, moving direction and positional information, judge described first user equipment and described the second userThe movement side of the moving direction of equipment whether identical or described first user equipment and described the second subscriber equipmentTo acutangulate whether be less than first threshold, and described first user equipment and described the second subscriber equipmentWhether the absolute value of the difference of translational speed is less than Second Threshold;
Described transmitting element specifically for:
When described judging unit is determined the moving direction of described first user equipment and described the second subscriber equipmentThe moving direction of identical or described first user equipment and described the second subscriber equipment acutangulates and is less than firstThreshold value, and the absolute value of the difference of the translational speed of described first user equipment and described the second subscriber equipment is littleIn the time of Second Threshold, described transmitting element sends handover request order to the target BS of described subscriber equipment.
13. according to the device described in any one in claim 10-12, it is characterized in that, this device also wrapsDraw together:
Receiving element, is connected to described processing unit, is carrying out D2D between device-to-device for receivingThe handover request order that switch the community that the source base station of the subscriber equipment of communication sends, wherein said handover requestIt is the indication letter of this user equipment allocation D2D communication resource that order comprises indicating described processing unitBreath;
Described processing unit is also for the instruction of the handover request order receiving according to described receiving elementInformation is this user equipment allocation local resource, and notice is to this subscriber equipment.
14.Yi Zhong community switching device shifter, is characterized in that, comprising:
Receiving element, for receiving the source base that carries out the subscriber equipment of D2D communication between device-to-deviceStand send community switch handover request order, wherein said handover request order comprise in order to instruction shouldDevice is the indication information of this user equipment allocation D2D communication resource;
Processing unit, is connected to described receiving element, please for the switching receiving according to described receiving elementAsking the indication information in order is this user equipment allocation local resource, and notice is to this subscriber equipment.
15. devices according to claim 14, is characterized in that, described indication information comprises:
Carry out each other the movement of first user equipment and second subscriber equipment of described D2D communicationSpeed, moving direction and positional information;
Described in indication information in the handover request order that described processing unit receives according to receiving element isUser equipment allocation local resource, is specially:
Described processing unit according to the translational speed of described first user equipment and described the second subscriber equipment, moveMoving direction and positional information are described user equipment allocation local resource.
16. devices according to claim 14, is characterized in that, described in described processing unit will beThe local resource of user equipment allocation is notified to described subscriber equipment and is comprised:
Described processing unit sends radio resource control RRC connection reconfiguration order to described subscriber equipment,Wherein, described RRC connects reconfigure command and comprises that described processing unit is described user equipment allocationLocal resource.
D2D communicator between 17. 1 kinds of device-to-devices, is characterized in that, comprising:
Receiving element, for receiving the described device place of carrying out D2D between device-to-device communicationThe local resource that the target BS of first user equipment sends;
Transmitting element, is connected to described receiving element, for the described local resource receiving being notified to justCarrying out with the first user equipment at this device place the second subscriber equipment that D2D communicates by letter, this device placeFirst user equipment use described local resource to carry out D2D with described the second subscriber equipment to communicate by letter,
Wherein, described local resource for described target BS according to source base station send handover request order be instituteState that the first user equipment at device place distributes, wherein, described handover request order comprises in order to refer toShow that described target BS is the indication information of the described first user devices allocation D2D communication resource.
18. devices according to claim 17, is characterized in that, described indication information comprises:
Carry out each other the movement of first user equipment and second subscriber equipment of described D2D communicationSpeed, moving direction and positional information.
19. devices according to claim 17, is characterized in that, described receiving element specifically for:
Receive the first user equipment at the described device place of carrying out the communication of D2D between device-to-deviceThe RRC that target BS sends connects reconfigure command, wherein, in described RRC connection reconfigure command, wrapsDraw together the local resource that described target BS is described first user devices allocation;
This device also comprises:
Acquiring unit, is connected to described receiving element, obtains for connecting reconfigure command from described RRCLocal resource.
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| CN201410635613.2A CN105592509A (en) | 2014-11-05 | 2014-11-05 | Cell switching method and apparatus, and device to device (D2D) communication method and apparatus |
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| CN201410635613.2A CN105592509A (en) | 2014-11-05 | 2014-11-05 | Cell switching method and apparatus, and device to device (D2D) communication method and apparatus |
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Application publication date: 20160518 |