CN103079217B - Sounding reference signal resource is determined method, Apparatus and system - Google Patents
Sounding reference signal resource is determined method, Apparatus and system Download PDFInfo
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- CN103079217B CN103079217B CN201210579137.8A CN201210579137A CN103079217B CN 103079217 B CN103079217 B CN 103079217B CN 201210579137 A CN201210579137 A CN 201210579137A CN 103079217 B CN103079217 B CN 103079217B
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Abstract
The application discloses a kind of sounding reference signal resource and has determined method, Apparatus and system. Wherein, described method comprises the steps: to measure the translational speed of subscriber equipment; Determine the detection reference signal SRS resource of distributing to subscriber equipment according to the translational speed of subscriber equipment, wherein, sounding reference signal resource comprises detection reference signal bandwidth and detection reference signal cycle. Such scheme is determined the resource of distributing to detection reference signal according to the translational speed of subscriber equipment, can effectively save SRS resource, improves the quantity of accessible user in community.
Description
Technical field
The application relates to the communications field, particularly relates to a kind of sounding reference signal resource and determines sideMethod, Apparatus and system.
Background technology
In Long Term Evolution (LongTermEvolution, LTE) system, subscriber equipment is to base stationSend data and must carry out uplink synchronous, use the subscriber equipment of the diverse location of same time slot to sendUpward signal arrive the reception antenna of base station simultaneously so that base station demodulates each subscriber equipment instituteThe data that send. Detection reference signal (SoundingReferenceSignal, SRS) be forMeasure the signal of the radio channel information between subscriber equipment and base station. Subscriber equipment is according to the finger of base stationShow, periodically on last data symbol of subframe (time) according to the bandwidth of distributing to(frequency) sends SRS signal. Base station must be according to the SRS receiving within the regular hourInclined to one side when signal is adjusted, if inclined to one side could not enough adjust within the regular hour time, user terminal can enterEnter uplink loss state, thereby cause base station can not carry out demodulation. But offset is whole will carry out time,Must before subscriber equipment generation uplink loss, obtain enough SRS sample of signal amounts. SRS signalSample size with distribute to the bandwidth of subscriber equipment and measure number of times relevant, distribute to subscriber equipmentBandwidth is larger, and the SRS sample of signal amount of carrying is more, and the number of times of measurement is more, collectsSRS sample of signal amount is more. Because each cycle can measure, so the cycle is shorter, canThe number of times of measuring is more, and the SRS sample of signal amount of collecting is more.
So, determine that to distribute to the resource of detection reference signal extremely important, establish distributing to userIn the definite situation of standby bandwidth, if detection reference signal excessive cycle, inclined to one side will cause timeBe not adjusted for a long time, time partially excessive, cause user terminal to enter uplink loss state, and then leadCause base station and can not carry out demodulation. If the detection reference signal cycle is too short, can send on overfrequency groundDetection reference signal, thus the waste of SRS resource caused. And SRS resource is certain,And each subscriber equipment must occupy certain SRS resource, the waste of SRS resource will causeReduce in community can simultaneous communications user device quantity.
Prior art provides a kind of detection reference signal cycle to determine method, is just starting, and networksSubscriber equipment when fewer, give the comparatively well-to-do SRS resource of each user equipment allocation, when newlyThe subscriber equipment networking is while increasing, elongate new networking user's equipment transmission SRS signal cycle withAnd the bandwidth of new networking user's equipment is distributed in minimizing.
But prior art exists obvious defect, for the subscriber equipment early networking, canBe assigned to well-to-do SRS resource, subscriber equipment can be assigned to shorter transmission SRS signalCycle and more bandwidth, for the subscriber equipment of more late networking, can only reduce the SRS being assigned toResource, can only elongate and send the cycle of SRS signal and reduce bandwidth. Due to the use early networkingFamily equipment adopts well-to-do SRS resource distribution mode, so wasted significantly SRS resource.For the subscriber equipment of more late networking, although can send the cycle of SRS signal and subtract by elongationThe mode that few this minimizing of bandwidth takies SRS resource networks, and still, SRS resource is fixed,And bandwidth is that the cycle that impossible be ad infinitum reduced and send SRS signal is ad infinitum to drawLong, in the time that the cycle of bandwidth minimizing or SRS signal is elongated postcritical, can cause usingFamily equipment generation uplink loss. Therefore when base station is found to send SRS signal by pulling on long hair againCycle and while reducing the mode of bandwidth to user equipment allocation SRS resource, base station will refuse to useFamily equipment access, thus limit accessible user's quantity in community.
Summary of the invention
The technical problem that the application mainly solves is to provide a kind of sounding reference signal resource and determines sideMethod, Apparatus and system, can save sounding reference signal resource, improves accessible user in communityQuantity.
For solving the problems of the technologies described above, the application's first aspect provides a kind of sounding reference signal resourceDetermine method, comprise the steps: to measure the translational speed of subscriber equipment; Establish according to described userStandby translational speed is determined the detection reference signal SRS resource of distributing to described subscriber equipment, itsIn, sounding reference signal resource comprises detection reference signal bandwidth and detection reference signal cycle.
In conjunction with first aspect, in the possible embodiment of the first of the application's first aspect, described inDetermine the step of the resource of distributing to detection reference signal according to the translational speed of described subscriber equipmentComprise: the detection reference signal that obtains described subscriber equipment according to the translational speed of described subscriber equipmentMeasure duration, wherein, it is up for ensureing described subscriber equipment that described detection reference signal is measured durationSynchronous maximum duration; Obtain the detection reference signal bandwidth of distributing to described subscriber equipment, according toDescribed detection reference signal bandwidth calculation obtains the number of times of required measurement detection reference signal; Make to visitSurveying cycle reference signal is greater than the first thresholding and is less than described detection reference signal measurement duration and instituteState the number of times of measuring detection reference signal ratio, equal described detection reference signal measure duration withThe ratio of the number of times of described measurement detection reference signal, or, be greater than described detection reference signal and measureThe ratio of the number of times of duration and described measurement detection reference signal and be less than the second thresholding, so that described inSubscriber equipment sends described detection reference signal by the described detection reference signal cycle.
In conjunction with the possible embodiment of the first of first aspect, the second of the application's first aspectIn possible embodiment, the described translational speed according to described subscriber equipment obtains described user and establishesThe step that standby detection reference signal is measured duration comprises: according to the translational speed of described subscriber equipmentDetermine speed class, and determine the detection reference signal of described subscriber equipment according to described speed classMeasure duration.
In conjunction with the possible embodiment of the second of first aspect, the third of the application's first aspectIn possible embodiment, described speed class comprises low speed grade and high speed grade.
In conjunction with the third possible embodiment of first aspect, the 4th kind of the application's first aspectIn possible embodiment, the translational speed that described low speed grade is described subscriber equipment is less than 30Kilometer per hour; The translational speed that described high speed grade is described subscriber equipment is more than or equal to 30Kilometer per hour.
In conjunction with first aspect, in the 5th kind of possible embodiment of the application's first aspect, described inMethod also comprises: in the time that the translational speed of subscriber equipment changes, redefine and distribute to detectionThe resource of reference signal.
For solving the problems of the technologies described above, the application's second aspect also provides a kind of detection reference signal moneySource determining device, comprising: measurement module and distribution module, described measurement module is used for measuring useThe translational speed of family equipment, described measurement module by the translational speed of described subscriber equipment to described pointJoining module sends; Described distribution module is for receiving the translational speed of described subscriber equipment, according to instituteState the translational speed of subscriber equipment and determine the sounding reference signal resource of distributing to described subscriber equipment,Wherein, sounding reference signal resource comprises detection reference signal bandwidth and detection reference signal weekPhase.
In conjunction with second aspect, in the possible embodiment of the first of the application's second aspect, described inDistribution module comprises: measure duration unit, measure time counting unit and determining unit, described measurementDuration unit is for obtaining the detection of described subscriber equipment according to the translational speed of described subscriber equipmentReference signal is measured duration, and wherein, described detection reference signal is measured duration for ensureing described userThe maximum duration of equipment uplink synchronous, described detection reference signal is measured in described measurement duration unitDuration sends to described determining unit; Described measurement time counting unit is used for obtaining distributes to described userThe detection reference signal bandwidth of equipment, obtains required survey according to described detection reference signal bandwidth calculationThe number of times of amount detection reference signal, described measurement time counting unit is by described measurement detection reference signalNumber of times sends to described determining unit; Described determining unit is used for receiving described detection reference signal and surveysThe number of times of amount duration and described measurement detection reference signal, is greater than the detection reference signal cycleThe first thresholding and be less than described detection reference signal and measure duration and described measurement detection reference signalNumber of times ratio, equal described detection reference signal and measure duration and survey with reference to believing with described measurementNumber the ratio of number of times, or, be greater than described detection reference signal and measure duration and described measurement detectionThe ratio of the number of times of reference signal and be less than the second thresholding, so that described subscriber equipment is by described detectionCycle reference signal sends described detection reference signal.
In conjunction with the possible embodiment of the first of second aspect, the second of the application's second aspectIn possible embodiment, described measurement duration unit is also for receiving the movement of described subscriber equipmentSpeed, determines speed class according to the translational speed of described subscriber equipment, and according to described speed etc.Level is determined the detection reference signal measurement duration of described subscriber equipment.
In conjunction with the possible embodiment of the second of second aspect, the third of the application's second aspectIn possible embodiment, described speed class comprises low speed grade and high speed grade.
In conjunction with the third possible embodiment of second aspect, the 4th kind of the application's second aspectIn possible embodiment, the translational speed that described low speed grade is described subscriber equipment is less than 30Kilometer per hour; The translational speed that described high speed grade is described subscriber equipment is more than or equal to 30Kilometer per hour.
In conjunction with second aspect, in the 5th kind of possible embodiment of the application's second aspect, described inDistribution module also, in the time that the translational speed of subscriber equipment changes, redefines and distributes to spySurvey the resource of reference signal.
For solving the problems of the technologies described above, the application's third aspect also provides a kind of detection reference signal moneySystem is determined in source, comprises that base station and user arrange, and can carry out between described base station and subscriber equipmentCommunication, wherein, described base station is provided with the device as described in above-mentioned any one.
Because the translational speed of subscriber equipment is when different, the required detection reference signal of subscriber equipmentResource difference. In the time that the translational speed of subscriber equipment is very fast, channel rapid fading, subscriber equipment needsInclined to one side while adjustment quickly, so need more SRS resource; When the translational speed of subscriber equipmentWhen slow, channel slow fading, inclined to one side when subscriber equipment can be adjusted more slowly, so need less SRSResource. So such scheme is determined and is distributed to detection with reference to letter according to the translational speed of subscriber equipmentNumber resource, can effectively save SRS resource, improve the quantity that can be accessed by user in community.
Brief description of the drawings
Fig. 1 is the structural representation that the application's sounding reference signal resource is determined system one embodiment;
Fig. 2 is the symbol that sounding reference signal resource shown in Fig. 1 is determined system transmitting SRS signalSchematic diagram;
Fig. 3 is the bandwidth that sounding reference signal resource shown in Fig. 1 is determined system transmitting SRS signalSchematic diagram;
Fig. 4 is the flow chart that the application's sounding reference signal resource is determined method one embodiment;
Fig. 5 is the flow chart that the application's sounding reference signal resource is determined another embodiment of method;
Fig. 6 is the structural representation of the application's sounding reference signal resource determining device one embodiment;
Fig. 7 is the structural representation of another embodiment of the application's sounding reference signal resource determining deviceFigure;
Fig. 8 is the structural representation of an embodiment again of the application's sounding reference signal resource determining deviceFigure.
Detailed description of the invention
In below describing, in order to illustrate instead of in order to limit, proposed such as particular system structure,The detail of interface, technology and so on, to thoroughly understand the application. But, the skill of this areaArt personnel should be clear, also can realize this in other embodiment that there is no these detailsApplication. In other situation, omit the detailed theory to well-known device, circuit and methodBright, in order to avoid unnecessary details hinders the application's description.
Consult Fig. 1 to Fig. 3, Fig. 1 is that the application's sounding reference signal resource determines to be unified implementationThe structural representation of mode, Fig. 2 is that sounding reference signal resource shown in Fig. 1 is determined system transmitting SRSThe schematic diagram of the symbol of signal, Fig. 3 is that sounding reference signal resource shown in Fig. 1 is determined system transmissionThe schematic diagram of the bandwidth of SRS signal. The sounding reference signal resource of present embodiment is determined system bagDraw together: base station 110 and subscriber equipment 120, can carry out between base station 110 and subscriber equipment 120Communication.
In LTE system, subframe lengths is 1 millisecond. When adopting general cyclic prefix (CyclicPrefix, CP) time, each subframe comprises symbol #0～#13 totally 14 symbols. In up subframeLast symbol, i.e. symbol #13, subscriber equipment 120 sends to base station 110 surveys referencesSignal. For example, the detection reference signal cycle can be 5 milliseconds, 10 milliseconds or 20 milliseconds, 40Millisecond, 80 milliseconds and 160 milliseconds etc. Base station 110 also presets distributes to subscriber equipmentThe bandwidth of 120 SRS signal, for example, it is 4 that the bandwidth of distributing to subscriber equipment 120 can be setIndividual Resource Block (ResourceBlock, RB), 20 Resource Block, 40 Resource Block or 80 moneysSource piece etc.
In the time that subscriber equipment 120 sends SRS signal to base station 110, each Resource Block carriesThe SRS sample of signal of Board Lot. So within a certain period of time, the detection reference signal cycle moreShort, the bandwidth of distributing to SRS signal is wider, the SRS sample of signal that base station 110 receivesMeasure more.
Consult Fig. 4, Fig. 4 is that the application's sounding reference signal resource is determined method one embodimentFlow chart. The reference signal resource of present embodiment determines that method comprises:
S401: the translational speed of base station measurement subscriber equipment.
The translational speed of subscriber equipment is different, for example, and when a people makes a phone call in the time of walking,Subscriber equipment translational speed is slower, still, and in the time making a phone call in the vehicle that a people is running at high speed,Subscriber equipment translational speed is very fast. In the time that the translational speed of subscriber equipment is very fast, channel rapid fading,It is inclined to one side when subscriber equipment need to be adjusted quickly; In the time that the translational speed of subscriber equipment is slower, channel is slowDecline, inclined to one side when subscriber equipment can be adjusted more slowly. So translational speed is subscriber equipment ratio fasterThe slow subscriber equipment of translational speed needs more SRS resource to guarantee before generation uplink lossObtain enough SRS sample of signal amounts. Therefore, determining the SRS money of distributing to subscriber equipmentBefore source, the translational speed of base station measurement subscriber equipment.
S402: the detection ginseng of distributing to subscriber equipment is determined in base station according to the translational speed of subscriber equipmentExamine signal resource, wherein, sounding reference signal resource comprises detection reference signal bandwidth and detectionCycle reference signal.
Base station determines that according to the translational speed of subscriber equipment the detection of distributing to subscriber equipment is with reference to letterNumber SRS resource, for translational speed subscriber equipment faster, shorter detection is distributed in base station as far as possibleCycle reference signal and wider detection reference signal bandwidth thereof are to subscriber equipment; For translational speedSlower subscriber equipment, longer detection reference signal cycle and narrower spy thereof are distributed in base station as far as possibleSurvey reference signal bandwidth to subscriber equipment.
Consult Fig. 5, Fig. 5 is that the application's sounding reference signal resource is determined another embodiment of methodFlow chart. The sounding reference signal resource of present embodiment determines that method comprises the steps:
S501: the translational speed of base station measurement subscriber equipment.
The translational speed of subscriber equipment is different, for example, and when a people makes a phone call in the time of walking,Subscriber equipment translational speed is slower, still, and in the time making a phone call in the vehicle that a people is running at high speed,Subscriber equipment translational speed is very fast. In the time that the translational speed of subscriber equipment is very fast, channel rapid fading,It is inclined to one side when subscriber equipment need to be adjusted quickly; In the time that the translational speed of subscriber equipment is slower, channel is slowDecline, inclined to one side when subscriber equipment can be adjusted more slowly. Therefore, distribute to subscriber equipment determiningBefore SRS resource, the translational speed of base station measurement subscriber equipment.
S502: base station obtains the detection reference signal of subscriber equipment according to the translational speed of subscriber equipmentMeasure duration.
Obtaining after the translational speed of subscriber equipment, base station obtains according to the translational speed of subscriber equipmentThe detection reference signal of subscriber equipment is measured duration. Wherein, described detection reference signal is measured durationFor ensureing the maximum duration of subscriber equipment uplink synchronous, if base station is exceeding detection reference signal surveyAmount duration do not obtain yet enough SRS sample of signal amounts, thereby to time partially adjust, can send outRaw uplink loss.
Save to greatest extent SRS resource in order to realize, can be completely according to the mobile speed of subscriber equipmentDegree is determined detection reference signal measurement duration. But, for the ease of management and saving computational process,Also the translational speed of subscriber equipment can be divided into at least two speed class, each speed classA corresponding detection reference signal is measured duration, guarantees even if this detection reference signal is measured durationWhen subscriber equipment moves with translational speed the fastest in speed class, also can there is not uplink loss.Speed class is determined according to the translational speed of subscriber equipment in base station, and determines user according to speed classThe detection reference signal of equipment is measured duration. For example, the speed class of subscriber equipment is divided in base stationFor low speed grade and high speed grade. If the translational speed of subscriber equipment is less than 30 kilometer per hours,Be defined as low speed grade, and determine the first detection reference signal measurement duration; If subscriber equipmentTranslational speed is more than or equal to 30 kilometer per hours, is defined as high speed grade, and determines that second visitsSurvey reference signal and measure duration, the first detection reference signal is measured duration and is greater than the second detection with reference to letterNumber measure duration. Be understandable that, also speed class can be divided into more than three or threeSpeed class, thereby improve precision.
S503: base station obtains the detection reference signal bandwidth of distributing to subscriber equipment, according to surveying ginsengExamine the number of times that signal bandwidth calculates required measurement detection reference signal.
As mentioned above, base station has set in advance the detection reference signal bandwidth of distributing to subscriber equipmentBe 4 Resource Block (ResourceBlock, RB), 20 Resource Block, 40 Resource Block or80 Resource Block etc. If the translational speed of subscriber equipment is very fast, preferential by wider detectionReference signal allocated bandwidth is to subscriber equipment. For example, if the translational speed of subscriber equipment is very fast,80 Resource Block are allocated to subscriber equipment, if 80 Resource Block divide and be over,40 Resource Block are divided into subscriber equipment, and the rest may be inferred. Base station obtains distributes to subscriber equipmentDetection reference signal bandwidth, obtain required measurement according to detection reference signal bandwidth calculation and survey ginsengExamine the number of times of signal. Wherein, measuring the number of times of detection reference signal can draw by emulation experiment,For example, in the time distributing to the bandwidth of subscriber equipment and be 80RB, measure the number of times of detection reference signalIt is 2 times; In the time distributing to the bandwidth of subscriber equipment and be 4RB, measure the number of times of detection reference signalIt is 32 times.
S504: the detectable signal cycle is determined in base station.
Can only carry out one-shot measurement detection reference signal in each detectable signal cycle, so, knowingRoad detection reference signal is measured duration and is measured after the number of times of detection reference signal, determines and surveys letterNumber cycle. Making detection reference signal measure duration is S, and the number of times of detection reference signal is N,Detectable signal cycle T is met and be greater than the first thresholding and be less than detection reference signal measurement duration SWith measure detection reference signal times N ratio, equal detection reference signal measure duration S withMeasure the ratio N of number of times of detection reference signal, or, be greater than detection reference signal measure duration S withMeasure detection reference signal times N ratio and be less than the second thresholding, that is, OrWherein, a is the first thresholding, in the time that the detectable signal cycle is less than a,Can not meet the effect of saving SRS resource. B is the second thresholding, in the time that the detectable signal cycle is greater than b,Can there is step and lose row. Base station accordingly determine the detectable signal cycle, and make subscriber equipment according toDefinite detectable signal cycle sends SRS signal.
In communication process, if the translational speed of subscriber equipment changes, redefine distributionGive the resource of detection reference signal, to avoid waste SRS resource or cause upper step to lose row.
Consult Fig. 6, Fig. 6 is the application's sounding reference signal resource determining device one embodimentStructural representation. The sounding reference signal resource determining device of present embodiment comprises: measurement module610 and distribution module 620.
Measurement module 610 is for measuring the translational speed of subscriber equipment. Such as, when subscriber equipmentWhen translational speed is very fast, channel rapid fading, inclined to one side when subscriber equipment need to be adjusted quickly; Work as userWhen the translational speed of equipment is slower, channel slow fading, inclined to one side when subscriber equipment can be adjusted more slowly.So the translational speed faster subscriber equipment subscriber equipment slower than translational speed needs more SRSResource is to guarantee obtaining enough SRS sample of signal amounts before generation uplink loss. Therefore, reallySurely distribute to before the SRS resource of subscriber equipment, measurement module 610 must be measured moving of subscriber equipmentMoving speed. Measurement module 610 sends the translational speed of subscriber equipment to distribution module 620.
Distribution module 620 is for receiving the translational speed of subscriber equipment, according to the movement of subscriber equipmentSpeed is determined the detection reference signal SRS resource of distributing to subscriber equipment, wherein, surveys with reference to letterNumber resource comprises detection reference signal bandwidth and detection reference signal cycle. Such as, distribution module620 determine according to the translational speed of subscriber equipment the detection reference signal SRS that distributes to subscriber equipmentResource, for translational speed subscriber equipment faster, distribution module 620 is distributed shorter spy as far as possibleSurvey cycle reference signal and wider detection reference signal bandwidth thereof to subscriber equipment; For mobile speedSpend slower subscriber equipment, distribution module 620 distribute as far as possible the longer detection reference signal cycle andIts narrower detection reference signal bandwidth is to subscriber equipment.
Consult Fig. 7, Fig. 7 is another embodiment of the application's sounding reference signal resource determining deviceStructural representation. The sounding reference signal resource determining device of present embodiment comprises: measurement modePiece 710 and distribution module 720. Distribution module 720 comprises measures duration unit 721, measurementInferior counting unit 723 and determining unit 725.
Measurement module 710 is for measuring the translational speed of subscriber equipment. Such as, when subscriber equipmentWhen translational speed is very fast, channel rapid fading, inclined to one side when subscriber equipment need to be adjusted quickly; Work as userWhen the translational speed of equipment is slower, channel slow fading, inclined to one side when subscriber equipment can be adjusted more slowly.So the translational speed faster subscriber equipment subscriber equipment slower than translational speed needs more SRSResource is to guarantee obtaining enough SRS sample of signal amounts before generation uplink loss. Therefore, reallySurely distribute to before the SRS resource of subscriber equipment, measurement module 710 must be measured moving of subscriber equipmentMoving speed.
Measure duration unit 721 for obtain the spy of subscriber equipment according to the translational speed of subscriber equipmentSurvey reference signal and measure duration, wherein, detection reference signal is measured duration for ensureing on subscriber equipmentThe maximum duration that row is synchronous. Such as, obtaining after the translational speed of subscriber equipment, measure duration listWhen unit's 721 translational speeds according to subscriber equipment obtain the detection reference signal measurement of subscriber equipmentLong. Wherein, described detection reference signal measurement duration is ensure subscriber equipment uplink synchronous the longestTime, if base station exceed detection reference signal measure duration do not obtain yet enough SRS signalsSample size, thus to time partially adjust, can there is uplink loss. In order to realize to greatest extentSRS resource is saved on ground, can determine detection reference signal survey according to the translational speed of subscriber equipment completelyAmount duration. But, for the ease of management and saving computational process, also can moving subscriber equipmentMoving speed is divided at least two speed class, the corresponding detection reference signal of each speed classMeasure duration, guarantee that subscriber equipment is with in speed class even if this detection reference signal is measured durationWhen the fastest translational speed moves, also can there is not uplink loss. Measure duration unit 721 basesThe translational speed of subscriber equipment is determined speed class, and determines the spy of subscriber equipment according to speed classSurvey reference signal and measure duration. For example, measure duration unit 721 by the speed class of subscriber equipmentBe divided into low speed grade and high speed grade. If it is every that the translational speed of subscriber equipment is less than 30 kmsHour, be defined as low speed grade, and determine the first detection reference signal measurement duration; If userThe translational speed of equipment is more than or equal to 30 kilometer per hours, is defined as high speed grade, and determinesThe second detection reference signal is measured duration, and the first detection reference signal is measured duration and is greater than the second detectionReference signal is measured duration. Be understandable that, also speed class can be divided into three or threeIndividual above speed class, thus precision improved. Measure duration unit 721 by detection reference signalMeasuring duration sends to determining unit 725.
Measure time counting unit 723 for obtaining the detection reference signal bandwidth of distributing to subscriber equipment,Obtain the number of times of required measurement detection reference signal according to detection reference signal bandwidth calculation. Such as,Base station set in advance distribute to subscriber equipment detection reference signal bandwidth be 4 Resource Block,20 Resource Block, 40 Resource Block or 80 Resource Block etc. If the mobile speed of subscriber equipmentDegree is very fast, preferential by wider detection reference signal allocated bandwidth to subscriber equipment. For example, asThe translational speed of fruit subscriber equipment is very fast, 80 Resource Block is allocated to subscriber equipment, if80 Resource Block are divided and are over, and 40 Resource Block are divided into subscriber equipment, class according to thisPush away. Measure time counting unit 723 and obtain the detection reference signal bandwidth of distributing to subscriber equipment, according toDetection reference signal bandwidth calculation obtains the number of times of required measurement detection reference signal. Wherein, measureThe number of times of detection reference signal can draw by emulation experiment, for example, and when distributing to subscriber equipmentBandwidth while being 80RB, the number of times of measuring detection reference signal is 2 times; Establish when distributing to userWhen standby bandwidth is 4RB, the number of times of measuring detection reference signal is 32 times. Measure time counting unit723 send the number of times of measuring detection reference signal to determining unit 725.
Determining unit 725 is measured duration and measures and survey with reference to letter for receiving detection reference signalNumber number of times, make the detection reference signal cycle be greater than the first thresholding and be less than detection reference signal surveyAmount duration with measure detection reference signal number of times ratio, equal detection reference signal measure durationWith the ratio of number of times of measuring detection reference signal, or, be greater than detection reference signal measure duration withMeasure detection reference signal number of times ratio and be less than the second thresholding so that subscriber equipment by surveyCycle reference signal sends detection reference signal. Such as, can only carry out in each detectable signal cycleOne-shot measurement detection reference signal, so, knowing that detection reference signal is measured duration and measurement is visitedSurvey after the number of times of reference signal, determining unit 725 is determined the detectable signal cycle. Order is surveyed with reference to letterNumber measuring duration is S, and the number of times of detection reference signal is N, makes detectable signal cycle T fullFoot is greater than the first thresholding and is less than detection reference signal to be measured duration S and measures detection reference signalThe ratio of times N, equal detection reference signal measure duration S with measure detection reference signal timeThe ratio N of number, or, be greater than detection reference signal and measure duration S and measure detection reference signalThe ratio of times N and be less than the second thresholding, that is, OrItsIn, a is the first thresholding, in the time that the detectable signal cycle is less than a, can not meets and save SRS resourceEffect. B is the second thresholding, in the time that the detectable signal cycle is greater than b, step can occurs and lose row.Base station is determined the detectable signal cycle accordingly, and makes subscriber equipment according to definite detectable signal cycleSend SRS signal.
In communication process, if the translational speed of subscriber equipment changes, distribution module 720Redefine the resource of distributing to detection reference signal, to avoid waste SRS resource or cause upper stepLose row.
Consult Fig. 8, Fig. 8 is the application's sounding reference signal resource determining device embodiment againStructural representation. The sounding reference signal resource determining device of present embodiment comprises: receiver810, processor 820 and transmitter 830. Wherein, processor 820 couples respectively receiver810 and transmitter 830.
Receiver 810 and transmitter 830 are for communicating with subscriber equipment.
Processor 820 is for measuring the translational speed of subscriber equipment, according to the mobile speed of subscriber equipmentDegree obtains the detection reference signal of subscriber equipment and measures duration, obtains the detection of distributing to subscriber equipmentReference signal bandwidth, obtains required measurement detection reference signal according to detection reference signal bandwidth calculationNumber of times, according to detection reference signal measure duration and measure detection reference signal number of times determineIn the detection reference signal cycle, make the detection reference signal cycle be greater than the first thresholding and be less than to survey ginsengExamine signal measurement duration with measure detection reference signal number of times ratio, equal detection reference signalMeasure the ratio of the number of times of duration and measurement detection reference signal, or, be greater than detection reference signal and surveyAmount duration with measure detection reference signal number of times ratio and be less than the second thresholding so that user establishesThe standby detection reference signal cycle transmission detection reference signal of pressing. Such as, when the mobile speed of subscriber equipmentSpend when very fast, channel rapid fading, inclined to one side when subscriber equipment need to be adjusted quickly; When subscriber equipmentWhen translational speed is slower, channel slow fading, inclined to one side when subscriber equipment can be adjusted more slowly. So moveThe subscriber equipment of the moving speed subscriber equipment slower than translational speed needs more SRS resourceTo guarantee obtaining enough SRS sample of signal amounts before generation uplink loss. Therefore, at definite pointBefore the SRS resource of provisioned user equipment, processor 820 must be measured the translational speed of subscriber equipment.Obtaining after the translational speed of subscriber equipment, processor 820 obtains according to the translational speed of subscriber equipmentThe detection reference signal that obtains subscriber equipment is measured duration. Wherein, when described detection reference signal is measuredLong for ensureing the maximum duration of subscriber equipment uplink synchronous, if base station is exceeding detection reference signalMeasure duration do not obtain yet enough SRS sample of signal amounts, thereby to time partially adjust, canThere is uplink loss. To save to greatest extent SRS resource in order realizing, can to establish according to user completelyStandby translational speed is determined detection reference signal measurement duration. But, for the ease of management and savingComputational process, also can be divided at least two speed class by the translational speed of subscriber equipment, everyThe corresponding detection reference signal of individual speed class is measured duration, even and if guarantee that subscriber equipment is with speedWhen the fastest translational speed moves in degree grade, also can there is not uplink loss. 820 of processorsTranslational speed according to subscriber equipment determines speed class, and determines subscriber equipment according to speed classDetection reference signal is measured duration. For example, processor 820 is divided the speed class of subscriber equipmentFor low speed grade and high speed grade. If the translational speed of subscriber equipment is less than 30 kilometer per hours,Be defined as low speed grade, and determine the first detection reference signal measurement duration; If subscriber equipmentTranslational speed is more than or equal to 30 kilometer per hours, is defined as high speed grade, and determines that second visitsSurvey reference signal and measure duration, the first detection reference signal is measured duration and is greater than the second detection with reference to letterNumber measure duration. Be understandable that, also speed class can be divided into more than three or threeSpeed class, thereby improve precision. Base station has set in advance the detection ginseng of distributing to subscriber equipmentWhat examine signal bandwidth is 4 Resource Block, 20 Resource Block, 40 Resource Block or 80 Resource BlockEtc.. If the translational speed of subscriber equipment is very fast, preferential by wider detection reference signal bandThe wide subscriber equipment of distributing to. For example,, if the translational speed of subscriber equipment is very fast, by 80Resource Block is allocated to subscriber equipment, if 80 Resource Block divide and be over, by 40 moneysSource piece is divided into subscriber equipment, and the rest may be inferred. Processor 820 obtains the spy of distributing to subscriber equipmentSurvey reference signal bandwidth, obtain required measurement according to detection reference signal bandwidth calculation and survey with reference to letterNumber number of times. Wherein, can draw by emulation experiment, for example, when distributing to subscriber equipmentWhen bandwidth is 80RB, the number of times of measuring detection reference signal is 2 times; When distributing to subscriber equipmentBandwidth while being 4RB, the number of times of measuring detection reference signal is 32 times. At each detectable signalCycle can only be carried out one-shot measurement detection reference signal, so, knowing detection reference signal measurementAfter the number of times of duration and measurement detection reference signal, processor 820 is determined the detectable signal cycle. OrderIt is S that detection reference signal is measured duration, and the number of times of detection reference signal is N, makes to survey letterNumber cycle T meets to be greater than the first thresholding and to be less than detection reference signal to be measured duration S and surveys with measuringThe ratio of the times N of reference signal, equal detection reference signal and measure duration S and survey ginseng with measuringExamine the ratio N of the number of times of signal, or, be greater than detection reference signal and measure duration S and measure detectionThe ratio of the times N of reference signal and be less than the second thresholding, that is, OrWherein, a is the first thresholding, in the time that the detectable signal cycle is less than a, can not meet jointEconomize the effect of SRS resource. B is the second thresholding, in the time that the detectable signal cycle is greater than b, can send outIn life, step is lost row. Base station accordingly determine the detectable signal cycle, and make subscriber equipment according to determineThe detectable signal cycle sends SRS signal.
In communication process, if the translational speed of subscriber equipment changes, processor 820 weightsNew determine the resource of distributing to detection reference signal, to avoid waste SRS resource or cause upper step to be lostOK.
Based on above-mentioned base station, the application has also proposed a kind of sounding reference signal resource and has determined systemSystem, comprises that base station and user arrange, and between base station and subscriber equipment, can communicate, and specifically pleaseConsult Fig. 1 and associated description, it is no longer repeated herein.
Because the translational speed of subscriber equipment is when different, the required detection reference signal of subscriber equipmentResource difference. In the time that the translational speed of subscriber equipment is very fast, channel rapid fading, subscriber equipment needsInclined to one side while adjustment quickly, so need more SRS resource; When the translational speed of subscriber equipmentWhen slow, channel slow fading, inclined to one side when subscriber equipment can be adjusted more slowly, so need less SRSResource. So such scheme is determined and is distributed to detection with reference to letter according to the translational speed of subscriber equipmentNumber resource, can effectively save SRS resource, improve the quantity that can be accessed by user in community.
In the several embodiments that provide in the application, should be understood that, disclosed system,Apparatus and method, can realize by another way. For example, device described above is implementedMode is only that schematically for example, the division of described module or unit, is only a kind of logicFunction is divided, and when actual realization, can have other dividing mode, and for example multiple unit or assembly canWith in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, shown or discussed coupling each other or direct-coupling or communication connection can beBy some interfaces, INDIRECT COUPLING or the communication connection of device or unit, can be electrically, machineryOr other form.
The described unit as separating component explanation can be or can not be also physically to separate, the parts that show as unit can be or can not be also physical locations, can be positioned atA place, or also can be distributed on multiple NEs. Can select according to the actual needsSelect some or all of unit wherein and realize the object of present embodiment scheme.
In addition, the each functional unit in each embodiment of the application can be integrated in a processingIn unit, can be also that the independent physics of unit exists, also can two or more unitBe integrated in a unit. Above-mentioned integrated unit both can adopt the form of hardware to realize, and also couldRealize with the form that adopts SFU software functional unit.
If described integrated unit is realized also as independently producing using the form of SFU software functional unitWhen product are sold or use, can be stored in a computer read/write memory medium. Based on like thisUnderstanding, the part that the application's technical scheme contributes to prior art in essence in other words orThe all or part of of this technical scheme of person can embody with the form of software product, this computerSoftware product is stored in a storage medium, comprises that some instructions are in order to establish a computerStandby (can be personal computer, server, or the network equipment etc.) or processor (processor)The all or part of step of method described in each embodiment of execution the application. And aforesaid storage is situated betweenMatter comprises: USB flash disk, portable hard drive, read-only storage (ROM, Read-OnlyMemory),Random access memory (RAM, RandomAccessMemory), magnetic disc or CD etc. are eachMedium that kind can be program code stored.
Claims (13)
1. sounding reference signal resource is determined a method, it is characterized in that, comprises the steps:
The translational speed of base station measurement subscriber equipment;
Described base station is determined and is distributed to described subscriber equipment according to the translational speed of described subscriber equipmentDetection reference signal SRS resource, wherein, sounding reference signal resource comprises detection reference signalBandwidth and detection reference signal cycle; For translational speed subscriber equipment faster, described base stationDistribute shorter detection reference signal cycle and wider detection reference signal bandwidth to subscriber equipment;For the slower subscriber equipment of translational speed, the detection reference signal cycle that described base station assigns is grownAnd narrower detection reference signal bandwidth is to subscriber equipment.
2. method according to claim 1, is characterized in that, describedly establishes according to described userStandby translational speed determines that the step of the resource of distributing to detection reference signal comprises:
Obtain the detection reference signal of described subscriber equipment according to the translational speed of described subscriber equipmentMeasure duration, wherein, it is up for ensureing described subscriber equipment that described detection reference signal is measured durationSynchronous maximum duration;
Obtain the detection reference signal bandwidth of distributing to described subscriber equipment, according to described detection referenceSignal bandwidth calculates the number of times of required measurement detection reference signal;
Make the detection reference signal cycle be greater than the first thresholding and be less than described detection reference signal to surveyThe ratio of the number of times of amount duration and described measurement detection reference signal, equal described detection reference signalMeasure the ratio of the number of times of duration and described measurement detection reference signal, or, be greater than described detection ginsengExamine signal measurement duration and described measurement detection reference signal number of times ratio and be less than secondLimit, so that described subscriber equipment sends described detection with reference to letter by the described detection reference signal cycleNumber.
3. method according to claim 2, is characterized in that, describedly establishes according to described userThe step that standby translational speed obtains the detection reference signal measurement duration of described subscriber equipment comprises:
Determine speed class according to the translational speed of described subscriber equipment, and according to described speed classDetermine the detection reference signal measurement duration of described subscriber equipment.
4. method according to claim 3, is characterized in that, described speed class comprises lowSpeed grade and high speed grade.
5. method according to claim 4, is characterized in that, described in described low speed grade isThe translational speed of subscriber equipment is less than 30 kilometer per hours; Described high speed grade is that described user establishesStandby translational speed is more than or equal to 30 kilometer per hours.
6. method according to claim 1, is characterized in that, described method also comprises:
In the time that the translational speed of subscriber equipment changes, redefine and distribute to detection reference signalResource.
7. a sounding reference signal resource determining device, is characterized in that, described detection is with reference to letterNumber resource determining device is base station, comprising: measurement module and distribution module,
Described measurement module is for measuring the translational speed of subscriber equipment, described in described measurement module is incited somebody to actionThe translational speed of subscriber equipment sends to described distribution module;
Described distribution module, for receiving the translational speed of described subscriber equipment, is established according to described userStandby translational speed is determined the sounding reference signal resource of distributing to described subscriber equipment, wherein, visitsSurvey reference signal resource and comprise detection reference signal bandwidth and detection reference signal cycle; For movingThe subscriber equipment of moving speed, the detection reference signal cycle that described module assigns is shorter andWider detection reference signal bandwidth is to subscriber equipment; For the slower subscriber equipment of translational speed,The detection reference signal cycle that described module assigns is grown and narrower detection reference signal bandThe wide subscriber equipment of giving.
8. device according to claim 7, is characterized in that, described distribution module comprises:Measure duration unit, measure time counting unit and determining unit,
Described measurement duration unit is for obtaining described use according to the translational speed of described subscriber equipmentThe detection reference signal of family equipment is measured duration, and wherein, described detection reference signal is measured duration and isEnsure the maximum duration of described subscriber equipment uplink synchronous, described measurement duration unit is by described detectionReference signal is measured duration and is sent to described determining unit;
Described measurement time counting unit is for obtaining the detection reference signal of distributing to described subscriber equipmentBandwidth, obtains the inferior of required measurement detection reference signal according to described detection reference signal bandwidth calculationNumber, described measurement time counting unit by the number of times of described measurement detection reference signal to described determining unitSend;
Described determining unit is used for receiving described detection reference signal and measures duration and described measurementThe number of times of detection reference signal, make the detection reference signal cycle be greater than the first thresholding and be less than described inDetection reference signal measure the number of times of duration and described measurement detection reference signal ratio, equal instituteState detection reference signal and measure the ratio of the number of times of duration and described measurement detection reference signal, or,Be greater than described detection reference signal and measure the ratio of duration and the number of times of described measurement detection reference signalValue and be less than the second thresholding, so that described subscriber equipment sends institute by the described detection reference signal cycleState detection reference signal.
9. device according to claim 8, is characterized in that, described measurement duration unit alsoFor receiving the translational speed of described subscriber equipment, determine according to the translational speed of described subscriber equipmentSpeed class, and according to described speed class determine described subscriber equipment detection reference signal measureDuration.
10. device according to claim 9, is characterized in that, described speed class comprises lowSpeed grade and high speed grade.
11. devices according to claim 10, is characterized in that, described low speed grade is instituteThe translational speed of stating subscriber equipment is less than 30 kilometer per hours; Described high speed grade is described userThe translational speed of equipment is more than or equal to 30 kilometer per hours.
12. devices according to claim 7, is characterized in that, described distribution module also forIn the time that the translational speed of subscriber equipment changes, redefine the money of distributing to detection reference signalSource.
13. 1 kinds of sounding reference signal resources are determined system, it is characterized in that, comprise base station and userEquipment, can communicate between described base station and subscriber equipment, and wherein, described base station is provided withDevice as described in claim as arbitrary in claim 7-12.
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| WO2017193314A1 (en) * | 2016-05-11 | 2017-11-16 | 华为技术有限公司 | Reference signal configuration method, device, and base station in mobile communications |
| CN106211246A (en) * | 2016-06-17 | 2016-12-07 | 深圳市金立通信设备有限公司 | A kind of reduce the method for channel-sounding signal transmission times, base station and terminal |
| CN107566101A (en) * | 2016-06-30 | 2018-01-09 | 中兴通讯股份有限公司 | A kind of collocation method, device and the base station of detection reference signal SRS resource |
| CN108667580B (en) | 2017-03-31 | 2021-11-19 | 华为技术有限公司 | Reference signal sending method, terminal equipment and access network equipment |
| CN108882260A (en) * | 2017-05-08 | 2018-11-23 | 索尼公司 | Electronic equipment and method in wireless communication system |
| CN109474399B (en) * | 2017-09-08 | 2021-12-31 | 中兴通讯股份有限公司 | Method, device and base station for configuring sounding reference signal resources |
| WO2020041979A1 (en) | 2018-08-28 | 2020-03-05 | 北京小米移动软件有限公司 | Method and device for transmitting reference signal |
| CN111224762B (en) * | 2018-11-26 | 2021-06-11 | 大唐移动通信设备有限公司 | Sounding reference signal resource allocation method and device |
| CN110213828B (en) * | 2019-05-29 | 2022-02-01 | 维沃移动通信有限公司 | SRS sending method and mobile terminal |
| US20220255616A1 (en) * | 2019-07-05 | 2022-08-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and Network Device for Signal Resource Configuration |
| CN114520713B (en) * | 2020-11-20 | 2024-03-01 | 上海华为技术有限公司 | Channel detection period configuration method, base station, equipment and medium |
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