A kind of method and apparatus calculating secondary cell group measurement intervalTechnical field
The present invention relates to field of mobile communication, espespecially a kind of calculating secondary cell group (SCG) measurement intervalMethod and apparatus.
Background technology
3GPP (3rd Generation Partnership Project, third generation partner program) is as completeOne of ball most important mobile communication standard tissue, and the LTE of formulation (Long Term Evolution, for a long timeEvolution) the current wide-band mobile communication standard having become whole world main flow.LTE mono-aspect inherit 2G,Classical technology in 3G cellular mobile communication, the wireless communication technology on the other hand introducing again forefront is dashed forwardBroken, main classical technology includes multi-antenna transmission, Turbo letter in 3G (Third Generation) MoblieRoad coding, link circuit self-adapting, HARQ (Hybrid Automatic Repeat Request, mixing weight automaticallyPass request) etc., improve systematic function further.Along with LTE widespread deployment in the world, LTEStandard process also constantly advancing, current LTE standard has evolved to the R13 stage.
Due to the fast development of mobile Internet, mobile subscriber constantly increases for power system capacity demand, andAnd presenting exponential increase trend, existing power system capacity has been insufficient for ever-increasing business demand.Occurring in hot spot region and indoor in view of major part business, therefore Small cell (small-cell) becomes undoubtedlyFor solving the important way of this problem.In Jan-Sept, 2013,3GPP was respectively to Small cell physical layer and heightLayer registration study.Small cell physical layer research mainly includes 256QAM (Quadrature AmplitudeModulation, quadrature amplitude modulation) high order modulation, the expense that reduces, across subframe scheduling, small-cell switchWith small-cell discovery, air interface synchronization etc.；Small cell high level research contents mainly includes with chain of command and useFace, family is separated into the macro base station on basis and the dual link technology of micro-base station.Small cell dual link is as importantSmall cell high level enhancement techniques so that terminal can keep simultaneously with MeNB (macro base station), SeNBThe connection of (micro-base station), is effectively improved single user handling capacity, optimizes mobility performance simultaneously, andReduce the signaling consumption that switching produces.
Small cell dual link scene can be divided into synchronization dual link and asynchronous dual link.At Small cellSynchronize in dual link scene, MCG (Master Cell Group, main plot group) measurement interval(measurement gap) and SCG (Secondary Cell Group, secondary cell group) measurementGap fixes relative to position, and therefore terminal can be obtained by MCG measurement gap configuration informationSCG measurement gap configuration information.In Small cell asynchronous dual link scene, MCGMeasurement gap and SCG measurement gap does not fixes relative to position, and therefore terminal needs rootCalculate obtain SCG measurement gap according to MCG measurement gap configuration information and auxiliary informationConfiguration information, but currently without a kind of proper mode.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method and apparatus calculating SCG measurement interval,In Small cell asynchronous dual link scene, terminal can know SCG measurement interval.
For solving above-mentioned technical problem, the invention provides a kind of secondary cell group SCG measurement interval of calculatingMethod, including:
Terminal receives the main plot group MCG measurement interval configuration information that issues of network side, and MCG withThe system time difference information of SCG；
Described terminal is according to the configuration information of described MCG measurement interval and the system of MCG Yu SCGTime difference information, is calculated SCG measurement interval configuration information.
Further, described MCG measurement interval configuration information includes following information: MCG measurement intervalThe frame number of place radio frames, the subframe numbers that MCG measurement interval starts, the length of MCG measurement interval withAnd the cycle of measurement.
Further, the system time of described MCG with SCG is poor is: frame number is identical and time intervalTime difference between near SCG radio frames and MCG radio frames.
Further, described terminal according to the configuration information of described MCG measurement interval and MCG withThe system time difference information of SCG, is calculated SCG measurement interval configuration information, including:
Described terminal starts according to frame number and the MCG measurement interval of MCG measurement interval place radio framesSubframe numbers, calculate obtain MCG measurement interval measurement sart point in time T1；
Described terminal, according to the system time difference information of described T1 and MCG Yu SCG, calculates and obtainsMeasurement sart point in time T2 of SCG measurement interval；
Described terminal calculate according to described T2 obtain SCG measurement interval place radio frames frame number andThe subframe numbers that SCG measurement interval starts；
Described terminal, according to the length of MCG measurement interval and the cycle of measurement, determines SCG measurement intervalLength and measure the cycle.
Further, described terminal is according to the configuration information of MCG measurement interval and MCG and SCGSystem time difference information, be calculated SCG measurement interval configuration information, including:
Measurement sart point in time T1 of described terminal employing following formula calculating acquisition MCG measurement interval:T1=SFN_M*n+SubOff_M, wherein, SFN_M is the frame of MCG measurement interval place radio framesNumber, SubOff_M is the subframe numbers that MCG measurement interval starts, and n is the subframe that a radio frames comprisesNumber；
Measurement sart point in time T2 of described terminal employing following formula calculating acquisition SCG measurement interval:T2=T1-TD, wherein, TD is that the system time of MCG and SCG is poor；
Described terminal determines that the frame number of SCG measurement interval place radio frames meets following formula condition:SFN_S%t=floor (T2/n) %t, wherein, SFN_S is the frame number of SCG measurement interval place radio frames,Function floor (x) is not more than the maximum integer of x for returning, and t is the radio frames comprised in a measurement cycle；
Described terminal calculates in the following ways and obtains the subframe numbers SubOff_S that SCG measurement interval starts:Judge the relation of the start time position of MCG measurement interval and the start time position of SCG measurement interval,If the start time position of MCG measurement interval is before the start time position of SCG measurement interval,(mod (T2, n)), function ceil (x) is used for returning then to use following formula to calculate SubOff_S:SubOff_S=ceilSmallest positive integral value not less than x；If between the start time position of MCG measurement interval and SCG measureEvery start time position identical, or after the start time position of SCG measurement interval, then useFollowing formula calculates SubOff_S:SubOff_S=floor, and (mod (T2, n)), function floor (x) is used for returning not quiteMaximum integer in x；
Described terminal determines that the length of SCG measurement interval is identical with the length of MCG measurement interval, determinesIt is identical with the MCG measurement cycle that SCG measures the cycle.
Further, described terminal uses following formula to judge start time position and the SCG of MCG measurement intervalThe relation of the start time position of measurement interval: round (mod (T2,1)), wherein, function round (x) is usedIn the integer value that rounds up of return x, if round (x) result is 1, show MCG measurement intervalStart time position is before the start time position of SCG measurement interval, if round (x) result is 0,Show the start time position of MCG measurement interval after the start time position of SCG measurement interval,Or it is identical with the start time position of SCG measurement interval.
Further, the system time of described MCG with SCG is poor is: during with a predetermined SCG radio framesBetween be spaced between the nearest MCG radio frames meeting predetermined condition and described predetermined SCG radio frames timeBetween poor.
Further, described predetermined SCG radio frames is first radio frames of SCG transmission；
Described predetermined condition includes: SFN_M%t=0, wherein SFN_M be MCG measurement interval place withoutThe frame number of line frame, t is the radio frames comprised in a measurement cycle.
Further, described terminal is according to the configuration information of MCG measurement interval and MCG and SCGSystem time difference information, be calculated SCG measurement interval configuration information, including:
Described terminal starts according to the frame number of MCG measurement interval place radio frames, MCG measurement intervalThe system time difference information of subframe numbers and MCG Yu SCG, calculates and obtains the mapping of MCG measurement intervalTime point T3 to SCG measurement interval；
Described terminal calculate according to described T3 obtain SCG measurement interval place radio frames frame number andThe subframe numbers that SCG measurement interval starts；
Described terminal, according to the length of MCG measurement interval and the cycle of measurement, determines SCG measurement intervalLength and measure the cycle.
Further, described terminal is according to the configuration information of MCG measurement interval and MCG and SCGSystem time difference information be calculated SCG measurement interval configuration information, including:
Described terminal uses following formula to calculate acquisition MCG measurement interval and is mapped to the time of SCG measurement intervalPoint T3:T3=SFN_M*n+SubOff_M+TD, wherein, SFN_M is MCG measurement interval placeThe frame number of radio frames, SubOff_M is the subframe numbers that MCG measurement interval starts, and n is a radio framesThe number of sub frames comprised, TD is that the system time of MCG and SCG is poor；
Described terminal determines that the frame number of SCG measurement interval place radio frames meets following formula condition:SFN_S%t=floor (T3/n) %t, wherein, SFN_S is the frame number of SCG measurement interval place radio frames,Function floor (x) is not more than the maximum integer of x for returning, and t is the radio frames comprised in a measurement cycle；
Described terminal calculates in the following ways and obtains the subframe numbers SubOff_S that SCG measurement interval starts:Judge the relation of the start time position of MCG measurement interval and the start time position of SCG measurement interval,If the start time position of MCG measurement interval is before the start time position of SCG measurement interval,(mod (T3, n)), function ceil (x) is used for returning then to use following formula to calculate SubOff_S:SubOff_S=ceilSmallest positive integral value not less than x；If between the start time position of MCG measurement interval and SCG measureEvery start time position identical, or after the start time position of SCG measurement interval, then useFollowing formula calculates SubOff_S:SubOff_S=floor, and (mod (T3, n)), function floor (x) is used for returning not quiteMaximum integer in x；
Described terminal determines that the length of SCG measurement interval is identical with the length of MCG measurement interval, determinesIt is identical with the MCG measurement cycle that SCG measures the cycle.
Further, described terminal uses following formula to judge start time position and the SCG of MCG measurement intervalThe relation of the start time position of measurement interval: round (mod (T3,1)), wherein, function round (x) is usedIn the integer value that rounds up of return x, if round (x) result is 1, show MCG measurement intervalStart time position is before the start time position of SCG measurement interval, if round (x) result is 0,Show the start time position of MCG measurement interval after the start time position of SCG measurement interval,Or it is identical with the start time position of SCG measurement interval.
For solving above-mentioned technical problem, present invention also offers a kind of calculating secondary cell group SCG measurement intervalDevice, including receiver module and computing module, wherein:
Described receiver module, for receiving the main plot group MCG measurement interval configuration letter that network side issuesBreath, and the system time difference information of MCG Yu SCG；
Described computing module, for according to the configuration information of described MCG measurement interval and MCG withThe system time difference information of SCG, is calculated SCG measurement interval configuration information.
Further, described computing module is according to the configuration information of described MCG measurement interval and MCGThe poor information with the system time of SCG, is calculated SCG measurement interval configuration information, including:
Described computing module is according to the frame number of MCG measurement interval place radio frames and MCG measurement intervalThe subframe numbers started, calculates measurement sart point in time T1 obtaining MCG measurement interval；
Described computing module is according to the system time difference information of described T1 and MCG Yu SCG, and calculating obtainsObtain measurement sart point in time T2 of SCG measurement interval；
Described computing module calculate according to described T2 the frame number obtaining SCG measurement interval place radio frames withAnd the subframe numbers that SCG measurement interval starts；
Described computing module, according to the length of MCG measurement interval and the cycle of measurement, determines that SCG measuresThe length at interval and the cycle of measurement.
Further, described computing module according to the configuration information of MCG measurement interval and MCG withThe system time difference information of SCG, is calculated SCG measurement interval configuration information, including:
Measurement sart point in time T1 of described computing module employing following formula calculating acquisition MCG measurement interval:T1=SFN_M*n+SubOff_M, wherein, SFN_M is the frame of MCG measurement interval place radio framesNumber, SubOff_M is the subframe numbers that MCG measurement interval starts, and n is the subframe that a radio frames comprisesNumber；
Measurement sart point in time T2 of described computing module employing following formula calculating acquisition SCG measurement interval:T2=T1-TD, wherein, TD is that the system time of MCG and SCG is poor；
Described computing module determines that the frame number of SCG measurement interval place radio frames meets following formula condition:SFN_S%t=floor (T2/n) %t, wherein, SFN_S is the frame number of SCG measurement interval place radio frames,Function floor (x) is not more than the maximum integer of x for returning, and t is the radio frames comprised in a measurement cycle；
Described computing module calculates in the following ways and obtains the subframe numbers that SCG measurement interval startsSubOff_S: judge the start time position of MCG measurement interval and the initial time of SCG measurement intervalThe relation of position, if the start time position of MCG measurement interval is when SCG measurement interval initialBetween before position, then use following formula to calculate SubOff_S:SubOff_S=ceil (mod (T2, n)), function ceil (x)For returning the smallest positive integral value not less than x；If the start time position of MCG measurement interval and SCGThe start time position of measurement interval is identical, or after the start time position of SCG measurement interval,Following formula is then used to calculate SubOff_S:SubOff_S=floor (mod (T2, n))；
Described computing module determines that the length of SCG measurement interval is identical with the length of MCG measurement interval,Determine that SCG measures the cycle identical with the MCG measurement cycle.
Further, described computing module use following formula judge MCG measurement interval start time position andThe relation of the start time position of SCG measurement interval: round (mod (T2,1)), wherein, function round (x)For returning the integer value that rounds up of x, if round (x) result is 1, show MCG measurement intervalStart time position before the start time position of SCG measurement interval, if round (x) result is0, show the start time position of MCG measurement interval after the start time position of SCG measurement interval,Or it is identical with the start time position of SCG measurement interval.
Further, described computing module according to the configuration information of MCG measurement interval and MCG withThe system time difference information of SCG, is calculated SCG measurement interval configuration information, including:
Described computing module is opened according to the frame number of MCG measurement interval place radio frames, MCG measurement intervalThe subframe numbers begun and the system time difference information of MCG Yu SCG, calculate and obtain MCG measurement intervalIt is mapped to the time point T3 of SCG measurement interval；
Described computing module calculate according to described T3 the frame number obtaining SCG measurement interval place radio frames withAnd the subframe numbers that SCG measurement interval starts；
Described computing module, according to the length of MCG measurement interval and the cycle of measurement, determines that SCG measuresThe length at interval and the cycle of measurement.
Further, described computing module according to the configuration information of MCG measurement interval and MCG withThe system time difference information of SCG, is calculated SCG measurement interval configuration information, including:
Described computing module uses following formula to calculate acquisition MCG measurement interval and is mapped to SCG measurement intervalTime point T3:T3=SFN_M*n+SubOff_M+TD, wherein, SFN_M is MCG measurement intervalThe frame number of place radio frames, SubOff_M is the subframe numbers that MCG measurement interval starts, and n is a nothingThe number of sub frames that line frame comprises, TD is that the system time of MCG and SCG is poor；
Described computing module determines that the frame number of SCG measurement interval place radio frames meets following formula condition:SFN_S%t=floor (T3/n) %t, wherein, SFN_S is the frame number of SCG measurement interval place radio frames,Function floor (x) is not more than the maximum integer of x for returning, and t is the radio frames comprised in a measurement cycle；
Described computing module calculates in the following ways and obtains the subframe numbers that SCG measurement interval startsSubOff_S: judge the start time position of MCG measurement interval and the initial time of SCG measurement intervalThe relation of position, if the start time position of MCG measurement interval is when SCG measurement interval initialBetween before position, then use following formula to calculate SubOff_S:SubOff_S=ceil (mod (T3, n)), function ceil (x)For returning the smallest positive integral value not less than x；If the start time position of MCG measurement interval and SCGThe start time position of measurement interval is identical, or after the start time position of SCG measurement interval,(mod (T3, n)), function floor (x) is used for returning then to use following formula to calculate SubOff_S:SubOff_S=floorReturn the maximum integer being not more than x；
Described computing module determines that the length of SCG measurement interval is identical with the length of MCG measurement interval,Determine that SCG measures the cycle identical with the MCG measurement cycle.
Further, described computing module use following formula judge MCG measurement interval start time position andThe relation of the start time position of SCG measurement interval: round (mod (T3,1)), wherein, function round (x)For returning the integer value that rounds up of x, if round (x) result is 1, show MCG measurement intervalStart time position before the start time position of SCG measurement interval, if round (x) result is0, show the start time position of MCG measurement interval after the start time position of SCG measurement interval,Or it is identical with the start time position of SCG measurement interval.
The terminal based on network assistance that the embodiment of the present invention provides calculates SCG measurement gap sideMethod, under asynchronous dual link scene, SCG measurement gap is relative to MCG measurement gapWhen rocking, network is by the system between MCG measurement gap configuration information and MCG and SCGThe auxiliary information such as time difference tell terminal, and terminal is calculated by information above and obtains SCG measurementGap configuration information.Owing to network side MCG and SCG system time difference are relatively fixed, therefore network is usedThe expense poor in notice MCG with SCG system time is the most relatively small, effectively saves network overhead；Terminal can obtain, by network-assist information, the SCG measurement gap configuration information determined simultaneously,Power consumption of terminal can be saved, simplify terminal SCG measurement gap and measure operation.
Other features and advantages of the present invention will illustrate in the following description, and, partly from froming the perspective ofBright book becomes apparent, or understands by implementing the present invention.The purpose of the present invention is excellent with otherPoint can be realized by structure specifically noted in description, claims and accompanying drawing and be obtained.
Accompanying drawing explanation
Accompanying drawing is used for providing being further appreciated by technical solution of the present invention, and constitutes one of descriptionPoint, it is used for explaining technical scheme together with embodiments herein, is not intended that the present inventionThe restriction of technical scheme.
Fig. 1 is embodiment of the present invention calculating based on network assistance SCG measurement interval configuration information flow processFigure；
Fig. 2 is the device of embodiment of the present invention calculating based on network assistance SCG measurement interval configuration informationStructural representation；
Fig. 3 is MCG measurement interval and the SCG interval time of measurement relation schematic diagram of application example 1；
Fig. 4 is MCG measurement interval and the SCG interval time of measurement relation schematic diagram of application example 2；
Fig. 5 is MCG measurement interval and the SCG interval time of measurement relation schematic diagram of application example 3；
Fig. 6 is MCG measurement interval and the SCG interval time of measurement relation schematic diagram of application example 4；
Fig. 7 is MCG measurement interval and the SCG interval time of measurement relation schematic diagram of application example 5；
Fig. 8 is MCG measurement interval and the SCG interval time of measurement relation schematic diagram of application example 6.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawingEmbodiments of the invention are described in detail.It should be noted that in the case of not conflicting, this ShenEmbodiment in please and the feature in embodiment can mutual combination in any.
Can be at the computer of such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawingSystem performs.And, although show logical order in flow charts, but in some cases,Can be to be different from the step shown or described by order execution herein.
Embodiment 1
Present embodiments provide a kind of terminal based on network assistance calculating SCG measurement gap to joinPut method, as it is shown in figure 1, comprise the following steps:
Step 110, terminal receive the MCG measurement interval configuration information that issues of network side and MCG withSCG system time difference information；
Network side such as base station is by OAM (Operation Administration and Maintenance, behaviourManage and safeguard) or additive method obtain MCG and SCG system time poor, send it toTerminal.
Described MCG measurement interval configuration information includes following information: MCG measurement interval place radio framesSystem Frame Number, the subframe numbers that MCG measurement interval starts, the length of MCG measurement interval and measurementCycle.
The system time difference of described MCG Yu SCG is absolute time difference or is that relative time is poor, describedAbsolute time difference refers to SCG radio frames and the MCG radio frames that System Frame Number is identical and time interval is nearestBetween time difference；Described relative time difference refers to and a predetermined SCG radio-frame time is spaced nearest expiringTime difference between MCG radio frames and this predetermined SCG radio frames of foot predetermined condition.Preferably, instituteState first radio frames that predetermined SCG radio frames is SCG transmission；Described predetermined condition includes:SFN_M%t=0, wherein SFN_M is the frame number of MCG measurement interval place radio frames, and t is a measurementThe radio frames comprised in cycle.Have a lot owing to meeting the predetermined condition i.e. radio frames of SFN_M%t=0,It is, thus, sought for meet this predetermined condition and and SCG transmission first radio-frame time intervalClose MCG radio frames, between first radio frames of this MCG radio frames and described SCG transmissionTime difference be that relative time is poor.
Step 120, terminal is according to the configuration information of MCG measurement interval and described MCG Yu SCG systemSystem time difference information, calculates SCG measurement interval configuration information.
Scene one, the system time difference of MCG Yu SCG is that absolute time is poor, then terminal uses following stepSuddenly SCG measurement interval configuration information is calculated:
1) son started according to frame number and the MCG measurement interval of MCG measurement interval place radio framesFrame number, calculates measurement sart point in time T1 obtaining MCG measurement interval；
Alternatively, measurement sart point in time T1 of employing following formula calculating acquisition MCG measurement interval:T1=SFN_M*n+SubOff_M, wherein, SFN_M is the frame of MCG measurement interval place radio framesNumber, SubOff_M is the subframe numbers that MCG measurement interval starts, and n is the subframe that a radio frames comprisesNumber；
2) according to the system time difference information of described T1 and MCG Yu SCG, calculate and obtain SCG surveyMeasurement sart point in time T2 at amount interval；
Alternatively, measurement sart point in time T2 of employing following formula calculating acquisition SCG measurement interval:T2=T1-TD, wherein, TD is that the system time of MCG and SCG is poor；
3) frame number and the SCG survey of acquisition SCG measurement interval place radio frames is calculated according to described T2The subframe numbers that amount interval starts；
Alternatively, calculate and determine that the frame number of SCG measurement interval place radio frames meets following formula condition:SFN_S%t=floor (T2/n) %t, wherein, SFN_S is the frame number of SCG measurement interval place radio frames,Function floor (x) is not more than the maximum integer of x for returning, and t is the radio frames comprised in a measurement cycle；
Calculate in the following ways and obtain the subframe numbers that SCG measurement interval starts: between judging that MCG measuresEvery the relation of start time position of start time position and SCG measurement interval, if MCG measuresThe start time position at interval before the start time position of SCG measurement interval, then uses following formula to calculate(mod (T2, n)), function ceil (x) is whole for returning the minimum not less than x for SubOff_S:SubOff_S=ceilNumerical value；If the start time position of MCG measurement interval and the start time position of SCG measurement intervalIdentical, or after the start time position of SCG measurement interval, then employing following formula calculating SubOff_S:SubOff_S=floor (mod (T2, n))；Preferably, when using following formula to judge MCG measurement interval initialBetween the relation of start time position of position and SCG measurement interval: round (mod (T2,1)), wherein,Function round (x), for returning the integer value that rounds up of x, if round (x) result is 1, shows MCGThe start time position of measurement interval is before the start time position of SCG measurement interval, if round (x)Result is 0, shows the start time position initial time in SCG measurement interval of MCG measurement intervalAfter position or identical with the start time position of SCG measurement interval.
4) according to length and the cycle of measurement of MCG measurement interval, the length of SCG measurement interval is determinedAnd the cycle of measurement.
Optionally it is determined that the length of SCG measurement interval is identical with the length of MCG measurement interval, determineIt is identical with the MCG measurement cycle that SCG measures the cycle.
Above-mentioned steps 4) adjustable with the execution sequence of other 3 steps.
Scene two, the system time difference of MCG Yu SCG is that relative time is poor, then terminal uses following stepSuddenly SCG measurement interval configuration information is calculated:
1) according to the frame number of MCG measurement interval place radio frames, the subframe numbers that MCG measurement interval startsAnd the system time difference information of MCG Yu SCG, calculate acquisition MCG measurement interval and be mapped to SCGThe time point T3 of measurement interval；
Alternatively, use following formula to calculate acquisition MCG measurement interval and be mapped to the time of SCG measurement intervalPoint T3:T3=SFN_M*n+SubOff_M+TD, wherein, SFN_M is MCG measurement interval placeThe frame number of radio frames, SubOff_M is the subframe numbers that MCG measurement interval starts, and n is a radio framesThe number of sub frames comprised, TD is that the system time of MCG and SCG is poor；
2) frame number and the SCG survey of acquisition SCG measurement interval place radio frames is calculated according to described T3The subframe numbers that amount interval starts；
Alternatively, calculate and determine that the frame number of SCG measurement interval place radio frames meets following formula condition:SFN_S%t=floor (T3/n) %t, wherein, SFN_S is the frame number of SCG measurement interval place radio frames,Function floor (x) is not more than the maximum integer of x for returning, and t is the radio frames comprised in a measurement cycle；
Calculate in the following ways and obtain the subframe numbers SubOff_S that SCG measurement interval starts: judge MCGThe relation of the start time position of the start time position of measurement interval and SCG measurement interval, if MCGThe start time position of measurement interval before the start time position of SCG measurement interval, then uses following formula(mod (T3, n)), function ceil (x) is for returning not less than x's to calculate SubOff_S:SubOff_S=ceilSmallest positive integral value；If during the start time position of MCG measurement interval and SCG measurement interval initialBetween position identical, or after the start time position of SCG measurement interval, then use following formula to calculateSubOff_S:SubOff_S=floor (mod (T3, n))；Preferably, between using following formula to judge that MCG measuresEvery the relation of start time position of start time position and SCG measurement interval:Round (mod (T3,1)), wherein, function round (x) is used for returning the integer value that rounds up of x, ifRound (x) result is 1, shows start time position the rising in SCG measurement interval of MCG measurement intervalBefore beginning time location, if round (x) result is 0, show the initial time position of MCG measurement intervalPut after the start time position of SCG measurement interval, or with the initial time position of SCG measurement intervalPut identical；
3) according to length and the cycle of measurement of MCG measurement interval, the length of SCG measurement interval is determinedAnd the cycle of measurement.
Preferably, determine that the length of SCG measurement interval is identical with the length of MCG measurement interval, determineIt is identical with the MCG measurement cycle that SCG measures the cycle.
Using the present embodiment method, network side is configured by less overhead notification terminal MCG measurement intervalThe system time difference information of information and MCG Yu SCG, the information that terminal is sent by network side simultaneouslyAcquisition SCG measurement interval configuration information can be calculated, save power consumption of terminal, simplify terminal SCG and measureThe measurement operation at interval.
Embodiment 2
The present embodiment describes the device of the calculating SCG measurement interval realizing above-described embodiment 1 method, such as figureShown in 2, including receiver module 201 and computing module 202, wherein:
Described receiver module 201, for receiving the main plot group MCG measurement interval configuration that network side issuesInformation, and the system time difference information of MCG Yu SCG；
Described computing module 202, for the configuration information according to described MCG measurement interval and MCGThe poor information with the system time of SCG, is calculated SCG measurement interval configuration information.
The content of described MCG measurement interval configuration information, the system time of described MCG Yu SCG is poorDefinition, and computing module 202 how to calculate acquisition SCG measurement interval configuration information see embodimentDescribed in 1, here is omitted.
Below in conjunction with application example, above-described embodiment method is described in detail.In following example, with LTEAs a example by FDD (Frequency Division Duplexing, frequency division multiplexing duplex), the measurement cycle is 40ms.
Application example 1
Step 1:
Network advertisement terminal macro base station MCG measurement gap configuration information, including:SFN_M%4=1, SubOff_M=1, MGL_M=6, the measurement gap measurement cycle is 40ms.Wherein SFN_M%4=1, represents the system frame number SFN _ M of MCG measurement gap place radio framesMeeting the condition of SFN_M%4=1, " % " represents remainder；SubOff_M=1, represents MCGMeasurement gap is from the beginning of the Subframe#1 (subframe 1) that MCG measures radio frames；MGL_M=6,Represent a length of 6ms of measurement gap；
Network advertisement terminal MCG and SCG system time difference TD (Time Difference), originally showingIn example, when system time difference TD refers to the transmission between MCG SFN_M#0 and SCG SFN_S#0Between poor, herein SCG SFN_S#0 refer to SCG transmission first radio frames, MCG SFN_M#0Refer to that the MCG nearest with the SCG SFN_S#0 time before SCG SFN_S#0 transmission transmit theOne radio frames, as shown in Figure 3.In this example, TD=2*SFN+7.5*Subframe=27.5ms.
Network side can use identical or different message informing terminal MCG measurement interval configuration informationsPoor with MCG Yu SCG system time, concrete which kind of message of employing is not construed as limiting herein, if terminal energyEnough know.
Step 2:
Terminal is according to MCG measurement gap configuration information SFN_M, SubOff_M, MGL_MAnd system time difference TD calculates SCG measurement gap configuration information.Calculation procedure is as follows:
A) calculate MCG measurement gap and measure time point: T1=SFN_M*10+1；
Wherein, " 10 " represent that a radio frames comprises 10 subframes, and " 1 " is the value of SubOff_M.
B) calculate SCG measurement gap and measure time point: T2=T1-TD=SFN_M*10-26.5；
C) take the T2 numerical value more than 0, calculate SFN_S corresponding to SCG measurement gap,SubOff_S and MGL_S:
SFN_S can be calculated, due to floor (T2/10) %4=2, i.e. by formula SFN_S=floor (T2/10)SFN_S can be obtained and meet following condition: SFN_S%4=2；Wherein, function floor (x) returns and is not more than xMax-int；" 4 " represent that the measurement cycle of SCG is 40ms (each radio frames is 10ms),I.e. 4 radio frames；
Judge the start time position of MCG measurement interval and the start time position of SCG measurement intervalRelation, if the start time position of MCG measurement interval is at the start time position of SCG measurement intervalBefore, then following formula is used to calculate SubOff_S:SubOff_S=ceil (mod (T2,10)), function ceil (x)For returning the smallest positive integral value not less than x.In this example, as it is shown on figure 3, MCG measurement interval riseBeginning time location, before the start time position of SCG measurement interval, uses following formula to calculate and obtainsSubOff_S:ceil (mod (T2,10))=4, i.e. SubOff_S=4；If MCG measurement interval is initialTime location is identical with the start time position of SCG measurement interval, or initiateing in SCG measurement intervalAfter time location, then following formula is used to calculate SubOff_S:SubOff_S=floor (mod (T2,10)), ginsengSee example 3-6.
Preferably, it is possible to use following formula judges that the start time position of MCG measurement interval is measured with SCGThe relation of the start time position at interval, round (mod (T2,1)), wherein, function round (x) returns xThe integer value that rounds up, if round (x) result is 1, show the initial time of MCG measurement intervalPosition, before the start time position of SCG measurement interval, if round (x) result is 0, shows MCGThe start time position of measurement interval is after the start time position of SCG measurement interval or identical.
To sum up, terminal calculate obtain SCG measurement gap configuration information SFN_S%4=2,SubOff_S=4, MGL_S=6, wherein SFN_S%4=2, represent SCG measurement gap instituteThe condition of SFN_S%4=2 is met at the system frame number SFN _ S of radio frames；SubOff_S=4, represents SCGMeasurement gap is from the beginning of the Subframe#4 that SCG measures radio frames；MGL_S=6, representsThe a length of 6ms (the measurement interval length of SCG with MCG is identical) of measurement gap；The measurement gap measurement cycle is that (the measurement cycle of SCG with MCG is identical, can be configured to for 40ms40ms, 80ms etc.), as shown in Figure 3.
Application example 2
Step 1:
Network advertisement terminal macro base station MCG measurement gap configuration information, including:SFN_M%4=1, SubOff_M=1, MGL_M=6, the measurement gap measurement cycle is 40ms.Wherein SFN_M%4=1, represents the system frame number SFN _ M of MCG measurement gap place radio framesMeet the condition of SFN_M%4=1；SubOff_M=1, represents that MCG measurement gap is from MCGThe Subframe#1 measuring radio frames starts；MGL_M=6, represents that measurement gap's is a length of6ms；
Network advertisement terminal MCG and SCG system time difference TD (Time Difference), originally showingIn example, system time difference TD refers to MCG SFN_M=4 (SFN_M%4=0) and SCGTransmission time difference between SFN_S=0 (SFN_S%4=0), SCG SFN_S#0 refers to SCG hereinTransmission first radio frames, MCG SFN_M#4 refer to SCG SFNS#0 transmit after with SCGThe qualified MCG transmission radio frames that the SFN_S#0 time is nearest, owing to MCG SFN_M#4 isNearest MCG measurement interval cycle initial position after SCG SFN_S#0 transmission, thus impose a condition intoSFN_M%4=0, as shown in Figure 4.In this example, TD=1*SFN+2.5*Subframe=12.5ms.
Step 2:
Terminal is according to MCG measurement gap configuration information SFN_M, SubOff_M, MGL_MAnd system time difference TD calculates SCG measurement gap configuration information.Calculation procedure is as follows:
A) within mono-measurement cycle of SCG, calculate MCG measurement gap and be mapped to SCG measurementInterlude point:
T3=SFN_M*10+SubOff_M+TD=SFN_M*10+13.5；
B) SCG measurement gap corresponding SFN_S, SubOff_S and MGL_S are calculated
Floor (T3/10) %4=2, i.e. SFN_S%4=2；
In this example, round (mod (T3,1))=1, as shown in Figure 4, the initial time position of MCG measurement intervalPut before the start time position of SCG measurement interval, then ceil (mod (T3,10))=4, i.e.SubOff_S=4；
To sum up, terminal calculate obtain SCG measurement gap configuration information SFN_S%4=2,SubOff_S=4, MGL_S=6, wherein SFN_S%4=2, i.e. SCG measurement gap placeSystem frame number SFN _ the S of radio frames meets SFN_S%4=2 condition；SubOff_S=4, i.e. SCGMeasurement gap is from the beginning of the Subframe#4 that SCG measures radio frames；MGL_S=6, i.e.The a length of 6ms of measurement gap；The measurement gap measurement cycle is 40ms, such as Fig. 4Shown in.
Application example 3
Step 1:
Network advertisement terminal macro base station MCG measurement gap configuration information, whereinSFN_M%4=1, SubOff_M=1, MGL_M=6.Wherein SFN_M%4=1, i.e. MCGSystem frame number SFN _ the M of measurement gap place radio frames meets SFN_M%4=1 condition；The Subframe#1 that SubOff_M=1, i.e. MCG measurement gap measures radio frames from MCG opensBegin；The a length of 6ms of MGL_M=6, i.e. measurement gap；In this example, pre-for terminalThe measurement gap measurement cycle of configuration MCG is 40ms, as shown in Figure 5；
Network advertisement terminal MCG and SCG system time difference TD (Time Difference), originally showingIn example, wherein system time difference TD refers to MCG SFN#0 and SCG SFN#0 transmission time difference,SCG SFN_S#0 refers to first radio frames of SCG transmission herein, and MCG SFN_M#0 refers toIt it is first of MCG transmission nearest with the SCG SFN_S#0 time before SCG SFN_S#0 transmitsRadio frames, as shown in Figure 5.In this example, TD=2*SFN+7.9*Subframe=27.9ms
Step 2:
Terminal is according to MCG measurement gap configuration information SFN_M, SubOff_M, MGL_MAnd system time difference TD calculates SCG measurement gap configuration information.Calculation procedure is as follows:
A) calculate MCG measurement gap and measure time point: T1=SFN_M*10+1；
B) calculate SCG measurement gap and measure time point: T2=T1-TD=SFN_M*10-26.9；
C) T2 is taken more than 0 numerical value, SFN_S, SubOff_S that calculating SCG measurement gap is correspondingAnd MGL_S
Floor (T2/10) %4=2, i.e. SFN_S%4=2；
In this example, round (mod (T2,1))=0, as it is shown in figure 5, the initial time position of SCG measurement intervalPut before the start time position of MCG measurement interval, then floor (mod (T2,10))=3, i.e.SubOff_S=3；
To sum up, terminal calculate obtain SCG measurement gap configuration information SFN_S%4=2,SubOff_S=3, MGL_S=6, wherein SFN_S%4=2, i.e. SCG measurement gap place withoutSystem frame number SFN _ the S of line frame meets SFN_S%4=2 condition；SubOff_S=3, i.e. SCGMeasurement gap is from the beginning of the Subframe#3 that SCG measures radio frames；MGL_S=6, i.e.The a length of 6ms of measurement gap；The measurement gap measurement cycle is 40ms, such as Fig. 5Shown in.
Application example 4
Step 1:
Network advertisement terminal macro base station MCG measurement gap configuration information, whereinSFN_M%4=1, SubOff_M=1, MGL_M=6.Wherein SFN_M%4=1, i.e. MCGSystem frame number SFN _ the M of measurement gap place radio frames meets SFN_M%4=1 condition；The Subframe#1 that SubOff_M=1, i.e. MCG measurement gap measures radio frames from MCG opensBegin；The a length of 6ms of MGL_M=6, i.e. measurement gap；In this example, pre-for terminalThe measurement gap cycle of configuration MCG is 40ms, as shown in Figure 6；
Network advertisement terminal MCG and SCG system time difference TD (Time Difference), during systemBetween difference TD refer to MCG SFN_M=4 (SFN_M%4=0) and SCG SFN_S=0 (SFN_S%4=0)Transmission time difference, SCG SFN_S#0 refers to first radio frames of SCG transmission, MCG hereinSFN_M#4 refer to SCG SFN_S#0 transmit after the time nearest meet SFN_M%4=0 conditionRadio frames, as shown in Figure 6.In this example, TD=1*SFN+2.1*Subframe=12.1ms
Step 2:
Terminal is according to MCG measurement gap configuration information SFN_M, SubOff_M, MGL_MAnd system time difference TD calculates SCG measurement gap configuration information.Calculation procedure is as follows:
B) within mono-measurement cycle of SCG, calculate MCG measurement gap and be mapped to SCG measurementSart point in time:
T3=SFN_M*10+SubOff_M+TD=SFN_M*10+13.1；
B) SCG measurement gap corresponding SFN_S, SubOff_S and MGL_S are calculated
Floor (T3/10) %4=2, i.e. SFN_S%4=2；
In this example, round (mod (T3,1))=0, as shown in Figure 6, the initial time position of SCG measurement intervalPut before the start time position of MCG measurement interval, then floor (mod (T3,10))=3, i.e.SubOff_S=3；
To sum up, terminal calculate obtain SCG measurement gap configuration information SFN_S%4=2,SubOff_S=3, MGL_S=6, wherein SFN_S%4=2, i.e. SCG measurement gap place withoutSystem frame number SFN _ the S of line frame meets SFN_S%4=2 condition；SubOff_S=3, i.e. SCGMeasurement gap is from the beginning of the Subframe#3 that SCG measures radio frames；MGL_S=6, i.e.The a length of 6ms of measurement gap；The measurement gap measurement cycle is 40ms, such as Fig. 6Shown in.
Application example 5
Step 1.
Network advertisement terminal macro base station MCG measurement gap configuration information, whereinSFN_M%4=1, SubOff_M=1, MGL_M=6.Wherein SFN_M%4=1, i.e. MCGSystem frame number SFN _ the M of measurement gap place radio frames meets SFN_M%4=1 condition；The Subframe#1 that SubOff_M=1, i.e. MCG measurement gap measures radio frames from MCG opensBegin；The a length of 6ms of MGL_M=6, i.e. measurement gap；In this example, pre-configured MCG'sThe measurement gap cycle is 40ms, as shown in Figure 7；
Network advertisement terminal MCG and SCG system time difference TD (Time Difference), be whereinSystem time difference TD refers to MCG SFN#0 and SCG SFN#0 transmission time difference, SCG hereinSFN_S#0 refers to first radio frames of SCG transmission, and MCG SFN_M#0 refers at SCGThe MCG SFN_M#0 that before SFN_S#0 transmission, the time is nearest, as shown in Figure 7.In this example,TD=2*SFN+8*Subframe=28ms
Step 2:
Terminal is according to MCG measurement gap configuration information SFN_M, SubOff_M, MGL_MAnd system time difference TD calculates SCG measurement gap configuration information.Calculation procedure is as follows:
A) calculate MCG measurement gap and measure time point: T1=SFN_M*10+1；
B) calculate SCG measurement gap and measure time point: T2=T1-TD=SFN_M*10-27；
C) T2 is taken more than 0 numerical value, SFN_S, SubOff_S that calculating SCG measurement gap is correspondingAnd MGL_S
Floor (T2/10) %4=2, i.e. SFN_S%4=2；
In this example, round (mod (T2,1))=0, as it is shown in fig. 7, the initial time position of MCG measurement intervalPut identical with the start time position of SCG measurement interval, then floor (mod (T2,10))=3, i.e.SubOff_S=3；
To sum up, terminal calculate obtain SCG measurement gap configuration information SFN_S%4=2,SubOff_S=3, MGL_S=6, wherein SFN_S%4=2, i.e. SCG measurement gap place withoutSystem frame number SFN _ the S of line frame meets SFN_S%4=2 condition；SubOff_S=3, i.e. SCGMeasurement gap is from the beginning of the Subframe#3 that SCG measures radio frames；MGL_S=6, i.e.The a length of 6ms of measurement gap；The measurement gap measurement cycle is 40ms, such as Fig. 7Shown in.
Application example 6
Step 1:
Network advertisement terminal macro base station MCG measurement gap configuration information, whereinSFN_M%4=1, SubOff_M=1, MGL_M=6.Wherein SFN_M%4=1, i.e. MCGSystem frame number SFN _ the M of measurement gap place radio frames meets SFN_M%4=1 condition；The Subframe#1 that SubOff_M=1, i.e. MCG measurement gap measures radio frames from MCG opensBegin；The a length of 6ms of MGL_M=6, i.e. measurement gap；The measurement gap cycle is40ms, as shown in Figure 8；
Network advertisement terminal MCG and SCG system time difference TD (Time Difference), during systemBetween difference TD refer to MCG SFN_M=4 (SFN_M%4=0) and SCG SFN_S=0 (SFN_S%4=0)Transmission time difference, SCG SFN_S#0 refers to first radio frames of SCG transmission, MCG hereinSFN_M#4 refer to SCG SFN_S#0 transmit after the time nearest meet SFN_M%4=0 conditionRadio frames, as shown in Figure 8.In this example, TD=1*SFN+2*Subframe=12ms
Step 2:
Terminal is according to MCG measurement gap configuration information SFN_M, SubOff_M, MGL_MAnd system time difference TD calculates SCG measurement gap configuration information.Calculation procedure is as follows:
A) within mono-measurement cycle of SCG, calculate MCG measurement gap and be mapped to SCG measurementSart point in time:
T3=SFN_M*10+SubOff_M+TD=SFN_M*10+13；
B) SCG measurement gap corresponding SFN_S, SubOff_S and MGL_S are calculated
Floor (T3/10) %4=2, i.e. SFN_S%4=2；
In this example, round (mod (T3,1))=0, as shown in Figure 8, the initial time position of MCG measurement intervalPut identical with the start time position of SCG measurement interval, then floor (mod (T3,10))=3, i.e.SubOff_S=3；
To sum up, terminal calculate obtain SCG measurement gap configuration information SFN_S%4=2,SubOff_S=3, MGL_S=6, wherein SFN_S%4=2, i.e. SCG measurement gap place withoutSystem frame number SFN _ the S of line frame meets SFN_S%4=2 condition；SubOff_S=3, i.e. SCGMeasurement gap is from the beginning of the Subframe#3 that SCG measures radio frames；MGL_S=6, i.e.The a length of 6ms of measurement gap；The measurement gap measurement cycle is 40ms, such as Fig. 8Shown in.
If the mode using terminal measurement report goes to feed back the time difference between MCG and SCG, thisMode, on the one hand adds power consumption of terminal, and on the other hand network needs continuous dispatch terminal uplink,Add offered load undoubtedly；And mode of based on network assistance, the relevant letter that terminal is provided by networkBreath prepares to know the configuration information of SCG measurement interval, it is not necessary to test constantly and feedback, greatly reducesThe energy consumption of terminal and offered load.
Although the embodiment that disclosed herein is as above, but described content only readily appreciates the present inventionAnd the embodiment used, it is not limited to the present invention.Technology people in any art of the present inventionMember, on the premise of without departing from the spirit and scope that disclosed herein, can be in the form implemented and thinAny amendment and change is carried out on joint, but the scope of patent protection of the present invention, still must be with appended rightClaim is defined in the range of standard.