CN102271358A - Method, device and terminal for inter-frequency inter-system measurement scheduling in long term evolution (LTE) connection mode - Google Patents
Method, device and terminal for inter-frequency inter-system measurement scheduling in long term evolution (LTE) connection mode Download PDFInfo
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Abstract
The invention relates to the field of communication measurement scheduling, and provides a method, a device and a terminal for inter-frequency inter-system measurement scheduling in a long term evolution (LTE) connection mode. The method comprises the following steps of: acquiring an effective cell list to be measured; calculating repeat counts of measurement time buckets of each frequency point, arranging the measurement time bucket with the lowest repeat count at a current measurement GAP, marking that the other measurement time buckets, overlapped with the measurement time bucket, of the frequency point cannot be arranged at the current measurement GAP, deleting the repeated information of the other measurement time buckets of the frequency point with the measurement time bucket, and simultaneously marking that all the measurement time buckets of the frequency point are arranged; and repeating the process by taking residual effective measurement time buckets as objects, and if the number of the effective measurement time buckets is 0 and the number of the unarranged measurement time buckets is not 0, continuing arranging the measurement time buckets at the next measurement GAP until all the measurement time buckets are arranged. The invention also provides the device and the terminal for the measurement scheduling. By the method, the device and the terminal, system measurement real-time performance and effectiveness are improved, and measurement efficiency is improved.
Description
Invention field
The present invention relates to communication measurement scheduling field, be particularly related to a kind of being operated under the time-division long evolving system LTETDD connection mode, to measurement scheduling method, device and the terminal of different system cells such as LTE TDD alien-frequency district and TD-SCDMA, GSM or EDGE.
Background technology
Terminal (User Equipment, abbreviation UE) cell monitoring that needs monitoring network to issue under LTE TDD connection mode is concentrated the signal quality of the different system cell of alien frequencies, when satisfying handoff threshold, signal quality can trigger switching flow, need satisfy high accuracy and real-time for monitoring the signal quality monitoring of concentrating the different system cell of alien frequencies, under LTE TDD system connection mode, protocol requirement terminal 200ms reports LTE TDD co-frequency cell measurement result one time, and 480ms reports the different system of alien frequencies (to comprise LTE TDD alien frequencies, other different systems such as TD SDMA TD-SCDMA, GSM/EDGE etc.) measurement result.Under LTE TDD connection mode, the periodic existence measures at interval (be called for short and measure GAP), as Fig. 1, length is 6ms, measuring GAP in the time period, UE does not transmit and receive data, and repeats on time domain with " measuring the GAP repetition period ", measuring GAP might not be at the start-up portion of measuring the GAP repetition period, and may be the time point of " measuring the GAP skew " from the distance zero-time; The measurement GAP repetition period can be configured to 40ms and 80ms, therefore may exist 12 or 6 to measure GAP in the next report cycle of LTE TDD system connection mode, therefore the LTE/TD-SCDMA/GSM multimode terminal is how under the situation that does not influence LTE TDD connection mode communication task, utilizing and measure the concentrated LTE TDD alien-frequency district of GAP measurement supervision in real time accurately and effectively and the signal quality of different system cells such as TD-SCDMA, GSM or EDGE, is the problem that the LTE/TD-SCDMA/GSM/EDGE multimode terminal must solve.
LTE TDD system frame structure as shown in Figure 2; each radio frames length of this system is 10ms; the field that each radio frames is 5ms by two durations is formed; time slot and three special territories that each field is 0.5ms by 8 durations; be respectively descending pilot frequency time slot (down-link pilot symbol; abbreviation DwPTS), main protection time slot (guard period is called for short GP) and uplink pilot time slot (up-link pilot symbol is called for short UpPTS) are formed.Total duration of DwPTS, GP and UpPTS is 1ms, and specifically the duration of each part is different and different according to configuration.Subframe 1 and subframe 6 comprise DwPTS, GP and UpPTS, and remaining subframe all is made of two time slots, and for example subframe i is made of time slot 2i and 2i+1; Subframe 0,5 and DwPTS give over to downlink transfer usually, as the subframe of downlink transfer with as separating by a transfer point between the subframe of uplink, the cycle of up-downgoing transfer point can be 5ms, also can be 10ms, for the up-downgoing transfer point cycle of 5ms, UpPTS and subframe 2,7 give over to uplink, for the up-downgoing transfer point cycle of 10ms, DwPTS is present in two fields of a radio frames, and GP and UpPTS only are present in first field, the duration of DwPTS in second field is 1ms, and UpPTS and subframe 2 give over to uplink, and subframe 7 gives over to downlink transfer to 9.The uplink-downlink configuration that LTE TDD system is concrete sees Table 1.
Table 1 uplink-downlink configuration
Wherein, the D representative is descending, and the U representative is up, and the S representative comprises the subframe of three special domain.
By table 1 as seen, no matter which kind of configuration, subframe 0 and subframe 5 all are descending, and the DwPTS in the special subframe is descending, and all can there be DwPTS in every kind of configuration, but special subframe disposes the time span possibility difference of different DwPTS.Other subframe uplink-downlink configuration information issue in system information of subdistricts piece 1 (being called for short SIB1), and UE has received this System information block can obtain other subframe uplink-downlink configuration situations of this sub-district afterwards.Under LTE TDD connection mode, UE has obtained this sub-district subframe uplink-downlink configuration, and can determine whether the uplink-downlink configuration of LTE TDD to be measured sub-district (also being LTE TDD alien-frequency district) is consistent with this sub-district in the measurement tabulation that is issued by network.
The frame structure of TD-SCDMA system as shown in Figure 3, its spreading rate is 1.28Mcps, each wireless sub-frame length is 5ms, be 6400chip, each subframe can be divided into 7 conventional time slot TS0～TS6 again and three special time slots (comprise two pilot time slots, be descending pilot frequency time slot DwPTS and uplink pilot time slot UpPTS, with a main protection interval GP), the TS0 time slot is always distributed to down link, is used for bearing system broadcast channel and other possible down channel; TS1～TS6 time slot then is used to carry the uplink and downlink Traffic Channel.It is synchronous that UpPTS and DwPTS are used for setting up initial uplink and downlink respectively.The burst structure of DwPTS comprises the descending synchronous code (being called for short SYNC_DL) of a 64chip, its effect is that cell ID and initial synchronisation are set up, business time-slot TS0～the TS6 structure as shown in Figure 4, length is 864chip, wherein comprise the data symbol of two segment lengths for 352chip, and a middle segment length is the training sequence (abbreviating the midamble sign indicating number as) of 144chip, is used for cell ID, channel estimating and synchronous etc.
Gsm system is the FDD system, frame structure as shown in Figure 5, Broadcast Control Channel (be called for short BCCH) carrier wave uninterruptedly sends, just can measure this GSM sub-district as long as know this carrier frequency point.
The measurement index of LTE TDD system is cell reference signals received power (being called for short REF RSCP), in all descending sub frames, all there is cell reference signals, therefore and the time-frequency position is fixed, and can obtain the measurement sample at descending sub frame arbitrarily for the LTETDD sub-district.Because LTE TDD system is the time-division synchro system, the frame head that can guarantee LTE TDD sub-district in LTE TDD system aligns in network terminal, but because Bottom Runby and cell networking radius difference, make the UE termination receive the different districts signal and can have certain difference in time, but as long as this difference is no more than Cyclic Prefix (being called for short CP) length, just can be to not measuring influence to some extent.Therefore, for LTE TDD system, the measurement sample is removed to obtain at its descending sub frame in each sub-district, and whether the uplink-downlink configuration of each frequency is identical with Serving cell is informed by network.
The measurement index of TD-SCDMA system is the received signal code power (being called for short PCCPCH RSCP) of sub-district Primary Common Control Physical Channel, PCCPCH fixedly is in first of TS0, second code channel, the method of measurement of PCCPCHRSCP generally is to utilize Midamble sign indicating number and the home cell ID correlation computations power of sub-district TS0 at present, therefore, for the TD-SCDMA system, the Midamble sign indicating number of TD-SCDMA sub-district TS0 is measured sample for it.Equally, because the TD-SCDMA system is the time-division synchro system, the frame head that can guarantee TD-SCDMA sub-district in the TD-SCDMA system all aligns in network terminal, but because Bottom Runby and cell networking radius difference, make the UE termination receive the different districts signal and can have certain difference in time, but as long as the synchronization timing difference of sub-district is no more than the shift time (16chip) of Midamble sign indicating number, just can be to not measuring influence to some extent, therefore, for the TD-SCDMA system, each sub-district obtains the measurement sample by the fixing TS0 that receives, and system in all frequencies to obtain the position of measurement sample identical.
The measurement index of gsm system is GSM carrier wave received signal intensity indication (being called for short CAR RSSI), and the measurement sample that the measurement of broadband power needs can utilize the GSM bcch carrier, and the measurement tabulation that network issues can inform to receive this signal on which frequency.
In the prior art, alien frequencies isosystem measurement dispatching method is after obtaining the different system cell measurement of all alien frequencies to be measured sample point timing position under the LTE connection mode, determine the measuring period of all sub-districts to be measured according to frequency point cell number to be measured, promptly the measurement sample data that receives a frequency point cell to be measured in each measures GAP is measured, the measurement sample data that next measurement GAP receives next frequency point cell to be measured is measured, up to the measurement of finishing all frequency point cells to be measured, in the measurement GAP of back, repeat above process then; Its terminal UE alien frequencies isosystem measurement scheduling flow under LTE TDD connection mode is:
1, obtain the cell list to be measured that issues from network,
This tabulation has comprised the access technology type of all sub-districts to be measured, subdistrict frequency point and sub-district ID, and according to the agreement regulation, cell list to be measured comprises:
At least 3 LTE TDD pilot frequency point, at least 4 LTE TDD of each frequency sub-district;
At least 3 TD-SCDMA frequencies, at least 6 TD-SCDMA sub-districts of each frequency;
At least 1 GSM frequency;
2, the timing of finishing all frequency point cells to be measured is obtained, and obtains effective frequency point cell tabulation to be measured;
Under LTE TDD connection mode, network has been informed the timing information of LTE TDD alien-frequency district, the GSM frequency does not need to obtain regularly yet, therefore, directly LTE TDD frequency to be measured and reference signal position thereof are recorded as the effective frequency point information to be measured of LTE TDD, the GSM frequency is recorded as effective GSM frequency point information to be measured.
And obtain for the timing of TD-SCDMA frequency point cell, may further comprise the steps:
2.1, in measuring GAP, receive the data of TD-SCDMA frequency one a radio frames 5ms;
2.2, by the special window construction of idle window, seek descending pilot frequency time slot DwPTS, and then obtain the training sequence Midamble of TS0;
2.3, the training sequence Midamble of the TS0 that obtains and all sub-district ID of this frequency are carried out related operation, if obtain failure synchronously, this frequency is recorded as invalid TD-SCDMA frequency to be measured, repeat 2.1-2.3, up to having detected all TD-SCDMA frequencies; Otherwise, be effective TD-SCDMA frequency point information to be measured with this frequency and training sequence bits put thereof, withdraw from the timing acquisition process of TD-SCDMA frequency point cell;
By effective TD-SCDMA frequency point information to be measured of record, effective LTE TDD frequency point information to be measured and effective GSM frequency point information to be measured, generate the frequency tabulation of the different system of effective alien frequencies to be measured;
3, finish the measurement scheduling
A kind of measurement scheduling method is: each is measured and measures the different system of an alien frequencies to be measured frequency among the GAP, for LTE TDD sub-district, utilize the data of the 0th or the 5th subframe, for the TD-SCDMA sub-district, whenever utilize the Midamble data of TS0, utilize the data of this frequency all can for the GSM sub-district.What effective frequencies of measuring are arranged, just need what measurement GAP to finish once the measurement scheduling of all sub-districts to be measured.
Another kind of measurement scheduling method is: measure in the report cycle at one, each is measured GAP and all is used for measuring same effective frequency to be measured, be used for increasing the measurement sample number, in next different-frequency measure report cycle, measure next effective frequency to be measured, up to measuring all frequencies effective to be measured, it is to repeat in the cycle that this process is counted * measurement report cycle with effective frequency to be measured.
From as can be seen above, there is following problem in measurement scheduling method of the prior art, measure frequency of GAP measurement for one and make that the measurement number of times of measuring each frequency in the report cycle is less, it is inaccurate to cause measuring the interior measurement result of report cycle, and each measurement GAP is used for measuring same effective frequency to be measured in a measurement report cycle, then can significantly cause measuring period longer, the lead time between the measurement sample of a frequency be bigger, and the real-time of measurement is not good; And under connection mode, may be for a certain reason, as resource reconfiguration etc., cause network sending measuring control information again, but since the time location of the timing synchronizing information of the sub-district to be measured that obtained of UE and cell measurement sample point to be measured with reshuffle before compare, do not change, may make UE repeat operating with the measurement sample point synchronously of sub-district to be measured, efficiency of measurement is low;
Summary of the invention
Technical problem solved by the invention is to provide that a kind of measurement is more accurate, alien frequencies isosystem measurement dispatching method, device and terminal under the better LTETDD connection mode of real-time.
For overcoming the above problems, the invention provides alien frequencies isosystem measurement dispatching method under a kind of LTE tdd mode, comprising:
Steps A: obtain the frequency tabulation of the different system of effective alien frequencies to be measured, in measuring GAP, calculate the measurement period that each the different system of effective alien frequencies to be measured frequency can be used in measurement, calculate each frequency measurement period number of repetition;
Step B: the frequency of the measurement period that number of repetition is minimum is arranged in to be measured in the GAP, other frequency measurement period that mark and this measurement period repeat, and the frequency of the measurement period that this number of repetition is minimum is removed
Step C: judged whether unlabelled measurement period? if, enter step D, otherwise, step e entered;
Step D: calculate unmarked measurement period number of repetition, return step B;
Step e: judge whether to exist and do not arrange measurement period? if enter step F; Otherwise, finish debug process;
Step F: switch to the next GAP of measurement, return step B.
Described steps A further comprises:
At first, carry out the synchronous acquisition process of TD-SCDMA frequency point cell, obtain the effective cell list to be measured of TD-SCDMA,
Then, divide the measurement period or the TD-SCDMA cell measurement period to be measured of LTE TDD sub-district to be measured, obtain the GSM cell measurement period;
At last, obtain the effective cell list to be measured of the different system of each alien frequencies, further obtain measurement period information; Comprise and calculate the measurement period number of repetition that each has divided measurement period and other frequencies.
The described synchronous acquisition process of TD-SCDMA frequency point cell that carries out obtains the effective cell list to be measured of TD-SCDMA, specifically comprises:
A2, initialization frequency counter Fn are 0;
A3, initialization sub-district counter i are 0;
A4, UE receive the data of Fn TD-SCDMA frequency 5ms in the tabulation in measuring GAP;
Preferably, in measuring GAP, after the data of Fn first 5ms of TD-SCDMA frequency of reception, continue to receive the data of a plurality of 5ms in the follow-up again measurement GAP, and be added in the data of reception for the first time;
A5, use to measure in the tabulation i sub-district ID of Fn frequency and reception data and finish the TD-SCDMA timing and obtain synchronously; If synchronously Midamble position, TD-SCDMA sub-district is then stored in success, perhaps further TD-SCDMA cell history synchronizing information is labeled as availablely, no longer other TD-SCDMA sub-districts are done synchronously and obtain, enter steps A 9; Otherwise forward steps A 6 to;
Do A6, i=i+1 judge i＞largest cell number? be then to enter A7, otherwise return steps A 4;
Do A7, Fn=Fn+1 judge Fn＞maximum TD-SCDMA frequency number? be then to enter A8, otherwise return steps A 3;
A8, all TD-SCDMA of mark sub-district to be measured are invalid, perhaps further, are labeled as TD-SCDMA cell history synchronizing information unavailable; Enter steps A 9;
A9, obtain the effective cell list to be measured of TD-SCDMA.
Preferably, after all TD-SCDMA of steps A 8 marks sub-district to be measured is invalid, start timer T-Sync,, then repeat the synchronous acquisition process of TD-SCDMA frequency point cell if timer T-Sync is overtime; Wherein, the overtime thresholding of described T-Sync is 5-20s.
Preferably, before steps A 2, also comprise:
A1, at first judge that regularly whether synchronizing information is available in historical TD-SCDMA sub-district, if available, then go to steps A 9, otherwise enters A2.
Preferably, described steps A 1 judges that regularly whether synchronizing information is available in historical TD-SCDMA sub-district, comprising:
If enter connection mode from idle pulley, regularly synchronizing information is unavailable in then historical TD-SCDMA sub-district;
Perhaps
When under connection mode, receiving reconfigure command, if Serving cell does not change, then start regularly synchronizing information overtime timer T-HistorySync of historical TD-SCDMA sub-district, if T-HistorySync is overtime, regularly synchronizing information is unavailable in then historical TD-SCDMA sub-district; If Serving cell changes, regularly synchronizing information is unavailable in then historical TD-SCDMA sub-district; Wherein the overtime thresholding of T-HistorySync is 5-10s;
Perhaps
If withdraw from connection mode, regularly synchronizing information is unavailable in then historical TD-SCDMA sub-district.
Described obtaining the GSM cell measurement period comprises:
A10, judge in the tabulation of high-rise sending measuring whether have GSM sub-district to be measured, if there is no then finish this process; Otherwise enter steps A 11;
A11, obtain and measure the time zone of not filled among the GAP by any measurement period; Enter steps A 12;
A12, judge whether the GSM frequency points to be measured of measurement period to be divided is 0, if then finish this process, otherwise carry out steps A 13;
A13, judge measuring among the GAP not in the time zone of being filled by any measurement period whether have the continuum of length greater than GSM measurement period length, is then to enter steps A 14; Otherwise enter steps A 15;
The time zone of A14, a GSM measurement period length beginning from this time zone original position is as a GSM measurement period; Remove in the time zone that this time zone is not filled by any measurement period from measure GAP simultaneously; Further the GSM of measurement period to be divided frequency points to be measured is subtracted 1; Return steps A 12;
A15, each measurement period number of repetition of having divided measurement period and other frequencies of calculating; The time zone that the measurement period that number of repetition is minimum takies equally also is arranged to the measurement period of a GSM frequency to be measured; Return steps A 12.
The measurement period that each effective frequency of described steps A can be used in measurement is an equal time length, all uses the measuring section of equal length for all frequencies to be measured, and measurement period length is 1ms, 2ms or 3ms.
Measurement period that each effective frequency of described steps A can be used in measurement is an equal time length not, come discriminating measurement section time span according to the employed access technology in the sub-district of frequency to be measured, measurement period length equals the shared time span of each frequency test sample book point and adds radio frequency change-over time.
Among the described step B,, then select a measurement period at random or according to the frequency degree of priority if a plurality of frequency measurement period number of repetition is all identical.
For overcoming the above problems, the present invention also provides alien frequencies isosystem measurement dispatching device under a kind of LTE tdd mode, comprising:
With measurement sample acquisition module, finish for the timing of measuring sub-district to be measured in the tabulation and obtain synchronously and according to the definite measurement of sync bit sample point time location synchronously;
The measurement period acquisition module according to effective frequency tabulation to be measured, calculates the measurement period that each effectively measures frequency, and the number of repetition of each measurement period and other frequency measurement period;
Measure scheduler module, according to synchronously and measure measurement sample timing information that the sample acquisition module obtains and finish measurement scheduling for sub-district to be measured, be specially, the measurement period that number of repetition is minimum is arranged in current measurement GAP, to be labeled as with other frequency measurement period that this measurement period repeats and to be arranged in current measurement GAP, with other measurement period duplicate message deletions of this measurement period place frequency, all measurement period of this frequency are labeled as arrange simultaneously; Judge whether that measurement period quantity is 0 and not arrange measurement period quantity be not 0, is then to continue scheduling; Otherwise judge whether that all measurement period have been arranged,, then finish scheduling, continue scheduling otherwise go to the next GAP of measurement if be arranged;
Further, described synchronously and measure in the sample acquisition module, also comprise
Timer module if failure is obtained in the timing of all TD-SCDMA frequency point cells, then starts timer T-Sync, if timer T-Sync is overtime, then repeats the synchronous acquisition process of TD-SCDMA frequency point cell; Wherein, the overtime thresholding of described T-Sync is 5-20s.
Further, also comprise:
Measure the tabulation acquisition module, from the measurement tabulation that network issues, obtain effective frequency tabulation to be measured.
For overcoming the above problems, the present invention also provides alien frequencies isosystem measurement dispatch terminal under a kind of LTE tdd mode, comprises the measurement dispatching device, and:
Measurement module is finished the measurement of the sub-district to be measured that is scheduled, and specifically finishes the measurement of received signal code power RSCP, Reference Signal Received Power RSRP and received signal intensity indication RSSI, and gives measured value with measurement result and handle and reporting module;
Measured value is handled and reporting module, and measured value is carried out reporting high level after the reprocessing, finishes measurement.
The RF module, be used to finish RF is provided with and from air interface according to the reception data are set, and data are offered synchronously and measure the sample acquisition module.
Compared with prior art, the present invention can in the time, arrange abundant frequency measurement period at same measurement GAP as far as possible, improves and measures real-time and validity, has saved the measurement resource; Use historical information to instruct whether to need to carry out TD-SCMDA and regularly obtain synchronously, save unnecessary timing synchronization procedure; Obtain under the disabled situation in stage TD-SCMDA sub-district in tabulation, regularly carry out TD-SCMDA and regularly obtain synchronously, further guarantee the validity of measuring; Therefore, the present invention has effectively improved systematic survey real-time and validity, has saved the measurement resource, has improved efficiency of measurement.
Description of drawings
Fig. 1 is a prior art LTE TDD systematic survey GAP structure chart;
Fig. 2 is prior art LTE TDD system frame structure figure;
Fig. 3 is prior art TD-SCDMA system frame structure figure;
Fig. 4 is prior art TD-SCDMA system convention structure of time slot figure;
Fig. 5 is a prior art gsm system bcch carrier frame assumption diagram;
Fig. 6 is alien frequencies isosystem measurement dispatching method flow chart under the LTE connection mode of the present invention;
Fig. 7 is the synchronous acquisition process flow chart of TD-SCDMA frequency point cell of the present invention;
Fig. 8 obtains GSM cell measurement period process flow diagram for the present invention;
Fig. 9 measures measurement period distribution example schematic among the GAP for the present invention;
Figure 10 is alien frequencies isosystem measurement dispatching device structure chart under the LTE connection mode of the present invention;
Figure 11 is alien frequencies isosystem measurement dispatch terminal structure chart under the LTE connection mode of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, alien frequencies isosystem measurement dispatching method, device and terminal under the LTE connection mode are described in further detail, known implementation no longer describes in detail, to avoid there be unnecessary obscuring with content of the present invention.
The invention provides a kind of under the LTE tdd mode measurement scheduling method of the different system of alien frequencies, be achieved through the following technical solutions, as shown in Figure 6:
Steps A: obtain the frequency tabulation of the different system of effective alien frequencies to be measured, in measuring GAP, calculate the measurement period that each the different system of effective alien frequencies to be measured frequency can be used in measurement, calculate each frequency measurement period number of repetition;
The described different system of the effective alien frequencies to be measured frequency that obtains is tabulated, and is meant to obtain effective frequency tabulation to be measured from the measurement tabulation that network issues, and the measurement tabulation that network issues has comprised the access technology of sub-district to be measured, subdistrict frequency point and sub-district ID; Comprise obtaining of LTE TDD alien-frequency district, TD-SCDMA sub-district and GSM sub-district synchronous timing information, obtained timing when being in LTE TDD connection status LTE TDD system owing to UE; Gsm system does not need to obtain regularly, therefore, this process only needs to obtain the timing synchronized relation of TD-SCDMA to be measured sub-district, promptly in the reception TD-SCDMA sub-district wireless frame data of measuring GAP, utilize sub-district ID to carry out synchronous detecting,, then obtain the time location of cell measurement sample point to be measured if synchronous detecting is successful, because TD-SCDMA is a synchro system, therefore do not need synchronous acquisition process is carried out in other TD-SCDMA sub-districts again yet;
Steps A further comprises:
At first, carry out the synchronous acquisition process of TD-SCDMA frequency point cell, obtain the effective cell list to be measured of TD-SCDMA;
Then, divide the measurement period or the TD-SCDMA cell measurement period to be measured of LTE TDD sub-district to be measured, obtain the GSM cell measurement period;
At last, obtain the effective cell list to be measured of the different system of each alien frequencies, further obtain measurement period information; Comprise and calculate the measurement period number of repetition that each has divided measurement period and other frequencies.
The described synchronous acquisition process of TD-SCDMA frequency point cell that carries out obtains the effective cell list to be measured of TD-SCDMA, as shown in Figure 7, specifically comprises:
A2, initialization frequency counter Fn are 0;
A3, initialization sub-district counter i are 0;
A4, UE receive the data of Fn TD-SCDMA frequency 5ms in the tabulation in measuring GAP;
Preferably, in measuring GAP, after the data of Fn first 5ms of TD-SCDMA frequency of reception, continue to receive the data of a plurality of 5ms in the follow-up again measurement GAP, and be added in the data of reception for the first time;
A5, use to measure in the tabulation i sub-district ID of Fn frequency and reception data and finish the TD-SCDMA timing and obtain synchronously.If synchronously Midamble position, TD-SCDMA sub-district is then stored in success, perhaps further TD-SCDMA cell history synchronizing information is labeled as availablely, no longer other TD-SCDMA sub-districts are done synchronously and obtain, enter steps A 9; Otherwise forward steps A 6 to.
Do A6, i=i+1 judge i＞largest cell number? be then to enter A7, otherwise return steps A 4;
Do A7, Fn=Fn+1 judge Fn＞maximum TD-SCDMA frequency number? be then to enter A8, otherwise return steps A 3.
A8, all TD-SCDMA of mark sub-district to be measured are invalid, perhaps further, are labeled as TD-SCDMA cell history synchronizing information unavailable; Enter steps A 9;
A9, obtain the effective cell list to be measured of TD-SCDMA;
Preferably, after all TD-SCDMA of steps A 8 marks sub-district to be measured is invalid, start timer T-Sync,, then repeat the synchronous acquisition process of TD-SCDMA frequency point cell if timer T-Sync is overtime; Wherein, the overtime thresholding of described T-Sync is 5-20s;
Preferably, before steps A 2, also comprise:
A1, at first judge that regularly whether synchronizing information is available in historical TD-SCDMA sub-district, if available, then go to steps A 9, otherwise enters A2;
Preferably, described steps A 1 judges that regularly whether synchronizing information is available in historical TD-SCDMA sub-district, comprising:
If enter connection mode from idle pulley, regularly synchronizing information is unavailable in then historical TD-SCDMA sub-district;
Perhaps
When under connection mode, receiving reconfigure command, if Serving cell does not change, then start regularly synchronizing information overtime timer T-HistorySync of historical TD-SCDMA sub-district, if T-HistorySync is overtime, regularly synchronizing information is unavailable in then historical TD-SCDMA sub-district; If Serving cell changes, regularly synchronizing information is unavailable in then historical TD-SCDMA sub-district; Wherein the overtime thresholding of T-HistorySync is 5-10s;
Perhaps
If withdraw from connection mode, regularly synchronizing information is unavailable in then historical TD-SCDMA sub-district;
Because GSM is a frequency division systems, it is measured sample and is fixed on the bcch carrier, as long as from the measurement tabulation that network issues, obtain this frequency, can receive this signal on this frequency is used for measuring, therefore, obtaining of its measurement period need be determined at the vacant time zone of measuring GAP after LTE TDD measurement period or TD-SCDMA measurement period are determined;
Described obtaining the GSM cell measurement period as shown in Figure 8, comprising:
A10, judge in the tabulation of high-rise sending measuring whether have GSM sub-district to be measured, if there is no then finish this process; Otherwise enter steps A 11;
A11, obtain and measure the time zone of not filled among the GAP by any measurement period; Enter steps A 12;
A12, judge whether the GSM frequency points to be measured of measurement period to be divided is 0, if then finish this process, otherwise carry out steps A 13;
A13, judge measuring among the GAP not in the time zone of being filled by any measurement period whether have the continuum of length greater than GSM measurement period length, is then to enter steps A 14; Otherwise enter steps A 15;
The time zone of A14, a GSM measurement period length beginning from this time zone original position is as a GSM measurement period; Remove in the time zone that this time zone is not filled by any measurement period from measure GAP simultaneously; Further the GSM of measurement period to be divided frequency points to be measured is subtracted 1; Return steps A 12;
A15, each measurement period number of repetition of having divided measurement period and other frequencies of calculating; The time zone that the measurement period that number of repetition is minimum takies equally also is arranged to the measurement period of a GSM frequency to be measured; Return steps A 12.
Preferably, from the measurement tabulation that network issues, may not comprise one or more alien frequencies or different system cell information in LTE TDD alien-frequency district, TD-SCDMA sub-district or the GSM sub-district, then omit corresponding alien frequencies or different system cell and obtain synchronously or the measurement period acquisition process, from remaining alien frequencies or different system, obtain effective cell list to be measured and measurement period; For example, if do not comprise the TD-SCDMA cell information in the measurement that network the issues tabulation, then omit the TD-SCDMA frequency point cell and obtain synchronously and the measurement period acquisition process, in remaining LTE TDD alien-frequency district and GSM sub-district, obtain effective cell list to be measured and measurement period; If do not comprise LTE TDD alien-frequency district or GSM cell information in the measurement that network the issues tabulation, then omit LTE TDD alien-frequency district or GSM sub-district and obtain synchronously and the measurement period acquisition process, from remaining alien frequencies or different system, obtain effective cell list to be measured and measurement period.
The measurement period that each effective frequency of described steps A can be used in measurement is an equal time length, all uses the measuring section of equal length for all frequencies to be measured, and measurement period length is 1ms, 2ms or 3ms;
Measurement period that each effective frequency of described steps A can be used in measurement is an equal time length not, come discriminating measurement section time span according to the employed access technology in the sub-district of frequency to be measured, measurement period length equals the shared time span of each frequency test sample book point and adds radio frequency change-over time;
The described time span that can be used in the measurement period of measurement is greater than the shared time span of test sample book point and adds radio frequency change-over time, and described test sample book point is each descending sub frame, is the midamble of TS0, is arbitrarily greater than 64 GSM bits on the bcch carrier for GSM for the TD-SCDAM system for the LTE system.
Step B: the frequency of the measurement period that number of repetition is minimum is arranged in to be measured in the GAP, other frequency measurement period that mark and this measurement period repeat, and the frequency of the measurement period that this number of repetition is minimum is removed;
Calculating object measurement period number of repetition finds the minimum measurement period of number of repetition; To be labeled as with the measurement period that this measurement period repeats and to be arranged in current measurement GAP, this measurement period is arranged in current measurement GAP, all measurement period of this measurement period place frequency and the duplicate message of other measurement period are deleted, all measurement period of this measurement period place frequency are labeled as arrange simultaneously;
If a plurality of frequency measurement period numbers of repetition are all identical, then select a measurement period at random or according to the frequency degree of priority;
Described frequency degree of priority is meant the requirement to LTE TDD, TD-SCDMA, GSM or the preferential access technology of EDGE, when having preferential access to require to LTE TDD, can select the measurement period of LTE TDD frequency point cell, when having preferential access to require, can select the measurement period of TD-SCDMA frequency point cell etc. to TD-SCDMA.
Step C: judged whether unlabelled measurement period? if, enter step D, otherwise, step e entered;
To remain effective measurement period as object, effectively measurement period specifically comprises and is not labeled as the measurement period that can not be arranged in current measurement GAP and is not labeled as the measurement period of having arranged;
Step D: calculate unmarked measurement period number of repetition, return step B;
Step e: judge whether to exist and do not arrange measurement period? if enter step F; Otherwise, finish debug process;
Step F: switch to the next GAP of measurement, return step B;
Be easy to understand, now illustrate the process of step B step e, suppose that existing 6 are measured frequency, totally 7 measurement period are denoted as measurement period 1-7, and wherein measurement period 1 is the measurement period of TD-SCDMA frequency 1, and measurement period 2,3 is the measurement period of LTE TDD frequency 1, measurement period 4 is the measurement period of LTE TDD frequency 2, measurement period 5 is the measurement period of LTE TDD frequency 3, and measurement period 6 is the measurement period of GSM frequency 1, and measurement period 7 is the measurement period of GSM frequency 2; The measurement period distribution situation as shown in Figure 9 in measuring GAP, wherein measurement period 1 and measurement period 2,3,4 repeat, measurement period 2 and measurement period 1 repeat, measurement period 3 and measurement period 1,4 repeat, measurement period 4 and measurement period 1,3 repeat, measurement period 5 and other measurement period do not repeat, and measurement period 6 and measurement period 7 repeat, and measurement period 7 and measurement period 6 repeat.
1), the minimum measurement period of number of repetition is 5, do not have and measurement period that this measuring section repeats, measures GAP1 so this measurement period is arranged in, all measuring sections 5 of frequency 4 are labeled as arrange simultaneously.
2) be object, with effective measurement period 1,2,3,4,6,7, the statistics number of repetition also finds the minimum measurement period of number of repetition, here the number of repetition that finds measurement period 2,6,7 all is 2 times, select a measurement period at random or according to the frequency degree of priority, for example select measurement period 2, measurement period 1 is labeled as and can not arranges at current measurement GAP, measurement period 2 is arranged in measures GAP1, all measurement period 2,3 of 2 of frequencies are labeled as arrange;
3), be object with effective measurement period 4,6,7, the statistics number of repetition also finds the minimum measurement period of number of repetition 4, measurement period other measuring sections of getting along well for 4 this moments repeat, measurement period is arranged in measures GAP1, after measurement period 4 be labeled as arrange;
4), be object with effective measurement period 6,7, the statistics number of repetition also finds the minimum measurement period of number of repetition 6 or 7, selects measurement period 6 here, and measurement period 7 is labeled as and can not arranges at current measurements GAP, and measurement period is arranged in measurement GAP1,
5), current measurement GAP has not had effective vacant measurement period, but has also had measurement period 1,7 not arrange; According to step e measurement period 1,7 is arranged in measurement GAP2, all measurement period are all arranged since then;
According to above method, arrange all measurement period to need 2 to measure GAP altogether, if dispatch by prior art, at least need 7 to measure GAP, as seen, this method can greatly shorten Measuring Time, also greatly promoted measurement real-time and validity, efficiency of measurement obviously improves.
For overcoming the above problems, the present invention also provides the measurement dispatching device of the different system of alien frequencies under a kind of LTE tdd mode, as Figure 10, shown in Figure 11 comprising:
With measurement sample acquisition module, finish for the timing of measuring sub-district to be measured in the tabulation and obtain synchronously and according to the definite measurement of sync bit sample point time location synchronously;
The measurement period acquisition module according to effective frequency tabulation to be measured, calculates the measurement period that each effectively measures frequency, and the number of repetition of each measurement period and other frequency measurement period;
Measure scheduler module, according to synchronously and measure measurement sample timing information that the sample acquisition module obtains and finish measurement scheduling for sub-district to be measured, be specially, the measurement period that number of repetition is minimum is arranged in current measurement GAP, to be labeled as with other frequency measurement period that this measurement period repeats and to be arranged in current measurement GAP, with other measurement period duplicate message deletions of this measurement period place frequency, all measurement period of this frequency are labeled as arrange simultaneously; Judge whether that measurement period quantity is 0 and not arrange measurement period quantity be not 0, is then to continue scheduling; Otherwise judge whether that all measurement period have been arranged,, then finish scheduling, continue scheduling otherwise go to the next GAP of measurement if be arranged;
Measure the GAP control module, it is vacant to judge whether current measurement GAP still has, vacant as if having, and then goes to the measurement scheduler module, otherwise control goes to the next GAP of measurement;
Further, with measurement sample acquisition module, also comprise synchronously
Timer module if failure is obtained in the timing of all TD-SCDMA frequency point cells, then starts timer T-Sync, if timer T-Sync is overtime, then repeats the synchronous acquisition process of TD-SCDMA frequency point cell; Wherein, the overtime thresholding of described T-Sync is preferably 5-20s;
Further, also comprise:
Measure the tabulation acquisition module, be used for obtaining effective frequency tabulation to be measured, specifically comprise from the measurement tabulation that network issues:
1, obtain the cell list to be measured that issues from network,
2, the timing of finishing all frequency point cells to be measured is obtained, and obtains effective frequency point cell tabulation to be measured;
3, calculate the measurement period of LTE TDD and the effective sub-district to be measured of TD-SCDMA;
4, according to LTE TDD and TD-SCDMA measurement period information calculations GSM measurement period;
Under LTE TDD connection mode, network has been informed the timing information of LTE TDD alien-frequency district; Moreover, because the GSM frequency does not need to obtain regularly, therefore, directly LTE TDD frequency to be measured and reference signal position thereof are recorded as the effective frequency point information to be measured of LTE TDD, the GSM frequency is recorded as effective GSM frequency point information to be measured.
And obtain for the timing of TD-SCDMA frequency point cell, may further comprise the steps:
1) data of a TD-SCDMA frequency 5ms of reception in measuring GAP;
2), seek descending pilot frequency time slot DwPTS, and then obtain the training sequence Midamble of TS0 by the special window construction of DwPTS;
3) the training sequence Midamble of the TS0 that obtains and all sub-district ID of this frequency are carried out related operation, if this frequency point cell obtains failure synchronously, this frequency is recorded as invalid TD-SCDMA frequency to be measured, repeats 1-3, up to having detected all TD-SCDMA frequencies; Otherwise, be effective TD-SCDMA frequency point information to be measured with this frequency and training sequence bits put thereof, withdraw from the timing acquisition process of TD-SCDMA frequency point cell;
Further, also comprise:
Measurement module is finished the measurement of the sub-district to be measured that is scheduled, and specifically finishes the measurement of received signal code power RSCP, Reference Signal Received Power RSRP and received signal intensity indication RSSI, and gives measured value with measurement result and handle and reporting module;
Measured value is handled and reporting module, and measured value is carried out reporting high level after the reprocessing, finishes measurement.
The RF module, be used to finish RF is provided with and from air interface according to the reception data are set, and data are offered synchronously and measure the sample acquisition module;
The present invention has been described in detail purpose of the present invention, technical scheme and beneficial effect for execution mode or embodiment; should be understood that; above only is preferred implementation of the present invention for execution mode or embodiment; not in order to restriction the present invention; all within the spirit and principles in the present invention to any modification that the present invention did, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. alien frequencies isosystem measurement dispatching method under the LTE tdd mode is characterized in that, comprising:
Steps A: obtain the frequency tabulation of the different system of effective alien frequencies to be measured, in measuring GAP, calculate the measurement period that each the different system of effective alien frequencies to be measured frequency can be used in measurement, calculate each frequency measurement period number of repetition;
Step B: the frequency of the measurement period that number of repetition is minimum is arranged in to be measured in the GAP, other frequency measurement period that mark and this measurement period repeat, and the frequency of the measurement period that this number of repetition is minimum is removed
Step C: judged whether unlabelled measurement period? if, enter step D, otherwise, step e entered;
Step D: calculate unmarked measurement period number of repetition, return step B;
Step e: judge whether to exist and do not arrange measurement period? if enter step F; Otherwise, finish debug process;
Step F: switch to the next GAP of measurement, return step B.
2. alien frequencies isosystem measurement dispatching method according to claim 1 is characterized in that described steps A further comprises:
At first, carry out the synchronous acquisition process of TD-SCDMA frequency point cell, obtain the effective cell list to be measured of TD-SCDMA;
Then, divide the measurement period or the TD-SCDMA cell measurement period to be measured of LTE TDD sub-district to be measured, obtain the GSM cell measurement period;
At last, obtain the effective cell list to be measured of the different system of each alien frequencies, further obtain measurement period information; Comprise and calculate the measurement period number of repetition that each has divided measurement period and other frequencies.
3. as alien frequencies isosystem measurement dispatching method as described in the claim 2, it is characterized in that the described synchronous acquisition process of TD-SCDMA frequency point cell that carries out obtains the effective cell list to be measured of TD-SCDMA, comprising:
A2, initialization frequency counter Fn are 0;
A3, initialization sub-district counter i are 0;
A4, UE receive the data of Fn TD-SCDMA frequency 5ms in the tabulation in measuring GAP;
A5, use to measure in the tabulation i sub-district ID of Fn frequency and reception data and finish the TD-SCDMA timing and obtain synchronously; If synchronously Midamble position, TD-SCDMA sub-district is then stored in success, perhaps further TD-SCDMA cell history synchronizing information is labeled as availablely, no longer other TD-SCDMA sub-districts are done synchronously and obtain, enter steps A 9; Otherwise forward steps A 6 to;
Do A6, i=i+1 judge i＞largest cell number? be then to enter A7, otherwise return steps A 4;
Do A7, Fn=Fn+1 judge Fn＞maximum TD-SCDMA frequency number? be then to enter A8, otherwise return steps A 3;
A8, all TD-SCDMA of mark sub-district to be measured are invalid, perhaps further, are labeled as TD-SCDMA cell history synchronizing information unavailable; Enter steps A 9;
A9, obtain the effective cell list to be measured of TD-SCDMA.
4. as alien frequencies isosystem measurement dispatching method as described in the claim 3, it is characterized in that, described steps A 4 receives the data of Fn first 5ms of TD-SCDMA frequency in measuring GAP after, continue to receive the data of a plurality of 5ms in the follow-up again measurement GAP, and be added in the data that receive for the first time.
5. as alien frequencies isosystem measurement dispatching method as described in the claim 3, it is characterized in that, after described all TD-SCDMA of steps A 8 marks sub-district to be measured is invalid, start timer T-Sync, if timer T-Sync is overtime, then repeat the synchronous acquisition process of TD-SCDMA frequency point cell; Wherein, the overtime thresholding of described T-Sync is 5-20s.
6. as alien frequencies isosystem measurement dispatching method as described in the claim 3, it is characterized in that, before steps A 2, also comprise:
A1, at first judge that regularly whether synchronizing information is available in historical TD-SCDMA sub-district, if available, then go to steps A 9, otherwise enters A2.
7. as alien frequencies isosystem measurement dispatching method as described in the claim 3, it is characterized in that described steps A 1 judges that regularly whether synchronizing information is available in historical TD-SCDMA sub-district, comprising:
If enter connection mode from idle pulley, regularly synchronizing information is unavailable in then historical TD-SCDMA sub-district;
Perhaps
When under connection mode, receiving reconfigure command, if Serving cell does not change, then start regularly synchronizing information overtime timer T-HistorySync of historical TD-SCDMA sub-district, if T-HistorySync is overtime, regularly synchronizing information is unavailable in then historical TD-SCDMA sub-district; If Serving cell changes, regularly synchronizing information is unavailable in then historical TD-SCDMA sub-district; Wherein the overtime thresholding of T-HistorySync is 5-10s;
Perhaps
If withdraw from connection mode, regularly synchronizing information is unavailable in then historical TD-SCDMA sub-district.
8. as alien frequencies isosystem measurement dispatching method as described in the claim 2, it is characterized in that described obtaining the GSM cell measurement period comprises:
A10, judge in the tabulation of high-rise sending measuring whether have GSM sub-district to be measured, if there is no then finish this process; Otherwise enter steps A 11;
A11, obtain and measure the time zone of not filled among the GAP by any measurement period; Enter steps A 12;
A12, judge whether the GSM frequency points to be measured of measurement period to be divided is 0, if then finish this process, otherwise carry out steps A 13;
A13, judge measuring among the GAP not in the time zone of being filled by any measurement period whether have the continuum of length greater than GSM measurement period length, is then to enter steps A 14; Otherwise enter steps A 15;
The time zone of A14, a GSM measurement period length beginning from this time zone original position is as a GSM measurement period; Remove in the time zone that this time zone is not filled by any measurement period from measure GAP simultaneously; Further the GSM of measurement period to be divided frequency points to be measured is subtracted 1; Return steps A 12;
A15, each measurement period number of repetition of having divided measurement period and other frequencies of calculating; The time zone that the measurement period that number of repetition is minimum takies equally also is arranged to the measurement period of a GSM frequency to be measured; Return steps A 12.
As claim 1-8 arbitrary as described in alien frequencies isosystem measurement dispatching method, it is characterized in that, the measurement period that described each the effective frequency of steps A can be used in measurement is an equal time length, all use the measuring section of equal length for all frequencies to be measured, measurement period length is 1ms, 2ms or 3ms.
As claim 1-8 arbitrary as described in alien frequencies isosystem measurement dispatching method, it is characterized in that, measurement period that described each the effective frequency of steps A can be used in measurement is an equal time length not, comes discriminating measurement section time span according to the employed access technology in the sub-district of frequency to be measured; Wherein, measurement period length equals the shared time span of each frequency test sample book point and adds radio frequency change-over time.
11. as claim 1-8 arbitrary as described in alien frequencies isosystem measurement dispatching method, it is characterized in that, among the described step B,, then select a measurement period at random or according to the frequency degree of priority if a plurality of frequency measurement period number of repetition is all identical.
12. alien frequencies isosystem measurement dispatching device is characterized in that under the LTE tdd mode, comprising:
With measurement sample acquisition module, finish for the timing of measuring sub-district to be measured in the tabulation and obtain synchronously and according to the definite measurement of sync bit sample point time location synchronously;
The measurement period acquisition module according to effective frequency tabulation to be measured, calculates the measurement period that each effectively measures frequency, and the number of repetition of each measurement period and other frequency measurement period;
Measure scheduler module, according to synchronously and measure measurement sample timing information that the sample acquisition module obtains and finish measurement scheduling for sub-district to be measured, be specially, the measurement period that number of repetition is minimum is arranged in current measurement GAP, to be labeled as with other frequency measurement period that this measurement period repeats and to be arranged in current measurement GAP, with other measurement period duplicate message deletions of this measurement period place frequency, all measurement period of this frequency are labeled as arrange simultaneously; Judge whether that measurement period quantity is 0 and not arrange measurement period quantity be not 0, is then to continue scheduling; Otherwise judge whether that all measurement period have been arranged,, then finish scheduling, continue scheduling otherwise go to the next GAP of measurement if be arranged.
13. as alien frequencies isosystem measurement dispatching device as described in the claim 12, it is characterized in that, described synchronously and measure in the sample acquisition module, also comprise:
Timer module if failure is obtained in the timing of all TD-SCDMA frequency point cells, then starts timer T-Sync, if timer T-Sync is overtime, then repeats the synchronous acquisition process of TD-SCDMA frequency point cell; Wherein, the overtime thresholding of described T-Sync is 5-20s.
14. as alien frequencies isosystem measurement dispatching device as described in the claim 12, it is characterized in that, also comprise:
Measure the tabulation acquisition module, be used for obtaining effective frequency tabulation to be measured from the measurement tabulation that network issues.
15. alien frequencies isosystem measurement dispatch terminal is characterized in that under the LTE tdd mode, comprises the arbitrary described measurement dispatching device of claim 12-14, and:
Measurement module is finished the measurement of the sub-district to be measured that is scheduled, and specifically finishes the measurement of received signal code power RSCP, Reference Signal Received Power RSRP and received signal intensity indication RSSI, and gives measured value with measurement result and handle and reporting module;
Measured value is handled and reporting module, and measured value is carried out reporting high level after the reprocessing, finishes measurement;
The RF module, be used to finish RF is provided with and from air interface according to the reception data are set, and data are offered synchronously and measure the sample acquisition module.
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| PCT/CN2010/074043 WO2011150577A1 (en) | 2010-06-04 | 2010-06-18 | Measuring and scheduling method, device and terminal for inter-frequency and inter-system in long term evolution (lte) connection mode |
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| CN111050365A (en) * | 2019-11-27 | 2020-04-21 | 京信通信***（中国）有限公司 | Terminal measuring method, device, computer equipment and storage medium |
| CN113498617A (en) * | 2020-01-20 | 2021-10-12 | 北京小米移动软件有限公司 | Data transmission method, device, communication equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011150577A1 (en) | 2011-12-08 |
| CN102271358B (en) | 2016-05-04 |
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