CN101635967A - Measuring method for WCDMA neighboring area under TD-SCDMA mode - Google Patents
Measuring method for WCDMA neighboring area under TD-SCDMA mode Download PDFInfo
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- CN101635967A CN101635967A CN200810132295A CN200810132295A CN101635967A CN 101635967 A CN101635967 A CN 101635967A CN 200810132295 A CN200810132295 A CN 200810132295A CN 200810132295 A CN200810132295 A CN 200810132295A CN 101635967 A CN101635967 A CN 101635967A
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Abstract
The invention discloses a measuring method for a WCDMA neighboring area under a TD-SCDMA mode. In the method, a dormant TD-SCDMA subframe is used to receive the data of the WCDMA neighboring area specified by the network side in an idle state to carry out measurement of the WCDMA neighboring area; an idle window of the TD-SCDMA subframe is used to receive the data of the WCDMA neighboring area specified by the network side in a connection state or an HSDPA state to carry out the measurement of the WCDMA neighboring area; the position of a frame header of the WCDMA neighboring area in the TD-SCDMA connection state or the HSDPA state can be quickly determined to obtain an RSCP result; the real-time requirement of protocols is met; the measurement of the WCDMA neighboring area is feasible in the TD-SCDMA mode; and the switch between TD-SCDMA and WCDMA systems is realized.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of TD-SCDMA (TimeDivision-Synchronous Code Division Multiple Access, the code division multiple access that time-division is synchronous) under the pattern at the method for measurement of WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA)) adjacent area.
Background technology
Patent " a kind of starting-up method of mode mobile terminal " " A METHOD FOR STARTINGTD-SCDMA AND GSM DUAL MODE MOBILE TERMINAL (WO2007147305) " discloses the starting-up method of a kind of TD-SCDMA and WCDMA mode mobile terminal, this method is applicable to various standby modes, adopted the settling mode of starting shooting in order when the two standby of TD-SCDMA and two kinds of standards of WCDMA, that can avoid causing when start between two kinds of standards interferes with each other.
Patent (R) " a kind of closedown method of mode mobile terminal " " CALLING METHOD OFTD-SCDMA AND GSM DUAL-MODE MOBILE TERMINAL (WO2007143893) " discloses the closedown method of a kind of TD-SCDMA and WCDMA mode mobile terminal, this method is applicable to various standby modes, adopted the settling mode that shuts down in order when TD-SCDMA and following pair of standby of two kinds of standards of WCDMA, that can avoid between two kinds of standards causing when shutdown interferes with each other.
Yet, still do not have clear and definite codes and standards to making regulation at the method for measurement of WCDMA adjacent area under the TD-SCDMA pattern at present.
Summary of the invention
The invention provides under the TD-SCDMA pattern method of measurement at the WCDMA adjacent area, the data that receive the WCDMA adjacent area of network side appointment by the TD-SCDMA subframe of using dormancy under idle condition are carried out the measurement of WCDMA adjacent area, the data of the WCDMA adjacent area of the idle window reception network side appointment of use TD-SCDMA subframe are carried out the measurement of WCDMA adjacent area under connection status or high speed downlink packet access state, have effectively satisfied the requirement of real-time.
The inventive method comprises:
At the method for measurement of WCDMA adjacent area, it is characterized in that under a kind of TD-SCDMA pattern, under idle condition, utilize the TD-SCDMA subframe of dormancy to receive the data of the WCDMA adjacent area of network side appointment; Under connection status or high speed downlink packet access state, utilize the idle window of TD-SCDMA subframe to receive the data of the WCDMA adjacent area of network side appointment; Specifically comprise step:
The data of A, the described WCDMA of reception adjacent area are carried out slot synchronization and are handled;
B, number determine the assist in synchronization sequence set of this sub-district according to the scrambler of described WCDMA adjacent area;
C, under connection status or high speed downlink packet access state, receive the data of a time slot of described WCDMA adjacent area according to slot synchronization point, it is relevant with each assist in synchronization sequence in the assist in synchronization sequence set, if the timeslot number of determining according to the peak value of correlated results is one, then determine the appearance position of WCDMA frame head with this, change step e, otherwise, next step carried out;
D, if the timeslot number determined is two, then receive the data of a time slot of described WCDMA adjacent area once more, two timeslot numbers determining are added that respectively twice reception timeslot number at interval draws two kinds of possibilities of this timeslot number that receives data, the assist in synchronization sequence that the data of this reception and these two kinds of possible timeslot numbers are corresponding is relevant, determine the timeslot number that this receives data according to the peak value of correlated results, determine the appearance position of WCDMA frame head according to this timeslot number, carry out next step;
E, get ten continuous sign computation received signal code powers that obtain after the Common Pilot Channel despreading.
Further, under connection status, terminal utilizes two idle time slots in the TD-SCDMA subframe as idle window; Under the high speed downlink packet access state, terminal utilizes 0 idle in TD-SCDMA subframe time slot and descending pilot frequency time slot as idle window.
Further, also comprise step before the described steps A:
Receive the measurement neighboring BS information that network side issues, wherein specified the scrambler number and the frequency of the WCDMA adjacent area of this measurement.
Further, the detailed process of described slot synchronization is:
The length that receives described WCDMA adjacent area is the data of 1 time slot+256 chips, itself and local Primary Synchronisation Code is carried out relevant, obtains the correlated results of 1 time slot, determines the slot synchronization point according to the peak value of correlated results.
Further, under the idle condition, determine that the detailed process of WCDMA frame head position is as follows:
Receive the data of 15 time slots of described WCDMA adjacent area according to slot synchronization point, from each time slot head, take out 256 chips and constitute sequence A;
Sequence A is relevant successively with 15 assist in synchronization sequences of described WCDMA adjacent area, and sliding step is 256 chips, determines the appearance position of WCDMA frame head, execution in step E according to the peak value of 15 correlated results.
Further, repeated execution of steps E twice, and twice received signal code power measurement result's obtaining average is reported high level.
Further, in the described step e, according to fixing channel code and the main scrambler despreading Common Pilot Channel of using of Common Pilot Channel, ten continuous sign computation received signal code powers that utilize despreading to obtain.
The present invention carries out the measurement of WCDMA adjacent area by the data that the TD-SCDMA subframe of using dormancy under idle condition receives the WCDMA adjacent area of network side appointment, the data of the WCDMA adjacent area of the idle window reception network side appointment of use TD-SCDMA subframe are carried out the measurement of WCDMA adjacent area under connection status or HSDPA state, can determine under TD-SCDMA connection status/HSDPA state very efficiently that the frame head position of WCDMA adjacent area obtains the RSCP value, satisfied the real-time requirement of agreement, make under the TD-SCDMA pattern WCDMA nearby region measurement is become feasible, make to switch between TD-SCDMA and WCDMA system to be achieved.
Description of drawings
Fig. 1 is at the flow chart of the method for measurement of WCDMA adjacent area under the TD-SCDMA pattern of the present invention;
Fig. 2 receives the schematic diagram of each step desired data of the present invention for the present invention utilizes the idle time slot of TD-SCDMA under TD-SCDMA connection status/HSDPA state;
Fig. 3 is the idle window schematic diagram in the TD-SCDMA subframe under TD-SCDMA connection status/HSDPA state;
Fig. 4 be in the WCDMA frame with the corresponding data length schematic diagram of idle window shown in Figure 3.
Embodiment
Major technique design of the present invention is to carry out the measurement of WCDMA adjacent area by the data of the WCDMA adjacent area of the TD-SCDMA subframe reception network side appointment of using dormancy under idle condition, the data of using the idle window of TD-SCDMA subframe to receive the WCDMA adjacent area of network side appointment under connection status or high speed downlink packet access state are carried out the measurement of WCDMA adjacent area, thereby have guaranteed under the TD-SCDMA pattern realization at the WCDMA nearby region measurement.
Below in conjunction with each accompanying drawing specific implementation process of the present invention is further described in detail.
UE in the TD-SCDMA system (subscriber equipment) supports the measurement of 32 FDD (Frequency Division Duplexing (FDD)) sub-district at most, and this sub-district of 32 is up to 3 FDD (Frequency Division Duplexing (FDD)) frequency.
The measuring period of UE in the TD-SCDMA system under connection status/HSDPA (high speed downlink packet access) state is 480ms, and the UE in the TD-SCDMA system is as shown in the table the measuring period under idle (idle) state:
| DRX (discontinuous reception) s of length of the cycle unit | Measuring period (DRX number of cycles) s of unit |
| ??0.08 | ??0.64(4) |
| ??0.16 | ??1.28(4) |
| ??0.32 | ??1.28(2) |
| ??0.64 | ??1.28(1) |
| ??1.28 | ??1.28(1) |
| ??2.56 | ??2.56(1) |
| ??5.12 | ??5.12(1) |
See also Fig. 1, this figure be under the TD-SCDMA pattern of the present invention at the general flow chart of the method for measurement of WCDMA adjacent area, its main implementation procedure is:
The length that step 11, UE receive the WCDMA adjacent area of this measurement is the data of 1 time slot+256chip, with itself and local P-SCH (synchronously main) sign indicating number (256chip, whole TD-SCDMA network uses same P-SCH sign indicating number) be correlated with, obtain the correlated results of 1 time slot (2560chip), determine the slot synchronization point according to the peak value of correlated results.
Under the idle condition, UE can directly adopt nearby region measurement frame synchronization algorithm under the WCDMA pattern to determine the appearance position of WCDMA frame head, need to receive 1 frame WCDMA data, and under connection status/HSDPA state, owing to there is not enough radio frequency free time, therefore can not directly utilize the frame synchronization algorithm of nearby region measurement under the WCDMA pattern, need finish frame synchronization according to the new algorithm of the design of the time slot idle condition in the TD-SCDMA subframe.
Whether step 15, UE determining step 14 have carried out twice, if, carry out next step, otherwise, step 14 returned.
Twice received signal code power measurement result's that step 16, UE will obtain average reports high level.
In above-mentioned flow process, when UE is in idle condition following time, the mode of configuration WCDMA nearby region measurement is finished the measurement of the RSCP of WCDMA adjacent area on the TD-SCDMA subframe of the present invention's employing dormancy in paging interval, need the time of several frames to finish, can satisfy the requirement of following measuring period of aforementioned free state fully.
And under connection status/HSDPA state, the mode of the measurement of configuration WCDMA adjacent area is finished the measurement of the RSCP of WCDMA adjacent area on the idle time slot of the present invention's employing in the TD-SCDMA subframe.
At first there be situation analyzed in the idle time slot in the TD-SCDMA subframe under connection status/HSDPA state below, suppose 2 transmission time slots of TD-SCDMA subframe support, ts0 is used to receive BCH (broadcast channel) and RSCP measures, at different TD-SCDMA business, the idle time slot in the TD-SCDMA subframe exists situation as follows respectively:
1) for the speech business of 12.2k and 64k, normally therefore 1 time receiving crack and 1 time slot exist 4 idle time slots;
2) for the downlink business of 144k, normally therefore 2 time receiving cracks and 1 time slot exist 3 idle time slots;
3) for the downlink business of 384k, normally therefore 3 time receiving cracks and 1 time slot exist 2 idle time slots;
4), when peak rate, there is not idle time slot for the HSDPA business.
Configuration WCDMA nearby region measurement at first will be considered the normal transmitting-receiving of TD-SCDMA business under connection status/HSDPA state; Will consider the intrasystem measurement configuration of TD-SCDMA then, the measurement of relevant TD-SCDMA adjacent area RSCP need be configured on the ts0, and the measurement of the relevant professional ISCP of TD-SCDMA (Interference Signal Code Power) is carried out on business time-slot.In sum, the allocation position of WCDMA measurement: consider configuration WCDMA nearby region measurement on above-mentioned idle time slot first; Second consider to abdicate as early as possible the TS0 time slot, configuration WCDMA nearby region measurement has meaning to the WCDMA nearby region measurement under the HSDPA state very much.
See also Fig. 2, this figure is that the present invention utilizes the idle time slot of TD-SCDMA to receive the schematic diagram of each step desired data of the present invention under connection status/HSDPA state, respectively each step is illustrated below.
In the step of slot synchronization, the data that need the 1 time slot+256chip length of reception, be 0.66+0.013=0.673ms approximately, add frequency switching time, be no more than 1 TD-SCDMA slot length (864/1.28M=0.675ms), hence one can see that, can finish slot synchronization 1 time with 1 TD-SCDMA time slot.
In the step of frame synchronization, need to receive the WCDMA data of 2560chip, the idle window that utilizes 2 time slots to constitute under the connection status can be received desired data 1 time, 1 frame is finished frame synchronization 1 time; Utilize TS0+Dwpts (descending pilot frequency time slot) can receive desired data 1 time under the HSDPA state, 1 frame is finished frame synchronization 1 time.
In the step that RSCP calculates, need to receive 10 symbol related datas, length is the data of 1 WCDMA slot length, be 10/15ms=0.66ms approximately, add frequency switching time, be no more than the length (0.675ms) of 1 TD-SCDMA time slot, need double sampling, so this step needs two TD-SCDMA time slots because RSCP calculates.
Total the above, remove the HSDPA state, under connection status, have 2 idle time slots on each TD-SCDMA subframe at least, therefore need 3 frames can finish the measurement of all WCDMA adjacent areas under 1 frequency, approximately be 96 frames a measuring period (480ms), is the measurement that can finish the WCDMA adjacent area fully; And under the HSDPA state, consider to measure in the TS0+DwPTS position, need 3 frames can finish the measurement of all WCDMA adjacent areas under 1 frequency.In a measuring period (480ms), ts0 at first is used to receive the BCH of Serving cell and adjacent area, carries out common frequency measurement simultaneously; Secondly ts0 also is used to dispose the intrasystem different-frequency measure of TD-SCDMA; Consider nearby region measurement at last at ts0 configuration WCDMA.Tens frames that have that are used for the WCDMA measurement under the rough estimate HSDPA pattern can be measured to finish WCDMA completely.
Illustrated reaching the frame synchronization algorithm that adopts under connection status/HSDPA state under the idle condition respectively below.
Under the idle condition, determine that the detailed process of WCDMA frame head position is as follows:
1) receives the data of 15 time slots of the WCDMA adjacent area of this measurement according to slot synchronization point, from each time slot head, take out 256 chips and constitute sequence A;
2) sequence A is relevant successively with 15 assist in synchronization sequences of the WCDMA adjacent area of this measurement, the step=256chip that at every turn slides obtains 15 correlated results;
3) determine the appearance position of WCDMA frame head according to the peak value of 15 correlated results.
Figure 3 shows that the idle window schematic diagram in the TD-SCDMA subframe under connection status/HSDPA state, Figure 4 shows that in the WCDMA frame and the corresponding data length schematic diagram of idle window shown in Figure 3, the idle window in the TD-SCDMA subframe is analyzed as follows:
Under the connection status, certainly exist the idle window that constitutes by 2 idle time slots in the TD-SCDMA subframe, the big or small Zt=1728TDchip of idle window, being folded in the WCDMA frame approximately is 5184wchip, be Zw=5184wchip, comprise 2～3 WCDMA time slot heads at least.
Under the HSDPA state, adopt TS0+Dwpts idle in the TD-SCDMA subframe to carry out WCDMA and measure as idle window, i.e. Zt=992TDchip, it approximately is 2976wchip that folding is synthesized in the WCDMA frame, promptly Zw=2976wchip comprises 2 time slot heads at least.
Therefore, under connection status/HSDPA state, on the idle window of 1 TD-SCDMA subframe, must receive 1 complete WCDMA time slot.Because the WCDMA frame length is 10ms, is 5ms and the TD-SCDMA subframe is long, so after a TD-SCDMA subframe is received the WCDMA data of M time slot, in an ensuing TD-SCDMA subframe, can receives the WCDMA data of M+7 time slot.Thus, under connection status/HSDPA state, determine that WCDMA frame head position can adopt following algorithm:
1) receives the data of a time slot of the WCDMA adjacent area of this measurement according to slot synchronization point, it is relevant with each assist in synchronization sequence in this sub-district assist in synchronization sequence set, if the timeslot number of determining according to the peak value of correlated results is one, then determine the appearance position of WCDMA frame head with this, otherwise, carry out next step;
2) if the timeslot number of determining is two, then receive the data of a time slot of this WCDMA adjacent area once more according to slot synchronization point, two timeslot numbers determining are added that respectively twice reception timeslot number at interval draws two kinds of possibilities of this timeslot number that receives data, the assist in synchronization sequence that the data of this reception and these two kinds of possible timeslot numbers are corresponding is relevant, determine the timeslot number that this receives data according to the peak value of correlated results, determine the appearance position of WCDMA frame head according to this timeslot number.
If consider repetition strategies, can carry out following improvement:
At first utilize M TD-SCDMA subframe to receive M WCDMA data, M is the integer greater than 2, carries out the 1st) step, behind comprehensive M the result, judge whether to carry out the 2nd according to the result) step;
If carry out, utilize M TD-SCDMA subframe to receive M WCDMA data afterwards once more, carry out the 2nd) step, comprehensive M result judges that obtaining timeslot number gets final product.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (7)
1, under a kind of TD-SCDMA pattern at the method for measurement of WCDMA adjacent area, it is characterized in that, under idle condition, utilize the TD-SCDMA subframe of dormancy to receive the data of the WCDMA adjacent area of network side appointment; Under connection status or high speed downlink packet access state, utilize the idle window of TD-SCDMA subframe to receive the data of the WCDMA adjacent area of network side appointment; Specifically comprise step:
The data of A, the described WCDMA of reception adjacent area are carried out slot synchronization and are handled;
B, number determine the assist in synchronization sequence set of this sub-district according to the scrambler of described WCDMA adjacent area;
C, under connection status or high speed downlink packet access state, receive the data of a time slot of described WCDMA adjacent area according to slot synchronization point, its each assist in synchronization sequence with sub-district assist in synchronization sequence set is relevant, if the timeslot number of determining according to the peak value of correlated results is one, then determine the appearance position of WCDMA frame head with this, change step e, otherwise, next step carried out;
D, if the timeslot number determined is two, then receive the data of a time slot of described WCDMA adjacent area once more, two timeslot numbers determining are added that respectively twice reception timeslot number at interval draws two kinds of possibilities of this timeslot number that receives data, the assist in synchronization sequence that the data of this reception and these two kinds of possible timeslot numbers are corresponding is relevant, determine the timeslot number that this receives data according to the peak value of correlated results, determine the appearance position of WCDMA frame head according to this timeslot number, carry out next step;
E, get ten continuous sign computation received signal code powers that obtain after the Common Pilot Channel despreading.
2, the method for claim 1 is characterized in that, under connection status, terminal utilizes two idle time slots in the TD-SCDMA subframe as idle window; Under the high speed downlink packet access state, terminal utilizes 0 idle in TD-SCDMA subframe time slot and descending pilot frequency time slot as idle window.
3, the method for claim 1 is characterized in that, also comprises step before the described steps A:
Receive the measurement neighboring BS information that network side issues, wherein specified the scrambler number and the frequency of the WCDMA adjacent area of this measurement.
4, the method for claim 1 is characterized in that, the detailed process of described slot synchronization is:
The length that receives described WCDMA adjacent area is the data of 1 time slot+256 chips, itself and local Primary Synchronisation Code is carried out relevant, obtains the correlated results of 1 time slot, determines the slot synchronization point according to the peak value of correlated results.
5, the method for claim 1 is characterized in that, under the idle condition, determines that the detailed process of WCDMA frame head position is as follows:
Receive the data of 15 time slots of described WCDMA adjacent area according to slot synchronization point, from each time slot head, take out 256 chips and constitute sequence A;
Sequence A is relevant successively with 15 assist in synchronization sequences of described WCDMA adjacent area, and sliding step is 256 chips, determines the appearance position of WCDMA frame head, execution in step E according to the peak value of 15 correlated results.
6, as claim 1 or 5 described methods, it is characterized in that repeated execution of steps E twice, twice received signal code power measurement result's obtaining average is reported high level.
7, the method for claim 1 is characterized in that, in the described step e, according to fixing channel code and the main scrambler despreading Common Pilot Channel of using of Common Pilot Channel, ten continuous sign computation received signal code powers that utilize despreading to obtain.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101322952A CN101635967B (en) | 2008-07-24 | 2008-07-24 | Measuring method for WCDMA neighboring area under TD-SCDMA mode |
| PCT/CN2009/072821 WO2010006559A1 (en) | 2008-07-17 | 2009-07-17 | Method for measuring adjacent areas |
| CA2915864A CA2915864C (en) | 2008-07-17 | 2009-07-17 | A method for measuring adjacent areas |
| EP09797406.7A EP2306771B1 (en) | 2008-07-17 | 2009-07-17 | Method for measuring adjacent areas |
| US13/054,762 US8724594B2 (en) | 2008-07-17 | 2009-07-17 | Method for measuring adjacent areas |
| CA2731140A CA2731140C (en) | 2008-07-17 | 2009-07-17 | A method for measuring adjacent areas |
| US14/196,899 US9398502B2 (en) | 2008-07-17 | 2014-03-04 | Method for measuring adjacent areas |
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| CN2008101322952A CN101635967B (en) | 2008-07-24 | 2008-07-24 | Measuring method for WCDMA neighboring area under TD-SCDMA mode |
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| CN101635967B CN101635967B (en) | 2012-02-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103181209A (en) * | 2010-08-13 | 2013-06-26 | 捷讯研究有限公司 | Methods and apparatus to limit reporting of neighbor cell measurements |
| CN103906182A (en) * | 2012-12-28 | 2014-07-02 | 联芯科技有限公司 | Method and system for searching for cells with pipeline combination |
| CN106851704A (en) * | 2017-02-16 | 2017-06-13 | 上海白虹软件科技股份有限公司 | A kind of method that WCDMA system carries out multiple cell trace scheduling |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060007882A (en) * | 2004-07-22 | 2006-01-26 | 주식회사 스카이텔레텍 | Method for mode change between systems in multi-mode mobile phone in idle state |
| EP1782551B1 (en) * | 2004-07-30 | 2016-10-05 | CommScope Technologies LLC | Power control in a local network node (lnn) |
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2008
- 2008-07-24 CN CN2008101322952A patent/CN101635967B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103181209A (en) * | 2010-08-13 | 2013-06-26 | 捷讯研究有限公司 | Methods and apparatus to limit reporting of neighbor cell measurements |
| CN103906182A (en) * | 2012-12-28 | 2014-07-02 | 联芯科技有限公司 | Method and system for searching for cells with pipeline combination |
| CN103906182B (en) * | 2012-12-28 | 2017-03-22 | 联芯科技有限公司 | Method and system for searching for cells with pipeline combination |
| CN106851704A (en) * | 2017-02-16 | 2017-06-13 | 上海白虹软件科技股份有限公司 | A kind of method that WCDMA system carries out multiple cell trace scheduling |
| CN106851704B (en) * | 2017-02-16 | 2021-02-09 | 上海白虹软件科技股份有限公司 | Method for WCDMA system to carry out multi-cell tracking scheduling |
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Effective date of registration: 20151216 Address after: Dameisha Yantian District of Shenzhen City, Guangdong province 518085 Building No. 1 Patentee after: SHENZHEN ZTE MICROELECTRONICS TECHNOLOGY CO., LTD. Address before: 518057 Nanshan District Guangdong high tech Industrial Park, South Road, science and technology, ZTE building, Ministry of Justice Patentee before: ZTE Corporation |
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Application publication date: 20100127 Assignee: Xi'an Chris Semiconductor Technology Co. Ltd. Assignor: SHENZHEN ZTE MICROELECTRONICS TECHNOLOGY CO., LTD. Contract record no.: 2019440020036 Denomination of invention: Measuring method for WCDMA neighboring area under TD-SCDMA mode Granted publication date: 20120208 License type: Common License Record date: 20190619 |