CN101841829B - Inter-system measuring method and user terminal - Google Patents
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Abstract
The invention relates to the field of communication and discloses an inter-system measuring method and a user terminal. The method comprises the following steps of: selecting an idle area of a service frame which is in a GSM connection mode for receiving a TS0 (0 time slot) midamble (training sequence code) area signal of a TD-SCDMA system; if the position of the useful information of the training sequence code is totally in the selected idle area, saving the useful information of the received training sequence code; if the position of the useful information of the training sequence code is not totally in the selected idle area, sliding a GSM frame and continuously receiving the training sequence code in the TD-SCDMA system by using the selected idle area till the position of the useful information of the training sequence code is totally in the selected idle area; and finishing the process of measuring the TD-SCDMA system according to the saved useful information of the training sequence code. Measurement on the TD-SCDMA system can be finished on the premise of not influencing the GSM system service.
Description
Technical field
The present invention relates to the communications field, particularly under the gsm system pattern to the measuring technique of TD-SCDMA system.
Background technology
Various types of wireless communication systems have appearred in the continuous development along with the communication technology, like global system for mobile communications (Global System for Mobile communication; Be called for short " GSM "), WCDMA (Wideband Code Division Multiple Access is called for short " WCDMA "); TD SDMA (Time Division Synchronous Code Division MultipleAccess is called for short " TD-SCDMA "), micro-wave access to global intercommunication (WorldwideInteroperability for Microwave Access; Be called for short " WiMAX "); Long Term Evolution (LongTerm Evolution is called for short " LTE "), bluetooth; China Mobile multimedia broadcasting (China MobileMultimedia Broadcasting is called for short " CMMB ") or the like.
Wherein, The subframe structure of TD-SCDMA is as shown in Figure 1; The TD-SCDMA frame of 1 10ms can be divided into the subframe of 2 5ms, and the subframe of each 5ms comprises 7 time slots (time slot 0 to time slot 6) and descending pilot frequency time slot DwPTS, protects GP, uplink pilot time slot UpPTS at interval.DwPTS receives the downlink pilot frequency channel (Downlink Pilot Channel is called for short " DwPCH ") that is used for down-going synchronous, and the burst structure of DwPCH is as shown in Figure 2.Measuring process to the TD-SCDMA system is exactly the signal reception in TS0 (time slot 0) midamble (training sequence) zone to the TD-SCDMA system and the process of analyzing in fact; That is to say; Measure the TD-SCDMA system; Only need partly receive the TD signal to the midamble sign indicating number of TS0 and receive and handle, midambel sign indicating number partial-length is 144chips, wherein reality 128chip usefully.Keep the synchronous of TD-SCDMA system, only need partly receive and handle dwpts, the dwpts partial-length be 96chips.
The GSM frame structure is as shown in Figure 3, and the time span of 1 GSM frame is 60/13ms, and the systemic circulation of GSM frame is that every 26x51x2048 frame constitutes a systemic circulation, and 1 GSM time slot has 156.25 bits, and promptly a GSM frame has 1250 bits.Speech business frame in the gsm system, GPRS (General Packet Radio Service; Abbreviation " GPRS ") the GSM evolution scheme of traffic frame, enhancing data rate (Enhanced Data Rates for GSM Evolution is called for short " EDGE ") traffic frame is the multi-frame structure of GSM frame.Such as the speech business in the gsm system is 26 multi-frame structures under connection mode; Multi-frame structure under the GPRS/EDGE is 52 multi-frames (as shown in Figure 4, B0 to B11 is made up of 4 GSM frames respectively, and x is an idle frame); See on the full rate in 52 frames and can see that per 12 PDCH (Packet Data Channel) are arranged, after 1 idle frame is arranged, promptly 13 frames are a bulk of; 52 multi-frames can be made up of that (half rate is because the difference of its coded system 4 13 frames; Corresponding to 52 multi-frame structures, a lot of empty frames are arranged, but be to correspond on 52 multi-frames equally).
At present, many terminals (like mobile phone) all can be supported two kinds of wireless systems (or wireless standard), as not only supporting GSM but also support TD-SCDMA.The terminal of two kinds of wireless systems of this support is commonly referred to dual-mode terminal.Support that about portable terminal the technical scheme of multiple wireless system can be 11136547 United States Patent (USP) referring to the patent No..
Support the user terminal of two kinds of wireless systems between different systems, to carry out freely changing through measurement, the switching that different system is initiated.At present, support that the user terminal of two kinds of wireless systems generally all is different system to be measured being under the idle pulley.Such as user terminal utilizes the measurement of the chip completion TD-SCDMA system of TD-SCDMA standard when being in the idle pulley of gsm system.
Yet inventor of the present invention finds that the method for measurement of above-mentioned different system needs user terminal to be in the idle pulley of gsm system, that is to say, if user terminal can't be accomplished the measurement to the TD-SCDMA system not influencing under the professional prerequisite of gsm system.
Summary of the invention
The object of the present invention is to provide a kind of inter-system measuring method and user terminal, make, can measure the TD-SCDMA system not influencing under the professional prerequisite of gsm system.
For solving the problems of the technologies described above, execution mode of the present invention provides a kind of inter-system measuring method, comprises following steps:
A is in a clear area of the selected current business frame of user terminal under the connection mode of global system for mobile communications GSM, and the length of selected clear area is at least 526QBC, and wherein, 1QBC is the length of 1/4 bit;
The selected clear area of B1 user terminal utilization receives the training sequence code in the TD SDMA TD-SCDMA system; If selected clear area intactly receives the useful information of training sequence code, then user terminal is stored the useful information of the training sequence code that receives; If selected clear area does not intactly receive the useful information of training sequence code, then GSM frame of user terminal slip repeats this step, and wherein, the useful information of training sequence code is for measuring the required information of TD-SCDMA system;
The C user terminal is accomplished the measuring process of TD-SCDMA system according to the useful information of stored training sequence code.
Execution mode of the present invention also provides a kind of user terminal, comprises:
Select module, be used for a clear area of selected current business frame when being in the connection mode of global system for mobile communications GSM, the length of selected clear area is at least 526QBC, and wherein, 1QBC is the length of 1/4 bit;
Receiver module is used for utilizing the training sequence code of selecting the selected clear area of module to receive TD SDMA TD-SCDMA system;
Memory module is used for the useful information of the training sequence code that receives is stored, and wherein, the useful information of training sequence code is for measuring the required information of TD-SCDMA system;
Judge module is used to judge whether the selected clear area of receiver module utilization intactly receives the useful information of training sequence code, if intactly receive the useful information of training sequence code, then triggers memory module and stores; If judge the useful information that does not intactly receive training sequence code; Then indicate GSM frame of receiver module slip; Continue to utilize and select the selected clear area of module to receive the training sequence code in the TD-SCDMA system, intactly receive the useful information of training sequence code until the selected clear area of receiver module utilization;
Measurement module is used for the useful information according to memory module stored training sequence code, accomplishes the measuring process of TD-SCDMA system.
Embodiment of the present invention compared with prior art, the main distinction and effect thereof are:
The clear area of traffic frame is used to receive TS0 (0 time slot) midamble (training sequence code) regional signal of TD-SCDMA system under the selected GSM connection mode; If selected clear area is intactly dropped in the useful information position of training sequence code; Then the useful information of the training sequence code that receives is stored; Otherwise a GSM frame slides; Continue to utilize selected clear area to receive the training sequence code in the TD-SCDMA system, intactly drop on selected clear area until the useful information position of training sequence code.According to the useful information of stored training sequence code, accomplish the measuring process of TD-SCDMA system.Because in fact the process that the TD-SCDMA system is measured is exactly that the regional signal of the TS0 midamble of TD-SCDMA system is received processing; So the TS0 midamble regional signal that the clear area that utilizes traffic frame under the GSM connection mode receives the TD-SCDMA system is (behind selected clear area; In 13 GSM frames; At least once the useful information of training sequence code intactly drops in the selected clear area in the TD-SCDMA system; The selection of clear area and relevant proof will be described in more detail below), can accomplish measurement not influencing under the professional prerequisite of gsm system to the TD-SCDMA system.And, owing to can obtain the measuring machine meeting of a TD-SCDMA system in per 13 GSM frames at most, so can not cause long problem measuring period of TD-SCDMA system yet.
Further; User terminal also need utilize selected clear area to receive the descending pilot frequency time slot dwpts signal in the TD-SCDMA system; If selected clear area intactly receives descending pilot frequency time slot signal, then user terminal is stored the descending pilot frequency time slot signal that receives; If selected clear area does not intactly receive descending pilot frequency time slot signal; User terminal GSM frame that slides then; Continue to utilize selected clear area to receive the descending pilot frequency time slot signal in the TD-SCDMA system; Intactly drop on selected clear area until descending pilot frequency time slot signal,, accomplish the measuring process of TD-SCDMA system according to the useful information and the descending pilot frequency time slot signal of stored training sequence code.Because the reception processing to dwpts signal in the TD-SCDMA system can be kept the synchronous of user terminal and TD-SCDMA system; Therefore utilize selected clear area to receive the descending pilot frequency time slot dwpts signal in the TD-SCDMA system, can further guarantee the measurement accuracy of TD-SCDMA system.
Further, the length of selected clear area is greater than 526QBC.Because 0 time slot training sequence code length of TD-SCDMA system is 144chip, and reality 128chip usefully is converted into QBC, is 109QBC.And can slide all over a TD frame 13 continuous GSM frame the insides in order to guarantee; The length that then needs 5000/12=417 (QBC); When so the length in selected clear area is at least 526QBC (417+109=526); Can guarantee that in 13 GSM frames, once the useful information of training sequence code intactly drops in the selected clear area in the TD-SCDMA system.And in practical application; If the length of selected clear area is greater than 526QBC; Then in 13 frames, have probably and surpass 1 time measuring machine meeting; Therefore the length of selected clear area is set to greater than 526QBC, can make user terminal can in the shorter time, accomplish the measurement of TD-SCDMA system.
Further, the current business frame can be speech business frame, GPRS frame or the EDG E frame in the gsm system.Because in prior protocols; Speech business frame, GPRS frame and EDGE frame all satisfy the integral multiple structure of 13 GSM frames; Therefore the present invention is applied in speech business, gprs service or the EDGE business in the gsm system, can further guarantee realization feasibility of the present invention.
Description of drawings
Fig. 1 is the subframe structure sketch map according to TD-SCDMA in the prior art;
Fig. 2 is the burst structure sketch map according to the DwPCH of TD-SCDMA in the prior art;
Fig. 3 is according to GSM frame structure sketch map in the prior art;
Fig. 4 is according to the multi-frame structure sketch map under the GPRS/EDGE in the prior art;
Fig. 5 is the inter-system measuring method flow chart according to first embodiment of the invention;
Fig. 6 is the GPRS/EDGE multi-frame structure sketch map according to 1 ascending time slot of 4 descending time slots in the prior art;
Fig. 7 is the GPRS/EDGE multi-frame structure sketch map according to 2 ascending time slots of 3 descending time slots in the prior art;
Fig. 8 is the GPRS/EDGE multi-frame structure sketch map according to 3 ascending time slots of 2 descending time slots in the prior art;
Fig. 9 is the GPRS/EDGE multi-frame structure sketch map according to 4 ascending time slots of 1 descending time slot in the prior art;
Figure 10 is the user terminal structural representation according to four embodiment of the invention.
Embodiment
In following narration, many ins and outs have been proposed in order to make the reader understand the application better.But, persons of ordinary skill in the art may appreciate that even without these ins and outs with based on the many variations and the modification of following each execution mode, also can realize each claim of the application technical scheme required for protection.
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that execution mode of the present invention is done to describe in detail further below.
First embodiment of the invention relates to a kind of inter-system measuring method, and idiographic flow is as shown in Figure 5.
In step 501; Be in a clear area of the selected current business frame (like the speech business frame in the gsm system, GPRS frame or EDGE frame) of user terminal under the GSM connection mode, the length of selected clear area is 526QBC (1QBC is the length of 1/4 bit).
Specifically; Can know according to the definition to the multislot capability grade (CLASS) of user terminal in the prior art; GSM/GPRS/EDGE frame the inside below any CLASS12; All have two idle time slots of continuous GSM at least, to shown in Figure 9, the idle time slot The corresponding area of GSM is the clear area like Fig. 6.Therefore in this step, when the user terminal when being in the GSM connection mode is under carrying out professional in the gsm system, a clear area that length is 526QBC in the optional settled preceding traffic frame.Can know that according to Fig. 6 to Fig. 9 two sections idle time slots are arranged in each traffic frame, in theory, can in any one section idle time slot, select the clear area of 526QBC.But because often there is Timing Advance (transmission lead) in gsm system; If if therefore have only the idle time slot of a GSM in the sending time slots front; Then preferably select other positions; Like the position of latter two continuous slot in the current business frame, this position be each GSM/GPRS/EDGE frame this must be idle.That is to say that the optimum position of selected clear area is any one section 526QBC in latter two continuous slot in each GSM/GPRS/EDGE frame.Need to prove; The optimum position here is meant that Fig. 6 is to the extreme configuration of Fig. 9; If configuration is very simple as have only on 1 the configuration under 1, the position can be selected arbitrarily, but any configuration; Latter two continuous slot all is available, selects can reduce equally the complexity that software is realized here.In addition, in view of the angle that reality realizes,, then should slightly keep at a distance, prevent to launch and pour in down a chimney influence reception measurement, but this part be relevant with hardware designs, if hardware designs is better, also can ignore this consideration if gsm system is sending time slots at last.
Then, in step 502, the selected clear area of user terminal utilization receives the training sequence code in the TD-SCDMA system, i.e. the TS0 midamble of TD-SCDMA system zone.Because midambel sign indicating number partial-length is 144chips, converts QBC into, be 122QBC, but actual effective length is 128chip, converting QBC into is 109QBC, and the back 128chip that only need receive the 144chip the inside during reception gets final product.Clear area length selected in step 501 is 526QBC; Be 417QBC+109QBC; Wherein 417QBC is the Minimum Area that slides, and add 109 to be the length that guarantees the preceding 128chip (being 109QBC) in the training sequence code fall into being received that this selected zone can be complete from any starting point.Concrete proof will be described in more detail below.Therefore, user terminal selected clear area capable of using fully receives the training sequence code in the TD-SCDMA system.
Then; In step 503; Whether user terminal is judged the signal in the received TD-SCDMA system in selected clear area, be the useful information (be 128chips actual useful in the training sequence code, being converted into QBC is 109QBC) of complete training sequence code; If intactly receive the useful information of training sequence code, then get into step 504; If intactly do not receive the useful information of training sequence code; Then get into step 505; Slide behind the GSM frame, continue to utilize selected clear area to receive the training sequence code in the TD-SCDMA system, and after step 505; Get back to step 503, judge whether selected clear area intactly receives the useful information of training sequence code.
Specifically; According to knowing the definition of GSM frame and TD-SCDMA subframe in the prior art; The time span of 1 GSM frame is 60/13ms, and the time span of a TD-SCDMA subframe is 5ms, and 5*12=(60/13) * 13=60ms; Therefore 12 TD subframes of every mistake are (convenient for describing; Abbreviate the TD-SCDMA subframe as the TD frame) and the time of 13 GSM frames of every mistake in full accord, that is to say that TD system and gsm system obtain correspondence fully behind 12 TD subframes of every mistake and 13 GSM frames of every mistake on frame boundaries.Because 1 GSM frame has 1250 bits (bit), the length of 1/4 bit of this unit representation of QBC.Therefore, 1 GSM frame can go to calculate with 5000QBC, and the slot length that can draw 1 GSM frame is 5000/8=625QBC; The slot length of 2 GSM frames is 5000/8*2=1250 QBC; Simultaneously can be through the time span of TD frame and the time span of GSM frame; Can converse 1 TD frame and can use 5000* (5/ (60/13))=5000*13/12 (QBC) to calculate, that is to say 1 GSM frame of every mistake so; The position of TD frame just with respect to the current GSM frame many 5000/12 QBC, 5000/12 QBC in other words slides.
Regard the GSM frame as 12 parts, every part is 5000/12QBC.The TD frame is 13 parts so, and every part is 5000/12QBC.So in 13 GSM frames, if be fundamental unit (meaning of fundamental unit is whenever to add 1, is equivalent to 1 GSM frame) with the GSM frame, 13 parts of this TD frame all can be in 13 GSM frames by traversal once, and have and only once.That is, 1 GSM frame of every mistake is a benchmark with the GSM frame boundaries, and can slide with 5000/12QBC in the position of TD so, and each result must be inequality on the position of 13 GSM frames, promptly travels through wherein 13 parts of a TD frame.
Through reduction to absurdity, can draw the conclusion of " selected 13 zones that the GSM frame is identical are when this area size is 5000/12=417QBC; through slip GSM frame; 1 TD frame must be by traversal once in 13 GSM frames, and have and only once " equally, specific as follows:
If GSM and the alignment of TD frame frame head, the position of the TD frame that 5000/12 QBC that fixing observation begins from the GSM frame head is corresponding.Suppose that at the m time m is less than 13, behind the frame of the fundamental unit of m GSM frame of process; The TD position that 5000/12 QBC that the GSM frame head begins runs into wherein 2 parts be identical consistent since frame head begins all, the TD position that the whole GSM frame in back is corresponding so is also all consistent; Promptly crossed m GSM frame; M is less than 13, and GSM frame and TD frame overlap, but this overlaps the integral multiple contradiction that will satisfy 13 frames with GSM frame and TD frame.Then proved above inference.
Therefore, for guaranteeing to slide all over a TD subframe, then need the length of 5000/12=417 (QBC) 13 continuous GSM frame the insides.If can run into complete TD measuring position, then length is at least 417+109 (actual Useful Information is converted into the length of QBC in the training sequence code)=526QBC, and therefore, in this execution mode, the length of clear area is set to 526QBC.
That is to say that utilize the signal of the clear area reception TD-SCDMA system of traffic frame under the GSM connection mode, in 13 GSM frames, once the useful information of training sequence code intactly drops in the selected clear area in the TD-SCDMA system.Therefore, guaranteed that this execution mode can not be absorbed in endless loop, in 13 GSM frames, must get into step 504.The judgement that whether intactly receives the training sequence code useful information in the face of the clear area to selected in this execution mode down specifies.
Because circulation FN_MAX=26 * 51 * 2048 of GSM frame; This value is 13 integral multiple; This just can derive a conclusion so: based on the border (establishing frame number is FN1) of any GSM frame, begin to locate position delta_p with respect to this GSM frame boundaries (can be the optional position in theory, ts0 be fairly simple through obtaining TD subframe 0 time slot; Remainder can calculate through ts0) after; Just can be through having crossed how many GSM frame N, (supposing in the position that this frame of FN2 need calculate TDTS0, then N=(FN2+FN_MAX-FN1) %13); Calculate behind this N the GSM frame that slided, 0 time slot of TD subframe begins to locate the position POS with respect to current GSM frame boundaries.Specifically can adopt formula POS=(delta_p+N * 417) %5417,0 time slot that calculates the TD subframe begins the position of place with respect to current GSM frame (frame number is FN2) border.Wherein, delta_p representes that 0 time slot of TD subframe begins the place with respect to the position on current GSM frame (frame number is FN1) border, and N representes the GSM frame number that slides, and % representes to get remainder operation.This relation has been arranged; The position that just can in GSM frame arbitrarily, remove to calculate TD TS0; And then obtain the position of the useful information of training sequence code at current GSM frame; Through the idle time slot with selected GSM/GPRS matees in the position of current GSM frame with the useful information of training sequence code, thereby arrive the purpose of measuring TD.
That is to say in this execution mode, can judge in the following manner whether selected clear area intactly receives the useful information of training sequence code:
0 time slot according to the TD subframe begins to locate with respect to the position (representing with delta_p) of current GSM frame boundaries and the GSM frame number (representing with N) that slides; Calculating is behind this N the GSM frame that slided; 0 time slot of TD subframe begins to be in the position POS of current GSM frame; As according to formula POS=(delta_p+N * 417) %5417, obtain POS, the % in the formula representes to get remainder operation.Then; POS according to calculating obtains the position of the useful information of training sequence code in the TD subframe at current GSM frame; If the useful information of training sequence code can be complementary with selected clear area in the position of current GSM frame in the TD subframe, judge that then selected clear area intactly receives the useful information of training sequence code.If can not mate, judge that then selected clear area can not intactly receive the useful information of training sequence code.Wherein, delta_p and the delta_p frame number (being N) that is based on which GSM can obtain through being synchronized in the TD system.User terminal is synchronized to and obtains delta_p in the TD system and N can realize in the prior art, repeats no more at this.
Need to prove, in this execution mode, be to mate with selected clear area in the position of current GSM frame through the useful information with training sequence code, learns whether selected clear area intactly receives the useful information of training sequence code.But in practical application, also can judge the useful information whether selected clear area intactly receives training sequence code, repeat no more at this through other modes.How to judge selected clear area and whether intactly receive the training sequence code useful information, to the not direct relation of the essence of this execution mode.
Then, in step 504, user terminal is stored the useful information of the complete training sequence code that receives.
Then, in step 506, user terminal is accomplished the measuring process of TD-SCDMA system according to the useful information of stored training sequence code.Because in fact the process that the TD-SCDMA system is measured is exactly that the regional signal of the TS0 midamble of TD-SCDMA system is received processing; Therefore; After obtaining the useful information of training sequence code, can accomplish the measuring process of TD-SCDMA system; Concrete step is identical with prior art, repeats no more at this.
After finishing this measuring process, user terminal can be proceeded frame slip, in next 13 frames, obtains No. at least 1 measuring machine meeting once more, realizes the periodic measurement to the TD-SCDMA system.
Be not difficult to find; In this execution mode; Utilize that " clear area in the selected GSM frame; when this area size is 5000/12=417QBC, 1 TD frame must be by traversal once (if selected zone greater than 417QBC, then 1 TD frame can be by traversal repeatedly in 13 GSM frames) in 13 GSM frames.That is to say; 1 GSM frame of every mistake is a benchmark with the GSM frame boundaries, and can slide with 5000/12QBC in the position of TD so; And each result must be inequality on the position of 13 GSM frames; Promptly travel through wherein 13 parts of a TD frame " these characteristics, the clear area of traffic frame is used to receive the signal of TD-SCDMA system under the selected GSM connection mode, if selected clear area is intactly dropped in the useful information position of TS0 (0 time slot) midamble (training sequence code); then the useful information of the training sequence code that receives is stored; otherwise the GSM frame that slides continues to utilize selected clear area to receive the signal in the TD-SCDMA system, intactly drops on selected clear area until the useful information position of training sequence code.According to the useful information of stored training sequence code, accomplish the measuring process of TD-SCDMA system.Because in fact the process that the TD-SCDMA system is measured is exactly that the regional signal of the TS0 midamble of TD-SCDMA system is received processing; Therefore utilize the TS0 midamble regional signal of the clear area reception TD-SCDMA system of traffic frame under the GSM connection mode; Can accomplish measurement not influencing under the professional prerequisite of gsm system to the TD-SCDMA system.And, owing to can obtain the measuring machine meeting of a TD-SCDMA system in per 13 GSM frames at most, so can not cause long problem measuring period of TD-SCDMA system yet.
In addition, what deserves to be mentioned is, because in prior protocols; Speech business frame, GPRS frame and EDG E frame all satisfy the integral multiple structure of 13 GSM frames; Therefore in this execution mode, current business is speech business, GPRS or EDGE, to guarantee the realization feasibility of this execution mode; But in practical application, also can be other gsm services that satisfy the integral multiple structure of 13 GSM frames.
Second embodiment of the invention relates to a kind of inter-system measuring method.Second execution mode improves on the basis of first execution mode; Main improvements are: behind selected clear area; Accomplish according to the useful information of stored training sequence code before the measurement of TD-SCDMA system; User terminal also need utilize selected clear area to receive descending pilot frequency time slot signal in the TD-SCDMA system (because the length of descending pilot frequency time slot signal is also shorter than midamble; Therefore selected clear area fully capable of using receives), if selected clear area intactly receives descending pilot frequency time slot signal, then user terminal is stored the descending pilot frequency time slot signal that receives.If selected clear area does not intactly receive descending pilot frequency time slot signal; User terminal GSM frame that slides then; Continue to utilize selected clear area to receive the signal in the TD-SCDMA system, the descending pilot frequency time slot signal in the TD-SCDMA system intactly drops on selected clear area.User terminal is accomplished the measuring process of TD-SCDMA system according to the useful information and the descending pilot frequency time slot signal of stored training sequence code.
Specifically; If the signal that user terminal is judged in the received TD-SCDMA system in selected clear area is not the useful information of training sequence code; Further judge again that then whether TD-SCDMA signal received in the selected clear area is that (judgment mode and first execution mode duplicate for descending pilot frequency time slot signal in the TD-SCDMA system; Repeat no more at this); If descending pilot frequency time slot signal is then stored this descending pilot frequency time slot signal; If not the GSM frame that then slides, continue to utilize selected clear area to receive the signal in the TD-SCDMA system, until the useful information of accomplishing training sequence code and the storage of descending pilot frequency time slot signal.User terminal is accomplished the measuring process of TD-SCDMA system according to the useful information and the descending pilot frequency time slot signal of stored training sequence code.
Because the reception processing to dwpts signal in the TD-SCDMA system can be kept the synchronous of user terminal and TD-SCDMA system; Therefore utilize selected clear area to receive the descending pilot frequency time slot dwpts signal in the TD-SCDMA system, can further guarantee the measurement accuracy of TD-SCDMA system.
Third embodiment of the invention relates to a kind of inter-system measuring method.The 3rd execution mode and first or second execution mode are roughly the same; Main distinction part is: in first or second execution mode; The length of selected clear area is 526QBC, and in the 3rd execution mode, the length of selected clear area is greater than 526QBC.
Because 0 time slot training sequence code length of TD-SCDMA system is 144chip, and reality 128chip usefully is converted into QBC, is 109QBC.And can slide all over a TD frame 13 continuous GSM frame the insides in order to guarantee; The length that then needs 5000/12=417 (QBC); When so the length in selected clear area is at least 526QBC (417+109=526); Can guarantee that in 13 GSM frames, once the useful information of training sequence code intactly drops in the selected clear area in the TD-SCDMA system.And in this execution mode, therefore the length of selected clear area have to surpass 1 time measuring machine meeting in 13 frames greater than 526QBC probably, makes user terminal can in the shorter time, accomplish the measurement of TD-SCDMA system.
In addition, being appreciated that selected clear area can be a zone in the idle time slot, also can be the zone in two adjacent time-slots.
Each method execution mode of the present invention all can be realized with modes such as software, hardware, firmwares.No matter the present invention be with software, hardware, or the firmware mode realize; Instruction code can be stored in the memory of computer-accessible of any kind (for example permanent or revisable; Volatibility or non-volatile; Solid-state or non-solid-state, fixing perhaps removable medium or the like).Equally; Memory can for example be programmable logic array (Programmable Array Logic; Abbreviation " PAL "), random access memory (Random Access Memory; Abbreviation " RAM "), programmable read only memory (Programmable Read Only Memory is called for short " PROM "), read-only memory (Read-Only Memory is called for short " ROM "), Electrically Erasable Read Only Memory (Electrically Erasable Programmable ROM; Abbreviation " EEPROM "), disk, CD, digital versatile disc (Digital Versatile Disc is called for short " DVD ") or the like.
Four embodiment of the invention relates to a kind of user terminal.Specifically shown in figure 10, this user terminal comprises:
Select module, be used for a clear area of selected current business frame when being in the connection mode of GSM, the length of selected clear area is 526QBC, and wherein, 1QBC is the length of 1/4 bit.The current business frame can be the GSM evolution traffic frame of the speech business frame in the gsm system, GPRS frame or enhancing data rate.
Receiver module is used for utilizing the training sequence code of selecting the selected clear area of module to receive the TD-SCDMA system.
Memory module is used for the useful information of the training sequence code that receives is stored, and wherein, the useful information of training sequence code is for measuring the required information of TD-SCDMA system.
Judge module is used to judge whether the selected clear area of receiver module utilization intactly receives the useful information of training sequence code, if intactly receive the useful information of training sequence code, then triggers memory module and stores.If judge the useful information that does not intactly receive training sequence code; Then indicate GSM frame of receiver module slip; Continue to utilize and select the selected clear area of module to receive the training sequence code in the TD-SCDMA system, intactly receive the useful information of training sequence code until the selected clear area of receiver module utilization.
Measurement module is used for the useful information according to memory module stored training sequence code, accomplishes the measuring process of TD-SCDMA system.
Wherein, judge module comprises following submodule:
Calculating sub module; Be used for beginning to locate with respect to the position delta_p of current GSM frame boundaries and the GSM frame number N of slip according to 0 time slot of TD-SCDMA subframe; Calculating is behind said N the GSM frame that slided; 0 time slot of TD-SCDMA subframe begins to be in the position POS of current GSM frame, and obtains the position of the useful information of training sequence code in the TD-SCDMA subframe at current GSM frame according to the POS that calculates.
Matched sub-block is used for the useful information of training sequence code is mated with selected clear area in the position of current GSM frame, if be complementary, judges that then selected clear area intactly receives the useful information of training sequence code.If can not mate, judge that then selected clear area can not intactly receive the useful information of training sequence code.
Calculating sub module is calculated POS through following formula:
POS＝(delta_p+N×417)％5417
Wherein, % representes to get remainder operation.
In this execution mode; User terminal is according to the time slot configuration under the GSM connection mode; Select a clear area of current business frame, the length of institute's favored area equals the useful information length of training sequence code in the TD-SCDMA system (promptly measuring the required message length of TD-SCDMA system).Utilize selected clear area to receive the signal in the TD-SCDMA system; If selection area is intactly dropped in the useful information position of training sequence code; Then the useful information of the training sequence code that receives is stored; Otherwise the GSM frame that slides continues to utilize selected clear area to receive the training sequence code in the TD-SCDMA system.Because the clear area in selected GSM frame; When this area size is 5000/12=417QBC; 1 TD frame must be by traversal once in 13 GSM frames, and have and only once (if selected zone greater than 417QBC, then 1 TD frame can be by traversal repeatedly in 13 GSM frames).That is to say that 1 GSM frame of every mistake is a benchmark with the GSM frame boundaries, can slide with 5000/12QBC in the position of TD so, and each result must be inequality on the position of 13 GSM frames, promptly travels through wherein 13 parts of a TD frame.Therefore, in 13 GSM frames, once the useful information of training sequence code intactly drops in the selected clear area in the TD-SCDMA system.User terminal can be accomplished the measuring process of TD-SCDMA system according to the useful information of the training sequence code that receives.Because in fact the process that the TD-SCDMA system is measured is exactly that the regional signal of the TS0 midamble (training sequence code) of TD-SCDMA system is received processing; Therefore utilize the TS0 midamble regional signal of the clear area reception TD-SCDMA system of traffic frame under the GSM connection mode; Can under the prerequisite that does not influence the GSM/GPRS/EDGE system, accomplish measurement to the TD-SCDMA system.
Be not difficult to find that first execution mode is and the corresponding method execution mode of this execution mode, this execution mode can with the enforcement of working in coordination of first execution mode.The correlation technique details of mentioning in first execution mode is still effective in this execution mode, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in this execution mode also can be applicable in first execution mode.
Fifth embodiment of the invention relates to a kind of user terminal.The 5th execution mode improves on the basis of the 4th execution mode, and main improvements are:
Receiver module also is used for utilizing selected clear area to receive the descending pilot frequency time slot signal of TD-SCDMA system.Memory module also is used for the descending pilot frequency time slot signal that receives is stored.Judge module is used to also judge whether the selected clear area of receiver module utilization intactly receives descending pilot frequency time slot signal, if intactly receive descending pilot frequency time slot signal, then triggers the storage that memory module is carried out descending pilot frequency time slot signal.Intactly do not receive descending pilot frequency time slot signal if judge; Then indicate GSM frame of receiver module slip; Continue to utilize and select the selected clear area of module to receive descending pilot frequency time slot signal, the clear area selected until the receiver module utilization intactly receives descending pilot frequency time slot signal.
Measurement module is accomplished the measuring process of TD-SCDMA system according to the useful information and the descending pilot frequency time slot signal of stored training sequence code.
Be not difficult to find that second execution mode is and the corresponding method execution mode of this execution mode, this execution mode can with the enforcement of working in coordination of second execution mode.The correlation technique details of mentioning in second execution mode is still effective in this execution mode, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in this execution mode also can be applicable in second execution mode.
Sixth embodiment of the invention relates to a kind of user terminal.The 6th execution mode and the 4th or the 5th execution mode are basic identical, and difference mainly is: in the 4th or the 5th execution mode, the length of selected clear area is 526QBC, and in this execution mode, the length of selected clear area is greater than 526QBC.Because the length of selected clear area during greater than 526QBC, has probably to surpass 1 time measuring machine meeting in 13 frames, so can make user terminal can in the shorter time, accomplish the measurement of TD-SCDMA system.
Be not difficult to find that the 3rd execution mode is and the corresponding method execution mode of this execution mode, this execution mode can with the enforcement of working in coordination of the 3rd execution mode.The correlation technique details of mentioning in the 3rd execution mode is still effective in this execution mode, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in this execution mode also can be applicable in the 3rd execution mode.
Need to prove; Each unit of mentioning in each equipment execution mode of the present invention all is a logical block, and physically, a logical block can be a physical location; It also can be the part of a physical location; Can also realize that the physics realization mode of these logical blocks itself is not most important with the combination of a plurality of physical locations, the combination of the function that these logical blocks realized is the key that just solves technical problem proposed by the invention.In addition, for outstanding innovation part of the present invention, above-mentioned each the equipment execution mode of the present invention will not introduced with solving the not too close unit of technical problem relation proposed by the invention, and this does not show that there is not other unit in the said equipment execution mode.
Though through reference some preferred implementation of the present invention; The present invention is illustrated and describes; But those of ordinary skill in the art should be understood that and can do various changes to it in form with on the details, and without departing from the spirit and scope of the present invention.
Claims (10)
1. an inter-system measuring method is characterized in that, comprises following steps:
A is in a clear area of the selected current business frame of user terminal under the connection mode of global system for mobile communications GSM, and the length of said selected clear area is at least 526QBC, and wherein, 1QBC is the length of 1/4 bit;
The said user terminal of B1 utilizes said selected clear area to receive the training sequence code in the TD SDMA TD-SCDMA system; If said selected clear area intactly receives the useful information of said training sequence code, then said user terminal is stored the useful information of the said training sequence code that receives; If said selected clear area does not intactly receive the useful information of said training sequence code; GSM frame of then said user terminal slip; Repeat this step, wherein, the useful information of said training sequence code is for measuring the required information of said TD-SCDMA system;
The said user terminal of C is according to the useful information of the said training sequence code of said storage, accomplishes the measuring process of said TD-SCDMA system;
Wherein, judge in the following manner whether said selected clear area intactly receives the useful information of said training sequence code:
0 time slot according to the TD-SCDMA subframe begins to locate with respect to the position delta_p of current GSM frame boundaries and the GSM frame number N of slip, calculates behind said N the GSM frame that slided, and 0 time slot of said TD-SCDMA subframe begins to be in the position POS of current GSM frame,
Said POS according to calculating obtains the position of the useful information of said training sequence code at current GSM frame; If the useful information of said training sequence code can be complementary with said selected clear area in the position of current GSM frame, judge that then said selected clear area intactly receives the useful information of said training sequence code; If can not mate, judge that then said selected clear area can not intactly receive the useful information of said training sequence code.
2. inter-system measuring method according to claim 1 is characterized in that, between said steps A and step C, also comprises following steps:
The said user terminal of B2 utilizes said selected clear area to receive the descending pilot frequency time slot signal in the said TD-SCDMA system; If said selected clear area intactly receives said descending pilot frequency time slot signal, then said user terminal is stored the said descending pilot frequency time slot signal that receives; If said selected clear area does not intactly receive said descending pilot frequency time slot signal, GSM frame of then said user terminal slip repeats this step;
In said step C, said user terminal is according to the useful information and the said descending pilot frequency time slot signal of the said training sequence code of said storage, accomplishes the measuring process of said TD-SCDMA system.
3. inter-system measuring method according to claim 1 is characterized in that, the length of said selected clear area is greater than 526QBC.
4. inter-system measuring method according to claim 1 is characterized in that, calculates said POS through following formula:
POS＝(delta_p+N×417)％5417
Wherein, % representes to get remainder operation.
5. according to each described inter-system measuring method in the claim 1 to 4, it is characterized in that said current business frame is speech business frame, GPRS frame in the gsm system or the GSM evolution traffic frame that strengthens data rate.
6. a user terminal is characterized in that, comprises:
Select module, be used for a clear area of selected current business frame when being in the connection mode of global system for mobile communications GSM, the length of said selected clear area is at least 526QBC, and wherein, 1QBC is the length of 1/4 bit;
Receiver module is used for utilizing the selected clear area of said selection module to receive the training sequence code of TD SDMA TD-SCDMA system;
Memory module is used for the useful information of the said training sequence code that receives is stored, and wherein, the useful information of said training sequence code is for measuring the required information of said TD-SCDMA system;
Judge module; Be used to judge said receiver module utilizes said selected clear area whether intactly to receive the useful information of said training sequence code; If intactly receive the useful information of said training sequence code, then trigger said memory module and carry out said storage; If judge the useful information that does not intactly receive said training sequence code; Then indicate GSM frame of said receiver module slip; Continue to utilize the selected clear area of said selection module to receive the training sequence code in the said TD-SCDMA system, utilize said selected clear area intactly to receive the useful information of said training sequence code until said receiver module;
Measurement module is used for the useful information according to the said training sequence code of said memory module storage, accomplishes the measuring process of said TD-SCDMA system;
Wherein, said judge module comprises following submodule:
Calculating sub module; Be used for beginning to locate with respect to the position delta_p of current GSM frame boundaries and the GSM frame number N of slip according to 0 time slot of TD-SCDMA subframe; Calculating is behind said N the GSM frame that slided; 0 time slot of said TD-SCDMA subframe begins to be in the position POS of current GSM frame, and obtains the position of the useful information of said training sequence code at current GSM frame according to the said POS that calculates;
Matched sub-block; Be used for the useful information of said training sequence code is mated in the position and the said selected clear area of current GSM frame; If be complementary, judge that then said selected clear area intactly receives the useful information of said training sequence code; If can not mate, judge that then said selected clear area can not intactly receive the useful information of said training sequence code.
7. user terminal according to claim 6 is characterized in that, said receiver module also is used for utilizing said selected clear area to receive the descending pilot frequency time slot signal of said TD-SCDMA system;
Said memory module also is used for the said descending pilot frequency time slot signal that receives is stored;
Said judge module is used to also judge said receiver module utilizes said selected clear area whether intactly to receive said descending pilot frequency time slot signal; If intactly receive said descending pilot frequency time slot signal, then trigger the storage that said memory module is carried out said descending pilot frequency time slot signal; Intactly do not receive said descending pilot frequency time slot signal if judge; Then indicate GSM frame of said receiver module slip; Continue to utilize the selected clear area of said selection module to receive said descending pilot frequency time slot signal, utilize said selected clear area intactly to receive said descending pilot frequency time slot signal until said receiver module;
Said measurement module is according to the useful information and the said descending pilot frequency time slot signal of the said training sequence code of said storage, accomplishes the measuring process of said TD-SCDMA system.
8. user terminal according to claim 6 is characterized in that, the length of said selected clear area is greater than 526QBC.
9. user terminal according to claim 6 is characterized in that, said calculating sub module is calculated said POS through following formula:
POS＝(delta_p+N×417)％5417
Wherein, % representes to get remainder operation.
10. according to each described user terminal in the claim 6 to 9, it is characterized in that said current business frame is speech business frame, GPRS frame in the gsm system or the GSM evolution traffic frame that strengthens data rate.
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| CN101110633B (en) * | 2006-07-19 | 2011-08-31 | 电信科学技术研究院 | Method and device for initial synchronization between GSM system and TD-SCDMA system |
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| CN101212246A (en) * | 2006-12-31 | 2008-07-02 | 深圳Tcl工业研究院有限公司 | Method for capturing downlink pilot time slot |
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