CN101437242B - Method and apparatus for confirming base station district identification code of communications terminal - Google Patents
Method and apparatus for confirming base station district identification code of communications terminal Download PDFInfo
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- CN101437242B CN101437242B CN200710177270XA CN200710177270A CN101437242B CN 101437242 B CN101437242 B CN 101437242B CN 200710177270X A CN200710177270X A CN 200710177270XA CN 200710177270 A CN200710177270 A CN 200710177270A CN 101437242 B CN101437242 B CN 101437242B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a method and a device for confirming a base station identification code BSIC of a communication terminal. The method comprises: firstly, allocating BSIC initial confirmation to measurement cells without timing information and recording confirmed timing information; and secondly, allocating reconfirmation to measurement cells with timing information, in the process of reconfirmation, positioning an SB receiving position of the measurement cells in the current idle window and allocating BSIC reconfirmation to the measurement cells corresponding to the positioned SB receiving position according to the timing information of the cells need to be measured and cyclophysis of synchronous burst SB in a multiframe structure. The method and the device can shorten confirmation time of the BSIC of the communication terminal, improve the sleeping property of the communication terminal and achieve power saving function.
Description
Technical field
The present invention relates to mobile communication technology, especially the base station district identification code of design of communications terminal (BSIC) confirmation method and affirmation device.
Background technology
In mobile communication system, communication terminal will carry out the periodicity nearby region measurement in the process of search network, promptly periodically carry out received signal intensity indication (RSSI, Received Signal StrengthIndicator) and calculate, and BSIC is carried out in 6 the strongest measurement sub-districts of RSSI wherein confirm.BSIC confirms to be divided into initial affirmation and heavily to confirm two kinds, when communication terminal does not have certain timing information of measuring the sub-district, needs that then BSIC is carried out in this measurement sub-district and initially confirms; When communication terminal has certain timing information of measuring the sub-district, need measure the sub-district to this and carry out BSIC and heavily confirm.Therefore, directly influence speed, free time (idle) the state effect of sleep and the following real-time requirement of connection status (connect) down of searching net of the speed confirmed of BSIC.
At present, the initial method of confirming of BSIC is: carry out frequency correction burst (FB) search in the window of appointment, if find frequency correction burst (FB, frequency correction burst) end point, promptly find rough synchronization burst (SB, synchronization burst) original position, the same position of two frames before and after both are positioned at, 7 time slots in interval, precision is several Qbit, write down this rough position, stop the specified window of described search.Then according to the periodicity of SB, the 11st～12 frame carries out the exact position search of SB behind the rough position of SB, and carries out BSIC decoding in this exact position, finishes BSIC and initially confirms.According to decoding CRC check result, judge whether the initial affirmation of this BSIC is successful.
The method that present BSIC heavily confirms is: the BSIC that each sub-district is carried out in the measurement sub-district (normally 6 the strongest adjacent areas of RSSI) of the high-rise appointment of terminal heavily confirms one by one.Carrying out the heavy confirmation method of certain BSIC that measures the sub-district is: the exact position of the SB that initial affirmation provides according to BSIC, periodicity (being 10 or 11 frames periodically) according to SB, because the uncertainty in cycle, will the position is continuous attempts carrying out BSIC 2 times and confirms occurring once more.Therefore, there is following defective in prior art:
1) only heavily confirm the initial exact position of confirming the SB that provides according to BSIC, i.e. the Serving cell frame number of SB appearance point correspondence, timeslot number, time slot bias internal are determined the position of heavily confirming according to the periodicity of SB.Fig. 1 is a kind of multi-frame structure figure.Referring to Fig. 1, a multi-frame comprises 51 frames, and wherein each little frame table shows a frame, and the little frame table that wherein indicates " F " shows the residing frame of FB, and the little frame table that indicates " S " shows the residing frame of SB.As shown in the figure, all period interval of the residing frame of SB do not equate, difference is 4 10 frames and 1 11 frame at interval, therefore, after the SB that initially confirms, owing to do not write down the adjacent area frame number of current SB correspondence, causing the position that occurs once more of not knowing SB may be behind 10 frames or behind 11 frames, therefore the heavily affirmation position of BISC is uncertain, may be 10 to 11 frames, can only all carry out the configuration of BSIC task at the corresponding time slot of this two frame.Therefore, the BSIC acknowledging time of existing this technology is long, and affirmation speed is low, and real-time is poor, has influenced the sleep power saving performance of communication terminal.
2) in heavily affirmation process, carry out the heavily affirmation of the BSIC of each sub-district successively since the 1st sub-district, after measuring the heavily affirmation end of sub-district, certain carries out the heavily affirmation of follow-up measurement sub-district again.And in fact, might position (being the SB receiving position) appear apart from far by the 1st BSIC that measures the sub-district, may occur a plurality of other during this period fully and measure the affirmation position of the BSIC of sub-district, therefore this heavy affirmation mode has been wasted the position that much can confirm, causes and confirms that 6 adjacent area BSIC are chronic.And, at present communication system protocol requires communication terminal to upgrade under idle (Idle) state that once (connection status is shorter following update time in per 30 seconds, upgraded in per 10 seconds once), remove to confirm BSIC and spend a lot of times between 30 seconds, can cause the length of one's sleep short even can't sleep.
3) initially confirm after finding the FB position, can not change at once the configuration order (be about to search for the FB task and change the SB task that receives into) of next frame, and SB appears behind 10～11 frames such as needs once more, just carrying out SB receives, carry out the search and the BSIC decoding of SB exact position, finishing BSIC initially confirms, therefore acknowledging time is long, and the position of SB is also uncertain.
Summary of the invention
In view of this, technical problem to be solved by this invention is to provide a kind of BSIC confirmation method of communication terminal, to shorten the BSIC acknowledging time of communication terminal, improves the sleep power saving performance of communication terminal.
Another technical problem to be solved by this invention is to provide a kind of BSIC of communication terminal to confirm device, to shorten the BSIC acknowledging time of terminal, improves the sleep power saving performance of communication terminal.
In order to realize the foregoing invention purpose, main technical schemes of the present invention is:
A kind of base station district identification code BSIC confirmation method of communication terminal comprises:
A, the measurement cell configuration BSIC that does not have timing information is initially confirmed the timing information behind the registration confirmed;
B, the measurement cell configuration BSIC with timing information is heavily confirmed, in the described heavy affirmation process, timing information and the cyclophysis of synchronization burst SB in multi-frame structure according to required measurement sub-district, the SB receiving position of location survey sub-district in current idle window is heavily confirmed at the corresponding BSIC that measures the sub-district of SB receiving position configuration that is located.
Preferably, the measurement number of cells that the described BSIC of needs heavily confirms is a plurality of, specifically comprises among the step B:
B1, in current idle window the described a plurality of measurements of poll sub-district;
B2, at the current measurement sub-district that is polled to, measure the timing information and the cyclophysis of SB in 51 multi-frame structures of sub-district according to this, in current idle window the location this measure the SB receiving position of sub-district;
B3, judge described positioning result, if in current idle window, can navigate to the SB receiving position of this measurement sub-district, then this measurement cell configuration BSIC is heavily confirmed, and upgrade idle window at the SB receiving position of being located, be polled to the next sub-district of measuring, return step B2; Otherwise, be polled to the next sub-district of measuring, return step B2.
Preferably, described timing information comprises: the appearance point information of measuring Cell System Frame Number, SB;
The described method of locating the SB receiving position in current idle window of step B is:
B1, according to measuring sub-district timing information and the cyclophysis of SB in frame structure, determine and write down the positions of this measurements sub-district 5 reception SB in 51 cycles;
B2, present frame is converted in 51 multi-frames,, judged whether the SB of this measurement sub-district can appear on the present frame according to conversion result and 5 SB receiving positions, if, execution in step b3 then; Otherwise, be polled to the measurement sub-district that next needs BSIC heavily to confirm, return step b1;
B3, the SB appearance point of judging described measurement sub-district whether appear on the current idle window and this SB appearance point to the distance of current idle window right hand edge whether greater than the message pick-up length of SB, if, the receiving position of then locating S B is for to begin to the end point of described reception length from the SB appearance point, upgrade idle window, be polled to the measurement sub-district that next needs BSIC heavily to confirm, return step b1; Otherwise be polled to the measurement sub-district that next needs BSIC heavily to confirm, return step b1.
Preferably, described according to conversion result and 5 SB receiving positions, judge that the concrete the mode whether SB of this measurement sub-district can appear on the present frame is:
To described current frame number mould 51, consequently one of 5 SB receiving positions determine that then the SB of this measurement sub-district can appear on the present frame, otherwise the SB of this measurement sub-district can not appear on the present frame.
Preferably, described method further is provided with initial confirmation form and heavy confirmation form, will not have the measurement sub-district of timing information to be set in the initial confirmation form, and to the measurement sub-district execution in step A in the initial confirmation form; To there be the measurement sub-district of timing information to be set in the heavy confirmation form, measurement sub-district poll execution in step B in the counterweight confirmation form, and after predetermined number of failed is heavily confirmed in certain measurement sub-district, should measure the sub-district and from heavy confirmation form, delete, and add in the initial confirmation form.
Preferably, steps A is described is specially measuring the initial affirmation of cell configuration BSIC:
A1, carry out frequency correction burst FB search, find the end point of FB, stop the FB search, the rough position every the position of 7 time slots backward as SB in the end point position of described FB;
A2, begin to receive data, in this segment data, seek the exact position of SB more than 1 time slot in the accuracy rating of rough position;
A3, carry out BSIC in the exact position of the described SB of step a2 and confirm.
A kind of BSIC of communication terminal confirms device, and this device comprises:
Initial affirmation module is used for the measurement cell configuration BSIC that does not have timing information is initially confirmed the timing information behind the registration confirmed;
Heavily confirm module, be used for the cyclophysis at frame structure according to the timing information of measuring the sub-district and SB, the location needs the SB receiving position of the measurement sub-district that BSIC heavily confirms in current idle window, heavily confirms at the corresponding BSIC that measures the sub-district of SB receiving position configuration that is located.
Preferably, this device further comprises:
Initial confirmation form, being used to be provided with does not have the measurement of timing information sub-district, and described initial affirmation module is initially confirmed the measurement cell configuration BSIC in the initial confirmation form;
Weigh confirmation form, be used to be provided with the measurement sub-district of timing information, the measurement cell configuration BSIC in the described heavy affirmation module counterweight confirmation form heavily confirms.
Preferably, described heavy affirmation module specifically comprises:
The poll module is used for poll is carried out in the measurement sub-district of described heavy confirmation form;
Locating module is used for the measurement sub-district that is polled at current, measures the timing information and the cyclophysis of SB in frame structure of sub-district according to this, in current idle window the location this measure the SB receiving position of sub-district;
Heavily confirm Executive Module, be used to judge the positioning result of described locating module, if in current idle window, can navigate to the SB receiving position of described measurement sub-district, then this measurement cell configuration BSIC is heavily confirmed at the SB receiving position of being located, and upgrade idle window, trigger described poll module and be polled to the next sub-district of measuring; Otherwise, directly trigger described poll module and be polled to the next sub-district of measuring.
Preferably, described initial affirmation module specifically comprises:
The rough position determination module is used to carry out FB search, finds the end point of FB, the rough position as SB every the position of 7 time slots backward in the end point position of described FB;
The exact position determination module is used for accuracy rating at rough position and begins to receive data more than 1 time slot, seeks the exact position of SB in this segment data;
Initial affirmation Executive Module is used for carrying out BSIC in the exact position of described SB and confirms.
With respect to prior art, the present invention initially confirms the timing information of record measurement sub-district, back at BSIC, the appearance point information that not only comprises SB in this timing information (is corresponding with service sub-district frame number, timeslot number and time slot bias internal), comprise that also BSIC decoding information promptly measures the System Frame Number of sub-district, carrying out BSIC when heavily confirming to measuring the sub-district, the cyclophysis in frame structure in conjunction with described timing information and SB, next the frame number of position occurs can to calculate SB, the i.e. accurate SB receiving position of location survey sub-district, and judge that this position is whether in current idle window, therefore only need on this pinpoint SB receiving position configuration just can carry out BSIC and heavily confirm, carry out BSIC and heavily confirm and needn't as prior art, receive continuous 2 to 3 frame correspondence position data.Therefore, the present invention has reduced the complexity of processing mode, has improved the speed that BSIC confirms, has shortened the BSIC acknowledging time, makes that BSIC confirms to have more real-time, and then the sleep power saving performance of communication terminal is better promoted; And because the speed that BSI C confirms has improved, the measuring speed of corresponding measurement sub-district also can improve.
In addition, prior art is carried out BSIC when heavily confirming to measuring the sub-district, need carry out each BSIC that measures the sub-district one by one heavily confirms, wasted the position that much can confirm, cause and confirm that 6 adjacent area BSIC are chronic, and following 30 seconds of protocol requirement Idle situation is upgraded once, removes to confirm BSIC and spend a lot of times between 30 seconds, can cause the length of one's sleep short even can't sleep.In the present invention, can make full use of each idle window, the measurement cell list that poll needs BSIC heavily to confirm, make serial confirm to have become parallel affirmation, therefore shortened the time that BSIC heavily confirms greatly, make that communication terminal sleep power saving performance is better improved, and can effectively improve measuring speed.
Confirm initially that for BSIC prior art is according to the FB rough position, receive SB after the configuration on the 10th～11 frame and carry out BSIC and confirm that initially the time is long that the position is uncertain.And among the present invention according to the FB rough position, dispose position after 7 time slots as the accurate receiving position of SB, and carry out BSIC and initially confirm, can shorten the initial time of confirming of BSIC, especially can satisfy the demand of searching net and cell identification fast.
Description of drawings
Fig. 1 is a kind of multi-frame structure figure;
Fig. 2 is the main flow chart of the method for the invention;
Fig. 3 is a kind of concrete implementing procedure figure of BSIC confirmation method of the present invention;
The configuration schematic diagram that Fig. 4 heavily confirms for configuration BSIC of the present invention;
Fig. 5 is that a kind of BSIC of communication terminal confirms schematic representation of apparatus;
Fig. 5 a is the concrete structure schematic diagram of described initial affirmation module;
Fig. 5 b is the concrete structure schematic diagram of described heavy affirmation module.
Embodiment
Below by specific embodiments and the drawings the present invention is described in further details.
Fig. 2 is the main flow chart of the method for the invention.Referring to Fig. 2, this flow process comprises:
Step 201, BSIC is carried out in the measurement sub-district that does not have timing information initially confirm the timing information behind the registration confirmed.
Step 202, BSIC is carried out in the measurement sub-district with timing information heavily confirm, in the described heavy affirmation process, according to required measurement sub-district (one or more, generally be 6) timing information and the cyclophysis of SB in 51 multi-frame structures, the SB receiving position of location survey sub-district in current idle window carries out the corresponding BSIC that measures the sub-district at the SB receiving position of being located and heavily confirms.
Described measurement sub-district is generally 6 the strongest adjacent areas of RSSI signal of the high-rise appointment of terminal, serves as that the measurement sub-district is that example illustrates BSIC confirmation method of the present invention with 6 adjacent areas below.
Fig. 3 is a kind of concrete implementing procedure figure of BSIC confirmation method of the present invention.Referring to Fig. 3, comprising:
At first carry out the search of FB, find the end point of FB, promptly obtain the FB starting point, the starting point of FB is exactly a frame boundaries, can obtain the 0th time slot SB starting position of one frame, back thus; Secondly, because according to multi-frame structure shown in Figure 1, the residing frame of FB and SB is adjacent, and all be positioned on the TS0 time slot, because a frame has 8 time slots, therefore the FB end point receiving position that is exactly SB every 7 time slots again as can be known, therefore order immediately stops search after searching out the FB end point, by the physical layer rough position that to dispose 7 positions behind the time slot at once be SB, the reception of configuration SB, the 15bit before the rough position of SB (precision of rough position) beginning, receive the data (adopting 189bit at present) of unnecessary 1 time slot, send into balance module, and in this segment data, seek the accurate receiving position of SB, obtain the SB decoded data; At last, described SB is deciphered, obtain the BSIC decoding data, thereby the BSIC that measures the sub-district is initially confirmed.By this processing, need not dispose and receive behind 10～11 frames SB and carry out BSIC and initially confirm.Thereby improved BSIC greatly and confirmed speed.
After described BSIC initially confirms success, can obtain measuring the timing information of sub-district, write down described timing information, can search out this measurement sub-district by this timing information, described timing information comprises: the appearance point information of measuring Cell System Frame Number and SB.Described SB appearance point information is specially: the frame number of this SB appearance point corresponding with service sub-district, timeslot number (tsn) that measurement sub-district SB occurs in a frame and SB appearance point are apart from the skew (offset) of boundary of time slot.
A), provide 5 positions that receive SB in 51 cycles, this measurement sub-district according to measuring sub-district timing information and the cyclophysis of SB in frame structure.
B) current frame number is converted in 51 multi-frames, according to conversion result and 5 SB receiving positions, whether the SB that judges this measurement sub-district can appear on the present frame, promptly System Frame Number mould 51 is converted, if one of 5 positions that receive SB, the SB that then determines this adjacent area can appear on the present frame execution in step c); If not, then the SB of this adjacent area can not appear on the present frame, need be polled to next adjacent area in the heavy confirmation form, returns execution in step a).
C) whether the appearance point of judging the SB of described adjacent area appears on the current idle window, promptly the timeslot number in this adjacent area timing information whether with current idle window in timeslot number coincide, and whether the distance from the SB appearance point of this adjacent area to current idle window right hand edge is greater than the message pick-up length of SB, if, illustrating then that current idle window can be received receives the SB relevant information, execution in step 305; Otherwise execution in step is returned a) in the next adjacent area in the heavy confirmation form of poll.
In one embodiment, concrete method is that the Serving cell frame number of measuring the appearance SB correspondence in 51 frames of sub-district is represented with a table, do the sub-district that BSIC heavily confirms if desired and have N, then be exactly (a N, 6) table, and sorted in all sub-districts according to the position that the 1st SB appears in 51 frames, in table, show 5 positions that receive SB of each sub-district correspondence in 51 frames.When judging whether the SB that measures the sub-district can appear at present frame, current frame number mould 51 need only be converted in 51 frames, tabling look-up judges whether it is that the SB receiving position gets final product.
Among the present invention,, just can carry out BSIC and heavily confirm, and needn't need receive the data of 2～3 frames like that to prior art so terminal receives the related data of corresponding 1 multi-slot because the position of SB appearance point is very definite.
If the current idle window of step 305 can be received and receive the SB relevant information of the described adjacent area that is polled to and use for equalizer, then dispose the heavily affirmation of the BSIC of this adjacent area at the SB receiving position of being located, and in heavy confirmation form, mark this adjacent area and be allocating cell, upgrade idle window, promptly from current idle window, remove the occupied receiving position of described SB, the occupied receiving position of current in other words adjacent area SB is set to busy state, thereby is convenient to dispose the affirmation of adjacent area, back BSIC.
The configuration schematic diagram that Fig. 4 heavily confirms for configuration BSIC of the present invention.Referring to Fig. 4, the BSIC of 1 adjacent area of 1 idle window possible configuration confirms that heavily for example adjacent area 4 is confirmed at the C of second idle window position configuration BSIC; But the BISC that also is not limited only to dispose 1 sub-district in 1 idle window heavily confirms task, if should also have clear position by the free time window, then dispose the follow-up sub-district of poll, judge according to the adjacent area timing information whether this free time window the SB of certain sub-district occurs, and can receive, then the BSI C of this sub-district of configuration monitoring heavily confirms.For example can heavily confirm in first idle window among the figure that BSIC that can configuring adjacent cell 3 in the B position heavily confirms at the BSIC of A position configuration adjacent area 1.
In addition, if the conflict of a plurality of sub-districts in an idle window, occurs, the SB receiving position that is a plurality of adjacent areas overlaps, for example adjacent area among Fig. 41 and adjacent area 2 overlap, then according to the ordering in the heavy confirmation form, the BSIC of elder generation's configuring adjacent cell 1 heavily confirms, and in heavy confirmation form adjacent area 1 is being set to dispose sign after the configuration, poll in the sub-district that does not always dispose when reshuffling afterwards in heavily affirmation is tabulated.As shown in Figure 4, the BSIC of adjacent area 2 heavily confirms and may be configured in the A1 position of the 3rd idle window.
The result that the present invention also needs counterweight to confirm judges, and make corresponding operating: if the BSIC heavily affirmation failure for the first time of allocating cell, then the sign of configuration of this sub-district is removed, if BSIC the N time (N can be provided with) heavily confirms to fail then timing information is invalid, and from heavy confirmation form, remove this sub-district, and this sub-district added in the initial confirmation form, initially confirm thereby need carry out BSIC.The refresh timing information if BSIC heavily confirms success, and from heavy confirmation form, remove this sub-district.
Fig. 5 is that a kind of BSIC of communication terminal confirms schematic representation of apparatus.This affirmation device can be carried out above-mentioned BSIC confirmation method, and referring to Fig. 5, this device comprises:
Initial affirmation module 501 is used for the measurement cell configuration BSIC that does not have timing information is initially confirmed the timing information behind the registration confirmed;
Heavily confirm module 502, be used for the cyclophysis at frame structure according to the timing information of measuring the sub-district and SB, the location needs the SB receiving position of the measurement sub-district that BSIC heavily confirms in current idle window, heavily confirms at the corresponding BSIC that measures the sub-district of SB receiving position configuration that is located.
Described affirmation device also further comprises:
Initial confirmation form 503, being used to be provided with does not have the measurement of timing information sub-district, and the measurement cell configuration in 501 pairs of initial confirmation forms of described initial affirmation module is initially confirmed.
Fig. 5 a is the concrete structure schematic diagram of described initial affirmation module 501.Referring to Fig. 5 a, described initial affirmation module 501 comprises:
Rough position determination module 511 is used to carry out FB search, finds the end point of FB, the rough position as SB every the position of 7 time slots backward in the end point position of described FB.
Exact position determination module 512, be used for 15bit (precision of the rough position) beginning before the rough position of SB, receive the data (adopting 189bit at present) of unnecessary 1 time slot, send into balance module and in this segment data, seek the accurate receiving position of SB, and obtain the SB decoded data.
Initial affirmation Executive Module 513 is used for described SB is deciphered, and obtains the BSIC decoded data, thereby the BSIC that measures the sub-district is initially confirmed.
Fig. 5 b is the concrete structure schematic diagram of described heavy affirmation module 502.Referring to Fig. 5 b, described heavy affirmation module 502 specifically comprises:
Locating module 522 is used for the measurement sub-district that is polled at current, measures the timing information and the cyclophysis of SB in frame structure of sub-district according to this, in current idle window the location this measure the SB receiving position of sub-district.
Heavily confirm Executive Module 523, be used to judge the positioning result of described locating module, if in current idle window, can navigate to the SB receiving position of described measurement sub-district, then this measurement cell configuration BSIC is heavily confirmed at the SB receiving position of being located, and upgrade idle window, trigger described poll module and be polled to the next sub-district of measuring; Otherwise, directly trigger described poll module and be polled to the next sub-district of measuring.
The concrete implementation of described affirmation device comprises: confirm that initially module initially confirms the timing information behind the registration confirmed to the measurement cell configuration BSIC that does not have timing information.In the described initial affirmation process, at first continue to receive data and seek the FB position,, stop at once receiving in case find.Then with the corresponding time slot SB of next frame position, the rough position of regarding SB as, configuration receives SB, promptly receive unnecessary 1 time slot of length, in this segment data, ask for the exact position (being timing information) of SB, and and then decipher, whether be foundation correctly according to check code CRC, judge whether initially to confirm successfully.If CRC is correct, then initially confirm successfully, from the SB decoding data, obtain this BSIC information of measuring the sub-district and this measurement Cell System Frame Number.
Confirm that heavily module carries out to the measurement sub-district of known timing information and BSIC that BSIC heavily confirms and regularly upgrade.In the affirmation cycle, carry out a plurality of measurements sub-district BSIC synchronously and heavily confirm.Promptly according to the timing information of a plurality of sub-districts of required measurement and the cyclophysis of synchronization burst SB position, in current idle window, judge whether to exist certain to measure the SB receiving position of sub-district,, the SB receiving position of being located is regarded as the rough position of SB if exist, configuration receives SB, promptly receive unnecessary 1 time slot of length, the exact position of in this segment data, asking for SB, and and then decipher, obtain the BSIC information of this measurement sub-district, report the high level of terminal.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with the people of this technology in the disclosed technical scope of the present invention; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (7)
1. the base station district identification code BSIC confirmation method of a communication terminal is characterized in that, comprising:
A, the measurement cell configuration BSIC that does not have timing information is initially confirmed the timing information behind the registration confirmed;
B, the measurement cell configuration BSIC with timing information is heavily confirmed, in the described heavy affirmation process, timing information and the cyclophysis of synchronization burst SB in multi-frame structure according to required measurement sub-district, the SB receiving position of location survey sub-district in current idle window, heavily confirm at the corresponding BSIC that measures the sub-district of SB receiving position configuration that is located, when the measurement number of cells that needs BSIC heavily to confirm is a plurality of, specifically comprise among the step B:
B1, in current idle window the described a plurality of measurements of poll sub-district;
B2, at the current measurement sub-district that is polled to, measure the timing information and the cyclophysis of SB in 51 multi-frame structures of sub-district according to this, in current idle window the location this measure the SB receiving position of sub-district;
B3, judgement positioning result, if in current idle window, can navigate to the SB receiving position of this measurement sub-district, then this measurement cell configuration BSIC is heavily confirmed, and upgrade idle window at the SB receiving position of being located, be polled to the next sub-district of measuring, return step B2; Otherwise, be polled to the next sub-district of measuring, return step B2.
2. method according to claim 1 is characterized in that, described timing information comprises: the appearance point information of measuring Cell System Frame Number, SB;
The described method of locating the SB receiving position in current idle window of step B is:
B1, according to measuring sub-district timing information and the cyclophysis of SB in frame structure, determine and write down the positions of this measurements sub-district 5 reception SB in 51 cycles;
B2, present frame is converted in 51 multi-frames,, judged whether the SB of this measurement sub-district can appear on the present frame according to conversion result and 5 SB receiving positions, if, execution in step b3 then; Otherwise, be polled to the measurement sub-district that next needs BSIC heavily to confirm, return step b1;
B3, the SB appearance point of judging described measurement sub-district whether appear on the current idle window and this SB appearance point to the distance of current idle window right hand edge whether greater than the message pick-up length of SB, if, the receiving position of then locating SB is for to begin to the end point of described reception length from the SB appearance point, upgrade idle window, be polled to the measurement sub-district that next needs BSIC heavily to confirm, return step b1; Otherwise be polled to the measurement sub-district that next needs BSIC heavily to confirm, return step b1.
3. method according to claim 2 is characterized in that, and is described according to conversion result and 5 SB receiving positions, judges that the concrete the mode whether SB of this measurement sub-district can appear on the present frame is:
To the frame number mould 51 of described present frame, consequently one of 5 SB receiving positions determine that then the SB of this measurement sub-district can appear on the present frame, otherwise the SB of this measurement sub-district can not appear on the present frame.
4. method according to claim 1 is characterized in that, described method further is provided with initial confirmation form and heavy confirmation form, will not have the measurement sub-district of timing information to be set in the initial confirmation form, and to the measurement sub-district execution in step A in the initial confirmation form; To there be the measurement sub-district of timing information to be set in the heavy confirmation form, measurement sub-district poll execution in step B in the counterweight confirmation form, and after predetermined number of failed is heavily confirmed in certain measurement sub-district, should measure the sub-district and from heavy confirmation form, delete, and add in the initial confirmation form.
5. method according to claim 1 is characterized in that, steps A is described, and cell configuration BSIC is initial to be confirmed to be specially to measuring:
A1, carry out frequency correction burst FB search, find the end point of FB, stop the FB search, the rough position every the position of 7 time slots backward as SB in the end point position of described FB;
A2, begin to receive data, in these data, seek the exact position of SB more than 1 time slot in the accuracy rating of rough position;
A3, carry out BSIC in the exact position of the described SB of step a2 and confirm.
6. the BSIC of a communication terminal confirms device, it is characterized in that this device comprises:
Initial affirmation module is used for the measurement cell configuration BSIC that does not have timing information is initially confirmed the timing information behind the registration confirmed;
Initial confirmation form, being used to be provided with does not have the measurement of timing information sub-district, and described initial affirmation module is initially confirmed the measurement cell configuration BSIC in the initial confirmation form;
Heavily confirm module, be used for the cyclophysis at frame structure according to the timing information of measuring the sub-district and SB, the location needs the SB receiving position of the measurement sub-district that BSIC heavily confirms in current idle window, heavily confirms at the corresponding BSIC that measures the sub-district of SB receiving position configuration that is located;
Weigh confirmation form, be used to be provided with the measurement sub-district of timing information, the measurement cell configuration BSIC in the described heavy affirmation module counterweight confirmation form heavily confirms;
Wherein said heavy affirmation module specifically comprises:
The poll module is used for poll is carried out in the measurement sub-district of described heavy confirmation form;
Locating module is used for the measurement sub-district that is polled at current, measures the timing information and the cyclophysis of SB in frame structure of sub-district according to this, in current idle window the location this measure the SB receiving position of sub-district;
Heavily confirm Executive Module, be used to judge the positioning result of described locating module, if in current idle window, can navigate to the SB receiving position of described measurement sub-district, then this measurement cell configuration BSIC is heavily confirmed at the SB receiving position of being located, and upgrade idle window, trigger described poll module and be polled to the next sub-district of measuring; Otherwise, directly trigger described poll module and be polled to the next sub-district of measuring.
7. device according to claim 6 is characterized in that, described initial affirmation module specifically comprises:
The rough position determination module is used to carry out FB search, finds the end point of FB, the rough position as SB every the position of 7 time slots backward in the end point position of described FB;
The exact position determination module is used for accuracy rating at rough position and begins to receive data more than 1 time slot, seeks the exact position of SB in these data;
Initial affirmation Executive Module is used for carrying out BSIC in the exact position of described SB and confirms.
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| CN101997567B (en) * | 2009-08-21 | 2013-03-06 | 联芯科技有限公司 | Method and device for identifying base station identify code |
| CN104754725B (en) * | 2013-12-31 | 2019-01-18 | 辰芯科技有限公司 | SB acquisition methods and acquisition system under LTE mode |
| CN107306430B (en) * | 2016-04-21 | 2020-07-14 | 华为技术有限公司 | Mobile terminal and cell identification method |
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| CN1267439A (en) * | 1997-06-18 | 2000-09-20 | 诺基亚流动电话有限公司 | Method for identifying base station of time division cellular network in mobile station and mobile station |
| CN1464664A (en) * | 2002-06-11 | 2003-12-31 | 华为技术有限公司 | Method for deciding starting time of compression mode in different system measurement of CDMA system |
| CN1863373A (en) * | 2005-05-15 | 2006-11-15 | 华为技术有限公司 | Method and apparatus of switching between different systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1267439A (en) * | 1997-06-18 | 2000-09-20 | 诺基亚流动电话有限公司 | Method for identifying base station of time division cellular network in mobile station and mobile station |
| CN1464664A (en) * | 2002-06-11 | 2003-12-31 | 华为技术有限公司 | Method for deciding starting time of compression mode in different system measurement of CDMA system |
| CN1863373A (en) * | 2005-05-15 | 2006-11-15 | 华为技术有限公司 | Method and apparatus of switching between different systems |
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