CN104684065A

CN104684065A - Method and device for synchronizing and measuring GSM neighboring regions in GSM exclusive-OR mode

Info

Publication number: CN104684065A
Application number: CN201310606913.3A
Authority: CN
Inventors: 吴晓荣
Original assignee: Leadcore Technology Co Ltd
Current assignee: Leadcore Technology Co Ltd
Priority date: 2013-11-26
Filing date: 2013-11-26
Publication date: 2015-06-03
Anticipated expiration: 2033-11-26
Also published as: CN104684065B

Abstract

The invention relates to the technical field of mobile communication, and discloses a method and a device for synchronizing and measuring GSM neighboring regions in a GSM exclusive-OR mode. For a measurement GAP of which the length is at least nine GSM time slots and the cycle is 240 or about a few milliseconds, a FB search or SB search measurement task is configured in a measurement gap of which the first purpose is InitBSIC. During realization of ensuring continuous GAPs required for search with one FB, the initial continuous GAPs are configured with all length of the measurement GAP to perform a data receiving task of FB search or SB search, and the subsequent GAPs are configured with nine GSM time slots to the right in the length of the measurement GAP to perform a data receiving task of FB search or SB search. Through the GAP resource using strategy and receiving task configuration, redundancy data reception can be eliminated, the processing load of a terminal can be reduced, and the accuracy and timeliness of neighboring region measurement can be improved.

Description

GSM neighbor synchronization and method of measurement and device in GSM or anomalous mode formula

Technical field

The present invention relates to mobile communication technology field, particularly GSM neighbor synchronization and method of measurement and device in GSM or anomalous mode formula.

Background technology

GSM (global system for mobile communications, Global System for Mobile communication) is second generation mobile communication system (2G), and this system supporting language and low-speed data service, network coverage widely.TD_SCDMA (TD SDMA, Time Division Synchronous CodeDivision Multiple Access) be 3-G (Generation Three mobile communication system) (3G), relative to gsm system, more high data rate can be provided, domesticly at present carry out Large scale construction, but its network coverage also reaches far away the level of gsm system.In addition, also there is the mobile communication system such as Wideband Code Division Multiple Access (WCDMA) (WCDMA), Long Term Evolution (LTE), also can provide more high data rate, its network coverage also also reaches far away the level of gsm system.Given this, utilize the network coverage of GSM network expansion except GSM, the continuity keeping 3G subscription to experience becomes the essential scheme of mobile operator.It requires that network and terminal support the switching under cell reselection under idle pulley between different system (comprising TD_SCDMA, WCDMA, LTE etc.) and gsm system and connection mode between different system and gsm system.In current third generation partnership projects (3GPP) international norm and domestic industry standard, define the two-film technique specification supporting different system and GSM all fairly perfectly.The feature of dual-mode terminal can work in different system and these two communication systems of GSM, and terminal is under standby (idle pulley) or service condition (connection mode) of a system, can monitor/monitor the information of another system.Under meeting some requirements, terminal can independently be carried out cell reselection or be switched in another system.Judge to have ready conditions, terminal must carry out isosystem measurement to another one system.

The type that multimode terminal is measured GSM adjacent area under different system idles or connection mode is divided into RSSI (received signal strength indicator, Received Signal Strength Indicator) measure and BSIC (base station identity code, Base Station Identity Code) confirmatory measurement two kinds.BSIC confirmatory measurement is divided into initial BSIC to identify, and (InitBSIC) and BSIC heavily confirm (ReBSIC) two processes.In gsm system, BSIC is transmitted by synchronizing channel (SCH).Initial BSIC identifying is terminal catching for the first time to the SCH of certain GSM adjacent area under different grid, and can obtain frame synchronization and the multi-frame synchronization information of this GSM adjacent area, terminal does not have any timing synchronisation information of GSM adjacent area before this.Terminal is once confirm to there is this GSM adjacent area by the initial identification process of BSIC, and terminal will preserve the timing synchronisation information of this GSM adjacent area in inside.Then, terminal heavily confirms process by BSIC, reaffirms the BSIC of this GSM adjacent area in certain time interval, for cell reselection or switch ready.

Gsm system adopts time division multiple access (TDMA) technology, and its wireless frame structure is divided into Hyperframe, superframe, multi-frame, frame and time slot five levels.GSM frame was also called tdma frame, the corresponding System Frame Number FN of every frame, with 2715648(about 3.5 hours) for loop cycle numbering.Wherein, every frame duration is that 60/13ms(is about 4.615ms), comprise 8 time slots (TS0-7), each slot length is 156.25bits, is about 0.577ms.GSM frame structure as shown in Figure 1.

What carry SCH in GSM is Synchronization Burst sequence in 51 multi-frames (Synchronization Burst is called for short " SB "), and be arranged on the TS0 of 1,11,21,31,41 frames, position such as shade in Fig. 2 indicates.Wherein, the time span of SB is: t _sB=15/26ms.

GSM dedicated mode(voice mode) under use 26 multi-frames, as shown in Figure 3; Have 1 idle frame (idle frame) in every 26 frames, for Full rate Speech TCH (TCH/FS) and half rate speech Traffic Channel (TCH/HS), idle frame position is different.

GSM Packet transfer mode(packet transfer mode) under use 52 multi-frames, as shown in Figure 4,12 wireless resource blocks (Radio block, B0-B11) are had, 2 idle frames (X) and 2 frames for upstream packet timing control channels (PTCCH) (T) in 52 frames.

According to characteristic and the frame structure of different system and gsm system, the rssi measurement of GSM realizes very simple, repeats no more herein, only relates to BSIC confirmatory measurement.Dual-mode terminal is described below the general process that BSIC confirmatory measurement is carried out in GSM adjacent area under different system idles or connection mode:

First, search rate correction channel (FCCH) on the main carrier of GSM adjacent area, calculates and adjusts the frequency deviation between terminal and base station, determines the timing of FCCH frame.

Then, according to the relativeness that GSM controls FCCH and SCH timing in multi-frame structure, receive SCH, decoding is carried out to SCH channel, obtains synchronizing information and the BSIC information of this GSM adjacent area.

Due to asynchronous between different system base-station and GSM base station, frame length is not identical yet, and the top priority of carrying out BSIC confirmatory measurement under anomalous mode formula (comprising TD_SCDMA, WCDMA, LTE etc.) catches FCCH/SCH (namely obtaining the reception timing of FCCH/SCH).If adopt double-receiver framework, namely dual-mode terminal can receive the signal of different system and gsm system simultaneously, then realize relatively simple, but the cost of terminal is relatively high.In order to reduce costs, be generally more prone to use single-receiver framework, namely can only receive the signal of a wireless system, multimode terminal needs to utilize the free timeslot in anomalous mode formula frame structure to receive GSM signal simultaneously.Measure GAP and refer to the idle window that at least 10 GSM time slots are long, for GSM mode, be made up of the idle frame of the idle frame in 26 multi-frames or 52 multi-frames and its contiguous traffic frame; For anomalous mode formula, for GSM neighbor synchronization and measurement GAP, comprise at least 10 time slots, specifically see 3GPP specification:

Have 40ms, 80ms cycle under LTE pattern, length is that the measurenment gap(of 6ms measures time slot), see 3GPP TS 36.133, section 8.1.2.4.5.1.1;

Under WCDMA mode, forward access channel (FACH) under cell forward access channel (CELL_FACH) measures occasion (Measurement Occasion), cycle have 80 to 1920ms(can see Table 8.13,3GPP TS 25.133, section 8.4.2.5.2.1), length is 10,20,40,80ms(can see Table 8.10A, 3GPP TS 25.133, section 8.4.2.1); Under cell private channel (CELL_DCH), the GAP of rssi measurement purposes can see Table 8.3(3GPP TS 25.133 section 8.1.2.5.1), the GAP of InitBSIC purposes can see Table 8.7(3GPP TS 25.133, section 8.1.2.5.2.1), the GAP of ReBSIC purposes can see Table 8.8(3GPP TS 25.133, section 8.1.2.5.2.2);

TD-SCDMA is used for the long GAP of GSM neighbor synchronization, the 9th of 3GPP agreement the is only had to issue version (Release9, being called for short " R9 ") idle interval (idle interval) that just has can see 3GPP TS 25.331-9e0, section 8.6.7.25, cycle is 40ms or 80ms, length is 10ms) and CELL_DCH measure occasion (measurement occasion) can see 3GPP TS 25.331-9e0, section 8.5.11a.

In existing GSM neighbor synchronization and measurement scheme, at GSM dedicated mode(voice mode) under, each traffic frame has the idle window of continuous 4 time slots and continuous 2 time slots, in current realization, in gsm system, neighbor synchronization (InitBSIC) only uses idle frame (Idle frame) and 1 coupled free timeslot (totally 9 time slots), has 3 time slots not for InitBSIC.At GSM Packet transfer mode(packet transfer mode) under because business time-slot configuration is many, change is fast, InitBSIC only uses continuous 11 9 time slots containing the same position of idle frame.

GSM mode as holotype or auxiliary pattern carry out neighbor synchronization in current physical layer multimode framework and measure flow process be much multiplexing.Along with the increase of automatic multimode terminal support mode, the GAP type that other wireless access technology (RAT) pattern is distributed to GSM mode also gets more and more, except WCDMA indicates except the purposes of each GAP in CELL_DCH lower network, other the terminal that all needs plans purposes according to nearby region measurement situation in pattern, between pattern; Anomalous mode formula distributes to the measurement GAP of GSM mode, needs to plan different GAP or GAP sequences by the different purposes of InitBSIC, RSSI and ReBSIC again.For the GAP sequence of InitBSIC purposes, if 240ms(or its approximate number 120,80,40,30) cycle, length is that 9 GSM time slots (have deducted protection interval, lower same) more than, if each GAP still uses 9 time slots, although realize simple unified, the requirement of protocol much cannot be met; Receive if each GAP data are full, can accelerate InitBSIC process, realize also very simple, but receiving data is a lot redundancy, the longer redundancy reception of GAP is more obvious.

Summary of the invention

The object of the present invention is to provide GSM neighbor synchronization and method of measurement and device in a kind of GSM or anomalous mode formula, make GSM neighbor synchronization be able to effective maintenance, and improve accuracy and the promptness of GSM nearby region measurement.

For solving the problems of the technologies described above, embodiments of the present invention provide GSM neighbor synchronization and method of measurement in a kind of GSM or anomalous mode formula, comprise following steps:

According to the different purposes receiving data under the business of different mode, determine to measure time slot GAP resource usage policy, and carry out the configuration of GSM downlink reception task;

Wherein, the length of described measurement GAP be at least 9 GSM time slots, and described to measure cycle of GAP be 240 or its approximate number millisecond;

The first purposes be base station identity code initially confirm InitBSIC measurement GAP in configuration frequency correct burst sequence FB search or Synchronization Burst sequence SB searches for measurement task;

Realizing in the continuous GAP number K that FB ensures required for search, an initial continuous j GAP, configuration is all measured GAP length and is carried out the data receiver task that FB search or SB search for; K-j follow-up GAP, configures the data receiver task that 9 GSM time slots of keeping right in described measurement GAP length carry out FB search or SB search; The value of described K and described j is determined jointly according to the described measurement length of GAP and the cycle of described measurement GAP.

Embodiments of the present invention additionally provide GSM neighbor synchronization and measurement mechanism in a kind of GSM or anomalous mode formula, comprise: GAP resource usage policy determination module, reception task configuration module;

Described GAP resource usage policy determination module is used for according to the different purposes receiving data under the business of different mode, determines to measure time slot GAP resource usage policy, and carries out the configuration of GSM downlink reception task for described reception task configuration module;

Described reception task configuration module the first purposes be base station identity code initially confirm InitBSIC measurement GAP in configuration frequency correct burst sequence FB search or Synchronization Burst sequence SB searches for measurement task;

Described reception task configuration module is realizing in the continuous GAP number K that FB ensures required for search, an initial continuous j GAP, and configuration is all measured GAP length and carried out the data receiver task that FB search or SB search for; K-j follow-up GAP, configures the data receiver task that 9 GSM time slots of keeping right in described measurement GAP length carry out FB search or SB search; The value of described K and described j is determined jointly according to the described measurement length of GAP and the cycle of described measurement GAP.

Embodiment of the present invention in terms of existing technologies, according to the different purposes receiving data under the business of different mode, is determined to measure time slot GAP resource usage policy, and is carried out the configuration of GSM downlink reception task; Be at least 9 GSM time slots for length, and the cycle is the measurement GAP of 240 or its approximate number millisecond, in the first purposes be InitBSIC measurement GAP in configure FB search or SB searches for measurement task, and realizing in the continuous GAP number required for a FB guarantee search, initial continuous and several GAP, the data receiver task that GAP length carries out FB search or SB search is all measured in configuration; 9 GSM time slots of keeping right in follow-up GAP, allocating and measuring GAP length carry out the data receiver task of FB search or SB search.By above-mentioned GAP resource usage policy and the configuration of the task of reception, the reception of redundant data can be eliminated, reduce the process load of terminal, thus improve accuracy and the promptness of nearby region measurement.

In addition, in K-j continuous in the rear GAP, configure while turning left 9 GSM time slots from GAP right margin in described measurement GAP length, also task configuration received as follows to remaining GSM time slot:

Check whether described remaining GSM time slot is set to not configure reception task, in this way, then directly carry out FB or SB search reception task from GAP right margin 9 GSM time slots of turning left in described the measurements GAP length of configuration; As no, then each frequency of first searching loop ReBSIC queue, if the timing being checked through frequency drops in described remaining GSM time slot, the ReBSIC then configuring described frequency receives task, then in the vacant position of described remaining GSM time slot, the RSSI that configuration not yet completes the adjacent area frequency of epicycle sampling receives task, to turn left 9 GSM time slot configuration FB or SB search reception task afterwards in described measurements GAP length from GAP right margin.

Vacant by the GAP time slot that will be used for FB or SB measurement task, effectively can reduce the process load under different mode business; Or RSSI and ReBSIC that the GAP time slot not being used for FB or SB measurement task is used for GSM adjacent area is measured, then effectively can maintain accuracy, the promptness of GSM neighbor synchronization and raising nearby region measurement further.

In addition, described measurement GAP resource usage policy comprises:

When a) carrying out measuring in system under the business of GSM, in the long GAP of idle frame idle frame position, preferentially for InitBSIC; Remaining, heavily confirm ReBSIC by first base station identity code, rear received signal strength indicator calculates using in order of RSSI;

B) in WCDMA mode, indicate in CELL_DCH lower network be InitBSIC purposes long GAP in, 9 GSM time slots priority of keeping right are for InitBSIC; Position not for InitBSIC in long GAP, by first ReBSIC, rear RSSI uses in order;

C) in LTE or TDSCDMA pattern, in conjunction with each pattern frequency number situation, select to carry out InitBSIC by the GAP in 120 behind 40 or 80ms cycle or periodic sampling, 240ms cycle according to protocol requirement, first ReBSIC is pressed in position not for InitBSIC in long GAP, and rear RSSI uses in order; Then remaining GAP, preferential ReBSIC are RSSI.

By above-mentioned measurement GAP resource usage policy, preferentially be used for carrying out InitBSIC by measurement GAP, that is, the first purposes measuring GAP is set as InitBSIC, namely obtain synchronizing information and the BSIC information of GSM adjacent area, can improve accuracy, the promptness of nearby region measurement further.

In addition, in the step of carrying out the configuration of GSM downlink reception task, following sub-step is comprised:

If calculate according to frame number and determine that next frame has measurement GAP to occur, then judge whether first purposes of described measurement GAP is set as InitBSIC, in this way, then:

According to described GAP cycle and described GAP length, obtain the value of described K and j, and determine GAP side-play amount GAP_offset; Wherein, described GAP_offset is in described follow-up K-j GAP, the amount offset from GAP head when adopting 9 GSM time slots of keeping right to carry out the data receiver of FB search or SB search;

Judge whether InitBSIC queue frequency number is greater than zero;

If InitBSIC queue frequency number is greater than zero, then FB or the SB search of more current frequency receives the size of number of times and K and j;

If FB or the SB search of current frequency receives number of times be greater than or equal to j, and GAP_offset is 0, or FB or the SB search reception number of times of current frequency is less than j, then press GAP physical length configuration FB or SB from GAP head without skew and search for reception task;

If FB or the SB search of current frequency receives number of times be greater than or equal to j, and GAP_offset is not 0, then configure FB or the SB search reception task of 9 GSM time slots from GAP head skew GAP_offset.

Reception task is searched for by FB or SB configuring 9 GSM time slots from GAP head skew GAP_offset, on the one hand can under GSM voice service state, each GAP receives the probability at least improving 2/9 to shift to an earlier date 120ms and finds FB; On the other hand, the GSM synchrodata eliminating redundancy in the GSM synchronizing process under different mode business receives, thus can improve accuracy, the promptness of nearby region measurement.

In addition, the value of described K, j and GAP_offset is obtained by following steps:

According to described GAP cycle and described GAP length, look into emulate in advance obtain the GAP cycle, GAP length and K mapping table obtain K value; Wherein, described mapping table all uses whole GAP length to receive by simulation calculation at every turn, realizes a FB and ensures that the continuous GAP number K required for search obtains;

Judge that whether the described GAP cycle is 240 or its approximate number 120,80,60,40,30;

In this way, then described GAP length (8 × n+m) individual GSM time slot is represented, calculate described n and m value;

And judge whether described GAP length is greater than 9 GSM time slots;

If described GAP length is greater than 9 GSM time slots, then obtain j value, by (8 × (n-1)+(m-1)) individual GSM time slot as GAP_offset by 240 divided by the GAP cycle;

If described GAP length is not more than 9 GSM time slots, then the value of j is the value of 1, GAP_offset is 0.

Received by the full GAP of an initial j GAP, can guarantee that receiving data can not fall to falling FB or SB, improves the accuracy of nearby region measurement further; By the reception of a continuous K GAP, the guarantee search realizing FB or SB can be guaranteed, improve the accuracy of nearby region measurement further.

In addition, be greater than after zero at judgement InitBSIC queue frequency number, before FB or the SB search of more current frequency receives the size of number of times and K and j, also comprise following sub-step:

Check whether described InitBSIC queue first frequency have found FB synchronous, as no, then the FB search of more current frequency receives the size of number of times and K and j, the FB search of frequency before the trade of going forward side by side; In this way, then calculate the receiving position of SB according to FB synchronizing information, configuration SB receives task.

For the frequency finding FB synchronizing information, no longer carry out FB and search for the configuration of reception task, directly carry out SB and receive task configuration, and the measurement task configuration of follow-up ReBSIC and RSSI, accuracy, the promptness of nearby region measurement can be improved further.

In addition, described method is applied to the single-mode terminal supporting gsm system;

Or described method is applied to supports gsm system and the automatic multimode terminal at least supporting a system in TD-SCDMA, WCDMA or LTE.The present invention has wide range of applications, in GSM or anomalous mode formula, GSM neighbor synchronization and measurement provide more more options.

Accompanying drawing explanation

Fig. 1 is GSM time division multiple access (TDMA) frame structure schematic diagram;

Fig. 2 is the position view of SB on 51 multi-frames in GSM;

Fig. 3 be in GSM 26 multi-frames for the schematic diagram of Full rate Speech TCH (TCH/FS) and half rate speech Traffic Channel (TCH/HS);

Fig. 4 be in GSM 52 multi-frames for the schematic diagram of Packet Data Channel (PDCH);

Fig. 5 is that the continuous GAP in 240ms cycle receives 9 timeslot numbers factually now to GSM frame continuous print data receiver schematic diagram;

Fig. 6 is the GSM downlink reception task configuration flow figure according to GSM neighbor synchronization and method of measurement in the GSM of first embodiment of the invention or anomalous mode formula;

Fig. 7 is the flow chart according to GSM neighbor synchronization and method of measurement in the GSM of first embodiment of the invention or anomalous mode formula;

Fig. 8 is the flow chart according to a concrete example of GSM neighbor synchronization and method of measurement in the GSM of first embodiment of the invention or anomalous mode formula;

Fig. 9 (a) is the schematic diagram having the full GAP of the GAP of 17 GSM slot lengths to receive;

Fig. 9 (b) has the GAP of 17 GSM slot lengths only with the schematic diagram of wherein 9 time slot receptions;

Figure 10 has the GAP of 17 GSM slot lengths to adopt the punching strategy of first embodiment of the invention to carry out the schematic diagram received;

Figure 11 (a) is that lower 9 time slots of the voice service of GSM receive schematic diagram;

Figure 11 (b) is the schematic diagram that lower 12 time slots of the voice service of GSM adopt the punching strategy of first embodiment of the invention to carry out receiving;

Figure 12 receives the flow chart of data processing figure after data according to GSM neighbor synchronization in the GSM of first embodiment of the invention or anomalous mode formula and method of measurement.

Embodiment

For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the embodiments of the present invention are explained in detail.But, persons of ordinary skill in the art may appreciate that in each execution mode of the present invention, proposing many ins and outs to make reader understand the application better.But, even without these ins and outs with based on the many variations of following execution mode and amendment, each claim of the application technical scheme required for protection also can be realized.

First execution mode of the present invention relates to GSM neighbor synchronization and method of measurement in a kind of GSM or anomalous mode formula, the method is according to the different purposes receiving data under the business of different mode, determine to measure time slot (GAP) resource usage policy, and carry out the configuration of GSM downlink reception task; Be at least 9 GSM time slots for length, and the cycle is the measurement GAP of 240 or its approximate number millisecond, the first purposes be base station identity code BSIC initially confirm (InitBSIC) measurement GAP in configuration frequency correct burst sequence (FB) search or Synchronization Burst sequence (SB) searches for measurement task; Further, realizing in the continuous GAP number that FB ensures required for search, initial continuous several GAP, the data receiver task that GAP length carries out FB search or SB search is all measured in configuration; In follow-up GAP, allocating and measuring GAP length from GAP right margin turn left (namely keeping right) 9 GSM time slots carry out FB search or SB search data receiver task.By above-mentioned GAP resource usage policy and the configuration of the task of reception, the reception of redundant data can be eliminated, reduce the process load of terminal, thus improve accuracy and the promptness of nearby region measurement.The method can be applied to supports the single-mode terminal of gsm system, or supports gsm system and at least support the automatic multimode terminal of a system in TD-SCDMA, WCDMA or LTE.

Use length at least 9 GSM time slots under gsm service or different mode business and the cycle GAP that is 240ms or its approximate number (120,80,60,40,30) carries out GSM neighbor synchronization and measurement comprises several key point below, be described as follows respectively:

1) FB of GAP ensures that the continuous GAP number K that search (FB guaranteed search) needs calculates.By the reception of a continuous K GAP, the guarantee search realizing FB or SB can be guaranteed, improve the accuracy of nearby region measurement further.Below be specifically described:

If under standing-by state, the 89 time slot long datas receiving adjacent area carrier wave continuously just can find SB; And present embodiment is blind under business state looking for, the timeslice not having 89 time slots so to grow, only has and slides window with the measurement GAP being dispersed in traffic frame and look for synchronously.For gsm service state, use 26 multi-frames when doing business, BCCH broadcast in adjacent area is 51 multi-frames all the time, 26 and 51 is relatively prime, receives the data of 51 multi-frames with fixed position in 26 multi-frames, and each position of receiving 51 multi-frames can be different, receive 9 time slots as long as each, just can find for 11 times synchronously so continuously; That is, each GAP receives the data that in 51 multi-frames, 1 frame is many, and this position correspondence has corresponding frame number in 51 multi-frames, the frame number that 11 correspondences are different.

Suppose that the frame head of GSM community the 1st frame aligns with the 1st GAP head of GAP sequence, so using continuous GAP(at least 9 time slots long) position that receives in the frame of C0 carrier data Gai GSM community, GSM community is as shown in table 1, in table, GAP number is GAP numbering, from 0 to 59; Frame in 51-multiframe (fn) is the frame in 51 multi-frames, from 0 to 50 numbering.Frame in 51-multiframe (fn) is the result of GSM actual frame number FN mould 51, in actual environment, GSM not necessarily aligns with the frame head of its adjacent area, if the actual frame number of GSM and hypothesis frame number difference N, frame header deviation difference is Offset, so there is following relation:

Fn+n=(FN+N) %51, and fn+n<51;

The frame bias internal value receiving data is Offset, wherein Offset<60/13ms.

As seen from Table 1, continuous print 11 GAP positions can cover 11 GSM frame number of equivalence, as long as each 9 time slots receiving GSM, just can ensure that before and after frame number continuous print, 2 receptions are guarded both ends, as shown in Figure 5; As long as the GSM adjacent area of this frequency exists really, so must find complete FB in 11 such reception data, namely: are 1 FB guaranteed search with continuous 11 receptions of 9 of the 240ms cycle long GAP of GSM time slot.In addition, the explanation of value, if GAP cycle or 240ms, but GAP length only has 7 GSM time slots, and no matter so finally slide how many GAP continuously, all cannot obtain 1 FB guaranteed search.

Table 1

In addition, if the length of GAP is greater than 9 GSM time slots, the continuous print GAP that can be less than 11 times so completing 1 FB guaranteed search receives.Such as: the length of GAP is 33 GSM time slots (about 20ms), and each GAP can receive the data that 4 frames add 1 time slot, the continuous print GAP of 8 times receives is exactly 1 FB guaranteed search.But, if the length of GAP is 16 GSM time slots, the data of the more than enough receipts of energy 7 time slots at every turn, but 1 FB guaranteed search still needs the continuous print GAP of 11 times to receive; But, because each many data receiving 7 time slots backward, therefore, be all equivalent to have the probability of 7/9 can shift to an earlier date 240ms at every turn and find FB.

Realize the continuous GAP number K required for a FB guarantee search, whole GAP length all can be used to receive by simulation calculation, required GAP number obtains at every turn; Table 2 lists several simulation result, and the GAP of other cycles and length needs simulation calculation to obtain this K value.

Table 2

The GAP cycle (ms)	GAP length (ms)	K
			240	6	11
240	20	8
			120	6	11
80	6	13
			40	6	19

2) the InitBSIC(FB search under business), the GAP resource usage policy of RSSI, ReBSIC, comprise:

When a) carrying out measuring in system under the business of GSM, in the long GAP of idle frame idle frame position, preferentially for InitBSIC; Remaining, heavily confirm ReBSIC by first BSIC, rear received signal strength indicator calculates using in order of RSSI;

By above-mentioned measurement GAP resource usage policy, preferentially be used for carrying out InitBSIC by measurement GAP, that is, the first purposes measuring GAP is set as InitBSIC, namely obtain synchronizing information and the BSIC information of GSM adjacent area, can improve accuracy, the promptness of nearby region measurement further.In addition, it should be noted that, long GAP is preferentially for carrying out InitBSIC, and remaining GAP can specifically set as required, does not list one by one at this.

3) GSM downlink reception task configuration:

GSM receives task and shifts to an earlier date 1 frame configuration, if find that next frame measures GAP at present frame, so according to the purposes measuring GAP setting, carries out the configuration of reception task.Idiographic flow as shown in Figure 6, comprises following steps:

Step 601, checks whether the next frame of GSM has and measures GAP appearance, in this way, then perform step 602; As no, then terminate the configuration of GSM downlink reception task.

Step 602, judges whether the purposes measuring GAP is set as InitBSIC, in this way, then performs step 603; As no, then perform step 604.

Step 603, configures FB and searches for measurement task in GAP, then terminate the configuration of GSM downlink reception task.

The explanation of value, can carry out the measurement tasks such as InitBSIC, reBSIC, RSSI in said measurement GAP in above-mentioned steps 601, measures GAP and can be set as first carrying out InitBSIC, then carry out reBSIC, RSSI; That is, the first purposes measuring GAP is set as InitBSIC, when not needing to carry out InitBSIC measurement, then carries out reBSIC measurement, rssi measurement.Set and configure FB search in measurement GAP that the first purposes is InitBSIC and measure the flow process of task as shown in Figure 7, specifically comprise following steps:

Step 701 is identical with step 601, checks whether the next frame of GSM has and measures GAP appearance, in this way, then perform step 702; As no, then terminate the configuration of GSM downlink reception task.

Step 702, judges whether the first purposes measuring GAP is set as InitBSIC, in this way, then performs step 703; As no, then perform step 711 and 712.

Step 703, according to GAP cycle and GAP length, obtains the value of K and j, and determines GAP side-play amount GAP_offset; Wherein, GAP_offset is in a follow-up K-j GAP, the amount offset from GAP head when adopting 9 GSM time slots of keeping right to carry out the data receiver of FB search or SB search.

The value of K, j and GAP_offset can be obtained by following steps:

According to GAP cycle and GAP length, look into emulate in advance obtain the GAP cycle, GAP length and K mapping table obtain K value (see table 2);

Judge that whether the GAP cycle is 240 or its approximate number 120,80,60,40,30;

In this way, then GAP length (8 × n+m) individual GSM time slot is represented, calculate n and m value;

And judge whether GAP length is greater than 9 GSM time slots;

If GAP length is greater than 9 GSM time slots, then obtain j value, by (8 × (n-1)+(m-1)) individual GSM time slot as GAP_offset by 240 divided by the GAP cycle;

If GAP length is not more than 9 GSM time slots, then the value of j is the value of 1, GAP_offset is 0.That is, if inadequate 9 GSM time slots, then the scheme of present embodiment is not adopted.

Step 704, judges whether InitBSIC queue frequency number is greater than zero; In this way, then perform step 705 to 710, complete the configuration that FB or SB searches for reception task; As no, then perform the measurement task configuration that step 711 and 712 carries out ReBSIC and RSSI.

Specifically, if InitBSIC queue frequency number is greater than zero, then FB or the SB search of more current frequency receives the size of number of times and K and j.First judge that FB or the SB search of current frequency receives number of times and whether reaches K time, if reached K time, then current frequency is deleted from InitBSIC queue, the frequency number of queue subtracts 1, and returns execution step 704.If do not reached K time, then continue to judge that FB or the SB search of current frequency receives number of times and whether is less than j, and configure FB or SB search reception task according to GAP_offset.If FB or the SB search of current frequency receives number of times be greater than or equal to j, and GAP_offset is 0, or FB or the SB search reception number of times of current frequency is less than j, then press GAP physical length configuration FB or SB from GAP head without skew and search for reception task.If FB or the SB search of current frequency receives number of times be greater than or equal to j, and GAP_offset is not 0, then configure FB or the SB search reception task of 9 GSM time slots from GAP head skew GAP_offset.

If it is determined that InitBSIC queue frequency number is not more than zero, then each frequency of searching loop ReBSIC queue, if the timing being checked through frequency drops in GAP, the ReBSIC of configuration frequency receives task, then at the residue empty position of GAP, the RSSI that configuration not yet completes the adjacent area frequency of epicycle sampling receives task.

If measure the purposes of GAP be not set as InitBSIC, follow-uply to judge and configuration to the measurement task that 606 carry out ReBSIC and RSSI in step 604, specific as follows:

Step 604, judges whether the purposes measuring GAP is set as ReBSIC, in this way, then performs step 605; As no, then perform step 606.

Step 605, configures ReBSIC and measures task in GAP, specifically, each frequency of searching loop ReBSIC queue, checks the timing information of frequency; If find that the residue empty position of current GAP can configure the SB reception of certain frequency, then configure reception task, and from ReBSIC queue, frequency is rejected.

Step 606, configures rssi measurement task in GAP, that is, the residue empty position of current GAP, the RSSI then configuring the adjacent area frequency not yet completing epicycle sampling receives task.

That is, in the present embodiment, first GAP length is that particle calculates by the time slot of GSM, is expressed as 8*n+m time slot (n>=1, m>=0); Then, table look-up the continuous GAP number K finding the long GAP reception of 8*n+m the time slot of simulation calculation use in advance to realize the needs of " the guaranteed search " of FB; Then, when the task configuration receiving data, the initial continuous j(j=240/GAP cycle, as 80ms cycle j=3) the full GAP of individual GAP use, namely (8*n+m) individual GSM time slot is long receives, and a follow-up K-j GAP is divided into two sections: RSSI and ReBSIC that front 8*(n-1)+(m-1) individual time slot can be used for GSM adjacent area measures, after remaining 9 time slots for receiving FB.If GAP physical length is not be just the integral multiple of GSM time slot, the part of so inadequate 1 GSM time slot is included into and uses the last period.

The above-mentioned initial continuous j(j=240/GAP cycle, as 80ms cycle j=3) individual GAP, use 8*n+m slot length to receive.Received by the full GAP of an initial j GAP, can guarantee that receiving data can not fall to falling FB or SB, improves the accuracy of nearby region measurement further.If GAP is used for same frequency continuously, j value shows have j bar searching route to walk abreast simultaneously; If GAP is used for different frequent points, so GAP sequence is sampled through 1/j, and independently synchronous searching route is parallel separately can j frequency, and certain cycle is elongated, and now corresponding j value is just different; Table 3 lists the j value that several cycle is the measurement GAP of 240ms approximate number.

Table 3

The GAP cycle (ms)	j
		120	2
80	3
		60	4
40	6
		30	8

K-j follow-up GAP is divided into two sections: be 8*(n-1 above)+(m-1) individual time slot, be 9 remaining time slots below, only use 9 time slots to be below used for the data receiver of FB searching, this method of reseptance, be referred to as GAP punching (GAP Punching) method herein.Table 4 is several timeslot number that can punch for FB searching measurement GAP under listing the 240ms cycle.

Table 4

GAP length (ms)	The GSM timeslot number (individual) that each GAP comprises	The GSM timeslot number (individual) of being struck off
			6	10=8*1+2	1
10	17=8*2+1	8
			20	34=8*4+2	25
40	69=8*8+5	60

Front 8*(n-1)+(m-1) individual time slot RSSI and ReBSIC of can be used for GSM adjacent area measure, or simply vacant not in order to reach the object of the process load under reduction business; That is, the GSM time slot of being struck off may be used for GSM adjacent area RSSI and ReBSIC measure, also can vacant need not.In a follow-up K-j GAP, while turning left 9 GSM time slots from GAP right margin in allocating and measuring GAP length, also task configuration is received as follows to remaining GSM time slot:

Check whether remaining GSM time slot is set to not configure reception task, in this way, then directly carry out FB or SB search for reception task from GAP right margin 9 GSM time slots of turning left in allocating and measuring GAP length; As no, then each frequency of first searching loop ReBSIC queue, if the timing being checked through frequency drops in remaining GSM time slot, the ReBSIC then configuring frequency receives task, then in the vacant position of remaining GSM time slot, the RSSI that configuration not yet completes the adjacent area frequency of epicycle sampling receives task, searches for reception task afterwards in measurement GAP length from GAP right margin 9 the GSM time slot configuration FB or SB that turn left.

Specifically, as shown in Figure 8, judging that FB or the SB search of current frequency receives number of times and is greater than or equal to j, and GAP_offset is not after 0, before FB or SB configuring 9 GSM time slots from GAP head skew GAP_offset searches for reception task, also comprise following sub-step:

Check whether GAP head is set to not configure reception task to GAP_offset, in this way, then direct FB or the SB search reception task configuring 9 GSM time slots from GAP head skew GAP_offset; As no, then each frequency of first searching loop ReBSIC queue, if the timing being checked through frequency drops between GAP head to GAP_offset, the ReBSIC then configuring frequency receives task, then the vacant position between GAP head to GAP_offset, the RSSI that configuration not yet completes the adjacent area frequency of epicycle sampling receives task, configures FB or the SB search reception task of 9 GSM time slots afterwards again from GAP head skew GAP_offset.

Below the strategy of punching is specifically described:

With GAP cycle 240ms, GAP length is 17 GSM time slots is example, and 1 FB guaranteed search only needs the continuous print GAP of 10 times to receive, and sees Fig. 9 (a).In figure, 9 (a) and 9 (b) compares, and clearly, 1 frame (8 time slots) data of the more than enough receipts of each energy of Fig. 9 (a), except the 1st reception, follow-up reception for 9 times has the data of 1 whole frame to repeat to receive.If just the 1st GAP receives 17 time slots, the GAP of the 2 to the 10 time is received the adjustment done as Figure 10, be equivalent to punch to reception GAP, by punching, the position of repeating to receive is destroyed, finally still can ensure the identical FB searching effect with Fig. 9 (a).

In addition, under the CS business of GSM, if use Idle frame and coupled free timeslot totally 12 time slots in 120ms cycle, continuous 11 Idle frame are 1 FB " guaranteed search ".Initial 2 GAP full GAP of 12 time slots receives, and the starting point that follow-up 9 GAP receive is all from frame head toward retrodeviating 3 time slots, and reality only uses 9 time slots to receive, as Figure 11 (a) and 11(b) shown in.

Adopt the strategy of above-mentioned punching to carry out the reception of measurement task, following effect can be reached:

(1) under GSM dedicated mode, when using the idle window of idle frame position to carry out neighbor synchronization (InitBSIC) data receiver of maximum 11 times, initial reception for 2 times uses the GAP of 12 free timeslots of idle frame and coupled 4 free timeslot composition to carry out synchrodata reception, in receiving for follow-up 9 times, front 3 time slots of GAP are used for RSSI, ReBSIC purposes, only make the data receiver of neighbor synchronization (InitBSIC) of keep right 9 time slots of GAP.Like this, GAP length expands as 12 GSM time slots (not deducting radio frequency protection interval) from 9 time slots (having deducted radio frequency protection interval), compared with original mode, each GAP receives the probability (suppose that radio frequency protection is spaced apart 1 GSM time slot) at least improving 2/9 to shift to an earlier date 120ms and finds FB; Thus accuracy, the promptness of nearby region measurement can be improved.

(2) anomalous mode formula (TDSCDMA/WCDMA/LTE) distributes to the measurement GAP that GSM mode carries out neighbor synchronization under business, when the cycle be 240ms or its approximate number (120,80,60,40,30) time, the strategy of punching (GAP Punching) is adopted to receive, the GSM synchrodata can eliminating redundancy in GSM synchronizing process under different mode business receives, if it is vacant to optimize the GAP saved, the process load under different mode business effectively can be reduced; Be used for RSSI and ReBSIC of GSM adjacent area measure if optimize the GAP saved, then effectively can maintain accuracy, the promptness of GSM neighbor synchronization and raising nearby region measurement.

(3) WCDMA (network) under CELL_DCH distributes to that pattern 5, the pattern 6 of initBSIC purposes are carried out in GSM adjacent area, the measurement GAP(of pattern 7 is shown in 3GPP 25.133, section 8.1.2.5Table 8.7), the synchrodata being used further to initBSIC after the punching of this programme receives, and the part (about 7 GSM time slots) that GAP destroys may be used for the GSM nearby region measurement of two another the non-WCDMA card of biding one's time of W (W/G)+G (T/G).

(4) more obvious for the longer effect of optimization of GAP length, the situation of inadequate 9 the GSM time slots of the complete compatible GAP length of this measurement optimization device; Also the compatible GAP cycle be not 240,120,80,40, the situation of 30ms.Specifically, as shown in Figure 8, when checking GAP cycle, if the GAP cycle is not 240,120,80,40,30ms, so direct is 1 by j value, GAP_offset value is 0, follow-up carry out reception task configuration time, due to j=1, GAP_offset=0, cause searching for reception task without skew by GAP physical length configuration FB or SB from GAP head, this is just consistent with prior art, be all that full GAP carries out FB or SB and searches for reception task, the therefore yet just compatible GAP cycle be not 240,120,80,40, the situation of 30ms.

(5) implementation method is general, reliable, simple, does not need to be calculated by the algorithm of complexity, and more not needing increases hardware cost.

In addition, one of value is carried, and is greater than after zero, before FB or the SB search of more current frequency receives the size of number of times and K and j, also comprises following sub-step at judgement InitBSIC queue frequency number:

Check whether InitBSIC queue first frequency have found FB synchronous, as no, then the FB search of more current frequency receives the size of number of times and K and j, the FB search of frequency before the trade of going forward side by side; In this way, then calculate the receiving position of SB according to FB synchronizing information, configuration SB receives task.Namely, calculate SB reception according to FB synchronizing information and whether drop in current GAP, if there is SB receiving position, so configures SB and receive.Such as, if the GAP cycle is the same position necessarily SB of the next GAP after 240ms, FB success; If the GAP cycle is the same position necessarily SB of second GAP after 120ms, FB success; Other cycles can analogize, and do not list one by one at this.For the frequency finding FB synchronizing information, no longer carry out FB and search for the configuration of reception task, directly carry out SB and receive task configuration, and the measurement task configuration of follow-up ReBSIC and RSSI, accuracy, the promptness of nearby region measurement can be improved further.

Finish the work after configuration flow by step 601 to 606, rear extended meeting downloads to bottom layer driving to the data receiver arranging the fixed time to put the reception task of configuration.Specifically, after carrying out the configuration of GSM downlink reception task, also following steps are comprised:

According to the reception task of configuration, carry out the data receiver of fixed time point;

Reprocessing is carried out to the reception data of different purposes;

Wherein, carrying out in the step of reprocessing to the reception data of different purposes, data acquisition detection algorithm is being received to FB and carries out blind check; Receive data to SB and first carry out equilibrium, if signal decoding success, so can solve BSIC and the System Frame Number of community further, this frequency point cell is marked as timing effectively, follow-up when again receiving, and is arranged in fixed time point and receives; RSSI for frequency receives data, first calculates RSSI intensity, then carries out the sequence of RSSI intensity to all subdistrict frequency points, and the frequency choosing the forward predetermined number of sequence is sorted out.The RSSI of frequency receives data general shorter (as 32bit), after calculating RSSI intensity, all subdistrict frequency points carry out the sequence of RSSI intensity, front TOPN(can be chosen such as: TOPN gets 8) strong frequency carries out the flow processing shown in Figure 12, the strong frequency of TOPN, after upper workflow graph process, is sorted out below achieving:

What a) have has entered InitBSIC queue, and wait-receiving mode data carry out FB search;

What b) have enters ReBSIC queue, is arranged in fixed time point and receives SB data and carry out BSIC and heavily confirm;

C) do not enter the frequency of InitBSIC, ReBSIC list, illustrate that its BSIC is previously effectively acknowledged, at present also within effective time, do not need to be ReBSIC.

Compared with prior art, in the present embodiment, be at least 9 GSM time slots for length, and the cycle is the measurement GAP of 240 or its approximate number millisecond, in the first purposes be InitBSIC measurement GAP in configure FB search or SB searches for measurement task, and realizing in the continuous GAP number that FB ensures required for search, and initial continuous and several GAP, the data receiver task that GAP length carries out FB search or SB search is all measured in configuration; 9 GSM time slots of keeping right in follow-up GAP, allocating and measuring GAP length carry out the data receiver task of FB search or SB search.By above-mentioned GAP resource usage policy and the configuration of the task of reception, the reception of redundant data can be eliminated, reduce the process load of terminal, thus improve accuracy and the promptness of nearby region measurement.

The step of method divides above, just in order to be described clearly, can merge into a step or splitting some step, being decomposed into multiple step, when realizing as long as comprise identical logical relation, all in the protection range of this patent; To adding inessential amendment in algorithm or in flow process or introducing inessential design, but the core design not changing its algorithm and flow process is all in the protection range of this patent.

Second embodiment of the invention relates to GSM neighbor synchronization and measurement mechanism in a kind of GSM or anomalous mode formula, this device can be applied to the single-mode terminal supporting gsm system, or, be applied to and support gsm system and the automatic multimode terminal at least supporting a system in TD-SCDMA, WCDMA or LTE.Specifically comprise: GAP resource usage policy determination module, reception task configuration module; GAP resource usage policy determination module is used for according to the different purposes receiving data under the business of different mode, determines to measure time slot GAP resource usage policy, and carries out the configuration of GSM downlink reception task for receiving task configuration module;

Wherein, measuring the length of GAP be at least 9 GSM time slots, and the cycle of measurement GAP is 240 or its approximate number millisecond.

Receive task configuration module the first purposes be base station identity code BSIC initially confirm InitBSIC measurement GAP in configuration frequency correct burst sequence FB search or Synchronization Burst sequence SB searches for measurement task.

Further, receive task configuration module and realizing in the continuous GAP number K that FB ensures required for search, an initial continuous j GAP, configuration is all measured GAP length and is carried out the data receiver task that FB search or SB search for; K-j follow-up GAP, 9 GSM time slots of keeping right in allocating and measuring GAP length carry out the data receiver task of FB search or SB search; K determined jointly according to the cycle of the length and measurement GAP of measuring GAP; J determines according to the length measuring GAP.

The measurement GAP resource usage policy that GAP resource usage policy determination module is determined comprises:

Receive task configuration module to comprise further: GAP predictor module, GAP purposes decision sub-module, parameter acquiring submodule, InitBSIC queue check submodule, reception number of times comparison sub-module, synchronous search mission configuration submodule;

Specifically, GAP predictor module is used for calculating according to frame number determining whether next frame has measurement GAP to occur, and when determining whether next frame has measurement GAP to occur, triggering GAP purposes decision sub-module and judging whether the first purposes measuring GAP is set as InitBSIC, in this way, then:

When the first purposes that GAP purposes decision sub-module judges to measure GAP is set as InitBSIC, trigger parameter obtains submodule according to GAP cycle and GAP length, obtains the value of K and j, and determines GAP side-play amount GAP_offset; Wherein, GAP_offset is in a follow-up K-j GAP, the amount offset from GAP head when adopting 9 GSM time slots of keeping right to carry out the data receiver of FB search or SB search;

InitBSIC queue checks that submodule is for judging whether InitBSIC queue frequency number is greater than zero; And when determining that InitBSIC queue frequency number is greater than zero, trigger the size that FB or the SB search receiving the more current frequency of number of times comparison sub-module receives number of times and K and j;

Receive number of times comparison sub-module and judging that FB or the SB search of current frequency receives number of times and is greater than or equal to j, and GAP_offset is when being 0, or when judging that FB or the SB search reception number of times of current frequency is less than j, triggering synchronous search mission configuration submodule is pressed GAP physical length configuration FB or SB from GAP head without skew and is searched for reception task;

Receive number of times comparison sub-module and judging that FB or the SB search of current frequency receives number of times and is greater than or equal to j, and GAP_offset is not when being 0, FB or SB that triggering synchronous search mission configuration submodule configures 9 GSM time slots from GAP head skew GAP_offset searches for reception task.

Parameter acquiring submodule comprises further: K value inquiry subelement, GAP cycle judgment sub-unit, GAP length conversion subelement, j value determine subelement, GAP side-play amount determination subelement;

Wherein, K value inquiry subelement is used for according to GAP cycle and GAP length, look into emulate in advance obtain the GAP cycle, GAP length and K mapping table obtain K value; Wherein, mapping table all uses whole GAP length to receive by simulation calculation at every turn, realizes a FB and ensures that the continuous GAP number K required for search obtains;

GAP cycle judgment sub-unit is for judging that whether the GAP cycle is 240 or its approximate number 120,80,60,40,30; And when result of determination is for being, triggers GAP length conversion subelement and GAP length (8 × n+m) individual GSM time slot is represented, calculating n and m value;

GAP cycle judgment sub-unit is also for judging whether GAP length is greater than 9 GSM time slots; And when judging that GAP length is greater than 9 GSM time slots, trigger j value and determine that subelement obtains j value by 240 divided by the GAP cycle, and trigger GAP side-play amount determination subelement by (8 × (n-1)+(m-1)) individual GSM time slot as GAP side-play amount GAP_offset;

GAP cycle judgment sub-unit, when judging that GAP length is not more than 9 GSM time slots, triggers j value and determines that the value of j is set as 1 by subelement, and triggers GAP side-play amount determination subelement the value of GAP_offset is set as 0.

In addition, can be vacant by the GAP time slot that will be used for FB or SB measurement task, effectively can reduce the process load under different mode business; Or RSSI and ReBSIC that the GAP time slot not being used for FB or SB measurement task is used for GSM adjacent area is measured, then effectively can maintain accuracy, the promptness of GSM neighbor synchronization and raising nearby region measurement further.Specifically, receive task configuration module in a follow-up K-j GAP, while turning left 9 GSM time slots from GAP right margin in allocating and measuring GAP length, also task configuration received as follows to remaining GSM time slot:

Be not difficult to find, present embodiment is the system embodiment corresponding with the first execution mode, and present embodiment can be worked in coordination with the first execution mode and be implemented.The relevant technical details mentioned in first execution mode is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the relevant technical details mentioned in present embodiment also can be applicable in the first execution mode.

It is worth mentioning that, each module involved in present embodiment is logic module, and in actual applications, a logical block can be a physical location, also can be a part for a physical location, can also realize with the combination of multiple physical location.In addition, in order to outstanding innovative part of the present invention, the unit not too close with solving technical problem relation proposed by the invention is not introduced in present embodiment, but this does not show the unit that there is not other in present embodiment.

Persons of ordinary skill in the art may appreciate that the respective embodiments described above realize specific embodiments of the invention, and in actual applications, various change can be done to it in the form and details, and without departing from the spirit and scope of the present invention.

Claims

1. GSM neighbor synchronization and a method of measurement in GSM or anomalous mode formula, is characterized in that, comprise following steps:

Realizing in the continuous GAP number K that FB ensures required for search, an initial continuous j GAP, configuration is all measured GAP length and is carried out the data receiver task that FB search or SB search for; K-j follow-up GAP, configures in described measurement GAP length and carries out the data receiver task of FB search or SB search from GAP right margin 9 GSM time slots of turning left; The value of described K and described j is determined jointly according to the described measurement length of GAP and the cycle of described measurement GAP.

2. GSM neighbor synchronization and method of measurement in GSM according to claim 1 or anomalous mode formula, it is characterized in that, in K-j continuous in the rear GAP, configure while turning left 9 GSM time slots from GAP right margin in described measurement GAP length, also task configuration received as follows to remaining GSM time slot:

3. GSM neighbor synchronization and method of measurement in GSM according to claim 1 or anomalous mode formula, it is characterized in that, described measurement GAP resource usage policy comprises:

B) in WCDMA mode, indicate in cell private channel CELL_DCH lower network be InitBSIC purposes long GAP in, turn left 9 GSM time slots priority for InitBSIC from GAP right margin; Position not for InitBSIC in long GAP, by first ReBSIC, rear RSSI uses in order;

4. GSM neighbor synchronization and method of measurement in GSM according to claim 1 or anomalous mode formula, is characterized in that, in the step of carrying out the configuration of GSM downlink reception task, comprises following sub-step:

According to described GAP cycle and described GAP length, obtain the value of described K and j, and determine GAP side-play amount GAP_offset; Wherein, described GAP_offset is in described follow-up K-j GAP, adopt from GAP right margin turn left 9 GSM time slots carry out FB search or SB search data receiver time from GAP head skew amount;

Judge whether InitBSIC queue frequency number is greater than zero;

If FB or the SB search of current frequency receives number of times and is greater than or equal to j, and GAP_offset is not 0, then from GAP head skew GAP_offset, search for reception task to 9 GSM time slot configuration FB of GAP tail or SB.

5. GSM neighbor synchronization and method of measurement in GSM according to claim 4 or anomalous mode formula, it is characterized in that, the value of described K, j and GAP_offset is obtained by following steps:

According to described GAP cycle and described GAP length, look into emulate in advance obtain the GAP cycle, GAP length and K mapping table obtain K value; Wherein, described mapping table all uses whole GAP length to receive by simulation calculation at every turn, realizes a FB and ensures that the continuous GAP number required for search obtains;

And judge whether described GAP length is greater than 9 GSM time slots;

6. GSM neighbor synchronization and method of measurement in GSM according to claim 4 or anomalous mode formula, it is characterized in that, be greater than after zero at judgement InitBSIC queue frequency number, before FB or the SB search of more current frequency receives the size of number of times and K and j, also comprise following sub-step:

7. GSM neighbor synchronization and method of measurement in GSM according to claim 4 or anomalous mode formula, it is characterized in that, judging whether InitBSIC queue frequency number is greater than in the step of zero, if it is determined that InitBSIC queue frequency number is not more than zero, then each frequency of searching loop ReBSIC queue, if the timing being checked through frequency drops in GAP, the ReBSIC configuring described frequency receives task, then at the residue empty position of GAP, the RSSI that configuration not yet completes the adjacent area frequency of epicycle sampling receives task.

8. GSM neighbor synchronization and method of measurement in GSM according to claim 1 or anomalous mode formula, is characterized in that, after carrying out the configuration of GSM downlink reception task, also comprises following steps:

According to the reception task of described configuration, carry out the data receiver of fixed time point;

Reprocessing is carried out to the reception data of described different purposes;

Wherein, carrying out in the step of reprocessing to the reception data of described different purposes, data acquisition detection algorithm is being received to FB and carries out blind check; Receive data to SB and first carry out equilibrium, if signal decoding success, solve base station identity code BSIC and the System Frame Number of community so further, this frequency point cell is marked as timing effectively, follow-up when again receiving, and is arranged in fixed time point and receives; RSSI for frequency receives data, first calculates RSSI intensity, then carries out the sequence of RSSI intensity to all subdistrict frequency points, and the frequency choosing the forward predetermined number of sequence is sorted out.

9. GSM neighbor synchronization and method of measurement in GSM according to any one of claim 1 to 8 or anomalous mode formula, is characterized in that, described method is applied to the single-mode terminal supporting gsm system;

Or described method is applied to supports gsm system and the automatic multimode terminal at least supporting a system in TD-SCDMA, WCDMA or LTE.

10. GSM neighbor synchronization and a measurement mechanism in GSM or anomalous mode formula, is characterized in that, comprise: GAP resource usage policy determination module, receive task configuration module;

Described reception task configuration module is realizing in the continuous GAP number K that FB ensures required for search, an initial continuous j GAP, and configuration is all measured GAP length and carried out the data receiver task that FB search or SB search for; K-j follow-up GAP, configures and carries out the data receiver task of FB search or SB search from GAP right margin 9 GSM time slots of turning left in described measurement GAP length; The value of described K and described j is determined jointly according to the described measurement length of GAP and the cycle of described measurement GAP.

GSM neighbor synchronization and measurement mechanism in 11. GSM according to claim 10 or anomalous mode formula, it is characterized in that, in K-j the GAP that described reception task configuration module continues in the rear, configure while turning left 9 GSM time slots from GAP right margin in described measurement GAP length, also task configuration received as follows to remaining GSM time slot:

GSM neighbor synchronization and measurement mechanism in 12. GSM according to claim 10 or anomalous mode formula, it is characterized in that, the measurement GAP resource usage policy that described GAP resource usage policy determination module is determined comprises:

B) in WCDMA mode, indicate in CELL_DCH lower network be InitBSIC purposes long GAP in, turn left 9 GSM time slots priority for InitBSIC from GAP right margin; Position not for InitBSIC in long GAP, by first ReBSIC, rear RSSI uses in order;

GSM neighbor synchronization and measurement mechanism in 13. GSM according to claim 10 or anomalous mode formula, it is characterized in that, described reception task configuration module comprises: GAP predictor module, GAP purposes decision sub-module, parameter acquiring submodule, InitBSIC queue check submodule, reception number of times comparison sub-module, synchronous search mission configuration submodule;

Described GAP predictor module is used for calculating according to frame number determining whether next frame has measurement GAP to occur, and when determining whether next frame has measurement GAP to occur, trigger described GAP purposes decision sub-module and judge whether first purposes of described measurement GAP is set as InitBSIC, in this way, then:

When described GAP purposes decision sub-module judges that first purposes of described measurement GAP is set as InitBSIC, trigger described parameter acquiring submodule according to described GAP cycle and described GAP length, obtain the value of described K and j, and determine GAP side-play amount GAP_offset; Wherein, described GAP_offset is in described follow-up K-j GAP, adopt from GAP right margin turn left 9 GSM time slots carry out FB search or SB search data receiver time from GAP head skew amount;

Described InitBSIC queue checks that submodule is for judging whether InitBSIC queue frequency number is greater than zero; And when determining that described InitBSIC queue frequency number is greater than zero, FB or the SB search triggering the more current frequency of described reception number of times comparison sub-module receives the size of number of times and K and j;

Described reception number of times comparison sub-module is judging that FB or the SB search of current frequency receives number of times and is greater than or equal to j, and GAP_offset is when being 0, or when judging that FB or the SB search reception number of times of current frequency is less than j, triggering described synchronous search mission configuration submodule and searching for reception task without skew by GAP physical length configuration FB or SB from GAP head;

Described reception number of times comparison sub-module is judging that FB or the SB search of current frequency receives number of times and is greater than or equal to j, and GAP_offset is not when being 0, triggers FB or SB that described synchronous search mission configuration submodule configures 9 GSM time slots from GAP head skew GAP_offset and search for reception task.

GSM neighbor synchronization and measurement mechanism in 14. GSM according to claim 13 or anomalous mode formula, it is characterized in that, described parameter acquiring submodule comprises further: K value inquiry subelement, GAP cycle judgment sub-unit, GAP length conversion subelement, j value determine subelement, GAP side-play amount determination subelement;

Described K value inquiry subelement is used for according to described GAP cycle and described GAP length, look into emulate in advance obtain the GAP cycle, GAP length and K mapping table obtain K value; Wherein, described mapping table all uses whole GAP length to receive by simulation calculation at every turn, realizes a FB and ensures that the continuous GAP number K required for search obtains;

Described GAP cycle judgment sub-unit is for judging that whether the described GAP cycle is 240 or its approximate number 120,80,60,40,30; And when result of determination is for being, triggers described GAP length conversion subelement and described GAP length (8 × n+m) individual GSM time slot is represented, calculating described n and m value;

Described GAP cycle judgment sub-unit is also for judging whether described GAP length is greater than 9 GSM time slots; And when judging that described GAP length is greater than 9 GSM time slots, trigger described j value and determine that subelement obtains j value by 240 divided by the GAP cycle, and trigger described GAP side-play amount determination subelement by (8 × (n-1)+(m-1)) individual GSM time slot as GAP side-play amount GAP_offset;

Described GAP cycle judgment sub-unit, when judging that described GAP length is not more than 9 GSM time slots, triggers described j value and determines that the value of j is set as 1 by subelement, and triggers described GAP side-play amount determination subelement the value of GAP_offset is set as 0.