CN101494886B - Method and apparatus for implementing frequency points ordering under GSM/GPRS connection mode - Google Patents
Method and apparatus for implementing frequency points ordering under GSM/GPRS connection mode Download PDFInfo
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Abstract
The invention disclose a method for realizing intersystem frequency point ordering under GSM/GPRS connection mode, which is characterized in: detecting a frame of data on every of at least one intersystem frequency points by using the idle time slot of continuous service frame in one 26-multi-frame of GSM system, or also detecting a frame of data on one intersystem frequency points by utilizing the idle frame in one 26 multi-frame of GSM system and an adjacent idle time slot; calculating the power of a frame of data detected on every frequency point; and ordering the frequency points according to power. The invention further discloses a corresponding apparatus. Applying the invention can order the intersystem frequency points in GSM/GPRS connection mode, and can complete the process in a short time, thereby saves time for cell measurement.
Description
Technical field
The present invention relates to wireless communication technology, the method and apparatus of realization system frequency points ordering under particularly a kind of GSM/GPRS connection mode.
Background technology
Along with development of Communication Technique, support the portable terminal of multimode in the communication network of multiple access technology, to switch.
For example at global communication mobile communication system (Global System for Mobile Communication, GSM)/GPRS (General Packet Radio Service, GPRS) and TD SDMA insert (Time Division-Synchronous Code Division Multiple Access, TD-SCDMA) under the network of these two kinds of access technologies, support the dual-mode terminal of these two kinds of access technologies to insert from inserting to switch to by TD-SCDMA by GSM/GPRS.
Still switch to from inserting by GSM/GPRS that to insert by TD-SCDMA be example with portable terminal, portable terminal promptly under the GSM/GPRS access way, need be finished the cell measurement to the TD-SCDMA system before gravity treatment/switch to inserts by TD-SCDMA.The main purpose of cell measurement is to find out the position of descending synchronous code SYNC_DL in TD-SCDMA subframe (hereinafter to be referred as the TD frame), promptly obtain the frame head of TD, and and then calculate TS0 P-CCPCH channel received signal code word power (Received Signal Code Power, RSCP) value.After cell measurement was finished, portable terminal just can carry out work such as follow-up access TD system cell, allocated channel, the professional connection of foundation.
The example of TD frame structure can be as shown in Figure 1, and as figure, a TD frame comprises 7 conventional time slots, and (Time Slot is TS) with 3 special time slots.TS0～TS6 is conventional time slot, is 3 special time slots between TS0 and TS1, is respectively descending pilot frequency time slot (Downlink Pilot Time Slot; DwPTS); protection at interval (Guard Period, GP) and uplink pilot time slot (Uplink Pilot Time Slot, UpPTS).A TD frame length overall is 6400chips, and time span is 5ms.The length of DwPTS is 96chips, and it comprises SYNC_DL sign indicating number and one section GP, and the structure of DwPTS can be as described in Figure 2, and as figure, among the DwPTS, the length of GP is 32chips, and the length of SYNC_DL sign indicating number is 64chips.The length of the GP time slot after the DwPTS is 96chips.
Cell measurement can comprise frequency ordering, thick synchronously, smart synchronously, RSCP calculates four subprocess.The frequency ordering mainly is to find out the strongest several frequencies of power in the TD-SCDMA system, and this is because the SYNC_DL sign indicating number that needs to determine generally is most likely on the strong frequency of power.Because may there be deviation in the position of SYNC_DL sign indicating number in the scope of front and back 32chips, existing coarse synchronization method, mainly be the 128chips that finds out in the TD frame that the SYNC_DL sign indicating number is most likely at, smart then is synchronously further to determine the accurate position of SYNC_DL sign indicating number in the result of the thick 128chips that calculates synchronously.Received signal code power RSCP is the signal power of expectation code channel on certain descending time slot, is that the P-CCPCH according to the TS0 time slot calculates RSCP here.In the cell measurement process thick synchronously, synchronously smart and RSCP calculates and need carry out on frequency sorts the basis that this subprocess finishes.
In the prior art, the frequency ordering realizes than being easier to the TD system when portable terminal inserts under the GSM/GPRS network and is in idle condition, and insert the GSM/GPRS network and be under the connection status at portable terminal, correspondingly the method that the TD system is carried out the frequency ordering not also.Similarly, yet do not insert the GSM/GPRS network and be under the connection status, also correspondingly the method that other system is carried out the frequency ordering not at portable terminal.
Summary of the invention
The purpose of the embodiment of the invention provides the method and apparatus of realization system frequency points ordering under a kind of GSM/GPRS connection mode, to realize portable terminal access GSM/GPRS network and to be under the connection status carrying out system's frequency points ordering.
For solving the problems of the technologies described above, the embodiment of the invention provides a kind of portable terminal to insert the GSM/GPRS network and is under the connection status, also the TD system is carried out the frequency ordering be achieved in that correspondingly not
The method of realization system frequency points ordering under a kind of GSM/GPRS connection mode comprises:
Utilize in gsm system 26 multi-frames continuously between the idle time slot detection system of traffic frame one frame data of each frequency at least 1 frequency, or also utilize 1 frequency previous frame data between idle frame in gsm system 26 multi-frames and an adjacent idle time slot detection system thereof;
Calculate the power of 1 frame data that detect on each frequency;
According to power described frequency is sorted.
The described idle time slot that utilizes arbitrary section continuous traffic frame in gsm system 26 multi-frames detects that 1 frequency previous frame data comprises among the TD-SCDMA:
Utilize continuous two idle time slots of each the traffic frame fixed position in arbitrary continuous 11 traffic frames in gsm system 26 multi-frames to detect among the TD-SCDMA TD frame data on 1 frequency.
Described continuous two the idle time slots that utilize each the traffic frame fixed position in arbitrary continuous 11 traffic frames in gsm system 26 multi-frames detect among the TD-SCDMA TD frame data on 1 frequency:
In 11 continuous traffic frames, a traffic frame receives ten three/three equal parts of 1TD frame data on 1 TD-SCDMA frequency on gsm system 26 multi-frames, and other ten traffic frames receive 1/13rd equal portions of 1TD frame data respectively.
The power of 1 frame data that detect on each frequency of described calculating comprises:
Calculate the average power of frame data that detect on each frequency; Or,
Calculate the segmentation maximum average power of frame data that detect on each frequency.
The segmentation maximum average power of frame data that detect on each frequency of described calculating comprises:
Calculate the average power content of first segmentation, store this average power content;
Calculate the average power content of next segmentation successively, and when the average power content of described next segmentation during, the average power content of storage before the average power content of described next segmentation is substituted greater than the average power content of last segmentation.
The size of described each segmentation equal the 1TD frame data 1/13rd or equal 256chips.
The device of realization system frequency points ordering comprises detecting unit under a kind of GSM/GPRS connection mode, power calculation unit, and sequencing unit, wherein,
Detecting unit, be used for utilizing gsm system 26 multi-frames frame data of each frequency at least 1 frequency between the idle time slot detection system of traffic frame continuously, or also utilize 1 frequency previous frame data between idle frame in gsm system 26 multi-frames and an adjacent idle time slot detection system thereof;
Power calculation unit is used to calculate the power of 1 frame data that detect on each frequency;
Sequencing unit is used for according to power described frequency being sorted.
Described detecting unit comprises idle slot detection unit and idle frame detecting unit, wherein,
Idle slot detection unit is used for utilizing gsm system 26 multi-frames one frame data of at least 1 frequency between the idle time slot detection system of traffic frame continuously;
The idle frame detecting unit is used for utilizing 1 frequency previous frame data between the idle frame of gsm system 26 multi-frames and an adjacent idle time slot detection system thereof.
Described idle slot detection unit utilizes on gsm system 26 multi-frames traffic frame in 11 continuous traffic frames to receive ten three/three equal parts of 1TD frame data on 1 TD-SCDMA frequency, and other ten traffic frames receive 1/13rd equal portions of 1TD frame data respectively.
Described power calculation unit is that average power is calculated unit or segmentation maximum average power computing unit, wherein,
Described average power calculates that the unit calculates is the average power of the frame data that detect on each frequency;
Described segmentation maximum average power computing unit calculates is the segmentation maximum average power of the frame data that detect on each frequency.
Described segmentation maximum average power computing unit comprises memory cell and segmental averaging power calculation unit, wherein,
The segmental averaging power calculation unit is used for once calculating the authority performance number of each segmentation;
Memory cell is used to store the average power content of first segmentation; Also be used for when the average power performance number of next segmentation during the average power content of storage before the average power content of described next segmentation is substituted greater than the average power content of last segmentation.
The technical scheme that is provided by the above embodiment of the invention as seen, utilize the idle time slot of 2 sections continuous traffic frames in gsm system 26 multi-frames, or in conjunction with the data of each frame length of each frequency at least 2 frequencies between idle frame and an adjacent idle time slot detection system thereof, after calculating the power of 1 frame data that detect on each frequency, can realize system's frequency points ordering under the GSM/GPRS connection mode.
Description of drawings
Fig. 1 is the structure chart of prior art TD frame;
Fig. 2 is the structure chart of DwPTS in the prior art;
Fig. 3 is the basic frame assumption diagram of GSM in the prior art;
Fig. 4 is the multi-frame structure figure of 104 frames under the GSM connection mode in the prior art;
Fig. 5 is the basic frame assumption diagram of GPRS in the prior art;
Fig. 6 is the flow chart of the inventive method first embodiment;
Fig. 7 is the schematic diagram that the continuous idle time slot in each gsm service frame receives the different equal portions of 1TD frame data in the embodiment of the invention;
Fig. 8 collects the schematic diagram of different equal portions of the data of 1TD frame for continuous 11 the gsm service frames of the embodiment of the invention;
Fig. 9 is in the embodiment of the invention with 256chip being the schematic diagram of handling the 1TD frame data under the situation of unit;
Figure 10 is for Xchip being the schematic diagram of handling the 1TD frame data under the situation of unit;
Figure 11 is the flow chart of the inventive method second embodiment;
Figure 12 is the flow chart of the inventive method the 3rd embodiment;
Figure 13 is the structure chart of apparatus of the present invention embodiment.
Embodiment
Portable terminal is under the GSM/GPRS connection mode, the agreement regulation is supported maximum 64 other access technologies (inter Radio Technology, inter-RAT) system's measurements of sub-district, these sub-districts at most can be on 3 frequencies, and the sub-district on each frequency can not surpass 32 sub-districts at most.For example maximum 64 sub-districts on 3 TDD frequencies, are no more than 32 co-frequency cells at most at most on each TDD frequency.
At first introduce the basic frame structure of GSM, as shown in Figure 3, a GSM frame comprises 8 time slots, is labeled as TS0 in the drawings respectively to TS7.Each frame can be used for different logic channels, as TCH, FACCH, SACCH.Portable terminal is under the GSM/GPRS connection mode, and general employing is the multi-frame structure of totally 104 frames, and wherein 26 frames are a multi-frame, promptly comprise 4 multi-frames in 104 frames altogether.Under the GSM connection mode, the multi-frame structure of 104 frames can be as shown in Figure 4, and each row is the multi-frame structure that comprises 26 frames, and T represents TCH or FACCH, and A represents SACCH, and the I frame is represented idle (IDLE) frame.Preceding 12 frames of each 26 multi-frame structure are T frames, and the 13rd frame is the A frame, and the 14th to the 25th frame is the T frame, and last frame is the I frame.As 0 to 11 the frame of being numbered in the 26th multi-frame is the T frame, and being numbered 12 frame is the A frame, and being numbered 13 to 24 frame is the T frame, and being numbered 25 frame is the I frame.Other multi-frame in 104 frame structures similarly, as shown in the figure.
Basic frame structure and the GSM of GPRS are similar, also are the multi-frame structures that adopts 104 frames, and the last frame of each 26 multi-frame structure is I frames, and different is that the logic channel that is carried is different.For example, as shown in Figure 5, comprise in preceding 12 frames that (each block comprises 4 frames for the block of 3 B channels, be that preceding 12 frames are B frames), the 13rd frame is PTCCH, and the 14th to the 25th frame comprises the block (each block comprises 4 frames, and promptly the 14th frame to the 25 frames are B frames) of 3 B channels.B represents PDCH or PACCH channel.
Portable terminal need be finished many work of self pattern under the GSM/GPRS connection mode, the frame of TCH promptly above-mentioned or FACCH, SACCH, channel occupancies such as PDCH, PTCCH need be finished corresponding work; Therefore these frames at first will be finished professional the reception, can be called traffic frame.In the prior art, except the time slot of bearer service, can also comprise idle time slot on the traffic frame, can comprise 1 in the traffic frame, 2,3 even adjacent idle time slot such as more, according to agreement 45002 is analyzed 1 idle time slot of minimum existence and 2 continuous idle time slots.When comprising 3 idle time slots, the time slot of these 3 free time also can be all adjacent certainly.Also can analogy exemplify out in other situation.Repeatedly utilize the method for the idle time slot detection 1TD frame data in the different business frame, this mode abbreviates as and adopts idle time slot to measure.
By prior figures 4 as can be known, the last frame in each 26 multi-frame is an idle frame, and the duration of this frame is 4.615ms, is that the TD frame of 5ms is not enough for detecting a frame duration.But, according to analysis to agreement 45002, for idle frame, next-door neighbour's time slot of the frame that is close to described idle frame in the traffic frame before or after it must be idle, can constitute the idle window that constitutes by 9～10 idle time slots, under such situation, the duration of this idle time slot is 4.615ms/8=0.576875ms, add the 4.615ms of idle frame, length overall is 5.191875ms, greater than the 5ms of TD frame, can once pack up 6400chip and finish 1 TD frequency ordering, therefore, thisly add an adjacent idle time slot before or after this idle frame with an idle frame among the GSM/GPRS, receive for 1 time, realize measurement, abbreviate as and adopt idle frame to measure a frame TD frame.
For system's measurements, below respectively utilizing of proposing respectively of the embodiment of the invention method that idle frame and idle time slot realize, utilize the idle time slot in the traffic frame to realize, and utilize idle frame to realize.
At first introduce method first embodiment to adopt idle time slot and idle time slot to realize, and suppose that the idle time slot that adopts is 2 a situation, for example 2 of this employing idle time slots are 2 adjacent idle time slots in 3 idle time slots that comprise in the traffic frame, or adjacent 2 idle time slots in the traffic frame.
Fig. 6 shows the flow chart of this method embodiment, as figure, comprising:
Step 601: utilize the idle time slot of 2 sections continuous traffic frames in 1 26 multi-frame of gsm system and 1 idle frame to detect among the TD-SCDMA data of each 1 TD frame of each frequency on 3 frequencies.
Shown in Figure 4 as the front, the frame of the numbering from 0 to 11 in 1 26 multi-frame structure of gsm system is one section continuous traffic frame, and being numbered 13 to 24 frame is another section continuous traffic frame, and being numbered 25 frame is idle frame.
The front illustrates, utilizes idle frame and next-door neighbour's thereof idle time slot can detect 1 TD frame.
The following describes and utilize two sections continuous traffic frames to detect 1 TD frame respectively.
As preceding hypothesis, comprise 2 continuous idle time slots in each gsm service frame, then can obtain through calculating, if 1 TD frame on average is divided into 13 equal portions, then 2 of 1 GSM frame continuous idle time slots just in time can receive 3 equal portions in 13 equal portions that neat 1 TD frame is divided into.Concrete, 3 equal portions durations that 1 TD frame is divided in 13 equal portions are 5ms*3/13, its value is about 1.154ms, the duration of 2 time slots is 4.615*2/8 in each GSM frame, its value is about 1.154ms, as seen, the duration of 3 equal portions in 13 equal portions that are divided into of 2 of 1 GSM frame idle time slots and 1 TD frame about equally.
Simultaneously, the difference of 1 GSM frame duration and 1 TD frame duration is approximately equal to the duration that above-mentioned 1 TD frame is divided into 1 equal portions in 13 equal portions.If said equal portions are Δ, and 13 equal portions serial numbers are 1 to 13, then changing an angle sees, as shown in Figure 7,2 continuous idle time slots since the 1st frame GSM frame receive the TD frame data of 1 5ms duration, if what receive is Δ 1 in the TD frame data, 2,3, then 2 continuous idle time slots of the same position in the 2nd frame GSM frame can receive the Δ 13 in the TD frame data, 1,2,2 continuous idle time slots of the same position in the 3rd frame GSM frame can receive the Δ 12 in the TD frame data, 13,1, by that analogy, 2 continuous idle time slots of the same position in the 11st frame GSM frame can receive the Δ 4 in the TD frame data, 5,6.
And because in the Δ 1,2,3 of the TD frame data that collect in the described 1GSM frame, Δ 1,2 in the Δ 13,1,2 in the TD frame data that can collect in the 2nd frame GSM frame has been arranged, therefore, the 2nd frame GSM frame is equivalent to only overcharge Δ 13, by that analogy, the 3rd frame GSM frame is equivalent to only overcharge Δ 12 ..., the 11st frame GSM frame is equivalent to only overcharge Δ 4.That is to say that for 26 multi-frames of GSM, in the traffic frame of first section continuous 12 frame, need 11 frames just can receive the data of a full TD frame, Fig. 8 shows this principle.
Obvious, the first gsm service frame to the, ten gsm service frames, the continuous idle time slot in each traffic frame only receives 1 Δ, also is feasible and receive 3 Δs on the 11 gsm service frame.Same, arbitrary traffic frame receives 3 Δs on the second gsm service frame to the, ten gsm service frames, and 1 Δ of other traffic frame reception equally also is feasible.
Like this, for 1 section in gsm system 26 multi-frames 12 continuous traffic frames, utilize idle time slot can detect the data of 1 TD frame on the frequency.In like manner, for 12 continuous traffic frames of another section, utilize idle time slot can detect the data of 1 TD frame on another frequency.
Above to adopt two continuous in the traffic frame idle time slots to realize describing, and it should be noted that, as previously mentioned, also may comprise three idle time slots in the traffic frame, and these three idle time slots may be that wherein two idle time slots are adjacent, and another idle time slot is not adjacent with other arbitrary idle time slot, like this, under the situation of only utilizing two adjacent idle time slots, be consistent with the process of discussing above.Certainly, can also utilize described not adjacent idle time slot, like this, can once in same traffic frame, collect more data, thereby can utilize continuous traffic frame still less to realize that frequency detects with other any idle time slot.
Certainly; for the situation that comprises three adjacent idle time slots in the traffic frame; under this situation; because the more time resource is arranged; therefore easier realization frequency detects and ordering; those skilled in the art pass through description above, can easierly expect its specific implementation, so this situation should belong to the protection range of this method embodiment.
Step 602: the power that calculates the 1TD frame data that detect on each frequency.
This step can comprise two kinds of specific implementations.
First kind: the average power of calculating the 1TD frame data that detect on each frequency.
In this mode, calculating be the average power of the 1TD frame data of each frequency of receiving, can be with the power sum of the 1TD frame data that receive chip number divided by the 1TD frame, promptly obtain divided by 6400chip.The TD frame data that can the processing and utilizing gsm service frame idle time slot of this mode detects, the TD frame data that the idle frame in also can processing and utilizing gsm system 26 multi-frames detects.
Second kind: the segmentation maximum average power of calculating the 1TD frame data that detect on each frequency.
Each segmentation can be a Δ of front, the power sum of each Δ can obtain the average power of this segmentation divided by the chip number that comprises in this Δ, wherein the chip number that comprises of each Δ can be 492, and this value can be calculated approximate obtaining divided by 13 with 6400.13 segmentation Δs obtain 13 average powers, get the maximum average power in these 13 average power contents.
In addition, after the average power that calculates first segmentation, store this average power content, when the result of calculation of next segmentation during greater than this segmentation, substitute the average power of storage before with the big average power content that newly calculates, otherwise if be not more than the average power that newly calculates, the average power content of storage is constant before then keeping.So calculate the average power of each segmentation one by one, finally can obtain segmentation maximum average power value, and this process only needs one memory space, relatively draw the segmentation maximum average power again with respect to after the average power of calculating each segmentation in 13 segmentations respectively, can save memory space greatly.
In the actual hardware designs of calculating the average power correspondence, the data of integral multiple that can single treatment 2 based on this, can be 256chips with each segment design for example.Like this, on the 1st continuous 2 the idle time slots of GSM frame, receive in the data of 3 Δ length, i.e. the Δ 1,2,3 of front, in fact receiving what handle is an integer 256chip.The front is mentioned Δ and is about 492, and therefore, this integer can round downwards by 3*492/256 and obtain, and is 5.And among this 3*492, also have the data of 3*492-5*256=196chip not receive, and the data of this 196chip are positioned at the front portion of Δ 1.
In the 2GSM frame, in the Δ 13,1,2 of reception, the 196chip that can begin from the front portion of Δ 1 gets a maximum integer 256chip forward, thereby has comprised those 196chip data that do not receive in the 1GSM frame.
The processing of 2 top frame GSM frame data can be as shown in Figure 9, and data are afterwards handled according to this.
Generally, can as shown in Figure 10 following relation be arranged:
Being located at the data length overall that needs on i the GSM frame to receive is L
i, unit is chip; If X is the length of data block of each processing of hardware designs, unit also is chip; If N
iBe this L
iThe maximum number of the Xchip that comprises in the data of chip.
Then have, for the 1GSM frame,
L
1＝492*3
N
1=floor (492*3/X), floor () are downward bracket function
Remainder M then
1=492*3-N
1* 256
For the k frame in the 2nd to 11 the GSM frame (be k=2 ..., 11),
L
k＝492*3+M
k-1
N
k＝floor(L
k/X)
Remainder M then
k=492*L
k/ X-N
k* X
Like this, hardware can be handled the data of Xchip at every turn, knows that the data of 1 the TD frame that will detect dispose fully.
After calculating the average power of the fair data of first section X, store this average power content, when the result of calculation of next section Xchip data average power greater than the last period the X data average power the time, substitute the average power of storage before with the big average power content that newly calculates, otherwise, if be not more than the average power that newly calculates, the average power content of storage is constant before then keeping.So calculate the average power of each section Xchip data one by one, finally can obtain segmentation maximum average power value, and this process only needs one section memory space, also can realize saving memory space, and be beneficial to and make full use of hardware.
The mode of the segmentation maximum average power of aforementioned calculation 1TD frame data can be used for the TD frame data that the idle time slot of processing and utilizing gsm service frame detects, the TD frame data that the idle frame in can certainly processing and utilizing gsm system 26 multi-frames detects.During TD frame data that idle frame in processing and utilizing gsm system 26 multi-frames detects, only needing that the data that idle frame detects the 1TD frame that obtain are divided into segmentation can carry out according to this mode.
Like this, utilize two sections continuous traffic frames in gsm system 26 multi-frames, can detect the power of the data of 1 TD frame respectively, this power can be the average power of the whole 1TD frame data of detection, also can be the segmentation maximum average power of the 1TD frame data of detection.And utilize idle frame in gsm system 26 multi-frames, and can detect the power of 1 TD frame data, this power can be the average power of the whole 1TD frame data that detect, also can be the segmentation maximum average power of the 1TD frame data that detect.The data of 3 top TD frames can lay respectively on 3 different frequencies, like this, just can calculate the power of 3 TD frame data of difference on 3 frequencies.
Step 603: described three frequencies are sorted according to power.
Corresponding with top step 602, can be that average power according to the 1TD frame data that receive respectively on 3 frequencies sorts to 3 frequencies, also can be that the segmentation maximum average power according to the 1TD frame data that receive respectively on 3 frequencies sorts to 3 frequencies.
Prior protocols requires to finish in 3s under the GSM/GPRS connection mode the measurement of frequency between system, is given in below to adopt under the above-mentioned frequency sort method frequency to measure the time that needs.
1. frequency ordering:
(Auto Gain Control AGC) under the situation of She Zhiing, needs 1 26 multi-frame to finish to carry out 1 grade of automatic gain control.
2. synchronously thick:
Carry out 3 grades of AGC and be provided with, 1 grade is repeated to need 3*5 26 multi-frames to finish at most under 5 times the situation.
3. smart synchronous and RSCP:
For essence synchronously and RSCP to leave the time be in 9 26 multi-frames.According to analyzing as can be known, 1 26 multi-frame can receive SYNC_DL or RSCP 6 times.
And current strategies, smart each frequency is synchronously done 2 times, and maximum 3 frequencies receive 6 SYNC_DL and can finish, and approximately need 1 26 multi-frame.And RSCP1 time receive the data of 1 frequency, just all co-frequency cell RSCP can be calculated 1 time, and protocol requirement RSCP calculates 3 times at most, and maximum 3 frequencies approximately need 9 times, can finish in less than 2 26 multi-frames.And actual 8 26 reframing times being arranged, adequate time has guaranteed to calculate the uniformity of RSCP sampling.
Then, a GSM26 multi-frame duration 4.615*26 is about 120ms, and then said process needs 25*120ms=3000ms=3s at most altogether, can satisfy the requirement of agreement.And, in the frequency sequencer procedure, only taken 1 26 multi-frame duration, in the short like this time, finish, for whole system measurements process has won the time.
Need to prove, in fact also might have situation in the system, for example have the situation that issues 9 frequencies more than 3 frequencies.Under this situation, still adopt said method, but adopt 3 GSM26 multi-frames, still can realize these frequencies are sorted.And, based on above-mentioned analysis, the synchronous and RSCP calculating for essence, time ratio is more abundant, therefore, even the situation of 9 frequencies according to the method described above, also can guarantee to finish whole system measurements process in 3s.Same, following method embodiment also is suitable for being applied to the more situation of multifrequency point.
Below introduce the present invention second method embodiment.
First embodiment sorts to 3 frequencies, is the most complete carrying out the frequency ordering and finish the mode that detects between system.This second embodiment at be the situation of 2 frequencies, can specifically comprise as shown in figure 11:
Step 111: utilize the idle time slot of 1 section continuous traffic frame in 1 26 multi-frame of gsm system and 1 idle frame to detect among the TD-SCDMA data of each 1 TD frame on 2 frequencies respectively.
In this step,, can be arbitrary section in two sections continuous traffic frames that utilize in gsm system 26 multi-frames for the data of utilizing 1 the TD frame of 1 section continuous traffic frame detection in 1 26 multi-frame of gsm system.Concrete mode can not repeat them here as preceding step 601.And utilize 1 TD frame data of idle time slot detection of idle frame and next-door neighbour thereof also to illustrate in front.
Step 112: the power that calculates the 1TD frame data that detect on each frequency.
This step still can realize described in preceding step 602.
Step 113: described two frequencies are sorted according to power.
Below introduce third party's method embodiment of the present invention.
The 3rd embodiment at be the situation of 2 frequencies, can specifically comprise as shown in figure 12:
Step 121: utilize the idle time slot of 2 sections continuous traffic frames in 1 26 multi-frame of gsm system to detect among the TD-SCDMA data of each 1 TD frame on 2 frequencies respectively.
In this step,, can be arbitrary section in two sections continuous traffic frames that utilize in gsm system 26 multi-frames for the data of utilizing 1 the TD frame of 1 section continuous traffic frame detection in 1 26 multi-frame of gsm system.Concrete mode can not repeat them here as preceding step 601.
Step 122: the power that calculates the 1TD frame data that detect on each frequency.
This step still can realize described in preceding step 602.
Step 123: described two frequencies are sorted according to power.
The technical scheme that is provided by the above embodiment of the invention as seen, utilize the idle time slot of 2 sections continuous traffic frames in 1 26 multi-frame of gsm system, or in conjunction with the data of each frame of each frequency at least 2 frequencies between idle frame and an adjacent idle time slot detection system thereof, after calculating the power of 1 frame data that detect on each frequency, can realize system's frequency points ordering under the GSM/GPRS connection mode.
Obvious, under the GSM/GPRS idle pulley, because the more free time slot is arranged, and, also have the more free frame according to configuration, therefore, said method embodiment also can be used for frequency measurement between system under the GSM/GPRS idle pulley.
Below introduce apparatus of the present invention embodiment, Figure 13 shows the block diagram of this embodiment, as scheming:
The device of realization system frequency points ordering is characterized in that under a kind of GSM/GPRS connection mode, comprises detecting unit 131, power calculation unit 132, and sequencing unit 133, wherein,
Detecting unit 131, utilize in 1 26 multi-frame of gsm system continuously between the idle time slot detection system of traffic frame one frame data of each frequency at least 1 frequency, or also utilize 1 frequency previous frame data between idle frame in 1 26 multi-frame of gsm system and an adjacent idle time slot detection system thereof;
Described detecting unit 131 comprises idle slot detection unit 1311, or also comprises idle frame detecting unit 1312, wherein,
Idle slot detection unit 1311 is used for utilizing 1 26 multi-frame of gsm system data of one frame of at least 1 frequency between the idle time slot detection system of traffic frame continuously;
Idle frame detecting unit 1312 is used for utilizing the data of 1 frequency previous frame between the idle frame of 1 26 multi-frame of gsm system and an adjacent idle time slot detection system thereof.
Described idle slot detection unit 1312 utilizes on 1 26 multi-frame of gsm system a traffic frame in 11 continuous traffic frames to receive ten three/three equal parts of 1TD frame data on 1 TD-SCDMA frequency, and other ten traffic frames receive 1/13rd equal portions of 1TD frame data respectively.
Described power calculation unit 132 is calculated unit 1321 or segmentation maximum average power computing unit 1322 for average power, wherein,
Described average power calculates that unit 1321 calculates is the average power of the frame data that detect on each frequency;
Described segmentation maximum average power computing unit 1322 calculates is the segmentation maximum average power of the frame data that detect on each frequency.
Described segmentation maximum average power computing unit 1322 comprises memory cell 13221 and segmental averaging power calculation unit 13222, wherein,
Segmental averaging power calculation unit 13222 is used for once calculating the authority performance number of each segmentation;
Memory cell 13221 is used to store the average power content of first segmentation; Also be used for when the average power performance number of next segmentation during the average power content of storage before the average power content of described next segmentation is substituted greater than the average power content of last segmentation.
Utilize apparatus of the present invention embodiment to realize that the method and the preceding method of GSM/GPRS connection mode system frequency points ordering are similar, do not repeat them here.
Though described the embodiment of the invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wish that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.
Claims (11)
1. the method for realization system frequency points ordering under the GSM/GPRS connection mode is characterized in that, comprising:
Utilize in gsm system 26 multi-frames continuously the idle time slot of traffic frame to detect among the TD-SCDMA frame data of each frequency at least 1 frequency, or also utilize a idle frame in gsm system 26 multi-frames and an adjacent idle time slot thereof to detect 1 frequency previous frame data between the TD-SCDMA system;
Calculate the power of 1 frame data that detect on each frequency;
According to power described frequency is sorted.
2. the method for claim 1 is characterized in that, the frame data that the described idle time slot that utilizes in gsm system 26 multi-frames continuously traffic frame detects among the TD-SCDMA each frequency at least 1 frequency comprise:
Utilize continuous two idle time slots of each the traffic frame fixed position in arbitrary continuous 11 traffic frames in gsm system 26 multi-frames to detect among the TD-SCDMA TD frame data on 1 frequency.
3. method as claimed in claim 2 is characterized in that, described continuous two the idle time slots that utilize each the traffic frame fixed position in arbitrary continuous 11 traffic frames in gsm system 26 multi-frames detect among the TD-SCDMA that TD frame data comprise on 1 frequency:
In 11 continuous traffic frames, a traffic frame receives ten three/three equal parts of 1TD frame data on 1 TD-SCDMA frequency on gsm system 26 multi-frames, and other ten traffic frames receive 1/13rd equal portions of 1TD frame data respectively.
4. the method for claim 1 is characterized in that, the power of 1 frame data that detect on each frequency of described calculating comprises:
Calculate the average power of frame data that detect on each frequency; Or,
Calculate the segmentation maximum average power of frame data that detect on each frequency.
5. method as claimed in claim 4 is characterized in that, the segmentation maximum average power of frame data that detect on each frequency of described calculating comprises:
Calculate the average power content of first segmentation, store this average power content;
Calculate the average power content of next segmentation successively, and when the average power content of described next segmentation during, the average power content of storage before the average power content of described next segmentation is substituted greater than the average power content of last segmentation.
6. method as claimed in claim 5 is characterized in that, the size of described each segmentation equal the 1TD frame data 1/13rd or equal 256chips.
7. the device of realization system frequency points ordering under the GSM/GPRS connection mode is characterized in that, comprises detecting unit, power calculation unit, and sequencing unit, wherein,
Detecting unit, be used for utilizing gsm system 26 multi-frames continuously the idle time slot of traffic frame detect in the TD-SCDMA system frame data of each frequency at least 1 frequency, or also utilize a idle frame in gsm system 26 multi-frames and an adjacent idle time slot thereof to detect 1 frequency previous frame data between the TD-SCDMA system;
Power calculation unit is used to calculate the power of 1 frame data that detect on each frequency;
Sequencing unit is used for according to power described frequency being sorted.
8. device as claimed in claim 7 is characterized in that described detecting unit comprises idle slot detection unit, or also comprises the idle frame detecting unit, wherein,
Idle slot detection unit, be used for utilizing gsm system 26 multi-frames continuously the idle time slot of traffic frame detect frame data of at least 1 frequency in the TD-SCDMA system;
The idle frame detecting unit is used for utilizing the idle frame of gsm system 26 multi-frames and an adjacent idle time slot thereof to detect 1 frequency previous frame data in the TD-SCDMA system.
9. device as claimed in claim 8 is characterized in that,
Described idle slot detection unit utilizes on gsm system 26 multi-frames traffic frame in 11 continuous traffic frames to receive ten three/three equal parts of 1TD frame data on 1 TD-SCDMA frequency, and other ten traffic frames receive 1/13rd equal portions of 1TD frame data respectively.
10. device as claimed in claim 7 is characterized in that, described power calculation unit is that average power is calculated unit or segmentation maximum average power computing unit, wherein,
Described average power calculates that the unit calculates is the average power of the frame data that detect on each frequency;
Described segmentation maximum average power computing unit calculates is the segmentation maximum average power of the frame data that detect on each frequency.
11. device as claimed in claim 10 is characterized in that, described segmentation maximum average power computing unit comprises memory cell and segmental averaging power calculation unit, wherein,
The segmental averaging power calculation unit is used for calculating successively the average power content of each segmentation;
Memory cell is used to store the average power content of first segmentation; Also be used for when the average power performance number of next segmentation during the average power content of storage before the average power content of described next segmentation is substituted greater than the average power content of last segmentation.
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| CN102740409B (en) * | 2011-04-13 | 2015-01-07 | 联芯科技有限公司 | Method and apparatus for sequencing frequency points |
| CN102790993B (en) * | 2011-05-19 | 2015-05-20 | 联芯科技有限公司 | Method and device for measuring frequency point power during cell-search stage |
| EP3270631B1 (en) * | 2015-04-03 | 2019-06-19 | Huawei Technologies Co., Ltd. | Data transmission method, device and system of time division duplex wireless data transmission system |
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| CN1642337A (en) * | 2004-01-12 | 2005-07-20 | 大唐移动通信设备有限公司 | Quick frequency scanning method for howing estate primary searching |
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