CN1430359A - Method of realizing calling time selection under idle mode by mobile telephone user's terminal - Google Patents
Method of realizing calling time selection under idle mode by mobile telephone user's terminal Download PDFInfo
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Abstract
A calling time selection method under idle mode of the User's mobile terminal should obey a formula of Po=(IMSI div K) mod (DRX cycle length)+n*(DRX cyclo length) to reduce calcualtion and to simplify operation steps as starting from parametric inputting and to be followed with IMSI, not to continue receiving cycle length, having beared on number K of auxiliary public control physical channel of calling channel and maximum value of MAXSFN of frame number in subarea system, two cycle operation as digit as 2,3,..., m and n=0,1,2...via IMSI, recording PO value less than MAXSFN untill PO value bigger than or equal to MAXSFN to stop. The method can also be used in the time-division multiplexing mode.
Description
Technical field
The present invention relates to third generation Wideband Code Division Multiple Access (WCDMA) (WCDMA) mobile communication system technical field, when relating to mobile subscriber terminal (UE:User Equipment) or rather and under idle pulley, realizing discontinuous reception, select the implementation method of calling time (PO:Paging Occassion).
Background technology
In order to realize the discontinuous reception (DRX) of user terminal (UE) under idle pulley, 3-G (Generation Three mobile communication system) WCDMA 25304 v3.7.0 version agreements regulation: mobile subscriber terminal (UE) in the cycle, only needs to monitor a paging indicator (PI:Page Indicator) of a calling time (PO:PagingOcassion) in each discontinuous reception (DRX).
Specifically, under idle pulley, user terminal can use discontinuous reception (DRX) mode to reduce power consumption, when using discontinuous reception (DRX) mode, at the calling time of each discontinuous receiving cycle, mobile subscriber terminal only need be monitored a paging indicator (PI).
Discontinuous receiving cycle length (DRX cycle length) should be MAX (2
k, PBP) frame is promptly 2
K, PBP gets maximum among the two, wherein k is that { 3,4,5,6,7,8, the some integers among the 9}, PBP are paging block periodicity (Paging Block Periodicity).Paging block periodicity (PBP) is only used under time division multiplexing (TDD) pattern, and equals Page Indication Channel (PICH) repetition period in the system information broadcast.And under frequency division multiplexing (FDD) pattern, paging block periodicity PBP=1.
User terminal (UE) can be attached to the different core network (CN) with specific discontinuous receiving cycle length (DRX cyclelength), user terminal (UE) will be preserved the specific discontinuous receiving cycle length (DRX cycle length) of each core net (CN) under it, and use one the shortest in these discontinuous receiving cycle length (DRX cycle length).Specific discontinuous reception (DRX) the Cycle Length coefficient of core network-circuit switched domain (CS CN) should upgrade in the user profile in the given user terminal of system information (UE).On the other hand, after user terminal (UE) and core network-packet switched domain (PS CN) are consulted, upgrade core network packet exchange (PS CN) specific discontinuous reception (DRX) Cycle Length coefficient by Non-Access Stratum (NAS) process.If do not specify negotiation value " k " in Non-Access Stratum (NAS) process, user terminal (UE) and core network-packet switched domain (PS CN) will use discontinuous reception (DRX) Cycle Length by the given core network-packet switched domain of system information (PS CN).
Discontinuous reception (DRX) Cycle Length that is used for Universal Terrestrial Radio Access Network (UTRAN) connection mode is minimum in the following value:
1. the discontinuous receiving cycle length of Universal Terrestrial Radio Access Network (UTRAN DRX cycle length);
2. the discontinuous receiving cycle length (DRX cycle length) that any core net of having preserved is specific, these core net are also not set up the core net (CN) that signaling connects in the core net that connected of user terminal (UE).
For frequency division multiplexing (FDD) pattern, user terminal must monitor the paging indicator (Paging Indicator) by Page Indication Channel (PICH) frame number of the given Cell System Frame Number of calling time (SFN) lining.
For time division multiplexing (TDD) pattern, user terminal (UE) must monitor by the paging indication in the given paging block of calling time.Calling time has provided the Cell System Frame Number (SFN) of first frame in the paging block.
The value of calling time (PO) is determined by following formula:
PO＝{(IMSI?div?K)mod(DRX?cycle?length?div?PBP)}*PBP
+n*DRX?cycle?length+Frame?Offset.
In the formula, IMSI represents global mobile subscriber's identifier, div is the division symbol, and K has equaled to carry (SCCPCH) number of the Secondary Common Control Physical Channel of paging channel (PCH), and a mod b represents the remainder of integer a divided by integer b, DRX cycle length represents discontinuous receiving cycle length, n=0,1,2,, Frame Offset represents vertical shift.
For the frequency division multiplexing pattern, vertical shift Frame Offset=0; For time division multiplexing, the frame offset value of Page Indication Channel is given in system message; PBP represents paging block periodicity, and paging block periodicity only is applied to time division multiplexing (TDD) pattern, and equals the repetition period of the Page Indication Channel (PICH) in the system information broadcast, and for frequency division multiplexing (FDD) pattern, paging block periodicity (PBP) equals 1.The calling time that requirement calculates (PO) value is less than the maximum of Cell System Frame Number (SFN).
For frequency division multiplexing (FDD) pattern,, can be with above simplified formula because of vertical shift Frame Offset=0 and PBP=1:
PO＝(IMSI?div?K)mod(DRX?cycle?length)+n*(DRX?cycle?length)。
If user terminal (UE) does not have global mobile subscriber's identifier (IMSI), then user terminal (UE) uses default value: IMSI=0, DRX cycle length=256, and promptly discontinuous receiving cycle length is 2.56 seconds.
Because global mobile subscriber's identifier (IMSI) generally is 15 a decimal integer, and signless 32 long maximums can only be represented 10 decimal number, promptly 4294967296, therefore in WCDMA25304 v3.7.0 version agreement, stipulate, selection formula for calling time in the frequency division multiplexing pattern (FDD), shown in above-mentioned formula of reduction, the global mobile subscriber's identifier (IMSI) in the formula just can not directly be stored with a signless long variable sometimes.
Traditional realization technology is to adopt two signless long variable ulLow and ulHigh to store, suppose global mobile subscriber's identifier (IMSI) be one smaller or equal to 16 decimal number, then preserve the least-significant byte of metric global mobile subscriber's identifier (IMSI) with long variable ulLow, preserve the remaining seniority top digit-most-significant byte of metric global mobile subscriber's identifier (IMSI) with long variable ulHigh, select the specific implementation of calling time PO to be: Paging Occasion=((((ulHigh-ulHigh mod K) div K) * 10
8) mod (DRX cycle length)+(((ulHigh mod K) * 10
8+ ulLow) div K) mod (DRX cycle length)+n * (DRX cycle length) mod (DRX cycle length)).
Obvious above-mentioned implementation is complexity but also underaction and general not only, for example when global mobile subscriber's identifier (IMSI) is one 24 decimal number, then to piece together and to satisfy memory requirement with three signless long variablees, also need to redesign implementation algorithm, and along with the figure place of global mobile subscriber's identifier (IMSI) increases, it is also more and more to be used to preserve the required long variable of this IMSI, and implementation algorithm also can be complicated more.
Summary of the invention
The objective of the invention is to design a kind of mobile subscriber terminal is selected calling time under idle pulley implementation method, it is a kind of method that realizes selecting under the idle pulley calling time (PO) formula, this method is common to the situation of global mobile subscriber's identifier (IMSI) of any digit, and implementation procedure is simple.
The technical scheme that realizes the object of the invention is such: a kind of mobile subscriber terminal is selected the implementation method of calling time under idle pulley, be applied to it is characterized in that comprising following treatment step in the frequency division multiplexing WCDMA mobile communication system:
A. import parameter, comprise global mobile subscriber's identifier (IMSI), the discontinuous receiving cycle length of m position, the number K of having carried the Secondary Common Control Physical Channel (SCCPCH) of paging channel (PCH), and the maximum (MAXSFN) of Cell System Frame Number (SFN);
B., a local variable sum is set, and the initial value tax of local variable sum is the 1st bit value of global mobile subscriber's identifier (IMSI);
C. allow new local variable sum equal: former local variable sum (integer) is divided by the remainder of K discontinuous receiving cycle length (integer) doubly;
D. the initial value of the 1st cyclic variable i being composed is 2;
E. judge whether the value of the 1st cyclic variable i is less than or equal to the figure place m of global mobile subscriber's identifier (IMSI), if execution in step F then, if not execution in step G then;
F. allow new local variable sum equal: in 10 times former local variable sum and the global mobile subscriber's identifier numerical value of i position and (integer) again divided by the remainder of K discontinuous receiving cycle length (integer) doubly, and allow the 1st cyclic variable i add 1 automatically, and return step e and continue to carry out;
G. allow new local variable sum equal: the integer part of former local variable sum (integer) after divided by K (integer);
H., the 2nd cyclic variable n is set, and the initial value of n is composed is 0, represents the number of the calling time (PO) that chosen with p, and to put p be 0;
I. allow calling time (PO) equal the present worth of local variable sum and n discontinuous receiving cycle length doubly and;
J. judge that calling time (PO) is whether less than the maximum (MAXSFN) of Cell System Frame Number, if calling time (PO) is less than this maximum (MAXSFN), execution in step K then is if calling time (PO) is more than or equal to this maximum (MAXSFN), then execution in step L;
K. the calling time (PO) under the current n value is designated as PO
n, allow p equal n+1 and allow n add 1 back rebound step I automatically and carry out;
L. submit to through above-mentioned steps and handle whole corresponding calling time (PO) value that obtains, PO with each n value
0, PO
1, PO
2..., PO
P-1
Discontinuous receiving cycle length in the described steps A is the number in 8,16,32,64,128,256,512, and the maximum of Cell System Frame Number (SFN) is 4095.
M position whole world mobile subscriber's identifier (IMSI) in the described steps A is a decimal number, is expressed as: IMSI=a
1a
2A
M-1a
m, a
1Be the 1st figure place, a
iBe i figure place wherein, 0≤a
i≤ 9.
In the described steps A, when mobile subscriber terminal does not have global mobile subscriber's identifier (IMSI), use default value: IMSI=0 and allow the discontinuous receiving cycle length be 2.56 seconds.
In the described step F, be utilize that counter carries out the 1st cyclic variable i add 1 automatically.
In the described step K, be utilize two counters carry out respectively efficient paging constantly number p and the 2nd cyclic variable n add 1 automatically.
Also comprise the method that realizes calculating paging indication (PI), paging indication (PI) equals: remove integer part after 8192 again divided by the remainder of Integer N p with m position whole world mobile subscriber's identifier (IMSI), Np is the paging indicator number in each frame, and the Np under the frequency division multiplexing pattern is taken as the number in 18,36,72,144.
The present invention is expressed as global mobile subscriber's identifier (IMSI):
IMSI＝a
1a
2…a
m-1a
m
＝a
1×10
m-1+a
2×10
m-2+…+a
m-1×10
1+a
m
＝(((10×a
1+a
2)×10+a
3)×10+…+a
m-1)×10+a
m，
0≤a
i≤ 9, the figure place of global mobile subscriber's identifier (IMSI) is m.
The present invention recycles three mathematical formulaes of being derived: (a*b) mod c=((a mod c) * (b modc)) mod c; (a div b) mod c=(a mod (b*c)) div b; (a+b) mod c=(a mod c+b mod c) mod c, and be applied to and realize that calling time (PO) is selected in the formula under the idle pulley, under time division multiplexing, PO={ (IMSI div K) mod (DRX cycle lengthdiv PBP) } * PBP+n*DRX cycle length+Frame Offset, and under the frequency division pattern, then because of PBP=1, Frame Offset=0, and be reduced to: PO=(IMSI div K) mod (DRX cyclelength)+n* (DRX cycle length).
Method of the present invention is compared with the implementation method that the mode that traditional employing mosaic is grown is preserved global mobile subscriber's identifier (IMSI), the technical scheme of realization calling time of the present invention (PO) computing formula has that amount of calculation is little, algorithm realizes simple and the good characteristics of versatility.
Description of drawings
Fig. 1 is the FB(flow block) that the present invention realizes calling time computing formula under the frequency division multiplexing pattern.
Embodiment
The present invention selects formula to the calculating that realizes calling time under the idle pulley, has provided a kind of general, simple and high-efficiency method.
We suppose global mobile subscriber's identifier IMSI=a
1A
M-1a
mBe a m position decimal number, m is a positive integer, and wherein any (i position) decimal number is expressed as a
i, 0≤a
i≤ 9, i=1,2 ..., m, a
1The highest order of expression IMSI, a
mThe lowest order of expression IMSI.The computing formula of calling time (PO:Paging Occasion) is under known frequency division multiplexing (FDD) idle pulley:
PO=(IMSI div K) mod (DRX cycle length)+n* (DRX cycle length), wherein IMSI represents global mobile subscriber's identifier, K has equaled to carry the number of the Secondary Common Control Physical Channel (SCCPCH) of paging channel (PCH), DRX cycle length represents discontinuous receiving cycle length, positive integer n=0,1,2,, 4095, calling time (PO) value that requirement obtains is less than the maximum of Cell System Frame Number (SFN).In the formula, if user terminal (UE) does not have global mobile subscriber's identifier (IMSI), then user terminal (UE) uses default value: IMSI=0; Discontinuous receiving cycle length is 2.56 seconds (DRXcycle length=256).
Because the technic relization scheme of calling time selection formula is similar under the technic relization scheme that calling time is selected formula under time division multiplexing (TDD) idle pulley and frequency division multiplexing (FDD) idle pulley, thereby present embodiment only provides the technic relization scheme of calling time computing formula under frequency division multiplexing (FDD) idle pulley.
In conjunction with referring to Fig. 1, be the technical step of realizing calling time computing formula under frequency division multiplexing (FDD) idle pulley, comprising:
Step 1, typing whole world mobile subscriber's identifier (IMSI), discontinuous receiving cycle length (DRX cyclelength=8,16,32,64, in 128,256 or 512 one), the number K of having carried the Secondary Common Control Physical Channel (SCCPCH) of paging channel (PCH), and the maximum (MAXSFN) of Cell System Frame Number (SFN);
Step 2: a local variable sum is set, and is the 1st bit value a of IMSI to local variable sum initialize
1, i.e. sum=a
1
Step 3: calculate sum=sum mod (DRX cycle length * K), promptly allow new local variable sum equal the remainder of former local variable sum divided by K discontinuous receiving cycle length (DRX cycle length*K) doubly;
Step 4: to the 1st cyclic variable i initialize is 2, i.e. i=2;
Step 5: whether the value i that judges the 1st cyclic variable smaller or equal to the figure place m of decimal system IMSI, i.e. i≤m, if execution in step 6 then, if not execution in step 7 then;
Step 6: when i≤m, allow new local variable sum equal 10 times former local variable sum and the whole world, i position mobile subscriber's identifier decimal system numerical value and, sum=(10 * sum+a
i), again divided by doubly discontinuous receiving cycle length of the K (remainder of DRX cycle length * K), be sum=(10 * sum+ai) mod (DRX cycle length * K), relief the 1st cyclic variable i that is finished adds 1 automatically, i=i+1, and return step 5 and continue to carry out, adding automatically of the 1st cyclic variable i 1 can utilize counter to finish, step 5,6 the 1st circulations that constitute in the flow processs;
Step 7: when i＞m, allow new local variable sum equal the integer part of former local variable sum after divided by K, i.e. sum=sum div K, for example 81 div 4=20 promptly keep 20.25 integer part 20, give up 20.25 fractional part 0.25;
Step 8: the 2nd cyclic variable n is set, and is 0 to the n initialize, and n=0 represents with p that with the number of (promptly effective) calling time (PO) of having chosen putting p is 0, p=0;
Step 9: allow calling time (PO) equal the present worth of local variable sum and n discontinuous receiving cycle length doubly and, Paging Occasion=sum+n * DRX cycle length,
Step 10: judge that calling time (PO) is whether less than the maximum (MAXSFN) of Cell System Frame Number, be Pagin Occasion＜MAXSFN, if calling time (PO) is less than this maximum (MAXSFN), then execution in step 11, if calling time (PO) is more than or equal to this maximum (MAXSFN), then execution in step 12;
Step 11: the calling time (PO) under the current n value is designated as PO
n, PO
n=Paging Occasion, and allow p=n+1; N=n+1, jump procedure 9 continues to carry out, and adding automatically of p and n 1 can utilize counter to realize, the 2nd circulations in step 9,10, the 11 formation flow processs;
Step 12: will calculate whole corresponding calling time (PO) value that obtains, PO with each n value
0, PO
1, PO
2..., PO
P-1Submit to physical layer, for its selection, and termination routine.
Can use the same method and realize the selection formula of calling time under time division multiplexing (TDD) idle pulley: PO={ (IMSI div K) mod (DRX cycle length div PBP) * PBP+n*DRX cycle length+Frame Offset, the FrameOffset item that has more than the selection formula of calling time under the frequency division multiplexing idle pulley, the vertical shift of expression Page Indication Channel, its value is given in system message; The PBP item that has more is represented paging block periodicity, equals the repetition period of the Page Indication Channel (PICH) in the system information broadcast.
In order to understand the technology performing step of the selection formula of calling time under frequency division multiplexing of the present invention (FDD) idle pulley better, be that example further specifies with 7 decimal system whole world mobile subscriber's identifier IMSI.
The global mobile subscriber's identifier IMSI=a of example 1. hypothesis
1a
2a
3A
M-1a
m=1234567, be one 7 decimal number, i.e. m=7, number K=4 of having carried the Secondary Common Control Physical Channel (SCCPCH) of paging channel (PCH), discontinuous receiving cycle length DRX cycle length=256, the maximum MAXSFN=4095 of Cell System Frame Number.Need the calling time (Paging Occasion) selected so under frequency division multiplexing (FDD) idle pulley, the technical scheme that adopts the present invention to propose realizes as follows:
The 1st step: import global mobile subscriber's identifier IMSI=1234567, K=4 is the number of having carried the Secondary Common Control Physical Channel (SCCPCH) of paging channel (PCH), discontinuous receiving cycle length DRXcycle length=256, the maximum MAXSFN=4095 of Cell System Frame Number;
The 2nd step:, be the 1st figure place 1 of IMSI, sum=1 promptly to local variable sum initialize;
The 3rd step: sum=sum mod (DRX cycle length * K)=1mod (256 * 4)=1, promptly local variable sum equals the remainder of sum=1 divided by (DRX cycle length) * K, DRX cycle length=256, K=4;
The 4th step: i=2 is 2 to cyclic variable i initialize promptly;
The 5th step: because cyclic variable i=2 less than the figure place 7 of IMSI, therefore carried out for the 6th step;
The 6th step: sum=(10 * sum+a
2) (DRX cycle length * K)=12, promptly sum equals (10 * sum+a to mod
2) divided by (remainder of DRX cycle length * K), the 1st cyclic variable i=i+1=3 because cyclic variable i less than the figure place 7 of IMSI, therefore carried out for the 7th step, continue to carry out the 1st cycling;
The 7th step: sum=(10 * sum+a
3) (the mod 1024=123 of DRX cycle length * K)=123, promptly sum equals (10 * sum+a to mod
3) divided by (remainder of DRX cycle length * K), the 1st cyclic variable i=i+1=4 because therefore cyclic variable i carried out for the 8th step still less than the figure place 7 of IMSI, continue to carry out the 1st cycling;
The 8th step: sum=(10 * sum+a
4) (the mod 1024=210 of DRX cycle length * K)=1234, promptly sum equals (10 * sum+a to mod
4) divided by (remainder of DRX cycle length * K), the 1st cyclic variable i=i+1=5 still less than the figure place 7 of IMSI, therefore carried out for the 9th step, continued to carry out the 1st cycling;
The 9th step: sum=(10 * sum+a
5) (the mod 1024=57 of DRX cycle length * K)=2105, promptly sum equals (10 * sum+a to mod
5) divided by (remainder of DRX cycle length * K), the 1st cyclic variable i=i+1=6 owing to still less than the figure place 7 of IMSI, therefore carried out for the 10th step, continue to carry out the 1st cycling;
The 10th step: sum=(10 * sum+a
6) (the mod 1024=576 of DRX cycle length * K)=576, promptly sum equals (10 * sum+a to mod
6) divided by (remainder of DRX cycle length * K), the 1st cyclic variable i=i+1=7 because the 1st cyclic variable i equals the figure place 7 of global mobile subscriber's identifier IMSI, therefore carried out for the 11st step, continued to carry out the 1st cycling;
The 11st step: sum=(10 * sum+a
7) (the mod 1024=647 of DRX cycle length * K)=5767, promptly sum equals (10 * sum+a to mod
7) divided by (remainder of DRXcyclelength * K), cyclic variable i=i+1=8 because the 1st cyclic variable i greater than the figure place 7 of global mobile subscriber's identifier IMSI, therefore carried out for the 12nd step, jump out the 1st circulation;
The 12nd step: sum=sum div K=647 div 4=161, promptly local variable sum equals the integer part of sum after divided by K;
The 13rd step: to the 2nd cyclic variable n initialize is 0, i.e. n=0; The number p=0 of the calling time that note has been selected;
The 14th step: Paging Occasion=sum+n * DRX cycle length=161;
The 15th step: because Paging Occasion=161 is less than the maximum MAXSFN=4095 of Cell System Frame Number; Therefore carried out for the 16th step;
The 16th step: PO
0=161, p=n+1=1; N=n+1=1; Carried out for the 17th step (actual is to carry out in the 14th step of redirect);
The 17th step: the process that repeats the 14th step, the 15th step, the 16th step is jumped out the 2nd circulation till the PagingOccasion value that calculates is during more than or equal to the maximum MAXSFN=4095 of Cell System Frame Number.
We can calculate:
PO
1＝417，p＝n+1＝2，n＝n+1＝2；
PO
2＝673，p＝n+1＝3，n＝n+1＝3；
PO
3＝929，p＝n+1＝4，n＝n+1＝4；
PO
4＝1185，p＝n+1＝5，n＝n+1＝5；
PO
5＝1441，p＝n+1＝6，n＝n+1＝6；
PO
6＝1697，p＝n+1＝7，n＝n+1＝7；
PO
7＝1953，p＝n+1＝8，n＝n+1＝8；
PO
8＝2209，p＝n+1＝9，n＝n+1＝9；
PO
9＝2465，p＝n+1＝10，n＝n+1＝10；
PO
10＝2721，p＝n+1＝11，n＝n+1＝11；
PO
11＝2977，p＝n+1＝12，n＝n+1＝12；
PO
12＝3233，p＝n+1＝13，n＝n+1＝13；
PO
13＝3489，p＝n+1＝14，n＝n+1＝14；
PO
14＝3745，p＝n+1＝15，n＝n+1＝15；
PO
15＝4001，p＝n+1＝16，n＝n+1＝16；
Since this moment, PO
16=4257, therefore jump out the 2nd circulation greater than Cell System Frame Number MAXSFN=4095, carried out for the 18th step;
The 18th step: return the calculated value of calling time (Paging Occasion), have 16: PO
0=161, PO
1=417, PO
2=673, PO
3=929, PO
4=1185, PO
5=1441, PO
6=1697, PO
7=1953, PO
8=2209, PO
9=2465, PO
10=2721, PO
11=2977, PO
12=3233, PO
13=3489, PO
14=3745, PO
15=4001, finish.
Equally also can realize paging indication (PI:Paging Indicator) computing formula: PI=(IMSIdiv 8192) mod Np, wherein IMSI is global mobile subscriber's identifier, Np=(18 under frequency division multiplexing (FDD) pattern, 36,72,144), represent the paging indicator number in each frame, under time division multiplexing (TDD) pattern, Np is each paging block paging indicated number, and by paging indicating length L given in the system information
PI, outburst type (long or short infix) and Page Indication Channel (PICH) repeat length calculate (8192 in formula and Np value are by the agreement decision)
Implementation method of the present invention through on probation in the WCDMA of Huawei mobile subscriber terminal product, obtains good effect.
Claims (7)
1. a mobile subscriber terminal is selected the implementation method of calling time under idle pulley, is applied to it is characterized in that comprising following treatment step in the frequency division multiplexing WCDMA mobile communication system:
A. import parameter, comprise global mobile subscriber's identifier (IMSI), the discontinuous receiving cycle length of m position, the number K of having carried the Secondary Common Control Physical Channel (SCCPCH) of paging channel (PCH), and the maximum (MAXSFN) of Cell System Frame Number (SFN);
B., a local variable sum is set, and the initial value tax of local variable sum is the 1st bit value of global mobile subscriber's identifier (IMSI);
C. allow new local variable sum equal: former local variable sum (integer) is divided by the remainder of K discontinuous receiving cycle length (integer) doubly;
D. the initial value of the 1st cyclic variable i being composed is 2;
E. judge whether the value of the 1st cyclic variable i is less than or equal to the figure place m of global mobile subscriber's identifier (IMSI), if execution in step F then, if not execution in step G then;
F. allow new local variable sum equal: in 10 times former local variable sum and the global mobile subscriber's identifier numerical value of i position and (integer) again divided by the remainder of K discontinuous receiving cycle length (integer) doubly, and allow the 1st cyclic variable i add 1 automatically, and return step e and continue to carry out;
G. allow new local variable sum equal: the integer part of former local variable sum (integer) after divided by K (integer);
H., the 2nd cyclic variable n is set, and the initial value of n is composed is 0, represents the number of the calling time (PO) that chosen with p, and to put p be 0;
I. allow calling time (PO) equal the present worth of local variable sum and n discontinuous receiving cycle length doubly and;
J. judge that calling time (PO) is whether less than the maximum (MAXSFN) of Cell System Frame Number, if calling time (PO) is less than this maximum (MAXSFN), execution in step K then is if calling time (PO) is more than or equal to this maximum (MAXSFN), then execution in step L;
K. the calling time (PO) under the current n value is designated as PO
n, allow p equal n+1 and allow n add 1 back rebound step I automatically and carry out;
L. submit to through above-mentioned steps and handle whole corresponding calling time (PO) value that obtains, PO with each n value
0, PO
1, PO
2..., PO
P-1
2. a kind of mobile subscriber terminal according to claim 1 is selected the implementation method of calling time under idle pulley, it is characterized in that: the discontinuous receiving cycle length in the described steps A is the number in 8,16,32,64,128,256,512, and the maximum of Cell System Frame Number (SFN) is 4095.
3. a kind of mobile subscriber terminal according to claim 1 is selected the implementation method of calling time under idle pulley, be characterised in that altogether: the m position whole world mobile subscriber's identifier (IMSI) in the described steps A is a decimal number, is expressed as: IMSI=a
1a
2A
M-1a
m, a
1Be the 1st figure place, a
iBe i figure place wherein, 0≤a
i≤ 9.
4. a kind of mobile subscriber terminal according to claim 1 is selected the implementation method of calling time under idle pulley, be characterised in that altogether: in the described steps A, when mobile subscriber terminal does not have global mobile subscriber's identifier (IMSI), use default value: IMSI=0 and allow the discontinuous receiving cycle length be 2.56 seconds.
5. a kind of mobile subscriber terminal according to claim 1 is selected the implementation method of calling time under idle pulley, be characterised in that altogether: in the described step F, be utilize that counter carries out the 1st cyclic variable i add 1 automatically.
6. a kind of mobile subscriber terminal according to claim 1 is selected the implementation method of calling time under idle pulley, be characterised in that altogether: in the described step K, be utilize two counters carry out respectively efficient paging constantly number p and the 2nd cyclic variable n add 1 automatically.
7. a kind of mobile subscriber terminal according to claim 1 is selected the implementation method of calling time under idle pulley, be characterised in that altogether: also comprise the method that realizes calculating paging indication (PI), paging indication (PI) equals: remove integer part after 8192 again divided by the remainder of Integer N p with m position whole world mobile subscriber's identifier (IMSI), Np is the paging indicator number in each frame, and the Np under the frequency division multiplexing pattern is taken as the number in 18,36,72,144.
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