CN100536618C - Method for processing page indicating channel in CDMA system - Google Patents

Method for processing page indicating channel in CDMA system Download PDF

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Publication number
CN100536618C
CN100536618C CNB2005101128588A CN200510112858A CN100536618C CN 100536618 C CN100536618 C CN 100536618C CN B2005101128588 A CNB2005101128588 A CN B2005101128588A CN 200510112858 A CN200510112858 A CN 200510112858A CN 100536618 C CN100536618 C CN 100536618C
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paging
subframe
pich
indication
terminal
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CN1949920A (en
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王玉
戎波
刘洪波
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Leadcore Technology Co Ltd
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Datang Mobile Communications Equipment Co Ltd
Leadcore Technology Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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Abstract

The invention relates to a PICH processing method in CDMA system, using each subframe as unit to make PICH processing operation, determining whether to require PCH processing according to the obtained PICH result. And it can in time process PICH result, the terminal only needs to receive and process one subframe in PICH wireless frame, thus switching from normal operating state to sleep state by a lead of one subframe, or switching from sleep state to normal operating state by a lag of one subframe, thus able to maximumly achieve power saving purpose, and prolong standby time by above 10%.

Description

Handle the method for Page Indication Channel in a kind of code division multiple access system
Technical field
The present invention relates to code division multiple access (CDMA) system, relate in particular to and be used for the method that code division multiple access (CDMA) system handles Page Indication Channel (PICH).
Background technology
In cdma system, after the terminal power-on, carry out the cell initial search process, finally enter into idle pulley.Under idle pulley, the terminal that is in holding state needs regularly to monitor paging.The system information of Web broadcast and paging content were carried out with the fixed cycle, so terminal there is no need to understand constantly all system informations and the content of all paging blocks on the paging channel, thereby can save the power supply power consumption of terminal greatly, improve the stand-by time of terminal.
In the prior art, under the general situation, terminal is deciphered the Page Indication Channel (PICH) of a radio frames, judges whether that according to decode results needs handle corresponding paging channel (PCH) again.Fig. 1 has provided the flow chart of handling the Page Indication Channel method in the prior art TD-SCDMA system.As shown in Figure 1, terminal receives the paging indication P that comprises this terminal q((wherein, q=0 ..., N PI-1), P q∈ 0,1}, N PIBe the paging indication number of predefined each radio frames carrying) the PICH data of a radio frames, then the PICH data of the radio frames that received are carried out despreading and descrambling, and the result behind despreading and the descrambling separated the bit scrambler, to obtain bearing call indication P in this radio frames qBit (PICH bit).The previous subframe that its corresponding paging indication of terminal judges is positioned at the PICH radio frames still is a back subframe, afterwards, and according to the paging indication P of this terminal correspondence qQ value and paging indication P qAnd the mapping relations table of comparisons between the PICH bit is judged, obtains the paging indication P of this terminal qValue.According to this paging indication P qValue judge whether need to receive corresponding PCH, when needs receive, judge again whether the time interval between PICH and the PCH very long, if then can enter sleep state; When not needing to receive, judge again whether two time intervals between the PICH are very long, if then can enter sleep state.Hence one can see that, system when not needing to understand the content of the paging block on system information and the paging channel and have time enough at interval, by entering sleep state, can the conserver power source power consumption.
Yet in above-mentioned prior art, the previous subframe that the paging indication no matter terminal needs is positioned at the radio frames of PICH still is a back subframe, all will arrive could obtain after this radio frames finishes.If promptly terminal can obtain the information of needs from first subframe of PICH radio frames, still need to handle the information of second subframe, can not change sleep state as early as possible over to; Correspondingly, if terminal was in sleep state before receiving PICH, and its information that need obtain is positioned at second subframe of PICH radio frames, still needing in advance, a subframe changes normal operating conditions over to from sleep state, and needs are handled the information of first subframe, the time reference that to be terminal change normal operating conditions over to by sleep state is fixed as first subframe of PICH radio frames, that is to say, two subframes all need be in mode of operation, power consumption is big, and this is unfavorable for reaching purpose of power saving to greatest extent.
Summary of the invention
The object of the present invention is to provide the method for handling Page Indication Channel in a kind of code division multiple access system, it can in time be handled PICH result.
Another object of the present invention is power saving to greatest extent.
In order to realize purpose of the present invention, the invention provides in a kind of cdma system the method for handling PICH, a radio frames of described cdma system comprises at least two same sub, 1) the paging indication P of this terminal correspondence of terminal judges qBe positioned at which subframe of PICH radio frames, wherein, q=0 ..., N PI-1, P q∈ 0,1}, N PIIt is the paging indication number of predefined each radio frames carrying; 2) this terminal receives the paging indication P that comprises this terminal qThe PICH data of subframe, do not need to receive other sub-frame data of PICH; 3) in step 2) in the PICH data of the subframe that received carry out despreading and descrambling, and the result behind despreading and the descrambling is separated the bit scrambler, to obtain bearing call indication P in this subframe qBit; 4) indicate P according to the paging of this terminal correspondence qQ value and paging indication P qAnd the mapping relations table of comparisons between the PICH bit is judged, obtains the value of the paging indication of this terminal.
Utilize the present invention, indicate the situation that is in first subframe, can obtain the result than the Zao subframe of prior art for paging.And employing the present invention, only need a subframe to be in mode of operation, the another one subframe can be in sleep pattern, and two subframes all need be in mode of operation in the prior art, power consumption is big.Therefore, the present invention's power saving more.
Description of drawings
Fig. 1 has provided prior art is handled the Page Indication Channel method in the TD-SCDMA system flow chart;
Fig. 2 shows the indication of PICH bearing call;
Fig. 3 shows the PICH block structure;
Fig. 4 shows paging subchannel and corresponding PICH piece and PCH piece;
Fig. 5 A has provided the embodiment of a kind of sequential of paging receiving indication in the prior art;
Fig. 5 B has provided the sequential chart that paging indication that the present invention receives is positioned at the last subframe of PICH radio frames;
Fig. 5 C has provided the sequential chart that paging indication that the present invention receives is positioned at the back subframe of PICH radio frames;
Fig. 6 has provided the present invention handles the Page Indication Channel method in the TD-SCDMA system flow chart.
Embodiment
Below, describe the present invention by specific embodiment in conjunction with the accompanying drawings, but the present invention not merely is limited to this.
In the TD-SCDMA system, the data that Page Indication Channel (PICH) does not carry transmission channel, itself and transmission channel PCH pairing are used, and whether need to understand the PCH channel of following thereafter in order to indicate specific terminal.The content of PICH channel is made up of the bit of a series of bearing call indications, carries the bit length L of each paging indication PIBe predefined, also can specify by network.For the TD-SCDMA system, according to the description in 3GPP standard 25.221 and 25.222, owing to adopt the QPSK modulation, each radio frames of PICH is used the indication of NPIB=352 bit (i.e. 176 symbols) bearing call, as shown in Figure 2, and its i={0,2,3,4,5,6}.Each paging indication P q((wherein, q=0 ..., N PI-1), P q∈ 0,1}, N PIBe the paging indication number of each radio frames carrying) be mapped to the bit of subframe #1 or subframe #2
Figure C20051011285800061
On.N PIBy paging indicating length L PIDraw.Table 1 has provided different paging indicating length L PICorresponding paging indication number N PI
Table 1
Paging indicating length L PI L PI=2 (symbols) L PI=4 (symbols) L PI=8 (symbols)
Every radio frames N PI 88 44 22
Under idle pulley, be operated in the terminal paging receiving piece under DRX (discontinuous reception) pattern.As shown in Figure 4, each paging block comprises a PICH piece and a PCH piece.Between PICH and PCH, network will guarantee that terminal has enough processing time (N GAPFrame), promptly between PICH block end and PCH piece are initial, has frame period N GAP, N wherein GAP＞0, its value is predefined.
Wherein, a PICH piece is by N continuous PICHThe paging of individual radio frames indication is formed, as shown in Figure 3, and N wherein PICHSpecify by network.Each PICH piece can carry N P=N PICH* N PIIndividual paging indication.
Network be PI of each terminal distribution (PI=0 ..., N P-1), P is indicated in the paging of n radio frames carrying in this value and the PICH piece qBetween relation as follows:
q＝PI mod N PI
n＝PI div N PI (1)
In order to use discontinuous reception (DRX) mechanism effectively, PCH is divided into the PCH piece, and each PCH piece comprises N PCHIndividual paging subchannel, wherein N PCHBy high-rise assignment.Each paging subchannel is mapped to two continuous PCH radio frames of a PCH piece.Only send for layer 3 message of designated terminal on the paging subchannel of this terminal in network allocation.As can be known from Fig. 3, giving terminal distribution paging subchannel is two independently processes with giving terminal distribution paging indication.
Table 2 has provided the mapping relations between paging indication and the PICH bit.An if paging indication P in PICH piece qBe changed to " 1 ", then show and this paging indication P qCorresponding terminal need read corresponding paging subchannel in the same paging block; An if paging indication P in PICH piece qBe changed to " 0 ", then show and this paging indication P qCorresponding terminal does not need to read corresponding paging subchannel in the same paging block.
Table 2
Figure C20051011285800071
The PICH bit that obtains according to mapping relations shown in the table 2 also needs to carry out the bit scramble processing.If the bit before the bit scramble is s 1, s 2, s 3..., s S, wherein S is the total bit number of input, the bit behind the bit scramble is h 1, h 2, h 3..., h SBit scramble carries out in the following manner:
h k = s k ⊕ p k k＝1，2…，S (2)
P wherein kObtain in the following manner:
p k = ( Σ i = 1 16 g i · p k - i ) mod 2 ; - - - ( 3 )
P wherein k=0; K＜1;
p 1＝1；
g＝{0，0，0，0，0，0，0，0，0，0，1，0，1，1，0，1}
It is that 16 spread spectrum and scrambling are handled that bit after handling through bit scramble also needs through spreading factor, could finally send from the base station.
At receiving terminal, terminal is according to the indication of network, and when decision receives the PICH radio frames.Terminal receives the PICH data of first subframe, carries out despreading and descrambling operation, and the result is preserved.It is consistent with the operation of other physical channel being carried out despreading and descrambling PICH to be carried out the operation of despreading and descrambling, does not describe in detail at this.Terminal receives the PICH data of second subframe then, carries out despreading and descrambling operation, and with the cascade as a result of a result and a last subframe.During cascade, the result of first subframe is preceding, the result of second subframe after, and the result after the meter cascade is h ' 1, h ' 2, h ' 3..., h ' SNext, the result after first subframe and second the subframe cascade is separated the bit scrambler, to obtain final PICH bit, meter is made s ' 1, s ' 2, s ' 3..., s ' SPromptly earlier calculate p according to formula (3) kValue, obtain to separate the s ' as a result of bit scrambler then according to formula (2) 1, s ' 2, s ' 3..., s ' SAt last, according to the q value and the table 2 of this terminal correspondence, judge continuous 2L PIIndividual bit Value, obtain this paging terminal indication P ' qValue.
Terminal judges whether that according to the paging indication needs receive corresponding PCH.If P ' qValue be 0, the expression do not need to receive corresponding PCH, then further judge whether to enter sleep pattern.If the time interval between two PICH is very long,, can enter sleep pattern by indicating terminal in order to reach the power saving purpose.During this period, remove nonterminal and need insert at random or monitoring system message, otherwise terminal is not carried out any operation, related device and clock are closed, to reduce the energy loss of terminal.If P ' qValue be 1, need to receive corresponding PCH, then further judge whether to enter sleep pattern.And if the interval (N between the corresponding PCH GAP) long, in order to reach the power saving purpose, do not need to insert at random or during monitoring system message, can enter sleep pattern by indicating terminal, otherwise terminal does not enter sleep pattern yet in terminal.
It is pointed out that terminal before entering sleep pattern, need calculate when change normal mode of operation over to from sleep pattern.A kind of method is at first to determine to change over to from sleep pattern the time reference of normal mode of operation, with this time reference deduction device stabilization time and processing time, obtains terminal changes normal mode of operation reality over to from sleep pattern time point.Obviously, for prior art, the time reference that changes normal mode of operation from sleep pattern over to is the radio frames original position (being the original position of first subframe) of PICH.
The present invention is directed to each radio frames and comprise the cdma system of at least two identical subframes, is unit with each subframe, carries out the PICH decoded operation, and judges whether that according to resultant PICH result needs carry out PCH and handle.Adopt this method, can in time handle PICH result.Terminal only needs a subframe in reception and the processing PICH radio frames all the time, thereby in advance subframe changes sleep state over to or the subframe of delaying time changes normal operating conditions over to from sleep state from normal operating conditions, indicate the situation that is positioned at first subframe for paging, can in time obtain the result of PICH.
As shown in Figure 6, it is an example with the TD-SCDMA system, has provided the flow chart of method of the present invention.
At step S101, the paging of this terminal correspondence of terminal judges indication P qThe previous subframe that is positioned at the PICH radio frames still is a back subframe.Indicate P according to the bearing call that a PICH radio frames is used qBit number (be length L PI), try to achieve paging indication P qNumber N PI, value and the N of the q of this terminal of comparison correspondence PI/ 2, obtain this paging indication P qCorresponding subframe position.Wherein, preceding N PI/ 2 paging indication P qBe positioned at first subframe, back N PI/ 2 paging indication P qBe positioned at second subframe.In the TD-SCDMA system, a PICH radio frames is used 352 bit bearing call indication P q, paging indication P qNumber be N PI=352/2L PI
At step S 102, terminal receives the paging indication P that comprises this terminal qThe PICH data of subframe, be used for ensuing processing, and do not need to receive another sub-frame data of PICH.
At step S103, the PICH data of the subframe that received in step S102 are carried out despreading and descrambling, and the result behind despreading and the descrambling is separated the bit scrambler, to obtain bearing call indication P in this subframe qBit (PICH bit).
Suppose that first subframe of PICH comprises the paging indication P of described terminal q, then terminal receives first subframe of PICH, and the result behind despreading and the descrambling is h ' 1, h ' 2, h ' 3..., h ' S/2, separate the bit scrambler according to aforementioned formula (2) and formula (3) result after to despreading and descrambling then, obtain the bit s ' of the paging indication of first subframe 1, s ' 2, s ' 3..., s ' S/2Next, according to the q value and the aforementioned table 2 of this terminal correspondence, judge continuous 2L PIIndividual bit
Figure C20051011285800101
Value, obtain this paging terminal indication P qValue.The operation of bit scrambler is carried out at radio frames, begins to handle from first subframe.Because 16 bit values of each bit value and front are relevant, so, second subframe separated the bit scrambler, need back 16 bits of first subframe, recursion successively need be from the initial beginning computing of first subframe.
Indicate the situation that is positioned at second subframe of PICH for paging,, need calculate earlier p always according to formula (3) in order to separate the operation of bit scrambler S/2-15P S/2, that just can carry out second subframe separates the bit scrambler.The processing of other operation and first subframe is similar.
At step S104, according to the paging indication P that provides in the q value of this terminal correspondence and the above-mentioned table 2 qAnd the mapping relations between the PICH bit are judged, obtain the paging indication P of this terminal qValue.If
Figure C20051011285800102
Value be complete 0, the corresponding paging indication P of expression then qValue be 0, if be complete 1, the corresponding paging indication P of expression then.Value be 1.
At step S105, described terminal obtains corresponding paging indication P in described step S104 qAfter, according to this paging indication P qJudge whether to need to receive corresponding PCH.If P qBe 0, expression does not need to receive PCH, if P qBe 1, expression needs to receive PCH.
If terminal does not need to receive corresponding PCH, then enter step S106, in order to reach the power saving purpose, judge whether two time intervals between the PICH are very long, if the time interval is very long, then can indicate described terminal to enter sleep pattern (step S108), up to prepare to receive PICH next time, otherwise do not enter sleep pattern, the standby wait receives PICH next time, at this moment, and for power saving, can also carry out some processing, for example, can use the frequency reducing technology that clock frequency is reduced to original half even lower, but unlike sleep pattern, close clock, make power consumption less than the power consumption under the mode of operation, but than the power consumption under the sleep pattern big (step S109);
If described terminal need receive corresponding PCH, then enter step S107, in order to reach the power saving purpose, judge whether the interval between PICH and the corresponding PCH is very long, if very long at interval, then can indicate described terminal to enter sleep pattern, up to preparing to receive corresponding PCH (step S108), otherwise described terminal does not enter sleep pattern, and standby is waited for and received PCH (step S109).
In said method,, then the previous subframe of PICH radio frames is handled and (be step S103～S109), and do not handle the data of second subframe if the paging of described terminal correspondence indication is positioned at the previous subframe of PICH radio frames.
In said method, if the paging of described terminal correspondence indication P qBe positioned at a back subframe of PICH radio frames, then a back subframe of PICH radio frames being handled (is step S103～S109).The data of handling among the step S 103 are the data of a subframe, may be that first subframe also may be second subframe, unique different be to p kProcessing.For paging indication P qWhen being positioned at first subframe, p kFrom p 1=1 beginning, S/2 value before only calculating.For paging indication P qWhen being positioned at second subframe, p kFrom p 1=1 beginning will be calculated S value, but uses S/2 the value in back to separate the bit scrambler, and does not need to handle earlier the data of first subframe.If described terminal was in sleep state before receiving PICH, then terminal is second subframe of PICH radio frames by the time reference that sleep state changes normal operating conditions over to, rather than first subframe of PICH radio frames.
In said process, when terminal is indicated P according to the paging that obtains qJudging does not need to receive PCH, and in the time of can entering sleep pattern, the time interval between adjacent two PICH will be satisfied the requirement that terminal is carried out sleep, perhaps judging needs to receive PCH, and in the time of can entering sleep pattern, the requirement that terminal is carried out sleep also will be satisfied in interval between PICH and the corresponding PCH, because terminal needs the time of a radio frames to change sleep pattern over to by normal mode of operation, need the time of a radio frames to change normal mode of operation (being device stabilization time and processing time) over to by sleep pattern.In addition, judge whether the time interval or the interval between PICH and the corresponding PCH between adjacent two PICH be very long, can be by comparing with a threshold value of rule of thumb determining in advance, and confirm that greater than this threshold value the time described interval is very long.
Usually, the time interval need just can enter sleep pattern at 2 more than the radio frames.One of them radio frames is used for changing sleep pattern over to by normal mode of operation, and a radio frames is used for changing normal mode of operation over to by sleep pattern, and the remaining time is exactly the time that is in sleep pattern.
It is pointed out that according to the present invention indicate the situation that is positioned at first subframe for paging, the time reference that changes normal mode of operation over to is the radio frames original position of PICH, i.e. the original position of first subframe.And be positioned at the situation of second subframe for paging indication, the time reference that changes normal mode of operation over to is second sub-frame start position of PICH radio frames, promptly with respect to the original position of PICH radio frames, the subframe of can delaying time this moment enters normal mode of operation.
Shown in Fig. 5 A, 5B, 5C, it has provided prior art and a kind of sequential of the present invention compares.Wherein, the implication that identical diagrammatic representation is identical for example is with oblique line to represent to separate the PICH operation, and the band horizontal line is represented sleep.Fig. 5 A has provided a kind of sequential of paging receiving indication in the prior art; Fig. 5 B has provided the sequential chart that paging indication that the present invention receives is positioned at the last subframe of PICH radio frames, compares with the prior art of Fig. 5 A, and the present invention's subframe in advance enters sleep pattern; Fig. 5 C has provided the sequential chart that paging indication that the present invention receives is positioned at a back subframe of PICH radio frames, compares with the prior art of Fig. 5 A, and the present invention postpones a subframe and change normal mode of operation over to from sleep pattern.Among Fig. 5 A, separate PICH constantly at radio frames n, and decision begins sleep constantly at radio frames n+2 according to the result, m-1 is waken up constantly up to radio frames, prepares to separate PICH constantly once more at radio frames m.Power consumption when wherein sleeping is smaller, and more than 10 times of power consumption will be sleep time of the power consumption during operate as normal.The situation of Fig. 5 B and Fig. 5 C and Fig. 5 category-A are seemingly.In Fig. 5 B and Fig. 5 C, owing to receive only the data of a subframe, as can be seen, originally 2 subframes are in normal operating conditions, have only a subframe to be in normal operating conditions now, and the another one subframe is in sleep state.Be positioned at the situation of first subframe for PICH, i.e. Fig. 5 B originally in running orderly is in second subframe (being second subframe of radio frames n+1 or radio frames m+1) that dormant subframe is positioned at the radio frames in PICH back now.Be positioned at the situation of second subframe for PICH, i.e. Fig. 5 C, original in running order first subframe (being first subframe of radio frames m-1) that dormant subframe is positioned at the radio frames in PICH front that is in now.
According to the present invention, can in time handle PICH result.And, if the information indication that obtains from first subframe does not need to monitor PCH, and can enter sleep state; Perhaps the information indication that obtains from first subframe needs to monitor PCH, and can enter sleep state, then can shift to an earlier date a subframe and enter sleep pattern.Similarly, if the paging of terminal correspondence indication is positioned at second subframe of PICH, and terminal was in sleep state before receiving PICH, then calculating the time reference that changes normal mode of operation over to from sleep pattern can be second subframe of PICH radio frames, rather than first subframe of PICH radio frames.Because big a lot (more than 10 times) therefore adopted the present invention to reach purpose of power saving to greatest extent when the power consumption ratio when terminal is in normal mode of operation was in sleep pattern, prolongs standby time is more than 10% at least again.
Foregoing is not to be used for limiting the specific embodiment of the present invention, and all modification and change or combinations of carrying out according to the main inventive concept of this method all should belong to protection range of the presently claimed invention.

Claims (8)

1. handle the method for PICH in the cdma system, a radio frames of described cdma system comprises at least two same sub, it is characterized in that:
1) paging of this terminal correspondence of terminal judges indication P qBe positioned at which subframe of Page Indication Channel PICH radio frames, wherein, q=0 ..., N PI-1, P q∈ 0,1}, N PIIt is the paging indication number of predefined each radio frames carrying;
2) this terminal receives and comprises its paging indication P qThe Page Indication Channel PICH data of subframe, do not need other sub-frame data of paging receiving indicating channel PICH;
3) in step 2) in the Page Indication Channel PICH data of the subframe that received carry out despreading and descrambling, and the result behind despreading and the descrambling is separated the bit scrambler, to obtain bearing call indication P in this subframe qBit;
4) indicate P according to the paging of this terminal correspondence qQ value and paging indication P qAnd the mapping relations table of comparisons between the Page Indication Channel PICH bit is judged, obtains the value of the paging indication of this terminal.
2. method according to claim 1 is characterized in that,
Described cdma system is the TD-SCDMA system,
In described step 1), the paging of this terminal correspondence of terminal judges indication P qThe previous subframe that is positioned at Page Indication Channel PICH radio frames still is a back subframe;
In described step 2) in, this terminal receives the paging indication P that comprises this terminal qThe Page Indication Channel PICH data of subframe, do not need another sub-frame data of paging receiving indicating channel PICH.
3. method according to claim 2 is characterized in that,
In described step 1), indicate P according to the bearing call that a Page Indication Channel PICH radio frames is used qBit number and length L thereof PI, try to achieve paging indication P qNumber N PI, with the value of the q of this terminal correspondence respectively with the preceding NPI/2 of this Page Indication Channel PICH radio frames and back NPI/2 relatively, to determine this paging indication P qBe positioned at last subframe or be positioned at back one subframe.
4. method according to claim 3 is characterized in that,
For the TD-SCDMA system, described paging indication P qNumber N PI=352/2 * L PI
5. method according to claim 1 and 2 is characterized in that, also comprises:
5) described terminal obtains corresponding paging indication P in described step 4) qAfter, according to this paging indication P qJudge whether to need to receive corresponding paging channel PCH, if do not need to receive corresponding paging channel PCH, judge further that then whether two time intervals between the Page Indication Channel PICH are greater than the predetermined interval threshold value, if, then indicate described terminal to enter sleep pattern, otherwise described terminal does not enter sleep pattern.
6. method according to claim 5 is characterized in that,
Described step 5), receive corresponding paging channel PCH if desired, judge further that then whether interval between Page Indication Channel PICH and the corresponding paging channel PCH is greater than the predetermined interval threshold value, if, then indicate described terminal to enter sleep pattern, otherwise described terminal does not enter sleep pattern.
7. method according to claim 3 is characterized in that,
In described step 2), if the paging of described terminal correspondence indication P qBe positioned at first subframe of Page Indication Channel PICH radio frames, the time reference that then described terminal changes normal mode of operation over to is the radio frames original position of Page Indication Channel PICH.
8. method according to claim 3 is characterized in that:
In described step 2), if the paging of described terminal correspondence indication P qThe back subframe and the described terminal that are positioned at Page Indication Channel PICH radio frames were in sleep state before paging receiving indicating channel PICH, then described terminal is second subframe of Page Indication Channel PICH radio frames by the time reference that sleep state changes normal operating conditions over to.
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