CN101351024B - Method for identifying downlink synchronization lose, apparatus and user terminal - Google Patents
Method for identifying downlink synchronization lose, apparatus and user terminal Download PDFInfo
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Abstract
The invention discloses a method for identifying downlink synchronization loss, which comprises: receiving page indicating information; counting the proportion of 1 or 0 in the page indicator values of the page indicating information and determining the synchronization of the current downlink according to the proportion; determining the loss of synchronization of the current downlink when the synchronization is smaller than a first preset threshold. Meanwhile, a device and a user terminal for identifying the loss of synchronization of the downlink are further disclosed. Taking advantage of the characteristic of a sending terminal that the values of the page indicating information are all 1 or 0, the user terminal determines the synchronization of the downlink according to the acquired page indicating information and judges whether the loss of synchronization of the downlink occurs according to the magnitude of the synchronization, thus solving the problem that, under standby mode, the user terminal has difficulties in searching the district once again in time and restoring normal standby as early as possible owing to being blind to the synchronous regime of the downlink.
Description
Technical field
The present invention relates to wireless communication technology field, more particularly, relate to a kind of recognition methods, device and terminal of downlink synchronization lose.
Background technology
In communication system, for the correct information that receives base station (BS) transmission, user terminal (UE) must carry out periodic samples and data frame analyzing to received signal with correct clock information, promptly realizes the down-going synchronous (DL Synchronization) with the base station.Down-going synchronous is the basis that user terminal can carry out proper communication.
In gsm system; The terminal can be according to CRC (the Cyclic RedundancyCheck of PCH; CRC) decode results judges whether down link is normal, if the continuous several times decoding error thinks that then down link is undesired; Web search can be carried out immediately again in the terminal, so that recover normal standby as early as possible.
And in 3-G (Generation Three mobile communication system), no matter FDD (Frequency Division Duplex, FDD) still is TDD (Time Division Duplex; Time division duplex) system; In order to save the terminal standby power consumption, system issues PCH (Paging Channel, PCH) no longer always; Inform whether user terminal need monitor beep-page message but send paging indication information through PICH (Paging Indicators Channel, Page Indication Channel).In user terminal standby process; If this user terminal is because a variety of causes (as away from cell footprint) is lost network; Particularly under TD-DCDMA common-frequency network environment, the signal overlap overlay area is disturbed bigger, under this environment; Even the P-CCPCH RSCP of the Serving cell that physical layer descending chain circuit synchronization loss, physical layer record (the received signal code territory power of Primary Common Control Physical Channel) value generally can be higher than minimum resident thresholding.In this case; Though user terminal can the paging receiving indication information, because paging letter indication information is without coding, so link-quality can't be judged according to the CRC decode results in the terminal; Can't in time understand down link and whether be in the synchronous state of losing; Cause losing under the synchronous situation, can't carry out web search again, further cause to recover normal standby as early as possible.
Summary of the invention
In view of this; The present invention provides a kind of recognition methods, device and terminal of downlink synchronization lose; To solve in third generation communication system; Under holding state, user terminal be owing to can't understand the synchronous regime of down link, thereby causes the problem that can't recover normal standby as early as possible owing to can't in time carry out the sub-district to search for again.
The present invention is achieved in that
A kind of recognition methods of downlink synchronization lose comprises:
The paging receiving indication information is added up in the value of each Paging Indicator in this paging indication information 1 or 0 proportion that accounts for, confirms the synchronous degree of current down link according to this proportion;
When this synchronous degree is preset thresholding less than first, confirm downlink synchronization lose.
Preferably, confirm the synchronous degree of current down link according to following steps:
With the group is unit, and statistics 1 or 0 accounts for the proportion of the value of all Paging Indicators in the group, and confirms respectively to organize the confidence level of paging indication according to this proportion;
Calculate the confidence level and the proportion of organizing number of all groups, when said proportion is preset thresholding above second, on the basis of existing downlink synchronization degree, increase by first and spend synchronously; Otherwise, on the basis of existing downlink synchronization degree, deduct second and spend synchronously; The said first synchronous degree and second degree synchronously is provided with according to user's request in advance.
With the downlink synchronization degree and first spend synchronously and or the poor synchronous degree of confirming as current down link.
Preferably, when with downlink synchronization degree and first synchronously degree and when surpassing predefined synchronous degree initial value, should spend initial value synchronously and be set to current downlink synchronization degree.
Preferably, confirm the synchronous degree of current down link according to following steps:
With the group is unit, and statistics 1 or 0 accounts for the proportion of the value of all Paging Indicators in the group, and confirms respectively to organize the confidence level of paging indication according to this proportion;
Calculate the confidence level of all groups and the proportion of group number, when said proportion was preset thresholding above second, increase by first is degree synchronously; Otherwise, deduct second and spend synchronously; The said first synchronous degree and second degree synchronously is provided with according to user's request in advance;
Other common signal channels are carried out CRC,, then increase the 3rd and spend synchronously if the result is correct; Otherwise, deduct the 4th and spend synchronously; The said the 3rd synchronous degree and the 4th degree synchronously is provided with according to user's request in advance;
The aforementioned calculation result is confirmed as the synchronous degree of current down link.
Preferably, when with downlink synchronization degree and first synchronously degree and when surpassing predefined synchronous degree initial value, should spend initial value synchronously and be set to current downlink synchronization degree.
Preferably, confirm respectively to organize the confidence level of paging indication according to following steps:
Calculate in the value of all Paging Indicators in said group 1 or 0 proportion, when this proportion surpasses the second preset thresholding or is lower than the 3rd preset thresholding, confirm that the paging of this group is designated as " credible ", confidence level increases by 1.
Preferably, said synchronous degree initial value is provided with according to the discontinuous receiving cycle length factor, and this spends initial value synchronously and the discontinuous receiving cycle length factor is inversely proportional to.
The invention also discloses a kind of recognition device of downlink synchronization lose, comprising:
Acquiring unit is used for regularly obtaining the paging indication information on the Page Indication Channel;
Synchronously degree is confirmed the unit, is used for adding up in the value of each Paging Indicator of this paging indication information 1 or 0 proportion that accounts for, confirms the synchronous degree of down link according to this proportion;
Judging unit is used for judging according to said synchronous degree whether down link synchronization loss takes place.
Preferably, degree confirms that the unit comprises synchronously:
Confidence level is confirmed the unit, is the proportion that unit statistics 1 or 0 accounts for the value of all Paging Indicators in the group with the group, and confirms respectively to organize the confidence level of paging indication according to this proportion;
First confirms the unit, calculates the confidence level and the proportion of organizing number of all groups, when said proportion is preset thresholding above second, on the basis of existing downlink synchronization degree, increases by first and spends synchronously; Otherwise, on the basis of existing downlink synchronization degree, deduct second and spend synchronously; The said first synchronous degree and second degree synchronously is provided with according to user's request in advance;
Second confirms the unit, with the downlink synchronization degree and first spend synchronously and or the poor synchronous degree of confirming as current down link.
Preferably, degree confirms that the unit comprises synchronously:
Confidence level is confirmed the unit, is the proportion that unit statistics 1 or 0 accounts for the value of all Paging Indicators in the group with the group, and confirms respectively to organize the confidence level of paging indication according to this proportion;
First confirms the unit, calculates the confidence level and the proportion of organizing number of all groups, when said proportion is preset thresholding above second, on the basis of existing downlink synchronization degree, increases by first and spends synchronously; Otherwise, on the basis of existing downlink synchronization degree, deduct second and spend synchronously;
Verification unit is carried out verification to the decode results of other common signal channel CRCs;
The 3rd confirms the unit, judges whether the check results of verification unit is correct, if, increase the 3rd and spend synchronously, otherwise, deduct the 4th and spend synchronously;
The 4th confirms the unit, confirms that with first the result of unit and second definite unit confirms as the synchronous degree of down link;
Said first synchronously degree, second synchronously degree, the 3rd synchronously degree and the 4th synchronously degree be provided with in advance according to user's request.
Preferably, synchronously degree confirms that the unit also comprises: the 5th confirms the unit, be used for when with downlink synchronization degree and first synchronously degree and during above predefined synchronous degree initial value, should spend initial value synchronously and be set to current downlink synchronization degree.
Preferably, said synchronous degree initial value is provided with according to the discontinuous receiving cycle length factor, and this spends initial value synchronously and the discontinuous receiving cycle length factor is inversely proportional to.
The present invention also discloses a kind of user terminal simultaneously, and comprise by acquiring unit, spend the recognition device of confirming that unit and judging unit are formed synchronously, wherein,
Said acquiring unit is used for regularly obtaining the paging indication information on the Page Indication Channel;
Said synchronous degree confirms that the unit is used for adding up in the value of each Paging Indicator of this paging indication information 1 or 0 proportion that accounts for, confirms the synchronous degree of down link according to this proportion;
Said judging unit is used for judging according to said synchronous degree whether down link synchronization loss takes place.
Preferably, degree confirms that the unit comprises synchronously:
Confidence level is confirmed the unit, is the proportion that unit statistics 1 or 0 accounts for the value of all Paging Indicators in the group with the group, and confirms respectively to organize the confidence level of paging indication according to this proportion;
First confirms the unit, calculates the confidence level and the proportion of organizing number of all groups, when said proportion is preset thresholding above second, on the basis of existing downlink synchronization degree, increases by first and spends synchronously; Otherwise, on the basis of existing downlink synchronization degree, deduct second and spend synchronously; The said first synchronous degree and second degree synchronously is provided with according to user's request in advance;
Second confirms the unit, with the downlink synchronization degree and first spend synchronously and or the poor synchronous degree of confirming as current down link.
Preferably, degree confirms that the unit comprises synchronously:
Confidence level is confirmed the unit, is the proportion that unit statistics 1 or 0 accounts for the value of all Paging Indicators in the group with the group, and confirms respectively to organize the confidence level of paging indication according to this proportion;
First confirms the unit, calculates the confidence level and the proportion of organizing number of all groups, when said proportion is preset thresholding above second, on the basis of existing downlink synchronization degree, increases by first and spends synchronously; Otherwise, on the basis of existing downlink synchronization degree, deduct second and spend synchronously;
Verification unit is carried out verification to the decode results of other common signal channel CRCs;
The 3rd confirms the unit, judges whether the check results of verification unit is correct, if, increase the 3rd and spend synchronously, otherwise, deduct the 4th and spend synchronously;
The 4th confirms the unit, confirms that with first the result of unit and second definite unit confirms as the synchronous degree of down link;
Said first synchronously degree, second synchronously degree, the 3rd synchronously degree and the 4th synchronously degree be provided with in advance according to user's request.
Preferably, synchronously degree confirms that the unit also comprises: the 5th confirms the unit, be used for when with downlink synchronization degree and first synchronously degree and during above predefined synchronous degree initial value, should spend initial value synchronously and be set to current downlink synchronization degree.
Preferably, said synchronous degree initial value is provided with according to the discontinuous receiving cycle length factor, and this spends initial value synchronously and the discontinuous receiving cycle length factor is inversely proportional to.
Compared with prior art, the present invention utilizes value complete 1 or complete 0 the characteristic of the paging indication information of transmitting terminal, after receiving terminal obtains this paging indication information; According to the proportion that calculates 1 or 0 in this paging indication information; Confirm the confidence level of the indication information of each group, and statistics respectively organizes the ratio of confidence level and group number, the synchronous degree of confirming current down link according to the synchronous degree initial value that is provided with in advance and said ratio; When this spends less than a preset value synchronously, confirm downlink synchronization lose.Utilize the present invention can solve under holding state, user terminal be owing to can't understand the synchronous regime of down link, thereby causes the problem that can't recover normal standby as early as possible owing to can't in time carry out the sub-district to search for again.
Description of drawings
Fig. 1 is the realization flow figure of the recognition methods of downlink synchronization lose of the present invention;
Fig. 2 is the flow chart of the embodiment one of the recognition methods of downlink synchronization lose of the present invention;
Fig. 3-Figure 11 is L
PI=2,4,8 o'clock, the testing result sketch map under AWGN (additive white Gaussian noise), Case1, Case3 channel circumstance;
Figure 12 is the flow chart of the embodiment two of the recognition methods of downlink synchronization lose of the present invention;
Figure 13 is the structural representation of the embodiment one of the recognition device of downlink synchronization lose of the present invention;
Figure 14 confirms the structural representation of unit for the synchronous degree of the embodiment two of the recognition device of downlink synchronization lose of the present invention;
Figure 15 confirms the structural representation of unit for the synchronous degree of the embodiment three of the recognition device of downlink synchronization lose of the present invention;
Figure 16 confirms the structural representation of unit for the synchronous degree of the embodiment four of the recognition device of downlink synchronization lose of the present invention;
Figure 17 confirms the structural representation of unit for the synchronous degree of the embodiment five of the recognition device of downlink synchronization lose of the present invention;
Figure 18 is the structural representation of user terminal of the present invention;
Figure 19 confirms the structural representation of unit for the synchronous degree of the embodiment two of user terminal of the present invention;
Figure 20 confirms the structural representation of unit for the synchronous degree of the embodiment three of user terminal of the present invention;
Figure 21 confirms the structural representation of unit for the synchronous degree of the embodiment four of user terminal of the present invention;
Figure 22 confirms the structural representation of unit for the synchronous degree of the embodiment five of user terminal of the present invention.
Embodiment
User terminal has two basic operator schemes: idle pulley and connection mode.
Idle pulley is a kind of user terminal mode of operation in the mobile wide-band wire-less accessing system; Under this mode of operation; User terminal is adopting DRX (Discontinuous Reception; Discontinuous reception) mode is monitored Page Indication Channel, is carrying the paging indication information of all user terminals of this sub-district, user terminal place on this Page Indication Channel, and paging indication information can tell whether user terminal wants paging receiving message.
Generally speaking, system is divided into N according to paging indication cycle, (International Mobile SubscriberIdentity, international mobile subscriber identification code) and paging indication cycle with all resident users' of sub-district paging indication information
PIGroup, each is organized by L
PIIndividual Paging Indicator is formed, and in wherein any one group, if there is paging information, the value that is about to all Paging Indicators of this group all is set to 1, otherwise, all be set to 0.
Under the common-frequency network environment; The signal overlap overlay area is disturbed bigger; Under this environment, even the physical layer descending chain circuit synchronization loss, the received signal code territory performance number of the Primary Common Control Physical Channel of the Serving cell that physical layer records generally can be higher than minimum resident thresholding.In this case; User terminal not only can't carry out normal business; And this cell measurement that physical layer is carried out, nearby region measurement value are more at random, can't carry out normal district reselecting and cell selecting basically, and under Idle (free time) state RRC (Radio Resource Control; Radio Resource control) can be because SIB (System InformationBlock, system information block) monitors failure triggering cell search routine again.In addition, under the Idle state, MIB (Master Information Block; The control information piece) update cycle also is a hour level; So whether user terminal can't in time be understood down link and be in and lose synchronous state, causes losing under the synchronous situation, user terminal can't obtain correct paging indication information; Web search can't be carried out again, normal standby can't be recovered as early as possible.And, not lose synchronously owing to discover, the monitoring of public information still can be carried out as usual in the terminal, operations such as nearby region measurement, power consumption is bigger.
In order to solve the technical problem that prior art exists, the invention provides a kind of recognition methods, device and a kind of user terminal of downlink synchronization lose.
Basic thought of the present invention is: according to complete 1 or complete 0 characteristic of the paging indication information value of transmitting terminal; Receive this paging indication information; Add up in the value of each Paging Indicator in this paging indication information 1 or 0 proportion that accounts for; According to this proportion confirm down link when the preamble degree, and judge whether synchronization loss of down link according to degree synchronously.
Please refer to Fig. 1, be the realization flow figure of the recognition methods of downlink synchronization lose of the present invention.
This flow process may further comprise the steps:
Step S101: obtain the paging indication information on the Page Indication Channel.
Step S102: add up in the value of each Paging Indicator in this paging indication information 1 or 0 proportion that accounts for, confirm the synchronous degree of down link according to this proportion.
Step S103: when this synchronous degree is preset thresholding less than first, confirm downlink synchronization lose.
Said synchronous degree is to be used for describing the down-going synchronous situation, if when synchronously degree is less than preset thresholding, can think that then the channel quality of down link is relatively poor, and the situation of synchronization loss has probably taken place.
In order to make those skilled in the art better understand technical scheme of the present invention, be described in detail through several specific embodiments below.
Fig. 2 shows the flow chart of embodiment one of the recognition methods of downlink synchronization lose of the present invention.
This flow process specifically may further comprise the steps:
Step S201: user terminal regularly obtains paging indication information.
At transmitting terminal, paging indication information has been divided into N
PIGroup, each is organized all by L
PIIndividual Paging Indicator is formed.
Step S202: with the group is unit, judges the L of each group
PIWhether 1 proportion surpasses the second preset thresholding or is lower than the 3rd preset thresholding in the individual Paging Indicator, if get into step S203; Otherwise, get into step S204.
At this, the said second preset thresholding is that 65%, the three preset thresholding is 35%.
Step S203: the PI that will organize is judged to be " credible ", and confidence level (RC) increases by 1, gets into step S205.
Step S204: the PI that will organize is judged to be " insincere ", and (RC) is constant for confidence level, gets into step S205.
Step S205: statistics N
PIThe PI of group, and calculate confidence level and N
PIRatio, judge that whether this ratio surpass the 4th preset thresholding, if get into step S206; Otherwise, get into step S207.
The 4th preset thresholding equals 85%, and can adjust as required.
Step S206: on existing downlink synchronization degree basis, increase by first and spend synchronously, get into step S208.
The said first synchronous degree is 1 generally speaking, and can do corresponding adjustment as required.
Step S207: on existing downlink synchronization degree basis, deduct second and spend synchronously, get into step S210.
Said second spends ratio first synchronously, and degree is big synchronously, for example can be made as 4.
Step S208: judge whether current downlink synchronization degree surpasses coincidence counter (DSC) initial value that is provided with in advance, if get into step S209; Otherwise, get into step S210.
Be that on the basis of coincidence counter (DSC) initial value that is provided with in advance degree increase synchronously first is degree synchronously, if the DSC value surpasses initial value, then remains initial value.
Said coincidence counter initial value is provided with according to discontinuous receiving cycle length (DRX cycle length) coefficient.
Discontinuous receiving cycle length should be MAX (2k, PBP) frame are promptly got maximum at 2k, PBP between the two, wherein, K be 3,4,5,6,7,8, a certain integer among the 9}, PBP is paging block periodicity (Paging Block Periodicity).
In order to guarantee that the terminal can be basic identical in the capture time under the different DRX cycle situation, can be set to 90/K by the coincidence counter initial value, and the result is rounded downwards, for example during K=4, said coincidence counter initial value equals 22.
Step S209: the setting of downlink synchronization degree is equaled the DSC initial value, finish.
Step S210: when the synchronous degree of down link is preset thresholding less than first, confirm down link generation synchronization loss, finish.
The said first preset thresholding is 0 generally speaking.
Need to prove that the said first synchronous degree and second degree synchronously is provided with according to user's request in advance, under the situation of synchronization loss; Can identify as early as possible; Second synchronous the spending than the first synchronous degree greatly is set, and for example the first synchronous degree is set to 1, the second synchronous degree and is set to 4.
The embodiment of the invention has made full use of transmitting terminal paging indication information has been divided into groups; And each class symbol is complete 1 or complete 0 characteristic; Calculate 1 or 0 shared proportion in the paging indication information obtain in user terminal one side; Confirm the confidence level of each group according to this proportion, and calculate the ratio of the sum of respectively organizing confidence level and grouping, confirm degree synchronously according to this ratio and predetermined coincidence counter initial value; When this when synchronously degree is less than preset thresholding, just can confirm down link generation synchronization loss.
After confirming downlink synchronization lose, user terminal promptly sends step-out and indicates to high level, asks Cell searching immediately, to set up synchronously with the base station again.
The embodiment of the invention is described according to the definite degree synchronously of the confidence level of each group through several test result figure below, and is judged whether to take place the reasonability of downlink synchronization lose according to synchronous degree.
Fig. 3 to Figure 11 shows L
PI=2,4,8 o'clock, the detection case under AWGN (additive white Gaussian noise), Case1, Case3 channel circumstance.
Wherein, under the situation of lines 10 expression downlink synchronization loses, effective N
PIThe distribution situation of number (just PI is the group number of " credible "), under the situation of lines 20 and 30 difference downlink synchronization, effective N
PIThe distribution situation of number.
Can find out, under the situation of downlink synchronization lose, effective N
PINumber accounts for about 50% of sum, and under the situation of downlink synchronization, effective N
PINumber accounts for about 90% of sum.So, confirm degree synchronously according to the confidence level of each group, and to judge whether to take place downlink synchronization lose according to synchronous degree be rational.
Figure 12 shows the flow chart of embodiment two of the recognition methods of downlink synchronization lose of the present invention.
When user terminal is monitored Page Indication Channel; Also can monitor other common signal channels simultaneously, said common signal channel comprises BCH (Broadcast Channel, broadcast channel), BCCH (Broadcast Control Channel; BCCH) or PCH (Paging Channel; PCH) etc., because these channels all comprise the CRC sign indicating number, the identification process of downlink synchronization lose is by realizing with step:
Step S301: user terminal regularly obtains paging indication information.
Step S302: with the group is unit, judges the L of each group
PIWhether 1 proportion surpasses the second preset thresholding or is lower than the 3rd preset thresholding in the individual Paging Indicator, if get into step S303; Otherwise, get into step S304.
At this, the said second preset thresholding is that 65%, the three preset thresholding is 35%.
Step S303: the PI that will organize is judged to be " credible ", and confidence level (RC) increases by 1, gets into step S305.
Step S304: the PI that will organize is judged to be " insincere ", and (RC) is constant for confidence level, gets into step S305.
Step S305: statistics N
PIThe PI of group, and calculate confidence level and N
PIRatio, judge that whether this ratio surpass the 4th preset thresholding, if get into step S306; Otherwise, get into step S307.
Step S306: on existing downlink synchronization degree basis, increase by first and spend synchronously, get into step S308.
The first synchronous degree is 1.
Step S307: on existing downlink synchronization degree basis, deduct second and spend synchronously, get into step S308.
Said second spends ratio first synchronously, and degree is big synchronously, for example can be made as 4.
Step S308: whether the CRC decoding of judging other common signal channels of monitoring is correct, if get into step S309; Otherwise, get into step S310.
Step S309: existing downlink synchronization degree adds that the 3rd spends synchronously, gets into step S311.
The 3rd synchronous degree can equal first and spend synchronously.
Step S310: existing downlink synchronization degree deducts the 4th and spends synchronously, gets into step S313.
The 4th synchronous degree can equal second and spend synchronously.
Step S311: judge whether current downlink synchronization degree surpasses coincidence counter (DSC) initial value that is provided with in advance, if get into step S312; Otherwise, get into step S313.
Step S312: the setting of downlink synchronization degree is equaled the DSC initial value, get into step S313.
Step S313: when the synchronous degree of down link is preset thresholding less than first, confirm down link generation synchronization loss.
Need to prove that the said the 3rd synchronous degree and the 4th synchronous degree are provided with according to user's request equally in advance, under the situation of synchronization loss; Can identify as early as possible; The 4th synchronous spending than the 3rd synchronous degree greatly is set, and for example the 3rd synchronous degree is set to 1, the four synchronous degree and is set to 4.
The foregoing description has taken into full account the terminal when monitoring Page Indication Channel; Monitor the situation of other common signal channels; Under judging idle pulley, the spending synchronously of down link the time, the CRC decode results of other common signal channels is comprehensively judged, improved the accuracy of judging.
The present invention also discloses a kind of recognition device simultaneously, please refer to Figure 13, is the structural representation of the embodiment one of the recognition device of downlink synchronization lose of the present invention.
This device comprises acquiring unit 100, degree is confirmed unit 200 and judging unit 300 synchronously.
Introduce the operation principle and the course of work of this device below:
Said acquiring unit 100 regularly obtains the paging indication information on the Page Indication Channel; Said synchronous degree is confirmed in the value of each Paging Indicator in unit 200 these paging indication informations of statistics 1 or 0 proportion that accounts for, confirms the synchronous degree of down link according to this proportion; Said judging unit 300 judges according to said synchronous degree whether down link synchronization loss takes place.
Said synchronous degree is to be used for describing the down-going synchronous situation, if when synchronously degree is less than preset thresholding, can think that then the channel quality of down link is relatively poor, and the situation of synchronization loss has probably taken place.
Please refer to Figure 14, confirm the structural representation of unit 200 for the synchronous degree of the embodiment two of the recognition device of downlink synchronization lose of the present invention.
Said synchronous degree confirms that unit 200 can confirm that unit 211, first confirms that unit 212, second confirms that unit 213 forms by confidence level.
Degree confirms that the course of work of unit 200 is synchronously:
The paging indication information that obtains according to acquiring unit 100; Said confidence level confirms that unit 211 is the proportion that unit statistics 1 or 0 accounts for the value of all Paging Indicators in the group with the group, when this proportion surpasses the second preset thresholding or be lower than the 3rd preset thresholding, confirms respectively to organize paging indication (PI) for credible; Confidence level (RC) increases by 1; Otherwise, confirm respectively to organize paging indication (PI) for insincere, (RC) is constant for confidence level.First confirms that unit 212 calculates the confidence level of all groups and the ratio of group number; When this ratio is preset thresholding above the 4th, on the basis of existing downlink synchronization degree, increase by first and spend synchronously; The value of this first synchronous degree is 1 generally speaking; When this ratio is lower than the said the 4th preset thresholding, on the basis of existing downlink synchronization degree, deduct second degree synchronously; Said second confirms that unit 213 is with the downlink synchronization degree and first spend synchronously and or the poor synchronous degree of confirming as current down link.
Please refer to Figure 15; On the basis of the foregoing description; The synchronous degree of this device confirms that unit further comprises that further the 5th confirms unit 214; Be used to judge whether the value of current downlink synchronization degree surpasses predefined synchronous degree initial value, if then initial value should be spent synchronously and be set to current downlink synchronization degree; Otherwise, do not move.
When user terminal is monitored Page Indication Channel, also can monitor simultaneously other common signal channels, said common signal channel comprises BCH (Broadcast Channel; Broadcast channel), BCCH (Broadcast Control Channel; BCCH) or PCH (Paging Channel, PCH) etc., because these channels all comprise the CRC sign indicating number; So can carry out verification to the CRC decode results, and synchronous degree adjusted according to check results.
The synchronous degree of embodiment four that Figure 16 shows the recognition device of downlink synchronization lose of the present invention is confirmed the structural representation of unit.
Synchronous degree confirms that unit 200 comprises: confidence level is confirmed 211, first definite unit 212, unit, verification unit the 215, the 3rd definite unit 216 and the 4th definite unit 217.
Degree confirms that the course of work of unit 200 is synchronously:
The paging indication information that obtains according to acquiring unit 100; Said confidence level confirms that unit 211 is the proportion that unit statistics 1 or 0 accounts for the value of all Paging Indicators in the group with the group, when this proportion surpasses the second preset thresholding or be lower than the 3rd preset thresholding, confirms respectively to organize paging indication (PI) for credible; Confidence level (RC) increases by 1; Otherwise, confirm respectively to organize paging indication (PI) for insincere, (RC) is constant for confidence level.First definite unit 212 calculates the confidence level and the ratio of organizing number of all groups, when this ratio is preset thresholding above the 4th, on the basis of existing downlink synchronization degree, increases by first and spends synchronously, and this first preset value is 1 generally speaking; When this ratio is lower than the said the 4th preset thresholding, on the basis of existing downlink synchronization degree, deduct second degree synchronously.Verification unit 215 is carried out verification to the decode results of other common signal channel CRCs, and the 3rd confirms unit 216 judges whether the check results of verification unit correct, if, increase the 3rd synchronously degree (be 1 generally speaking, otherwise, deduct the 4th and spend synchronously.The 4th definite unit 217 confirms that with first the result of unit and second definite unit confirms as the synchronous degree of down link.
Please refer to Figure 17; On the basis of the foregoing description; The synchronous degree of this device confirms that unit further comprises that further the 5th confirms unit 214; Be used to judge whether the value of current downlink synchronization degree surpasses predefined synchronous degree initial value, if then initial value should be spent synchronously and be set to current downlink synchronization degree; Otherwise, do not move.
Among above-mentioned all embodiment said first preset thresholding, the second preset thresholding, the 3rd preset thresholding or the 4th preset thresholding and can adjust as required; At this first preset thresholding can be set is 0; The second preset thresholding is 65%; The said the 3rd preset thresholding is 35%, and the said the 4th preset thresholding is 85%.
Said predefined synchronous degree initial value is provided with according to discontinuous receiving cycle length (DRX cyclelength) coefficient.Discontinuous receiving cycle length should be MAX (2k, PBP) frame are promptly got maximum at 2k, PBP between the two, wherein, K be 3,4,5,6,7,8, a certain integer among the 9}, PBP is paging block periodicity (Paging Block Periodicity).In order to guarantee that the terminal can be basic identical in the capture time under the different DRX cycle situation, can be set to 90/K by the coincidence counter initial value, and the result is rounded downwards, for example during K=4, said coincidence counter initial value equals 22.
Said first synchronously degree, second synchronously degree, the 3rd synchronously degree and the 4th synchronously degree be provided with in advance according to user's request; For under the situation of synchronization loss; Can identify as early as possible; The 4th synchronous spending than the 3rd synchronous degree greatly is set, and for example the 3rd synchronous degree is set to 1, the four synchronous degree and is set to 4.And the value that the value of the said second synchronous degree or the 4th is spent synchronously is relevant with the discontinuous receiving cycle length factor.
The present invention also discloses a kind of user terminal simultaneously, please refer to Figure 18, is the structural representation of a kind of user terminal of the present invention.
This terminal also comprises recognition device 1 on the basis of existing structure, this recognition device 1 comprises acquiring unit 100, degree is confirmed unit 200 and judging unit 300 synchronously.
The operation principle and the course of work of this recognition device have detailed description at preceding text, repeat no more at this.
The synchronous degree that Figure 19 illustrates the embodiment two of user terminal of the present invention is confirmed the structural representation of unit.
Said synchronous degree confirms that unit 200 can confirm that unit 211, first confirms that unit 212, second confirms that unit 213 forms by confidence level.
Degree confirms that the course of work and the operation principle of unit 200 have detailed description at preceding text, repeat no more at this synchronously.
The synchronous degree that Figure 20 shows the embodiment three of user terminal of the present invention is confirmed the structural representation of unit.On the basis of the foregoing description; The synchronous degree of this device confirms that unit further comprises that further the 5th confirms unit 214; Be used to judge whether the value of current downlink synchronization degree surpasses predefined synchronous degree initial value; If then should spend initial value synchronously and be set to current downlink synchronization degree; Otherwise, do not move.
When user terminal is monitored Page Indication Channel, also can monitor simultaneously other common signal channels, said common signal channel comprises BCH (Broadcast Channel; Broadcast channel), BCCH (Broadcast Control Channel; BCCH) or PCH (Paging Channel, PCH) etc., because these channels all comprise the CRC sign indicating number; So can carry out verification to the CRC decode results, and synchronous degree adjusted according to check results.The structure of the definite unit of degree can also be shown in figure 21 synchronously based on this:
Synchronous degree confirms that unit 200 comprises: confidence level is confirmed 211, first definite unit 212, unit, verification unit the 215, the 3rd definite unit 216 and the 4th definite unit 217.
Degree confirms that the course of work and the operation principle of unit 200 have detailed description at preceding text, repeat no more at this equally synchronously.
The synchronous degree that Figure 22 shows the embodiment five of user terminal of the present invention is confirmed the structural representation of unit.On the basis of the foregoing description; The synchronous degree of this device confirms that unit further comprises that further the 5th confirms unit 214; Be used to judge whether the value of current downlink synchronization degree surpasses predefined synchronous degree initial value; If then should spend initial value synchronously and be set to current downlink synchronization degree; Otherwise, do not move.
The embodiment of the invention is according to obtaining the paging indication information on the Page Indication Channel; And, confirm whether PI of each group is credible according to 1 or 0 proportion that accounts in the paging indication information, corresponding confidence level is set; And statistics is respectively organized confidence level and total ratio of organizing number; According to this ratio and the synchronous degree initial value that is provided with in advance confirm the synchronous degree of down link, when this when degree is lower than preset thresholding synchronously, confirm the down link generation synchronization loss of user terminal and base station.
More than disclosedly be merely preferred implementation of the present invention; But the present invention is not limited thereto; Any those skilled in the art can think do not have a creationary variation, and, all should drop in protection scope of the present invention not breaking away from some improvement and the retouching of being done under the principle of the invention prerequisite.
Claims (14)
1. the recognition methods of a downlink synchronization lose is characterized in that, comprising:
The paging receiving indication information is added up in the value of each Paging Indicator in this paging indication information 1 or 0 proportion that accounts for, confirms the synchronous degree of current down link according to this proportion;
When this synchronous degree is preset thresholding less than first, confirm downlink synchronization lose.
2. the method for claim 1 is characterized in that, confirms the synchronous degree of current down link according to following steps:
With the group is unit, and statistics 1 or 0 accounts for the proportion of value of all Paging Indicators in the group, and confirms respectively to organize the confidence level of paging indication according to the proportion that statistics 1 or 0 accounts for the value of all Paging Indicators in the group;
Calculate the confidence level and the ratio of organizing number of all groups, when said ratio is preset thresholding above the 4th, on the basis of existing downlink synchronization degree, increase by first and spend synchronously; Otherwise, on the basis of existing downlink synchronization degree, deduct second and spend synchronously; The said first synchronous degree and second degree synchronously is provided with according to user's request in advance;
With existing downlink synchronization degree with first synchronously degree with, or existing downlink synchronization degree and the second synchronous difference of spending are confirmed as the synchronous degree of current down link.
3. method as claimed in claim 2 is characterized in that, when with downlink synchronization degree and first synchronously degree and when surpassing predefined synchronous degree initial value, should spend initial value synchronously and be set to current downlink synchronization degree.
4. the method for claim 1 is characterized in that, confirms the synchronous degree of current down link according to following steps:
With the group is unit, and statistics 1 or 0 accounts for the proportion of value of all Paging Indicators in the group, and confirms respectively to organize the confidence level of paging indication according to the proportion that statistics 1 or 0 accounts for the value of all Paging Indicators in the group;
Calculate the confidence level of all groups and the ratio of group number, when said ratio was preset thresholding above the 4th, increase by first is degree synchronously; Otherwise, deduct second and spend synchronously; The said first synchronous degree and second degree synchronously is provided with according to user's request in advance;
Other common signal channels are carried out CRC,, then increase the 3rd and spend synchronously if the result is correct; Otherwise, deduct the 4th and spend synchronously; The said the 3rd synchronous degree and the 4th degree synchronously is provided with according to user's request in advance;
The aforementioned calculation result is confirmed as the synchronous degree of current down link.
5. like any described method of claim 2-4, it is characterized in that, confirm respectively to organize the confidence level of paging indication according to following steps:
Calculate in the value of all Paging Indicators in said group 1 proportion, when this proportion surpasses the second preset thresholding or is lower than the 3rd preset thresholding, confirm that the paging of this group is designated as " credible ", confidence level increases by 1.
6. method as claimed in claim 3 is characterized in that, said synchronous degree initial value is provided with according to the discontinuous receiving cycle length factor, and this spends initial value synchronously and the discontinuous receiving cycle length factor is inversely proportional to.
7. the recognition device of a downlink synchronization lose is characterized in that, comprising:
Acquiring unit is used for regularly obtaining the paging indication information on the Page Indication Channel;
Synchronously degree is confirmed the unit, is used for adding up in the value of each Paging Indicator of this paging indication information 1 or 0 proportion that accounts for, confirms the synchronous degree of down link according to this proportion;
Judging unit is used for judging according to said synchronous degree whether down link synchronization loss takes place.
8. recognition device as claimed in claim 7 is characterized in that, degree confirms that the unit comprises synchronously:
Confidence level is confirmed the unit, is the proportion that unit statistics 1 or 0 accounts for the value of all Paging Indicators in the group with the group, and confirms respectively to organize the confidence level of paging indication according to the proportion that statistics 1 or 0 accounts for the value of all Paging Indicators in the group;
First confirms the unit, calculates the confidence level and the ratio of organizing number of all groups, when said ratio is preset thresholding above the 4th, on the basis of existing downlink synchronization degree, increases by first and spends synchronously; Otherwise, on the basis of existing downlink synchronization degree, deduct second and spend synchronously;
Second confirms the unit, with existing downlink synchronization degree with first synchronously degree with, or existing downlink synchronization degree and the second synchronous difference of spending are confirmed as the synchronous degree of current down link;
The said first synchronous degree and second degree synchronously is provided with according to user's request in advance.
9. recognition device as claimed in claim 7 is characterized in that, degree confirms that the unit comprises synchronously:
Confidence level is confirmed the unit, is the proportion that unit statistics 1 or 0 accounts for the value of all Paging Indicators in the group with the group, and confirms respectively to organize the confidence level of paging indication according to this proportion;
First confirms the unit, calculates the confidence level and the proportion of organizing number of all groups, when said proportion is preset thresholding above second, on the basis of existing downlink synchronization degree, increases by first and spends synchronously; Otherwise, on the basis of existing downlink synchronization degree, deduct second and spend synchronously;
Verification unit is carried out verification to the decode results of other common signal channel CRCs;
The 3rd confirms the unit, judges whether the check results of verification unit is correct, if, increase the 3rd and spend synchronously, otherwise, deduct the 4th and spend synchronously;
The 4th confirms the unit, confirms that with first the result of unit and the 3rd definite unit confirms as the synchronous degree of down link;
Said first synchronously degree, second synchronously degree, the 3rd synchronously degree and the 4th synchronously degree be provided with in advance according to user's request.
10. like claim 8 or 9 described devices, it is characterized in that said synchronous degree initial value is provided with according to the discontinuous receiving cycle length factor, this spends initial value synchronously and the discontinuous receiving cycle length factor is inversely proportional to.
11. a user terminal is characterized in that, comprises by acquiring unit, spends the recognition device of confirming that unit and judging unit are formed synchronously, wherein,
Said acquiring unit is used for regularly obtaining the paging indication information on the Page Indication Channel;
Said synchronous degree confirms that the unit is used for adding up in the value of each Paging Indicator of this paging indication information 1 or 0 proportion that accounts for, confirms the synchronous degree of down link according to this proportion;
Said judging unit is used for judging according to said synchronous degree whether down link synchronization loss takes place.
12. terminal as claimed in claim 11 is characterized in that, degree confirms that the unit comprises synchronously:
Confidence level is confirmed the unit, is the proportion that unit statistics 1 or 0 accounts for the value of all Paging Indicators in the group with the group, and confirms respectively to organize the confidence level of paging indication according to the proportion that statistics 1 or 0 accounts for the value of all Paging Indicators in the group;
First confirms the unit, calculates the confidence level and the ratio of organizing number of all groups, when said ratio is preset thresholding above second, on the basis of existing downlink synchronization degree, increases by first and spends synchronously; Otherwise, on the basis of existing downlink synchronization degree, deduct second and spend synchronously;
Second confirms the unit, with existing downlink synchronization degree with first synchronously degree with, or existing downlink synchronization degree and the second synchronous difference of spending are confirmed as the synchronous degree of current down link;
The said first synchronous degree and second degree synchronously is provided with according to user's request in advance.
13. terminal as claimed in claim 11 is characterized in that, degree confirms that the unit comprises synchronously:
Confidence level is confirmed the unit, is the proportion that unit statistics 1 or 0 accounts for the value of all Paging Indicators in the group with the group, and confirms respectively to organize the confidence level of paging indication according to this proportion;
First confirms the unit, calculates the confidence level and the proportion of organizing number of all groups, when said proportion is preset thresholding above second, on the basis of existing downlink synchronization degree, increases by first and spends synchronously; Otherwise, on the basis of existing downlink synchronization degree, deduct second and spend synchronously;
Verification unit is carried out verification to the decode results of other common signal channel CRCs;
The 3rd confirms the unit, judges whether the check results of verification unit is correct, if, increase the 3rd and spend synchronously, otherwise, deduct the 4th and spend synchronously;
The 4th confirms the unit, confirms that with first the result of unit and the 3rd definite unit confirms as the synchronous degree of down link;
Said first synchronously degree, second synchronously degree, the 3rd synchronously degree and the 4th synchronously degree be provided with in advance according to user's request.
14., it is characterized in that said synchronous degree initial value is provided with according to the discontinuous receiving cycle length factor like claim 12 or 13 described terminals, this spends initial value synchronously and the discontinuous receiving cycle length factor is inversely proportional to.
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Non-Patent Citations (3)
| Title |
|---|
| Protocol Specification (Release 7).《3GPP TS 25.331》.2007,第v7.4.0卷(第(2007-03)期),全文. * |
| ProtocolSpecification(Release7).《3GPPTS25.331》.2007 第v7.4.0卷(第(2007-03)期) |
| Technical Specification Group.Radio Resource Control(RRC) * |
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