CN101043670A - Resynchronization method of mobile terminal under stand-by state woke up from sleep mode - Google Patents
Resynchronization method of mobile terminal under stand-by state woke up from sleep mode Download PDFInfo
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- CN101043670A CN101043670A CNA2006100654839A CN200610065483A CN101043670A CN 101043670 A CN101043670 A CN 101043670A CN A2006100654839 A CNA2006100654839 A CN A2006100654839A CN 200610065483 A CN200610065483 A CN 200610065483A CN 101043670 A CN101043670 A CN 101043670A
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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
Abstract
The provided re-synchronizing method for mobile terminal awakened from sleeping mode comprises: deciding the current quality of receiving calling; if the quality is low, adding the re-synchronizing time for awakening the mobile terminal from sleeping mode; or else, reducing the re-synchronizing time for next time. This invention can achieve balance between receiving performance and reducing power consumption.
Description
Technical field
This present invention relates to the mobile communication technology field, is meant the resynchronization method after portable terminal under the holding state is waken up from sleep pattern especially.
Background technology
Portable terminal all has idle function at present, comprises two kinds of patterns when portable terminal is in holding state: monitor page-mode and sleep pattern.Under holding state, portable terminal need keep synchronously with base station (as NodeB), its implementation is: portable terminal is waken up to change over to from sleep pattern and is monitored the paging information that page-mode reception base station issues at regular intervals, changes sleep pattern when not needing paging receiving information again over to.
Under sleep pattern, the high-frequency work clock of portable terminal is closed, and peripheral Analog Baseband device and radio-frequency devices are also closed, and only uses low-frequency clock to carry out work, therefore can reach the purpose of electricity saving of mobile terminal.When this terminal needs paging receiving, just be waken up from sleep pattern, recover the monitoring page-mode under the holding state.
Because the precision problem of low-frequency clock, the real-time change of wireless channel in addition, portable terminal is waken up and changes over to when monitoring page-mode, and it is no longer accurate synchronously, must need to consume the regular hour to recover synchronously correctly to receive the paging that the base station issues.Present design is to be provided with to carry out synchronous recovery fixing heavy lock in time.Specifically, the portable terminal under the holding state precomputes when to enter and monitors page-mode next time before entering sleep pattern.Deduct on the benchmark device stabilization time and predetermined heavy lock in time at this moment, promptly calculate terminal and wake up to the synchronous time point of beginning, begin to wake up when arriving this time point from sleep pattern.Sequential chart referring to the sleep-awake of portable terminal shown in Figure 1 is described in detail:
Portable terminal is handled paging for monitoring page-mode constantly at radio frames n and radio frames n+1.If can enter sleep pattern according to result, then be ready at all times sleep at radio frames n+2, and calculate when to enter and monitor page-mode next time, suppose that result of calculation is radio frames m+7 (result for each Time Calculation that enters listen mode next time from preparing to sleep is not necessarily identical) constantly.Deduct on the benchmark device stabilization time and fixing heavy lock in time at this moment, obtain portable terminal and wake up to the synchronous real time point of beginning, be assumed to be radio frames m+4 constantly from sleep pattern.From radio frames n+3 constantly, this terminal enters sleep pattern, and this moment, the high-frequency work clock was closed, and peripheral Analog Baseband device and radio-frequency devices are also closed, and only use low-frequency clock.During the moment, the high-frequency work clock is opened once more to radio frames m+4, and peripheral Analog Baseband device and radio-frequency devices are also opened.By the time after device was stablized, at m+5 constantly, portable terminal began the heavy synchronizing process of set time, begins to handle paging constantly at m+7.For this mode,, promptly whether recovered all need change processing over to synchronously to paging at m+7 moment portable terminal no matter after finishing heavy lock in time.
Situation above the analysis, if the current length of one's sleep is shorter, perhaps wireless channel changes not quite, promptly variation is not obvious synchronously, recovers synchronous mode according to this set set time and can make portable terminal recovery in time synchronously, correctly paging receiving.But relative shortening the length of one's sleep, heavy lock in time proportion is increased, and then has increased the stand-by power consumption of portable terminal, the power supply of waste portable terminal makes the stand-by time of portable terminal shorten.
If the current length of one's sleep is longer, perhaps wireless channel alters a great deal, in the set time that is provided with, very likely portable terminal can't in time recover synchronously, and this will influence subsequently reception and processing to paging, and might cause losing the situation of paging, influence the synchronous of portable terminal and base station, thereby may cause having reduced call successful rate and the speed that continues because portable terminal and base station asynchronous can't accurately send to this terminal with signal when calling out this portable terminal.
Summary of the invention
By said method as can be seen, the portable terminal that the invention provides under the holding state is waken up the heavy synchronous method in back from sleep pattern, to reach correct paging receiving of portable terminal holding state under and the balance between the reduction power consumption to greatest extent.
Resynchronization method after portable terminal under a kind of holding state provided by the invention is waken up from sleep pattern comprises: according to the accepting state quality of the current paging receiving of portable terminal, adjust the heavy lock in time after portable terminal is waken up from sleep pattern.
Wherein, the step of the heavy lock in time after described accepting state quality adjustment portable terminal according to the current paging receiving of portable terminal is waken up from sleep pattern comprises:
The accepting state quality of A, the current paging receiving of judgement portable terminal;
B1, when described portable terminal accepting state quality when low, increase the heavy lock in time after next time being waken up from sleep pattern.
Wherein, the step of the heavy lock in time after described accepting state quality adjustment portable terminal according to the current paging receiving of portable terminal is waken up from sleep pattern comprises:
The accepting state quality of A, the current paging receiving of judgement portable terminal;
B2, when described portable terminal accepting state quality when being high, reduce the heavy lock in time after next time being waken up from sleep pattern.
Wherein, the accepting state quality of the current paging receiving of the described judgement portable terminal of steps A is that high or low step comprises: the number of times S1 that in the time of setting the signal to noise ratio of paging receiving is lower than the first decision threshold θ 1 of setting adds up; If current statistics surpasses the first statistics thresholding N1 that is provided with, then portable terminal accepting state quality is low; The number of times S2 that in the time of setting the signal to noise ratio of paging receiving is higher than the second decision threshold θ 2 of setting adds up, if current statistics surpasses the second statistics thresholding N2 that is provided with, then portable terminal accepting state quality be a height; Wherein, the described first decision threshold θ 1 is less than the second decision threshold θ 2.
Wherein, after heavy lock in time after described adjustment portable terminal is waken up from sleep pattern, further comprise: in the startup setting-up time next time the paging receiving signal to noise ratio is lower than 1 number S1 of the first decision threshold θ and the statistics again that is higher than 2 number S2 of the second decision threshold θ.
Wherein, the accepting state quality of the current paging receiving of the described judgement portable terminal of steps A is that high or low step comprises: if the signal to noise ratio of current paging receiving is lower than the first decision threshold θ 1 of setting, then portable terminal accepting state quality is low; If the signal to noise ratio of current paging receiving is higher than the second decision threshold θ 2 of setting, then portable terminal accepting state quality is high; Wherein, the described first decision threshold θ 1 is less than the second decision threshold θ 2.
Wherein, the accepting state quality of the current paging receiving of the described judgement portable terminal of steps A is that high or low step comprises: the errors number S ' 1 to paging receiving in the time of setting adds up, if current statistics is greater than the first thresholding N ' 1 that is provided with, then portable terminal accepting state quality is low; Correct number of times S ' 2 to paging receiving in the time of setting adds up, and greater than the second thresholding N ' 2 that is provided with, then portable terminal accepting state quality is high as if current statistics.
Wherein, after the heavy lock in time after described adjustment portable terminal is waken up from sleep pattern, further comprise: start in the time of next time setting statistics again the errors number S ' 1 and the correct number of times S ' 2 of paging receiving.
Wherein, the accepting state quality of the current paging receiving of the described judgement portable terminal of steps A is that high or low step comprises: if current paging receiving is a mistake, then portable terminal accepting state quality is low; If current paging receiving is correct, then portable terminal accepting state quality is high.
As seen from the above, method provided by the invention can be adjusted heavy lock in time according to the current state of portable terminal, paging signal to noise ratio more or that receive is lower if portable terminal receives wrong paging at present in the unit interval, then increase the heavy lock in time after be waken up from sleep pattern next time, so that it is more accurate synchronously next time, and then make the probability of correct paging receiving increase, reduce the Loss Rate of paging.
On the other hand, if it is higher to receive wrong paging paging signal to noise ratio less or that receive in the unit interval, then reduce the heavy lock in time after be waken up from sleep pattern next time, being increased in the shared time proportion of sleep pattern under the holding state accordingly, thereby reach the purpose that as far as possible reduces mobile terminal power consumption.
Description of drawings
Fig. 1 is the sleep-awake sequential chart of the portable terminal under the prior art holding state.
Fig. 2 is for adopting the sleep-awake sequential chart of the portable terminal under the holding state of the present invention.
Fig. 3 is the flow chart that example is dynamically adjusted heavy lock in time with the signal to noise ratio for the present invention.
Fig. 4 is that example is dynamically adjusted weight flow chart lock in time for the present invention with the paging receiving error rate.
Embodiment
The portable terminal that the invention provides under the holding state is waken up the heavy synchronous processing method in back from sleep pattern, can be according to the residing state of terminal, the self adaptation adjustment is waken up the back length of heavy lock in time from sleep pattern next time, so that the portable terminal under the holding state can recover synchronously accurately with paging receiving, and reduce power consumption under the holding state on this basis as far as possible.
Among the present invention, from monitor page-mode to the stage of monitoring page-mode next time, portable terminal is before carrying out sleep operation, also need to calculate earlier when to change over to and monitor page-mode next time from sleep pattern, deduct device stabilization time and heavy lock in time at this moment on the benchmark, promptly be that portable terminal changes the time point of monitoring page-mode reality over to from sleep pattern, this is identical with background technology.Different is, the heavy lock in time among the present invention be carry out according to SOT state of termination self-adjusting, rather than changeless value.Be example with the amount of error of the signal to noise ratio of paging receiving in the unit interval and paging receiving as the reference quantity of terminal current state respectively below, the present invention is described in detail.
At first describe the scheme of adjusting heavy lock in time according to the signal to noise ratio of paging receiving automatically: the number of times that the signal to noise ratio of paging receiving in the unit interval T is lower than the first decision threshold θ 1 of setting is added up, and statistics is made as S1; If till this, if S1 surpasses first a statistics thresholding N1 (the concrete value of N1 can be set according to the performance test of reality) who sets, then making increases heavy lock in time after next time being waken up from sleep pattern time Δ 1; The number of times that the signal to noise ratio of paging receiving in the unit interval T is higher than the second decision threshold θ 2 (θ 2＞θ 1) is added up (statistics is made as S2) simultaneously, if above second a statistics thresholding N2 (the concrete value of N2 can be set according to the performance test of reality) who sets, then making, S2 reduces time Δ 1 the heavy lock in time after next time being waken up from sleep pattern.With reference to the sleep-awake sequential chart shown in the figure 2, for having increased the sequential chart of heavy lock in time according to the portable terminal under the holding state of the present invention's realization.
Specific embodiment is described below:
Suppose in unit interval T (T 〉=1 paging cycle), terminal will receive M PICH (Page Indication Channel paging), and behind each PICH of reception, judge whether to receive corresponding PCH (transmission channel paging), be located in the described unit interval T and received L (L=0 altogether, 1, ..., M) inferior PCH.Because need not distinguish PICH or PCH when specifically judging, the present invention is referred to as paging with PICH, PCH, later on no longer explanation.Referring to Fig. 3, portable terminal of the present invention is waken up the heavy synchronous processing method in back from sleep pattern describes:
Step 301: after receiving current paging, (computational methods for signal to noise ratio are same as the prior art to the signal to noise ratio of the paging of this time reception, for example can adopt the power of first signal calculated, the average power of calculating noise is again compared two values and is signal to noise ratio.The non-emphasis of the present invention of signal-noise ratio computation method is not given unnecessary details this) judge, judge whether described paging signal to noise ratio is lower than the first decision threshold θ 1, and if not, then execution in step 302;
If it is relatively poor to represent that then portable terminal receives the state of current paging signal, and the S1 that is added up is added 1.Then S1 and N1 are compared, if S1＜N1, then execution in step 303; Otherwise (situation of expression S1 〉=N1) then makes increase Δ 1 next heavy lock in time, and execution in step 304.Wherein, Δ 1 can be unit with the subframe, and concrete value can be according to the performance test decision of reality, as making Δ 1=4.
Step 302: whether judge the paging signal to noise ratio greater than the second decision threshold θ 2, if not, the value of paging signal to noise ratio between θ 1 and θ 2 is described then, represent that current to receive paging normal, execution in step 303;
If it is better to represent that then portable terminal receives the state of current paging signal, and the S2 that is added up is added 1, then S2 is compared with N2, if S2＜N2, then execution in step 303; Otherwise (situation of expression S2 〉=N2) then makes deduct Δ 1 next heavy lock in time, and execution in step 304.
Step 303: judge whether current T finishes, if not, then continue to receive next paging, return first step.If the T time finishes execution in step 304.
Step 304: restart the statistics of next T time, comprise with S1 and S2 zero clearing.
From last embodiment as can be seen, the present invention adopts be receive be about to after each paging statistical value S1/S2 with to comparing by thresholding N1/N2, if satisfy threshold condition, when sleep awakening next time, just adjust heavy lock in time.Whenever after carrying out simultaneously once the adjustment of heavy lock in time, then restart the statistics of next T time.Adopt such reason to be, judge whether the statistical value S1/S2 of statistics satisfies thresholding N1/N2 condition if all will wait until the T time at every turn again after finishing, then can appear at the signal to noise ratio number of times that the T time do not finish time statistics and just satisfy threshold condition, but can not in time adjust the situation of heavy lock in time.
Therefore can adjust the heavy lock in time after next time waking up from sleep pattern according to the S1 or the S2 of statistics, promptly adjusts according to the current state of portable terminal receiving paging signal.Special, also can set and make N1=0, in this case, as long as a signal to noise ratio occurs less than thresholding θ 1, then S1 must then can set as long as a signal to noise ratio occurs less than thresholding θ 1 greater than N1, think that then this time paging receiving state is relatively poor, increase heavy synchronous time Δ 1 next time.Also can make N2=0, expression needs only this received signal to noise ratio thresholding greater than θ 2, and then S2 is inevitable greater than N2, can be regarded as long as this paging receiving state is better, then makes and reduces Δ 1 next heavy lock in time.
Wherein, for the value of above-mentioned decision threshold θ 1, the signal to noise ratio that guarantee paging receiving is during less than this thresholding, and it will be no longer reliable that this paging receives.For the value of decision threshold θ 2, the signal to noise ratio that guarantee paging receiving is during greater than this thresholding, and it is reliable that this paging receives.The computational methods of signal to noise ratio, thresholding θ 1 and θ 2 choose with similar to the processing of business datum, can (for example determine according to the performance test of reality, can adopt actual test or Computer Simulation, under the situation of different signal to noise ratios, according to decoding effect decision computational methods or threshold value), non-emphasis of the present invention is not given unnecessary details herein.
Not only can recently represent the current state of portable terminal receiving paging signal or poor, can also represent the current state of portable terminal receiving paging signal or poor with the error rate of receiving paging signal with above-mentioned noise.For using error rate to weigh the adjustment of lock in time, with last example be same principle, sketch referring to Fig. 4:
Errors number to paging receiving in the unit interval T is added up, and statistics is made as S ' 1; Also will add up the correct number of times of paging receiving, statistics is made as S ' 2; If till the current paging of reception, if S ' 1 is greater than the first thresholding N ' 1 that sets (the concrete value of N ' 1 can be set according to the performance test of reality), it is too much that expression receives wrong paging number of times, the current state of portable terminal receiving paging signal is relatively poor, then make increase time Δ ' 1 heavy lock in time of next time, and restart the statistics of next T time S ' 1 and S ' 2;
If till the current paging of reception, if S ' 2 is greater than the second thresholding N ' 2 that sets (the concrete value of N ' 2 can be set according to the performance test of reality), it is abundant that expression receives correct paging number of times, the current state of portable terminal receiving paging signal is better, then make reduce time Δ ' 1 heavy lock in time of next time, and restart the statistics of next T time S ' 1 and S ' 2;
If till the current paging of reception, S ' 1, S ' 2 all do not reach threshold value, and the end as yet of this T time, then receive next paging and continue paging receiving mistake/correct number of times is added up in the current T time; If this T time finishes, then restart the statistics of next T time to S ' 1 and S ' 2.
Same special, can specify N ' 1=N ' 2=0.Expression is as long as current paging receiving mistake then makes next the weight increase time Δ ' 1 lock in time; As long as current paging receiving is correct, then makes and reduce time Δ ' 1 heavy lock in time of next time.
Wherein, whether correct for the PCH reception, can judge according to CRC (cyclic redundancy check (CRC) code) result of PCH.Because transmitting terminal increases the CRC bit outside the data bit that sends, and send with data bit.Receiving terminal receives data bit and CRC bit, uses the data bit that receives to generate local CRC bit.The CRC bit of local CRC bit and reception is compared,, think that then the data bit that receiving terminal receives is exactly the data bit that transmitting terminal sends if consistent.There is mistake otherwise receive.This judges PCH receives whether correct method is a prior art, and non-emphasis of the present invention is so repeat no more.
Whether correctly wherein receive, can judge according to whether the bit of this paging indication of the carrying that receives is consistent for PICH.Because PICH bearing call indication bit uses a plurality of chips to represent a paging indication bit.As, the paging indication bit is 1, transmitting terminal uses 8 all-ones sheets.If what receiving terminal received is 8 all-ones sheets (consider the majority decision situation, can be loosened to 7 complete 1 or 6 complete 1), then think to receive correctly.If receive half 1 half 0 situation, then think the reception mistake.This judges PICH receives whether correct method is a prior art, and non-emphasis of the present invention is so repeat no more.
As seen from the above, the present invention can judge the requirement to ensuing heavy lock in time according to the state of paging receiving.If the situation that paging receiving is made mistakes occurs, it is lower promptly to receive wrong paging paging signal to noise ratio more or that receive, then do not wish next to continue to make mistakes, increase the heavy lock in time after be waken up from sleep pattern next time this moment, to increase the probability of correct paging receiving.Especially, under exceedingly odious situation, adopt the synchronous time of fixedly weight of prior art to return to the monitoring page-mode synchronously, may can't receive paging always.And employing the present invention then can correctly receive paging along with the continuous increase of lock in time.
On the other hand, when the state of portable terminal paging receiving better, promptly receive the lower or signal to noise ratio of error rate when high, then can reduce the heavy lock in time after be waken up from sleep pattern next time, with the shared proportion of corresponding increase sleep pattern under holding state, thereby reach the purpose that reduces power consumption of terminal.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1, the resynchronization method after the portable terminal under a kind of holding state is waken up from sleep pattern is characterized in that, according to the accepting state quality of the current paging receiving of portable terminal, adjusts the heavy lock in time after portable terminal is waken up from sleep pattern.
2, the resynchronization method after portable terminal according to claim 1 is waken up from sleep pattern, it is characterized in that the step that described accepting state quality according to the current paging receiving of portable terminal is adjusted the heavy lock in time after portable terminal is waken up from sleep pattern comprises:
The accepting state quality of A, the current paging receiving of judgement portable terminal;
B1, when described portable terminal accepting state quality when low, increase the heavy lock in time after next time being waken up from sleep pattern.
3, the resynchronization method after portable terminal according to claim 1 is waken up from sleep pattern, it is characterized in that the step that described accepting state quality according to the current paging receiving of portable terminal is adjusted the heavy lock in time after portable terminal is waken up from sleep pattern comprises:
The accepting state quality of A, the current paging receiving of judgement portable terminal;
B2, when described portable terminal accepting state quality when being high, reduce the heavy lock in time after next time being waken up from sleep pattern.
4, the resynchronization method after being waken up from sleep pattern according to claim 2 or 3 described portable terminals is characterized in that the step of the accepting state quality of the current paging receiving of the described judgement portable terminal of steps A comprises:
The number of times S1 that in the time of setting the signal to noise ratio of paging receiving is lower than the first decision threshold θ 1 of setting adds up; If current statistics surpasses the first statistics thresholding N1 that is provided with, then portable terminal accepting state quality is low;
The number of times S2 that in the time of setting the signal to noise ratio of paging receiving is higher than the second decision threshold θ 2 of setting adds up, if current statistics surpasses the second statistics thresholding N2 that is provided with, then portable terminal accepting state quality be a height;
Wherein, the described first decision threshold θ 1 is less than the second decision threshold θ 2.
5, the resynchronization method after portable terminal according to claim 4 is waken up from sleep pattern is characterized in that, after the heavy lock in time after described adjustment portable terminal is waken up from sleep pattern, further comprises:
Start in the setting-up time next time the paging receiving signal to noise ratio is lower than 1 number S1 of the first decision threshold θ and the statistics again that is higher than 2 number S2 of the second decision threshold θ.
6, the resynchronization method after being waken up from sleep pattern according to claim 2 or 3 described portable terminals is characterized in that the step of the accepting state quality of the current paging receiving of the described judgement portable terminal of steps A comprises:
If the signal to noise ratio of current paging receiving is lower than the first decision threshold θ 1 of setting, then portable terminal accepting state quality is low;
If the signal to noise ratio of current paging receiving is higher than the second decision threshold θ 2 of setting, then portable terminal accepting state quality is high;
Wherein, the described first decision threshold θ 1 is less than the second decision threshold θ 2.
7, the resynchronization method after being waken up from sleep pattern according to claim 2 or 3 described portable terminals is characterized in that the step of the accepting state quality of the current paging receiving of the described judgement portable terminal of steps A comprises:
Errors number S ' 1 to paging receiving in the time of setting adds up, and greater than the first thresholding N ' 1 that is provided with, then portable terminal accepting state quality is low as if current statistics;
Correct number of times S ' 2 to paging receiving in the time of setting adds up, and greater than the second thresholding N ' 2 that is provided with, then portable terminal accepting state quality is high as if current statistics.
8, the resynchronization method after portable terminal according to claim 7 is waken up from sleep pattern is characterized in that, after the heavy lock in time after the adjustment portable terminal is waken up from sleep pattern, further comprises:
Start in the time of next time setting statistics again to the errors number S ' 1 and the correct number of times S ' 2 of paging receiving.
9, the resynchronization method after being waken up from sleep pattern according to claim 2 or 3 described portable terminals is characterized in that the step of the accepting state quality of the current paging receiving of the described judgement portable terminal of steps A comprises:
If current paging receiving is a mistake, then portable terminal accepting state quality is low;
If current paging receiving is correct, then portable terminal accepting state quality is high.
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| CN110234122A (en) * | 2018-03-05 | 2019-09-13 | 华为技术有限公司 | Detect the method, apparatus and terminal device of synchronous regime |
| CN110234122B (en) * | 2018-03-05 | 2021-04-09 | 华为技术有限公司 | Method and device for detecting synchronization state and terminal equipment |
| CN109445566A (en) * | 2018-12-15 | 2019-03-08 | 惠州Tcl移动通信有限公司 | OTG economize on electricity processing method, system, storage medium and mobile terminal |
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Address after: 201206 Pudong New Area Mingyue Road, Shanghai, No. 1258 Co-patentee after: Datang Mobile Communication Equipment Co., Ltd. Patentee after: Leadcore Technology Co., Ltd. Co-patentee after: Datang Mobile Communication Equipment Co., Ltd., Shanghai Address before: 200233, 4, 41 building, 333 Chiang Jiang Road, Shanghai Co-patentee before: Datang Mobile Communication Equipment Co., Ltd. Patentee before: Leadcore Technology Co., Ltd. Co-patentee before: Datang Mobile Communication Equipment Co., Ltd., Shanghai |
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Effective date of registration: 20120217 Address after: 201206 Pudong New Area Mingyue Road, Shanghai, No. 1258 Patentee after: Leadcore Technology Co., Ltd. Address before: 201206 Pudong New Area Mingyue Road, Shanghai, No. 1258 Co-patentee before: Datang Mobile Communication Equipment Co., Ltd. Patentee before: Leadcore Technology Co., Ltd. Co-patentee before: Datang Mobile Communication Equipment Co., Ltd., Shanghai |