CN101771461A - Method, device and system for keeping signal synchronization in TD-SCDMA system - Google Patents
Method, device and system for keeping signal synchronization in TD-SCDMA system Download PDFInfo
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- CN101771461A CN101771461A CN201010034251A CN201010034251A CN101771461A CN 101771461 A CN101771461 A CN 101771461A CN 201010034251 A CN201010034251 A CN 201010034251A CN 201010034251 A CN201010034251 A CN 201010034251A CN 101771461 A CN101771461 A CN 101771461A
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Abstract
The invention discloses a method for keeping signal synchronization in a TD-SCDMA system. The method comprises the following steps of: receiving TD-SCDMA wireless frame signals sent by a source base station; starting a cycle timer counter when a synchronous timer counter identifies effective pilot frequency characteristics from the received wireless frame signals so as to realize synchronization, wherein the period of the cycle timer counter is the period of the wireless frame signals; and according to each result of the synchronous timer counter, calibrating the cycle timer counter to keep the synchronization of the wireless frame signals. The invention also provides a device and a system for implementing the method. When the synchronous timer counter cannot synchronize the wireless frame signals normally, the cycle timer counter can continue counting, so that action can still be performed according to the cycle period of the cycle timer counter; and thus, the communication relay equipment such as a direct coupling type repeater and a trunk amplifier can be continuously synchronized with the source base station.
Description
Technical field
The present invention relates to the mobile communication technology field, particularly relate to synchronous method, the Apparatus and system of inhibit signal in a kind of TD-SCDMA system.
Background technology
TD-SCDMA (Time Division-Synchronous Code Division MultipleAccess, Time Division-Synchronous Code Division Multiple Access) be one of formal 3G (Third Generation) Moblie air interface technologies standard of issuing of the ITU of International Telecommunications Union, its key technology comprises time division duplex technology, intelligent antenna technology and the associated detection technique that can adjust the up-downgoing switching point.
Time slot map referring to TD-SCDMA shown in Figure 1, a protection (GP) is at interval all arranged between per two time slots, there are two transfer points to carry out the action of uplink downlink switch control in each subframe, wherein, first transfer point is represented to forward up link to from down link, the GP of fixed-site between descending pilot frequency time slot (DwPTS) and uplink pilot time slot (UpPTS); Second transfer point then represented to forward down link to from up link, the position is in each subframe between last ascending time slot and first descending time slot, TS0 is first descending time slot, and second transfer point is to change along with the timeslot number difference of distributing to up-downgoing.In the prior art, include three synchronization timing counters in the TD-SCDMA system, in signals transmission, three synchronization timing counters are discerned by the waveform to the special time slot of TD-SCDMA, and make the repeater enter synchronous mode, carry out the control of chain way switch up and down, thereby realize the synchronous of repeater and information source base station.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art: in signals transmission, when repeater and information source base station can't normally be carried out when synchronous, for example repeater equipment does not receive the information source signal of base station, or repeater equipment receives signal but Synchronous Processing failure etc., synchronization timing counter of the prior art has all quit work, and this will directly cause the repeater can not carry out the switching of link, thereby causes signal not transmit normally.
Summary of the invention
For solving the problems of the technologies described above, the embodiment of the invention provides synchronous method, the Apparatus and system of inhibit signal in a kind of TD-SCDMA system, thereby in a period of time after repeater and information source base station can't normally be carried out synchronously, the switching of link up and down can be continued to keep in the repeater, realizes the normal transmission of signal.Technical scheme is as follows:
The synchronous method of inhibit signal in a kind of TD-SCDMA system, this method comprises:
Receive the time-division synchronous code division multiple access TD-SCDMA radio frame signal that the information source base station is sent;
When identifying effective pilot tone feature from described radio frame signal, the synchronization timing counter obtains synchronously described radio frame signal is carried out starting the circulation timer conter when synchronous; The cycle period of described circulation timer conter is the cycle of described radio frame signal;
According to the each result of described synchronization timing counter described circulation timer conter is revised the correction value of calibration, with keep described radio frame signal synchronously.
Preferably, the correction value calibration according to the each result of described synchronization timing counter revises described circulation timer conter to keep the synchronous of described radio frame signal, specifically comprises:
After described radio frame signal weighed synchronously, described synchronization timing counter was revised calibration to described circulation timer conter;
According to the correction calibration value of described correction calibration operation and current time slot ratio, carry out the control action of the switch of link up and down.
Preferably, the described synchronization timing counter of described foundation is revised calibration to described circulation timer conter, specifically comprises:
Described synchronization timing counter is according to the correction calibration number of times that presets, the current correction calibration value that record is done the circulating cycle time value of described circulation timer conter at every turn;
Calculate the average calibration value of revising according to described correction calibration number of times and each current correction calibration value;
With described circulating cycle time value and described average correction calibration value sum as to the circulating cycle time value after the circulation timer conter correction calibration.
Preferably, also comprise:
When described synchronization timing counter can't normally carry out when synchronous described radio frame signal, according to described synchronization timing counter described circulation timer conter is repeatedly revised the average correction calibration value of calibration, continue to keep described radio frame signal synchronously.
Preferably, also comprise:
When described synchronization timing counter can't normally carry out when synchronous described radio frame signal, directly according to described synchronization timing counter to the last correction calibration value of revising calibration of circulation timer conter, continue to keep described radio frame signal synchronously.
Comprise: receiving element, synchronization timing counter and circulation timer conter, wherein,
Described receiving element is used to receive the time-division synchronous code division multiple access TD-SCDMA radio frame signal that the information source base station is sent;
Described synchronization timing counter is used for described radio frame signal is carried out synchronously, and after described circulation timer conter starts, described circulation timer conter is calibrated;
Described circulation timer conter is used for keeping the synchronous of described radio frame signal according to the calibration value of cycle period and described synchronization timing counter.
Preferably, described synchronization timing counter comprises,
Alignment unit is used for after described radio frame signal weighs synchronously, and described synchronization timing timer is calibrated described circulation timer conter;
Keep lock unit, be used for, carry out the control action of the switch of link up and down according to the calibration value of described calibration operation and current time slot ratio.
Preferably, described alignment unit specifically comprises,
The record subelement is used for according to the calibration number of times that presets the current calibration value that record is done the circulating cycle time value of described circulation timer conter at every turn;
Computation subunit is used for calculating average calibration value according to described calibration number of times and each current calibration value;
Merge subelement, be used for described circulating cycle time value and described average calibration value sum as the circulating cycle time value after the circulation timer conter is calibrated.
Preferably, also comprise:
Monitoring unit, be used to monitor the synchronization timing counter whether with described radio frame signal normal synchronized;
When monitoring described synchronization timing counter, described monitoring unit can't normally carry out when synchronous described radio frame signal, described circulation timer conter, specifically being used for directly, the described synchronization timing counter of foundation continues to keep the synchronous of described radio frame signal to the calibration value of the last calibration of circulation timer conter.
Preferably, also comprise,
Monitoring unit, be used to monitor the synchronization timing counter whether with described radio frame signal normal synchronized;
The monitoring unit synchronization monitoring can't normally carry out when synchronous described radio frame signal to timer conter, described circulation timer conter, specifically be used for the average calibration value that the described synchronization timing counter of foundation is repeatedly calibrated described circulation timer conter, continue to keep the synchronous of described radio frame signal.
The embodiment of the invention also provides a kind of system that comprises signal Synchronization device in above-mentioned each described TD-SCDMA system.
Embodiment provided by the invention compared with prior art obtains when synchronous when the synchronization timing counter identifies effective pilot tone feature from described radio frame signal, starts the circulation timer conter; The cycle period of described circulation timer conter is the cycle of described radio frame signal; According to the each result of described synchronization timing counter described circulation timer conter is calibrated, to keep the synchronous of described radio frame signal.Method or device by the embodiment of the invention, and can't normally carry out when synchronous radio frame signal at the synchronization timing counter, the circulation timer conter can be proceeded the counter switch action, still can proceed action according to the cycle period of circulation timer conter, thereby the continuation that has realized repeater and information source base station is synchronous, the problem of also having avoided portable terminal to bring because of normal received signal.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do simple the introduction to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the time slot schematic diagram of TD-SCDMA system;
Fig. 2 is the flow chart of a kind of embodiment 1 of signal synchronizing method in the TD-SCDMA system;
Fig. 3 is the flow chart of the another kind of embodiment 2 of signal synchronizing method in the TD-SCDMA system;
Fig. 4 is the particular flow sheet of calibration steps among the signal synchronizing method embodiment 2 in the TD-SCDMA system;
Fig. 5 is the structural representation of signal Synchronization device embodiment 1 in the TD-SCDMA system;
Fig. 6 is the structural representation of the another kind of embodiment 2 of signal Synchronization device in the TD-SCDMA system;
Fig. 7 is the structural representation of alignment unit among the signal Synchronization device embodiment 2 in the TD-SCDMA system.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The embodiment of the invention discloses signal synchronizing method embodiment 1 in a kind of TD-SCDMA system, referring to flow chart shown in Figure 1, the step of signal synchronizing method is as follows in the TD-SCDMA system:
Step S201: receive the time-division synchronous code division multiple access TD-SCDMA radio frame signal that the information source base station is sent.
The repeater receives the time-division synchronous code division multiple access TD-SCDMA radio frame signal that is sent by the information source base station, wherein, in the subframe structure of the radio frame signal that receives, a protection (GP) is at interval all arranged between per two time slots, there are two transfer points to carry out the action of uplink downlink switch control in each subframe, first transfer point is represented to forward up link to from down link, the GP of fixed-site between descending pilot frequency time slot (DwPTS) and uplink pilot time slot (UpPTS); Second transfer point then represented to forward down link to from up link, and the position is in each subframe between last ascending time slot and second descending time slot, and second transfer point is along with the timeslot number of distributing to up-downgoing is different and change.
Step S202: obtain when synchronous when the synchronization timing counter identifies effective pilot tone feature from described radio frame signal, start the circulation timer conter.
The synchronization timing counter is discerned the special time slot waveform in the received TD-SCDMA radio frame signal, according to the special time slot waveform, making the repeater enter synchronous mode, promptly is normally to carry out the switching of chain way switch up and down when the up-downgoing transfer point of frame structure arrives.Wherein, special time slot comprises DwPTS, GP and UpPTS.
At the synchronization timing counter described TD-SCDMA radio frame signal is carried out when synchronous, start the circulation timer conter.Wherein, the cycle period of circulation timer conter is the cycle of described radio frame signal.
Step S203: the result each according to the synchronization timing counter calibrates the circulation timer conter, to keep the synchronous of radio frame signal.
The synchronization timing counter is calibrated the circulating cycle time value of circulation timer conter, then in real process, just can carry out the switch control of link up and down according to the calibration value after the calibration.Need to prove, keep can be understood as synchronously of radio frame signal, after step-out, keep the synchronous of radio frame signal again, also can keep under the synchronous situation of radio frame signal always, continue to keep the synchronous of radio frame signal.
The synchronous method of inhibit signal in the disclosed TD-SCDMA of the embodiment of the invention system, by increase the circulation timer conter realize to the TD-SCDMA radio frame signal synchronously, and can't normally carry out when synchronous radio frame signal at the synchronization timing counter, the circulation timer conter can be proceeded the counter switch action, still can proceed action according to the cycle period of circulation timer conter, thereby the continuation that has realized repeater and information source base station is synchronous, the problem of also having avoided portable terminal to bring because of normal received signal.
Referring to the flow chart of preferred embodiment 2 methods shown in Figure 3, the method for signal Synchronization in the TD-SCDMA system is elaborated.
The concrete steps of signal synchronizing method are as follows in the TD-SCDMA system:
Step S301: receive the time-division synchronous code division multiple access TD-SCDMA radio frame signal that the information source base station is sent.
The repeater receives the time-division synchronous code division multiple access TD-SCDMA radio frame signal that is sent by the information source base station, wherein, a protection (GP) is at interval all arranged between per two time slots in the radio frame signal subframe structure that receives, there are two transfer points to carry out the action of uplink downlink switch control in each subframe, first transfer point is represented to forward up link to from down link, the GP of fixed-site between descending pilot frequency time slot (DwPTS) and uplink pilot time slot (UpPTS); Second transfer point then represented to forward down link to from up link, and the position is in each subframe between last ascending time slot and second descending time slot, and second transfer point is along with the timeslot number of distributing to up-downgoing is different and change.
Step S302: the synchronization timing counter is discerned the TD-SCDMA radio frame signal.
The synchronization timing counter is discerned the special time slot waveform of received TD-SCDMA radio frame signal, if recognize the special time slot waveform is specific waveforms, then make the repeater enter synchronous mode, promptly be when the up-downgoing transfer point of frame structure arrives, normally to carry out the switching of chain way switch up and down, then execution in step S303.Wherein, special time slot comprises DwPTS, GP and UpPTS.
Step S303: start the circulation timer conter by CPLD.
The synchronization timing counter sends start command signal to CPLD (Complex ProgrammableLogic Device, the programmable logic device of structure more complicated), and CPLD starts the circulation timer conter according to received command signal.
Step S304: the synchronization timing counter is calibrated the circulating cycle time value of circulation timer conter according to each result.
The specific implementation of this step can be with reference to flow chart shown in Figure 4, and this step specifically can realize by following steps:
Step 401: after radio frame signal weighed synchronously, the synchronization timing counter write down the current calibration value of at every turn the circulating cycle time value of circulation timer conter being done according to the calibration number of times that presets.
After radio frame signal weighs synchronously, the synchronization timing counter is according to the calibration number of times that presets, the currency that record is done circulation timer conter cycle period at every turn, wherein, once resulting calibration value was as current calibration value before each resulting new calibration value will be replaced.
Step 402: after described calibration number of times was finished, the synchronization timing counter calculated average calibration value according to calibration number of times and each current calibration value.
The synchronization timing counter calculates average calibration value according to the number of times of being calibrated and each current calibration value that writes down after finishing the calibration of circulation timer conter circulating cycle time value being preset the calibration number of times.
Step 403: with circulating cycle time value and described average calibration value sum as to the circulating cycle time value after the calibration of circulation timer conter.
The circulation timer conter is with the average calibration value sum that calculated among circulating cycle time value and the step S402 circulating cycle time value after as calibration.
Step S305:, carry out the control action of the switch of link up and down according to the calibration value of described calibration operation and current time slot ratio.
Calibration value of the circulation timer conter being calibrated according to the synchronization timing counter and current time slot ratio determine at which time slot to switch and find this point, carry out the control action of the switch of link up and down.
In addition, after described step S305, can also comprise:
Step S306: when described synchronization timing counter can't normally carry out when synchronous described radio frame signal, directly according to the calibration value of described synchronization timing counter to the last calibration of circulation timer conter, continue to keep described radio frame signal synchronously.
Perhaps, after described step S305, also can comprise:
Step S307: when described synchronization timing counter can't normally carry out when synchronous described radio frame signal, according to the average calibration value that described synchronization timing counter is repeatedly calibrated described circulation timer conter, continue to keep described radio frame signal synchronously.
For step S306 and S307, for convenience, adopted the mode that limits sequencing, in the practical application scene, only S306 or a kind of separately situation of S307 in steps.Can't normally carry out when synchronous radio frame signal at the synchronization timing counter, if the synchronization timing counter has been finished the record that the circulation timer conter is preset the number of times calibration value, then directly according to the synchronization timing counter calibration value nearest to the circulation timer conter, proceed the action of chain way switch up and down, and proceed the calibration of circulating cycle time value in each cycle.If timer conter is not finished the record that presets the number of times calibration value,, proceed the control of chain way switch up and down then according to the mean value of synchronization timing counter to the current calibration value of circulation timer conter.
Corresponding with the inventive method embodiment 1, the invention also discloses signal Synchronization device embodiment 1 in a kind of TD-SCDMA system, with reference to shown in Figure 5, this device specifically can comprise:: receiving element 510, synchronization timing counter 520 and circulation timer conter 530, wherein
Receiving element 510 is used to receive the time-division synchronous code division multiple access TD-SCDMA radio frame signal that the information source base station is sent.
Accept unit 510 and receive the time-division synchronous code division multiple access TD-SCDMA radio frame signal that is sent by the information source base station, wherein, in the subframe structure of the radio frame signal that receives, a protection (GP) is at interval all arranged between per two time slots, there are two transfer points to carry out the action of uplink downlink switch control in each subframe, first transfer point is represented to forward up link to from down link, the GP of fixed-site between descending pilot frequency time slot (DwPTS) and uplink pilot time slot (UpPTS); Second transfer point then represented to forward down link to from up link, and the position is in each subframe between last ascending time slot and second descending time slot, and second transfer point is along with the timeslot number of distributing to up-downgoing is different and change.
Synchronization timing counter 520 is used for radio frame signal is carried out synchronously, and after circulation timer conter 530 starts, circulation timer conter 530 is calibrated.
Special time slot waveform in 520 pairs of received TD-SCDMA radio frame signal of synchronization timing counter is discerned, according to the special time slot waveform, making the repeater enter synchronous mode, promptly is normally to carry out the switching of chain way switch up and down when the up-downgoing transfer point of frame structure arrives.Wherein, special time slot comprises DwPTS, GP and UpPTS.
Carry out when synchronous in 520 pairs of received TD-SCDMA radio frame signal of synchronization timing counter, start circulation timer conter 530, and the circulating cycle time value of circulation timer conter 530 is calibrated.
Circulation timer conter 530 is used for keeping the synchronous of radio frame signal according to the calibration value of cycle period and synchronization timing counter.
Circulation timer conter 530 according to self cycle period and synchronization timing counter 520 to its calibration value after the calibration of doing, carry out the switch control of link up and down.Need to prove, keep can be understood as synchronously of radio frame signal, after step-out, keep the synchronous of radio frame signal again, also can keep under the synchronous situation of radio frame signal always, continue to keep the synchronous of radio frame signal.
The synchronous device of inhibit signal in the disclosed TD-SCDMA of the embodiment of the invention system, by increase the circulation timer conter realize to the TD-SCDMA radio frame signal synchronously, and can't normally carry out when synchronous radio frame signal at the synchronization timing counter, the circulation timer conter can be proceeded the counter switch action, still can proceed action according to the cycle period of circulation timer conter, thereby the continuation that has realized repeater and information source base station is synchronous, the problem of also having avoided portable terminal to bring because of normal received signal.
Corresponding with the inventive method embodiment 2, the invention also discloses the synchronous device embodiment 2 of inhibit signal in a kind of TD-SCDMA system, with reference to shown in Figure 6, this device specifically can comprise: receiving element 610, synchronization timing counter 620, monitoring unit 630 and cycle timer 640, wherein, synchronization timing counter 620 comprises alignment unit 621 and keeps lock unit 622.
Receiving element 610 is used to receive the time-division synchronous code division multiple access TD-SCDMA radio frame signal that the information source base station is sent.
Accept unit 610 and receive the time-division synchronous code division multiple access TD-SCDMA radio frame signal that is sent by the information source base station, wherein, in the subframe structure of the radio frame signal that receives, a protection (GP) is at interval all arranged between per two time slots, there are two transfer points to carry out the action of uplink downlink switch control in each subframe, first transfer point is represented to forward up link to from down link, the GP of fixed-site between descending pilot frequency time slot (DwPTS) and uplink pilot time slot (UpPTS); Second transfer point then represented to forward down link to from up link, and the position is in each subframe between last ascending time slot and second descending time slot, and second transfer point is along with the timeslot number of distributing to up-downgoing is different and change.
Synchronization timing counting unit 620 is used for described radio frame signal is carried out synchronously, and after described circulation timer conter starts, described circulation timer conter is calibrated.
Keep the special time slot waveform in 622 pairs of received TD-SCDMA radio frame signal of lock unit to discern, according to the special time slot waveform, making the repeater enter synchronous mode, promptly is normally to carry out the switching of chain way switch up and down when the up-downgoing transfer point of frame structure arrives.Wherein, special time slot comprises DwPTS, GP and UpPTS.
Keeping 622 pairs of received TD-SCDMA radio frame signal of lock unit to carry out starting circulation timer conter 630 when synchronous, the circulating cycle time value of 621 pairs of circulation timer conters 630 of alignment unit is calibrated.
Perhaps, when synchronization timing counter 620 and received radio frame signal can't normal synchronized, synchronization timing counter 620 is not finished the record that presets the number of times calibration value, 640 mean values according to 620 pairs of circulation timer conter 640 current calibration values of synchronization timing counter of circulation timer conter are proceeded the control of chain way switch up and down.
Need to prove, keep can be understood as synchronously of radio frame signal, after step-out, keep the synchronous of radio frame signal again, also can keep under the synchronous situation of radio frame signal always, continue to keep the synchronous of radio frame signal.
Circulation timer counter unit 640 is used for keeping the synchronous of described radio frame signal according to the calibration value of cycle period and described synchronization timing counter.
Preferably, referring to shown in Figure 7, alignment unit specifically comprises record subelement 710, computation subunit 720 and merges subelement 730.
Wherein, record subelement 710 is used for according to the calibration number of times that presets, the current calibration value that record is done the circulating cycle time value of described circulation timer conter 640 at every turn.
After radio frame signal weighs synchronously, record subelement 710 is according to the calibration number of times that presets, the currency that record is done circulation timer conter 640 cycle periods at every turn, wherein, once resulting calibration value was as current calibration value before each resulting new calibration value will be replaced.
Merge subelement 730, be used for the circulating cycle time value of circulation timer conter 640 and resulting average calibration value sum as the circulating cycle time value after circulation timer conter 640 is calibrated.
Merging subelement 730 calculates resulting average calibration value sum as the circulating cycle time value after circulation timer conter 640 is calibrated with the circulating cycle time value of circulation timer conter 640 with record subelement 710.
In addition, have in the TD-SCDMA system that the system of any one device also is an invention which is intended to be protected in the signal Synchronization device.
Need to prove that each embodiment in this specification all adopts the mode of going forward one by one to describe, what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For device class embodiment, because it is similar substantially to method embodiment, so description is fairly simple, relevant part gets final product referring to the part explanation of method embodiment.
Need to prove, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby make and comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or also be included as this process, method, article or equipment intrinsic key element.Do not having under the situation of more restrictions, the key element that limits by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
The above only is the specific embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (11)
1. the synchronous method of inhibit signal in the TD-SCDMA system is characterized in that, comprising:
Receive the time-division synchronous code division multiple access TD-SCDMA radio frame signal that the information source base station is sent;
Obtain when synchronous when the synchronization timing counter identifies effective pilot tone feature from described radio frame signal, start the circulation timer conter; The cycle period of described circulation timer conter is the cycle of described radio frame signal;
According to the each result of described synchronization timing counter described circulation timer conter is calibrated, to keep the synchronous of described radio frame signal.
2. method according to claim 1 is characterized in that, according to the each result of described synchronization timing counter described circulation timer conter is calibrated, and to keep the synchronous of described radio frame signal, specifically comprises:
After described radio frame signal weighed synchronously, described synchronization timing counter was calibrated described circulation timer conter;
According to the calibration value of described calibration operation and current time slot ratio, carry out the control action of the switch of link up and down.
3. method according to claim 2 is characterized in that, the described synchronization timing counter of described foundation is calibrated described circulation timer conter, specifically comprises:
Described synchronization timing counter writes down the current calibration value of at every turn the circulating cycle time value of described circulation timer conter being done according to the calibration number of times that presets;
Calculate average calibration value according to described calibration number of times and each current calibration value;
With described circulating cycle time value and described average calibration value sum as to the circulating cycle time value after the calibration of circulation timer conter.
4. method according to claim 1 is characterized in that, also comprises:
When described synchronization timing counter can't normally carry out when synchronous described radio frame signal, according to the average calibration value that described synchronization timing counter is repeatedly calibrated described circulation timer conter, continue to keep described radio frame signal synchronously.
5. method according to claim 1 is characterized in that, also comprises:
When described synchronization timing counter can't normally carry out when synchronous described radio frame signal, directly according to the calibration value of described synchronization timing counter to the last calibration of circulation timer conter, continue to keep described radio frame signal synchronously.
6. the synchronous device of inhibit signal in the TD-SCDMA system is characterized in that, comprising: receiving element, synchronization timing counter and circulation timer conter, wherein,
Described receiving element is used to receive the time-division synchronous code division multiple access TD-SCDMA radio frame signal that the information source base station is sent;
Described synchronization timing counter is used for described radio frame signal is carried out synchronously, and after described circulation timer conter starts, described circulation timer conter is calibrated;
Described circulation timer conter is used for keeping the synchronous of described radio frame signal according to the calibration value of cycle period and described synchronization timing counter.
7. according to the described device of claim 6, it is characterized in that described synchronization timing counter comprises,
Alignment unit is used for after described radio frame signal weighs synchronously, and described synchronization timing timer is calibrated described circulation timer conter;
Keep lock unit, be used for, carry out the control action of the switch of link up and down according to the calibration value of described calibration operation and current time slot ratio.
8. according to the described device of claim 6, it is characterized in that described alignment unit specifically comprises,
The record subelement is used for according to the calibration number of times that presets the current calibration value that record is done the circulating cycle time value of described circulation timer conter at every turn;
Computation subunit is used for calculating average calibration value according to described calibration number of times and each current calibration value;
Merge subelement, be used for described circulating cycle time value and described average calibration value sum as the circulating cycle time value after the circulation timer conter is calibrated.
9. according to the described device of claim 6, it is characterized in that, also comprise:
Monitoring unit, be used to monitor the synchronization timing counter whether with described radio frame signal normal synchronized;
When monitoring described synchronization timing counter, described monitoring unit can't normally carry out when synchronous described radio frame signal, described circulation timer conter, specifically being used for directly, the described synchronization timing counter of foundation continues to keep the synchronous of described radio frame signal to the calibration value of the last calibration of circulation timer conter.
10. device according to claim 6 is characterized in that, also comprises,
Monitoring unit, be used to monitor the synchronization timing counter whether with described radio frame signal normal synchronized;
The monitoring unit synchronization monitoring can't normally carry out when synchronous described radio frame signal to timer conter, described circulation timer conter, specifically be used for the average calibration value that the described synchronization timing counter of foundation is repeatedly calibrated described circulation timer conter, continue to keep the synchronous of described radio frame signal.
11. the synchronous system of inhibit signal is characterized in that in the TD-SCDMA system, has as signal Synchronization device in each described TD-SCDMA system of claim 6-10.
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| CN107850631A (en) * | 2015-04-03 | 2018-03-27 | 大力系统有限公司 | Method and system for the link synchronization in LTE TDD frameworks |
| CN110430614A (en) * | 2019-08-06 | 2019-11-08 | 深圳前海中电慧安科技有限公司 | Base station signal synchronous method, device, equipment and storage medium based on GPS signal |
| CN111565450A (en) * | 2020-01-14 | 2020-08-21 | 深圳国人无线通信有限公司 | Method and system for self-adaptively adjusting time delay of base station |
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| CN107850631A (en) * | 2015-04-03 | 2018-03-27 | 大力系统有限公司 | Method and system for the link synchronization in LTE TDD frameworks |
| CN107850631B (en) * | 2015-04-03 | 2020-06-26 | 大力系统有限公司 | Method and system for link synchronization in LTE-TDD architectures |
| CN110430614A (en) * | 2019-08-06 | 2019-11-08 | 深圳前海中电慧安科技有限公司 | Base station signal synchronous method, device, equipment and storage medium based on GPS signal |
| CN111565450A (en) * | 2020-01-14 | 2020-08-21 | 深圳国人无线通信有限公司 | Method and system for self-adaptively adjusting time delay of base station |
| CN111565450B (en) * | 2020-01-14 | 2022-05-17 | 深圳国人无线通信有限公司 | Method and system for self-adaptively adjusting time delay of base station |
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