CN101668334B - Method for acquiring TD-SCDMA sync signal in self-adaptive manner, system and device - Google Patents
Method for acquiring TD-SCDMA sync signal in self-adaptive manner, system and device Download PDFInfo
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- CN101668334B CN101668334B CN2009101902717A CN200910190271A CN101668334B CN 101668334 B CN101668334 B CN 101668334B CN 2009101902717 A CN2009101902717 A CN 2009101902717A CN 200910190271 A CN200910190271 A CN 200910190271A CN 101668334 B CN101668334 B CN 101668334B
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Abstract
The embodiment of the invention discloses a method for acquiring a TD-SCDMA sync signal in a self-adaptive manner, wherein the method comprises the following steps: receiving a TD-SCDMA signal, converting the received TD-SCDMA signal into a voltage square wave signal, determining the starting and ending time information of each time slot of the TD-SCDMA signal according to the voltage square wave signal converted from the TD-SCDMA signal, and generating a synchronic control pulse signal according to the determined starting and ending time information of each time slot of the TD-SCDMA signal. The invention also discloses a system and a device for acquiring the TD-SCDMA sync signal in the self-adaptive manner, therefore, the starting and ending time information of each time slot of the TD-SCDMA signal is determined according to the received TD-SCDMA signal, thus acquiring the synchronic control pulse signal in the self-adaptive manner, and reducing technical cost.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of method of acquiring TD-SCDMA sync signal in self-adaptive manner, the system of acquiring TD-SCDMA sync signal in self-adaptive manner, the device of acquiring TD-SCDMA sync signal in self-adaptive manner.
Background technology
TD-SCDMA (Time Division-Synchronous Code Division Multiple Access; The CDMA that time-division is synchronous) the 3G (Third Generation) Moblie standard that proposes as China, TD-SCDMA communication has aspects such as flexibility, frequency flexibility and cost in the availability of frequency spectrum, to business support has unique advantage.TD-SCDMA communication is owing to adopt the communication mode of time division duplex; Up link adopts this identical frequency to communicate with down link; Through adopting different time to distinguish and the operating state of control up link and down link, simultaneously, TD-SCDMA communication needs very correct time synchronizing information are controlled the operating state of each circuit of said up link and down link; The method that the correct time synchronizing information of the mobile communication network optimization of TD-SCDMA described in prior art product is obtained common employing comprises: carry out synchronously through said TD-SCDMA base station output lock-out pulse; This technology is harsh to the environmental requirement that product uses, and TD-SCDMA base station or the RRU equipment such as (Radio Remote Unit, radio frequency remoto modules) that needs cooperates; Or adopt the TD-SCDMA end product to obtain synchronizing signal; But cost that should technology is higher, or adopts GPS (Global Position System, global positioning system) to obtain synchronizing signal; This technological cost is also higher, and is only applicable to receive the outdoor environment of gps signal.
Summary of the invention
In view of this; The embodiment of the invention provides a kind of method of acquiring TD-SCDMA sync signal in self-adaptive manner, the system of acquiring TD-SCDMA sync signal in self-adaptive manner, the device of acquiring TD-SCDMA sync signal in self-adaptive manner; TD-SCDMA signal according to said reception; Confirm the temporal information that the initial sum of each time slot of TD-SCDMA signal stops, thereby the adaptive Synchronization Control pulse signal that obtains has reduced technical costs.
The embodiment of the invention provides a kind of method of acquiring TD-SCDMA sync signal in self-adaptive manner, comprising:
Receive the TD-SCDMA signal;
The said TD-SCDMA conversion of signals that receives is become voltage square wave signal;
Write down each rising edge of said voltage square wave signal and the temporal information of trailing edge;
According to each continuous rising edge and the time difference between the trailing edge, confirm the temporal information that the initial sum of each time slot of said TD-SCDMA signal stops;
Temporal information according to the initial sum of each time slot of said definite TD-SCDMA signal stops produces a Synchronization Control pulse signal;
Said according to each continuous rising edge and the time difference between the trailing edge, confirm that the temporal information that the initial sum of each time slot of said TD-SCDMA signal stops specifically comprises:
When a continuous trailing edge that receives is 37.5us with time difference between the rising edge, when the time difference between this rising edge and the next trailing edge is 50us simultaneously, the zero-time that then definite said rising edge time is time slot DwPTS;
According to the initial temporal information of said definite time slot DwPTS, calculate the temporal information that the initial sum of each time slot of confirming said TD-SCDMA information stops.
Preferably, the temporal information that the initial sum of said each time slot according to said definite TD-SCDMA signal stops produces a Synchronization Control pulse signal and further comprises afterwards:
Control the microwave components of uplink and downlink according to the Synchronization Control pulse signal of said generation.
Preferably, further comprise:
Periodically obtain said TD-SCDMA synchronizing information, the said cycle is the duration 5ms of a frame TD-SCDMA signal.
The system of a kind of acquiring TD-SCDMA sync signal in self-adaptive manner of the embodiment of the invention comprises:
Receiver module is used to receive the TD-SCDMA signal;
Modular converter is used for the said TD-SCDMA conversion of signals that receives is become voltage square wave signal;
Record cell is used to write down each rising edge of said voltage square wave signal and the temporal information of trailing edge;
Positioning unit was used for according to each continuous rising edge and the time difference between the trailing edge, confirmed the temporal information that the initial sum of each time slot of said TD-SCDMA signal stops;
Generation module is used for the temporal information that the initial sum according to each time slot of said definite TD-SCDMA signal stops, and produces a Synchronization Control pulse signal;
Said according to each continuous rising edge and the time difference between the trailing edge, confirm that the temporal information that the initial sum of each time slot of said TD-SCDMA signal stops specifically comprises:
When a continuous trailing edge that receives is 37.5us with time difference between the rising edge, when the time difference between this rising edge and the next trailing edge is 50us simultaneously, the zero-time that then definite said rising edge time is time slot DwPTS;
According to the initial temporal information of said definite time slot DwPTS, calculate the temporal information that the initial sum of each time slot of confirming said TD-SCDMA information stops.
Preferably, also comprise:
Control module is used for controlling according to the Synchronization Control pulse signal of said generation the microwave components of uplink and downlink.
The device of a kind of acquiring TD-SCDMA sync signal in self-adaptive manner of the embodiment of the invention, said device comprises the system of above-described acquiring TD-SCDMA sync signal in self-adaptive manner.
Embodiment of the present invention embodiment; Through receiving the TD-SCDMA signal; The said TD-SCDMA conversion of signals that receives is become voltage square wave signal,, confirm the temporal information that the initial sum of each time slot of said TD-SCDMA signal stops according to the voltage square wave signal that said TD-SCDMA conversion of signals becomes; Temporal information according to the initial sum of each time slot of said definite TD-SCDMA signal stops produces a Synchronization Control pulse signal.Realized TD-SCDMA signal, confirm the temporal information that the initial sum of each time slot of TD-SCDMA signal stops, thereby the adaptive Synchronization Control pulse signal that obtains has reduced technical costs according to said reception.
Description of drawings
Fig. 1 is the flow chart of first embodiment of the method for acquiring TD-SCDMA sync signal in self-adaptive manner of the present invention;
Fig. 2 is the flow chart of second embodiment of the method for acquiring TD-SCDMA sync signal in self-adaptive manner of the present invention;
Fig. 3 is the structural representation of the system of acquiring TD-SCDMA sync signal in self-adaptive manner of the present invention;
Fig. 4 is the structural representation of processing module of the system of acquiring TD-SCDMA sync signal in self-adaptive manner of the present invention;
Fig. 5 is the structural representation of the device of acquiring TD-SCDMA sync signal in self-adaptive manner of the present invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, 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 are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
For making the object of the invention, technical scheme and advantage clearer, below with reference to accompanying drawing to embodiment of the invention further explain.
With reference to figure 1, be the flow chart of first embodiment of the method for acquiring TD-SCDMA sync signal in self-adaptive manner of the present invention.As shown in Figure 1, this method may further comprise the steps:
Step S101 receives the TD-SCDMA signal.
In this step; Said reception TD-SCDMA signal; The TD-SCDMA signal that is specially said reception is a radiofrequency signal, and the TD-SCDMA signal of said reception is the downstream signal in the said TD-SCDMA signal, and concrete can be for obtaining said TD-SCDMA signal through a coupler coupling; Said reception TD-SCDMA signal is the periodic TD-SCDMA of reception signal, and the said cycle is the duration 5ms of a frame TD-SCDMA signal.
Step S102 becomes voltage square wave signal with the said TD-SCDMA conversion of signals that receives.
In this step; Said the said TD-SCDMA conversion of signals that receives is become voltage square wave signal; Being specially the said TD-SCDMA signal that receives is radiofrequency signal; Obtaining the concrete waveform of said TD-SCDMA signal just needs the said TD-SCDMA conversion of signals that receives is become voltage square wave signal; Concrete can change the said TD-SCDMA radiofrequency signal dress that receives into voltage square wave signal through an integrated RF wave detector; Because the voltage square wave signal through after the conversion of said integrated RF wave detector can have some burrs, in order to obtain the normal voltage square-wave signal that the voltage square wave signal of standard more further can obtain said TD-SCDMA signal through signal shaping.
Step S103 according to the voltage square wave signal that said TD-SCDMA conversion of signals becomes, confirms the temporal information that the initial sum of each time slot of said TD-SCDMA signal stops.
In this step; The said voltage square wave signal that becomes according to said TD-SCDMA conversion of signals; Confirm the temporal information that the initial sum of each time slot of said TD-SCDMA signal stops; Be specially according to said TD-SCDMA voltage of signals square-wave signal; Write down each rising edge and the temporal information of trailing edge in the said voltage square wave signal,, calculate and write down each continuous rising edge and the time difference between the trailing edge further according to the temporal information of said each rising edge and trailing edge; Because said voltage square wave signal is corresponding with the physical layer architecture of said TD-SCDMA signal; Confirm the temporal information that the initial sum of each time slot of said TD-SCDMA signal stops through the time difference between said rising edge and the trailing edge, concrete, the time difference between a continuous trailing edge that receives and rising edge is 37.5us; When the time difference between this rising edge and the next trailing edge is 50us simultaneously; Then confirm the zero-time that the said rising edge time is time slot DwPTS, because the time slot TS0 of said TD-SCDMA signal and time slot DwPTS have energy having under the situation of signal, and different between the guard time between said time slot TS0 and the time slot DwPTS and other time slots; This protection time slot is long to be 37.5us; Simultaneously the time span of time slot DwPTS is 50us with also different these time slots of other time slots, so confirm initial time of said DwPTS time slot through obtaining time difference between said rising edge and the trailing edge, further initial temporal information according to said definite time slot DwPTS; Calculate the temporal information of the initial sum termination of each time slot of confirming said TD-SCDMA information; Because the temporal information between the said TD-SCDMA information time slot is fixed, thus can be through calculating the temporal information of the initial sum termination that confirm other time slots, as confirmed that the termination time of time slot DwPTS is that zero-time adds 50us so for the zero-time of time slot DwPTS; Come to confirm the initial sum termination time information of other time slots by that analogy; Concrete can realize the temporal information that the initial sum of each time slot of said definite said TD-SCDMA signal stops through a single-chip microcomputer, and for periodically obtaining said TD-SCDMA synchronizing information, the said cycle is the duration 5ms of a frame TD-SCDMA signal simultaneously.
Step S104, the temporal information according to the initial sum of each time slot of said definite TD-SCDMA signal stops produces a Synchronization Control pulse signal.
In this step; The temporal information that the initial sum of said each time slot according to said definite TD-SCDMA signal stops; Produce a Synchronization Control pulse signal; The temporal information that the initial sum of each time slot through the TD-SCDMA signal confirmed stops just can produce a Synchronization Control pulse signal, the further microwave components of controlling uplink and downlink through this synchronization pulse accurately.
Embodiment of the present invention embodiment; Through receiving the TD-SCDMA signal; The said TD-SCDMA conversion of signals that receives is become voltage square wave signal,, confirm the temporal information that the initial sum of each time slot of said TD-SCDMA signal stops according to the voltage square wave signal that said TD-SCDMA conversion of signals becomes; Temporal information according to the initial sum of each time slot of said definite TD-SCDMA signal stops produces a Synchronization Control pulse signal.Realized TD-SCDMA signal, confirm the temporal information that the initial sum of each time slot of TD-SCDMA signal stops, thereby the adaptive Synchronization Control pulse signal that obtains has reduced technical costs according to said reception.
With reference to figure 2, be the flow chart of second embodiment of the method for acquiring TD-SCDMA sync signal in self-adaptive manner of the present invention.As shown in Figure 2, this method may further comprise the steps:
Step S201 is corresponding one by one and identical to step S102 with the method step S101 described in said Fig. 1 to step S202, does not just add at this and gives unnecessary details.
Step S203 writes down each rising edge of said voltage square wave signal and the temporal information of trailing edge.
In this step, each rising edge of the said voltage square wave signal of said record and the temporal information of trailing edge are specially each rising edge of the voltage square wave signal that said TD-SCDMA signal is corresponding and the temporal information of trailing edge and write down and preserve.
Step S204 according to said each continuous rising edge and the time difference between the trailing edge, confirms the temporal information that the initial sum of each time slot of said TD-SCDMA signal stops.
In this step; Said according to said each continuous rising edge and the time difference between the trailing edge; Confirm the temporal information that the initial sum of each time slot of said TD-SCDMA signal stops; Be specially temporal information according to said each rising edge and trailing edge; Calculate also and write down each continuous rising edge and the time difference between the trailing edge,, confirm the temporal information of initial sum termination of each time slot of said TD-SCDMA signal through the time difference between said rising edge and the trailing edge because said voltage square wave signal is corresponding with the physical layer architecture of said TD-SCDMA signal; Concrete; When a continuous trailing edge that receives is 37.5us with time difference between the rising edge, when the time difference between this rising edge and the next trailing edge is 50us simultaneously, the zero-time that then definite said rising edge time is time slot DwPTS; Because the time slot TS0 of said TD-SCDMA signal and time slot DwPTS have energy having under the situation of signal; And different between the guard time between said time slot TS0 and the time slot DwPTS and other time slots, this protection time slot is long to be 37.5us, and the time span of time slot DwPTS is 50us with also different these time slots of other time slots simultaneously; So through obtaining the initial time of the definite said DwPTS time slot of time difference between said rising edge and the trailing edge; Further according to the initial temporal information of said definite time slot DwPTS, calculate the temporal information that the initial sum of each time slot of confirming said TD-SCDMA information stops, because the temporal information between the said TD-SCDMA information time slot is fixed; So can be through calculating the temporal information of the initial sum termination of confirming other time slots; As the zero-time of having confirmed time slot DwPTS so the termination time of time slot DwPTS be that zero-time adds 50us, come to confirm the initial sum termination time information of other time slots by that analogy, concrete can realize the temporal information that the said initial sum of confirming each time slot of said TD-SCDMA signal stops through a single-chip microcomputer; For periodically obtaining said TD-SCDMA synchronizing information, the said cycle is the duration 5ms of a frame TD-SCDMA signal simultaneously.
Step S205 is corresponding and identical with the method step S104 described in said Fig. 1, does not just add at this and gives unnecessary details.
Step S206 controls the microwave components of uplink and downlink according to the Synchronization Control pulse signal of said generation.
In this step; The said microwave components of controlling uplink and downlink according to the Synchronization Control pulse signal of said generation; Being specially is Synchronization Control pulse signal and the said TD-SCDMA signal Synchronization that produces; Can control said uplink and downlink microwave components accurately, close up link when descending signal through time control microwave components and open down link, when upward signal through the time control microwave components open up link and close down link.
Embodiment of the present invention embodiment; Through receiving the TD-SCDMA signal; The said TD-SCDMA conversion of signals that receives is become voltage square wave signal,, confirm the temporal information that the initial sum of each time slot of said TD-SCDMA signal stops according to the voltage square wave signal that said TD-SCDMA conversion of signals becomes; Temporal information according to the initial sum of each time slot of said definite TD-SCDMA signal stops produces a Synchronization Control pulse signal.Realized TD-SCDMA signal, confirm the temporal information that the initial sum of each time slot of TD-SCDMA signal stops, thereby the adaptive Synchronization Control pulse signal that obtains has reduced technical costs according to said reception.
With reference to figure 3; It is the structural representation of the system of acquiring TD-SCDMA sync signal in self-adaptive manner of the present invention; As shown in Figure 3, the system of acquiring TD-SCDMA sync signal in self-adaptive manner of the present invention mainly comprises receiver module 1, modular converter 2, processing module 3, generation module 4 and control module 5.Facing each functions of modules and correlation down elaborates.
Receiver module 1 is used to receive the TD-SCDMA signal.
Said reception TD-SCDMA signal; The TD-SCDMA signal that is specially said reception is a radiofrequency signal; The TD-SCDMA signal of said reception is the downstream signal in the said TD-SCDMA signal, and concrete can be for obtaining said TD-SCDMA signal through a coupler coupling.
Said the said TD-SCDMA conversion of signals that receives is become voltage square wave signal; Being specially the said TD-SCDMA signal that receives is radiofrequency signal; Obtaining the concrete waveform of said TD-SCDMA signal just needs the said TD-SCDMA conversion of signals that receives is become voltage square wave signal; Concrete can change the said TD-SCDMA radiofrequency signal dress that receives into voltage square wave signal through an integrated RF wave detector; Because the voltage square wave signal through after the conversion of said integrated RF wave detector can have some burrs, in order to obtain the normal voltage square-wave signal that the voltage square wave signal of standard more further can obtain said TD-SCDMA signal through signal shaping.
Each rising edge of the said voltage square wave signal of said record and the temporal information of trailing edge are specially each rising edge of the voltage square wave signal that said TD-SCDMA signal is corresponding and the temporal information of trailing edge and write down and preserve.
Positioning unit 32 was used for according to said each continuous rising edge and the time difference between the trailing edge, confirmed the temporal information that the initial sum of each time slot of said TD-SCDMA signal stops.
Said according to said each continuous rising edge and the time difference between the trailing edge; Confirm the temporal information that the initial sum of each time slot of said TD-SCDMA signal stops; Be specially temporal information according to said each rising edge and trailing edge; Calculate and write down each continuous rising edge and the time difference between the trailing edge; Because said voltage square wave signal is corresponding with the physical layer architecture of said TD-SCDMA signal; Confirm the temporal information that the initial sum of each time slot of said TD-SCDMA signal stops through the time difference between said rising edge and the trailing edge, concrete, the time difference between a continuous trailing edge that receives and rising edge is 37.5us; When the time difference between this rising edge and the next trailing edge is 50us simultaneously; Then confirm the zero-time that the said rising edge time is time slot DwPTS, because the time slot TS0 of said TD-SCDMA signal and time slot DwPTS have energy having under the situation of signal, and different between the guard time between said time slot TS0 and the time slot DwPTS and other time slots; This protection time slot is long to be 37.5us; Simultaneously the time span of time slot DwPTS is 50us with also different these time slots of other time slots, so confirm initial time of said DwPTS time slot through obtaining time difference between said rising edge and the trailing edge, further initial temporal information according to said definite time slot DwPTS; Calculate the temporal information of the initial sum termination of each time slot of confirming said TD-SCDMA information; Because the temporal information between the said TD-SCDMA information time slot is fixed, thus can be through calculating the temporal information of the initial sum termination that confirm other time slots, as confirmed that the termination time of time slot DwPTS is that zero-time adds 50us so for the zero-time of time slot DwPTS; Come to confirm the initial sum termination time information of other time slots by that analogy; Concrete can realize the temporal information that the initial sum of each time slot of said definite said TD-SCDMA signal stops through a single-chip microcomputer, and for periodically obtaining said TD-SCDMA synchronizing information, the said cycle is the duration 5ms of a frame TD-SCDMA signal simultaneously.
The temporal information that the initial sum of said each time slot according to said definite TD-SCDMA signal stops; Produce a Synchronization Control pulse signal; The temporal information that the initial sum of each time slot through the TD-SCDMA signal confirmed stops just can produce a Synchronization Control pulse signal, the further microwave components of controlling uplink and downlink through this synchronization pulse accurately.
The said microwave components of controlling uplink and downlink according to the Synchronization Control pulse signal of said generation; Being specially is Synchronization Control pulse signal and the said TD-SCDMA signal Synchronization that produces; Can control said uplink and downlink microwave components accurately; Close up link when descending signal through time control microwave components and open down link, when upward signal through the time control microwave components open up link and close down link.
Embodiment of the present invention embodiment; Through receiving the TD-SCDMA signal; The said TD-SCDMA conversion of signals that receives is become voltage square wave signal,, confirm the temporal information that the initial sum of each time slot of said TD-SCDMA signal stops according to the voltage square wave signal that said TD-SCDMA conversion of signals becomes; Temporal information according to the initial sum of each time slot of said definite TD-SCDMA signal stops produces a Synchronization Control pulse signal.Realized TD-SCDMA signal, confirm the temporal information that the initial sum of each time slot of TD-SCDMA signal stops, thereby the adaptive Synchronization Control pulse signal that obtains has reduced technical costs according to said reception.
With reference to figure 5, be the structural representation of the device of acquiring TD-SCDMA sync signal in self-adaptive manner of the present invention, the device 6 of acquiring TD-SCDMA sync signal in self-adaptive manner of the present invention mainly comprises the system 61 of acquiring TD-SCDMA sync signal in self-adaptive manner.
The system 61 of the acquiring TD-SCDMA sync signal in self-adaptive manner that device 6 comprised of said acquiring TD-SCDMA sync signal in self-adaptive manner comprises receiver module, modular converter, processing module, generation module and control module for the system of the foregoing description with reference to figure 3 described acquiring TD-SCDMA sync signal in self-adaptive manner.The function of each module and structure are identical with above-mentioned Fig. 3 to Fig. 4, at this, repeat no more.
Embodiment of the present invention embodiment; Through receiving the TD-SCDMA signal; The said TD-SCDMA conversion of signals that receives is become voltage square wave signal,, confirm the temporal information that the initial sum of each time slot of said TD-SCDMA signal stops according to the voltage square wave signal that said TD-SCDMA conversion of signals becomes; Temporal information according to the initial sum of each time slot of said definite TD-SCDMA signal stops produces a Synchronization Control pulse signal.Realized TD-SCDMA signal, confirm the temporal information that the initial sum of each time slot of TD-SCDMA signal stops, thereby the adaptive Synchronization Control pulse signal that obtains has reduced technical costs according to said reception.
Above disclosedly be merely preferred embodiment of the present invention, can not limit the present invention's interest field certainly with this, the equivalent variations of therefore doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (6)
1. the method for an acquiring TD-SCDMA sync signal in self-adaptive manner is characterized in that, comprising:
Receive the TD-SCDMA signal;
The said TD-SCDMA conversion of signals that receives is become voltage square wave signal;
Write down each rising edge of said voltage square wave signal and the temporal information of trailing edge;
According to each continuous rising edge and the time difference between the trailing edge, confirm the temporal information that the initial sum of each time slot of said TD-SCDMA signal stops;
Temporal information according to the initial sum of each time slot of said definite TD-SCDMA signal stops produces a Synchronization Control pulse signal;
Said according to each continuous rising edge and the time difference between the trailing edge, confirm that the temporal information that the initial sum of each time slot of said TD-SCDMA signal stops specifically comprises:
When a continuous trailing edge that receives is 37.5us with time difference between the rising edge, when the time difference between this rising edge and the next trailing edge is 50us simultaneously, the zero-time that then definite said rising edge time is time slot DwPTS;
According to the initial temporal information of said definite time slot DwPTS, calculate the temporal information that the initial sum of each time slot of confirming said TD-SCDMA information stops.
2. the method for claim 1 is characterized in that, the temporal information that the initial sum of said each time slot according to said definite TD-SCDMA signal stops produces a Synchronization Control pulse signal and further comprises afterwards:
Control the microwave components of uplink and downlink according to the Synchronization Control pulse signal of said generation.
3. according to claim 1 or claim 2 method is characterized in that, further comprises:
Periodically obtain said TD-SCDMA signal, the said cycle is the duration 5ms of a frame TD-SCDMA signal.
4. the system of an acquiring TD-SCDMA sync signal in self-adaptive manner is characterized in that, comprising:
Receiver module is used to receive the TD-SCDMA signal;
Modular converter is used for the said TD-SCDMA conversion of signals that receives is become voltage square wave signal;
Record cell is used to write down each rising edge of said voltage square wave signal and the temporal information of trailing edge;
Positioning unit was used for according to each continuous rising edge and the time difference between the trailing edge, confirmed the temporal information that the initial sum of each time slot of said TD-SCDMA signal stops;
Generation module is used for the temporal information that the initial sum according to each time slot of said definite TD-SCDMA signal stops, and produces a Synchronization Control pulse signal;
Said according to each continuous rising edge and the time difference between the trailing edge, confirm that the temporal information that the initial sum of each time slot of said TD-SCDMA signal stops specifically comprises:
When a continuous trailing edge that receives is 37.5us with time difference between the rising edge, when the time difference between this rising edge and the next trailing edge is 50us simultaneously, the zero-time that then definite said rising edge time is time slot DwPTS;
According to the initial temporal information of said definite time slot DwPTS, calculate the temporal information that the initial sum of each time slot of confirming said TD-SCDMA information stops.
5. system as claimed in claim 4 is characterized in that, also comprises:
Control module is used for controlling according to the Synchronization Control pulse signal of said generation the microwave components of uplink and downlink.
6. the device of an acquiring TD-SCDMA sync signal in self-adaptive manner is characterized in that, said device comprises the system of claim 4 or 5 described acquiring TD-SCDMA sync signal in self-adaptive manner.
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| CN1988413A (en) * | 2005-12-19 | 2007-06-27 | 大唐移动通信设备有限公司 | Synchronous method and device for time division duplex communication system |
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