CN105636164B - A kind of cell searching system and method and mobile terminal - Google Patents
A kind of cell searching system and method and mobile terminal Download PDFInfo
- Publication number
- CN105636164B CN105636164B CN201410606584.7A CN201410606584A CN105636164B CN 105636164 B CN105636164 B CN 105636164B CN 201410606584 A CN201410606584 A CN 201410606584A CN 105636164 B CN105636164 B CN 105636164B
- Authority
- CN
- China
- Prior art keywords
- target cell
- decoding
- cell
- failure
- channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of cell searching system and method and mobile terminals, belong to mobile cell search technique field；System includes selecting unit；Decoding unit；First processing units and the second processing unit；Method includes: step S1, selection target cell；Step S2 is decoded P-CCPCH channel；Step S3 judges whether decoding succeeds according to decoding result: if failure, goes to step S6；Step S4 configures BCH channel according to decoding result；Step S5 receives the system information block of Target cell, with backed off after random；Step S6, the number for the carrying recorded decoding failure that adds up, and judge whether the maximum frequency of failure preset more than one: if being more than the maximum frequency of failure, forgo one's aim cell, and return step S1；If being less than the maximum frequency of failure, continue to read decoding result, and return step S3.The beneficial effect of above-mentioned technical proposal is: the process of accelerating cell searching, promotes cell searching efficiency.
Description
Technical field
The present invention relates to mobile cell search technique field more particularly to a kind of cell searching system and method and movements
Terminal.
Background technique
In the prior art, mobile terminal usually requires experience cell Whole frequency band measurement for the search of serving cell, determines
Target cell then obtains system-frame frequency displacement (System Frame Offset, SFO) and the system information block of Target cell
(System Information Block, SIB).In the prior art, the above process serially carries out, and SFO obtain and
SIB is received between two processes, it usually needs a series of linking treatment processes, including channel release and channel configuration waited
Journey, then for Whole frequency band measurement, needing fantasy reciprocally to execute, SFO is obtained and SIB is received, thus is inevitably held
Row is repeatedly connected treatment process such as channel release and channel configuration, then entire cell searching can expend the more time,
Reduce the efficiency of cell searching.
Summary of the invention
According to the above-mentioned problems in the prior art, now provide a kind of cell searching system and method and it is mobile eventually
End, it is intended to optimize cell search process, promote cell searching efficiency；
Above-mentioned technical proposal specifically includes:
A kind of cell searching system is suitable for mobile terminal；Wherein, including
Selecting unit, Yu Suoshu mobile terminal carries out Whole frequency band measurement when being in standby mode, and a cell is selected to make
For Target cell；
Decoding unit connects the selecting unit, is decoded for the Primary Common Control Physical Channel to the Target cell,
And export corresponding decoding result；
First processing units are separately connected the decoding unit and the selecting unit, record the decoding for cumulative
The number of unit continuous decoding failure, and in the number of decoding unit continuous decoding failure beyond a preset maximum failure
When number, controls the selecting unit and reselect the Target cell；
The second processing unit connects the decoding unit, for the decoding result according to successfully decoded to the mesh
It marks cell and carries out system-frame frequency displacement acquisition and system information block reception；
After described the second processing unit obtains system-frame frequency displacement success, according to the corresponding system-frame frequency shift information of acquisition,
Configuration carries out the acquisition process of system information block.
Preferably, the cell searching system, wherein further include:
Synchronization unit is connected between the selecting unit and the decoding unit, for configuring the Target cell
Primary synchronization channel, to realize the slot synchronization of the physical channel of the mobile terminal and the Target cell.
Preferably, cell searching system, wherein the decoding unit is small to the target every preset interval time
The Primary Common Control Physical Channel in area is decoded, to export corresponding decoding result.
Preferably, cell searching system, wherein include: in described the second processing unit
Frame frequency, which moves, obtains module, for obtaining institute according to the decoding result exported after the decoding unit successfully decoded
The System Frame Number of Target cell is stated, and obtains the system-frame frequency shift information of the corresponding Target cell according to the System Frame Number；
Channel configuration module, connects the frame frequency and moves and obtain module, for the system-frame frequency shift information according to acquisition,
Configure the location information of the common broadcast channel of the Target cell；
System information block receiving module connects the channel configuration module, for the public affairs by having configured completion
Broadcast channel receives the system information block of the Target cell altogether.
Preferably, cell searching system, wherein demodulated by the decoding result that the decoding unit successfully decoded obtains
Obtain the broadcast message that the Target cell issues；
The frame frequency, which moves, obtains module according to the System Frame Number of the Target cell obtained in the broadcast message, with
And the local zone time of the mobile terminal, the corresponding system-frame frequency shift information is calculated.
Preferably, cell searching system, wherein the channel configuration module further comprises:
Start arrangement components, for the system-frame frequency shift information according to the correspondence Target cell, determines that system is believed
Cease the Startup time of block receive process；
Be arranged in order component, for the System Frame Number according to the correspondence Target cell, determines system information block
Reception sequence.
Preferably, cell searching system, wherein be suitable for WCDMA communication system.
A kind of small region search method is suitable for mobile terminal；Wherein, comprising:
Step S1 carries out Whole frequency band measurement, to select a cell as Target cell；
Step S2 is decoded the Primary Common Control Physical Channel of the Target cell, and exports corresponding decoding result；
Step S3 judges whether this decoding succeeds according to the decoding result:
If this decoding failure, goes to step S6；
Step S4 configures the location information of the common broadcast channel of the Target cell according to the decoding result；
Step S5 receives the system information block of the Target cell by the configured common broadcast channel,
With backed off after random；
Step S6, the number for the carrying recorded decoding failure that adds up, and judge whether the number of decoding failure is preset more than one most
Fiasco number:
If the number of decoding failure is more than the maximum frequency of failure, the survey to the current Target cell is abandoned
Amount, and return to the step S1；
If the number of decoding failure is less than the maximum frequency of failure, continue to read the decoding result, and return
The step S3.
Preferably, small region search method, wherein Yu Suoshu mobile terminal executes the step when being under standby mode
S1；
Preferably, small region search method, wherein execute between the step S2, configure the Target cell first
Primary synchronization channel, to realize the slot synchronization of the physical channel of the mobile terminal and the Target cell.
Preferably, small region search method, wherein small to the target with preset interval time in the step S2
The Primary Common Control Physical Channel in area is decoded, and exports the corresponding decoding result.
Preferably, small region search method, wherein in the step S2, the mesh is demodulated by the decoding result
The broadcast message that mark cell issues；
In the step S3, decoding, which unsuccessfully indicates not demodulating, obtains the broadcast message that the Target cell issues.
Preferably, small region search method, wherein the step S4 is specifically included:
Step S41 obtains the System Frame Number of the Target cell by the broadcast message that demodulation obtains；
Step S42 obtains the system-frame frequency shift information of the Target cell according to the System Frame Number；
Step S43, calculates according to the system-frame frequency shift information and the system information block that adjusts the Target cell opens
The dynamic moment, and according to the System Frame Number, connecing for the reception process of the system information block of the Target cell is calculated and determined
Receipts sequence.
Preferably, small region search method, wherein in the step S42, according to the System Frame Number and the shifting
The ontology time of dynamic terminal, the system-frame frequency shift information of the Target cell is calculated.
Preferably, small region search method, wherein be suitable for WCDMA communication system.
A kind of mobile terminal, wherein including above-mentioned cell searching system.
A kind of mobile terminal, wherein use above-mentioned small region search method.
The beneficial effect of above-mentioned technical proposal is: shortening cell search process, to the linking treatment process in cell searching
Systematic optimization is carried out, the efficiency of cell searching is promoted.Entire technical solution realization is relatively simple, and cost of implementation is lower.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of cell searching system in preferred embodiment of the invention；
Fig. 2-3 is a kind of flow diagram of small region search method in preferred embodiment of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without creative labor it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be further explained below with reference to the attached drawings and specific examples, but not as the limitation of the invention.
In the prior art, the process that mobile terminal carries out selection and web search to cell generally includes serially to carry out down
State process:
Firstly, it is necessary to carry out the Whole frequency band measurement of cell, it is small that one of cell is selected as target to be measured
Area；
Then, the series processes such as system-frame frequency displacement confirmation and system information block reception are carried out to Target cell.
In the prior art, the scene according to cell selection or web search is different, it may be necessary to by repeatedly measuring and searching
Rope, therefore the above process may move in circles progress.
And above system frame frequency is moved between confirmation and received two processes of system information block and is independent from each other, it is existing
In technology, need to carry out corresponding linking treatment process between the two processes, such as confirm it executing system-frame frequency displacement
Afterwards, channel release is carried out first and the operation such as reconfigure channel, then start the reception for executing system information block again；And
Mobile terminal move in circles carry out cell selection and web search during, above-mentioned linking treatment process can be repeated, from
And the time that cell selection and web search are expended lengthens, to reduce the effect of entire cell selection and network search procedure
Rate.
In preferred embodiment of the invention, it is based on the above-mentioned problems in the prior art, a kind of cell is now provided and is searched
Cable system, the cell searching system are suitable for mobile terminal, and specific structure is as shown in Figure 1, comprising:
Selecting unit 1.In preferred embodiment of the invention, when mobile terminal is under standby mode, selecting unit 1 into
The Whole frequency band of row cell measures, and selects a cell as Target cell by measurement.In preferred embodiment of the invention, quilt
The cell for being selected as Target cell is next to carry out handling targeted cell in the present invention.
Decoding unit 2 connects above-mentioned selecting unit 1.In preferred embodiment of the invention, 1 selected target of selecting unit
After cell, Primary Common Control Physical Channel (Primary Common Control of the decoding unit 2 to the Target cell
Physical Channel, P-CCPCH) it is decoded, and obtain corresponding decoding result.
In preferred embodiment of the invention, decoding unit 2 is decoded according to P-CCPCH channel, is somebody's turn to do with demodulation
The broadcast message that Target cell issues；In other words, in preferred embodiment of the invention, when the demodulation of decoding unit 2 obtains target
The broadcast message that cell issues, then it represents that demodulate successfully, conversely, indicating demodulation failure.In preferred embodiment of the invention, lead to
System Frame Number information (the System of corresponding Target cell can be obtained by crossing the broadcast message that the Target cell that demodulation obtains issues
Frame Number, SFN).
In preferred embodiment of the invention, due to that can not know timing (timing) information of P-CCPCH channel in advance,
Therefore, decoding unit 2 carries out the decoding of P-CCPCH channel every preset interval time, and by detection decoding result come
The boundary information of P-CCPCH channel is judged, to obtain corresponding decoding result.In other words, preferable implementation of the invention
In example, decoding unit 2 exports a corresponding decoding result every preset interval time.
In preferred embodiment of the invention, above-mentioned preset interval time is 10ms, i.e., preferable implementation of the invention
In example, decoding unit 2 carries out the decoding of a P-CCPCH channel every 10ms.
In preferred embodiment of the invention, above-mentioned cell searching system further include:
Synchronization unit 3 is connected between above-mentioned selecting unit 1 and decoding unit 2.In preferred embodiment of the invention,
After selecting unit 1 selectes a Target cell, synchronization unit 3 configures the primary synchronization channel of the Target cell, mobile whole to realize
The slot synchronization at end and Target cell.
In other words, in preferred embodiment of the invention, selecting unit 1 determines selection one by the Whole frequency band measurement of cell
A cell configures the primary synchronization channel of Target cell as Target cell, synchronization unit 3, and subsequent decoding unit 2 is to mesh
The P-CCPCH channel of mark cell is decoded, and exports corresponding decoding result.
In preferred embodiment of the invention, above-mentioned cell searching system further include:
First processing units 4 are separately connected above-mentioned selecting unit 1 and decoding unit 2.Preferred embodiment of the invention
In, first processing units 4 are used to monitor the decoding result of the output of decoding unit 2, and accumulation calculating decoding unit 2 decodes failure
Number.
Specifically, in preferred embodiment of the invention, a counting module 41 is set in first processing units 4, it should
An initial zero position is preset in counting module 41, when the decoding result that first processing units 4 monitor the output of decoding unit 2 indicates
When decoding failure, then count is incremented in the counting module 41.In preferred embodiment of the invention, since decoding unit 2 is every pre-
If interval time (can be 10ms) decoding it is primary therefore also correspondingly primary every preset interval time (10ms) output
Decoding result；Then first processing units 4 equally can be every the solution of preset interval time (10ms) monitoring primary decoding unit 2
Code is as a result, the number that simultaneously 2 continuous decoding of accumulated counts decoding unit fails.Since the record that adds up in first processing units 4 is
The number of 2 continuous decoding of decoding unit failure, then when the decoding result that first processing units 4 monitor the output of decoding unit 2 is
(corresponding SFN information is obtained) when successfully decoded, and first processing units 4 will indicate the 2 continuous decoding frequency of failure of decoding unit
Counting reset, that is, by counting module 41 counting reset.
In preferred embodiment of the invention, be preset in first processing units 4 decoding failure maximum times, then when
When counting in counting module 41 is more than above-mentioned preset maximum times, it is default to indicate that the number of continuous decoding failure alreadys exceed
Tolerable range, therefore 4 control selections unit 1 of first processing units re-measures and selects new cell small as target
Area abandons the currently Target cell that is measuring, then select another cell as Target cell and attempt progress SFO and obtain
It takes and the received process of SID.
In preferred embodiment of the invention, in above-mentioned cell searching system further include:
The second processing unit 5 connects above-mentioned decoding unit 3.In preferred embodiment of the invention, for according to above-mentioned solution
The decoding result for the expression successfully decoded that code unit 2 exports obtains corresponding SFN information, and according to SFN information to Target cell
It carries out system-frame frequency displacement acquisition and system information block receives.
In preferred embodiment of the invention, the second processing unit 5 further comprises:
Frame frequency, which moves, obtains module 51.In preferred embodiment of the invention, frame frequency, which moves, obtains module 51 for according to above-mentioned
The decoding result of successfully decoded obtains the SFN information of Target cell, and according to the system-frame frequency displacement of SFN acquisition of information Target cell
Information (SFO information).
Specifically, in preferred embodiment of the invention, after frame frequency moves acquisition module 51 according to 2 successfully decoded of decoding unit
The decoding result of output obtains corresponding SFN information from the broadcast message that the Target cell demodulated issues, while frame frequency moves
Obtain the local zone time that module 51 obtains mobile terminal, subsequent frame frequency, which moves, obtains module 51 according to SFN information and mobile terminal
The SFO information of current Target cell can be calculated in local zone time.
In preferred embodiment of the invention, the second processing unit 5 further include:
Channel configuration module 52 connects above-mentioned frame frequency and moves acquisition module 51.In preferred embodiment of the invention, channel is matched
It sets module 52 and the acquisition acquisition of module 51 is moved according to the SFN information obtained after above-mentioned 2 successfully decoded of decoding unit and above-mentioned frame frequency
SFO information, the common broadcast channel (Broadcast Channel, BCH) of Target cell is configured.Specifically, channel
Configuration module 52 is used to configure the location information of BCH channel.
In preferred embodiment of the invention, above-mentioned channel configuration module 52 further comprises:
Start arrangement components 521.In preferred embodiment of the invention, starting arrangement components 521 are moved according to above-mentioned frame frequency
The SFO information that module 51 obtains is obtained, the Startup time of SIB receive process is calculated and determined；
Be arranged in order component 522.In preferred embodiment of the invention, after obtaining the success of SFO information, be arranged in order portion
Part 522 calculates and adjusts the received sequence of SIB according to the SFN information obtained after 2 successfully decoded of decoding unit, then begin to
SIB receive process are sequentially carried out according to the sequence being adjusted.
Therefore, in preferred embodiment of the invention, when starting of the channel configuration module 52 by configuring SIB receive process
It carves and the received sequence of SIB configures the location information of BCH channel.
In preferred embodiment of the invention, in above-mentioned the second processing unit 5 further include:
System information block receiving module 53 connects above-mentioned channel configuration module 52.In preferred embodiment of the invention, when
After the location information of BCH channel is completed in configuration, system information block receiving module 53 connects according to the BCH channel for having configured completion
Receive SIB information.Specifically, in preferred embodiment of the invention, system information block receiving module 53 is in above-mentioned channel configuration mould
The Startup time that the configuration of block 52 is completed, the reception sequence completed with the configuration of above-mentioned channel configuration module 52, is received by BCH channel
SIB information.
In preferred embodiment of the invention, above-mentioned cell searching system is suitable for WCDMA communication system.
In conclusion it is an object of the present invention to calculating decoding failure when being decoded first to a Target cell
Number, and directly abandon configuring the synchronous of current goal cell when more than a preset maximum times, and it is new to turn to selection
Target cell, thus be avoided that on a Target cell due to decoding failure and fall into the process of endless loop, improve
The efficiency of cell selection and network search procedure；
Meanwhile in technical solution of the present invention, after executing SFO acquisition process, directly according to the SFO information of acquisition and
SFN information configures the location information of BCH channel, so as to directly start to carry out according to the BCH channel that configuration is completed
The receive process of SIB optimize the linking treatment process between SFO acquisition and SIB two processes of reception, reduce cell SFO and obtain
The BCH channel configuration process before channel release process and SIB reception after taking, accelerates cell selection and web search
Process shortens flow time.
In preferred embodiment of the invention, it is based on above-mentioned cell searching system, a kind of small region search method is provided, is applicable in
In mobile terminal, specifically as shown in Fig. 2, step includes:
Step S1 carries out Whole frequency band measurement, to select a cell as Target cell；
In preferred embodiment of the invention, above-mentioned Whole frequency band measurement is carried out when mobile terminal enters under standby mode,
And determine a corresponding Target cell.
Step S2 is decoded the Primary Common Control Physical Channel of Target cell, and exports corresponding decoding result；
In preferred embodiment of the invention, if successfully decoded, the decoding result exported is to demodulate under Target cell
The broadcast message of hair can then receive the SFN information of Target cell from the broadcast message demodulated；If decoding failure, defeated
Decoding result out indicates that the broadcast message of Target cell can not be demodulated.
Therefore, in preferred embodiment of the invention, by judging decoding result, it can judge decoding whether at
Function.
In preferred embodiment of the invention, in above-mentioned steps S2, every preset interval time to main common control channel
Road (P-CCPCH channel) is once decoded, therefore correspondingly exports a decoding result every above-mentioned interval time；Then only need
Decoding result is monitored every above-mentioned interval time, that is, may know that whether this decoding succeeds.
In preferred embodiment of the invention, above-mentioned preset interval time is 10ms.
In preferred embodiment of the invention, before executing above-mentioned steps S2, the master for configuring the Target cell first is same
Channel is walked, to realize the slot synchronization of the physical channel of mobile terminal and Target cell；Then P-CCPCH channel is solved again
Code.
Step S3 judges whether this decoding succeeds according to decoding result:
If this decoding failure, goes to step S6；
Step S4 configures the location information of the common broadcast channel of Target cell according to decoding result；
In preferred embodiment of the invention, the decoding result in above-mentioned steps S4 is the decoding result after successfully decoded,
In other words, decoding result expression can demodulate the broadcast message that Target cell issues, and can disappear from the broadcast demodulated
The SFN information of Target cell is received in breath.
Above-mentioned steps S4 can be described below.
Step S5 receives the system information block of Target cell, with retrogressing by configured common broadcast channel
Out；
In preferred embodiment of the invention, after the configuration in above-mentioned steps S4, so that it may start SIB and receive
Journey, the BCH channel by configuring completion receive SIB information.
Step S6, the number for the carrying recorded decoding failure that adds up, and judge whether the number of decoding failure is preset more than one most
Fiasco number:
If the number of decoding failure is more than the maximum frequency of failure, the measurement to current Target cell is abandoned, and return
Step S1；
If the number of decoding failure is less than the maximum frequency of failure, continue to read decoding result, and return step S3.
In preferred embodiment of the invention, in above-mentioned steps S3, an initial zero position is preset first, if above-mentioned steps S3
In, when judging that this decoding result indicates decoding failure (can not obtain corresponding SFN information), then it represents that decode the meter of failure
Number plus 1, and when certain once judges decoding result for successfully decoded, then step S4- step S5 is directly executed, with backed off after random；This
When, the counting for indicating the decoding frequency of failure is reset.
In preferred embodiment of the invention, the maximum times of also default continuous decoding failure.Of the invention is preferable
Embodiment in, when indicate decoding the frequency of failure counting be more than above-mentioned preset maximum times when, then thought at this time to current
The decoding of Target cell can not succeed, and be further continued for down that the process of entire cell selection and web search may be delayed, therefore put
The measurement to current goal cell is abandoned, then returns to above-mentioned steps S1, that is, re-starts Whole frequency band measurement, and reselect one
New cell is as current Target cell.
In preferred embodiment of the invention, in above-mentioned steps S3, when judging this successfully decoded, it will indicate that decoding is lost
The counting lost is reset.
In preferred embodiment of the invention, as shown in figure 3, above-mentioned steps S4 is specifically included:
Step S41 obtains the System Frame Number of Target cell by the broadcast message that demodulation obtains；
In preferred embodiment of the invention, decoding P-CCPCH channel success, with demodulation obtain Target cell issue it is wide
Broadcast message；Then pass through the SFN information of broadcast message reception to Target cell.
Step S42 obtains the system-frame frequency shift information of Target cell according to System Frame Number；
In preferred embodiment of the invention, according to above-mentioned SFN information and the local zone time of mobile terminal, Ke Yiji
Calculation obtains the SFO information of Target cell.
Step S43 calculates according to system-frame frequency shift information and adjusts the Startup time of the system information block of Target cell, with
And according to System Frame Number, the reception sequence of the reception process of the system information block of Target cell is calculated and determined.
In preferred embodiment of the invention, the SIB that Target cell can be calculated according to above-mentioned SFO information is received
Startup time；And
According to above-mentioned SFN information, the SIB reception sequence of Target cell can be calculated.
Then in preferred embodiment of the invention, according to determining Startup time and reception sequence is calculated, it can configure
At the location information of BCH channel, to carry out SIB receive process by the BCH channel for configuring completion.
In preferred embodiment of the invention, above-mentioned small region search method is suitable for WCDMA communication system.
In preferred embodiment of the invention, a kind of mobile terminal is also provided, including above-mentioned cell searching system.
In preferred embodiment of the invention, a kind of mobile terminal is also provided, wherein using above-mentioned small region search method.
The foregoing is merely preferred embodiments of the present invention, are not intended to limit embodiments of the present invention and protection model
It encloses, to those skilled in the art, should can appreciate that all with made by description of the invention and diagramatic content
Equivalent replacement and obviously change obtained scheme, should all be included within the scope of the present invention.
Claims (17)
1. a kind of cell searching system is suitable for mobile terminal；It is characterised in that it includes
Selecting unit, Yu Suoshu mobile terminal carries out Whole frequency band measurement when being in standby mode, and selects a cell as mesh
Mark cell；
Decoding unit connects the selecting unit, is decoded for the Primary Common Control Physical Channel to the Target cell, and defeated
Corresponding decoding result out；
First processing units are separately connected the decoding unit and the selecting unit, record the decoding unit for cumulative
The number of continuous decoding failure, and in the number of decoding unit continuous decoding failure beyond a preset maximum frequency of failure
When, it controls the selecting unit and reselects the Target cell；
The second processing unit connects the decoding unit, for small to the target according to the decoding result of successfully decoded
Area carries out system-frame frequency displacement acquisition and system information block receives；
After described the second processing unit obtains system-frame frequency displacement success, according to the corresponding system-frame frequency shift information of acquisition, configuration
Carry out the acquisition process of system information block.
2. cell searching system as described in claim 1, which is characterized in that further include:
Synchronization unit is connected between the selecting unit and the decoding unit, and the master for configuring the Target cell is same
Channel is walked, to realize the slot synchronization of the physical channel of the mobile terminal and the Target cell.
3. cell searching system as described in claim 1, which is characterized in that the decoding unit is every preset interval time
The Primary Common Control Physical Channel of the Target cell is decoded, to export corresponding decoding result.
4. cell searching system as described in claim 1, which is characterized in that include: in described the second processing unit
Frame frequency, which moves, obtains module, for obtaining the mesh according to the decoding result exported after the decoding unit successfully decoded
The System Frame Number of cell is marked, and obtains the system-frame frequency shift information of the corresponding Target cell according to the System Frame Number；
Channel configuration module connects the frame frequency and moves acquisition module, for the system-frame frequency shift information according to acquisition, configuration
The location information of the common broadcast channel of the Target cell；
System information block receiving module connects the channel configuration module, for by having configured the described public wide of completion
Broadcast the system information block that channel receives the Target cell.
5. cell searching system as claimed in claim 4, which is characterized in that obtained by the decoding unit successfully decoded
Decoding result demodulates to obtain the broadcast message that the Target cell issues；
The frame frequency moves the System Frame Number for obtaining module according to the Target cell obtained in the broadcast message, Yi Jisuo
The corresponding system-frame frequency shift information is calculated in the local zone time for stating mobile terminal.
6. cell searching system as claimed in claim 5, which is characterized in that the channel configuration module further comprises:
Start arrangement components and determines system information block for the system-frame frequency shift information according to the correspondence Target cell
The Startup time of receive process；
Be arranged in order component, for the System Frame Number according to the correspondence Target cell, determines the reception of system information block
Sequentially.
7. cell searching system as described in claim 1, which is characterized in that be suitable for WCDMA communication system.
8. a kind of small region search method is suitable for mobile terminal；It is characterised by comprising:
Step S1 carries out Whole frequency band measurement, to select a cell as Target cell；
Step S2 is decoded the Primary Common Control Physical Channel of the Target cell, and exports corresponding decoding result；
Step S3 judges whether this decoding succeeds according to the decoding result:
If this decoding failure, goes to step S6；
Step S4 configures the location information of the common broadcast channel of the Target cell according to the decoding result；
Step S5 receives the system information block of the Target cell, then by the configured common broadcast channel
It exits；
Step S6, the number for the carrying recorded decoding failure that adds up, and judge that the number of decoding failure maximum whether preset more than one is lost
Lose number:
If the number of decoding failure is more than the maximum frequency of failure, the measurement to the current Target cell is abandoned, and
Return to the step S1；
If the number of decoding failure is less than the maximum frequency of failure, continue to read the decoding result, and described in return
Step S3.
9. small region search method as claimed in claim 8, which is characterized in that when Yu Suoshu mobile terminal is under standby mode
Execute the step S1；
10. small region search method as claimed in claim 8, which is characterized in that execute between the step S2, first configuration institute
The primary synchronization channel of Target cell is stated, to realize the slot synchronization of the physical channel of the mobile terminal and the Target cell.
11. small region search method as claimed in claim 8, which is characterized in that in the step S2, with preset interval time
The Primary Common Control Physical Channel of the Target cell is decoded, and exports the corresponding decoding result.
12. small region search method as claimed in claim 8, which is characterized in that in the step S2, pass through the decoding result
Demodulate the broadcast message that the Target cell issues；
In the step S3, decoding, which unsuccessfully indicates not demodulating, obtains the broadcast message that the Target cell issues.
13. small region search method as claimed in claim 12, which is characterized in that the step S4 is specifically included:
Step S41 obtains the System Frame Number of the Target cell by the broadcast message that demodulation obtains；
Step S42 obtains the system-frame frequency shift information of the Target cell according to the System Frame Number；
Step S43 is calculated according to the system-frame frequency shift information and when the starting of the system information block that adjusts the Target cell
It carves, and according to the System Frame Number, the reception that the receive process of the system information block of the Target cell are calculated and determined is suitable
Sequence.
14. small region search method as claimed in claim 13, which is characterized in that in the step S42, according to the system-frame
Number and the mobile terminal the ontology time, the system-frame frequency shift information of the Target cell is calculated.
15. small region search method as claimed in claim 8, which is characterized in that be suitable for WCDMA communication system.
16. a kind of mobile terminal, which is characterized in that including the cell searching system as described in any one of claim 1-7.
17. a kind of mobile terminal, which is characterized in that using the cell searching side as described in any one of claim 8-15
Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410606584.7A CN105636164B (en) | 2014-10-31 | 2014-10-31 | A kind of cell searching system and method and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410606584.7A CN105636164B (en) | 2014-10-31 | 2014-10-31 | A kind of cell searching system and method and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105636164A CN105636164A (en) | 2016-06-01 |
| CN105636164B true CN105636164B (en) | 2019-03-26 |
Family
ID=56050522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410606584.7A Active CN105636164B (en) | 2014-10-31 | 2014-10-31 | A kind of cell searching system and method and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105636164B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101371454A (en) * | 2006-01-11 | 2009-02-18 | 日本电气株式会社 | CDMA receiving device and SFN detecting method used for the same |
| CN102083002A (en) * | 2010-03-24 | 2011-06-01 | 大唐移动通信设备有限公司 | System, method and device for controlling reported broadcast channel information |
| CN103582074A (en) * | 2012-08-02 | 2014-02-12 | 中国移动通信集团广东有限公司 | Multimode mobile terminal and cell search method and device thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100464351B1 (en) * | 2001-10-20 | 2005-01-03 | 삼성전자주식회사 | Apparatus and method for paging scheme with additional carrie for multimedia broadcasting and multicasting service in w-cdma communication system |
-
2014
- 2014-10-31 CN CN201410606584.7A patent/CN105636164B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101371454A (en) * | 2006-01-11 | 2009-02-18 | 日本电气株式会社 | CDMA receiving device and SFN detecting method used for the same |
| CN102083002A (en) * | 2010-03-24 | 2011-06-01 | 大唐移动通信设备有限公司 | System, method and device for controlling reported broadcast channel information |
| CN103582074A (en) * | 2012-08-02 | 2014-02-12 | 中国移动通信集团广东有限公司 | Multimode mobile terminal and cell search method and device thereof |
Non-Patent Citations (1)
| Title |
|---|
| WCDMA系统SIB块解码算法分析与优化;陈勇;赫慧婷;《电子测试》;20110106;31-35 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105636164A (en) | 2016-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20190261297A1 (en) | Information transmission method, base station and terminal | |
| CN102870451B (en) | For activating method and the infrastructure of telecommunication of inertia community | |
| KR20010031231A (en) | Method and arrangement for improved utilisation of control channel resources | |
| RU2012151137A (en) | DEVICE AND METHOD FOR MONITORING TIME OF CHANGING THE CONFIGURATION MODE OF A WIRELESS DEVICE | |
| US9942009B2 (en) | Measurement gap configuration | |
| CN105281884B (en) | A kind of node time synchronous method in network without center | |
| US8842612B2 (en) | Methods and apparatus for service acquisition in a multi-frequency network | |
| CN103597882B (en) | Quickly reselecting between different radio access technologies network | |
| CN103634815B (en) | Communication device and method for detecting a radio signal | |
| EP2456106B1 (en) | Cell search method for a downlink channel of an OFDMA transmission system | |
| CN107070498A (en) | A kind of multistage MANET method for synchronizing time of the sub-clustering based on frequency hopping TDMA system | |
| US20050202813A1 (en) | Mobile radio terminal apparatus | |
| CN104704893B (en) | Frequency correction and boundary of time slot detection | |
| CN109392040A (en) | The method of user equipment and its progress cell reselection, computer-readable medium | |
| CN106535138A (en) | Synchronization method and synchronization device for time division multiple access (TDMA) self-organizing network | |
| JP6180217B2 (en) | Wireless communication system | |
| CN105636164B (en) | A kind of cell searching system and method and mobile terminal | |
| CN109587786A (en) | Detect the method, apparatus and user equipment of TRS | |
| CN106559776B (en) | Method and device for updating system information in LTE (Long term evolution) system | |
| CN106550434B (en) | Mobile terminal and its method for detecting paging message | |
| CN105282840B (en) | A kind of method of time synchronization between mobile Ad hoc network interior joint | |
| CN109150335A (en) | The method and device that target terminal uplink signal strength measures under a kind of complex environment | |
| CN107911846A (en) | A kind of network selecting method of micropower wireless network child node | |
| KR102486342B1 (en) | Method and apparatus for mobile operation on 5g system | |
| JP5576495B2 (en) | Frequency search method and apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170607 Address after: 201203 Shanghai city Zuchongzhi road Pudong New Area Zhangjiang hi tech park, Spreadtrum Center Building 1, Lane 2288 Applicant after: Zhanxun Communication (Shanghai) Co., Ltd. Address before: 201399 Pudong New Area Nanhui Industrial Park Road, No. 451 middle Park, building No. 11 Applicant before: Shanghai Mobilepeak Semiconductor Co., Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |