CN101309493B - Adaptive synchronization and asynchronization process method and apparatus - Google Patents
Adaptive synchronization and asynchronization process method and apparatus Download PDFInfo
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- CN101309493B CN101309493B CN2008101257559A CN200810125755A CN101309493B CN 101309493 B CN101309493 B CN 101309493B CN 2008101257559 A CN2008101257559 A CN 2008101257559A CN 200810125755 A CN200810125755 A CN 200810125755A CN 101309493 B CN101309493 B CN 101309493B
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Abstract
The embodiment of the invention provides a self-adaptive synchronous and desynchronizing processing method in the technical field of communication. The method comprises the following steps: a measured value of the channel quality is acquired; the threshold value of a timer used for the synchronous and desynchronizing processing is configured according to the measured value of the channel quality; the timer is started, and the synchronous and desynchronizing processing operation is carried out by using the threshold value. The embodiment of the invention also provides a self-adaptive synchronous and desynchronizing processing device. In the embodiment of the invention, the threshold value of the timer can be configured during the synchronous and desynchronizing processing according to the measured value of the channel quality, the self-adaptive adjustment of the synchronous and desynchronizing processing time can be realized along with the channel conditions, and thereby the synchronous and desynchronizing processing efficiency can be improved.
Description
Technical field
The present invention relates to communication technical field, relate in particular to synchronous asynchronization process method of a kind of self adaptation and device.
Background technology
In the WCDMA wireless communication systems such as (WCDMA, Wideband Code Division Multiple Access), after Radio Link is set up, need to detect the state of Radio Link.Radio Link has synchronously, the step-out two states.The effect that detects wireless chaining status is: the Node-B side will trigger corresponding wireless link recovery according to the state of link or Radio Link Failure is handled; And subscriber equipment (UE, User Equipment) side will utilize synchronous, the desynchronizing state information of Radio Link to weigh the state of physical channel, and then determines whether to start the step-out processing.In the WCDMA system, the every frame of physical layer detects the synchronous regime of Radio Link, and reports high level through primitive CPHY-Sync-IND and CPHY-Out-of-Sync-IND, accomplishes the corresponding synchronous step-out by high level and handles.The efficient synchronous and the step-out handling process of Radio Link has very big influence for systematic function.
In the WCDMA communication system, existing synchronously, the step-out handling process is generally: after Radio Link is set up, at first judge whether to receive continuously that through the N313 counter " step-out " that N313 physical layer reports indicate, if then start the T313 timer; If before the T313 timer expired, received N315 time " synchronously " indication continuously, think then to be still synchronous regime that the T313 timer resets; If do not receive N315 time " synchronously " indication continuously, then start the T315 timer, start the candidate Cell searching simultaneously; If before the T315 timer expired, search for successfully, then start cell update (CellUpdate), new Radio Link is set up in indication according to network side, and the T315 timer resets simultaneously; If successfully do not search the sub-district before the T315 timer expired, then discharge Radio Link, carry out under the Idle state (IDLE) that net is searched in the candidate sub-district or full range is searched net.
In the invention process, the inventor finds to exist at least in the prior art following shortcoming:
N313, T313, N315, T315 parameter are by the unified configuration of network side, and all UE of a sub-district only use the fixing parameter of a cover.Therefore, for the wireless fading channel of real-time change, these fixing parameters can not be done adaptive adjustment according to the variation of channel condition, will cause synchronous and the decline of step-out treatment effeciency, thereby influence the performance of whole communication system.For example, under the very poor situation of channel condition,, can cause the waits for too long of step-out determining if the parameter configuration of time register is excessive.
Summary of the invention
The embodiment of the invention provides synchronous asynchronization process method of a kind of self adaptation and device, thereby improves synchronous and step-out treatment effeciency.
The embodiment of the invention realizes through following technical scheme:
The embodiment of the invention provides a kind of self adaptation synchronous asynchronization process method, comprising:
Obtain channel quality measurements;
Handle the timer threshold value of using according to said channel quality measurements configuration synchronization step-out;
Start timer, utilize said threshold value to carry out synchronous step-out and handle operation.
The embodiment of the invention provides a kind of self adaptation synchronous step-out processing unit, comprising:
Acquiring unit is used to obtain channel quality measurements, and transmits this channel quality measurements;
Dispensing unit is used to receive the channel quality measurements that said acquiring unit transmits, the threshold value of timer during according to this channel quality measurements configuration synchronization and step-out processing;
Synchronous step-out processing unit is used for carrying out synchronous step-out according to the threshold value of the timer of said dispensing unit configuration and handles operation.
Technical scheme by the invention described above embodiment provides can be found out; Timer threshold value when the embodiment of the invention can be handled according to channel quality measurements configuration synchronization and step-out; Realize synchronously with the step-out processing time can the self adaptation adjustment with the channel condition, improve synchronous and step-out treatment effeciency.
Description of drawings
Fig. 1 is the synchronous asynchronization process method operational flowchart of the embodiment of the invention one self adaptation;
Fig. 2 is the synchronous step-out processing unit of the embodiment of the invention three a self adaptations module diagram.
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.
The threshold value of timer when the embodiment of the invention is adjusted synchronous and step-out processing according to the current channel quality measurements self adaptation of UE, thus synchronous and step-out treatment effeciency improved.The factor that influences channel quality comprises: UE present position, translational speed, signal to noise ratio height, and channel fade conditions etc.
The embodiment of the invention one provides a kind of self adaptation synchronous asynchronization process method, is illustrated in figure 1 as this method operational flowchart, can comprise the steps:
Step 1: " step-out " indication that judges whether to receive continuously N313 time physical layer reports;
After Radio Link is set up, be " step-out " indication counter of receiving at first through the N313 counter, judge whether " step-out " indication of receiving that continuously N313 time physical layer reports; If no, then continue to detect;
If receive " step-out " indication that N313 time physical layer reports continuously, then execution in step 2;
Step 2: according to the threshold value of up-to-date channel quality measurements configuration T313 timer;
Detect channel quality by UE, before each startup T313 timer, according to the threshold value of current channel quality measurements configuration with the T313 timer of current channel quality coupling;
Can be with reference to following rule during this T313 timer threshold value in configuration: satisfy predetermined threshold in channel quality measurements, thereby show that when channel condition was good, the threshold value that then disposes the T313 timer was relatively large, so that reserve sufficient lock in time; If channel quality measurements satisfies predetermined threshold, thereby when showing bad channel conditions, the threshold value that then disposes the T313 timer is less relatively, so that be difficult in time to confirm step-out information under the synchronous condition, and starts the candidate Cell searching.
In order to simplify realization flow, can channel quality measurements be divided into several intervals according to size order, each interval corresponding respectively one group synchronously and the threshold value (threshold value that can comprise the timer that all need dispose) of the timer that uses during step-out.Which interval is the up-to-date channel quality measurements that obtains drop on, and just uses that interval corresponding timer threshold value.Certainly, one skilled in the art will appreciate that the scheme of the threshold value of the timer that this uses when confirming synchronous and step-out is one embodiment of the present of invention, the method for the threshold value of the timer that the present invention uses when confirming synchronous and step-out is not limited thereto.
Described channel quality measurements can be CPICH Common Pilot Channel (CPICH; Common PilotChannel) received signal code power (RSCP; Received signal code power) ratio (Ec/Io of value, each chip received energy and total received power spectrum density; The ratio of thereceived energy per chip to the total received power spectral density), signal to noise ratio (SNR, Signal to noise ratio) etc. can reflect any one of measured value of channel condition.
After step 3:T313 timer threshold settings is accomplished, start the T313 timer;
Step 4: before the T313 timer expired, judge whether to receive continuously N315 time " synchronously " indication;
If before the T313 timer expired, received N315 time " synchronously " indication continuously, then think to be still synchronous regime, then execution in step 5, and promptly the T313 timer resets, and turns back to step 1 afterwards;
If before 313 timer expireds, do not receive N315 time " synchronously " indication continuously, then execution in step 6;
Step 6: according to the threshold value of up-to-date channel quality measurements configuration T315 timer;
The method of its configuration T315 timer threshold value is with the method for configuration T313 timer.
Step 7: after said T315 threshold value is provided with completion, start the T315 timer, start the candidate Cell searching simultaneously;
Step 8: judge before the T315 timer expired, whether to search the sub-district;
If before the T315 timer expired, successfully search the sub-district, then execution in step 9; Otherwise execution in step 10;
Step 9: start cell update (Cell Update), new Radio Link is set up in indication according to network side, and the T315 timer resets simultaneously;
Step 10: discharge Radio Link, carry out under the IDLE that net is searched in the candidate sub-district or full range is searched net.
The scheme of employing the invention described above embodiment has realized reaching synchronously the step-out processing time can be according to current channel condition self adaptation adjustment; Improve synchronous and step-out treatment effeciency, solved the deficiency of the parameter that all UE use one covers are fixed in the existing sub-district.
The embodiment of the invention two provides a kind of self adaptation synchronous asynchronization process method; The difference of this method and the foregoing description one is; The operation of its configured threshold value is accomplished by network side; Just in the step 2 of the foregoing description one and step 6 during according to the threshold value of up-to-date channel quality measurements configuration T313 timer and T315 timer; Be up-to-date channel quality measurements to be reported network side, dispose the threshold value of said T313 timer and T315 timer by network side according to this channel quality measurements by UE.Before starting timer, be handed down to UE afterwards.Other operating procedures are with described in the embodiment one.Repeat no more here.This scheme can realize reaching synchronously the step-out processing time equally and adjust according to current channel condition self adaptation, improves synchronously and the step-out treatment effeciency, solves the deficiency of the parameter that all UE use one covers are fixed in the existing sub-district.
The self adaptation adjustment of timer threshold value when all having realized among the foregoing description one and the embodiment two to synchronous and step-out processing; Can be as required in the practical operation only adjustment need the timer threshold value adjusted; For example only adjust the T313 threshold value; Or only adjust the T315 threshold value, this present invention is not done qualification.
The embodiment of the invention three improves the synchronous step-out processing unit of a kind of self adaptation, is illustrated in figure 2 as the module diagram of this device, comprising:
Can be with reference to following rule when configuration timer threshold value: satisfy predetermined threshold in channel quality value, thereby show that when channel condition was good, the threshold value that then disposes timer was relatively large, so that reserve sufficient lock in time; If channel quality value satisfies predetermined threshold, thereby when showing bad channel conditions, the threshold value that then disposes timer is less relatively, so that be difficult in time to confirm step-out information under the synchronous condition, and starts the candidate Cell searching.
In order to simplify realization flow, can channel quality measurements be divided into several intervals according to size order, each interval threshold value of corresponding one group of timer respectively.Which interval is the current channel quality measurements that measures drop on, and just uses that interval corresponding timer threshold value.This moment, said dispensing unit specifically comprised:
The synchronous step-out processing unit of said self adaptation also comprises: synchronous step-out processing unit 23 is used for carrying out synchronous step-out according to the threshold value of the timer of said dispensing unit 22 configurations and handles operation.
The synchronous step-out processing unit of this self adaptation can be arranged at the UE side, and this moment, said device can also comprise: measuring unit 24 (not shown)s, be used for measure channel quality, and obtain channel quality measurements and be used to offer said acquiring unit 21.Perhaps, the acquiring unit 21 of the synchronous step-out processing unit of this self adaptation is connected with the correlation unit of the original completion channel quality measurement of UE side, obtains channel quality measurements.
The synchronous step-out processing unit of this self adaptation also can be arranged at network side, and this moment, said device can also comprise:
Issue unit 25 (not shown)s, be used for the threshold value of said dispensing unit 22 configurations is handed down to UE;
Perhaps, the unit that the original related realization of dispensing unit 22 and network side of said device is issued links to each other, and the threshold value of this configuration is issued.
The threshold value of timer when the said device of the embodiment of the invention can be handled according to channel quality measurements configuration synchronization and step-out improves synchronously and the step-out treatment effeciency, solves the deficiency that all UE in the existing sub-district use the parameter that a cover fixes.
In sum; Timer threshold value when the embodiment of the invention can be handled according to channel quality measurements configuration synchronization and step-out; Realize self adaptation to adjust with the channel condition with the step-out processing time synchronously; Improve synchronously and the step-out treatment effeciency, solved in the existing method deficiency that all UE of sub-district only use set of parameter.
In addition, the present invention utilizes the metrical information of channel quality, like the RSCP of CPICH, Ec/Io; SNR etc., satisfy predetermined condition at channel condition at the adaptive change step-out determining time; Thereby show when channel condition is good, reserve more adequate time, be convenient to set up synchronously; Satisfy another predetermined condition at channel condition, thereby show when channel quality is relatively poor, shorten the stand-by period that step-out is judged, improve the efficient that step-out is judged.
The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1. the synchronous asynchronization process method of self adaptation is characterized in that, comprising:
Obtain channel quality measurements;
Handle the timer threshold value of using according to said channel quality measurements configuration synchronization step-out; Collocation method comprises: when channel quality measurements showed that channel condition is good, the threshold value that disposes said timer was relatively large; When channel quality measurements showed bad channel conditions, the threshold value that disposes said timer was less relatively;
Start timer, utilize said threshold value to carry out synchronous step-out and handle operation.
2. the method for claim 1 is characterized in that, before obtaining channel quality measurements, said method also comprises:
The subscriber equipment measure channel quality obtains channel quality measurements.
3. the method for claim 1; It is characterized in that said channel quality measurements comprises: the received signal code power RSCP value of CPICH Common Pilot Channel CPICH, each chip received energy of CPICH and the ratio Ec/Io of total received power spectrum density or in the signal to noise ratio snr any.
4. the method for claim 1 is characterized in that, if the said step of handling the timer threshold value of using according to said channel quality measurements configuration synchronization step-out is carried out by network side, then before starting timer, said method also comprises:
Said threshold value is handed down to subscriber equipment.
5. like each described method in the claim 1 to 4, it is characterized in that the method for handling the timer threshold value of using according to said channel quality measurements configuration synchronization step-out comprises:
Channel quality measurements is divided between several region, and the synchronous step-out that each interval correspondence is to be disposed is handled the timer threshold value of using;
Judge the said affiliated interval of channel quality measurements that obtains, confirm the timer threshold value that synchronous step-out processing is used according to affiliated interval.
6. method as claimed in claim 5 is characterized in that, said synchronous step-out is handled the timer that uses and comprised: T313 timer and/or T315 timer.
7. the synchronous step-out processing unit of self adaptation is characterized in that, comprising:
Acquiring unit is used to obtain channel quality measurements, and transmits this channel quality measurements;
Dispensing unit is used to receive the channel quality measurements that said acquiring unit transmits, the threshold value of timer during according to this channel quality measurements configuration synchronization and step-out processing; Collocation method comprises: when channel quality measurements showed that channel condition is good, the threshold value that disposes said timer was relatively large; When channel quality measurements showed bad channel conditions, the threshold value that disposes said timer was less relatively;
Synchronous step-out processing unit is used for carrying out synchronous step-out according to the threshold value of the timer of said dispensing unit configuration and handles operation.
8. device as claimed in claim 7 is characterized in that said device is arranged at user equipment side, and this device also comprises:
Measuring unit is used for measure channel quality, obtains channel quality measurements, offers said acquiring unit.
9. device as claimed in claim 7 is characterized in that said device is arranged at network side, and this device also comprises:
Issue the unit, be used for the threshold value of said dispensing unit configuration is handed down to subscriber equipment.
10. like claim 7,8 or 9 described devices, it is characterized in that said dispensing unit specifically comprises:
Storing sub-units is used to store the channel quality measurements that is divided into several intervals according to size order, the threshold value of each interval corresponding respectively one group of timer during synchronously with the step-out processing;
The coupling subelement is used for channel quality measurements coupling that the current channel quality measurements that obtains and above-mentioned storing sub-units are stored, confirms the threshold value of timer synchronously and during the step-out processing that the current channel quality measurements that obtains is corresponding.
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| CN2008101257559A CN101309493B (en) | 2008-06-18 | 2008-06-18 | Adaptive synchronization and asynchronization process method and apparatus |
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| CN101309493A CN101309493A (en) | 2008-11-19 |
| CN101309493B true CN101309493B (en) | 2012-03-21 |
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| CN103369552B (en) * | 2012-03-27 | 2016-07-06 | 普天信息技术有限公司 | A kind of user of judgement synchronizes the method for step-out |
| CN103826247B (en) * | 2012-11-16 | 2017-06-16 | 普天信息技术研究院有限公司 | A kind of method being monitored to Radio Link in heterogeneous network |
| CN109587725B (en) * | 2017-09-29 | 2022-01-11 | 北京紫光展锐通信技术有限公司 | Channel quality state information updating method and device and computer readable storage medium |
| CN110139355B (en) * | 2018-02-09 | 2021-06-29 | 大唐移动通信设备有限公司 | Method, device and equipment for managing threshold pair change |
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| CN101128002A (en) * | 2006-08-17 | 2008-02-20 | 华为技术有限公司 | A method for asynchronization and synchronization detection of wireless link |
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| CN101128002A (en) * | 2006-08-17 | 2008-02-20 | 华为技术有限公司 | A method for asynchronization and synchronization detection of wireless link |
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