CN103517214B - Transmission power adjustment method and base station based on group user terminal - Google Patents
Transmission power adjustment method and base station based on group user terminal Download PDFInfo
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- CN103517214B CN103517214B CN201210207973.3A CN201210207973A CN103517214B CN 103517214 B CN103517214 B CN 103517214B CN 201210207973 A CN201210207973 A CN 201210207973A CN 103517214 B CN103517214 B CN 103517214B
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Abstract
The present invention provides a kind of transmission power adjustment method and base station based on group user terminal.Wherein, method includes：After the down wireless link failed message that the first group user terminal for receiving the first group sends, currently corresponding first transmission power obtains the second transmission power to the first group of increase, and within a specified time keeps the second transmission power constant；Count the quantity of the group user terminal that down wireless link failed message is sent within a specified time the first group, and power adjustment ratio is obtained according to the total quantity of group user terminal in the quantity for counting on and the first group；Ratio is adjusted according to power and adjusts the second transmission power.Technical solution of the present invention ensure that the communication quality of the downlink of group user terminal by appropriate adjustment transmission power, reduce because frequently carrying out the wasting of resources that resource reconfiguration is caused.
Description
Technical field
A kind of the present invention relates to communication technology, more particularly to transmission power adjustment method and base based on group user terminal
Stand.
Background technology
TD SDMA（Time Division-Synchronous Code Division Multiple
Access, TD-SCDMA）Long Term Evolution（Long Term Evolution, LTE）Abbreviation TD-LTE, TD-LTE is used as broadband
The features such as representative of digital communication system possesses bandwidth utilization efficiency height, service bearer efficiency high, so the number based on TD-LTE
Word trunked communication system becomes the new direction of Digital Clustering development.
Due to the private network resource of frequency range less, so all user's ends in digital clustering communication system under each group service
End（Abbreviation group user terminal）Same set of downstream arrangements are shared, and descending interference is heavier.Group user terminal is according to descending chain
Road detection parameter judges to know whether the cell common pilots quality of reception meets descending step-out condition, and is meeting descending step-out bar
Down wireless link failed message request resource reconfiguration is sent to base station during part, so as to ensure the communication quality of downlink.
But, in all group user terminals, some group user terminals may judge to know and meet descending step-out bar
Part, and other group user terminal may judge to know and be unsatisfactory for descending step-out condition.So base station is according only to wherein one
The down wireless link failure that individual or certain several group user terminal are poor based on the cell common pilots quality of reception and send
Message causes resource again with relatively frequently, serious waste of resources to carry out resource reconfiguration be incomplete.
Content of the invention
The present invention provides a kind of transmission power adjustment method and base station based on group user terminal, in order to reduce resource weight
With the wasting of resources for causing.
The present invention provides a kind of transmission power adjustment method based on group user terminal, including：
After the down wireless link failed message that the first group user terminal for receiving the first group sends, increase institute
Currently corresponding first transmission power obtains the second transmission power to state the first group, and within a specified time keeps described second
Penetrate power constant；
Statistics sends the group of the down wireless link failed message in first group in the specified time
The quantity of user terminal, and power is obtained according to the total quantity of group user terminal in the quantity for counting on and first group
Adjustment ratio；
If the power adjustment ratio reduces by second transmission power less than or equal to default first ratio thresholding；
If the power adjustment ratio keeps institute more than the first ratio thresholding and less than default second ratio thresholding
State the second transmission power constant；
If the power adjustment ratio increases second transmission power more than or equal to the second ratio thresholding.
The present invention provides a kind of base station, including：
Increase processing module, for the down wireless link sent in the first group user terminal for receiving the first group
After failed message, currently corresponding first transmission power obtains the second transmission power to increase first group, and when specified
In keep second transmission power constant；
Statistical disposition module, sends the descending radio chains for statistics in first group in the specified time
The quantity of the group user terminal of road failed message, and according to group user terminal in the quantity for counting on and first group
Total quantity obtain power adjustment ratio；
Power regulation module, for when power adjustment ratio is less than or equal to default first ratio thresholding, reducing
Second transmission power, or in power adjustment ratio more than the first ratio thresholding and less than default second ratio
During thresholding, keep second transmission power constant, or be more than or equal to second ratio in power adjustment ratio
During thresholding, increase second transmission power.
The transmission power adjustment method based on group user terminal and base station that the present invention is provided, are receiving certain group
After the down wireless link failed message that user terminal sends, ensure all group users in group by increasing transmission power
The communication quality of the downlink of terminal, and pass through to reporting down wireless link failed message to ask in group in a period of time
The quantity of the group user terminal of resource reconfiguration is counted, and further transmission power is adjusted according to statistical result；
If the group user terminal of request resource reconfiguration is less, just reduces transmission power, both can ensure that group user terminal
The communication quality of downlink, can reduce power consumption again；If the group user terminal of request resource reconfiguration is moderate, say
The communication quality of the downlink of bright most of group user terminal is it is also possible that in order to not cause power dissipation, keeping current and sending out
Penetrate power constant；If the group user terminal of request resource reconfiguration is more, just further increases transmission power, ensure group
The communication quality of the downlink of group user terminal, transmission power now do not result in waste yet.As can be seen here, with existing skill
Art is compared, and technical solution of the present invention ensure that the communication of the downlink of group user terminal by appropriate adjustment transmission power
Quality, reduces because frequently carrying out the wasting of resources that resource reconfiguration is caused.
Description of the drawings
The flow chart of the transmission power adjustment method based on group user terminal that Fig. 1 is provided for one embodiment of the invention；
The structural representation of the base station that Fig. 2 is provided for one embodiment of the invention；
The structural representation of the base station that Fig. 3 is provided for another embodiment of the present invention.
Specific embodiment
The resource reconfiguration existed for prior art is frequent, and the problem of serious waste of resources, the embodiment of the present invention are provided
A kind of reduce the number of times of resource reconfiguration by adjusting transmission power, and then ensure the downlink of group user terminal
Communication quality the method for reducing the wasting of resources simultaneously.The method of the embodiment of the present invention is specifically included：
First, after the down wireless link failed message that the first group user terminal for receiving the first group sends,
Currently corresponding first transmission power obtains the second transmission power to increase the first group, and within a specified time keeps second to launch
Power is constant, while counting the group user terminal for sending down wireless link failed message within a specified time the first group
Quantity, and according in the quantity for counting on and the first group group user terminal total quantity obtain power adjustment ratio.
Then, the second transmission power is adjusted according to the power adjustment ratio for obtaining.Specifically include：If power adjusts ratio
Less than or equal to default first ratio thresholding, reduce the second transmission power；If power adjustment ratio is more than the first ratio thresholding
And less than default second ratio thresholding, keep the second transmission power constant；If power adjusts ratio more than or equal to the second ratio
Example thresholding, increases the second transmission power.
The executive agent of the embodiment of the present invention is base station.
Here illustrates that there may be multiple groups in base station range, various embodiments of the present invention are with wherein any one
As a example by individual group, the first group is designated as.There are multiple group user terminals in the first group.Wherein, base station receives down
Row Radio Link Failure message can be that any one or more group user terminals send in the first group, i.e. the first group
User terminal can be any one or more group user terminals in the first group.The plurality of group user terminal can
To be the group user terminal for specifying number, such as 5 or 10 etc..Or the plurality of group user terminal can also be
A certain proportion of group user terminal in one group, once the ratio-dependent, as in the first group, group user terminal is always individual
Several changes, the number of the plurality of group user terminal can also change.The ratio is the plurality of group user end
In the number at end and the first group, the ratio of group user total number of terminals amount, for example, can be 1%, 3% etc..
When base station receives the down wireless link failed message of the first group user terminal transmission, first can be known
Group user terminal request carries out resource reconfiguration, illustrates that the communication quality of the downlink of the first group user terminal is poor.
In order to ensure that the communication quality of the downlink of the first group user terminal, base station increase the first group currently corresponding transmitting work(
Rate, that is, increase the transmission power used when sending data to the group user terminal in the first group.Wherein, the first transmission power
The transmission power that data are used is sent for current base station to the first group（The current corresponding transmission power of referred to as the first group）,
Transmission power after increase is referred to as the second transmission power.
Wherein, after the first transmission power of increase, in the first group, the downlink quality of each group user terminal can be
Improve, the ratio regular meeting for detecting the group user terminal for meeting descending step-out condition in such first group reduces, and then base station
The quantity for receiving down wireless link failed message can be reduced.
After the first transmission power the second transmission power of acquisition is increased, within a period of time, keep the second transmission power not
Become.Wherein, described a period of time is the time of specifying, and the specified time with difference, and can be allowed depending on the difference of concrete group
Base station is configured or changes.For example, it is intended that the time can be 400 milliseconds, but not limited to this.
In addition, within a specified time, base station can still receive the descending wireless of the group user terminal transmission in the first group
Link failure message.Base station at the appointed time within when receiving down wireless link failed message, transmission power will not be increased.
Wherein, the down wireless link failed message that base station within a specified time receives can be sent including the first group user terminal
, it is also possible to send including other group user terminals outside the first group user terminal.Base station passes through to when specified
The interior down wireless link failed message for receiving is counted, and is obtained in the first group, at the appointed time interior to base station
The quantity of the group user terminal of down wireless link failed message is sent, and according to group in the quantity for counting on and the first group
The total quantity of group user terminal, obtains power adjustment ratio.Specifically, base station can be by the quantity for counting on and the first group
The total quantity of group user terminal is compared, and ratio is adjusted ratio as power.
Here illustrate, one of ordinary skill in the art will appreciate that be group user terminal send down wireless link
Failed message can carry the mark of the mark of group user terminal and the affiliated group of group user terminal, so base station can be with
Know the group user terminal within a specified time sent in the first group of down wireless link failed message.
Specifically, after at the appointed time terminating, base station is according to the power adjustment ratio and advance first ratio door for obtaining
Limit and/or the second ratio thresholding are compared, and adjust the second transmission power according to comparative result.Now, the second transmission power
For the currently used transmission power in base station.
Optionally, power adjustment ratio first can be compared by base station with the first ratio thresholding；If comparative result is
Power adjustment ratio is less than or equal to the first ratio thresholding, then base station reduces the second transmission power；If comparative result is power
Adjustment ratio is more than the first ratio thresholding, then base station continues to be compared power adjustment ratio with the second ratio thresholding；If
Comparative result is that power adjustment ratio is less than the second ratio thresholding, i.e., power adjustment ratio is more than the first ratio thresholding and less than the
Two ratio thresholdings, then holding the second transmission power in base station is constant；If comparative result is power adjustment ratio more than or equal to the
Two ratio thresholdings, then base station increase the second transmission power.
Optionally, power adjustment ratio first can be compared by base station with the second ratio thresholding；If comparative result is
Power adjustment ratio is more than or equal to the second ratio thresholding, then base station increases the second transmission power；If comparative result is power
Adjustment ratio is less than the second ratio thresholding, then base station continues to be compared power adjustment ratio with the first ratio thresholding；If
Comparative result is that power adjustment ratio is more than the first ratio thresholding, i.e., power adjustment ratio is more than the first ratio thresholding and less than the
Two ratio thresholdings, then holding the second transmission power in base station is constant；If comparative result is power adjustment ratio less than or equal to the
One ratio thresholding, then base station reduce the second transmission power.
Wherein, the first ratio thresholding and the second ratio thresholding be set in advance, and for different group service allow
Set different ratio thresholdings.For example, the first thresholding can be 0.2, and the second ratio thresholding can be 0.3, but not limited to this.
From above-mentioned, in embodiments of the present invention, base station is receiving the descending nothing that certain group user terminal sends
After wired link failed message, ensure the communication of the downlink of all group user terminals in group by increasing transmission power
Quality, advantageously reduces the ratio for detecting the group user terminal for meeting descending fail condition in group, advantageously reduces and connect
The quantity of the down wireless link failed message for receiving；In addition, base station is by descending wireless to reporting in group in a period of time
The quantity of the group user terminal of link failure message request resource reconfiguration is counted, according to statistical result further to sending out
Penetrate power to be adjusted；If the negligible amounts of the group user terminal of request resource reconfiguration, just reduce transmission power, both may be used
To ensure the communication quality of the downlink of group user terminal, power consumption can be reduced again；If request resource reconfiguration
Group user terminal moderate number, illustrate the communication quality of downlink of most of group user terminal it is also possible that being
Power dissipation is not caused, keeps current transmission power constant；If the quantity of the group user terminal of request resource reconfiguration
More, just further increase transmission power, ensure the communication quality of the downlink of group user terminal, transmitting work(now
Rate does not result in waste yet.Compared with prior art, the embodiment of the present invention ensure that group by appropriate adjustment transmission power
The communication quality of the downlink of user terminal, solves the communication quality for ensureing downlink by frequently resource reconfiguration
Problem, reduce because frequently carrying out the wasting of resources that resource reconfiguration is caused.
Further, in order to solve the problems, such as a long time frequently to carry out resource reconfiguration, according to power adjustment ratio
After example is adjusted to the second transmission power, that is, is reducing the second transmission power or keeping the second transmission power constant or increase
After second transmission power, can also by reduction after the second transmission power or after keeping constant the second transmission power or increase
The second transmission power again as the first transmission power, and continue executing with the first group user end for receiving the first group
After the down wireless link failed message that end sends, increase the first transmission power the second transmission power of acquisition, and at the appointed time
The interior operation for keeping the second transmission power constant.
Here illustrates that the first group user terminal here can also be any one the group user end in the first group
End, that is, first group user terminal for sending down wireless link failed message to base station after at the appointed time terminating.
Here the first group user terminal can be identical group user terminal with previous first group user terminal, it is also possible to
It is different group user terminals.
Described herein is that after base station is at the appointed time terminated and adjusting ratio according to power is carried out to the second transmission power
After adjustment, continue to be adjusted transmission power in new process cycle, specially：Receive the group user end in the first group
The down wireless link failed message for sending is held, and after at the appointed time terminating, receives first down wireless link and unsuccessfully disappeared
After breath, increase the first transmission power（I.e. currently used transmission power）The second transmission power is obtained, and is within a specified time protected
Hold that the second transmission power is constant, and within a specified time count the group that down wireless link failed message is sent in the first group
The quantity of user terminal, and power adjustment thresholding is obtained, and then thresholding the second transmission power of adjustment is adjusted according to power.
Further illustrate, if in continuously several process cycles, judged result is power adjustment thresholding and is more than second
Ratio thresholding, needs the second transmission power of continuous increase, illustrates only cannot ensure the first group by increasing transmission power
Group user terminal downlink communication quality, need to reconfigure down wireless link resource.Above-mentioned in order to solve
Problem, the base station of the present embodiment can pre-set a number of times thresholding, to judge whether to need to reconfigure down wireless link
Resource.
Based on above-mentioned, base station can count the number of times for increasing the second transmission power after continuously at the appointed time terminating.Work as work(
When rate adjustment ratio is more than or equal to the second ratio thresholding, second transmission power of the base station after using increase is again as first
Power is penetrated, and returns the down wireless link failed message executed in the first group user terminal transmission for receiving the first group
Afterwards, currently corresponding first transmission power obtains the second transmission power to increase the first group, and within a specified time keeps second
Before the constant operation of transmission power, whether the number of times for increasing the second transmission power after judging continuously at the appointed time to terminate reaches
Preset times thresholding；When judged result for no when, execute using increase after the second transmission power again as the first transmission power,
And execution is returned after the down wireless link failed message that the first group user terminal for receiving the first group sends, increase
Currently corresponding first transmission power obtains the second transmission power for first group, and within a specified time keeps the second transmission power
Constant operation.
Further, when judged result is for being, base station reconfigures the down wireless link resource of the first group.So not
Only can effectively reduce the number of times of resource reconfiguration, at the same can also prevent indivedual group user terminals in the first group because
The problem gone offline for the bit error rate is too high.
Here is illustrated, after base station reconfigures the down wireless link resource of the first group, it is also possible to continue executing with
After receiving the down wireless link failed message of the first group user terminal transmission of the first group, increase the first transmission power
Obtain the second transmission power, and the operation within a specified time keeping the second transmission power constant.
Optionally, a kind of embodiment of the first transmission power of base station increase the second transmission power of acquisition is：Base station is by
One transmission power increases predetermined power adjusting step, obtains the second transmission power.For example, it is assumed that the first transmission power is PT1, work(
Rate adjusting step is △ P, then the second transmission power PT2=PT1+△P.
Optionally, a kind of embodiment of the second transmission power of base station reduction is：Second transmission power is deducted work(by base station
The half of rate adjusting step.For example, the second transmission power P1=P after reductionT2-（△P/2）.
Optionally, a kind of embodiment of the second transmission power of base station increase is：Second transmission power is increased work(by base station
Rate adjusting step.For example, the second transmission power P2=P after increaseT2+△P.
From the relation of above-mentioned each transmission power, the second transmission power after adjustment than increase before first transmitting
Power is big, as transmission power is suitably enhanced, so being conducive to the communication quality for improving downlink.
Optionally, base station is executing the down wireless link that the first group user terminal in the first group is received sends
After failed message, the first transmission power of increase obtains the second transmission power, and within a specified time keeps the second transmission power not
Before the operation of change, following operation can be executed：
Base station issues downlink detection parameter to the group user terminal of the first group, and the downlink detects parameter
Assessment cycle and triggering thresholding including group service channel.
Base station receives the down wireless link failed message that the first group user terminal sends, and the down wireless link loses
It is that the first group user terminal is judging descending chain of the group service channel within the assessment cycle to lose message
The road quality of reception meets what the trigger gate was sent in limited time.
Wherein, group service channel（Grouping Traffic Channel, GTCH）With group control channel
（Grouping Control Channel, GCCH）Compare, the order of modulation which uses is high, therefore, in equivalent channel condition
Under, the bit error rate is higher than GCCH.So in the embodiment of the present invention, emphasis considers GTCH, but not limited to this.For GCCH, base station
Can be by using being processed in the way of similar with GTCH.
It should be noted that base station is a lot of to the mode that group user terminal issues downlink detection parameter, and such as, base
Stand and can be broadcasted by broadcast channel, can indicate that channel is issued by group, the embodiment of the present invention is not added with to this
To limit.One of ordinary skill in the art will appreciate that be base station issue downlink detection parameter carry group mark
Know, so that group user terminal receives the corresponding downlink of affiliated group and detects parameter.
The group user terminal of the first group obtain base station issue downlink detection parameter after, according to downlink
Detect that parameter is detected, specially：Under group user terminal obtains GTCH within the assessment cycle when reaching assessment cycle
Downlink reception quality, and judge whether downlink reception qualities of the GTCH within assessment cycle meets triggering thresholding.If
Group user terminal judges go out downlink reception qualities of the GTCH within assessment cycle and meet triggering thresholding, then send to base station
Down wireless link failed message.
Wherein, base station issues downlink detection parameter to the group user terminal of the first group and specifies the assessment of GTCH
Cycle and triggering thresholding so that group user terminal is after assessment cycle terminates and downlink reception quality meets triggering thresholding
When, just report down wireless link failed message to base station, by reduce group user terminal to base station report descending wireless
The number of times of link failure, further reduces the number of times for reconfiguring down wireless link resource, reduces resource reconfiguration and cause
The wasting of resources.
Wherein, the manifestation mode more than one of the triggering thresholding in the downlink detection parameter that base station issues, concrete bag
Include the corresponding triggering thresholding of at least one of the bit error rate, bit error rate, Block Error Rate and FER channel transmission parameters.
Wherein, if assessment cycle too short can cause to report frequently and interface-free resources consume big, if assessment cycle is oversize
Group user terminal can be caused again timely not processed and gone offline.In the same manner, the setting of triggering thresholding is same, if set
Unreasonable the also resulting in that puts reports frequent and interface-free resources consumption big or causes group user terminal timely not located
Manage and go offline.But, different types of group service is not complete to the requirement for reporting the frequent degree of Radio Link Failure message
Exactly the same.That is, for different types of group service, assessment cycle and triggering thresholding are different.
Wherein, the corresponding quality of service class mark of different types of group service（Quality of Service
Class Identifier, QCI）It is different, based on this, the embodiment of the present invention is characterized not with the corresponding QCI of group service
Same group service, but not limited to this.The differences such as the corresponding propagation delay time of different Q CI, the bit error rate.Table 1 gives current difference
The corresponding parameter lists of QCI.
Table 1
Wherein, for the business low to bit error rate requirement, assessment cycle can increase, the business high to bit error rate requirement, on
The report cycle will shorten.Group's speech business of QCI=1 in the private network business of current and future, typically occurs, QCI=6 is regarded
Frequency business etc..This is based on, when the embodiment of the present invention provides a kind of QCI=1, the preferred span of assessment cycle and triggering thresholding,
Specially：The preferred scope of assessment cycle is 300-500 milliseconds, can for example be 320 milliseconds, 380 milliseconds, 390 milliseconds, 420
Millisecond, 450 milliseconds or 490 milliseconds etc.；The preferred scope of triggering thresholding is 10-4-10-3, for example, can be 0.00012,
0.00015 or 0.0008 etc..When the embodiment of the present invention gives a kind of QCI=6, the preferred value of assessment cycle and triggering thresholding,
Specially：The preferred scope of assessment cycle is 500-650 milliseconds, for example, can be 520 milliseconds, 530 milliseconds, 550 milliseconds or 590
Millisecond etc.；The preferred scope of triggering thresholding is 10-7-10-5, for example, can be 0.00001,0.0000015 or 0.0000018 etc..
Below a kind of detailed implementing procedure of technical solution of the present invention is illustrated.
The flow chart of the transmission power adjustment method based on group user terminal that Fig. 1 is provided for one embodiment of the invention.
As shown in figure 1, the method for the present embodiment includes：
Step 101, base station issue downlink detection parameter, the downlink to the group user terminal of the first group
Detection parameter includes the assessment cycle of GTCH and triggering thresholding.
The assessment cycle of the GTCH in step 101 and trigger gate are limited to optional parameters.
Step 102, base station receive the down wireless link failed message that the first group user terminal sends, the descending nothing
Wired link failed message is that the first group user terminal is judging to know downlink reception qualities of the GTCH within assessment cycle
Meet what trigger gate was sent in limited time.
In step 102, the first group user terminal is by judging to know down-link receptions of the GTCH within assessment cycle
Quality meets trigger gate and prescribes a time limit, and sending down wireless link failed message can selection operation for one.
The down wireless link failure that step 103, base station are sent in the first group user terminal for receiving the first group
After message, the first transmission power of increase obtains the second transmission power, and within a specified time keeps the second transmission power constant, and
Within a specified time count in the first group send down wireless link failed message group user terminal quantity, and according to
In the quantity for counting on and the first group, the total quantity of group user terminal obtains power adjustment ratio.
Power is adjusted ratio and default first ratio thresholding for step 104, base station or the second ratio thresholding is compared,
If comparative result is power, adjustment ratio is less than or equal to default first ratio thresholding, execution step 105a；If comparing knot
Fruit more than the first ratio thresholding and is less than default second ratio thresholding, execution step 105b for power adjustment ratio；If compared
As a result it is more than or equal to the second ratio thresholding, execution step 105c for power adjustment ratio.
Step 105a, base station reduce the second transmission power, and execution step 106a.
Step 105b, base station keep the second transmission power constant, and execution step 106b.
Step 105c, base station increase the second transmission power, and execution step 106c.
Step 106a, base station using reduction after the second transmission power again as the first transmission power, and return and execute step
Rapid 102.
Step 106b, base station will keep constant the second transmission power again as the first transmission power, and return execution
Step 102.
Step 106c, base station using increase after the second transmission power again as the first transmission power, and execution step
107.
Step 107, base station judge whether the number of times of the second transmission power of continuous increase reaches preset times thresholding；If sentenced
Disconnected result is no, returns execution step 102；If it is judged that being yes, execution step 108.
Step 108, base station reconfigure the down wireless link resource of the first group, and return execution step 101.
In the present embodiment, each step can be found in the corresponding description in previous embodiment, will not be described here.
In the present embodiment, base station is receiving the down wireless link failed message that certain group user terminal sends
Afterwards, ensure the communication quality of the downlink of all group user terminals in group by increasing transmission power, and by right
The quantity of the group user terminal of down wireless link failed message request resource reconfiguration is reported to enter in a period of time in group
Row statistics, is further adjusted to transmission power according to statistical result；If the group user terminal of request resource reconfiguration
Negligible amounts, just reduce transmission power, both can ensure that the communication quality of the downlink of group user terminal, and can drop again
Low power consumption；If the moderate number of the group user terminal of request resource reconfiguration, most of group user terminal is described
Downlink communication quality it is also possible that in order to not cause power dissipation, keeping current transmission power constant；If request money
The quantity of the group user terminal that source reconfigures is more, just further increases transmission power, ensures under group user terminal
The communication quality of line link, transmission power now do not result in waste yet.Compared with prior art, the embodiment of the present invention passes through
Appropriate adjustment transmission power ensure that the communication quality of the downlink of group user terminal, solve by frequently resource
The problem of the communication quality for ensureing downlink is reconfigured, is reduced because frequently carrying out the resource wave that resource reconfiguration is caused
Take.
The structural representation of the base station that Fig. 2 is provided for one embodiment of the invention.As shown in Fig. 2 the base station bag of the present embodiment
Include：Increase processing module 21, statistical disposition module 22 and power regulation module 23.
Wherein, increase processing module 21, descending for sent in the first group user terminal for receiving the first group
After Radio Link Failure message, currently corresponding first transmission power obtains the second transmission power to the first group of increase, and is referring to
The second transmission power of interior holding of fixing time is constant.
Statistical disposition module 22, is connected with increase processing module 21, is launched for obtaining second in increase processing module 21
After power, the number of the group user terminal for sending down wireless link failed message within a specified time the first group is counted
Amount, and power adjustment ratio is obtained according to the total quantity of group user terminal in the quantity for counting on and the first group.
Power regulation module 23, is connected with statistical disposition module 22, and the power for obtaining in statistical disposition module 22 is adjusted
When whole ratio is less than or equal to default first ratio thresholding, reduces the second transmission power, or obtain in statistical disposition module 22
Power adjustment ratio more than the first ratio thresholding and less than default second ratio thresholding when, keep the second transmission power constant,
Or when the power adjustment ratio that statistical disposition module 22 is obtained is more than or equal to the second ratio thresholding, work(is launched in increase second
Rate.
Each functional module of the base station of the present embodiment can be used to execute the corresponding flow process in said method embodiment, and here is not
Repeat again, refer to the description of embodiment of the method.
The base station of the present embodiment, after the down wireless link failed message that certain group user terminal sends is received,
Ensure the communication quality of the downlink of all group user terminals in group by increasing transmission power, advantageously reduce group
The ratio of the group user terminal for meeting descending fail condition is detected in group, advantageously reduces the down wireless link for receiving
The quantity of failed message；In addition, base station passes through to reporting down wireless link failed message request money in group in a period of time
The quantity of the group user terminal that source reconfigures is counted, and further transmission power is adjusted according to statistical result；Such as
The negligible amounts of the group user terminal of fruit request resource reconfiguration, just reduce transmission power, both can ensure that group user end
The communication quality of the downlink at end, can reduce power consumption again；If the group user terminal of request resource reconfiguration
Moderate number, illustrates the communication quality of the downlink of most of group user terminal it is also possible that in order to not cause power dissipation,
Keep current transmission power constant；If the quantity of the group user terminal of request resource reconfiguration is more, just further increase
Transmission power, ensures the communication quality of the downlink of group user terminal, and transmission power now does not result in waste yet.
Compared with prior art, the base station of the present embodiment ensure that the descending chain of group user terminal by appropriate adjustment transmission power
The communication quality on road, solve the problems, such as by frequently resource reconfiguration ensure downlink communication quality, reduce because
The wasting of resources that resource reconfiguration cause frequently is carried out.
The structural representation of the base station that Fig. 3 is provided for another embodiment of the present invention.The present embodiment can be based on shown in Fig. 2 to be implemented
Example is realized.As shown in figure 3, the base station of the present embodiment also includes：Increase processing module 21, statistical disposition module 22 and power adjustment
Module 23, and each module also has the function of embodiment illustrated in fig. 2 description.
Further, the second transmission power or holding after the power regulation module 23 of the present embodiment is additionally operable to reduction is constant
The second transmission power or increase after the second transmission power again as the first transmission power, and trigger increase processing module 21
Continue executing with after the down wireless link failed message that the first group user terminal for receiving the first group sends, increase the
Currently corresponding first transmission power obtains the second transmission power for one group, and within a specified time keeps the second transmission power not
The operation of change.Optionally, power regulation module 23 and increase processing module 21 connect.
Further, the base station of the present embodiment also includes：Judge module 24.Judge module 24, is connected with power regulation module 23
Connect, when the power adjustment ratio for obtaining in power regulation module 23 is more than or equal to the second ratio thresholding, judge continuously to exist
The specified time increases the number of times of the second transmission power and whether reaches preset times thresholding after terminating.
Accordingly, power regulation module 23 specifically for the judged result in judge module 24 for no when, by increase after
Second transmission power is again as the first transmission power, and triggers increase processing module 21 and continue executing with and receiving the first group
The first group user terminal send down wireless link failed message after, increase the first group currently corresponding first transmitting
Power obtains the second transmission power, and the operation within a specified time keeping the second transmission power constant.
Further, the base station of the present embodiment also includes：Resource configuration module 25.Resource configuration module 25, with judge module
24 connections, for when the judged result of judge module 24 is for being, reconfiguring the down wireless link resource of the first group.
In the present embodiment, increase processing module 21 is particularly used in increases predetermined power adjustment step by the first transmission power
Long, obtain the second transmission power.Power regulation module 23 is particularly used in and for the second transmission power to deduct power adjustment step size
Half is realizing the purpose for reducing the second transmission power, or the second transmission power is increased power adjustment step size to realize increasing
The purpose of the second transmission power.
Further, the base station of the present embodiment also includes：Sending module 26 and receiver module 27.
Sending module 26, issues downlink detection parameter for the group user terminal to the first group, described descending
Link detecting parameter includes the assessment cycle of group service channel and triggering thresholding.
Receiver module 27, is connected with sending module 26, for group user terminal from sending module 26 to the first group
After sending downlink detection parameter, the down wireless link failed message that the first group user terminal sends is received, described
The first group user of down wireless link failed message terminal is in the case where judging to know group service channel within assessment cycle
Downlink reception quality meets what trigger gate was sent in limited time.
Optionally, the corresponding QCI of the business of the first group is 1, and assessment cycle is 400 milliseconds, and trigger gate is limited to 10-3.Or
Person
The corresponding QCI of the business of the first group is 6, and assessment cycle is 600 milliseconds, and trigger gate is limited to 10-6.
Optionally, statistical disposition module 22 is connected with receiver module 27, is specified in the time by reception mould specifically for statistics
Block 27 receives down wireless link failed message, obtains in the time of specifying and reports down wireless link unsuccessfully to disappear in the first group
The quantity of the user terminal of breath.
Wherein, above-mentioned each functional module can be used to execute the corresponding flow process in said method embodiment of the present invention, and which is concrete
Operation principle is repeated no more, and refers to the description of embodiment of the method.
From the foregoing, the base station of the present embodiment is receiving the down wireless link mistake that certain group user terminal sends
After losing message, ensure the communication quality of the downlink of all group user terminals in group by increasing transmission power, and
By to reporting down wireless link failed message to ask the group user terminal of resource reconfiguration in group in a period of time
Quantity is counted, and further transmission power is adjusted according to statistical result；If the group of request resource reconfiguration uses
The negligible amounts of family terminal, just reduce transmission power, both can ensure that the communication quality of the downlink of group user terminal, and
Power consumption can be reduced；If the moderate number of the group user terminal of request resource reconfiguration, illustrate that most of group uses
The communication quality of the downlink of family terminal is it is also possible that in order to not cause power dissipation, keep current transmission power constant；If
The quantity of the group user terminal of request resource reconfiguration is more, just further increases transmission power, ensures group user end
The communication quality of the downlink at end, transmission power now do not result in waste yet.Compared with prior art, the present invention is implemented
Example ensure that the communication quality of the downlink of group user terminal by appropriate adjustment transmission power, solve by frequent
Resource reconfiguration ensure downlink communication quality problem, reduce because frequently carrying out the money that resource reconfiguration is caused
Source wastes.
One of ordinary skill in the art will appreciate that：Realize that all or part of step of above-mentioned each method embodiment can be led to
Cross the related hardware of programmed instruction to complete.Aforesaid program can be stored in a computer read/write memory medium.The journey
Sequence upon execution, executes the step of including above-mentioned each method embodiment；And aforesaid storage medium includes：ROM, RAM, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Finally it should be noted that：Various embodiments above only in order to technical scheme to be described, rather than a limitation；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (8)
1. a kind of transmission power adjustment method based on group user terminal, it is characterised in that include：
After the down wireless link failed message that the first group user terminal for receiving the first group sends, increase described the
Currently corresponding first transmission power obtains the second transmission power for one group, and within a specified time keeps the second transmitting work(
Rate is constant；
Statistics sends the group user of the down wireless link failed message in first group in the specified time
The quantity of terminal, and power adjustment is obtained according to the total quantity of group user terminal in the quantity for counting on and first group
Ratio, wherein described power adjustment ratio are the sum of group user terminal in the quantity for counting on and first group
The ratio of amount；
If the power adjustment ratio reduces by second transmission power less than or equal to default first ratio thresholding；
If power adjustment ratio is more than the first ratio thresholding and less than default second ratio thresholding, described the is kept
Two transmission powers are constant；
If the power adjustment ratio increases second transmission power more than or equal to the second ratio thresholding；
After the down wireless link failed message that the first group user terminal for receiving the first group sends, increase described the
Currently corresponding first transmission power obtains the second transmission power for one group, and within a specified time keeps the second transmitting work(
Include before rate is constant：
Downlink detection parameter is issued to the group user terminal of first group, the downlink detection parameter includes
The assessment cycle of group service channel and triggering thresholding；
The down wireless link failed message that the first group user terminal sends is received, the down wireless link loses
It is that the first group user terminal is judging descending chain of the group service channel within the assessment cycle to lose message
The road quality of reception meets what the trigger gate was sent in limited time.
2. the transmission power adjustment method based on group user terminal according to claim 1, it is characterised in that reducing
Second transmission power, keep second transmission power constant or also include after increasing second transmission power：
The second transmission power after by reduction keeps the second constant transmission power or the second transmission power after increase again
As first transmission power, and return the descending nothing executed in the first group user terminal transmission for receiving the first group
After wired link failed message, currently corresponding first transmission power obtains the second transmission power to increase first group, and
The operation for keeping second transmission power constant in the specified time.
3. the transmission power adjustment method based on group user terminal according to claim 2, it is characterised in that described will
The second transmission power after increase again as first transmission power, and return execution receiving the first of the first group
After the down wireless link failed message that group user terminal sends, the first transmission power of increase obtains the second transmission power, and
Include before the operation within a specified time keeping second transmission power constant：
Judge whether the number of times for continuously increasing second transmission power after the specified time terminates reaches preset times door
Limit；
When judged result is no, the second transmission power after executing increase is again as first transmission power, and returns
, after the down wireless link failed message that the first group user terminal for receiving the first group sends, increase is described for receipt row
Currently corresponding first transmission power obtains the second transmission power for first group, and within a specified time keeps second transmitting
The constant operation of power；
When judged result is for being, the down wireless link resource of first group is reconfigured.
4. the transmission power adjustment method based on group user terminal according to claim 1, it is characterised in that for not
The group service of same type, the assessment cycle are different with the triggering thresholding.
5. a kind of base station, it is characterised in that include：
Increase processing module, for the down wireless link failure sent in the first group user terminal for receiving the first group
After message, currently corresponding first transmission power obtains the second transmission power to increase first group, and within a specified time
Keep second transmission power constant；
Statistical disposition module, sends the down wireless link in first group in the specified time for statistics and loses
Lose the quantity of the group user terminal of message, and according in the quantity for counting on and first group group user terminal total
Quantity obtains power adjustment ratio, and wherein described power adjustment ratio is group in the quantity for counting on and first group
The ratio of the total quantity of group user terminal；
Power regulation module, for when power adjustment ratio is less than or equal to default first ratio thresholding, reducing described
Second transmission power, or in power adjustment ratio more than the first ratio thresholding and less than default second ratio thresholding
When, keep second transmission power constant, or be more than or equal to the second ratio thresholding in power adjustment ratio
When, increase second transmission power；
Also include：
Sending module, for issuing downlink detection parameter, the descending chain to the group user terminal of first group
Road detection parameter includes the assessment cycle of group service channel and triggering thresholding；
Receiver module, for receiving the down wireless link failed message that the first group user terminal sends, described
Down wireless link failed message is that the first group user terminal is judging the group service channel in the assessment
Downlink reception quality in cycle meets what the trigger gate was sent in limited time.
6. base station according to claim 5, it is characterised in that the power regulation module be additionally operable to reduction after second
Transmission power keeps the second constant transmission power or the second transmission power after increase again as the described first transmitting work(
Rate, and trigger described increase processing module continue executing with receive the first group the first group user terminal send descending
After Radio Link Failure message, currently corresponding first transmission power obtains the second transmission power to increase first group, and
The operation within a specified time keeping second transmission power constant.
7. base station according to claim 6, it is characterised in that also include：
Judge module, for when power adjustment ratio is more than or equal to the second ratio thresholding, judging continuously in institute
State the specified time terminate after increase the number of times of second transmission power and whether reach preset times thresholding；
Resource configuration module, for when the judged result of the judge module is for being, reconfiguring under first group
Row air-link resources；
The power regulation module specifically for the judged result in the judge module for no when, by increase after second transmitting
Power is again as first transmission power, and triggers the increase processing module and continue executing with and receiving the first group
After the down wireless link failed message that first group user terminal sends, increase first group currently corresponding first
Penetrate power and obtain the second transmission power, and the operation within a specified time keeping second transmission power constant.
8. base station according to claim 5, it is characterised in that for different types of group service, the assessment cycle
Different with the triggering thresholding.
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| CN106879061B (en) * | 2015-12-10 | 2019-09-17 | 电信科学技术研究院 | A kind of method and apparatus carrying out interference coordination |
| CN105813184B (en) * | 2016-03-07 | 2019-11-08 | Tcl移动通信科技（宁波）有限公司 | Enhance the system of network signal and its enhances the method for network signal |
| CN108990098B (en) * | 2017-06-05 | 2021-09-24 | 成都鼎桥通信技术有限公司 | Retransmission method in cluster system |
| CN107422753B (en) * | 2017-07-21 | 2021-01-01 | 深圳怡化电脑股份有限公司 | Intelligent banknote sorting pressure adjusting system and method |
| CN111726181B (en) * | 2019-03-18 | 2022-10-21 | 中兴通讯股份有限公司 | Method and device for acquiring channel state information |
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