CN103369590B - Congestion control method and device based on TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) system, and base station - Google Patents
Congestion control method and device based on TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) system, and base station Download PDFInfo
- Publication number
- CN103369590B CN103369590B CN201310321025.7A CN201310321025A CN103369590B CN 103369590 B CN103369590 B CN 103369590B CN 201310321025 A CN201310321025 A CN 201310321025A CN 103369590 B CN103369590 B CN 103369590B
- Authority
- CN
- China
- Prior art keywords
- time slot
- code channel
- channel number
- underload
- currently
- 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.)
- Expired - Fee Related
Links
Abstract
The invention discloses a congestion control method and device based on a TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) system, and a base station. The method comprises the following steps: aiming at each time slot to be controlled of the TD-SCDMA system, executing a step of determining the number of occupied code tracks before and after executing packet service PS operation by selected time slot spanning user equipment (UE) of the current time slot to be controlled; calculating the number of code tracks which can be distributed on each time slot in the direction of the current time slot to be controlled of the selected time slot spanning UE according to the assigned load amount of the current time slot to be controlled and the number of the occupied code tracks before and after PS speed reduction is carried out by the selected time slot spanning UE; carrying out code track distribution, wherein the assigned load value of the current time slot to be controlled is a difference value of an average load of the current time slot to be controlled and an assigned threshold value. According to the scheme disclosed by the invention, an overload condition in a low time slot and an underload condition in a high time slot can be effectively solved.
Description
Technical field
The present invention relates to communication technical field, espespecially one kind is based on TD SDMA（Time Division
Synchronized Code Division Multi Access, TD-SCDMA）The jamming control method of system, device and base
Stand.
Background technology
Work as Internet traffic（The i.e. portfolio of network transmission）Close to the maximum capacity of network processes business when, will occur
Network congestion.In TD-SCDMA system, Internet traffic is referred to as system load, when system load exceedes overload threshold, equally
Congestion can occur.When TD-SCDMA system occurs congestion, need to take certain jamming control method, system load is maintained
Near equally loaded.Conventional jamming control method is as follows：Access Control operation, dynamic channel allocation（Dynamic
Channel Assignment, DCA）, power control operation, Packet Service（Packet Service, PS）Operation, switching control
Operation, AMR control（Adaptive Multi-Rate Control, AMRC）Etc..
Above-mentioned PS operation includes PS reduction of speed during system congestion and system underload when PS raising speed, due to PS operation mainly
It is for non-real-time service, and non-real-time service is controlled to the load that system is brought, therefore, pass through PS in system congestion
Reduction of speed, to reduce the transfer rate of non-real-time service, can quickly reduce non-real-time service and load and ensure higher to what system was brought
The service quality of priority real time business（Quality of Service, QoS）And the stability of system；When system is underload
Improve the transfer rate of non-real-time service by PS raising speed, can quick-recovery non-real-time service soon QoS.
Existing PS reduction of speed has two ways, the first：Select user equipment by directly reducing（User
Equipment, UE）The transfer rate of non-real-time service come to reduce non-real-time service occupancy code channel number, thus reduce to time slot
In other UE, the interference of adjacent cell UE, and then reduce interference to itself, but when system load is very heavy, this part code channel
May can be taken by new UE again, lead to the link-quality selecting UE not necessarily can be improved, and subsequently carrying out PS
During raising speed, because physical channel configuration is altered, need wait to re-start physical channel configuration, so can cause resource wave
Take and time delay；Second：Keep the code channel sum of non-real-time service constant, by limiting transport format combination set（Transport
Format Combination Set, TFCS）In valid transport format combination（Transport Format Set, TFC）Come
Reduce the transfer rate of non-real-time service that is to say, that the code channel having after PS reduction of speed will not be occupied, this mode is in fall
While low system load, the link-quality improvement for selected UE is also obvious, and when carrying out PS raising speed, by
Do not have in physical channel configuration and change, as long as releasing the transmission speed that the restriction to TFCS just can realize improving non-real-time service
Rate.
The above-mentioned second way there is problems that：If across time slot UE occurs congestion in low time slot, in execution PS reduction of speed
After can redistribute code channel to this across time slot UE, according to physical layer channel mapping rule（When UE be assigned with a sub- frame in many
During individual physical channel, mapping order is：Time slot, spreading factor, channel code are that is to say, that the business datum on UE can first be reflected
It is mapped on the time slot of low sequence number, if in a time slot, being first mapped on the code channel of low spreading factors, if there being multiple same spread
The code channel of the factor, is first mapped on the code channel of low sequence number）, still code channel can be re-assigned to low time slot（I.e. congestion time slot
On）It is impossible to really solve the situation of low time slot congestion.Occur underload in high time slot simultaneously for across time slot UE, in execution PS liter
After speed, due to physical layer channel mapping rule it is possible to really not solve the underload situation of high time slot, when also can cause other
The congestion situation of gap occurs.Therefore, existing jamming control method can not efficiently control the situation of system congestion.
Content of the invention
The embodiment of the present invention provides a kind of jamming control method based on TD-SCDMA system, device and base station, in order to solve
Certainly existing jamming control method can not efficiently control the problem of system congestion situation.
Therefore, according to one embodiment of the invention, provide a kind of jamming control method based on TD-SCDMA system, including：
For each time slot to be controlled of TD-SCDMA system, execute：
Determine that across the time slot user equipment UE of selecting of currently time slot to be controlled takies before and after execution Packet Service PS operation
Code channel number；
Load specified amount according to described time slot currently to be controlled and described selected across time slot UE are before and after execution PS reduction of speed
The code channel number taking, calculates described selected across time slot UE assignable code on each time slot in described time slot direction currently to be controlled
Road number, and carry out code channel distribution, the load specified amount of described time slot currently to be controlled is the average of described time slot currently to be controlled
Load and the difference of appointed threshold value.
The program accounts for before and after execution PS reduction of speed according to the load specified amount of currently time slot to be controlled and selected across time slot UE
Code channel number, to determine and to select across time slot UE assignable code channel number on currently each time slot in time slot direction to be controlled, by
In the load specified amount considering currently time slot to be controlled, no longer carry out dividing of code channel only according to physical layer channel mapping rule
Join, the overload conditions such that it is able to the low time slot of effectively solving and the underload situation of high time slot.
Embodiments of the invention also provide a kind of congestion control device based on TD-SCDMA system, including：
Determining unit, for each time slot to be controlled for TD SDMA TD-SCDMA system, executes：Really
The code channel number selecting across time slot user equipment UE occupancy before and after execution Packet Service PS operation of settled front time slot to be controlled；
Processing unit, is holding for the load specified amount according to described time slot currently to be controlled and described selected across time slot UE
The code channel number taking before and after row PS reduction of speed, calculates described selected each time slot in described time slot direction currently to be controlled for across the time slot UE
Upper assignable code channel number, and carry out code channel distribution, the load specified amount of described time slot currently to be controlled is described currently to be controlled
The average load of time slot processed and the difference of appointed threshold value.
Embodiments of the invention also provide a kind of base station, including the above-mentioned congestion control device based on TD-SCDMA system.
Brief description
Fig. 1 is the flow chart of the jamming control method in the embodiment of the present invention based on TD-SCDMA system；
Fig. 2 is the flow chart of the overload controlling method in the embodiment of the present invention based on TD-SCDMA system；
Fig. 3 is the flow chart of the underload control method in the embodiment of the present invention based on TD-SCDMA system；
Fig. 4 is the structural representation of the congestion control device in the embodiment of the present invention based on TD-SCDMA system；
Fig. 5 is the structural representation of the overloading control device in the embodiment of the present invention based on TD-SCDMA system；
Fig. 6 is the structural representation of the underload control device in the embodiment of the present invention based on TD-SCDMA system.
Specific embodiment
The problem of the situation of system congestion, the embodiment of the present invention can not be efficiently controlled for existing jamming control method
A kind of jamming control method based on TD-SCDMA system is provided, the flow process of the method as shown in figure 1, for each to be controlled when
Gap, execution：
S10：Determine the code channel number selecting across time slot UE occupancy before and after execution PS operation of currently time slot to be controlled.
S11：Load specified amount according to currently time slot to be controlled and selected across time slot UE take before and after execution PS reduction of speed
Code channel number, calculate and select across time slot UE assignable code channel number on currently each time slot in time slot direction to be controlled, and carry out
Code channel distributes, and currently the load specified amount of time slot to be controlled is the difference of the currently average load of time slot to be controlled and appointed threshold value
Value.
The program accounts for before and after execution PS reduction of speed according to the load specified amount of currently time slot to be controlled and selected across time slot UE
Code channel number, to determine and to select across time slot UE assignable code channel number on currently each time slot in time slot direction to be controlled, by
In the load specified amount considering currently time slot to be controlled, no longer carry out dividing of code channel only according to physical layer channel mapping rule
Join, the overload conditions such that it is able to the low time slot of effectively solving and the underload situation of high time slot.
Premature beats based on TD-SCDMA system and underload control method are described below.
The flow process of the overload controlling method based on TD-SCDMA system is as shown in Fig. 2 when now time slot to be controlled is congestion
Gap, for each congestion time slot, execution step is as follows：
S20：Determine current congestion time slot selectes the code channel number that across time slot UE takies before and after execution PS reduction of speed.
Can be determined according to the priority across time slot UE on current congestion time slot and select across time slot UE.
S21：Overload amount according to current congestion time slot and selected across time slot UE occupancy before and after execution PS reduction of speed
Code channel number, calculates and selectes across time slot UE assignable code channel number on each time slot in current congestion time slot direction, and carry out code channel
Distribution, the overload amount of current congestion time slot is the difference with underload thresholding for the average load of current congestion time slot.
The average load of current congestion time slot is averagely estimating by the load within a period of time to current congestion time slot
Meter obtains.Received total wideband power can be passed through for up-link（Received total wide band power,
RTWP）Or interference code power（Interference Signal Code Power, ISCP）Counted, can for downlink
With by launching carrier power（Transmitted Carrier Power, TCP）Counted.
S22：Confirming whether code channel distribution is successful, if being allocated successfully, executing S23；If distribution is unsuccessful, execute S24；
S23：Update the overload amount of current congestion time slot, determine whether the overload amount after updating is more than zero, if
More than zero, execute S24；If being less than or equal to zero, execute S25；
S24：Again choose across time slot UE as selected across time slot UE, execute S20；
S25：Terminate flow process.
Specifically, calculating in above-mentioned S21 is selected across time slot UE and can be distributed on each time slot in current congestion time slot direction
Code channel number, specifically include：
Determine the variable quantity selecting the code channel number that across time slot UE takies before and after execution PS reduction of speed；
Using variable quantity and the smaller value selected in the code channel number that takies on current congestion time slot of across time slot UE as selected
Across time slot UE diminishbb maximum code channel number on current congestion time slot；
The overload amount and the ratio of the average load amount of code channel of current congestion time slot is rounded, by the ratio after rounding
Smaller with selecting in across time slot UE diminishbb maximum code channel number on current congestion time slot, exists as selected across time slot UE
Diminishbb code channel number on current congestion time slot；
Variable quantity and selected across time slot UE difference of diminishbb code channel number on current congestion time slot are distributed to selected
Across time slot UE includes each time slot of current congestion time slot on the direction of current congestion time slot place；
The code channel number that selected across time slot UE is taken on current congestion time slot deducts the code of distribution on current congestion time slot
The difference of road number and diminishbb code channel number is as assignable code channel number on current congestion time slot；And
To take on selected across time slot UE each time slot in addition to current congestion time slot on the direction of current congestion time slot place
Code channel number deduct the code channel number of corresponding distribution as assignable code channel number on corresponding time slot.
Wherein, variable quantity and the PS rate reduction strategy of the code channel number that across time slot UE takies before and after execution PS reduction of speed are selected
Relevant, the stream class service of ps domain can be down to guaranteed rate, and I/B class business there is no guarantee that speed, speed can be reduced to 0 or
The speed that base station is specified.The reduction of speed of PS can also be classified and carry out, till the minimum speed limit allowing.The classification of speed with
And the speed series of reduction every time can also be configured by base station.
The average load amount of code channel refer to a period of time in across time slot UE the single code channel in congestion time slot average
Load；Received signal code power can be passed through for up-link（Received Signal Code Power, RSCP）Carry out
Statistics, can be counted by TCP for downlink.
By variable quantity with select across time slot UE on current congestion time slot the difference mean allocation of diminishbb code channel number or
Person is assigned randomly to and selectes across time slot UE each time slot including current congestion time slot on the direction of current congestion time slot place.
To illustrate to calculate with an instantiation below and to select across time slot UE on each time slot in current congestion time slot direction
Assignable code channel number.
Hypothesis TS1 is current congestion time slot, before execution PS reduction of speed, selectes and takies 12 codes on TS1 across time slot user
Road, takies 6 code channels on TS2, after execution PS reduction of speed, selectes across time slot UE and takies 8 code channels.
If according to existing method, 8 code channels after PS reduction of speed, selecting across time slot UE occupancy can be believed according to physical layer
Road mapping rule is redistributed on TS1 time slot, then on TS1 time slot, assignable code channel has 8, assignable on TS2 time slot
Code channel has 0, is now likely to result on TS1 still congestion.
According to the method for the present invention：
The variable quantity selecting the code channel number that across time slot UE takies after execution PS reduction of speed is 12+6-8=10.
Because variable quantity 10 is less than the code channel number 12 that selected across time slot UE takies on TS1, so select across time slot UE existing
The upper diminishbb maximum code channel number of TS1 is 10.
Assume the ratio of the overload amount of TS1 and the average load amount of code channel is rounded for 5, due to the ratio after rounding
5 are less than selected across time slot UE diminishbb maximum code channel number 10 on TS1, so it is diminishbb on TS1 to select across time slot UE
Code channel number is 5, and now diminishbb code channel number 5 ensure that TS1 time slot not congestion.
By variable quantity 10 and the difference selecting across time slot UE diminishbb code channel number 5 on TS1, i.e. 10-5=5 mean allocation
To each time slot including current congestion time slot, i.e. TS1 and TS2, because 5 is odd number it is impossible to realize mean allocation, then considering will
5 are divided into 2 and 3, and for ensureing no longer congestion after TS1 execution reduction of speed, then the code channel number of the distribution of TS1 is set to the code of the distribution of 3, TS2
Road number is set to 2.
The code channel number taking on TS1 12 is deducted the code channel number of distribution and the difference of diminishbb code channel number on TS1, that is,
12 5-3=4 are as code channel number assignable on TS1；
The code channel number taking on TS2 6 is deducted the code channel number 2 of distribution, that is, 6 2=4 are as code channel number assignable on TS2.
Final code channel allocation result is：TS1 distribute 4 code channels, TS2 distribute 4 code channels, 4+4=8 be equal to select across when
The code channel number taking after gap UE reduction of speed.This distribution method is under solving TS1 congestion situation additionally it is possible to when ensureing TS1 and TS2 two
Load balancing in gap.
The flow process of the underload control method based on TD-SCDMA system is as shown in figure 3, when now time slot to be controlled is underload
Gap, for each underload time slot, execution step is as follows：
S30：Determine the code channel number selecting across time slot UE occupancy before and after execution PS raising speed of currently underload time slot.
S31：The underload amount of load according to currently underload time slot and selected across time slot UE occupancy before and after execution PS raising speed
Code channel number, calculates and selectes across time slot UE assignable code channel number on the currently each underload time slot in underload time slot direction, according to meter
The assignable code channel number calculating carries out code channel distribution；Currently the underload amount of the load of underload time slot is the average of currently underload time slot
Load and the difference of overload threshold.
S32：Confirm whether code channel distribution is successful, if distribution is unsuccessful, execute S33；If being allocated successfully, execute S34.
S33：Again choose across time slot UE as selected across time slot UE, execute S30；
S34:Terminate flow process.
Specifically, selected across the time slot UE of the calculating in above-mentioned S31 can on the currently each underload time slot in underload time slot direction
The code channel number of distribution, specifically includes：
Determine the variable quantity selecting the code channel number that across time slot UE takies before and after execution PS raising speed, and currently underload time slot
The idle code channel number of each underload time slot on the direction of place；
If the code channel number sum of free time is more than or equal to variable quantity, respectively to each underload on currently underload time slot place direction
The underload amount of load of time slot and the ratio of the average load amount of code channel round, will be idle with corresponding underload time slot for the ratio after rounding
Code channel number in smaller, as selected across time slot UE on corresponding underload time slot increasable maximum code channel number；
If selecting across time slot UE increasable maximum code channel number sum on each underload time slot to be more than or equal to variable quantity, will select
The value preset of the code channel number that fixed across time slot UE occupies on currently underload time slot and increasable maximum code channel number is as currently underload
The assignable code channel number of time slot；And
The difference of variable quantity and maximum code channel number increasable on currently underload time slot is distributed to currently underload time slot institute
On each underload time slot in addition to current underload time slot on direction, by take on each underload time slot in addition to current underload time slot
Code channel number adds the code channel number sum of corresponding distribution as assignable code channel number on corresponding time slot.
Wherein, select the variable quantity of the code channel number that across time slot UE takies before and after execution PS raising speed and PS speed raises strategy
Relevant, the raising speed of PS can also be classified and carry out, till the flank speed allowing, the speed of the classification of speed and each rising
Rate series can also be configured by base station.
Below with an instantiation to illustrate calculate select across time slot UE currently underload time slot direction each underload when
Assignable code channel number in gap.
Assume that selecting across time slot UE takies 2 code channels in TS3, takies 6 code channels in TS2, takies 0 code channel on TS1,
TS3 is currently underload time slot, then, before execution PS raising speed, select across time slot UE and take 2+6+0=8 code channel it is assumed that executing PS
After raising speed, select across time slot UE and take 18 code channels.
If according to existing method, can by after execution PS raising speed, select 18 code channels that across time slot UE takies according to
Physical layer channel mapping rule is redistributed on TS1, then on TS1, the code channel number of distribution is 16, the code channel number of distribution on TS2
For 2, on TS3, the code channel number of distribution is 0, and such method of salary distribution is likely to result in TS1 congestion, and TS3 is still underload, no
Method solves the underload problem of TS3, instead results in TS1 congestion.
According to the method for the present invention：
The variable quantity selecting the code channel number that across time slot UE takies before and after execution PS raising speed is 10.
Assume that TS1 is the underload time slot on TS3 direction, and idle code channel number on TS1 is the upper idle code of 16, TS3
Road number is 14, then idle code channel number sum is 14+16=30.
Because idle code channel number sum 30 is more than variable quantity 10, if averagely negative to the underload amount of load of TS1 and code channel
The ratio of lotus amount is 8 after rounding, because the ratio 8 after rounding is less than idle code channel number 16, so selecting across time slot UE in TS1
Upper increasable maximum code channel number is 8；In the same manner, if rounding to the underload amount of load and the ratio of the average load amount of code channel of TS3
It is 6 afterwards, because the ratio 6 after rounding is less than idle code channel number 14, so selecting across time slot UE increasable maximum on TS3
Code channel number is 6.
Because increasable maximum code channel number sum 8+6=14 is more than or equal to variable quantity 10, then select across time slot UE current
The code channel number 2 occupying on underload time slot TS3 and its increasable maximum code channel number 6 and 8 conducts currently can on underload time slot TS3
The code channel number of distribution.
Meanwhile, by difference 4 mean allocation of variable quantity 10 and maximum code channel number 6 increasable on currently underload time slot TS3
On each underload time slot in addition to current underload time slot on currently underload time slot TS3 place direction, now due to only having TS1 to be deficient
Carry time slot, be therefore assigned to 4 on TS1, select the code channel number 0 that takies on TS1 of across time slot UE add the code channel number 4 that distributes it
With 4 as assignable code channel number on TS1 time slot.
Final code channel allocation result is：TS1 distributes 4 code channels, and TS2 distributes 6 code channels, and TS3 distributes 8 code channels, 4+6
+ 8=18 is equal to and selectes the code channel number that across time slot UE takies after execution PS raising speed.This distribution method is solving the underload of TS3 time slot
In the case of it is also possible to solve TS1 underload situation.
Based on same inventive concept, for the jamming control method based on TD-SCDMA system during execution PS reduction of speed, this
Inventive embodiments provide a kind of congestion control device based on TD-SCDMA system, and this device can arrange in a base station, structure
As shown in figure 4, including：
Determining unit 40, for each time slot to be controlled for TD-SCDMA system, executes：When determining currently to be controlled
The code channel number selecting across time slot UE occupancy before and after execution PS operation of gap.
Processing unit 41, for dropping in execution PS according to the currently load specified amount of time slot to be controlled and selected across time slot UE
The code channel number taking before and after speed, calculates and selectes across time slot UE assignable code channel on currently each time slot in time slot direction to be controlled
Number, and carries out code channel distribution, currently the load specified amount of time slot to be controlled be currently the average load of time slot to be controlled with specify
The difference of threshold value.
Specifically, if time slot to be controlled is congestion time slot, determining unit 40, specifically for：Determine current congestion time slot
Select the code channel number that across time slot UE takies before and after execution PS reduction of speed.
Processing unit 41, specifically for：Overload amount according to current congestion time slot and selected across time slot UE are in execution
The code channel number taking before and after PS reduction of speed, calculates and selectes across time slot UE assignable code on each time slot in current congestion time slot direction
Road number, and carry out code channel distribution, the overload amount of current congestion time slot is the average load of current congestion time slot and underload door
The difference of limit.
Preferably, the overloading control device based on TD-SCDMA system, also include updating block 50, first as shown in Figure 5
Choose unit 51 and the first end unit 52, wherein：
Processing unit 41, is additionally operable to, after carrying out code channel distribution, confirm whether code channel distribution is successful, if being allocated successfully,
Turn to updating block 50；If distribution is unsuccessful, turn to the first selection unit 51.
Updating block 50, for updating the overload amount of current congestion time slot, the overload amount after updating that determines is
No be more than zero, if be more than zero, turn to first selection unit 51；If being less than or equal to zero, turn to the first end unit 52.
First selection unit 51, for again choosing across time slot UE as selected across time slot UE, turns to determining unit 40.
First end unit 52, for terminating flow process.
Specifically, above-mentioned processing unit 41, selectes each time slot in current congestion time slot direction for across the time slot UE for calculating
Upper assignable code channel number, specifically for：
Determine the variable quantity selecting the code channel number that across time slot UE takies before and after execution PS reduction of speed；
Using variable quantity and the smaller value selected in the code channel number that takies on current congestion time slot of across time slot UE as selected
Across time slot UE diminishbb maximum code channel number on current congestion time slot；
The overload amount and the ratio of the average load amount of code channel of current congestion time slot is rounded, by the ratio after rounding
Smaller with selecting in across time slot UE diminishbb maximum code channel number on current congestion time slot, exists as selected across time slot UE
Diminishbb code channel number on current congestion time slot；
Variable quantity and selected across time slot UE difference of diminishbb code channel number on current congestion time slot are distributed to selected
Across time slot UE includes each time slot of current congestion time slot on the direction of current congestion time slot place；
The code channel number that selected across time slot UE is taken on current congestion time slot deducts the code of distribution on current congestion time slot
The difference of road number and diminishbb code channel number is as assignable code channel number on current congestion time slot；And
To take on selected across time slot UE each time slot in addition to current congestion time slot on the direction of current congestion time slot place
Code channel number deduct the code channel number of corresponding distribution as assignable code channel number on corresponding time slot.
Specifically, if time slot to be controlled is underload time slot, determining unit 40, specifically for：Determine currently underload time slot
Select the code channel number that across time slot UE takies before and after execution PS raising speed.
Processing unit 41, specifically for：The underload amount of load according to currently underload time slot and selected across time slot UE are in execution
The code channel number taking before and after PS raising speed, calculates selected across time slot UE and can distribute on the currently each underload time slot in underload time slot direction
Code channel number, the assignable code channel number according to calculating carries out code channel distribution；Currently the underload amount of the load of underload time slot is to work as
The average load of front underload time slot and the difference of overload threshold.
Preferably, the underload control device based on TD-SCDMA system, also include the second selection unit 60 He as shown in Figure 6
Second end unit 61, wherein：
Processing unit 41, whether successful for after carrying out code channel distribution, confirming code channel distribution, if distribution is unsuccessful,
Turn to the second selection unit 60；If being allocated successfully, turn to the second end unit 61；
Second selection unit 60, for again choosing across time slot UE as selected across time slot UE, turns to determining unit 40；
Second end unit 61, for terminating flow process.
Specifically, above-mentioned processing unit 41, each underload in currently underload time slot direction for calculating selected across time slot UE
Assignable code channel number on time slot, specifically for：
Determine the variable quantity selecting the code channel number that across time slot UE takies before and after execution PS raising speed, and currently underload time slot
The idle code channel number of each underload time slot on the direction of place；
If the code channel number sum of free time is more than or equal to variable quantity, respectively to each underload on currently underload time slot place direction
The underload amount of load of time slot and the ratio of the average load amount of code channel round, will be idle with corresponding underload time slot for the ratio after rounding
Code channel number in smaller, as selected across time slot UE on corresponding underload time slot increasable maximum code channel number；
If selecting across time slot UE increasable maximum code channel number sum on each underload time slot to be more than or equal to variable quantity, will select
The value preset of the code channel number that fixed across time slot UE occupies on currently underload time slot and increasable maximum code channel number is as currently underload
The assignable code channel number of time slot；And
The difference of variable quantity and maximum code channel number increasable on currently underload time slot is distributed to currently underload time slot institute
On each underload time slot in addition to current underload time slot on direction, by take on each underload time slot in addition to current underload time slot
Code channel number adds the code channel number sum of corresponding distribution as assignable code channel number on corresponding time slot.
Obviously, those skilled in the art can carry out the various changes and modification essence without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprise these changes and modification.
Claims (11)
1. a kind of jamming control method based on TD-SCDMA system is it is characterised in that include：
For each time slot to be controlled of TD SDMA TD-SCDMA system, execute：
Determine the code selecting across time slot user equipment UE occupancy before and after execution Packet Service PS operation of currently time slot to be controlled
Road number；
Load specified amount according to described time slot currently to be controlled and described selected across time slot UE take before and after execution PS reduction of speed
Code channel number, calculate described select across time slot UE assignable code channel on each time slot in described time slot direction currently to be controlled
Number, and carry out code channel distribution, the load specified amount of described time slot currently to be controlled is the averagely negative of described time slot currently to be controlled
Lotus and the difference of appointed threshold value；
Wherein, if described time slot to be controlled is congestion time slot, execution：
Determine current congestion time slot selectes the code channel number that across time slot UE takies before and after execution PS reduction of speed；
Overload amount according to described current congestion time slot and described selected across time slot UE occupancy before and after execution PS reduction of speed
Code channel number, determines the described variable quantity selecting the code channel number that across time slot UE takies before and after execution PS reduction of speed, described current congestion
The overload amount of time slot is the difference with underload thresholding for the average load of described current congestion time slot；
Using described variable quantity and the described smaller value selected in the code channel number that takies on current congestion time slot of across time slot UE as
Described selected across time slot UE diminishbb maximum code channel number on described current congestion time slot；
The overload amount and the ratio of the average load amount of code channel of described current congestion time slot is rounded, by the ratio after rounding
With described select across time slot UE on described current congestion time slot diminishbb maximum code channel number in smaller, as described choosing
Fixed across time slot UE diminishbb code channel number on described current congestion time slot；
Described variable quantity is divided with described across time slot UE difference of diminishbb code channel number on described current congestion time slot of selecting
Each time slot that across time slot UE includes described current congestion time slot on the direction of described current congestion time slot place is selected described in dispensing；
The code channel number that described selected across time slot UE is taken on described current congestion time slot deducts on described current congestion time slot
The difference of the code channel number of distribution and diminishbb code channel number is as assignable code channel number on described current congestion time slot；And
Select across time slot UE by described on the direction of described current congestion time slot place during each in addition to described current congestion time slot
The code channel number taking in gap deducts the code channel number of corresponding distribution as assignable code channel number on corresponding time slot, and carries out code channel
Distribution.
2., after the method for claim 1 is it is characterised in that carry out code channel distribution, also include：
Whether A3, confirmation code channel distribution are successful, if being allocated successfully, execute A4；If distribution is unsuccessful, execute A5；
A4, the overload amount of the described current congestion time slot of renewal, determine whether the overload amount after updating is more than zero, if greatly
In zero, execute A5；If being less than or equal to zero, execute A6；
A5, again choose across time slot UE as selected across time slot UE, execute and described determine the selecting across time slot of current congestion time slot
The code channel number that UE takies before and after execution PS reduction of speed；
A6, end flow process.
If 3. the method for claim 1, it is characterised in that described time slot to be controlled is underload time slot, determines and currently treats
Control time slot selectes the code channel number that across time slot UE takies before and after execution PS operation, specifically includes：
B1, determine currently underload time slot select across time slot UE execution PS raising speed before and after take code channel number；
Load specified amount according to described time slot currently to be controlled and described selected across time slot UE take before and after execution PS reduction of speed
Code channel number, calculate described select across time slot UE assignable code channel on each time slot in described time slot direction currently to be controlled
Number, and carry out code channel distribution, specifically include：
B2, the underload amount of load according to described currently underload time slot and described selected across time slot UE take before and after execution PS raising speed
Code channel number, calculate described select across time slot UE assignable code channel on each underload time slot in described currently underload time slot direction
Number, the assignable code channel number according to calculating carries out code channel distribution；The underload amount of load of described currently underload time slot is described
The currently difference of the average load of underload time slot and overload threshold.
4., after method as claimed in claim 3 is it is characterised in that carry out code channel distribution, also include：
Whether B3, confirmation code channel distribution are successful, if distribution is unsuccessful, execute B4；If being allocated successfully, execute B5；
B4, again choose across time slot UE as selected across time slot UE, execute B1；
B5, end flow process.
5. the method as described in claim 3 or 4 is it is characterised in that select across time slot UE described currently underload as described in calculating
Assignable code channel number on each underload time slot in time slot direction, specifically includes：
Determine the described variable quantity selecting the code channel number that across time slot UE takies before and after execution PS raising speed, and described currently underload
The idle code channel number of each underload time slot on the direction of time slot place；
If described idle code channel number sum is more than or equal to described variable quantity, respectively on the direction of described currently underload time slot place
The underload amount of load of each underload time slot round with the ratio of the average load amount of code channel, the ratio after rounding is underload with corresponding
Smaller in the idle code channel number of time slot, selectes across time slot UE increasable maximum code on corresponding underload time slot as described
Road number；
If described across time slot UE increasable maximum code channel number sum on each underload time slot of selecting is more than or equal to described variable quantity,
The code channel number that occupy described selected across time slot UE on described currently underload time slot and the value preset of increasable maximum code channel number
As the assignable code channel number of described currently underload time slot；And
By described variable quantity, the difference of increasable maximum code channel number is distributed to and described is currently owed with described currently underload time slot
On each underload time slot carrying on the direction of time slot place in addition to described currently underload time slot, will be each in addition to described currently underload time slot
The code channel number taking on underload time slot adds the code channel number sum of corresponding distribution as assignable code channel number on corresponding time slot.
6. a kind of congestion control device based on TD-SCDMA system is it is characterised in that include：
Determining unit, for each time slot to be controlled for TD SDMA TD-SCDMA system, executes：Determine and work as
The code channel number selecting across time slot user equipment UE occupancy before and after execution Packet Service PS operation of front time slot to be controlled；If described
Time slot to be controlled is congestion time slot, and determine current congestion time slot selectes the code channel that across time slot UE takies before and after execution PS reduction of speed
Number；
Processing unit, for the overload amount according to described current congestion time slot and described selected across time slot UE in execution PS fall
The code channel number taking before and after speed, determines the described variable quantity selecting the code channel number that across time slot UE takies before and after execution PS reduction of speed,
The overload amount of described current congestion time slot is the difference with underload thresholding for the average load of described current congestion time slot；
Using described variable quantity and the described smaller value selected in the code channel number that takies on current congestion time slot of across time slot UE as
Described selected across time slot UE diminishbb maximum code channel number on described current congestion time slot；
The overload amount and the ratio of the average load amount of code channel of described current congestion time slot is rounded, by the ratio after rounding
With described select across time slot UE on described current congestion time slot diminishbb maximum code channel number in smaller, as described choosing
Fixed across time slot UE diminishbb code channel number on described current congestion time slot；
Described variable quantity is divided with described across time slot UE difference of diminishbb code channel number on described current congestion time slot of selecting
Each time slot that across time slot UE includes described current congestion time slot on the direction of described current congestion time slot place is selected described in dispensing；
The code channel number that described selected across time slot UE is taken on described current congestion time slot deducts on described current congestion time slot
The difference of the code channel number of distribution and diminishbb code channel number is as assignable code channel number on described current congestion time slot；And
Select across time slot UE by described on the direction of described current congestion time slot place during each in addition to described current congestion time slot
The code channel number taking in gap deducts the code channel number of corresponding distribution as assignable code channel number on corresponding time slot, and carries out code channel
Distribution.
7. device as claimed in claim 6 is it is characterised in that also include updating block, the first selection unit and the first end
Unit, wherein：
Described processing unit, is additionally operable to, after carrying out code channel distribution, confirming whether code channel distribution is successful, if being allocated successfully, turning
To described updating block；If distribution is unsuccessful, turn to described first selection unit；
Described updating block, for updating the overload amount of described current congestion time slot, determines the overload amount after updating
Whether being more than zero, if being more than zero, turning to described first selection unit；If being less than or equal to zero, turn to described first end unit；
Described first selection unit, for again choosing across time slot UE as selected across time slot UE, turns to described determining unit；
Described first end unit, for terminating flow process.
If 8. device as claimed in claim 6 is it is characterised in that described time slot to be controlled is underload time slot, described determination list
Unit, specifically for：
Determine the code channel number selecting across time slot UE occupancy before and after execution PS raising speed of currently underload time slot；
Described processing unit, specifically for：
The underload amount of load according to described currently underload time slot and described selected across time slot UE occupancy before and after execution PS raising speed
Code channel number, calculates described selected across time slot UE assignable code channel on each underload time slot in described currently underload time slot direction
Number, the assignable code channel number according to calculating carries out code channel distribution；The underload amount of load of described currently underload time slot is described
The currently difference of the average load of underload time slot and overload threshold.
9. device as claimed in claim 8 is it is characterised in that also include the second selection unit and the second end unit, wherein：
Described processing unit, whether successful for after carrying out code channel distribution, confirming code channel distribution, if distribution is unsuccessful, turn
To the described second selection unit；If being allocated successfully, turn to described second end unit；
Described second selection unit, for again choosing across time slot UE as selected across time slot UE, turns to described determining unit；
Described second end unit, for terminating flow process.
10. device as claimed in claim 8 or 9 is it is characterised in that described processing unit, for calculate described select across when
Gap UE assignable code channel number on each underload time slot in described currently underload time slot direction, specifically for：
Determine the described variable quantity selecting the code channel number that across time slot UE takies before and after execution PS raising speed, and described currently underload
The idle code channel number of each underload time slot on the direction of time slot place；
If described idle code channel number sum is more than or equal to described variable quantity, respectively on the direction of described currently underload time slot place
The underload amount of load of each underload time slot round with the ratio of the average load amount of code channel, the ratio after rounding is underload with corresponding
Smaller in the idle code channel number of time slot, selectes across time slot UE increasable maximum code on corresponding underload time slot as described
Road number；
If described across time slot UE increasable maximum code channel number sum on each underload time slot of selecting is more than or equal to described variable quantity,
The code channel number that occupy described selected across time slot UE on described currently underload time slot and the value preset of increasable maximum code channel number
As the assignable code channel number of described currently underload time slot；And
By described variable quantity, the difference of increasable maximum code channel number is distributed to and described is currently owed with described currently underload time slot
On each underload time slot carrying on the direction of time slot place in addition to described currently underload time slot, will be each in addition to described currently underload time slot
The code channel number taking on underload time slot adds the code channel number sum of corresponding distribution as assignable code channel number on corresponding time slot.
A kind of 11. base stations are it is characterised in that include the described congestion based on TD-SCDMA system as arbitrary in claim 6-10
Control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310321025.7A CN103369590B (en) | 2013-07-26 | 2013-07-26 | Congestion control method and device based on TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) system, and base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310321025.7A CN103369590B (en) | 2013-07-26 | 2013-07-26 | Congestion control method and device based on TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) system, and base station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103369590A CN103369590A (en) | 2013-10-23 |
| CN103369590B true CN103369590B (en) | 2017-02-15 |
Family
ID=49369891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310321025.7A Expired - Fee Related CN103369590B (en) | 2013-07-26 | 2013-07-26 | Congestion control method and device based on TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) system, and base station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103369590B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1805320A (en) * | 2006-01-16 | 2006-07-19 | 中兴通讯股份有限公司 | Method for code channel allocation in TD-SCDMA access system |
| CN102186252A (en) * | 2011-05-16 | 2011-09-14 | 大唐移动通信设备有限公司 | Method and device for distributing code resource |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011059519A1 (en) * | 2009-11-12 | 2011-05-19 | Qualcomm Incorporated | Apparatus and method for facilitating dynamic time slot allocation |
-
2013
- 2013-07-26 CN CN201310321025.7A patent/CN103369590B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1805320A (en) * | 2006-01-16 | 2006-07-19 | 中兴通讯股份有限公司 | Method for code channel allocation in TD-SCDMA access system |
| CN102186252A (en) * | 2011-05-16 | 2011-09-14 | 大唐移动通信设备有限公司 | Method and device for distributing code resource |
Non-Patent Citations (1)
| Title |
|---|
| TD-SCDMA系统负载控制研究与应用;周亚枫;《计算机应用研究》;20111130;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103369590A (en) | 2013-10-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103891334B (en) | Radio resource scheduling between operator between frequency spectrum share control, operator in disturbance coordination method, and wireless communication system | |
| CN102026390B (en) | Base station and resource allocation method for realizing interference coordination among cells | |
| WO2012030271A1 (en) | Scheduling multiple users on a shared communication channel in a wireless communication system | |
| CN101883380B (en) | Method and device for selecting terminal during congestion processing | |
| CN106060944B (en) | Method of the multi-channel MAC protocols in conjunction with TDMA in car networking | |
| US10701706B2 (en) | Resource allocation method, apparatus, and system, and base station | |
| CN104981017B (en) | Uplink resource allocating method and base station | |
| CN104320808A (en) | Access network congestion control method, base station equipment and policy and charging rule function network element | |
| CN108024287A (en) | The method and apparatus of congestion control | |
| CN103068051A (en) | Distribution method and distribution device of downstream resources | |
| WO2016192810A1 (en) | Method and apparatus for configuring sounding reference symbol (srs) | |
| CN103546922A (en) | Method and device for balancing and scheduling loads in evolved base stations | |
| CN104981014B (en) | Descending resource allocation method and base station | |
| US9642152B2 (en) | Resource allocation method and base station | |
| CN103458520B (en) | A kind of distribution method of uplink frequency domain resources and device | |
| CN102196498B (en) | High speed carrier load allocation method | |
| CN101489267B (en) | Accommodation control method and apparatus | |
| CN103369590B (en) | Congestion control method and device based on TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) system, and base station | |
| Wang et al. | Network selection for secondary users in cognitive radio systems | |
| WO2007133136A1 (en) | Scheduler | |
| CN109041118A (en) | A kind of resource allocation methods and communication equipment | |
| CN106304267B (en) | A kind of virtual subdistrict selection method of customer-centric | |
| CN101925181B (en) | Method and device for scheduling multi-carrier system | |
| CN103414675A (en) | Single-user quick bit loading method for broadband power line OFDM system | |
| CN104902570B (en) | A kind of dynamics of channels configuration method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 Termination date: 20210726 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |