CN102104969A - Resource scheduling method and base station - Google Patents
Resource scheduling method and base station Download PDFInfo
- Publication number
- CN102104969A CN102104969A CN2009102612410A CN200910261241A CN102104969A CN 102104969 A CN102104969 A CN 102104969A CN 2009102612410 A CN2009102612410 A CN 2009102612410A CN 200910261241 A CN200910261241 A CN 200910261241A CN 102104969 A CN102104969 A CN 102104969A
- Authority
- CN
- China
- Prior art keywords
- user terminal
- gbr
- dispatching cycle
- scheduling
- transmission rate
- 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.)
- Pending
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to the wireless communication field and particularly discloses a resource scheduling method and a base station, which can ensure that user terminals with GBR (Gross Bandwidth Request) in a system acquire enough scheduling opportunities. The method provided by the invention comprises the following steps of: determining average transmission rate and data quantity to be transmitted of each user terminal in each user terminal during a scheduling period; according to the ratio of the GBR of each user terminal with guaranteed transmission rate GBR to the average transmission rate, determining a scheduling priority of each user terminal with GBR; preferentially distributing the scheduling resource for the user terminal with GBR during the next scheduling period according to the determined scheduling priority of each user terminal with GBR in the scheduling period. The method provided by the invention can ensure that the user terminal with GBR acquires enough scheduling opportunities; in addition, the satisfaction degree of users to the system is improved and the best proportional fairness between the average transmission rate of the user terminal and the GBR is realized.
Description
Technical field
The present invention relates to wireless communication field, especially relate to a kind of resource regulating method and base station.
Background technology
In 3-G (Generation Three mobile communication system), for downlink grouping traffic and the upstream packet business that higher rate is provided, improve spectrum utilization efficiency, 3GPP (3rd Generation Partnership Project) has introduced high speed downlink packet access (HSDPA in the standard of WCDMA and TD-SCDMA system, High SpeedDownlink Packet Access) characteristic and high speed uplink packet insert (HSUPA, High Speed UplinkPacket Access) characteristic, the descending peak rate that provides up to 2.8Mbit/s can be provided, be the up peak rate that 2.2Mbit/s is provided.
HSDPA is actually the set of some wireless enhanced technology, compares with the R4 system, and HSDPA mainly comes the enhanced system performance by revising air interface.Introduce high speed descending sharing channel (HS-DSCH) and function corresponding entity in the air, supported the transmission of high-speed downlink grouped data.HSDPA mainly operates in physical layer and the MAC layer of UE, NodeB, and Radio Link control (RLC) and PDCP (PDCP) are not done any change.From physical layer, mainly introduce Adaptive Modulation and Coding (AMC) and mix automatic repeat requests (HARQ) technology and strengthen data throughout.On superstructure, mainly be the processing capacity that has increased NodeB, introduce the MAC-hs entity at the MAC of NodeB and UE layer, be used for specially finishing the MAC layer operation relevant with HS-DSCH and with the protocol-dependent processing of HARQ.
The HSUPA system ascending reinforcement system that is otherwise known as is called for short the E-DCH system.As shown in Figure 1, be the sub-district part configuration diagram of HSUPA system, HSUPA obtains up user rate and the throughput of system that strengthens by using technology such as AMC, HARQ and fast dispatch.HSUPA has introduced the MAC-e/MAC-es entity at the MAC of UE and NodeB/RNC layer, finishes functions such as relevant scheduling, processed, feedback, re-transmission.Physical layer carrying aspect, HSUPA has introduced new enhancing dedicated channel (E-DCH) and corresponding E-DCH uplink physical channel (E-PUCH).Simultaneously, in order to finish control corresponding, scheduling and feedback, HSUPA has introduced E-DCH in physical layer and has inserted ascending control channel (E-RUCCH), E-DCH absolute grant channel (E-AGCH) and 3 physical control channels of E-DCH HARQ indicating channel (E-HICH) at random.
The fast dispatch method can make the multi-user more effectively use Radio Resource under the wireless environment of DYNAMIC COMPLEX, improves the throughput of whole sub-district, and it is controlling shared resource allocation, has determined the behavior of whole system to a great extent.Different dispatching methods, very big to the systematic function influence, dispatching method commonly used comprises: poll (RR, Round Robin) method, max carrier to interference (MAX C/I) method, direct ratio justice (PF, Proportional Fair) method.
(1) RR method
The RR method is not considered each user's channel condition, and adopting endless form is each user resource allocation, and each user occupies assignable time slot and power with identical probability.This method thinks that the transmission priority of different user equates, thereby has realized the best fairness between the user.
Though the RR method can guarantee the fairness between the user, but do not consider the time-varying characteristics of wireless channel, if the subscriber channel condition that is scheduled is poor, the user just might can not transmit data so, so the throughput of this method is poor, be difficult to make full use of system resource to reach the higher system capacity.This method is normally as the upper bound of system's fairness and the lower bound of method performance.
(2) MAX C/I method
MAX C/I method is a kind of dispatching method that relies on channel quality, promptly presses the quality of the instantaneous situation of channel and distinguishes priority order, transmits data by the user that channel condition is best.So just can allow system resource maximize the use, because the multi-user selects the existence of diversity gain, this reaches maximum with regard to the overall throughput that makes system.
Though MAX C/I dispatching method can reach maximum power system capacity and resource utilization, but this method might make most of users can not get system service, the user of low channel quality even meeting " being died of hunger ", user fairness is poor, therefore uses this method actually rare in real system.This method is normally as the upper bound of throughput of system.
(3) PF method
The PF method is the dispatching method that extensively adopts at present, and this method is distributed a corresponding priority level for each user, and at any one time, the user of sub-district medium priority maximum accepts service and transmission data.This priority is as follows:
In the formula, prio
i(t) be that i user is at t dispatching priority constantly; (C/I)
iBe that i user is in t carrier/interface ratio constantly; R
i(t) be the throughput of this user terminal in time slot t.
Although this method has been considered the subscriber channel condition, considered user's fairness again, the ratio that makes user terminal can access in the same sub-district speed and its present position that speed can be provided is constant substantially, has realized the compromise of throughput of system maximization with user fairness.
Common conversation class and all guaranteed bit rate of stream class service (Guaranteed Bit Rate, GBR) demand for services.Guarantee that bit rate is defined as: when the transmission rate of business during more than or equal to GBR, professional service quality is gratifying; When service transmission rate during less than GBR, QoS can not be accepted.
Existing dispatching method is to there being the user terminal of GBR demand, can will there be the user terminal of GBR demand to carry out priority scheduling according to the PF method, do not consider respectively to have the otherness between the user of GBR demand, special on the basis of desirable access control, also should be different for the dispatching priority between the user terminal of a plurality of GBR of having demands in the sub-district.So just a large amount of dispatcher can may be distributed to the less user terminal of GBR demand, and make the bigger user terminal of GBR demand may can not get enough dispatcher meetings, make that satisfied user terminal number is lower in the system.
Summary of the invention
The invention provides a kind of resource regulating method and base station, can have the user terminal of GBR demand can access enough dispatcher meetings in the assurance system, improve the user satisfaction of system.
A kind of resource regulating method comprises:
Determine in this dispatching cycle in each user terminal to be scheduled the average transmission rate of each user terminal and data volume to be transmitted;
According to the GBR of the user terminal of each guaranteed transmission rate GBR demand wherein and the ratio of its average transmission rate, define the dispatching priority of each user terminal of GBR demand respectively;
In this dispatching cycle, preferential dispatching priority according to each user terminal that the GBR demand is arranged of determining, the user terminal that is followed successively by the GBR demand distributes the scheduling resource of the next one in dispatching cycle.
Wherein, the average transmission rate of determining a user terminal in each user terminal comprises:
In this dispatching cycle, when the data that user terminal transmits according to the scheduling resource that distributed in the last dispatching cycle are correctly received, determine the correct data volume that receives;
When the data volume of correct reception less than user terminal on a dispatching cycle wait to transmit data volume the time, determine that the instantaneous transmission speed of user terminal is: the correct data volume that receives is divided by the time span of a dispatching cycle;
Determine the user terminal average transmission rate Lamda of this dispatching cycle
i(n) be:
Lamda
i(n)＝(1-pLamda)·Lamda
i(n-1)+pLamda·R′
i(n)
Wherein, Lamda
i(n) be the average transmission rate of this scheduling of user terminal, Lamda
i(n-1) be the average transmission rate of a dispatching cycle on the user terminal, pLamda is the smothing filtering factor, R '
i(n) be the instantaneous transmission speed of user terminal.
Further, the average transmission rate of determining a user terminal in each user terminal also comprises:
In this dispatching cycle, do not receive the data of this user terminal according to the scheduling resource transmission that distributed in the last dispatching cycle, during the error in data that perhaps receives, determine the average transmission rate Lamda of this scheduling of user terminal
i(n) be:
Lamda
i(n)＝(1-pLamda)·Lamda
i(n-1)
Wherein, Lamda
i(n) be the average transmission rate of this scheduling of user terminal, pLamda is the smothing filtering factor, Lamda
i(n-1) be the average transmission rate of a dispatching cycle on the user terminal.
Further, the average transmission rate of determining a user terminal in each user terminal also comprises:
When the data volume of correct reception more than or equal to user terminal on a dispatching cycle wait to transmit data volume the time, determine that the average transmission rate of user terminal this dispatching cycle equals the average transmission rate of a dispatching cycle.
Wherein, described respectively according to the GBR of the user terminal of each guaranteed transmission rate GBR demand wherein and the ratio of its average transmission rate, define after the dispatching priority of each user terminal of GBR demand, when several users' dispatching priority is identical, then each identical user terminal of dispatching priority is redefined priority according to poll RR method.
Further, described method also comprises:
In this dispatching cycle, finish and scheduling resource when residue is arranged as each scheduling of user terminals of GBR demand, according to the priority of each user terminal that does not have the GBR demand, be followed successively by the user terminal that does not have the GBR demand and distribute the scheduling resource of the next one in dispatching cycle.
Wherein, the priority of each user terminal of the described GBR of not having demand according to the fair PF method of poll RR method, max carrier to interference MAX C/I method, direct ratio, the fair APF method of self adaptation direct ratio, improved maximum weighted delay time preferential M-LWPF method, the fair LDPF method of direct ratio estimating priority scheduling EPS method or rely on load determines.
Wherein, the data volume to be transmitted of a user terminal comprises in described definite each user terminal:
In this dispatching cycle, carry schedule information SI in the data of user terminal according to the scheduling resource transmission that distributed in the last dispatching cycle, then determine the data volume to be transmitted of this scheduling of user terminal according to SI;
In this dispatching cycle, do not carry schedule information SI in the data of user terminal according to the scheduling resource transmission that distributed in the last dispatching cycle, then determined the transmitted data amount that user terminal is scheduled in the last dispatching cycle, and the data volume to be transmitted of definite this scheduling of user terminal is: last one dispatching cycle user terminal data volume to be transmitted deduct the transmitted data amount that user terminal is scheduled.
A kind of base station comprises:
Determining unit is used for determining in this dispatching cycle of each user terminal to be scheduled the average transmission rate of each user terminal and data volume to be transmitted;
First priority determining unit is used for respectively defining the dispatching priority of each user terminal of GBR demand according to the wherein GBR of the user terminal of each guaranteed transmission rate GBR demand and the ratio of its average transmission rate;
First scheduling unit was used in this dispatching cycle, preferential dispatching priority according to each user terminal that the GBR demand is arranged of determining, and the user terminal that is followed successively by the GBR demand distributes the scheduling resource of the next one in dispatching cycle.
Further, described base station also comprises:
Second priority determining unit is used for the priority according to each user terminal that the fair PF method of poll RR method, max carrier to interference MAX C/I method, direct ratio, the fair APF method of self adaptation direct ratio, improved maximum weighted are delayed time preferential M-LWPF method, the fair LDPF method of direct ratio estimating priority scheduling EPS method or rely on load determines not have the GBR demand;
Second scheduling unit, be used in this dispatching cycle, finish and scheduling resource when residue is arranged as each scheduling of user terminals of GBR demand, according to the priority of each user terminal that does not have the GBR demand, be followed successively by the user terminal that does not have the GBR demand and distribute the scheduling resource of the next one in dispatching cycle.
The embodiment of the invention provides a kind of resource regulating method, to the user terminal of GBR demand is arranged in the HSUPA network, preferentially carries out scheduling of resource; And to each user terminal of GBR demand is arranged, determine the dispatching priority of each user terminal, and dispatch by this priority according to the ratio size of the average data transfer rate of the GBR of each user terminal demand and this user terminal.Like this to the user of GBR demand is arranged, when the ratio of the average data transfer rate of its GBR and this user terminal is big more, just can preferentially obtain the dispatcher meeting, in case and its average transmission rate gets a promotion, next dispatching cycle its priority can reduce, there is the user terminal of GBR demand will preferentially obtain the dispatcher meeting so, so also just can be so that there is the user of GBR demand can obtain enough dispatcher meetings.Finally, under the situation of desirable access control, the GBR of each user terminal demand and the ratio of its average transmission rate are close to 1, thereby reach the equitable proportion of the best between user terminal average transmission rate and the GBR.
Description of drawings
Fig. 1 is the sub-district part configuration diagram of HSUPA system;
Fig. 2 is a HSUPA system data subframe structure schematic diagram;
The flow chart of the resource regulating method that Fig. 3 provides for the embodiment of the invention;
The structural representation of the base station that Fig. 4 provides for the embodiment of the invention.
Embodiment
The wireless communication system dispatching method is not considered the GBR demand of user terminal in the prior art, a large amount of dispatcher can be able to be distributed to the user terminal that does not have the GBR demand, and the user terminal that the GBR demand is arranged can not get enough dispatcher meetings, makes that satisfied user terminal number is lower in the system.
At the deficiencies in the prior art and defective, the embodiment of the invention provides a kind of resource regulating method, to the user terminal of GBR demand is arranged in the HSUPA network, preferentially carries out scheduling of resource; And to each user terminal of GBR demand is arranged, ratio size according to the average data transfer rate of the GBR of each user terminal demand and this user terminal is carried out the dispatching priority ordering to each user terminal, and dispatch by this priority, exhaust up to scheduling resource; After the user of GBR demand had dispatched, scheduling resource still had residue, then other users in the dispatching patcher successively again.Method by the embodiment of the invention, to the user of GBR demand is arranged, when the ratio of the average data transfer rate of its GBR and this user terminal is big more, illustrate that average transmission rate can not satisfy user's GBR demand more, also just need preferentially obtain the dispatcher meeting, and when its average transmission rate promoted to some extent, then its priority can reduce, and other users will preferentially obtain the dispatcher meeting.By the method for the embodiment of the invention, can be so that there be the user of GBR demand to obtain enough dispatcher meetings.Finally, under the situation of desirable access control, the GBR of each user terminal demand and the ratio of its average transmission rate are close to 1, thereby reach the equitable proportion of the best between user terminal average transmission rate and the GBR.
The embodiment of the invention can be supported the third generation (3G) wireless communication technology TD-SCDMA communication system with a kind of, being example with the HSUPA system of TD-SCDMA communication system particularly is described the dispatching method of wireless communication system of the present invention, but the present invention is suitable for other wireless communication system except that above-mentioned wireless communication system equally, as the situation of WCDMA wireless communication system or CDMA2000 wireless communication system.
Packet scheduling strategy below in conjunction with the TDD HSUPA of TD-SCDMA system is described in detail the present invention, as shown in Figure 2, be HSUPA data burst structure, 6 business time-slots are divided into 3 ascending time slots and 3 descending time slots, and ascending time slot is used for the authorization requests of transmission user terminal, up E-DCH control information and upstream data; Descending time slot is used for the scheduling resource authorization message of transmission user terminal and the ACK/NACK information of feedback transmission piece.
As shown in Figure 3, the resource regulating method for the embodiment of the invention provides specifically comprises:
S301: in the ascending time slot of this dispatching cycle, judge whether to receive the data of user terminal according to the scheduling resource transmission that distributes a last dispatching cycle, judged result when being, execution in step S302, judged result when denying, execution in step S303;
In the ascending time slot of this dispatching cycle, the scheduling resource that distribute corresponding dispatching cycle before each user terminal basis is to the base station transmits data, it can be the scheduling resource that distributes a last dispatching cycle, also can be the scheduling resource that distributes a last dispatching cycle, the concrete time interval be determined by base station side.
S302: judge whether the transmission data receive correct, judged result when being, execution in step S304, judged result when denying, execution in step S303;
S303: the average transmission rate according to the average transmission rate and the smothing filtering factor of a dispatching cycle on the user terminal are determined this scheduling of user terminal, continue execution in step S309;
Wherein, the average transmission rate Lamda of this scheduling of user terminal
i(n) be:
Lamda
i(n)＝(1-pLamda)·Lamda
i(n-1)
Wherein, Lamda
i(n) be the average transmission rate of this scheduling of user terminal, pLamda is the smothing filtering factor, Lamda
i(n-1) be the average transmission rate of a dispatching cycle on the user terminal;
S304: determine the correct transmitted data amount that receives;
S305: whether the transmitted data amount that correct judgment receives less than the data volume to be transmitted of the last dispatching cycle of this user terminal, judged result when being, execution in step S306, judged result is when denying, execution in step S308;
Wherein, judged result for not the time, promptly user terminal the transmitted data amount of the ascending time slot of this scheduling more than or equal to this user terminal on the data volume to be transmitted of a dispatching cycle.Wherein, the transmitted data amount of user terminal ascending time slot is TBSi=23 and TEBSi=0 greater than the situation that transmits data volume of waiting of a dispatching cycle on this user terminal, at this moment, explanation last one dispatching cycle user terminal do not have data need send but network side given mandate, this moment, the user can send SI information, so TBSi=23 and TEBSi=0.
S306:, obtain the instantaneous transmission speed of user terminal according to the transmitted data amount of user terminal;
Wherein, instantaneous transmission speed R '
i(n) be specially:
In the formula, TBS
iBe the transmitted data amount of user terminal, T is the time span of a dispatching cycle;
S307: determined the average transmission rate of this scheduling according to instantaneous transmission speed, the average transmission rate of a last dispatching cycle and the smothing filtering factor, and continued execution in step S309;
Wherein, the average transmission rate Lamda of this scheduling of user terminal
i(n) be:
Lamda
i(n)＝(1-pLamda)·Lamda
i(n-1)+pLamda·R′
i(n)
In the formula, Lamda
i(n) be the average transmission rate of this scheduling of user terminal, Lamda
i(n-1) be the average transmission rate of a dispatching cycle on the user terminal, pLamda is the smothing filtering factor, R '
i(n) be instantaneous transmission speed;
S308: the average transmission rate of this scheduling was equaled the average transmission rate of a last dispatching cycle, continue execution in step S309;
When user terminal the transmitted data amount of the ascending time slot of this scheduling more than or equal to this user terminal on a dispatching cycle wait to transmit data volume the time, can avoid reason less and make its transmission rate too small like this, and cause the too high situation of priority in the data volume of user terminal itself.Wherein, the average transmission rate Lamda of this scheduling of user terminal
i(n) be:
Lamda
i(n)＝Lamda
i(n-1)
Above step is a process of independently determining the average transmission rate of each user terminal, wherein, among the step S301, judged result is not for the time, can directly finish and in step S302, be judged as when denying also can directly finish, and the execution of step S303 also can be determined the average transmission rate of user terminal can guarantee that the data that do not receive the data of user terminal or receive user terminal in ascending time slot are mistake the time;
Certainly, in step S305, judged result is not for the time, also can directly finish, the execution of step S307 can guarantee the data volume that in ascending time slot, correctly receives more than or equal to a dispatching cycle on the user terminal wait to transmit data volume the time, also can determine the average transmission rate of user terminal;
S309: the data to be transmitted amount of determining this scheduling of user terminal;
If in ascending time slot, receive the SI of reporting of user, then determine the data volume to be transmitted of user terminal according to SI; If do not receive the SI of user terminal in ascending time slot, then the transmission data that are scheduled that deducted the user terminal of a last dispatching cycle according to the data volume to be transmitted of the user terminal of a last dispatching cycle are determined the data to be transmitted amount of this dispatching cycle;
Wherein, when initial, meeting SI reporting schedule information in each accessing user terminal to network, the data volume to be transmitted of each user terminal is determined in the base station according to the SI of each user terminal to send up;
Wherein, carry the indicated value of waiting to transmit data volume of user terminal this moment among the SI of user terminal to send up, this indicated value is specially an index value in SI, expression be an interval range, then the base station maximum of determining this interval range is the data volume to be transmitted of user terminal this moment;
Determined the transmitted data amount that user terminal is scheduled according to the modulation system to spreading factor, timeslot number and the user terminal of user terminal mandate in the last dispatching cycle, concrete computational methods are:
Dummy_TBS
i＝88×(MF
i+1)×16/SF
i*SlotNum
i
Wherein, Dummy_TBS
iBe the transmitted data amount that user terminal is scheduled, NF
iAccording to the selected modulation system value of user terminal, when modulation system is QPSK, MF
i=0, when modulation system is 16QAM, MF
i=1; SF
iBe spreading factor; SlotNum
iBe timeslot number;
S310: determine whether user terminal has the GBR demand, will have the user terminal of GBR demand to put into high-priority queue;
S311: in high-priority queue, obtain the GBR of each user terminal demand, and the ratio of the average transmission rate of the GBR of definite each user terminal demand and this user terminal;
S312: the dispatching priority that defines each user terminal of GBR demand according to this ratio;
Wherein, ratio is big more, the dispatching priority of this user terminal is high more, ratio is more little, the dispatching priority of this user terminal is low more, and to the user terminal that the GBR demand is arranged of first access network, this ratio of initialization is 0, promptly to the user terminal that the GBR demand is arranged of first access network, its dispatching priority is minimum;
Wherein, identical as several users' dispatching priority, then according to RR method all the user terminal rearrangements definite priority identical to dispatching priority;
S313: according to each terminal use's dispatching priority allocation schedule resource;
Successively each user terminal that the GBR demand is arranged is distributed the scheduling resource of next dispatching cycle according to dispatching priority, use up up to scheduling resource;
S314: after the scheduling of user terminals of GBR demand finished, scheduling resource still had residue, then according to the priority that does not have each user terminal of GBR demand, successively to there not being the user terminal allocation schedule resource of GBR demand;
Wherein, do not have the GBR demand each user terminal priority can be according to poll RR method, max carrier to interference MAX C/I method, the fair PF method of direct ratio, self adaptation direct ratio justice (APF, AdaptiveProportional Fair) method, preferential (M-LWPF, the Modified-LargestWeighted Delay First) method of improved maximum weighted time-delay, estimate priority scheduling EPS (Estimating Priority Scheduling) method, the conventional sort methods such as fair LDPF (the Load-dependent Proportional Fair) method of direct ratio that rely on load are determined.
Wherein, each user terminal in the above-mentioned steps all refers to each user terminal to be scheduled in this dispatching cycle.
Wherein, in the above-mentioned steps, the execution of S309 can be carried out in any time after the step S308, did not limit the execution sequence of S309 in an embodiment of the present invention.
Said method is the embodiment of an optimum of the present invention, and wherein step S301～step S308 is the method for the optimum of the average transmission rate of definite user terminal.The process of step S309～S314 for user terminal being dispatched according to the average transmission rate of the user terminal of determining.
As shown in Figure 4, the embodiment of the invention also provides a kind of base station of adopting above-mentioned resource regulating method, comprising:
Determining unit 41 is used for determining in this dispatching cycle of each user terminal to be scheduled the average transmission rate of each user terminal and data volume to be transmitted;
First priority determining unit 42 is used for respectively defining the dispatching priority of each user terminal of GBR demand according to the wherein GBR of the user terminal of each guaranteed transmission rate GBR demand and the ratio of its average transmission rate;
Preferable, the base station also comprises:
Second priority determining unit 44, be used for according to the fair PF method of poll RR method, max carrier to interference MAX C/I method, direct ratio, the fair APF method of self adaptation direct ratio, improved maximum weighted delay time preferential M-LWPF method, estimate priority scheduling EPS method, the priority of each user terminal that the conventional sort methods such as the fair LDPF method of direct ratio that rely on load determine not have the GBR demand;
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. a resource regulating method is characterized in that, comprising:
Determine in this dispatching cycle in each user terminal to be scheduled the average transmission rate of each user terminal and data volume to be transmitted;
According to the GBR of the user terminal of each guaranteed transmission rate GBR demand wherein and the ratio of its average transmission rate, define the dispatching priority of each user terminal of GBR demand respectively;
In this dispatching cycle, preferential dispatching priority according to each user terminal that the GBR demand is arranged of determining, the user terminal that is followed successively by the GBR demand distributes the scheduling resource of the next one in dispatching cycle.
2. the method for claim 1 is characterized in that, determines that the average transmission rate of a user terminal in each user terminal comprises:
In this dispatching cycle, when the data that user terminal transmits according to the scheduling resource that distributed in the last dispatching cycle are correctly received, determine the correct data volume that receives;
When the data volume of correct reception less than user terminal on a dispatching cycle wait to transmit data volume the time, determine that the instantaneous transmission speed of user terminal is: the correct data volume that receives is divided by the time span of a dispatching cycle;
Determine the user terminal average transmission rate Lamda of this dispatching cycle
i(n) be:
Lamda
i(n)＝(1-pLamda)·Lamda
i(n-1)+pLamda·R′
i(n)
Wherein, Lamda
i(n) be the average transmission rate of this scheduling of user terminal, Lamda
i(n-1) be the average transmission rate of a dispatching cycle on the user terminal, pLamda is the smothing filtering factor, R '
i(n) be the instantaneous transmission speed of user terminal.
3. method as claimed in claim 2 is characterized in that, determines that the average transmission rate of a user terminal in each user terminal also comprises:
In this dispatching cycle, do not receive the data of this user terminal according to the scheduling resource transmission that distributed in the last dispatching cycle, during the error in data that perhaps receives, determine the average transmission rate Lamda of this scheduling of user terminal
i(n) be:
Lamda
i(n)＝(1-pLamda)·Lamda
i(n-1)
Wherein, Lamda
i(n) be the average transmission rate of this scheduling of user terminal, pLamda is the smothing filtering factor, Lamda
i(n-1) be the average transmission rate of a dispatching cycle on the user terminal.
4. as claim 2 or 3 described methods, it is characterized in that, determine that the average transmission rate of a user terminal in each user terminal also comprises:
When the data volume of correct reception more than or equal to user terminal on a dispatching cycle wait to transmit data volume the time, determine that the average transmission rate of user terminal this dispatching cycle equals the average transmission rate of a dispatching cycle.
5. as claim 1,2 or 3 described methods, it is characterized in that, described respectively according to the GBR of the user terminal of each guaranteed transmission rate GBR demand wherein and the ratio of its average transmission rate, define after the dispatching priority of each user terminal of GBR demand, when several users' dispatching priority is identical, then each identical user terminal of dispatching priority is redefined priority according to poll RR method.
6. as claim 1,2 or 3 described methods, it is characterized in that described method also comprises:
In this dispatching cycle, finish and scheduling resource when residue is arranged as each scheduling of user terminals of GBR demand, according to the priority of each user terminal that does not have the GBR demand, be followed successively by the user terminal that does not have the GBR demand and distribute the scheduling resource of the next one in dispatching cycle.
7. method as claimed in claim 6, it is characterized in that, the priority of each user terminal of the described GBR of not having demand according to the fair PF method of poll RR method, max carrier to interference MAX C/I method, direct ratio, the fair APF method of self adaptation direct ratio, improved maximum weighted delay time preferential M-LWPF method, the fair LDPF method of direct ratio estimating priority scheduling EPS method or rely on load determines.
8. the method for claim 1 is characterized in that, the data volume to be transmitted of a user terminal comprises in described definite each user terminal:
In this dispatching cycle, carry schedule information SI in the data of user terminal according to the scheduling resource transmission that distributed in the last dispatching cycle, then determine the data volume to be transmitted of this scheduling of user terminal according to SI;
In this dispatching cycle, do not carry schedule information SI in the data of user terminal according to the scheduling resource transmission that distributed in the last dispatching cycle, then determined the transmitted data amount that user terminal is scheduled in the last dispatching cycle, and the data volume to be transmitted of definite this scheduling of user terminal is: last one dispatching cycle user terminal data volume to be transmitted deduct the transmitted data amount that user terminal is scheduled.
9. a base station is characterized in that, comprising:
Determining unit is used for determining in this dispatching cycle of each user terminal to be scheduled the average transmission rate of each user terminal and data volume to be transmitted;
First priority determining unit is used for respectively defining the dispatching priority of each user terminal of GBR demand according to the wherein GBR of the user terminal of each guaranteed transmission rate GBR demand and the ratio of its average transmission rate;
First scheduling unit was used in this dispatching cycle, preferential dispatching priority according to each user terminal that the GBR demand is arranged of determining, and the user terminal that is followed successively by the GBR demand distributes the scheduling resource of the next one in dispatching cycle.
10. base station as claimed in claim 9 is characterized in that, also comprises:
Second priority determining unit is used for the priority according to each user terminal that the fair PF method of poll RR method, max carrier to interference MAX C/I method, direct ratio, the fair APF method of self adaptation direct ratio, improved maximum weighted are delayed time preferential M-LWPF method, the fair LDPF method of direct ratio estimating priority scheduling EPS method or rely on load determines not have the GBR demand;
Second scheduling unit, be used in this dispatching cycle, finish and scheduling resource when residue is arranged as each scheduling of user terminals of GBR demand, according to the priority of each user terminal that does not have the GBR demand, be followed successively by the user terminal that does not have the GBR demand and distribute the scheduling resource of the next one in dispatching cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102612410A CN102104969A (en) | 2009-12-21 | 2009-12-21 | Resource scheduling method and base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102612410A CN102104969A (en) | 2009-12-21 | 2009-12-21 | Resource scheduling method and base station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102104969A true CN102104969A (en) | 2011-06-22 |
Family
ID=44157410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102612410A Pending CN102104969A (en) | 2009-12-21 | 2009-12-21 | Resource scheduling method and base station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102104969A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013056568A1 (en) * | 2011-10-19 | 2013-04-25 | 华为技术有限公司 | Method, device and system for improving user experience of small flow users |
| CN103957529A (en) * | 2014-04-17 | 2014-07-30 | 北京理工大学 | Learning-based multi-criteria user selection method of amorphous cell |
| CN104981017A (en) * | 2014-04-02 | 2015-10-14 | 成都鼎桥通信技术有限公司 | Uplink resource allocation method and base station thereof |
| CN104981020A (en) * | 2014-04-02 | 2015-10-14 | 成都鼎桥通信技术有限公司 | Uplink GBR (Guaranteed Bit Rate) service scheduling method and base station |
| CN105307277A (en) * | 2014-06-27 | 2016-02-03 | 普天信息技术有限公司 | Method and system for determining scheduling data size |
| WO2018032243A1 (en) * | 2016-08-15 | 2018-02-22 | 华为技术有限公司 | Data transmission method, device, and system |
| CN108401223A (en) * | 2017-02-08 | 2018-08-14 | 大唐移动通信设备有限公司 | A kind of cell switching method and device |
| CN109299376A (en) * | 2018-10-26 | 2019-02-01 | 深圳点猫科技有限公司 | It is a kind of that method and device is searched for generally based on education cloud operating system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1968195A (en) * | 2006-05-29 | 2007-05-23 | 华为技术有限公司 | Communication system scheduling method |
| CN101060474A (en) * | 2006-04-20 | 2007-10-24 | 大唐移动通信设备有限公司 | A service quality assurance-based grouping service wireless resource dispatching method |
| CN101572596A (en) * | 2008-04-29 | 2009-11-04 | 大唐移动通信设备有限公司 | Method and device for confirming and dispatching priority of non-ensured bit rate service |
| CN101621457A (en) * | 2008-07-01 | 2010-01-06 | 大唐移动通信设备有限公司 | Multi-service scheduling method and system |
-
2009
- 2009-12-21 CN CN2009102612410A patent/CN102104969A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101060474A (en) * | 2006-04-20 | 2007-10-24 | 大唐移动通信设备有限公司 | A service quality assurance-based grouping service wireless resource dispatching method |
| CN1968195A (en) * | 2006-05-29 | 2007-05-23 | 华为技术有限公司 | Communication system scheduling method |
| CN101572596A (en) * | 2008-04-29 | 2009-11-04 | 大唐移动通信设备有限公司 | Method and device for confirming and dispatching priority of non-ensured bit rate service |
| CN101621457A (en) * | 2008-07-01 | 2010-01-06 | 大唐移动通信设备有限公司 | Multi-service scheduling method and system |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013056568A1 (en) * | 2011-10-19 | 2013-04-25 | 华为技术有限公司 | Method, device and system for improving user experience of small flow users |
| CN104981017B (en) * | 2014-04-02 | 2018-09-25 | 成都鼎桥通信技术有限公司 | Uplink resource allocating method and base station |
| CN104981017A (en) * | 2014-04-02 | 2015-10-14 | 成都鼎桥通信技术有限公司 | Uplink resource allocation method and base station thereof |
| CN104981020A (en) * | 2014-04-02 | 2015-10-14 | 成都鼎桥通信技术有限公司 | Uplink GBR (Guaranteed Bit Rate) service scheduling method and base station |
| CN104981020B (en) * | 2014-04-02 | 2019-03-05 | 成都鼎桥通信技术有限公司 | The dispatching method of uplink GBR traffic and base station |
| CN103957529A (en) * | 2014-04-17 | 2014-07-30 | 北京理工大学 | Learning-based multi-criteria user selection method of amorphous cell |
| CN103957529B (en) * | 2014-04-17 | 2017-08-01 | 北京理工大学 | A kind of multiple criteria user choosing method of the amorphous cell based on study |
| CN105307277B (en) * | 2014-06-27 | 2019-01-18 | 普天信息技术有限公司 | Scheduling data volume determines method and system |
| CN105307277A (en) * | 2014-06-27 | 2016-02-03 | 普天信息技术有限公司 | Method and system for determining scheduling data size |
| WO2018032243A1 (en) * | 2016-08-15 | 2018-02-22 | 华为技术有限公司 | Data transmission method, device, and system |
| CN109479271A (en) * | 2016-08-15 | 2019-03-15 | 华为技术有限公司 | Data transmission method, device and system |
| CN108401223A (en) * | 2017-02-08 | 2018-08-14 | 大唐移动通信设备有限公司 | A kind of cell switching method and device |
| CN108401223B (en) * | 2017-02-08 | 2021-02-19 | 大唐移动通信设备有限公司 | Cell switching method and device |
| CN109299376A (en) * | 2018-10-26 | 2019-02-01 | 深圳点猫科技有限公司 | It is a kind of that method and device is searched for generally based on education cloud operating system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100566295C (en) | A kind of Packet Service scheduling method for wireless resource based on service quality guarantee | |
| CN101902817B (en) | Uplink radio resource dispatching method and device for wireless communication system | |
| CN102104969A (en) | Resource scheduling method and base station | |
| CN101610551B (en) | Resource scheduling method for HSUPA | |
| CN101114851B (en) | Power control method and device for HSDPA | |
| CN101686196B (en) | Service scheduling method and service scheduling device | |
| CN100592817C (en) | A method and device for realizing the dynamic QoS control during the dispatching of HSUPA base station | |
| CN102104968A (en) | Resource scheduling method and base station | |
| CN100512565C (en) | Method for enhancing wireless communication up-grouping dispatch | |
| CN100466819C (en) | User dispatching method and system in uplink enhanced link | |
| CN100550691C (en) | The method of dispatching group data transmission | |
| CN101212782B (en) | High-speed uplink packet access scheduling method and system | |
| CN102083221A (en) | Resource scheduling method and device based on HSDPA (high speed downlink packet access) | |
| CN101257371B (en) | Method and device for processing wireless communication uplink grouping scheduling | |
| CN101860916B (en) | Resource scheduling method and device | |
| CN101141770A (en) | Method and device for dynamically regulating system channel resource | |
| CN101345906B (en) | Wireless resource allocation method and apparatus of high speed grouping access system | |
| CN101616057A (en) | The methods, devices and systems that resource discharged during a kind of uplink strengthened | |
| CN101127725A (en) | Method, device and system for channel unit scheduling | |
| CN100536603C (en) | Mobile communication system scheduling method | |
| CN101925111A (en) | Method and device for determining scheduling strategy | |
| CN101316404B (en) | Method for improving scheduling efficiency of wireless communication ascending packet | |
| CN101146318B (en) | Uplink load control fault correction method and device | |
| US20120026907A1 (en) | Base station, radio communication system, and radio communication method | |
| CN100369502C (en) | Direct proportion fair dispatch method for base station selective service terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110622 |