CN103582134A - High-speed downlink shared channel scheduling method and device - Google Patents

High-speed downlink shared channel scheduling method and device Download PDF

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CN103582134A
CN103582134A CN201210263956.1A CN201210263956A CN103582134A CN 103582134 A CN103582134 A CN 103582134A CN 201210263956 A CN201210263956 A CN 201210263956A CN 103582134 A CN103582134 A CN 103582134A
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resources utilization
dispatched
dispatch
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蔡建恒
刘梅
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Huawei Technologies Co Ltd
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Abstract

The embodiment of the invention provides a high-speed downlink shared channel scheduling method and device. The high-speed downlink shared channel scheduling method comprises the steps that downlink resources are distributed to a plurality of first UE in advance, and resource utilization efficiency is generated for the first UE according to the obtained data volumes of the downlink data of the first UE and the pre-distributed downlink resources; the first UE is scheduled according to the resource utilization efficiency of the first UE. According to the high-speed downlink shared channel scheduling method and device, the actual throughput capacity of the system and the use ratio of the resources can be improved, and the consumption of energy can be reduced.

Description

Dispatch of down going sharing channel in high speed method and device thereof
Technical field
The embodiment of the present invention relates to communication technical field, relates in particular to a kind of dispatch of down going sharing channel in high speed method and device thereof.
Background technology
Therefore in cellular communication system, there will be the situation that has a plurality of users and base station to communicate.A plurality of subscriber equipmenies (User Equipment is called for short UE) can use identical frequency band to communicate with base station simultaneously.In down link, a plurality of data flow can be launched to different UE in base station.
Therefore, at third generation partner program (The3rd Generation Partnership Project, abbreviation 3GPP) in R5 version, by high speed downlink packet access (High Speed Downlink Packet Access, abbreviation HSDPA) technology is incorporated into Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, abbreviation WCDMA) in communication system, and realized descending high speed data transfer by a series of technology.That is to say, all users can by code divide and time form-separating, the high speed descending sharing channel that realization is introduced in HSDPA technology (High-Speed Downlink Shared Channel, be called for short HS-DSCH) carry out transfer of data, by HSDPA, dispatch and can realize sharing of downlink resource.
In prior art, there is multiple HSDPA dispatching method, yet, exist certain customers to take certain system resource and but only send the situation of data volume seldom, caused the waste of system resource and the reduction of throughput of system.
Summary of the invention
The embodiment of the present invention provides a kind of dispatch of down going sharing channel in high speed method and device thereof, to avoid the waste of system resource and the reduction of throughput of system.
First aspect, the embodiment of the present invention provides a kind of dispatch of down going sharing channel in high speed method, comprising:
For a plurality of UE preassignment downlink resources respectively, according to get each described in the data volume of downlink data of a UE and described preallocated downlink resource generate the level of resources utilization for a UE described in each;
According to the level of resources utilization of a UE described in each, described a plurality of UE are dispatched.
In the possible implementation of the first, described basis get each described in the data volume of downlink data of a UE and described preallocated downlink resource for a UE described in each generates the level of resources utilization, comprising:
According to the data volume of the preallocated described channel code of a UE and/or described power and described data to be sent described in each, generate the described level of resources utilization.
In conjunction with first aspect or the possible implementation of the first of first aspect, in the possible implementation of the second, describedly according to the level of resources utilization of a UE described in each, described a plurality of UE are dispatched, comprising:
According to the level of resources utilization of a UE described in each, from high to low described a plurality of UE are dispatched.
In conjunction with first aspect or the possible implementation of the first of first aspect, in the third possible implementation, describedly according to the level of resources utilization of a UE described in each, described a plurality of UE are dispatched, comprising:
Obtain the actual schedule speed of a UE described in each, according to the level of resources utilization of a UE described in each and actual schedule speed, described a plurality of UE are dispatched.
In conjunction with the third possible implementation of first aspect, in the 4th kind of possible implementation, describedly according to the level of resources utilization of a UE described in each and actual schedule speed, described a plurality of UE are dispatched, comprising:
Apply the priority that following formula generates a UE described in each:
Figure BDA00001941259800021
wherein, P is priority, and E is the level of resources utilization, and r is actual schedule speed;
According to the priority of a UE described in each, described a plurality of UE are dispatched.
In conjunction with first aspect or the possible implementation of the first of first aspect, in the 5th kind of possible implementation, describedly according to the level of resources utilization of a UE described in each, described a plurality of UE are dispatched, comprising:
Obtain momentary rate and the actual schedule speed of a UE described in each, according to the level of resources utilization of a UE described in each, momentary rate and actual schedule speed, described a plurality of UE are dispatched.
In the 5th kind of possible implementation of first aspect, in the 6th kind of possible implementation, describedly according to the level of resources utilization of a UE described in each, momentary rate and actual schedule speed, described a plurality of UE are dispatched, comprising:
Apply the priority that following formula generates a UE described in each:
Figure BDA00001941259800031
wherein, P is priority, and R is momentary rate, and E is the level of resources utilization, and r is actual schedule speed, λ 1be the first weight, λ 2it is the second weight;
According to the priority of a UE described in each, described a plurality of UE are dispatched.
In conjunction with first aspect or the possible implementation of the first of first aspect, in the 7th kind of possible implementation, described is before a plurality of UE preassignment downlink resources, and described method also comprises:
According to the bit rate information that guarantees of a plurality of UE that get, determine a described a plurality of UE, remaining UE is defined as to the 2nd UE;
Described according to the level of resources utilization of a UE described in each, described a plurality of UE are dispatched after, described method also comprises:
According to remaining downlink resource after described a plurality of UE are dispatched, for a plurality of described the 2nd UE preassignment downlink resources, according to get each described in the data volume of downlink data of the 2nd UE and described preallocated downlink resource generate the level of resources utilization for the 2nd UE described in each;
According to the level of resources utilization of the 2nd UE described in each, described a plurality of the 2nd UE are dispatched.
The 7th kind of possible implementation in first aspect, in the 8th kind of possible implementation, described basis get each described in the data volume of downlink data of a UE and described preallocated downlink resource for after described in each, a UE generates the level of resources utilization, described according to the level of resources utilization of a UE described in each, described a plurality of UE are dispatched before, described method also comprises:
If the level of resources utilization of a described UE, lower than predetermined threshold value, is defined as the 2nd UE by a described UE.
Second aspect, the embodiment of the present invention provides a kind of dispatch of down going sharing channel in high speed device, comprising:
The first processing unit, is used to respectively preassignment downlink resources of a plurality of UE, according to get each described in the data volume of downlink data of a UE and described preallocated downlink resource generate the level of resources utilization for a UE described in each;
The first scheduling unit, is connected with described the first processing unit, and the level of resources utilization of a UE is dispatched described a plurality of UE described in each generation according to described the first processing unit.
In the possible implementation of the first, described preallocated downlink resource comprises channel code and power;
Described the first processing unit is specifically for generating the described level of resources utilization according to the data volume of the preallocated described channel code of a UE and/or described power and described data to be sent described in each.
The possible implementation of the first in conjunction with second aspect or second aspect, in the possible implementation of the second, described the first scheduling unit is specifically for dispatching described a plurality of UE from high to low according to the level of resources utilization of a UE described in each.
The possible implementation of the first in conjunction with second aspect or second aspect, in the third possible implementation, described the first scheduling unit, specifically for obtaining the actual schedule speed of a UE described in each, is dispatched described a plurality of UE according to the level of resources utilization of a UE described in each and actual schedule speed.
In conjunction with the third possible implementation of second aspect, in the 4th kind of possible implementation, described the first scheduling unit comprises:
The first priority subelement, generates the priority of a UE described in each for applying following formula:
Figure BDA00001941259800041
wherein, P is priority, and E is the level of resources utilization, and r is actual schedule speed;
The first scheduling sublayer unit, is connected with described the first priority subelement, for according to described the first priority subelement, generate each described in the priority of a UE described a plurality of UE are dispatched.
The possible implementation of the first in conjunction with second aspect or second aspect, in the 5th kind of possible implementation, described the first scheduling unit, specifically for obtaining momentary rate and the actual schedule speed of a UE described in each, is dispatched described a plurality of UE according to the level of resources utilization of a UE described in each, momentary rate and actual schedule speed.
In conjunction with the 5th kind of possible implementation of second aspect, in the 6th kind of possible implementation, described the first scheduling unit comprises:
The second priority subelement, generates the priority of a UE described in each for applying following formula:
Figure BDA00001941259800042
wherein, P is priority, and R is momentary rate, and E is the level of resources utilization, and r is actual schedule speed, λ 1be the first weight, λ 2it is the second weight;
The second scheduling sublayer unit, is connected with described the second priority subelement, for according to described the second priority subelement, generate each described in the priority of a UE described a plurality of UE are dispatched.
In conjunction with second aspect or the implementation of the first of second aspect, in the 7th kind of possible implementation, described device also comprises:
Determining unit, for determining a described a plurality of UE according to the bit rate information that guarantees of a plurality of UE that get, is defined as the 2nd UE by remaining UE;
The second processing unit, remaining downlink resource after described a plurality of UE being dispatched for basis, for a plurality of described the 2nd UE preassignment downlink resources, according to get each described in the data volume of downlink data of the 2nd UE and described preallocated downlink resource generate the level of resources utilization for the 2nd UE described in each;
The second scheduling unit, is connected with described the second processing unit, for according to described the second processing unit, generate each described in the level of resources utilization of the 2nd UE described a plurality of the 2nd UE are dispatched.
The 7th kind of possible implementation in conjunction with second aspect, in the 8th kind of possible implementation, described device also comprises: adjustment unit, is connected with described determining unit, if be used for the level of resources utilization of a described UE lower than predetermined threshold value, a described UE be defined as to the 2nd UE.
As shown from the above technical solution, dispatch of down going sharing channel in high speed method and device thereof that the embodiment of the present invention provides, dispatch of down going sharing channel in high speed device is a plurality of UE preassignment downlink resources, according to the data volume of the downlink data of each UE getting and preallocated downlink resource, be that each UE generates the level of resources utilization, according to the level of resources utilization of each UE, a plurality of UE dispatched.It is to dispatch according to the data volume of the downlink data of a UE and preallocated downlink resource that a plurality of UE are dispatched, be to dispatch according to the level of resources utilization of a UE, therefore can be so that wireless link can send more valid data, effectively improve the actual throughput rates of system and the utilance of resource, and reduced wasting of downlink resource.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the dispatch of down going sharing channel in high speed method of one embodiment of the invention;
Fig. 2 is the schematic flow sheet of the dispatch of down going sharing channel in high speed method of another embodiment of the present invention;
Fig. 3 is the schematic diagram of the dispatch of down going sharing channel in high speed device of one embodiment of the invention;
Fig. 4 is the schematic diagram of the dispatch of down going sharing channel in high speed device of another embodiment of the present invention;
Fig. 5 is the schematic diagram of the dispatch of down going sharing channel in high speed device of yet another embodiment of the invention;
Fig. 6 is the schematic diagram of the dispatch of down going sharing channel in high speed device of further embodiment of this invention;
Fig. 7 is the also schematic diagram of the dispatch of down going sharing channel in high speed device of an embodiment of the present invention.
Embodiment
The embodiment of the present invention is not considered the impact that type of service is brought in carrying out scheduling downlink resource, by the priority of default different service types in the scheduling of downlink resource, can simplify the factor of impact scheduling, and not affect the strategy to scheduling downlink resource algorithm.
Fig. 1 is the schematic flow sheet of the dispatch of down going sharing channel in high speed method of one embodiment of the invention.As shown in Figure 1, when the dispatch of down going sharing channel in high speed method that the embodiment of the present invention provides specifically can be applied in communication system that transfer of data is carried out by high speed descending sharing channel and a plurality of UE in base station, scheduling process to a plurality of UE, this communication system is specifically as follows code division multiple access (Code Division Multiple Access, be called for short CDMA), TD SDMA (Time Division-Synchronous Code Division Multiple Access, be called for short TD-SCDMA), Long Term Evolution (Long Term Evolution, be called for short LTE), code division multiple access (Code Division Multiple Access, be called for short CDMA) or WLAN (Wireless Local Area Networks, be called for short WLAN) etc.The dispatch of down going sharing channel in high speed method that the present embodiment provides specifically can be carried out by dispatch of down going sharing channel in high speed device, this dispatch of down going sharing channel in high speed device can be integrated in base station, and this dispatch of down going sharing channel in high speed device can adopt the mode of software and/or hardware to realize.Take communication system below as WCDMA is example, and the dispatch of down going sharing channel in high speed method that the present embodiment is provided is described in detail.
The dispatch of down going sharing channel in high speed method that the present embodiment provides specifically comprises the steps:
Step 11, be respectively preassignment downlink resources of a plurality of UE, according to get each described in the data volume of downlink data of a UE and described preallocated downlink resource generate the level of resources utilization for a UE described in each;
Step 12, according to the level of resources utilization of a UE described in each, described a plurality of UE are dispatched.
Particularly, a UE is the UE that treats base station scheduling, when base station receives the downlink data of a plurality of UE, can carry out buffer memory to the downlink data of each UE.The plurality of UE can be the first UE.Also can be for determine a UE from the plurality of UE by presetting method.The quantity of the one UE is specially a plurality of, and when a plurality of UE share high speed descending sharing channel, dispatch a plurality of UE base station, thinks a UE allocation of downlink resource of scheduling.
For each UE, the preallocated downlink resource of the one UE is specifically as follows, if a UE first while being scheduled, the situation of the downlink resource distributing for a UE, the assigning process of downlink resource specifically can adopt default resource allocation policy or resource allocation algorithm to realize.After dispatch of down going sharing channel in high speed device is a UE preassignment downlink resource, base station does not utilize this preallocated downlink resource and a UE to carry out transfer of data.Dispatch of down going sharing channel in high speed device generates the level of resources utilization according to the data volume of the downlink data corresponding to a UE and the preallocated downlink resource of a UE.The data volume of the downlink data of the one UE is specially the actual data volume that can send to the data of a UE in base station.
Dispatch of down going sharing channel in high speed device generates after the level of resources utilization for each UE, according to the level of resources utilization of each UE, a plurality of UE to be scheduled is dispatched, and the implementation of this scheduling process specifically can have multiple.In one implementation, can first to the highest UE of the level of resources utilization, dispatch, for a UE allocation of downlink resource base station, by this downlink resource and a UE, carry out data interaction simultaneously.After the highest UE of the level of resources utilization has been dispatched, if downlink resource also has residue, then a UE who is second to the level of resources utilization dispatches, by that analogy, until all downlink resources distribute or all UE have dispatched.
In another kind of implementation, also can by preset rules, to a UE, dispatch according to this level of resources utilization, after first UE has dispatched, if downlink resource also has residue, again second UE dispatched, by that analogy, until all downlink resources distribute or all UE have dispatched.
The dispatch of down going sharing channel in high speed method that the embodiment of the present invention provides, dispatch of down going sharing channel in high speed device is a plurality of UE preassignment downlink resources, according to the data volume of the downlink data of each UE getting and preallocated downlink resource, be that each UE generates the level of resources utilization, according to the level of resources utilization of each UE, a plurality of UE dispatched.It is to dispatch according to the data volume of the downlink data of a UE and preallocated downlink resource that a plurality of UE are dispatched, be to dispatch according to the level of resources utilization of a UE, therefore can be so that wireless link can send more valid data, effectively improve the actual throughput rates of system and the utilance of resource, and reduced wasting of downlink resource.
In the present embodiment, described preallocated downlink resource specifically can comprise channel code and power;
Correspondingly, in step 11, described basis get each described in the data volume of downlink data of a UE and described preallocated downlink resource for a UE described in each generates the level of resources utilization, specifically can comprise:
According to the data volume of the preallocated described channel code of a UE and/or described power and described downlink data described in each, generate the described level of resources utilization.
Suppose that a plurality of UE all can first be scheduled, base station can obtain the parameter information of each UE, this parameter information specifically can comprise: CQI (Chartered Quality Institute, be called for short CQI) and corresponding to the data volume (Data) of the downlink data of a UE etc.Wherein, the data volume of the downlink data of a UE (Data) can obtain in the buffer memory of base station.The one UE can feed back to base station by CQI by a channel, and this CQI is in order to indicating channel quality.According to the CQI of each UE, by default resource allocation policy or algorithm, be each UE preassignment downlink resource.According to the CQI of each UE, by default resource allocation policy or algorithm calculates each preallocated channel code of a UE (CodeNumber) and/or power (Power).According to the data volume (Data) of each preallocated channel code of a UE (CodeNumber) and/or power (Power) and data to be sent, generate level of resources utilization E again.
Particularly, can generate this level of resources utilization E by following formula:
E=Data/CodeNumber；
E=Data/Power；
E=Data/(Power*CodeNumber)；
For example, have a n UE, n is positive integer i=1,2,3 ... n:
Data is i the UE data volume that base station can the actual downlink data sending in this scheduling;
Power is that first i UE of hypothesis can be dispatched, and, in this scheduling, can distribute to the power of an i UE;
CodeNumber supposes that first an i UE can be dispatched, during this is dispatched, and i the number of channelization codes that a UE need to consume.
The embodiment of the present invention can be according to the level of resources utilization E of any one or its each UE of combination producing in above-mentioned formula.The compound mode of above-mentioned formula can be by suing for peace and obtain after each formula external reservoir is with weight coefficient, and wherein, weight coefficient can obtain according to the assessment result to channel system.
In the present embodiment, step 12, describedly dispatches described a plurality of UE according to the level of resources utilization of a UE described in each, can specifically comprise:
According to the level of resources utilization of a UE described in each, from high to low described a plurality of UE are dispatched.
That is to say, the higher UE of level of resources utilization E in a plurality of UE, the possibility of first being dispatched is also higher.
The present embodiment is according to the level of resources utilization of each UE, a plurality of UE to be dispatched, wherein the utilization ratio of the downlink resource of each UE is according to the actual transmission in base station, to cover data volume and the CQI generation of UE data, wherein CQI is in order to indicating channel quality, therefore in the present embodiment is dispatched a plurality of UE, in the approaching situation of the channel quality of a plurality of first users, the first user that priority scheduling resource is more sufficient, make unlimited link can send more valid data, reduced the ratio of unlimited link bearer VB vacancy bit, effectively raise the actual throughput rates of system and the utilance of resource, and reduced wasting of downlink resource.
In the present embodiment, step 12, describedly dispatches described a plurality of UE according to the level of resources utilization of a UE described in each, specifically can comprise:
Obtain the actual schedule speed of a UE described in each, according to the level of resources utilization of a UE described in each and actual schedule speed, described a plurality of UE are dispatched.
The actual schedule speed of the one UE is that a UE is buffered in the data volume that needs downlink data in base station and the ratio of channel width.
In the present embodiment, describedly according to the level of resources utilization of a UE described in each and actual schedule speed, described a plurality of UE are dispatched, specifically can comprise:
Step 121, the following formula of application generate the priority of a UE described in each:
Figure BDA00001941259800091
wherein, P is priority, and E is the level of resources utilization, and r is actual schedule speed;
Step 122, according to the priority of a UE described in each, described a plurality of UE are dispatched.
According to the level of resources utilization E of each UE and actual schedule speed r, generate the priority P of a plurality of UE.
Suppose that a UE has n, wherein n is positive integer, i=1,2 ..., n, can calculate according to above-mentioned formula the priority P of an i UE i:
?
Figure BDA00001941259800101
wherein, E i(t) be in t scheduling constantly, the level of resources utilization of an i UE; r i(t) be in t scheduling constantly, i the actual scheduling rates obtaining of a UE.
Dispatch of down going sharing channel in high speed device according to each UE priority P, sort in a certain order, preferably can according to a UE order from high to low of priority P sort.First the most much higher UE of dispatching priority P is a UE allocation of downlink resource simultaneously, and dispatch of down going sharing channel in high speed device carries out data interaction by this downlink resource and a UE.After the highest UE of scheduling priority P has been dispatched, if downlink resource also has residue, then dispatch dispatching the UE that priority P is second, by that analogy, until all downlink resources distribute or all UE have dispatched.
Therefore, the present embodiment is compared according to the level of resources utilization of each UE and base station actual transmission the one UE speed the UE priority obtaining a plurality of UE is dispatched.Thereby considered fully the level of resources utilization of each UE and the speed that base station sends a UE, further improved the level of resources utilization and system throughput degree rate, and reduced the wasting of resources.
In the present embodiment, step 12, describedly dispatches described a plurality of UE according to the level of resources utilization of a UE described in each, specifically can comprise:
Obtain momentary rate and the actual schedule speed of a UE described in each, according to the level of resources utilization of a UE described in each, momentary rate and actual schedule speed, described a plurality of UE are dispatched.
Particularly, the momentary rate of the one UE is specifically in order to indicate base station to send the momentary rate of a UE, the momentary rate of each UE can be searched acquisition by the corresponding relation in tables of data according to the CQI of each UE, and the momentary rate R of each UE is the theoretical value that base station sends the momentary rate of a UE.
The present embodiment, in step 12, describedly dispatches described a plurality of UE according to the level of resources utilization of a UE described in each, momentary rate and actual schedule speed, specifically can comprise:
Step 123, the following formula of application generate the priority P of a UE described in each:
? P = λ 1 R + λ 2 E r ;
Wherein, P is priority, and R is momentary rate, and E is the level of resources utilization, and r is actual schedule speed, " be the first weight, λ 2it is the second weight;
Step 124, according to the priority of a UE described in each, described a plurality of UE are dispatched.
In step 123, the level of resources utilization E of each UE is identical with the level of resources utilization that above-described embodiment generates a UE, does not repeat them here.
Suppose that a UE has n, wherein n is positive integer, i=1,2 ..., n, can calculate according to above-mentioned formula the dispatching priority P of each UE i:
? P i = λ 1 R i ( t ) + λ 2 E i ( t ) r i ( t ) ;
R i(t) be in t scheduling constantly, under the channel circumstance of an i residing position of UE, the momentary rate of base station scheduling the one UE;
E i(t) be in t scheduling constantly, according to the channel circumstance of an i residing position of UE and the level of resources utilization that needs the actual data volume sending to obtain;
R i(t) be i the actual scheduling rates obtaining of a UE; λ 1be the first weight, λ 2being the second weight, is according to obtaining in the channel circumstance simulation result of an i residing position of UE.
Step 124 implementation procedure specifically can, with reference to the associated description of step 122, not repeat them here.
The present embodiment is dispatched a plurality of UE according to the momentary rate of the level of resources utilization of each UE, a UE and actual schedule speed, that is to say, the present embodiment is dispatched a plurality of UE according to certain weights correction, can improve the accuracy of each UE scheduling, thereby the utilization ratio and the system throughput degree rate that have further improved downlink resource have reduced the wasting of resources simultaneously.
Fig. 2 is the dispatch of down going sharing channel in high speed method flow diagram of another embodiment of the present invention.As shown in Figure 2, in the present embodiment, in step 11, described is before a plurality of UE preassignment downlink resources, can also comprise:
The bit rate information that guarantees of a plurality of UE that step 10, basis get is determined a described a plurality of UE, and remaining UE is defined as to the 2nd UE;
Correspondingly, in step 12, described according to the level of resources utilization of a UE described in each, described a plurality of UE are dispatched after, can also comprise:
Step 13, basis are dispatched rear remaining downlink resource to described a plurality of UE, for a plurality of described the 2nd UE preassignment downlink resources, according to get each described in the data volume of downlink data of the 2nd UE and described preallocated downlink resource generate the level of resources utilization for the 2nd UE described in each; According to the level of resources utilization of the 2nd UE described in each, described a plurality of the 2nd UE are dispatched.
Particularly, in actual application, conventionally need to guarantee the service rate of a part of UE.Dispatch of down going sharing channel in high speed device can obtain assurance bit rate (Guaranteed Bit Rate, the GBR) information of UE, according to this GBR information, UE is carried out to the assessment of user class.For example, the UE that is VIP by GBR information is defined as a UE, i.e. GBRUE, and remaining UE is the 2nd UE, i.e. non-GBRUE.First a UE is dispatched, after a UE has been dispatched, if also have remaining downlink resource, then the 2nd UE is dispatched, to guarantee the service rate of a UE.
It should be noted that those skilled in the art can also distribute UE according to other parameters of practical business demand, are not limited with the present embodiment.
The mode that described a plurality of UE are dispatched specifically can be with reference to the scheduling mode to a plurality of UE of above-described embodiment, while having remaining downlink resource after a plurality of UE dispatch, be a plurality of the 2nd UE preassignment downlink resources again, and dispatch, to the scheduling mode of the 2nd UE, specifically can adopt the mode identical with dispatching a UE, for example can to the 2nd UE, dispatch according to the level of resources utilization of the 2nd UE, also can to the 2nd UE, dispatch according to the level of resources utilization of the 2nd UE and actual schedule speed, can also be according to the level of resources utilization of the 2nd UE, actual schedule speed and momentary rate are dispatched the 2nd UE, can also adopt other dispatching method to realize, with the present embodiment, be not limited.After first the 2nd UE has dispatched, if also have remaining downlink resource, then second the 2nd UE dispatched, until all down channel resources are assigned or the 2nd UE has dispatched, in this explanation no longer one by one.
The present embodiment is on the basis of above-described embodiment, before dispatch of down going sharing channel in high speed device is a plurality of UE preassignment downlink resources, according to the assurance bit rate information of a plurality of UE that acquire, a plurality of UE are carried out to user class assessment, be about to UE and be divided into GBRUE and non-GBRUE, therefore in the situation that guaranteeing GBRUE schedule speed, according to the level of resources utilization of the level of resources utilization of a UE and the 2nd UE, utilization ratio and the system throughput degree rate that can improve downlink resource, reduced the wasting of resources.
The present embodiment, in step 11, described basis get each described in the data volume of downlink data of a UE and described preallocated downlink resource for after described in each, a UE generates the level of resources utilization, step 12, described according to the level of resources utilization of a UE described in each, described a plurality of UE are dispatched before, described method can also comprise:
If the level of resources utilization of the described UE of step 101, lower than predetermined threshold value, is defined as the 2nd UE by a described UE within a dispatching cycle.
The present embodiment is on the basis of above-described embodiment, has increased according to the level of resources utilization of a UE the one UE is assessed again.Particularly, after each UE generates the level of resources utilization, can to a UE, assess according to the level of resources utilization of a UE, in actual application, within a dispatching cycle, can be using a time period as a dispatching cycle, when the level of resources utilization of certain UE is during lower than predetermined threshold value,, using a UE as the 2nd UE, by GBR UE, be downgraded to non-GBR UE.This demotion processes specifically can be only effective within this dispatching cycle.In next dispatching cycle, no matter reduced to the level of resources utilization of non-GBR UE in a upper dispatching cycle, be greater than, equal or be less than this predetermined threshold value, all as GBR UE, be scheduled.
The present embodiment is on the basis of above-described embodiment, according to the level of resources utilization of GBR UE, GBRUE is assessed again, by increasing, whether the level of resources utilization of GBR the one UE is assessed again lower than predetermined threshold value, in epicycle scheduling, GBR lower than predetermined threshold value the one UE is dispatched together with non-GBR the 2nd UE, the level of resources utilization and system throughput degree rate have been improved, reduced the wasting of resources, and then when having guaranteed that GBR the one UE is preferentially scheduled, reduced the effective consumption of GBR user to downlink resource, make the scheduling that all UE are comparatively fair.
Fig. 3 is the schematic diagram of the dispatch of down going sharing channel in high speed device of one embodiment of the invention.As shown in Figure 3, the dispatch of down going sharing channel in high speed device that the present embodiment provides specifically can be realized each step of the dispatch of down going sharing channel in high speed method that any embodiment of the present invention provides, does not repeat them here.This dispatch of down going sharing channel in high speed device can be arranged in base station.
The dispatch of down going sharing channel in high speed device that the present embodiment provides specifically comprises: the first processing unit 710 and the first scheduling unit 720.
The first processing unit 710, be used to a plurality of UE preassignment downlink resource respectively, particularly, can be each UE generation level of resources utilization E according to the data volume data of the downlink data of each UE getting from the buffer memory of base station and preallocated downlink resource;
The first scheduling unit 720 is connected with the first processing unit 710, for a plurality of UE being dispatched according to the level of resources utilization E of each UE of the first processing unit generation.
The dispatch of down going sharing channel in high speed device that the present embodiment provides, by the first processing unit, according to the data volume of the downlink data of each UE getting and preallocated downlink resource, it is each UE generation level of resources utilization, the first scheduling unit is determined the priority of a plurality of UE according to the level of resources utilization of each UE, finally a plurality of UE are dispatched.The technical scheme of the embodiment of the present invention makes to have considered the channel quality of a UE and the data volume that current actual needs sends in dispatch of down going sharing channel in high speed device, when dispatching by the level of resources utilization, in the approaching situation of the channel quality of a plurality of first users, the first user that priority scheduling resource is more sufficient, make unlimited link can send more valid data, reduced the ratio of unlimited link bearer VB vacancy bit, effectively raise the actual throughput rates of system, improved the utilance of resource simultaneously, and reduced the energy and waste.
Preallocated downlink resource in above-described embodiment can comprise channel code (CodeNumber) and power (Power), particularly, the first processing unit 701 can be for generating level of resources utilization E according to the data volume (data) of each preallocated channel code of a UE (CodeNumber) and/or described power (Power) and data to be sent.
Optionally, first scheduling unit 720 of the present embodiment specifically can be for dispatching a plurality of UE according to order from high to low according to the level of resources utilization E of each UE.
The present embodiment is according to the level of resources utilization of each UE, a plurality of UE to be dispatched, wherein the utilization ratio of the downlink resource of each UE is according to the actual transmission in base station, to cover data volume and the CQI generation of UE data, wherein CQI is in order to indicating channel quality, therefore in the present embodiment is dispatched a plurality of UE, in the approaching situation of the channel quality of a plurality of first users, the first user that priority scheduling resource is more sufficient, make unlimited link can send more valid data, reduced the ratio of unlimited link bearer VB vacancy bit, effectively raise the actual throughput rates of system and the utilance of resource, and reduced wasting of downlink resource.
Fig. 4 is the schematic diagram of the dispatch of down going sharing channel in high speed device of another embodiment of the present invention.As shown in Figure 4, the first scheduling unit 720 is connected with the first processing unit 710, the first scheduling unit 720 can be for obtaining the actual schedule speed r of a UE described in each, and according to the level of resources utilization E of each UE and actual schedule speed r, a plurality of UE are dispatched.
On the basis of above-described embodiment, the first scheduling unit 720 can comprise the first priority subelement 721 and the first scheduling sublayer unit 722:
The first priority subelement 721, generates the priority of a UE described in each for applying following formula:
wherein, P is priority, and E is the level of resources utilization, and r is actual schedule speed;
The first scheduling sublayer unit 722, is connected with described the first priority subelement 721, for according to described the first priority subelement 721, generate each described in the priority of a UE described a plurality of UE are dispatched.
Therefore, the first priority subelement of the present embodiment generates the priority of each UE, is according to the level of resources utilization of each UE and base station actual transmission the one UE speed, to compare the UE priority obtaining a plurality of UE are dispatched.Thereby considered fully the level of resources utilization of each UE and the speed that base station sends a UE, further improved the level of resources utilization and system throughput degree rate, and reduced the wasting of resources.
Fig. 5 is the schematic diagram of the dispatch of down going sharing channel in high speed device of yet another embodiment of the invention.As shown in Figure 5, the first scheduling unit 720 is connected with the first processing unit 710, the first scheduling unit 720 can be for obtaining momentary rate R and the actual schedule speed r of each UE, and according to level of resources utilization E, the momentary rate R of each UE and actual schedule speed r, a plurality of UE are dispatched.
On the basis of above-described embodiment, the first scheduling unit 720 can comprise the second priority subelement 723 and the second scheduling sublayer unit 724.
The second priority subelement 723, generates the priority of a UE described in each for applying following formula:
?
Figure BDA00001941259800151
wherein, P is priority, and R is momentary rate, and E is the level of resources utilization, and r is actual schedule speed, λ 1be the first weight, λ 2it is the second weight.
The second scheduling sublayer unit 724 can be connected with the second priority subelement 723, for a plurality of UE being dispatched according to the priority of each UE of described the second priority subelement 723 generations.
The second priority subelement of the present embodiment can generate the priority of each UE, specifically according to the momentary rate of the level of resources utilization of each UE, a UE and actual schedule speed, generate the priority of a plurality of UE, that is to say, the present embodiment is dispatched a plurality of UE according to the priority of each UE of certain weights correction, thereby can improve the accuracy of each UE scheduling, and then further improved utilization ratio and the system throughput degree rate of downlink resource, reduced the wasting of resources simultaneously
Fig. 6 is the schematic diagram of the dispatch of down going sharing channel in high speed device of further embodiment of this invention.As shown in Figure 6, dispatch of down going sharing channel in high speed device also wraps to draw together determining unit 730, the second processing unit 740 and the second scheduling unit 750.
Determining unit 730 can be for determining that according to the bit rate information that guarantees of a plurality of UE that get the plurality of UE is GBR the one UE, is defined as non-GBR the 2nd UE by remaining UE;
The second processing unit 740, remaining downlink resource after a plurality of GBR the one UE being dispatched for basis, for a plurality of non-GBR the 2nd UE preassignment downlink resources, according to the data volume (data) of the downlink data of each non-GBR the 2nd UE getting and preallocated downlink resource, be each non-GBR the 2nd UE generation level of resources utilization E;
The second scheduling unit 750 is connected with the second processing unit 740, can be for a plurality of non-GBR the 2nd UE being dispatched according to the level of resources utilization E of each non-GBR the 2nd UE of the second processing unit 740 generations.
The present embodiment carries out user class assessment by 730 couples of a plurality of UE of determining unit, be about to UE and be divided into GBRUE and non-GBRUE, therefore in the situation that guaranteeing GBRUE schedule speed, according to the level of resources utilization of the level of resources utilization of a UE and the 2nd UE, utilization ratio and the system throughput degree rate that can improve downlink resource, reduced the wasting of resources.
Fig. 7 is the also schematic diagram of the dispatch of down going sharing channel in high speed device of an embodiment of the present invention.As shown in Figure 7, on the basis of above-described embodiment, can also comprise adjustment unit 760, adjustment unit 760 is connected with determining unit 730, in the level of resources utilization of a UE during lower than predetermined threshold value, within a dispatching cycle, can be using the UE lower than predetermined threshold value as the 2nd UE.
The present embodiment is on the basis of above-described embodiment, whether the level of resources utilization by 760 couples of UE of adjustment unit is assessed again lower than predetermined threshold value, in epicycle scheduling, a UE lower than predetermined threshold value is dispatched together with the 2nd UE, improve the level of resources utilization and system throughput degree rate, reduced the wasting of resources, and then when having guaranteed that a UE is preferentially scheduled, reduce the effective consumption of a UE to downlink resource, made the scheduling that all UE are comparatively fair.
It should be noted that, the embodiment of the present invention be take communication system and is described as WCDMA as example, the dispatch of down going sharing channel in high speed method that those skilled in the art also can provide the embodiment of the present invention and application of installation, to the dispatch of down going sharing channel in high speed process of other communication system, are not limited with the present embodiment.This communication system can be for example TD SDMA (Time Division-Synchronous Code Division Multiple Access, TD-SCDMA), Long Term Evolution (Long Term Evolution, LTE), code division multiple access (Code Division Multiple Access, CDMA) or WLAN (Wireless Local Area Networks, WLAN).Particularly, when communication system is CDMA, the computational methods of the level of resources utilization are similar in the time of can being WCDMA with communication system, when communication system is TD-CDMA, when computational resource utilization ratio, it is also conceivable that the distribution of scheduling time, LTE when communication system is time division duplex, when computational resource utilization ratio, can consider the distribution of scheduling time, as the communication system LTE that is Frequency Division Duplexing (FDD), when computational resource utilization ratio, can consider carrier number, when communication system is WLAN, when computational resource utilization ratio, it is also conceivable that carrier number.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can complete by the relevant hardware of program command.Aforesaid program can be stored in a computer read/write memory medium.This program, when carrying out, is carried out the step that comprises above-mentioned each embodiment of the method; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
Finally it should be noted that: each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit above; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.

Claims (18)

1. a dispatch of down going sharing channel in high speed method, is characterized in that, comprising:
For a plurality of first user equipment UE preassignment downlink resources respectively, according to get each described in the data volume of downlink data of a UE and described preallocated downlink resource generate the level of resources utilization for a UE described in each;
According to the level of resources utilization of a UE described in each, described a plurality of UE are dispatched.
2. dispatch of down going sharing channel in high speed method according to claim 1, is characterized in that: described preallocated downlink resource comprises channel code and power;
Described basis get each described in the data volume of downlink data of a UE and described preallocated downlink resource for a UE described in each generates the level of resources utilization, comprising:
According to the data volume of the preallocated described channel code of a UE and/or described power and described data to be sent described in each, generate the described level of resources utilization.
3. dispatch of down going sharing channel in high speed method according to claim 1 and 2, is characterized in that, describedly according to the level of resources utilization of a UE described in each, described a plurality of UE is dispatched, and comprising:
According to the level of resources utilization of a UE described in each, from high to low described a plurality of UE are dispatched.
4. dispatch of down going sharing channel in high speed method according to claim 1 and 2, is characterized in that, describedly according to the level of resources utilization of a UE described in each, described a plurality of UE is dispatched, and comprising:
Obtain the actual schedule speed of a UE described in each, according to the level of resources utilization of a UE described in each and actual schedule speed, described a plurality of UE are dispatched.
5. dispatch of down going sharing channel in high speed method according to claim 4, is characterized in that, describedly according to the level of resources utilization of a UE described in each and actual schedule speed, described a plurality of UE is dispatched, and comprising:
Apply the priority that following formula generates a UE described in each:
wherein, P is priority, and E is the level of resources utilization, and r is actual schedule speed;
According to the priority of a UE described in each, described a plurality of UE are dispatched.
6. dispatch of down going sharing channel in high speed method according to claim 1 and 2, is characterized in that, describedly according to the level of resources utilization of a UE described in each, described a plurality of UE is dispatched, and comprising:
Obtain momentary rate and the actual schedule speed of a UE described in each, according to the level of resources utilization of a UE described in each, momentary rate and actual schedule speed, described a plurality of UE are dispatched.
7. dispatch of down going sharing channel in high speed method according to claim 6, is characterized in that, describedly according to the level of resources utilization of a UE described in each, momentary rate and actual schedule speed, described a plurality of UE is dispatched, and comprising:
Apply the priority that following formula generates a UE described in each:
Figure FDA00001941259700021
wherein, P is priority, and R is momentary rate, and E is the level of resources utilization, and r is actual schedule speed, λ 1be the first weight, λ 2it is the second weight;
According to the priority of a UE described in each, described a plurality of UE are dispatched.
8. dispatch of down going sharing channel in high speed method according to claim 1 and 2, is characterized in that, described is before a plurality of UE preassignment downlink resources, and described method also comprises:
According to the bit rate information that guarantees of a plurality of UE that get, determine a described a plurality of UE, remaining UE is defined as to the 2nd UE;
Described according to the level of resources utilization of a UE described in each, described a plurality of UE are dispatched after, described method also comprises:
According to remaining downlink resource after described a plurality of UE are dispatched, for a plurality of described the 2nd UE preassignment downlink resources, according to get each described in the data volume of downlink data of the 2nd UE and described preallocated downlink resource generate the level of resources utilization for the 2nd UE described in each;
According to the level of resources utilization of the 2nd UE described in each, described a plurality of the 2nd UE are dispatched.
9. dispatch of down going sharing channel in high speed method according to claim 8, it is characterized in that, described basis get each described in the data volume of downlink data of a UE and described preallocated downlink resource for after described in each, a UE generates the level of resources utilization, described according to the level of resources utilization of a UE described in each, described a plurality of UE are dispatched before, described method also comprises:
If the level of resources utilization of a described UE is lower than predetermined threshold value, within a dispatching cycle using a described UE as the 2nd UE.
10. a dispatch of down going sharing channel in high speed device, is characterized in that, comprising:
The first processing unit, is used to respectively preassignment downlink resources of a plurality of UE, according to get each described in the data volume of downlink data of a UE and described preallocated downlink resource generate the level of resources utilization for a UE described in each;
The first scheduling unit, is connected with described the first processing unit, and the level of resources utilization of a UE is dispatched described a plurality of UE described in each generation according to described the first processing unit.
11. dispatch of down going sharing channel in high speed devices according to claim 10, is characterized in that: described preallocated downlink resource comprises channel code and power;
Described the first processing unit is specifically for generating the described level of resources utilization according to the data volume of the preallocated described channel code of a UE and/or described power and described data to be sent described in each.
12. according to the dispatch of down going sharing channel in high speed device described in claim 10 or 11, it is characterized in that: described the first scheduling unit is specifically for dispatching described a plurality of UE from high to low according to the level of resources utilization of a UE described in each.
13. according to the dispatch of down going sharing channel in high speed device described in claim 10 or 11, it is characterized in that: described the first scheduling unit, specifically for obtaining the actual schedule speed of a UE described in each, is dispatched described a plurality of UE according to the level of resources utilization of a UE described in each and actual schedule speed.
14. dispatch of down going sharing channel in high speed devices according to claim 13, is characterized in that, described the first scheduling unit comprises:
The first priority subelement, generates the priority of a UE described in each for applying following formula:
Figure FDA00001941259700031
wherein, P is priority, and E is the level of resources utilization, and r is actual schedule speed;
The first scheduling sublayer unit, is connected with described the first priority subelement, for according to described the first priority subelement, generate each described in the priority of a UE described a plurality of UE are dispatched.
15. according to the dispatch of down going sharing channel in high speed device described in claim 10 or 11, it is characterized in that: described the first scheduling unit, specifically for obtaining momentary rate and the actual schedule speed of a UE described in each, is dispatched described a plurality of UE according to the level of resources utilization of a UE described in each, momentary rate and actual schedule speed.
16. dispatch of down going sharing channel in high speed devices according to claim 15, is characterized in that, described the first scheduling unit comprises:
The second priority subelement, generates the priority of a UE described in each for applying following formula:
wherein, P is priority, and R is momentary rate, and E is the level of resources utilization, and r is actual schedule speed, λ 1be the first weight, λ 2it is the second weight;
The second scheduling sublayer unit, is connected with described the second priority subelement, for according to described the second priority subelement, generate each described in the priority of a UE described a plurality of UE are dispatched.
17. according to the dispatch of down going sharing channel in high speed device described in claim 10 or 11, it is characterized in that, described device also comprises:
Determining unit, for determining a described a plurality of UE according to the bit rate information that guarantees of a plurality of UE that get, is defined as the 2nd UE by remaining UE;
The second processing unit, remaining downlink resource after described a plurality of UE being dispatched for basis, for a plurality of described the 2nd UE preassignment downlink resources, according to get each described in the data volume of downlink data of the 2nd UE and described preallocated downlink resource generate the level of resources utilization for the 2nd UE described in each;
The second scheduling unit, is connected with described the second processing unit, for according to described the second processing unit, generate each described in the level of resources utilization of the 2nd UE described a plurality of the 2nd UE are dispatched.
18. dispatch of down going sharing channel in high speed devices according to claim 17, is characterized in that, described device also comprises:
Adjustment unit, is connected with described determining unit, if for the level of resources utilization of a described UE lower than predetermined threshold value, within a dispatching cycle using a described UE as the 2nd UE.
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