CN105554893B - Distribution method of time frequency resources and time-frequency resource allocating device for LTE system - Google Patents
Distribution method of time frequency resources and time-frequency resource allocating device for LTE system Download PDFInfo
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- CN105554893B CN105554893B CN201610053640.8A CN201610053640A CN105554893B CN 105554893 B CN105554893 B CN 105554893B CN 201610053640 A CN201610053640 A CN 201610053640A CN 105554893 B CN105554893 B CN 105554893B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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Abstract
The invention proposes a kind of distribution method of time frequency resources for LTE system and time-frequency resource allocating device, wherein, the distribution method of time frequency resources for LTE system includes: for first kind resource and Second Type resource allocation resource block, wherein, the Transmission Time Interval that the first kind resource and the Second Type resource are supported is different；The occupied resource block of the first kind resource and the occupied resource block of Second Type resource is controlled to be alternately distributed in the system bandwidth of the LTE system on frequency domain in pectination.According to the technical solution of the present invention, it is more reasonably first kind resource and Second Type resource allocation resource block, not only can preferably obtains frequency diversity gain, but also also avoid the interruption of low time delay business.
Description
Technical field
The present invention relates to fields of communication technology, in particular to a kind of distribution method of time frequency resources for LTE system
With a kind of time-frequency resource allocating device for LTE system.
Background technique
Currently, with the development of mobile internet, having emerged the applied business for largely meeting various specific functions.Wherein
It is many with business have strict requirements, such as game, booking etc. to data delay.This kind of business is usually required user
The time delay of data is short as far as possible.In LTE (Long Term Evolution, long term evolution) system, Transmission Time Interval is
Influence the important indicator of user data delay.The Transmission Time Interval that current LTE system uses is 1ms, that is, every 1ms is sent
Data, receiving end can demodulate the data of every 1ms.
In 3GPP RAN#69 plenary session in LTE system use shorter TTI (Transmission Time
Interval, Transmission Time Interval) project set up the project, research uses the feasibility of shorter TTI and possible beneficial
Effect.It is possible that 1ms TTI and shorter TTI (such as 0.5ms etc.) two kinds of transmissions are spaced in the LTE system of later release
The case where coexisting, that is, in the same cell, exist simultaneously the existing terminal that data transmit-receive is carried out using 1ms TTI, also having makes
The terminal of data transmit-receive is carried out with shorter TTI.In order to adapt to such case, need to close the running time-frequency resource of LTE system
The configuration of reason so that LTE system can support with 1ms TTI carry out data transmit-receive the case where and support with shorter TTI into
The case where row data transmit-receive.For example, by using the mode of time-division, as shown in Figure 1, abscissa t is time domain, ordinate f is frequency domain, often
One rectangular block is a resource block (Resource Block, RB), supports the running time-frequency resource that data transmit-receive is carried out with 1ms TTI
It (hereinafter referred to as first kind resource) and supports to be less than running time-frequency resource (hereinafter referred to as the second class that 1ms TTI carries out data transmit-receive
Type resource) it is alternately present in the time domain, wherein the occupied resource block of first kind resource is grey, Second Type resource institute
The resource block of occupancy is colourless；Or by the way of frequency division, as shown in Fig. 2, a part of RB is divided carrying first kind money
Source, remaining RB are divided carrying Second Type resource.
In above-mentioned time division way, the resource block as occupied by Second Type resource be in the time domain it is discontinuous, reflect
The business penetrated in Second Type resource is possible to will appear interruption, is unfavorable for reducing service delay；In above-mentioned frequency division manner
In, first kind resource and the occupied resource block of Second Type resource be it is centralized, be unfavorable for utilizing the excellent of frequency diversity
Gesture.
Therefore, how more reasonably to become at present urgently for first kind resource and Second Type resource allocation resource block
It solves the problems, such as.
Summary of the invention
The present invention is based on the above problems, proposes a kind of new technical solution, more reasonably provides for the first kind
Source and Second Type resource allocation resource block, not only can preferably obtain frequency diversity gain, but also also avoid low time delay
The interruption of business.
In view of this, the first aspect of the present invention proposes a kind of distribution method of time frequency resources for LTE system, packet
It includes: for first kind resource and Second Type resource allocation resource block, wherein the first kind resource and the Second Type
The Transmission Time Interval that resource is supported is different；Control the occupied resource block of the first kind resource and Second Type money
The occupied resource block in source is alternately distributed in the system bandwidth of the LTE system on frequency domain in pectination.
In the technical scheme, by occupied by the occupied resource block of control first kind resource and Second Type resource
Resource block be alternately distributed in the system bandwidth of LTE system on frequency domain in pectination so that in system bandwidth uniformly or
Approaches uniformity disposes the occupied resource block of first kind resource and the occupied resource block of Second Type resource, so as to compared with
Good acquisition frequency diversity gain.Support that running time-frequency resource of the Transmission Time Interval less than 1ms is to connect in the time domain moreover, ensure that
Continuous, it is interrupted so as to avoid low time delay business, and then ensure that the reliability of low time delay business.
Wherein, pectination is alternately distributed that is, setting the system bandwidth of LTE system as N number of RB, RB1~RBn1 is first (two)
Resource type, RBn1+1~RBn2 are second (one) resource type, and RBn2+1~RBn3 is first (two) resource type, RBn3+1
~RBn4 is second (one) resource type, and so on, first kind resource and Second Type resource are on the N number of RB of system bandwidth
Cross-distribution.
The Transmission Time Interval that first kind resource is supported is 1ms, and the Transmission Time Interval that Second Type resource is supported is
Less than 1ms.
In the above-mentioned technical solutions, it is preferable that be the first kind resource and the Second Type resource allocation resource
The step of block, specifically includes: calculating the portfolio of the portfolio of first kind business and Second Type business in the LTE system
Ratio；According to resource block total quantity in the value of the ratio and the system bandwidth, it is determined as the first kind resource point
The quantity of the quantity for the resource block matched and the resource block for the Second Type resource allocation.
In the technical scheme, in conjunction with the business of the portfolio of first kind business and Second Type business in LTE system
The ratio of amount is first kind resource and Second Type resource allocation resource block, so that the distribution of resource block block more adduction
Reason and optimization.
Wherein, Second Type business is low time delay business, and such as game, booking, first kind business is general service, such as clear
Look at webpage.
In any of the above-described technical solution, it is preferable that be the first kind resource and the Second Type resource allocation
The step of resource block, specifically includes: being second class for the resource block of first preset quantity of first kind resource allocation
The resource block of the second preset quantity of type resource allocation.
In the technical scheme, the quantity for the resource block of first kind resource and Second Type resource allocation can also be
Fixed.
In any of the above-described technical solution, it is preferable that same type of running time-frequency resource is occupied continuous more on frequency domain
A resource block constitutes resource block group；And the step for the first kind resource and the Second Type resource allocation resource block
Suddenly, further includes: distribute the money according to preset limit condition for the first kind resource and the Second Type Resource Design
The quantity for the resource block that source block group is included.
In the technical scheme, the money for including by first kind resource and Second Type Resource Design distribution resource block group
When the quantity of source block, it is contemplated that preset limit condition, so that for first kind resource and Second Type Resource Design point
More rationally and more optimize with resource block.
In any of the above-described technical solution, it is preferable that the preset limit condition include: be any in the LTE system
The ascending resource block of terminal distribution is continuous on frequency domain；Or the ascending resource block distributed for any terminal in the LTE system
It is divided into two clusters, the resource block in each cluster in described two clusters is continuous on frequency domain, between described two clusters on frequency domain
Discontinuously；After meeting conditions above, the quantity of continuous ascending resource block will also meet following formula on frequency domain:
N=2a×3b×5c；
Wherein, N indicates the quantity of the continuous ascending resource block, and a, b, c are the integer more than or equal to 0.
In the technical scheme, the money for including by first kind resource and Second Type Resource Design distribution resource block group
When the quantity of source block, it is contemplated that above-mentioned preset limit condition, so that being first kind resource and Second Type resource
Design distribution resource block more optimizes rationally and more, i.e., when the resource block in resource block group being given any terminal, Ke Yiman
The demand of sufficient any terminal multiple business.
In any of the above-described technical solution, it is preferable that according to the preset limit condition be the first kind resource and
The Second Type Resource Design distributes the step of quantity for the resource block that the resource block group is included, and specifically includes:
According to the sum of the resource block of the quantity of the resource block group of the first kind resource, first kind resource, determine
The quantity for the resource block that the resource block group of the first kind resource is included；
According to the sum of the resource block of the quantity of the resource block group of the Second Type resource, Second Type resource, determine
The quantity for the resource block that the resource block group of the Second Type resource is included.
For example, in LTE system, the resource block group number of first kind resource is 5 groups, the resource block of first kind resource it is total
Number is 25, then needs to guarantee that the sum of quantity of resource block is 25 in 5 groups of resource block groups.
The second aspect of the present invention proposes a kind of time-frequency resource allocating device for LTE system, comprising: distribution is single
Member, for being first kind resource and Second Type resource allocation resource block, wherein the first kind resource and described second
The Transmission Time Interval that resource type is supported is different；Control unit is connected to the allocation unit, for controlling the first kind
The occupied resource block of type resource and the occupied resource block of Second Type resource are alternately distributed on frequency domain in pectination
In the system bandwidth of the LTE system.
In the technical scheme, by occupied by the occupied resource block of control first kind resource and Second Type resource
Resource block be alternately distributed in the system bandwidth of LTE system on frequency domain in pectination so that in system bandwidth uniformly or
Approaches uniformity disposes the occupied resource block of first kind resource and the occupied resource block of Second Type resource, so as to compared with
Good acquisition frequency diversity gain.Support that running time-frequency resource of the Transmission Time Interval less than 1ms is to connect in the time domain moreover, ensure that
Continuous, it is interrupted so as to avoid low time delay business, and then ensure that the reliability of low time delay business.
Wherein, pectination is alternately distributed that is, setting the system bandwidth of LTE system as N number of RB, RB1~RBn1 is first (two)
Resource type, RBn1+1~RBn2 are second (one) resource type, and RBn2+1~RBn3 is first (two) resource type, RBn3+1
~RBn4 is second (one) resource type, and so on, first kind resource and Second Type resource are on the N number of RB of system bandwidth
Cross-distribution.
The Transmission Time Interval that first kind resource is supported is 1ms, and the Transmission Time Interval that Second Type resource is supported is
Less than 1ms.
In the above-mentioned technical solutions, it is preferable that the allocation unit includes: computing unit, for calculating the LTE system
The ratio of the portfolio of the portfolio and Second Type business of middle first kind business；Determination unit, for according to the ratio
Value and the system bandwidth in resource block total quantity, be determined as the quantity of the resource block of the first kind resource allocation and be
The quantity of the resource block of the Second Type resource allocation.
In the technical scheme, in conjunction with the business of the portfolio of first kind business and Second Type business in LTE system
The ratio of amount is first kind resource and Second Type resource allocation resource block, so that the distribution of resource block block more adduction
Reason and optimization.
Wherein, Second Type business is low time delay business, and such as game, booking, first kind business is general service, such as clear
Look at webpage.
In any of the above-described technical solution, it is preferable that the allocation unit is specifically used for, for the first kind resource point
Resource block with the first preset quantity is the resource block of second preset quantity of Second Type resource allocation.
In the technical scheme, the quantity for the resource block of first kind resource and Second Type resource allocation can also be
Fixed.
In any of the above-described technical solution, it is preferable that same type of running time-frequency resource is occupied continuous more on frequency domain
A resource block constitutes resource block group；And the allocation unit is also used to, and is first kind money according to preset limit condition
Source and the Second Type Resource Design distribute the quantity for the resource block that the resource block group is included.
In the technical scheme, the money for including by first kind resource and Second Type Resource Design distribution resource block group
When the quantity of source block, it is contemplated that preset limit condition, so that for first kind resource and Second Type Resource Design point
More rationally and more optimize with resource block.
In any of the above-described technical solution, it is preferable that the preset limit condition include: be any in the LTE system
The ascending resource block of terminal distribution is continuous on frequency domain；Or the ascending resource block distributed for any terminal in the LTE system
It is divided into two clusters, the resource block in each cluster in described two clusters is continuous on frequency domain, between described two clusters on frequency domain
Discontinuously；After meeting conditions above, the quantity of continuous ascending resource block will also meet following formula on frequency domain:
B=2a×3b×5c；
Wherein, N indicates the quantity of the continuous ascending resource block, and a, b, c are the integer more than or equal to 0.
In the technical scheme, the money for including by first kind resource and Second Type Resource Design distribution resource block group
When the quantity of source block, it is contemplated that above-mentioned preset limit condition, so that being first kind resource and Second Type resource
Design distribution resource block more optimizes rationally and more, i.e., when the resource block in resource block group being given any terminal, Ke Yiman
The demand of sufficient any terminal multiple business.
In any of the above-described technical solution, it is preferable that the allocation unit is specifically used for, according to the first kind resource
The quantity of resource block group, first kind resource resource block sum, determine the resource block group institute of the first kind resource
The quantity for the resource block for including；According to the resource block of the quantity of the resource block group of the Second Type resource, Second Type resource
Sum, determine the quantity for the resource block that the resource block group of the Second Type resource is included.
For example, in LTE system, the resource block group number of first kind resource is 5 groups, the resource block of first kind resource it is total
Number is 25, then needs to guarantee that the sum of quantity of resource block is 25 in 5 groups of resource block groups.
Another aspect of the present invention proposes a kind of base station, including being used for LTE described in any one of above-mentioned technical proposal
The time-frequency resource allocating device of system, therefore, the base station have and any one of above-mentioned technical proposal described in be used for LTE system
The identical technical effect of time-frequency resource allocating device, details are not described herein.
It according to the technical solution of the present invention, is more reasonably first kind resource and Second Type resource allocation resource
Block not only can preferably obtain frequency diversity gain, but also also avoid the interruption of low time delay business.
Detailed description of the invention
Fig. 1 shows the schematic diagram that resource block is distributed by the way of the time-division in the related technology；
Fig. 2 shows the schematic diagrames that resource block is distributed by the way of frequency division in the related technology；
Fig. 3 shows the process of the distribution method of time frequency resources according to an embodiment of the invention for LTE system
Schematic diagram；
Fig. 4 shows the structure of the time-frequency resource allocating device according to an embodiment of the invention for LTE system
Schematic diagram；
Fig. 5 shows the structural schematic diagram of base station according to an embodiment of the invention；
Fig. 6 shows the schematic diagram according to an embodiment of the invention that resource block is distributed by the way of frequency division；
Fig. 7 shows the schematic diagram that resource block is distributed by the way of frequency division according to another embodiment of the invention.
Specific embodiment
It is with reference to the accompanying drawing and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Fig. 3 shows the process of the distribution method of time frequency resources according to an embodiment of the invention for LTE system
Schematic diagram.
As shown in figure 3, the distribution method of time frequency resources according to an embodiment of the invention for LTE system, comprising:
It step 302, is first kind resource and Second Type resource allocation resource block, wherein the first kind resource
It is different with the Transmission Time Interval that the Second Type resource is supported；
Step 304, it controls the occupied resource block of the first kind resource and the Second Type resource is occupied
Resource block is alternately distributed in the system bandwidth of the LTE system on frequency domain in pectination.
In the technical scheme, by occupied by the occupied resource block of control first kind resource and Second Type resource
Resource block be alternately distributed in the system bandwidth of LTE system on frequency domain in pectination so that in system bandwidth uniformly or
Approaches uniformity disposes the occupied resource block of first kind resource and the occupied resource block of Second Type resource, so as to compared with
Good acquisition frequency diversity gain.Support that running time-frequency resource of the Transmission Time Interval less than 1ms is to connect in the time domain moreover, ensure that
Continuous, it is interrupted so as to avoid low time delay business, and then ensure that the reliability of low time delay business.
Wherein, pectination is alternately distributed that is, setting the system bandwidth of LTE system as N number of RB, RB1~RBn1 is first (two)
Resource type, RBn1+1~RBn2 are second (one) resource type, and RBn2+1~RBn3 is first (two) resource type, RBn3+1
~RBn4 is second (one) resource type, and so on, first kind resource and Second Type resource are on the N number of RB of system bandwidth
Cross-distribution.
The Transmission Time Interval that first kind resource is supported is 1ms, and the Transmission Time Interval that Second Type resource is supported is
Less than 1ms.
In the above-mentioned technical solutions, it is preferable that step 302 specifically includes: calculating first kind business in the LTE system
Portfolio and Second Type business portfolio ratio；It is total according to resource block in the value of the ratio and the system bandwidth
Quantity is determined as the quantity of the resource block of the first kind resource allocation and the resource block for the Second Type resource allocation
Quantity.
In the technical scheme, in conjunction with the business of the portfolio of first kind business and Second Type business in LTE system
The ratio of amount is first kind resource and Second Type resource allocation resource block, so that the distribution of resource block block more adduction
Reason and optimization.
Wherein, Second Type business is low time delay business, and such as game, booking, first kind business is general service, such as clear
Look at webpage.
In any of the above-described technical solution, it is preferable that step 302 specifically includes: for the first kind resource allocation
The resource block of one preset quantity is the resource block of second preset quantity of Second Type resource allocation.
In the technical scheme, the quantity for the resource block of first kind resource and Second Type resource allocation can also be
Fixed.
In any of the above-described technical solution, it is preferable that same type of running time-frequency resource is occupied continuous more on frequency domain
A resource block constitutes resource block group；And step 302 further include: according to preset limit condition be the first kind resource and institute
State the quantity that Second Type Resource Design distributes the resource block that the resource block group is included.
In the technical scheme, the money for including by first kind resource and Second Type Resource Design distribution resource block group
When the quantity of source block, it is contemplated that preset limit condition, so that for first kind resource and Second Type Resource Design point
More rationally and more optimize with resource block.
In any of the above-described technical solution, it is preferable that the preset limit condition include: be any in the LTE system
The ascending resource block of terminal distribution is continuous on frequency domain；Or the ascending resource block distributed for any terminal in the LTE system
It is divided into two clusters, the resource block in each cluster in described two clusters is continuous on frequency domain, between described two clusters on frequency domain
Discontinuously；After meeting conditions above, the quantity of continuous ascending resource block will also meet following formula on frequency domain:
N=2a×3b×5c；
Wherein, N indicates the quantity of the continuous ascending resource block, and a, b, c are the integer more than or equal to 0.
In the technical scheme, the money for including by first kind resource and Second Type Resource Design distribution resource block group
When the quantity of source block, it is contemplated that above-mentioned preset limit condition, so that being first kind resource and Second Type resource
Design distribution resource block more optimizes rationally and more, i.e., when the resource block in resource block group being given any terminal, Ke Yiman
The demand of sufficient any terminal multiple business.
For example, not considering preset limit condition among the above, each money after division when resource block group is divided
The quantity of the RB of source block group is 3, and under this method of salary distribution, the quantity maximum value of continuous RB is 3.
During communication, if there is a terminal burst to have a kind of uplink service of certain more (can in LTE system
To be first kind business or Second Type business), then preferably scheme should be the RB more to terminal distribution
(assuming that needing to distribute 10).But due to there was only 3 in the RB quantity of design resource block group in advance, then once transmitting
In, the RB that can give this terminal at most can only just have 6 (i.e. two clusters, 3 RB of each cluster), not be able to satisfy the need of terminal
It asks.
Therefore, when resource block group is divided, if preset limit condition among the above is considered, for first kind resource
It can satisfy various business demands with Second Type Resource Design distribution resource block.Preferably mode is resource block group
The quantity for the continuous resource block for including cannot all very littles, the quantity for the resource block that at least have some resource groups to include is larger,
It is just able to satisfy the demand of the biggish user of certain bursty traffics in this way.
In any of the above-described technical solution, it is preferable that according to the preset limit condition be the first kind resource and
The Second Type Resource Design distributes the step of quantity for the resource block that the resource block group is included, and specifically includes:
According to the sum of the resource block of the quantity of the resource block group of the first kind resource, first kind resource, determine
The quantity for the resource block that the resource block group of the first kind resource is included；According to the resource block group of the Second Type resource
Quantity, Second Type resource resource block sum, determine the resource that the resource block group of the Second Type resource is included
The quantity of block.
For example, in LTE system, the resource block group number of first kind resource is 5 groups, the resource block of first kind resource it is total
Number is 25, then needs to guarantee that the sum of quantity of resource block is 25 in 5 groups of resource block groups.
Fig. 4 shows the structure of the time-frequency resource allocating device according to an embodiment of the invention for LTE system
Schematic diagram.
As shown in figure 4, the time-frequency resource allocating device 400 according to an embodiment of the invention for LTE system, packet
Include: allocation unit 402 and control unit 404, allocation unit 402 are used to provide for first kind resource and Second Type resource allocation
Source block, wherein the Transmission Time Interval that the first kind resource and the Second Type resource are supported is different；Control unit
404, it is connected to the allocation unit 402, for controlling the occupied resource block of the first kind resource and second class
The occupied resource block of type resource is alternately distributed in the system bandwidth of the LTE system on frequency domain in pectination.
In the technical scheme, by occupied by the occupied resource block of control first kind resource and Second Type resource
Resource block be alternately distributed in the system bandwidth of LTE system on frequency domain in pectination so that in system bandwidth uniformly or
Approaches uniformity disposes the occupied resource block of first kind resource and the occupied resource block of Second Type resource, so as to compared with
Good acquisition frequency diversity gain.Support that running time-frequency resource of the Transmission Time Interval less than 1ms is to connect in the time domain moreover, ensure that
Continuous, it is interrupted so as to avoid low time delay business, and then ensure that the reliability of low time delay business.
Wherein, pectination is alternately distributed that is, setting the system bandwidth of LTE system as N number of RB, RB1~RBn1 is first (two)
Resource type, RBn1+1~RBn2 are second (one) resource type, and RBn2+1~RBn3 is first (two) resource type, RBn3+1
~RBn4 is second (one) resource type, and so on, first kind resource and Second Type resource are on the N number of RB of system bandwidth
Cross-distribution.
The Transmission Time Interval that first kind resource is supported is 1ms, and the Transmission Time Interval that Second Type resource is supported is
Less than 1ms.
In the above-mentioned technical solutions, it is preferable that the allocation unit 402 includes: computing unit 4022, described for calculating
The ratio of the portfolio of the portfolio of first kind business and Second Type business in LTE system；Determination unit 4024 is used for root
According to resource block total quantity in the value and the system bandwidth of the ratio, it is determined as the resource block of the first kind resource allocation
Quantity and the resource block for the Second Type resource allocation quantity.
In the technical scheme, in conjunction with the business of the portfolio of first kind business and Second Type business in LTE system
The ratio of amount is first kind resource and Second Type resource allocation resource block, so that the distribution of resource block block more adduction
Reason and optimization.
Wherein, Second Type business is low time delay business, and such as game, booking, first kind business is general service, such as clear
Look at webpage.
In any of the above-described technical solution, it is preferable that the allocation unit 402 is specifically used for, and provides for the first kind
The resource block of the first preset quantity is distributed in source, is the resource block of second preset quantity of Second Type resource allocation.
In the technical scheme, the quantity for the resource block of first kind resource and Second Type resource allocation can also be
Fixed.
In any of the above-described technical solution, it is preferable that same type of running time-frequency resource is occupied continuous more on frequency domain
A resource block constitutes resource block group；And the allocation unit 402 is also used to, and is the first kind according to preset limit condition
Resource and the Second Type Resource Design distribute the quantity for the resource block that the resource block group is included.
In the technical scheme, the money for including by first kind resource and Second Type Resource Design distribution resource block group
When the quantity of source block, it is contemplated that preset limit condition, so that for first kind resource and Second Type Resource Design point
More rationally and more optimize with resource block.
In any of the above-described technical solution, it is preferable that the preset limit condition include: be any in the LTE system
The ascending resource block of terminal distribution is continuous on frequency domain；Or the ascending resource block distributed for any terminal in the LTE system
It is divided into two clusters, the resource block in each cluster in described two clusters is continuous on frequency domain, between described two clusters on frequency domain
Discontinuously；After meeting conditions above, the quantity of continuous ascending resource block will also meet following formula on frequency domain:
N=2a×3b×5c；
Wherein, N indicates the quantity of the continuous ascending resource block, and a, b, c are the integer more than or equal to 0.
In the technical scheme, the money for including by first kind resource and Second Type Resource Design distribution resource block group
When the quantity of source block, it is contemplated that above-mentioned preset limit condition, so that being first kind resource and Second Type resource
Design distribution resource block more optimizes rationally and more, i.e., when the resource block in resource block group being given any terminal, Ke Yiman
The demand of sufficient any terminal multiple business.
In any of the above-described technical solution, it is preferable that the allocation unit 402 is specifically used for, according to the first kind
The sum of the quantity of the resource block group of resource, the resource block of first kind resource, determines the resource block of the first kind resource
The quantity of the included resource block of group；According to the quantity of the resource block group of the Second Type resource, the money of Second Type resource
The sum of source block determines the quantity for the resource block that the resource block group of the Second Type resource is included.
For example, in LTE system, the resource block group number of first kind resource is 5 groups, the resource block of first kind resource it is total
Number is 25, then needs to guarantee that the sum of quantity of resource block is 25 in 5 groups of resource block groups.
Fig. 5 shows the structural schematic diagram of base station according to an embodiment of the invention.
As shown in figure 5, base station 500 according to an embodiment of the invention, including any one of above-mentioned technical proposal institute
The time-frequency resource allocating device 400 for LTE system stated, therefore, which has and any one of above-mentioned technical proposal
The identical technical effect of time-frequency resource allocating device 400 for LTE system, details are not described herein.
Fig. 6 shows the schematic diagram according to an embodiment of the invention that resource block is distributed by the way of frequency division.
As shown in fig. 6, the occupied resource block of first kind resource is grey, the occupied resource block of Second Type resource
To be colourless, the occupied resource block of first kind resource and the occupied resource block of Second Type resource are handed on frequency domain in pectination
For in the system bandwidth for being distributed in LTE system.Wherein, the occupied continuous multiple resource blocks of same resource type constitute RB group
(i.e. resource block group), for example, RB1~RBn1 constitutes a RB group, RBn1+1~RBn2 constitutes a RB group, RBn2+1~RBn3
A RB group is constituted, RBn3+1~RBn4 constitutes a RB group.
1, for each RB group between same resource type or different resource types, the interior institute on frequency domain of each RB group
The RB number for including can be the same or different, i.e. institute in the number and RBn2+1~RBn3 of the RB that RB1~RBn1 is included
The number for the RB for including can be identical or not identical, the number and RBn2+1~RBn3 of the RB that RBn1+1~RBn2 is included
Included in the number of RB can be identical or not identical.
2, for different resource types, the group number of RB group occupied by each resource type may be same or different,
It can also be determined occupied by each resource type according to the portfolio ratio of low time delay business and general service in LTE system
RB quantity.
3, it is contemplated that the preset limit condition of terminal distribution uplink RB in LTE system, any end as in LTE system
Hold the ascending resource block of distribution continuous on frequency domain；Or it is divided into two for the ascending resource block that any terminal in LTE system is distributed
A cluster, the resource block in each cluster in two clusters is continuous on frequency domain, discontinuous on frequency domain between two clusters；Meet with
After upper condition, the quantity of continuous ascending resource block will also meet following formula on frequency domain:
N=2a×3b×5c；
Wherein, N indicates the quantity of continuous ascending resource block, and a, b, c are the integer more than or equal to 0.In setting RB
The condition can be considered when RB number in group.
4, all terminals in LTE system can use identical time-frequency resource allocating mode, i.e., in LTE system
All terminals for, the case where RB of first kind resource and Second Type resource allocation is duplicate；It may also needle
There are the RB distribution diagram of corresponding first kind resource and Second Type resource, the RB distribution diagram of each terminal to each terminal
It can be the same or different.
Carry out the technical solution that the present invention will be described in detail below by one embodiment:
In this embodiment, the system bandwidth of LTE system is 10M Hz, there is 50 RB, and LTE system in the system bandwidth
Require the portfolio of low time delay less in system, the portfolio of general service is more.
As shown in fig. 7, the occupied resource block of first kind resource is grey, the occupied resource block of Second Type resource
To be colourless, the occupied resource block of first kind resource and the occupied resource block of Second Type resource are handed on frequency domain in pectination
For in the system bandwidth for being distributed in LTE system.
1, it is contemplated that the influence of different business amount, for example, the portfolio of low time delay business is less, the portfolio of general service
It is more, it is that the quantity of the RB of first kind resource allocation is more, is that the quantity of the RB of Second Type resource allocation is more, in Fig. 7
In, it is 39 RB of first kind resource allocation, is 11 RB of Second Type resource allocation.
2, it is contemplated that preset limit condition when being terminal distribution uplink RB among the above, the occupied money of Second Type resource
It may include 5 RB groups in source block, the quantity for the RB for including in each RB group is 1,2,5,2,1 respectively, the RB group comprising 5 RB
Can be assigned when terminal has the more portfolio for requiring low time delay (can certainly be divided when portfolio is lesser
With), the RB group comprising 1,2 RB can be assigned when terminal has the less portfolio for requiring low time delay.
3, it is contemplated that the advantage of Yao Liyong frequency diversity, first kind resource and the occupied RB of Second Type resource all at
Pectination is alternately and approaches uniformity is distributed in whole system bandwidth.
4, each terminal in LTE system can use identical RB distribution diagram, can also be distributed using different RB
Figure.
The technical scheme of the present invention has been explained in detail above with reference to the attached drawings, according to the technical solution of the present invention, can be
The wide uniform or approaches uniformity of regiment commander disposes the occupied resource block of first kind resource and Second Type resource is occupied
Resource block to be more reasonably first kind resource and Second Type resource allocation resource block, and then can be obtained preferably
Obtain frequency diversity gain.And low time delay business is avoided to interrupt, to ensure that the reliability of low time delay business.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of distribution method of time frequency resources for LTE system characterized by comprising
For first kind resource and Second Type resource allocation resource block, wherein the first kind resource and second class
The Transmission Time Interval that type resource is supported is different；
The occupied resource block of the first kind resource and the occupied resource block of Second Type resource are controlled in frequency domain
It is upper to be alternately distributed in the system bandwidth of the LTE system in pectination；
The occupied continuous multiple resource blocks of same type of running time-frequency resource constitute resource block group on frequency domain；It and is described the
The step of one resource type and the Second Type resource allocation resource block, further includes:
It is that the first kind resource and the Second Type Resource Design distribute the resource block group according to preset limit condition
The quantity for the resource block for being included；
The preset limit condition includes:
The ascending resource block distributed for any terminal in the LTE system is continuous on frequency domain；Or
The ascending resource block distributed for any terminal in the LTE system is divided into two clusters, in each cluster in described two clusters
Resource block it is continuous on frequency domain, it is discontinuous on frequency domain between described two clusters；
After meeting any of the above condition, the quantity of continuous ascending resource block will also meet following formula on frequency domain:
N=2a×3b×5c；
Wherein, N indicates the quantity of the continuous ascending resource block, and a, b, c are the integer more than or equal to 0.
2. the distribution method of time frequency resources according to claim 1 for LTE system, which is characterized in that be described first
It the step of resource type and the Second Type resource allocation resource block, specifically includes:
Calculate the ratio of the portfolio of the portfolio of first kind business and Second Type business in the LTE system；
According to resource block total quantity in the value of the ratio and the system bandwidth, it is determined as the first kind resource allocation
The quantity of the quantity of resource block and the resource block for the Second Type resource allocation.
3. the distribution method of time frequency resources according to claim 1 for LTE system, which is characterized in that be described first
It the step of resource type and the Second Type resource allocation resource block, specifically includes:
It is default for the Second Type resource allocation second for the resource block of first preset quantity of first kind resource allocation
The resource block of quantity.
4. a kind of time-frequency resource allocating device for LTE system characterized by comprising
Allocation unit, for being first kind resource and Second Type resource allocation resource block, wherein the first kind resource
It is different with the Transmission Time Interval that the Second Type resource is supported；
Control unit is connected to the allocation unit, for controlling the occupied resource block of the first kind resource and described
The occupied resource block of Second Type resource is alternately distributed in the system bandwidth of the LTE system on frequency domain in pectination；
The occupied continuous multiple resource blocks of same type of running time-frequency resource constitute resource block group on frequency domain；And the distribution
Unit is also used to,
It is that the first kind resource and the Second Type Resource Design distribute the resource block group according to preset limit condition
The quantity for the resource block for being included；
The preset limit condition includes:
The ascending resource block distributed for any terminal in the LTE system is continuous on frequency domain；Or
The ascending resource block distributed for any terminal in the LTE system is divided into two clusters, in each cluster in described two clusters
Resource block it is continuous on frequency domain, it is discontinuous on frequency domain between described two clusters；
After meeting any of the above condition, the quantity of continuous ascending resource block will also meet following formula on frequency domain:
N=2a×3b×5c；
Wherein, N indicates the quantity of the continuous ascending resource block, and a, b, c are the integer more than or equal to 0.
5. the time-frequency resource allocating device according to claim 4 for LTE system, which is characterized in that the distribution is single
Member includes:
Computing unit, for calculating the portfolio of the portfolio of first kind business and Second Type business in the LTE system
Ratio；
Determination unit is determined as described first for resource block total quantity in the value and the system bandwidth according to the ratio
The quantity of the resource block of resource type distribution and the quantity of the resource block for the Second Type resource allocation.
6. the time-frequency resource allocating device according to claim 4 for LTE system, which is characterized in that the distribution is single
Member is specifically used for,
It is default for the Second Type resource allocation second for the resource block of first preset quantity of first kind resource allocation
The resource block of quantity.
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| CN105979593B (en) * | 2016-05-19 | 2019-08-06 | 武汉虹信通信技术有限责任公司 | A kind of user scheduling and resource allocation methods and device |
| CN105873218B (en) * | 2016-05-19 | 2019-03-15 | 北京北方烽火科技有限公司 | A kind of user scheduling and resource allocation methods and device |
| CN107623649B (en) * | 2016-07-15 | 2020-01-03 | 上海朗帛通信技术有限公司 | Method and device in wireless transmission |
| CN110545585B (en) * | 2016-07-28 | 2023-02-24 | 上海朗帛通信技术有限公司 | Method and device in wireless communication |
| EP3549270B1 (en) * | 2016-11-29 | 2023-07-12 | Telefonaktiebolaget LM Ericsson (PUBL) | Uplink hopping pattern for contention-based reliable communication |
| CN110149191B (en) | 2017-04-28 | 2020-12-25 | 华为技术有限公司 | Parameter configuration method and device |
| CN109391417B (en) * | 2017-08-11 | 2022-05-13 | 华为技术有限公司 | Method, device and system for transmitting downlink control information |
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