CN106332285A - Semi-static resource allocation method and base station - Google Patents
Semi-static resource allocation method and base station Download PDFInfo
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- CN106332285A CN106332285A CN201510369541.6A CN201510369541A CN106332285A CN 106332285 A CN106332285 A CN 106332285A CN 201510369541 A CN201510369541 A CN 201510369541A CN 106332285 A CN106332285 A CN 106332285A
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- 238000013468 resource allocation Methods 0.000 title abstract description 19
- 230000003068 static effect Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
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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
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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Abstract
The invention provides a semi-static resource allocation method and a base station. The method comprises steps: the base station presets N sub frames and sub frame identifiers according to a semi-static scheduling cycle; according to the sub frame identifiers, the base station sets a sub frame priority sequence for each cell in the base station; sub frame priority sequences for adjacent cells are different; and according to the set sub frame priority sequence, the base station determines a sub frame in the N sub frames for allocating semi-static resources to voice UE in each cell, and the semi-static resources are allocated for the UE in the determined sub frame. According to the semi-static resource allocation method and the base station provided by the invention, the probability of resource allocation conflicts in the semi-static scheduling can be reduced, same-frequency interference caused by the resource allocation conflicts is thus reduced, and the voice quality is enhanced.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of semi-persistent resource distribution method and base station.
Background technology
For speech business, VoP size is the most relative with speech data packet interarrival times
Fixing, in order to reduce the control information overhead of speech data packet scheduling, Long Term Evolution (Long Term
Evolution, hereinafter referred to as: LTE) introduce semi-persistent scheduling (Semi-Persistent Scheduling).
Semi-persistent scheduling refers to during the scheduled transmission of LTE, and base station (eNB) only adjusts for the first time
Degree send out at present Physical Downlink Control Channel (Physical Downlink Control Channel, hereinafter referred to as:
PDCCH) information, subscriber equipment (User Equipment, hereinafter referred to as: UE) is according to base station for the first time
The PDCCH issued, records this PDCCH relevant information, and afterwards within the fixed cycle, UE is at record
The instruction of PDCCH relevant information fixed resource on carry out transmission or the reception of VoP, this is solid
Determining resource is that base station is spaced apart the cycle with VoP the time of advent, is language in fixing time domain and frequency domain
Sound business random assortment.Use semi-persistent scheduling transmits, and can make full use of VoP periodically
The feature arrived, a sub-authorization, cycle use, can effectively save LTE system for dispatching instruction
PDCCH resource.
In the case of identical networking, it is neighbor cell that above-mentioned semi-persistent resource distribution method can exist base station
Voice user distributes identical time domain and the situation of frequency domain semi-persistent resource, can produce with frequency dry in the case of being somebody's turn to do
Disturb.Owing to semi-static scheduling cycle is fixed, the co-channel interference that semi-persistent resource conflict causes will be with whole
Semi-persistent scheduling process, thus error code increase, the increase of bag propagation delay time, spectrum efficiency can be caused to decline,
Affect voice quality.
Summary of the invention
The present invention provides a kind of semi-persistent resource distribution method and base station, provides by reducing in semi-persistent scheduling
The probability of source distribution conflict, thus reduce the co-channel interference that resource allocation conflict causes, promote voice quality.
First aspect, the present invention provides a kind of semi-persistent resource distribution method, including:
Base station pre-sets N number of subframe and subframe mark according to semi-static scheduling cycle, and N is more than 1
Positive integer；
It is preferential that described base station is respectively provided with subframe according to each community that described subframe is designated in described base station
Level order, the subframe priority orders of neighbor cell is different；
Described base station, according to the subframe priority orders arranged, is defined as each little in described N number of subframe
The subframe of voice user's equipment UE distribution semi-persistent resource in district, and for described UE in the subframe determined
Distribution semi-persistent resource.
Further, described subframe is designated numeral, and described base station is designated described base according to described subframe
Each community in standing is respectively provided with subframe priority orders, and the subframe priority orders of neighbor cell is different,
Including:
Described base station is according to the priority of first subframe of community number, number of sub-frames N and neighbor cell
The interval maximized principle of rank is that each community is respectively provided with subframe priority orders.
Further, described base station is according to the subframe priority orders arranged, in described N number of subframe really
It is set to the subframe of voice user's equipment UE distribution semi-persistent resource of each community, and in the subframe determined
The upper described UE of being distributes semi-persistent resource, including:
Described base station determines first subframe according to the subframe priority orders of community；
Described base station carries out semi-persistent resource distribution in first subframe, if quiet first subframe upper half
State resource is allocated successfully, then terminate distribution, otherwise according to the subframe priority orders of community postpone successively to
Next subframe carries out semi-persistent resource distribution until being allocated successfully；
If all distributing failure successively in described N number of subframe, then terminate distribution.
Second aspect, the present invention provides a kind of base station, including:
First arranges module, for pre-setting N number of subframe and subframe mark according to semi-static scheduling cycle,
N is the positive integer more than 1；
Second arranges module, sets respectively for each community being designated in described base station according to described subframe
Putting subframe priority orders, the subframe priority orders of neighbor cell is different；
Processing module, according to the subframe priority orders arranged, is defined as each in described N number of subframe
The subframe of voice user's equipment UE distribution semi-persistent resource of community, and for described in the subframe determined
UE distributes semi-persistent resource.
Further, described subframe is designated numeral, described second arrange module for:
The priority interval rank of first subframe according to community number, number of sub-frames N and neighbor cell
Maximized principle is that each community is respectively provided with subframe priority orders.
Further, described processing module is used for:
Subframe priority orders according to community determines first subframe；
First subframe carries out semi-persistent resource distribution, if dividing at first subframe upper half static resource
It is made into merit, then terminates distribution, otherwise postpone successively to next height according to the subframe priority orders of community
Frame carries out semi-persistent resource distribution until being allocated successfully；
If all distributing failure successively in described N number of subframe, then terminate distribution.
The semi-persistent resource distribution method of present invention offer and base station, by base station according to semi-persistent scheduling week
Phase pre-sets N number of subframe and subframe mark, and then base station is designated each community according to subframe and arranges son
Frame priority orders, the subframe priority orders of neighbor cell is different, and last base station is according to the subframe arranged
Priority orders, is defined as the son of the voice UE distribution semi-persistent resource of each community in N number of subframe
Frame, and in the subframe determined, distribute semi-persistent resource for UE, owing to neighbor cell subframe priority is suitable
Sequence is different, and the probability that the semi-persistent resource of neighbor cell allocation is identical in time domain reduces, and therefore can reduce
The probability of resource allocation conflict in semi-persistent scheduling, thus reduce the co-channel interference that resource allocation conflict causes,
Promote voice quality.
Accompanying drawing explanation
In order to be illustrated more clearly that the present invention or technical scheme of the prior art, below will to embodiment or
In description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of semi-persistent resource distribution method embodiment one of the present invention；
Fig. 2 is the flow chart of semi-persistent resource distribution method embodiment two of the present invention；
Fig. 3 is the structural representation of base station of the present invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with in the present invention
Accompanying drawing, is clearly and completely described the technical scheme in the present invention, it is clear that described enforcement
Example is a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention,
The every other enforcement that those of ordinary skill in the art are obtained under not making creative work premise
Example, broadly falls into the scope of protection of the invention.
Fig. 1 is the flow chart of semi-persistent resource distribution method embodiment one of the present invention, as it is shown in figure 1, this
The method of embodiment may include that
S101, base station pre-set N number of subframe and subframe mark according to semi-static scheduling cycle, and N is big
In the positive integer of 1.
Specifically, base station pre-sets N number of subframe and subframe mark according to semi-static scheduling cycle, N number of
Subframe was distributed within the semi-static cycle, wherein, additionally depended on the upper of TD-LTE for TD-LTE, N
Descending sub frame proportioning.The most semi-static cycle is 20ms, and ratio of uplink subframe to downlink subframe is 1, then N is equal to 20,
20ms has 12 descending sub frames and 8 sub-frame of uplink.Subframe mark can arbitrarily be arranged, and such as may be used
It is set to 1,2 ... N.
Each community that S102, base station are designated in base station according to subframe is respectively provided with subframe priority orders,
The subframe priority orders of neighbor cell is different.
Wherein, different according to the ratio of uplink subframe to downlink subframe under heterogeneous networks, subframe priority orders includes
Row subframe priority orders and descending sub frame priority orders.For sub-frame of uplink and descending sub frame, base station
Distribution method be similar to.Arranging of subframe mark sets gradually according to order from small to large, so as far as possible
Priority orders can be realized by the order that subframe identifies.
Specifically, S102 has two kinds of enforceable modes, as follows:
Mode one: base station side arranges subframe priority orders for each community in advance by identifying according to subframe,
The subframe priority orders of neighbor cell is different, be exactly i.e. base station side by artificial setting, the most total
K community, arranges K different subframe priority orders, and the corresponding subframe priority in each community is suitable
Sequence.
Further, on the basis of mode one, when subframe is designated numeral, base station according to community number,
The priority interval maximized principle of rank of first subframe of number of sub-frames N and neighbor cell is each
Community is respectively provided with subframe priority orders, and in subframe priority orders, the priority of first subframe determines
After, the order that the priority of remaining subframe identifies from small to large according to subframe sets gradually.
The most semi-static cycle is 20ms, and ratio of uplink subframe to downlink subframe is 1, following behavior example, and 20ms has
12 descending sub frames, the subframe mark of 12 descending sub frames is such as respectively as follows:
0/1/2/5/6/7/10/11/12/15/16/17。
Assuming there are 3 neighbor cells, it is as follows to be that these three community arranges subframe priority orders:
Community 1:0/1/2/5/6/7/10/11/12/15/16/17
Community 2:6/7/10/11/12/15/16/17/0/1/2/5
Community 3:12/15/16/17/0/1/2/5/6/7/10/11
Community 1 and 3 priority of first sub-frame interval of community 2, community 2 and the first of community 3
3 priority of individual sub-frame interval, community 1 and 6 priority of first sub-frame interval of community 3.Right
Similar with descending in up distribution method.The priority bay level of the first subframe based on neighbor cell
The most maximized principle is arranged, and so can reduce the probability of resource allocation conflict further, reach more preferable
Effect.
In mode two: S101, the subframe of N number of subframe is identified and is set to 0,1 by base station ... during N-1, base station
When subframe priority orders is set for each community, multiple different subframe priority orders can be pre-set
With the corresponding relation of PCI mould M, for each community, in LTE system when PCI plans, need to try one's best
Ensure that the PCI mould M of neighbor cell is unequal, as taken PCI mould 0/3/6/20, therefore this enforcement of the present invention
In can directly utilize this characteristic, base station can be according to the result after PCI mould M and the correspondence pre-set
Relation obtains the subframe priority orders of each community, and the subframe priority of each community so obtained is suitable
Sequence is the most different.
S103, base station, according to the subframe priority orders arranged, are defined as each community in N number of subframe
Voice UE distribution semi-persistent resource subframe, and in the subframe determined for UE distribution semi-persistent resource.
When being embodied as, S103 is specifically as follows:
Base station determines first subframe according to the subframe priority orders of community, and base station is in first subframe
Carry out semi-persistent resource distribution, if first subframe upper half static resource allocation success, then terminating distribution,
Otherwise postpone successively to next subframe according to the subframe priority orders of community and carry out semi-persistent resource distribution
Until being allocated successfully；If all distributing failure successively in N number of subframe, then terminate distribution.
Specifically, base station is each community when arranging subframe priority orders, due to neighbor cell subframe
Priority orders is different, and base station carries out half according to the subframe priority orders of each community in N number of subframe
Static resource allocation, so so that the semi-persistent resource of neighbor cell allocation staggers in time domain,
Can be the same or different on frequency domain, frequency domain can be with random assortment, the semi-static money of neighbor cell allocation
The probability reduction that source is identical in time domain, therefore can reduce the probability of resource allocation conflict in semi-persistent scheduling,
Thus reduce the co-channel interference that resource allocation conflict causes, promote voice quality.
The semi-persistent resource distribution method that the present embodiment provides, pre-according to semi-static scheduling cycle by base station
First arranging N number of subframe and subframe mark, then base station is designated each community according to subframe to arrange subframe excellent
First level order, the subframe priority orders of neighbor cell is different, and last base station is preferential according to the subframe arranged
Level order, is defined as the subframe of the voice UE distribution semi-persistent resource of each community in N number of subframe,
And in the subframe determined, distribute semi-persistent resource for UE, due to neighbor cell subframe priority orders not
With, the probability that the semi-persistent resource of neighbor cell allocation is identical in time domain reduces, and therefore can reduce by half quiet
The probability of resource allocation conflict in state scheduling, thus reduce the co-channel interference that resource allocation conflict causes, carry
Rise voice quality.
Use a specific embodiment below, the method shown in Fig. 1 is described in detail.
Fig. 2 is the flow chart of semi-persistent resource distribution method embodiment two of the present invention, as in figure 2 it is shown, this
The method of embodiment may include that
S201, base station pre-set N number of subframe and subframe mark, and N number of subframe is at semi-static scheduling cycle
Interior distribution, such as semi-static scheduling cycle be 20ms, N be 20, base station arrange, the mark of 20 subframes
Be followed successively by 0,1 ... N-1.
If ratio of uplink subframe to downlink subframe is 1,20ms has 12 descending sub frames and 8 sub-frame of uplink, 12
The subframe mark of individual descending sub frame is respectively as follows: 0/1/2/5/6/7/10/11/12/15/16/17,8 sub-frame of uplink
Subframe mark be respectively as follows: 3/4/8/9/13/14/18/19.
S202, base station are preferential according to first subframe of community number, number of sub-frames N and neighbor cell
The level interval maximized principle of rank is that each community is respectively provided with subframe priority orders.
Such as there are 3 neighbor cells in base station, can be arranged by artificial, arrange descending for these three community
Subframe priority orders is as follows:
Community 1:0/1/2/5/6/7/10/11/12/15/16/17
Community 2:6/7/10/11/12/15/16/17/0/1/2/5
Community 3:12/15/16/17/0/1/2/5/6/7/10/11
Sub-frame of uplink priority orders is as follows:
Community 1:3/4/8/9/13/14/18/19
Community 2:8/9/13/14/18/19/3/4
Community 3:13/14/18/19/3/4/8/9
S203, for each community, base station determines first subframe according to subframe priority orders.
Subframe priority orders includes sub-frame of uplink priority orders and descending sub frame priority orders.
S204, base station carry out semi-persistent resource distribution in first subframe, if first subframe upper half
Static resource allocation success, then terminate distribution, otherwise postpone successively according to the subframe priority orders of community
Semi-persistent resource distribution is carried out until being allocated successfully to next subframe；If all dividing in N number of subframe successively
Join unsuccessfully, then terminate distribution.
By the example above, as a example by sub-frame of uplink priority orders, distribute semi-static money to first community
During source, base station determines first according to the sub-frame of uplink priority orders 3/4/8/9/13/14/18/19 of community 1
Subframe is 3, preferentially carries out semi-persistent resource distribution in subframe 3, if semi-persistent resource in subframe 3
It is allocated successfully, then terminates distribution, otherwise postpone successively to next subframe for according to subframe priority orders
Row semi-persistent resource is distributed until being allocated successfully.If all distributing failure successively in N number of subframe, then terminate
Distribution.Similar with up for descending distribution method.
Fig. 3 is the structural representation of base station of the present invention, as it is shown on figure 3, the base station of the present embodiment can be wrapped
Include: first arranging module 10, second arrange module 11 and processing module 12, wherein, first arranges mould
Block 10 is for pre-setting N number of subframe and subframe mark according to semi-static scheduling cycle, and N is more than 1
Positive integer.Second arranges module 11 is respectively provided with for each community being designated in base station according to subframe
Subframe priority orders, the subframe priority orders of neighbor cell is different.Processing module 12 is according to setting
Subframe priority orders, is defined as voice user's equipment UE distribution half of each community in N number of subframe
The subframe of static resource, and distribute semi-persistent resource for UE in the subframe determined.
Subframe is designated numeral, second arrange module 11 for: according to community number, number of sub-frames N
With the priority interval maximized principle of rank of first subframe of neighbor cell is that each community sets respectively
Put subframe priority orders.
Specifically, processing module 13 is used for: determine first subframe according to the subframe priority orders of community,
First subframe carries out semi-persistent resource distribution, if becoming first subframe upper half static resource allocation
Merit, then terminate distribution, otherwise postpones successively to next subframe for according to the subframe priority orders of community
Row semi-persistent resource is distributed until being allocated successfully；If all distributing failure successively in N number of subframe, then terminate
Distribution.
The device of the present embodiment, may be used for performing the technical scheme of embodiment of the method shown in Fig. 1, in fact
Existing principle is similar to, and here is omitted.
The base station that the present embodiment provides, arranges module by first and pre-sets according to semi-static scheduling cycle
N number of subframe and subframe mark, second arranges module is designated each community according to subframe to arrange subframe preferential
Level order, the subframe priority orders of neighbor cell is different, and processing module is according to the subframe priority arranged
Sequentially, N number of subframe is defined as the subframe of the voice UE distribution semi-persistent resource of each community, and
The subframe determined distributes semi-persistent resource for UE, owing to neighbor cell subframe priority orders is different,
The probability that the semi-persistent resource of neighbor cell allocation is identical in time domain reduces, and therefore can reduce semi-static tune
The probability of resource allocation conflict in degree, thus reduce the co-channel interference that resource allocation conflict causes, promote language
Sound quality.
One of ordinary skill in the art will appreciate that: realize all or part of step of above-mentioned each method embodiment
Suddenly can be completed by the hardware that programmed instruction is relevant.Aforesaid program can be stored in a computer can
Read in storage medium.This program upon execution, performs to include the step of above-mentioned each method embodiment；And
Aforesaid storage medium includes: ROM, RAM, magnetic disc or CD etc. are various can store program code
Medium.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, rather than right
It limits；Although the present invention being described in detail with reference to foregoing embodiments, this area common
Skilled artisans appreciate that the technical scheme described in foregoing embodiments still can be modified by it,
Or the most some or all of technical characteristic is carried out equivalent；And these amendments or replacement, and
The essence not making appropriate technical solution departs from the scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a semi-persistent resource distribution method, it is characterised in that including:
Base station pre-sets N number of subframe and subframe mark according to semi-static scheduling cycle, and N is more than 1
Positive integer；
It is preferential that described base station is respectively provided with subframe according to each community that described subframe is designated in described base station
Level order, the subframe priority orders of neighbor cell is different；
Described base station, according to the subframe priority orders arranged, is defined as each little in described N number of subframe
The subframe of voice user's equipment UE distribution semi-persistent resource in district, and for described UE in the subframe determined
Distribution semi-persistent resource.
Method the most according to claim 1, it is characterised in that described subframe is designated numeral, institute
Stating base station, to be respectively provided with subframe priority according to each community that described subframe is designated in described base station suitable
Sequence, the subframe priority orders of neighbor cell is different, including:
Described base station is according to the priority of first subframe of community number, number of sub-frames N and neighbor cell
The interval maximized principle of rank is that each community is respectively provided with subframe priority orders.
Method the most according to claim 1 and 2, it is characterised in that described base station is according to setting
Subframe priority orders, the voice user's equipment UE being defined as each community in described N number of subframe is divided
Join the subframe of semi-persistent resource, and distribute semi-persistent resource for described UE in the subframe determined, including:
Described base station determines first subframe according to the subframe priority orders of community；
Described base station carries out semi-persistent resource distribution in first subframe, if quiet first subframe upper half
State resource is allocated successfully, then terminate distribution, otherwise according to the subframe priority orders of community postpone successively to
Next subframe carries out semi-persistent resource distribution until being allocated successfully；
If all distributing failure successively in described N number of subframe, then terminate distribution.
4. a base station, it is characterised in that including:
First arranges module, for pre-setting N number of subframe and subframe mark according to semi-static scheduling cycle,
N is the positive integer more than 1；
Second arranges module, sets respectively for each community being designated in described base station according to described subframe
Putting subframe priority orders, the subframe priority orders of neighbor cell is different；
Processing module, according to the subframe priority orders arranged, is defined as each in described N number of subframe
The subframe of voice user's equipment UE distribution semi-persistent resource of community, and for described in the subframe determined
UE distributes semi-persistent resource.
Base station the most according to claim 4, it is characterised in that described subframe is designated numeral, institute
State second arrange module for:
The priority interval rank of first subframe according to community number, number of sub-frames N and neighbor cell
Maximized principle is that each community is respectively provided with subframe priority orders.
6. according to the base station described in claim 4 or 5, it is characterised in that described processing module is used for:
Subframe priority orders according to community determines first subframe；
First subframe carries out semi-persistent resource distribution, if dividing at first subframe upper half static resource
It is made into merit, then terminates distribution, otherwise postpone successively to next height according to the subframe priority orders of community
Frame carries out semi-persistent resource distribution until being allocated successfully；
If all distributing failure successively in described N number of subframe, then terminate distribution.
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| CN110214431A (en) * | 2017-01-26 | 2019-09-06 | Lg 电子株式会社 | The method of data communication and the terminal using this method are executed in a wireless communication system |
| CN110870366A (en) * | 2017-11-28 | 2020-03-06 | Oppo广东移动通信有限公司 | Method for allocating resources in user equipment and user equipment |
| CN110891310A (en) * | 2018-09-07 | 2020-03-17 | 成都鼎桥通信技术有限公司 | Private network voice quality improving method, device and system |
| CN110913368A (en) * | 2018-09-18 | 2020-03-24 | 大唐移动通信设备有限公司 | Resource scheduling method and device in rail transit communication system |
| CN111083745A (en) * | 2018-10-19 | 2020-04-28 | 成都鼎桥通信技术有限公司 | Scheduling method and device |
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