CN106332285B - Semi-persistent resource distribution method and base station - Google Patents
Semi-persistent resource distribution method and base station Download PDFInfo
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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 present invention provides a kind of semi-persistent resource distribution method and base station.This method comprises: base station presets N number of subframe according to semi-static scheduling cycle and subframe identifies, base station is identified as each cell in base station according to subframe and subframe priority orders is respectively set, the subframe priority orders of neighboring community are different, base station is according to the subframe priority orders of setting, it is determined as the subframe of the voice UE distribution semi-persistent resource of each cell in N number of subframe, and distributes semi-persistent resource in determining subframe for UE.Semi-persistent resource distribution method provided by the invention and base station, can reduce the probability of resource allocation conflict in semi-persistent scheduling, to reduce co-channel interference caused by resource allocation conflict, promote voice quality.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of semi-persistent resource distribution method and base stations.
Background technique
For voice service, VoP size and voice data packet interarrival times are all relatively fixed, are
Reduce the control information overhead of voice 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 that during the scheduled transmission of LTE, base station (eNB) only issues physics when dispatching first time
Down control channel (Physical Downlink Control Channel, hereinafter referred to as: PDCCH) information, user equipment
The PDCCH that (User Equipment, hereinafter referred to as: UE) is issued for the first time according to base station, records the PDCCH relevant information, it
Afterwards within the fixed cycle, UE record PDCCH relevant information indicate fixed resource on carry out VoP transmission or
It receives, which is base station using voice data packet interarrival times as the period, is voice in fixed time domain and frequency domain
What business was randomly assigned.The characteristics of being transmitted using semi-persistent scheduling, VoP can be made full use of periodically to reach, once
Authorization, period use, and can effectively save LTE system for dispatching the PDCCH resource of instruction.
In identical networking, above-mentioned semi-persistent resource distribution method can have the voice user that base station is neighboring community
The case where distributing identical time domain and frequency domain semi-persistent resource, can generate co-channel interference in this case.Due to semi-persistent scheduling week
Phase is fixed, and co-channel interference caused by semi-persistent resource conflicts will be with entire semi-persistent scheduling process, to will lead to error code increasing
Add, the increase of packet propagation delay time, spectrum efficiency decline, influences voice quality.
Summary of the invention
The present invention provides a kind of semi-persistent resource distribution method and base station, and passing through reduces resource allocation punching in semi-persistent scheduling
Prominent probability promotes voice quality to reduce co-channel interference caused by resource allocation conflict.
In a first aspect, the present invention provides a kind of semi-persistent resource distribution method, comprising:
Base station presets N number of subframe according to semi-static scheduling cycle and subframe identifies, and N is the positive integer greater than 1；
The base station is identified as each cell in the base station according to the subframe and subframe priority orders is respectively set,
The subframe priority orders of neighboring community are different；
The base station is determined as the voice of each cell according to the subframe priority orders of setting in N number of subframe
User equipment (UE) distributes the subframe of semi-persistent resource, and is the UE distribution semi-persistent resource in determining subframe.
Further, the subframe is identified as number, and the base station is identified as every in the base station according to the subframe
Subframe priority orders are respectively set in one cell, and the subframe priority orders of neighboring community are different, comprising:
The base station is according to the priority interval rank of first subframe of cell number, number of sub-frames N and neighboring community
Maximized principle is that subframe priority orders are respectively set in each cell.
Further, the base station is determined as each small according to the subframe priority orders of setting in N number of subframe
The subframe of voice user's equipment UE distribution semi-persistent resource in area, and be that the UE distributes semi-static money in determining subframe
Source, comprising:
The base station determines first subframe according to the subframe priority orders of cell；
The base station carries out semi-persistent resource distribution in first subframe, if in first subframe upper half static resource point
With success, then terminate to distribute, otherwise successively postponing according to the subframe priority orders of cell to next subframe, it is semi-static to carry out
Resource allocation is until be allocated successfully；
If successively all distribution failures in N number of subframe, terminate to distribute.
Second aspect, the present invention provide a kind of base station, comprising:
First setup module, for presetting N number of subframe and subframe mark according to semi-static scheduling cycle, N is greater than 1
Positive integer；
Second setup module, for being identified as each cell in the base station according to the subframe, that subframe is respectively set is excellent
First grade sequence, the subframe priority orders of neighboring community are different；
Processing module is determined as the voice of each cell according to the subframe priority orders of setting in N number of subframe
User equipment (UE) distributes the subframe of semi-persistent resource, and is the UE distribution semi-persistent resource in determining subframe.
Further, the subframe is identified as number, and second setup module is used for:
Priority interval rank according to first subframe of cell number, number of sub-frames N and neighboring community is maximized
Principle is that subframe priority orders are respectively set in each cell.
Further, the processing module is used for:
First subframe is determined according to the subframe priority orders of cell；
Semi-persistent resource distribution is carried out in first subframe, if in first subframe upper half static resource allocation success,
Then terminate to distribute, otherwise successively postpones according to the subframe priority orders of cell and carry out semi-persistent resource distribution to next subframe
Until being allocated successfully；
If successively all distribution failures in N number of subframe, terminate to distribute.
Semi-persistent resource distribution method provided by the invention and base station are set by base station according to semi-static scheduling cycle in advance
N number of subframe and subframe mark are set, then base station is identified as each cell setting subframe priority orders, neighboring community according to subframe
Subframe priority orders it is different, last base station is determined as each small according to the subframe priority orders of setting in N number of subframe
The subframe of the voice UE distribution semi-persistent resource in area, and semi-persistent resource is distributed for UE in determining subframe, due to adjacent small
Area's subframe priority orders are different, and identical probability reduces the semi-persistent resource of neighbor cell allocation in the time domain, therefore can drop
The probability of resource allocation conflict in low semi-persistent scheduling promotes voice to reduce co-channel interference caused by resource allocation conflict
Quality.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of the present invention or technical solution in the prior art
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is of the invention one
A little embodiments for those of ordinary skill in the art without any creative labor, can also be according to this
A little attached drawings obtain other attached 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 schematic diagram of base station of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the attached drawing in the present invention, to this
Technical solution in invention is clearly and completely described, it is clear that and described embodiments are some of the embodiments of the present invention,
Instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative labor
Every other embodiment obtained under the premise of dynamic, shall fall within the protection scope of the present invention.
Fig. 1 is the flow chart of semi-persistent resource distribution method embodiment one of the present invention, as shown in Figure 1, the side of the present embodiment
Method may include:
S101, base station presets N number of subframe according to semi-static scheduling cycle and subframe identifies, and N is just whole greater than 1
Number.
Specifically, base station presets N number of subframe according to semi-static scheduling cycle and subframe identifies, and N number of subframe is quiet half
Distribution in the state period, wherein the ratio of uplink subframe to downlink subframe of TD-LTE is additionally depended on for TD-LTE, N.Such as the semi-static period is
20ms, ratio of uplink subframe to downlink subframe 1, then N shares 12 downlink subframes and 8 sub-frame of uplink equal to 20,20ms.Subframe mark can
To be arbitrarily arranged, such as it may be configured as 1,2 ... N.
S102, base station are identified as each cell in base station according to subframe and subframe priority orders are respectively set, adjacent small
The subframe priority orders in area are different.
Wherein, different according to the ratio of uplink subframe to downlink subframe under heterogeneous networks, subframe priority orders include that sub-frame of uplink is excellent
First grade sequence and downlink subframe priority orders.For sub-frame of uplink and downlink subframe, the distribution method of base station is similar.Subframe mark
The setting of knowledge is set gradually according to sequence from small to large as far as possible, and such priority orders can be by the sequence that subframe identifies come real
It is existing.
Specifically, there are two types of enforceable modes in S102, as follows:
Mode one: base station side is adjacent small by the way that subframe priority orders are arranged for each cell in advance according to subframe mark
The subframe priority orders in area are different, that is, are exactly base station side by artificial setting, such as share K cell, and K difference is arranged
Subframe priority orders, the corresponding subframe priority orders of each cell.
Further, on the basis of mode one, when subframe is identified as number, base station is according to cell number, number of sub-frames N
It is preferential to be that subframe is respectively set in each cell with the maximized principle of priority interval rank of first subframe of neighboring community
Sequentially, after the priority of first subframe determines in subframe priority orders, the priority of remaining subframe identifies grade according to subframe
Sequence from small to large is set gradually.
Such as the semi-static period is 20ms, ratio of uplink subframe to downlink subframe 1, following behavior example, 20ms shares 12 downlink
The subframe mark of frame, 12 downlink subframes is for example respectively as follows: 0/1/2/5/6/7/10/11/12/15/16/17.
Assuming that there are 3 neighboring communities, it is as follows subframe priority orders can be set for these three cells:
Cell 1:0/1/2/5/6/7/10/11/12/15/16/17
Cell 2:6/7/10/11/12/15/16/17/0/1/2/5
Cell 3:12/15/16/17/0/1/2/5/6/7/10/11
First sub-frame interval 3 of first sub-frame interval, 3 priority of cell 1 and cell 2, cell 2 and cell 3
Priority, first sub-frame interval, 6 priority of cell 1 and cell 3.It is similar with downlink for the distribution method of uplink.Base
It is arranged in the maximized principle of priority interval rank of first subframe of neighboring community, resource can be further decreased in this way
The probability for distributing conflict, reaches better effect.
When the subframe mark of N number of subframe is set 0,1 ... N-1 by base station in mode two: S101, base station is that each cell is set
When setting subframe priority orders, the corresponding relationship of multiple and different subframe priority orders and PCI mould M can be preset, for
Each cell need to guarantee that the PCI mould M of neighboring community is unequal as far as possible, such as take PCI mould 0/3/ in LTE system in PCI planning
6/20, therefore this characteristic can be directly utilized in this implementation of the invention, base station can be set according to the result after PCI mould M and in advance
The corresponding relationship set obtains the subframe priority orders of each cell, and the subframe priority orders of each cell obtained in this way are all
It is different.
S103, base station are determined as voice UE points of each cell according to the subframe priority orders of setting in N number of subframe
Subframe with semi-persistent resource, and semi-persistent resource is distributed in determining subframe for UE.
When it is implemented, S103 is specifically as follows:
Base station determines first subframe according to the subframe priority orders of cell, and it is quiet that base station carries out half in first subframe
State resource allocation, it is otherwise excellent according to the subframe of cell if terminating to distribute in first subframe upper half static resource allocation success
First grade sequence, which successively postpones, carries out semi-persistent resource distribution until being allocated successfully to next subframe；If successively in N number of subframe
All distribution failures, then terminate to distribute.
Specifically, when base station is that subframe priority orders are arranged in each cell, since neighboring community's subframe priority is suitable
Sequence is different, and base station carries out semi-persistent resource distribution according to the subframe priority orders of each cell in N number of subframe, in this way can be with
So that the semi-persistent resource of neighbor cell allocation is staggered in the time domain, it can be the same or different on frequency domain, frequency domain can
To be randomly assigned, identical probability reduces the semi-persistent resource of neighbor cell allocation in the time domain, therefore can reduce semi-static tune
The probability of resource allocation conflict in degree promotes voice quality to reduce co-channel interference caused by resource allocation conflict.
Semi-persistent resource distribution method provided in this embodiment presets N according to semi-static scheduling cycle by base station
A subframe and subframe mark, then base station is identified as each cell setting subframe priority orders according to subframe, neighboring community
Subframe priority orders are different, and last base station is determined as each cell according to the subframe priority orders of setting in N number of subframe
Voice UE distribution semi-persistent resource subframe, and in determining subframe for UE distribute semi-persistent resource, due to neighboring community
Subframe priority orders are different, and identical probability reduces the semi-persistent resource of neighbor cell allocation in the time domain, therefore can reduce
The probability of resource allocation conflict in semi-persistent scheduling promotes voice matter to reduce co-channel interference caused by resource allocation conflict
Amount.
A specific embodiment is used below, and 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 shown in Fig. 2, the side of the present embodiment
Method may include:
S201, base station preset N number of subframe and subframe mark, N number of subframe are distributed in semi-static scheduling cycle, such as
Semi-static scheduling cycle is 20ms, N 20, base station setting, the mark of 20 subframes is followed successively by 0,1 ... N-1.
If ratio of uplink subframe to downlink subframe is that 1,20ms shares 12 downlink subframes and 8 sub-frame of uplink, 12 downlink subframes
The subframe mark that subframe mark is respectively as follows: 0/1/2/5/6/7/10/11/12/15/16/17,8 sub-frame of uplink is respectively as follows: 3/4/
8/9/13/14/18/19。
S202, base station are according to the priority interval rank of first subframe of cell number, number of sub-frames N and neighboring community
Maximized principle is that subframe priority orders are respectively set in each cell.
Such as have 3 neighboring communities in base station, downlink subframe priority can be set for these three cells by being manually arranged
Sequence is as follows:
Cell 1:0/1/2/5/6/7/10/11/12/15/16/17
Cell 2:6/7/10/11/12/15/16/17/0/1/2/5
Cell 3:12/15/16/17/0/1/2/5/6/7/10/11
Sub-frame of uplink priority orders are as follows:
Cell 1:3/4/8/9/13/14/18/19
Cell 2:8/9/13/14/18/19/3/4
Cell 3:13/14/18/19/3/4/8/9
S203, for each cell, base station determines first subframe according to subframe priority orders.
Subframe priority orders include sub-frame of uplink priority orders and downlink subframe priority orders.
S204, base station carry out semi-persistent resource distribution in first subframe, if in first subframe upper half static resource
It is allocated successfully, then terminates to distribute, otherwise successively postponing according to the subframe priority orders of cell to next subframe, it is quiet to carry out half
State resource allocation is until be allocated successfully；If successively all distribution failures in N number of subframe, terminate to distribute.
By the example above, by taking sub-frame of uplink priority orders as an example, when to first cell distribution semi-persistent resource, base station
Determine that first subframe is 3 according to the sub-frame of uplink priority orders 3/4/8/9/13/14/18/19 of cell 1, preferentially in subframe 3
Upper progress semi-persistent resource distribution, it is otherwise excellent according to subframe if terminating to distribute in the success of 3 upper half static resource allocation of subframe
First grade sequence, which successively postpones, carries out semi-persistent resource distribution until being allocated successfully to next subframe.If successively in N number of subframe
All distribution failures, then terminate to distribute.It is similar with uplink for the distribution method of downlink.
Fig. 3 is the structural schematic diagram of base station of the present invention, as shown in figure 3, the base station of the present embodiment may include: the first setting
Module 10, the second setup module 11 and processing module 12, wherein the first setup module 10 is used for pre- according to semi-static scheduling cycle
N number of subframe and subframe mark are first set, and N is the positive integer greater than 1.Second setup module 11 is used to be identified as base station according to subframe
Subframe priority orders are respectively set in interior each cell, and the subframe priority orders of neighboring community are different.Processing module 12
According to the subframe priority orders of setting, the voice user's equipment UE for being determined as each cell in N number of subframe distributes semi-static money
The subframe in source, and semi-persistent resource is distributed in determining subframe for UE.
Subframe is identified as number, and the second setup module 11 is used for: according to cell number, number of sub-frames N and neighboring community
The maximized principle of priority interval rank of first subframe is that subframe priority orders are respectively set in each cell.
Specifically, processing module 13 is used for: first subframe is determined according to the subframe priority orders of cell, at first
Semi-persistent resource distribution is carried out in subframe, if terminating to distribute, otherwise pressing in first subframe upper half static resource allocation success
It successively postpones to the progress semi-persistent resource distribution of next subframe according to the subframe priority orders of cell until being allocated successfully；If according to
Secondary all distribution failures in N number of subframe, then terminate to distribute.
The device of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 1, realization principle class
Seemingly, details are not described herein again.
Base station provided in this embodiment presets N number of subframe according to semi-static scheduling cycle by the first setup module
And subframe mark, the second setup module are identified as each cell according to subframe and subframe priority orders, the son of neighboring community are arranged
Frame priority orders are different, and processing module is determined as each cell according to the subframe priority orders of setting in N number of subframe
Voice UE distributes the subframe of semi-persistent resource, and distributes semi-persistent resource in determining subframe for UE, due to neighboring community's
Frame priority orders are different, and identical probability reduces the semi-persistent resource of neighbor cell allocation in the time domain, therefore can reduce by half
The probability of resource allocation conflict in static scheduling promotes voice quality to reduce co-channel interference caused by resource allocation conflict.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer readable storage medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned include: ROM, RAM, magnetic disk or
The various media that can store program code such as person's CD.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (4)
1. a kind of semi-persistent resource distribution method characterized by comprising
Base station presets N number of subframe according to semi-static scheduling cycle and subframe identifies, and N is the positive integer greater than 1；
The base station is identified as each cell in the base station according to the subframe and subframe priority orders is respectively set, adjacent
The subframe priority orders of cell are different, wherein the subframe is identified as number, and the base station is according to cell number, subframe
The maximized principle of priority interval rank of first subframe of number N and neighboring community is that subframe is respectively set is excellent for each cell
First grade sequence；
Or the subframe priority orders according to after PCI mould M result and pre-set corresponding relationship obtain each cell
Subframe priority orders；
The base station is determined as the voice user of each cell according to the subframe priority orders of setting in N number of subframe
Equipment UE distributes the subframe of semi-persistent resource, and is the UE distribution semi-persistent resource in determining subframe.
2. the method according to claim 1, wherein subframe priority orders of the base station according to setting,
It is determined as the subframe of voice user's equipment UE distribution semi-persistent resource of each cell in N number of subframe, and in determining son
It is the UE distribution semi-persistent resource on frame, comprising:
The base station determines first subframe according to the subframe priority orders of cell；
The base station carries out semi-persistent resource distribution in first subframe, if first subframe upper half static resource allocation at
Function then terminates to distribute, and otherwise successively postpones according to the subframe priority orders of cell and carries out semi-persistent resource to next subframe
Distribution is until be allocated successfully；
If successively all distribution failures in N number of subframe, terminate to distribute.
3. a kind of base station characterized by comprising
First setup module, for presetting N number of subframe and subframe mark according to semi-static scheduling cycle, N is just greater than 1
Integer；
Subframe priority is respectively set for being identified as each cell in the base station according to the subframe in second setup module
Sequentially, the subframe priority orders of neighboring community are different, wherein the subframe is identified as number, and the base station is according to cell
The maximized principle of priority interval rank of number, number of sub-frames N and first subframe of neighboring community is each cell difference
Subframe priority orders are set；
Or the subframe priority orders according to after PCI mould M result and pre-set corresponding relationship obtain each cell
Subframe priority orders；
Processing module is determined as the voice user of each cell according to the subframe priority orders of setting in N number of subframe
Equipment UE distributes the subframe of semi-persistent resource, and is the UE distribution semi-persistent resource in determining subframe.
4. base station according to claim 3, which is characterized in that the processing module is used for:
First subframe is determined according to the subframe priority orders of cell；
Semi-persistent resource distribution is carried out in first subframe, if tying in first subframe upper half static resource allocation success
Beam distribution, otherwise according to the subframe priority orders of cell successively postpone to next subframe carry out semi-persistent resource distribution until
It is allocated successfully；
If successively all distribution failures in N number of subframe, terminate to distribute.
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| JP6918124B2 (en) * | 2017-01-26 | 2021-08-11 | エルジー エレクトロニクス インコーポレイティド | Data communication execution method in wireless communication system and terminal using the above method |
| WO2019105389A1 (en) * | 2017-11-28 | 2019-06-06 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method for allocating a resource in a user equipment and user equipment |
| CN109963343B (en) * | 2017-12-26 | 2022-04-15 | 成都鼎桥通信技术有限公司 | Method and device for scheduling wireless resources |
| CN110891310B (en) * | 2018-09-07 | 2022-07-15 | 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 |
| CN111083745B (en) * | 2018-10-19 | 2022-06-07 | 成都鼎桥通信技术有限公司 | Scheduling method and device |
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