CN108347315A - Multi-subband business scheduling method in a kind of electric power wireless private network - Google Patents
Multi-subband business scheduling method in a kind of electric power wireless private network Download PDFInfo
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- CN108347315A CN108347315A CN201710052305.0A CN201710052305A CN108347315A CN 108347315 A CN108347315 A CN 108347315A CN 201710052305 A CN201710052305 A CN 201710052305A CN 108347315 A CN108347315 A CN 108347315A
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- business
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- active user
- band number
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
-
- 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
-
- 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
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
-
- 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
- H04W72/543—Allocation or scheduling criteria for wireless resources based on quality criteria based on requested quality, e.g. QoS
Abstract
The present invention provides multi-subband business scheduling methods in a kind of electric power wireless private network.Classification judgement is carried out to the business of active user, to there is the business of transmission rate request, it is determined as the idle sub-band number of active user's distribution according to present channel quality, to the business of not transmission rate request, it is determined as the idle sub-band number of active user's distribution according to the resource service condition and user capability of wireless communication system, for different type of service flexible utilization transfer resources, reduces data stacking, it avoids user from going offline, improves the efficiency of transmission of wireless communication system.
Description
Technical field
The present invention relates to field of communication technology, more particularly to multi-subband business scheduling method in a kind of electric power wireless private network.
Background technology
The practicable techniques scheme of current electric power wireless broadband transmission has TD-LTE230, TD- in field of communication technology
LTE1800, wherein TD-LTE230 be based on TD-LTD technologies, in conjunction with frequency spectrum perception, carrier wave polymerization, interference demodulation, software without
The advanced technologies such as line electricity create newly developed wireless communication system using power industry in 230MHz frequency range discrete spectrum resources.
The type of service supported for LTE230：Speech business, video traffic, spatial load forecasting business, data collection service
With distribution automation business etc..
In order to save control channel expense, use semi-persistent scheduling will be follow-up after that is, primary scheduling the scheduling of uplink and downlink
Temporal resource is fully allocated to a user and uses, until the uplink or downlink data transmission of this user are completed.On
Row data are transmitted to be realized by the UE methods for reporting BSR, wherein the BSR that instruction quantity is zero is called Ending BSR.When
When base station side continuously receives several Ending BSR according to type of service judgement, it is believed that the data transfer ends start next use
The scheduling at family.For different business, the number of Ending BSR is configured respectively, in general, setting data collection service to
5, video traffic is set as 10, these values are configurable.
Current multi-subband scheduling scheme is that transmission rate is fixed according to GBR (Guaranteed Bit Rate)
The mapping of subband sets sub-band number to list band, 4 subbands, 9 subbands, 39 subbands in the signing information of UE.
In the prior art, for the UE of multi-subband, ENB can be supported to dispatch UE using signing sub-band number, and one
The number of subband is not changed in secondary data transmission.
For spatial load forecasting business, data collection service and distribution automation business, these business do not transmit speed
The concept of rate, minimum tens bytes of data volume transmitted every time, most kilobytes or so.When a cell is carried out at the same time number
When more according to the UE numbers of transmission, if requiring to carry out resource allocation using the signing subband of UE, it is likely to occur not distributing
The case where resource, in this way, UE cannot may be dispatched for a long time, application layer may be initiated to retransmit, and lead to more data
Accumulation.More serious situation can cause UE to go offline, service fail.
For video and speech business, these business have GBR rate requirements.When channel conditions are good, Ke Yixuan
The modulation coding scheme of higher order is selected, the efficiency of transmission of subband increases, and can meet transmission demand using less subband, so
And in existing system, multi-subband UE can not be distributed according to channel quality dynamic adjustresources, be caused in primary transmission
The wasting of resources.
The problem of for above-mentioned business, the present invention provide multi-subband traffic scheduling side in a kind of electric power wireless private network
Method improves system efficiency of transmission so as to make full use of transfer resource, reduces data stacking, UE is avoided to go offline.
Invention content
The present invention provides multi-subband business scheduling methods in a kind of electric power wireless private network, can be flexibly sharp by this method
With transfer resource, data stacking is reduced, avoids user from going offline, improves the efficiency of transmission of wireless communication system.
The present invention provides multi-subband business scheduling methods in a kind of electric power wireless private network, which is characterized in that this method packet
Include following steps：
A00, judge that the current business of active user whether there is the requirement to transmission rate, if the current industry of active user
Business is then to execute a11 there are the first kind business of rate requirement；If the current business of active user is that there is no rate requirements
Second class business, then execute a21；
A11, judged to determine whether the wireless communication system can be received currently according to the transmittability of wireless communication system
First kind business otherwise execute a31 if so then execute a12；
A12, the idle sub-band number for being determined as active user's distribution according to present channel quality, then execute a13；
A13, judge whether currently there is continuous idle son identical with the idle sub-band number determined for first kind business
Otherwise band executes a31 if so then execute a32；
A21, the free time for being determined as active user's distribution according to the resource service condition and user capability of wireless communication system
Then sub-band number executes a22；
A22, judge whether currently there is continuous idle son identical with the idle sub-band number determined for the second class business
Otherwise band executes a23 if so then execute a32；
A23, judge whether the idle sub-band number determined for the second class business is preset sub-band number deep low gear, if then
A31 is executed, a24 is otherwise executed；
A24, the idle sub-band number determined for the second class business is turned down to one grade and is substituted into and turns down one grade of idle subband
Number returns to a22 and rejudges；
A31, flow is seized using sub-band resources as active user's allocated subbands, then terminate current process；
A32, the continuous idle subband that quantification is distributed for active user, then terminate current process.
Optionally, the idle sub-band number for being determined as active user's distribution according to present channel quality includes：According to guarantor
Card bit rate GBR and current modulation coding scheme are determined as the sub-band number of active user's distribution.
Optionally, the a21 according in currently available idle sub-band sum and the signing sub-band number of active user most
Small value is determined as the idle sub-band number of active user's distribution.
Optionally, the a21 is determined as the idle sub-band number of active user's distribution using following formula：
Wherein, S is the idle sub-band number distributed for active user, and Δ is to initiate industry within the second class business duration
The number of users of business transmission；Z is the idle sub-band number of the wireless communication system；N is the number of users for currently needing to distribute resource；Func
Function representation is rounded to downwards each gear sub-band number；A is the signing sub-band number of active user.
Optionally, the gear sub-band number includes 1,4,9,19,39.
Optionally, the wireless communication system is LTE230 systems.
Optionally, the first kind business includes video traffic, speech business.
Optionally, the second class business includes spatial load forecasting business, data collection service and distribution automation business.
Description of the drawings
Fig. 1 is the flow diagram of method in the specific embodiment of the invention.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, right in the following with reference to the drawings and specific embodiments
The present invention is described in detail.
In the specific embodiment of the invention, wireless communication system is the TD-LTE230 systems based on TD-LTE technologies, below
In conjunction with attached drawing, the present invention will be described in detail.
In the prior art, for spatial load forecasting business, data collection service and distribution automation business, using user's
When subband of contracting carries out resource allocation, in fact it could happen that the problem of resource can not be distributed, lead to data stacking；And for video and language
For sound business, in multi-subband user in primary transmission, it cannot be distributed according to channel quality adjustresources, be easy to cause resource
Waste.In view of the above-mentioned problems, the present invention provides a kind of method of multi-subband traffic scheduling in electric power wireless private network, pass through area
The type of separate service, and different traffic assignments sub-band resources are directed to, money when avoiding carrying out resource allocation using signing subband
Source wastes, and substantially increases the utilization rate of transfer resource, improves the efficiency of transmission of system.
1 the present invention will be described in detail below in conjunction with the accompanying drawings, wherein Fig. 1 is method in the specific embodiment of the invention
Flow diagram.
As shown in Figure 1, the present invention provides multi-subband business scheduling method in a kind of electric power wireless private network, this method includes
Following steps：
A00, judge that the current business of active user whether there is the requirement to transmission rate, if the current industry of active user
Business is then to execute a11 there are the first kind business of rate requirement；If the current business of active user is that there is no rate requirements
Second class business, then execute a21；
In a particular embodiment, the present invention wants the business that LTE230 systems can carry according to whether to transmission rate
It asks and is divided into two classes, wherein the current business of active user is first kind business there are transmission rate request, concretely video
Business, speech business；The current business of active user is the second class business there is no transmission rate request, concretely load
Control business, data collection service and distribution automation business.It is in the method first kind business and second by traffic differentiation
Class business is respectively adopted different methods and is allocated subband money for the transmission feature of first kind business and the second class business
Source.
A11, judged to determine whether the wireless communication system can be received currently according to the transmittability of wireless communication system
First kind business otherwise execute a31 if so then execute a12；
It when selecting suitable sub-band number, if modulation coding scheme changes to low order, is needed when according to modulation coding scheme
Want more subbands that could meet transmission requirement.In order to avoid enough subbands at this moment can not be distributed to user, in active user
Business when being first kind business, judge that the wireless communication system whether can according to the transmittability of wireless communication system first
Receive current first kind business.Specifically, all first kind business that statistics Current wireless communication system has been received, when new
Transmission energy of the transmission requirement of the first kind business of addition and all first kind business received in the wireless communication system
When within the scope of power, the wireless communication system is allowed to receive the first kind business.In such manner, it is possible to avoid Current wireless communication system
Transmittability cannot be satisfied caused by can not allocated subbands the phenomenon that.
When the transmittability of wireless communication system can receive the first kind business, a12 is entered step, and works as channel radio
When the transmittability of letter system can not receive the first kind business, needs to execute step a31, flow is seized using sub-band resources
For active user's allocated subbands, then terminate current process.
The business for being just off certain low priorities is seized, new business is received if seizing successfully.It is different types of
There is business different priority can seize the business of low priority if current business priority is higher, to ensure height
The transmission of priority service.
A12, the idle sub-band number for being determined as active user's distribution according to present channel quality, then execute a13；
For first kind business, need according to the idle sub-band number that present channel quality is active user's distribution.Specifically,
According to ensureing that bit rate GBR and current modulation coding scheme select suitable sub-band number, and with the signing subband of user
Number compares, and smaller value is then taken to carry out resource allocation.
A13, judge whether currently there is continuous idle son identical with the idle sub-band number determined for first kind business
Otherwise band executes a31 if so then execute a32；
When the idle sub-band number distributed for active user is determined according to step a12, then judge Current wireless communication system
Whether there is identical as the idle sub-band number determined for the first kind business and continuous idle subband in system.Only when this
Idle subband with continuous number in system, and the quantity of the number and the idle subband for first kind business determined.
A21, the free time for being determined as active user's distribution according to the resource service condition and user capability of wireless communication system
Then sub-band number executes a22；
When it is the second class business to determine the current business of active user, according to the resource service condition of wireless communication system
The idle sub-band number of active user's distribution is determined with user capability.For the second class business of not transmission rate request, it is not
Signing sub-band number must be used to be transmitted, but by analyzing available idle sub-band sum in Current wireless communication system,
The idle sub-band number that active user's distribution is determined with minimum value in the signing sub-band number of active user, in such manner, it is possible to make full use of
Sub-band resources in the system select optimal suitable sub-band resources to be allocated for user.
A22, judge whether currently there is continuous idle son identical with the idle sub-band number determined for the second class business
Otherwise band executes a23 if so then execute a32；
After the idle sub-band number for the second class traffic assignments is determined, it is also necessary to judge whether have in current system
Identical quantity and continuous idle sub-band number execute step when having identical quantity and continuous free time sub-band number in the system
Rapid a32 distributes the continuous idle subband of quantification for active user, then terminates current process.When there is no phase in the system
When with quantity and continuous idle sub-band number, step a23 is executed.
A23, judge whether the idle sub-band number determined for the second class business is preset sub-band number deep low gear, if then
A31 is executed, a24 is otherwise executed；
For there is no the identical quantity of idle sub-band number for the second class traffic assignments and continuous idle son in the system
When band, it is also necessary to judge whether the idle sub-band number determined for the second class business is preset sub-band number deep low gear, preset
Sub-band number deep low gear be whether the free time sub-band number is 1, if 1, then using sub-band resources seize flow be active user
Then allocated subbands terminate current process；If not 1, then follow the steps a24.
A24, the idle sub-band number determined for the second class business is turned down to one grade and is substituted into and turns down one grade of idle subband
Number returns to a22 and rejudges；
When the idle sub-band number determined for the second class business is not deep low gear 1, the second class business will be directed to and determined
Idle sub-band number turn down one grade and substituted into turn down one grade of idle sub-band number and put back to step a22 and rejudge.
A31, flow is seized using sub-band resources as active user's allocated subbands, then terminate current process；
A32, the continuous idle subband that quantification is distributed for active user, then terminate current process.
In above-mentioned steps a21, according in currently available idle sub-band sum and the signing sub-band number of active user
Minimum value is determined as the idle sub-band number of active user's distribution.Specifically, it is determined as active user's distribution using following formula
Idle sub-band number：
Wherein, S is the idle sub-band number distributed for active user, and Δ is to initiate industry within the second class business duration
The number of users of business transmission；Z is the idle sub-band number of the wireless communication system；N is the number of users for currently needing to distribute resource；Func
Function representation is rounded to downwards each gear sub-band number；A is the signing sub-band number of active user.
In a particular embodiment, each gear sub-band number includes 1,4,9,19,39.Wherein, it is 1 that lowest gear, which is sub-band number,.
In a particular embodiment, as shown in Figure 1, utilizing multi-subband traffic scheduling in electric power wireless private network provided by the invention
Method.
First determine whether the current business of active user requires transmission rate, when the business wants transmission rate
When asking, further judge whether the wireless communication system can receive whether the user, the i.e. transmittability of the system can expire
Foot receives the user again.If the user can not be accepted for the system, it is directly entered and seizes flow, stream is seized using sub-band resources
Journey is active user's allocated subbands；If the system can receive the user, according to guarantee bit rate GBR and current tune
Coding mode processed is calculated as the sub-band number L of active user's distribution.Then, judge whether there is continuous L idle son in the system
Band can distribute to active user, when that can be distributed for it, then be allocated successfully, and terminate active user's distribution.When cannot distribute
When, then enter and seizes flow.
When the business does not require transmission rate, according to the resource service condition and user capability of wireless communication system
It is determined as the idle sub-band number S of active user's distribution, judges whether there be continuous S idle subband in the system, if with S
Continuous free time subband will be then active user's allocated subbands resource, and complete distribution；If there is no S continuous skies in the system
Not busy subband then also needs to judge whether the S is deep low gear sub-band number 1, enters if fruit is and seizes flow, if it is not, then by the S
By for low one grade of sub-band number, then judge the sub-band number for whether having after reducing by one grade in the system, so repeat above-mentioned process,
Until for active user's success allocated subbands resource or into flow is seized, it is active user to seize flow using sub-band resources
Allocated subbands.
The method provided through the invention carries out classification judgement, for different types of service to the business of active user
Flexible utilization transfer resource reduces data stacking, avoids user from going offline, improve the efficiency of transmission of wireless communication system.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent substitution, improvement and etc. done should be included within the scope of protection of the invention god.
Claims (8)
1. multi-subband business scheduling method in a kind of electric power wireless private network, which is characterized in that this method comprises the following steps：
A00, judge that the current business of active user whether there is the requirement to transmission rate, if the current business of active user is
There are the first kind business of rate requirement, then execute a11；If the current business of active user is that there is no the second of rate requirement
Class business, then execute a21；
A11, judge to determine whether the wireless communication system can receive current the according to the transmittability of wireless communication system
Otherwise a kind of business executes a31 if so then execute a12；
A12, the idle sub-band number for being determined as active user's distribution according to present channel quality, then execute a13；
A13, judge whether currently there is continuous idle subband identical with the idle sub-band number determined for first kind business, if
It is to execute a32, otherwise executes a31；
A21, the idle subband for being determined as active user's distribution according to the resource service condition and user capability of wireless communication system
Number, then executes a22；
A22, judge whether currently there is continuous idle subband identical with the idle sub-band number determined for the second class business, if
It is to execute a32, otherwise executes a23；
A23, judge whether the idle sub-band number determined for the second class business is preset sub-band number deep low gear, if so then execute
Otherwise a31 executes a24；
A24, the idle sub-band number determined for the second class business is turned down to one grade and is substituted into and turns down one grade of idle sub-band number and returns
A22 is returned to rejudge；
A31, flow is seized using sub-band resources as active user's allocated subbands, then terminate current process；
A32, the continuous idle subband that quantification is distributed for active user, then terminate current process.
2. according to the method described in claim 1, it is characterized in that, described be determined as active user point according to present channel quality
The idle sub-band number matched includes：It is determined as active user's distribution according to guarantee bit rate GBR and current modulation coding scheme
Sub-band number.
3. according to the method described in claim 1, it is characterized in that, the a21 according to currently available idle sub-band sum and
Minimum value in the signing sub-band number of active user is determined as the idle sub-band number of active user's distribution.
4. according to the method described in claim 3, it is characterized in that, the a21 is determined as active user point using following formula
The idle sub-band number matched：
Wherein, S is the idle sub-band number distributed for active user, and Δ is to initiate business within the second class business duration to pass
Defeated number of users；Z is the idle sub-band number of the wireless communication system；N is the number of users for currently needing to distribute resource；Func functions
Expression is rounded to downwards each gear sub-band number；A is the signing sub-band number of active user.
5. according to the method described in claim 4, it is characterized in that, the gear sub-band number includes 1,4,9,19,39.
6. according to the method described in claim 1, it is characterized in that, the wireless communication system is LTE230 systems.
7. according to the method described in claim 1, it is characterized in that, the first kind business includes video traffic, speech business.
8. according to the method described in claim 1, it is characterized in that, the second class business includes spatial load forecasting business, data
Capturing service and distribution automation business.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710052305.0A CN108347315B (en) | 2017-01-22 | 2017-01-22 | Multi-sub-band service scheduling method in electric power wireless private network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710052305.0A CN108347315B (en) | 2017-01-22 | 2017-01-22 | Multi-sub-band service scheduling method in electric power wireless private network |
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| CN108347315B CN108347315B (en) | 2020-11-27 |
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| CN111511021A (en) * | 2019-01-31 | 2020-08-07 | 普天信息技术有限公司 | Resident sub-band switching method and device |
| CN112118570A (en) * | 2020-08-11 | 2020-12-22 | 国网浙江省电力有限公司 | Scheme for bearing control service in electric power wireless private network system |
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| CN108347315B (en) | 2020-11-27 |
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