CN109982380A - A kind of transmission mode selection method in electric power wireless communication system - Google Patents
A kind of transmission mode selection method in electric power wireless communication system Download PDFInfo
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- CN109982380A CN109982380A CN201910264002.4A CN201910264002A CN109982380A CN 109982380 A CN109982380 A CN 109982380A CN 201910264002 A CN201910264002 A CN 201910264002A CN 109982380 A CN109982380 A CN 109982380A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 117
- 238000010187 selection method Methods 0.000 title claims abstract description 17
- 238000004891 communication Methods 0.000 title claims abstract description 16
- 230000009365 direct transmission Effects 0.000 claims abstract description 19
- 238000013475 authorization Methods 0.000 claims abstract description 13
- 230000007480 spreading Effects 0.000 claims abstract description 10
- 238000003892 spreading Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 11
- 238000012790 confirmation Methods 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0278—Traffic management, e.g. flow control or congestion control using buffer status reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/04—Error control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
- H04W28/14—Flow control between communication endpoints using intermediate storage
-
- 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
Abstract
The invention discloses a kind of transmission mode selection methods in electric power wireless communication system, comprising: which terminal is when carrying out exempting from scheduled transmission, if data cached data volume is less than or equal to data-quantity threshold, then terminal selects direct transmission mode, terminal directly is extended to obtain data packet using sequence spreading to data cached, and data packet is sent on exempting from scheduling transmission resources；If data cached data volume is greater than data-quantity threshold, terminal selects BSR transmission mode, generates BSR according to data cached data volume, is extended to obtain data packet to BSR using sequence spreading, and send data packet on exempting from scheduling transmission resources；Base station receives and the data packet that sends on exempting from scheduling transmission resources of decoding terminal, if data packet only include it is data cached, response message is fed back to terminal, if data packet includes BSR, according to BSR to terminal feeding back uplink authorization.The present invention can satisfy the transmission demand of different size data packet.
Description
Technical field
The present invention relates to wireless communication technology fields, more particularly to the transmission mode in a kind of electric power wireless communication system
Selection method.
Background technique
In traditional electric power wireless communication system, the uplink process based on scheduling is generallyd use.User equipment is first
Scheduling request first is sent to base station, for for new data transfer request ascending resource.After receiving scheduling request, base station is learnt
User has data to need to transmit, but base station has no knowledge about the data bulk in user cache at this time.Therefore, base station will be anti-to user
A uplink authorization is presented, that is, distributes to a certain number of ascending resources of user.User will use this uplink authorization to send out to base station
Buffer status report (Buffer Status Report, BSR) is sent, is needed in the uplink caching for providing user to serving BS
The data bulk to be transmitted.Based on the information in buffer status report, base station can distribute sufficient amount of uplink money for user
Source allows users to send the data in caching.The above-mentioned uplink process based on scheduling can bring biggish data to pass
Defeated time delay is unable to satisfy the higher business demand of delay requirement.
In order to avoid delay problem caused by the uplink process based on scheduling, exempts from scheduled transmission mechanism and obtained extensively
Concern and research.Exempt from scheduled transmission to realize, base station needs periodic ascending resource being pre-assigned to user.And in order to
The waste of resource is reduced, the same ascending resource would generally be pre-assigned to multiple users.When the upstream data of some user arrives
Up to when, the user can be used predistribution resource send data.But if multiple users send number in the same resource just
According to then collision problem will be generated.When the conflict occurs, it if the data of user's transmission can not be successfully decoded out in base station, just needs
Re-transmission is executed, this exempts from the time delay of scheduled transmission by dramatically increasing.
In order to alleviate above-mentioned collision problem, terminal expands data when scheduled transmission is exempted from execution, using orthogonal code
Exhibition.If multiple terminals of simultaneous transmission have used different sequence spreadings, base station is just capable of detecting when that multiple terminals pass
Defeated data.But data are extended and also imply that terminal sends the occupied running time-frequency resource of data and will dramatically increase.Such as
Fruit data packet is larger, then terminal exempts to be unable to complete data transmission in scheduling transmission resources in a cycle, needs to wait
It is subsequent to exempt from scheduling transmission resources or initiate the uplink based on scheduling, to cause compared with long time delay.It is suitable therefore, it is necessary to design
Exempt from scheduled transmission mode and flexible transmission mode selection method for big data packet, there are different size of data to meet
The transmission demand of packet.
Summary of the invention
The invention mainly solves the technical problem of providing the transmission mode selection sides in a kind of electric power wireless communication system
Method can satisfy the transmission demand of different size data packet.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of electric power wireless communication system is provided
Transmission mode selection method in system, comprising: setting data-quantity threshold；Terminal is when carrying out exempting from scheduled transmission, if caching number
According to data volume be less than or equal to data-quantity threshold, then terminal selects direct transmission mode, if data cached data volume is greater than
Data-quantity threshold, then terminal selects buffer status report BSR transmission mode；Under direct transmission mode, terminal directly utilizes expansion
Exhibition sequence is extended to obtain data packet to data cached, and data packet is sent on exempting from scheduling transmission resources；In BSR transmission mould
Under formula, terminal generates BSR according to data cached data volume, is extended to obtain data packet to BSR using sequence spreading, and
Exempt to send data packet on scheduling transmission resources；The data packet that base station receives and decoding terminal is sent on exempting from scheduling transmission resources,
If the data packet only include it is data cached, to terminal feed back response message, if the data packet include BSR, root
According to the BSR to terminal feeding back uplink authorization, so that terminal is data cached using uplink authorization transmission.
Preferably, the step of setting data-quantity threshold further include: setting propagation delay time threshold value；If the caching number
According to data volume be less than or equal to data-quantity threshold, then terminal select direct transmission mode the step of specifically: if data cached
Data volume be less than or equal to data-quantity threshold or data cached propagation delay time and be more than or equal to propagation delay time threshold value, then terminal is selected
Select direct transmission mode；If the data cached data volume is greater than data-quantity threshold, terminal selects BSR transmission mode
Step specifically: if data cached propagation delay time is less than propagation delay time threshold value and data cached data volume is greater than data
Threshold value is measured, then terminal selects BSR transmission mode.
Preferably, it under direct transmission mode, before the step of sending data packet on exempting from scheduling transmission resources, also wraps
It includes: if the data volume of the data packet after extension, which is greater than, currently exempts from the maximum amount of data that scheduling transmission resources can carry, eventually
End is segmented data packet；It is described on exempting from scheduling transmission resources send data packet the step of specifically: exempt to dispatch currently
Transmitting portion data segment on transfer resource exempts to send remaining data section on scheduling transmission resources subsequent.
It is preferably, described the step of sending data packet on exempting from scheduling transmission resources under BSR transmission mode further include:
If the data volume of the data packet after extension, which is less than, currently exempts from the maximum amount of data that scheduling transmission resources can carry, terminal exists
It is remaining that exempt from transmitting portion on scheduling transmission resources data cached.
Preferably, the response message includes confirmation response message and negative response information, base station decoded packet data just
When true, to terminal feedback acknowledgment response message, when base station data packet decoding error, negative response information is fed back to terminal.
Preferably, the data-quantity threshold and propagation delay time threshold value are that terminal is arranged by terminal self-setting or base station.
It is in contrast to the prior art, the beneficial effects of the present invention are: passing through data cached data volume or caching
The data volume and propagation delay time of data select direct transmission mode or BSR transmission mode, and less is data cached using direct
Data transmission can be rapidly completed in transmission mode on exempting from scheduling transmission resources；And more data cached use BSR transmission mould
Formula, by sending BSR on exempting from scheduling transmission resources, the data cached data volume of signals base enables base station to feed back enough
Big uplink authorization sent by terminal it is data cached, so as to meet the transmission demand of different size data packet, Ke Yiti
High-transmission efficiency and service quality.
Detailed description of the invention
Fig. 1 is the process signal of the transmission mode selection method in the electric power wireless communication system of one embodiment of the invention
Figure.
Fig. 2 is the process signal of the transmission mode selection method in the electric power wireless communication system of another embodiment of the present invention
Figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiments are merely a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Refering to fig. 1, be one embodiment of the invention electric power wireless communication system in transmission mode selection method process
Schematic diagram.Transmission mode selection method in the electric power wireless communication system of the embodiment of the present invention includes:
S11: setting data-quantity threshold.
Wherein, data-quantity threshold can be terminal setting by terminal self-setting or base station.
S12: terminal is when carrying out exempting from scheduled transmission, if data cached data volume is less than or equal to data-quantity threshold,
Terminal selects direct transmission mode, if data cached data volume is greater than data-quantity threshold, terminal selects buffer status report
Accuse BSR transmission mode.
S13: under direct transmission mode, terminal directly is extended to obtain data using sequence spreading to data cached
Packet, and data packet is sent on exempting from scheduling transmission resources；Under BSR transmission mode, terminal is raw according to data cached data volume
At BSR, BSR is extended using sequence spreading to obtain data packet, and send data packet on exempting from scheduling transmission resources.
In the present embodiment, under direct transmission mode, before the step of sending data packet on exempting from scheduling transmission resources,
Further include: if the data volume of the data packet after extension, which is greater than, currently exempts from the maximum amount of data that scheduling transmission resources can carry,
Then terminal log is segmented according to packet；
In the step of sending data packet on exempting from scheduling transmission resources specifically:
Exempt from transmitting portion data segment on scheduling transmission resources currently, exempts to send remainder on scheduling transmission resources subsequent
According to section.
For example, data packet can be divided into two sections, size is respectively R2 and R1-R2.Size is that the data segment of R2 exempts to adjust currently
It is sent on degree transfer resource, and the data segment that remaining size is R1-R2 exempts to send on scheduling transmission resources subsequent.
Under BSR transmission mode, in the step of sending data packet on exempting from scheduling transmission resources further include:
If the data volume of the data packet after extension, which is less than, currently exempts from the maximum amount of data that scheduling transmission resources can carry,
Then to exempt from transmitting portion on scheduling transmission resources data cached remaining for terminal.
Assuming that the data volume of the data packet after extension is R3, currently exempt from the maximum amount of data that scheduling transmission resources can carry
For R2, that is, have it is remaining exempt from scheduling transmission resources R2-R3, then terminal can exempt from scheduled transmission using remaining after sending BSR
Resource transmitting portion is data cached.
S14: the data packet that base station receives and decoding terminal is sent on exempting from scheduling transmission resources, if data packet only includes
It is data cached, then response message is fed back to terminal, if data packet includes BSR, according to BSR to terminal feeding back uplink authorization,
So that terminal is data cached using uplink authorization transmission.
Wherein, response message includes confirmation response message and negative response information, base station when decoded packet data is correct, to
Terminal feedback acknowledgment response message when base station data packet decoding error, feeds back negative response information to terminal.
If it is data cached that terminal has had sent part when sending BSR, sent in this step using uplink authorization
It is remaining data cached.
Referring to Fig.2, being the stream of the transmission mode selection method in the electric power wireless communication system of another embodiment of the present invention
Journey schematic diagram.The difference of the transmission mode selection method of the present embodiment and previous embodiment is that the present embodiment is directly passed in selection
When defeated mode or BSR transmission mode, referring also to data cached propagation delay time.Data cached propagation delay time refers to caching number
According to the maximum time limitation completed required by sending.Transmission mode selection in the electric power wireless communication system of the embodiment of the present invention
Method includes:
S21: setting data-quantity threshold and propagation delay time threshold value.
S22: terminal when carrying out exempting from scheduled transmission, if data cached data volume be less than or equal to data-quantity threshold or
Data cached propagation delay time is more than or equal to propagation delay time threshold value, then terminal selects direct transmission mode；If data cached
Propagation delay time is less than propagation delay time threshold value and data cached data volume is greater than data-quantity threshold, then terminal selects BSR transmission
Mode.
S13: under direct transmission mode, terminal directly is extended to obtain data using sequence spreading to data cached
Packet, and data packet is sent on exempting from scheduling transmission resources；Under BSR transmission mode, terminal is raw according to data cached data volume
At BSR, BSR is extended using sequence spreading to obtain data packet, and send data packet on exempting from scheduling transmission resources.
S14: the data packet that base station receives and decoding terminal is sent on exempting from scheduling transmission resources, if the data packet is only
Comprising data cached, then response message is fed back to terminal, it is anti-to terminal according to the BSR if the data packet includes BSR
Uplink authorization is presented, so that terminal is data cached using uplink authorization transmission.
By the above-mentioned means, the transmission mode selection method in the electric power wireless communication system of the embodiment of the present invention is by delaying
The data volume of deposit data or data cached data volume and propagation delay time select direct transmission mode or BSR transmission mode,
Less is data cached using direct transmission mode, and data transmission can be rapidly completed on exempting from scheduling transmission resources；And it is more
It is data cached use BSR transmission mode, by sending BSR, the data cached number of signals base on exempting from scheduling transmission resources
According to amount, enable base station feed back sufficiently large uplink authorization and sent by terminal it is data cached, so as to meet different size
The transmission demand of data packet, can be improved efficiency of transmission and service quality.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (6)
1. a kind of transmission mode selection method in electric power wireless communication system characterized by comprising
Data-quantity threshold is set；
Terminal is when carrying out exempting from scheduled transmission, if data cached data volume is less than or equal to data-quantity threshold, terminal selection
Direct transmission mode, if data cached data volume is greater than data-quantity threshold, terminal selects buffer status report BSR transmission
Mode；
Under direct transmission mode, terminal directly is extended to obtain data packet using sequence spreading to data cached, and is exempting from
Data packet is sent on scheduling transmission resources；Under BSR transmission mode, terminal generates BSR according to data cached data volume, utilizes
Sequence spreading is extended BSR to obtain data packet, and data packet is sent on exempting from scheduling transmission resources；
The data packet that base station receives and decoding terminal is sent on exempting from scheduling transmission resources, if the data packet only includes caching
Data then feed back response message to terminal, if the data packet includes BSR, are awarded according to the BSR to terminal feeding back uplink
Power, so that terminal is data cached using uplink authorization transmission.
2. transmission mode selection method according to claim 1, which is characterized in that the step of the setting data-quantity threshold
Further include: setting propagation delay time threshold value；
If the step of data cached data volume is less than or equal to data-quantity threshold, and terminal selects direct transmission mode has
Body are as follows: if data cached data volume is less than or equal to data-quantity threshold or data cached propagation delay time is more than or equal to transmission
Delay threshold, then terminal selects direct transmission mode；
The step of if the data cached data volume is greater than data-quantity threshold, and terminal selects BSR transmission mode specifically:
If data cached propagation delay time is less than propagation delay time threshold value and data cached data volume is greater than data-quantity threshold, eventually
End selection BSR transmission mode.
3. transmission mode selection method according to claim 1 or 2, which is characterized in that under direct transmission mode, exempting from
Before the step of sending data packet on scheduling transmission resources, further includes:
If the data volume of the data packet after extension, which is greater than, currently exempts from the maximum amount of data that scheduling transmission resources can carry, eventually
End is segmented data packet；
It is described on exempting from scheduling transmission resources send data packet the step of specifically:
Exempt from transmitting portion data segment on scheduling transmission resources currently, exempts to send remaining data on scheduling transmission resources subsequent
Section.
4. transmission mode selection method according to claim 1 or 2, which is characterized in that described under BSR transmission mode
In the step of sending data packet on exempting from scheduling transmission resources further include:
If the data volume of the data packet after extension, which is less than, currently exempts from the maximum amount of data that scheduling transmission resources can carry, eventually
To exempt from transmitting portion on scheduling transmission resources data cached remaining at end.
5. according to claim 1 exempt from scheduled transmission method, which is characterized in that the response message includes confirmation response letter
Breath and negative response information, base station is when decoded packet data is correct, to terminal feedback acknowledgment response message, the decoding of base station data packet
When mistake, negative response information is fed back to terminal.
6. according to claim 2 exempt from scheduled transmission method, which is characterized in that the data-quantity threshold and propagation delay time threshold
Value is terminal setting by terminal self-setting or base station.
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021027860A1 (en) * | 2019-08-13 | 2021-02-18 | 中兴通讯股份有限公司 | Routing method, bsr generation method, apparatus, and storage medium |
| CN113347729A (en) * | 2020-02-18 | 2021-09-03 | 上海朗帛通信技术有限公司 | Method and arrangement in a communication node used for wireless communication |
| GB2620552A (en) * | 2022-06-29 | 2024-01-17 | Nec Corp | Communication system |
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