CN103179671A - Method and device for relay scheduling of wireless communication - Google Patents
Method and device for relay scheduling of wireless communication Download PDFInfo
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- CN103179671A CN103179671A CN2011102136002A CN201110213600A CN103179671A CN 103179671 A CN103179671 A CN 103179671A CN 2011102136002 A CN2011102136002 A CN 2011102136002A CN 201110213600 A CN201110213600 A CN 201110213600A CN 103179671 A CN103179671 A CN 103179671A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention relates to a method and device for relay scheduling of wireless communication. An embodiment of the method includes that a main station distributes unique identification to an slave station administered by the main station; the main station conducts resource authorization on the slave station through a control channel with the unique identification as a mark; the auxiliary station monitors the control channel, after scheduling authorization is received, available resources indicated by the current latest authorization are used as a resource pool, and resource scheduling is conducted for administered users. By the method and device of the embodiments, cell covering radius expansion can be achieved easily, the problem that terminal power is limited is solved, and edge user rate is improved.
Description
Technical field
The present invention relates to the wireless relay transmission technology in radio communication, particularly a kind of relay scheduling method and apparatus of radio communication.
Background technology
at present, the 4th third-generation mobile communication all is based on OFDM (Orthogonal frequency-division multiplexing basically, OFDM) communication system of technology, OFDM is developed by multi-carrier modulation, the OFDM technology is one of implementation of multi-carrier transmission scheme, it is the present known the highest a kind of Multicarrier Transmission Technology of spectrum efficiency, its modulation and demodulation are respectively based on IFFT (Inverse Fast Fourier transform, inverse fast fourier transform) and FFT (Fast Fourier transform, fast fourier transform) realize, that implementation complexity is minimum, most widely used a kind of multi-carrier transmission scheme.Ofdm system has relatively totally simply solved the problem of multipath channel, in addition, the ability of its anti-multipath fading is strong, spectrum efficiency is high, OFDM is some subchannels with channel distribution, and flat fading can be thought in every sub-channels inside, and the code-element period of OFDM sub data flow is much larger than the code-element period of original data stream, anti-multipath channel delay diffusing capacity improves greatly, especially is fit to the urban area of multipath serious interference.But also there are some problems in ofdm system, networking problem when wherein more typical problem is exactly many residential quarters, more typical networking mode is the edge inter-frequency networking of neighbor cell at present, the central area is identical networking, as shown in Figure 1, the edge of residential quarter A, B and C only can use component frequency, and can not overlap, edge as residential quarter A can use F1, the edge of residential quarter B only can use F3, and the edge of residential quarter C only can use F2, but F1, F2, F3 can be used in the central area of all residential quarters, the raising availability of frequency spectrum that like this can be larger.yet, although this networking mode has solved the problem of co-channel interference, but the power limited that does not but solve the edge customer terminal causes the Cell Edge User bad channel conditions, the problem that speed is not high, the fundamental way that addresses this problem is exactly to reduce the transmission range that terminal transmits, reduce the loss of its signal, based on this, we have proposed a kind of radio relay method, the method can solve the not high problem of edge throughput, greatly improve peripheral speed, simultaneously, reduction due to the transmitting power of edge customer, the interference of minizone also can improve greatly.
Summary of the invention
The embodiment of the present invention provides a kind of relay scheduling method and apparatus of basic radio communication, is used for carrying out the residential quarter and covers extension, and promote edge customer speed, reduces presence of intercell interference; By this method and the device, throughput of system will have very large lifting, the inter-system interference level will have greatly improved.
The relay scheduling method of a kind of radio communication that the embodiment of the present invention provides, the method comprises:
Main website distributes unique identification to its jurisdiction slave station;
Main website is by control channel, carries out resource authorization as mark to slave station take the unique identification of slave station;
Slave station monitoring control channel, and after receiving scheduling authorization as resource pool, carries out scheduling of resource to its jurisdiction user with the available resources of current latest authorization indication;
Wherein, master station and follow station all possesses directly and end side is carried out the ability of radio communication, and all possesses the radio frequency transmit and receive ability;
Wherein, control channel both can be dispatched slave station, also can dispatch domestic consumer's terminal;
Better, described main website launches mandate to slave station by wireless mode;
A kind of radio communication relaying main website that the embodiment of the present invention provides is characterized in that, this device comprises:
Scheduler module: be used for scheduling station and have regional user terminal under its command, and be descending slave station scheduling Radio Resource;
Receiver module: receive the data of the user terminal of slave station forwarding, and receive the data message that main website has regional user terminal under its command;
Transmitter module: the emission main website has the data of regional user terminal under its command, and emission has the downlink data of the user terminal that slave station has under its command under its command;
A kind of radio communication relaying slave station that the embodiment of the present invention provides is characterized in that, this device comprises:
Scheduler module: be used for to receive the authorization message from main website, and with the scheduling resource of the current main website of receiving, as resource pool, the user terminal that scheduler has under its command;
Receiver module upwards: receive data and control signal that main website is handed down to the user terminal that this slave station has under its command, and receive main website to the control signal of this slave station;
Downward receiver module: receive the uploading data that has user terminal under its command;
Transmitter module makes progress: transfer has the uploading data of user terminal under its command;
Downward transmitter module: the transfer main website is transmitted to the data that slave station has user terminal under its command;
Description of drawings
Fig. 1 is that traditional networking frequency is distributed schematic diagram;
Fig. 2 is a kind of radio communication relay scheduling of embodiment of the present invention process schematic diagram;
Fig. 3 is a kind of radio communication relay scheduling of embodiment of the present invention schematic network structure;
Fig. 4 is a kind of radio communication relay scheduling of embodiment of the present invention main website structural representation;
Fig. 5 is a kind of radio communication relay scheduling of embodiment of the present invention slave station structural representation;
Embodiment
The relay scheduling method of radio communication in the embodiment of the present invention, main website distributes unique identification to its jurisdiction slave station; Main website is by control channel, carries out resource authorization as mark to slave station take the unique identification of slave station; Slave station monitoring control channel, and after receiving scheduling authorization as resource pool, carries out scheduling of resource to its jurisdiction user with the available resources of current latest authorization indication; The method is used for carrying out the residential quarter and covers extension, and promotes edge customer speed, reduces presence of intercell interference; By this method and the device, throughput of system will have very large lifting, the inter-system interference level will have greatly improved;
Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.
As shown in Figure 2, a kind of radio communication relay scheduling of embodiment of the present invention process comprises:
Step 10: main website distributes unique identification to its jurisdiction slave station; This sign can for the unique identification of user terminal isostructure or similar structures, it can be also the special field indication in control channel, for example, use 16 the identification code RNTIs identical with user terminal (Radio Network Transaction Identifier, wireless network transmissions sign);
Step 20: main website is by control channel, carries out resource authorization as mark to slave station take the unique identification of slave station; In this step, the scheduling of main website comes scheduling resource with slave station as a user terminal, but whether the dispatching priority of slave station will exist interim data, slave station buffer memory occupation proportion, slave station implicit precedence level, slave station to have user terminal implicit precedence level under its command according to slave station, slave station has user terminal bearer service priority under its command and calculates.The dispatching priority of slave station will be queued up together with the dispatching priority that main website has user terminal under its command, the unified distribution resource;
Step 30: slave station monitoring control channel, and after receiving scheduling authorization, as resource pool, carry out scheduling of resource to its jurisdiction user with the available resources of current latest authorization indication; The user terminal that it has under its command is only dispatched in the slave station scheduling.The transfer mode of slave station customer service can be by following several:
Transparent forwarding: only dispatch a user in transmission cycle of slave station, this moment, slave station only amplified the downlink data of main website to having user terminal under its command, simultaneously also only amplify slave station and have the user terminal upstream data under its command to main website, further do not resolve, in inferior process, slave station is only as transparent forwarding, data not being done further decoding processes, certainly, in order to improve transmission quality, slave station can be done the processing of certain inhibition noise.
Resolve and forward: slave station once can be dispatched some users, at this moment, slave station will be the Data Analysis of main website, and be cached in the buffer memory of slave station self, then it is had under its command user terminal and dispatch, for its upstream data that has user terminal under its command, slave station also can be resolved, data also can be stored in its buffer memory, then according to the mandate of main website to slave station, are uploaded to main website.Under this mode, main website is more relatively stable to the resource requirement of slave station, not traffic affecting time-delay.
Need to prove, the master station and follow station in the present invention all possesses directly and end side is carried out the ability of radio communication, and all possesses the radio frequency transmit and receive ability;
And control channel both can be dispatched slave station, also can dispatch domestic consumer's terminal;
In addition, the status of slave station is not what fix, and a slave station also can be used as main website, further has some slave stations under its command.
As shown in Figure 3, the networking structure of a kind of radio communication relay scheduling of the embodiment of the present invention is comprised of base station 10, base station 20, base station 30, base station 40 and some user terminals; In figure, base station 10 is as main website, base station 20 and base station 30 are as the slave station of base station A, base station 40 is as the slave station of base station 30, and base station 10,20,30,40 all promising user terminal the ability of wireless access service directly is provided, and described base station all can directly have some user terminals under its command.In this case, can realize the expansion of coverage radius of cell by continuous increase slave station number, also very useful in application scenes, such as subway covering, highway covering etc.;
As shown in Figure 4, a kind of radio communication relay scheduling of embodiment of the present invention main website structure comprises scheduler module 110, receiver module 120, transmitter module 130:
Scheduler module 110: be used for scheduling station and have regional user terminal under its command, and be descending slave station scheduling Radio Resource, scheduler module is served respectively two parts user, a part is domestic consumer's terminal, another part is slave station, the Radio Resource of their sharing base, the scheduler module of base station is distributed the non-target terminal user of these resources or slave station by dynamic dispatching;
Receiver module 120: receive the data of the user terminal of slave station forwarding, and receive the data message that main website has regional user terminal under its command.When receiving the slave station data, two kinds of receive modes can be arranged, when slave station is transparent forwarding, main website directly separates the packet of a certain user terminal of slave station transparent forwarding, when slave station is when resolving forward mode, can comprise the data of a plurality of user terminals in the packet of slave station, main website need to disassemble the Frame of slave station, and it has the data of user terminal under its command to obtain each;
transmitter module 130: launch the data that main website has regional user terminal under its command, and emission has the downlink data of the user terminal that slave station has under its command under its command, during emission slave station data, two kinds of receive modes can be arranged, when slave station is transparent forwarding, main website directly issues slave station, and it has the packet of user terminal under its command, slave station does not participate in resolving, when slave station is resolved forward mode, can comprise in the packet of main website that a plurality of slave stations have the packet of user terminal under its command, slave station need to be disassembled the Frame of slave station, it has the data of user terminal under its command to obtain each, then dispatch,
As shown in Figure 5, a kind of radio communication relay scheduling of the embodiment of the present invention comprises from station structure: scheduler module 210, upwards receiver module 220, downwards receiver module 230, upwards launch 240, launch 250 downwards:
Scheduler module 210: be used for receiving the authorization message from main website, and with the scheduling resource of the current main website of receiving, as resource pool, the user terminal that scheduler has under its command, the responsibility of this module namely can be summarized as the mandate that receives main website, then give with this authorized appropriation the user terminal that has under its command, multistage during from station structure when existing, a slave station can be dispatched the slave station that it has under its command, at this moment, on hierarchical relationship, slave station has just become it and has had the main website of slave station under its command;
Receiver module 220 upwards: receive data and control signal that main website is handed down to the user terminal that this slave station has under its command, and receive main website to the control signal of this slave station, when slave station works in the transparent forwarding pattern, this module transparent transmission, when slave station worked in the parsing forward mode, this module was carried out the resolving of wireless signal;
Downward receiver module 230: receive the uploading data that has user terminal under its command, when slave station works in the transparent forwarding pattern, this module transparent transmission, when slave station works in the parsing forward mode, the resolving of wireless signal;
Transmitter module 240 makes progress: transfer has the uploading data of user terminal under its command, when slave station worked in the transparent forwarding pattern, this module transparent transmission was when slave station works in the parsing forward mode, this module is carried out the cataloged procedure of the signal of downward receiver module outflow, issues main website;
Downward transmitter module 250: the transfer main website is transmitted to the data that slave station has user terminal under its command, when slave station works in the transparent forwarding pattern, this module transparent transmission, when slave station works in the parsing forward mode, this module is carried out the upwards cataloged procedure of the signal of receiver module outflow, issues the user terminal that slave station has under its command;
Can find out from above-described embodiment: the embodiment of the present invention is by the transmission range of minimizing user terminal wireless signal, thereby realization improves the channel quality of edge customer, and then reaches the effect that promotes the edge throughput.And for, area interference is because edge customer need not have been issued the base station with very large power again as traditional approach, because the interference of minizone is also a lot of than improving under traditional group net mode.
Obviously, the above is only the preferred embodiment of the present invention, should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.Equally, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of claim of the present invention and equivalent technologies thereof, the present invention is intended to comprise these changes and modification too interior.
Claims (4)
1. the relay scheduling method of a radio communication, is characterized in that, the method comprises:
Main website distributes unique identification to its jurisdiction slave station;
Main website is by control channel, carries out resource authorization as mark to slave station take the unique identification of slave station;
Slave station monitoring control channel, and after receiving scheduling authorization as resource pool, carries out scheduling of resource to its jurisdiction user with the available resources of current latest authorization indication;
Wherein, master station and follow station all possesses directly and end side is carried out the ability of radio communication, and all possesses the radio frequency transmit and receive ability;
Wherein, control channel both can be dispatched slave station, also can dispatch domestic consumer's terminal.
2. the method for claim 1, is characterized in that, described main website launches mandate to slave station by wireless mode.
3. a radio communication relaying main website, is characterized in that, this device comprises:
Scheduler module: be used for scheduling station and have regional user terminal under its command, and be descending slave station scheduling Radio Resource;
Receiver module: receive the data of the user terminal of slave station forwarding, and receive the data message that main website has regional user terminal under its command;
Transmitter module: the emission main website has the data of regional user terminal under its command, and emission has the downlink data of the user terminal that slave station has under its command under its command.
4. a radio communication relaying slave station, is characterized in that, this device comprises:
Scheduler module: be used for to receive the authorization message from main website, and with the scheduling resource of the current main website of receiving, as resource pool, the user terminal that scheduler has under its command;
Receiver module upwards: receive data and control signal that main website is handed down to the user terminal that this slave station has under its command, and receive main website to the control signal of this slave station;
Downward receiver module: receive the uploading data that has user terminal under its command;
Transmitter module makes progress: transfer has the uploading data of user terminal under its command;
Downward transmitter module: the transfer main website is transmitted to the data that slave station has user terminal under its command.
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| CN2011102136002A CN103179671A (en) | 2011-07-28 | 2011-07-28 | Method and device for relay scheduling of wireless communication |
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| CN2011102136002A CN103179671A (en) | 2011-07-28 | 2011-07-28 | Method and device for relay scheduling of wireless communication |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107220070A (en) * | 2017-08-01 | 2017-09-29 | 浙江佳乐科仪股份有限公司 | A kind of Internet of Things DTU collecting methods |
| CN109565832A (en) * | 2016-08-11 | 2019-04-02 | 株式会社Ntt都科摩 | Sending method, method of reseptance, trunking, base station and mobile station |
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2011
- 2011-07-28 CN CN2011102136002A patent/CN103179671A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109565832A (en) * | 2016-08-11 | 2019-04-02 | 株式会社Ntt都科摩 | Sending method, method of reseptance, trunking, base station and mobile station |
| CN107220070A (en) * | 2017-08-01 | 2017-09-29 | 浙江佳乐科仪股份有限公司 | A kind of Internet of Things DTU collecting methods |
| CN107220070B (en) * | 2017-08-01 | 2020-09-08 | 浙江佳乐科仪股份有限公司 | DTU data acquisition method for Internet of things |
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Application publication date: 20130626 |