CN101155409A - Method for transmitting information from base station to relay station - Google Patents
Method for transmitting information from base station to relay station Download PDFInfo
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- CN101155409A CN101155409A CNA200610141584XA CN200610141584A CN101155409A CN 101155409 A CN101155409 A CN 101155409A CN A200610141584X A CNA200610141584X A CN A200610141584XA CN 200610141584 A CN200610141584 A CN 200610141584A CN 101155409 A CN101155409 A CN 101155409A
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- information
- base station
- terminal
- additional information
- relay station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/345—Modifications of the signal space to allow the transmission of additional information
- H04L27/3461—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel
- H04L27/3472—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel by switching between alternative constellations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/345—Modifications of the signal space to allow the transmission of additional information
- H04L27/3461—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel
- H04L27/3483—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel using a modulation of the constellation points
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/3488—Multiresolution systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2603—Arrangements for wireless physical layer control
- H04B7/2606—Arrangements for base station coverage control, e.g. by using relays in tunnels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Relay Systems (AREA)
Abstract
A method for sending information to a relay station from a base station is provided in the present invention, comprising: to use separately the information station sent by the base station to the relay station and information sent by the base station to the first-hop terminal as an additional information and a basic information, and to stack the additional information and the basic information together to modulate adopting layered modulation; the base station sends the layered modulation information to the relay station. Using the present invention is beneficial to signaling information and/or time delay sensitive service data sent to the corresponding relay station from the base station on time, thereby can improve the system performance, and using the present invention can not occupy added system resource yet, thereby improve the system resource utilization, that is promoting the frequency spectrum efficiency.
Description
Technical field
The present invention relates to wireless communication field, particularly a kind of method that information from base station is sent to relay station.
Background technology
In recent years, fast development along with the communication technology, based on electronics and (the Instituteof Electrical and Electronics Engineers of The Institution of Electrical Engineers, IEEE) (World Interoperability for Microwave Access Wimax) becomes a hot technology with extremely strong competitiveness to the World Interoperability for Microwave Access, WiMax of 802.16 standards.Wimax is that (Wireless Metropolitan AreaNetwork, WMAN) technology are a kind of new air-interface standards at microwave and millimere-wave band proposition to a wireless MAN.Wimax has availability of frequency spectrum height, wide coverage, advantages such as data rate height.The more important thing is, Wimax has had both the superiority bandwidth in traditional broadband of inserting based on cable and the flexibility and the mobility of wireless access, also can provide and to satisfy high quality-of-service grade (Quality of Service, QOS) miscellaneous service is comprising the timely transmission at delay-sensitive (relay-sensitive) business.
Recently, IEEE has proposed relaying working group (relay task group) scheme in the 802.16j standard, its objective is relay station (Relay Station, RS) technology introduced.Relay station is deployed in the wireless cellular system, can strengthen covering concerning the base station, the increase capacity, and (or mobilestation MS) can reduce transmitting power for subscriber station, SS, and reduces the influence of shadow effect to terminal.To achieve these goals, it is that all communication all is by base station (base station in the coverage that a kind of control mode is arranged in the junction network, BS) unification is controlled, concrete, BS is by sending information to all terminals in the coverage, comprising BS information is sent to RS, send information to terminal by RS again.In this process, control to RS, for example to the configuration change of RS, or the change of process RS double bounce user's configuration parameter, or to some business, for example at the business of delay-sensitive, or the terminal in the handoff procedure supported etc. situation all to need guarantee information to be sent to RS timely by BS.So, having the very important point here is to guarantee that BS sends to RS timely with information, further could guarantee that RS in time sends to terminal with information.
Summary of the invention
The purpose of this invention is to provide and a kind of information from base station is sent to the method for relay station,, guarantee that further RS in time sends to terminal with information to guarantee that BS sends to RS timely with information.
For solving the problems of the technologies described above, the invention provides a kind of method that information from base station is sent to relay station and be achieved in that
A kind of information from base station is sent to the method for relay station, comprising:
The base station is sent to the information of relay station and base station send to one and jump terminal information, and this additional information and essential information be superimposed adopt the mode of hierarchical modulation to modulate respectively as additional information and essential information;
The base station will send to relay station through the information after the hierarchical modulation.
Describedly the base station is sent to the information of relay station and base station send to one and jump terminal information, and the be superimposed mode that adopts hierarchical modulation of this additional information and essential information is modulated and comprised respectively as additional information and essential information:
Select one to jump terminal according to link circuit condition and modulation system;
The information that the base station is sent to relay station sends to one with the base station and jumps terminal information as essential information as additional information, and this additional information is superimposed upon selected one jumps on the essential information of terminal, adopts the mode of hierarchical modulation to modulate then.
Select a jumping terminal to comprise according to link circuit condition and modulation system:
According to the measurement report of channel quality information and/or channel condition information and/or base station, and in conjunction with modulation system selection one jumping terminal.
Describedly the base station is sent to the information of relay station and base station send to one and jump terminal information, and the be superimposed mode that adopts hierarchical modulation of this additional information and essential information is modulated and comprised respectively as additional information and essential information:
Select one to jump being connected of terminal according to link circuit condition and modulation system;
The information that the base station is sent to relay station is as additional information, and the base station is sent to selected one information of connection of jumping terminal as essential information, and described additional information is superimposed upon on the described essential information, adopts the mode of hierarchical modulation to modulate then.
Describedly the base station is sent to the information of relay station and base station send to one and jump terminal information, and the be superimposed mode that adopts hierarchical modulation of this additional information and essential information is modulated and comprised respectively as additional information and essential information:
The base station is sent to the information of relay station as additional information, the base station is sent to information that at least one difference of jumping terminal connects as essential information, and described additional information and essential information are superimposed upon corresponding described at least one difference of jumping terminal are connected, adopt the mode of hierarchical modulation to modulate then.
Describedly the base station is sent to the information of relay station and base station send to one and jump terminal information, and the be superimposed mode that adopts hierarchical modulation of this additional information and essential information is modulated and comprised respectively as additional information and essential information:
The base station is sent to the information of different relay stations as additional information, the base station is sent to one jump information in the connection of terminal as essential information, and this additional information and essential information are superimposed upon on same connection of this jumping terminal, adopt the mode of hierarchical modulation to modulate then.
Described the be superimposed mode that adopts hierarchical modulation of this additional information and essential information modulated and comprised:
Relative quality according to the link between the link between base station and the relay station and a base station and the jumping terminal is selected corresponding symbolic distance;
Adopt selected symbolic distance this additional information and essential information to be mapped to the different layers of signal constellation which respectively.
The selected symbolic distance of described employing further comprises the different layers that this additional information and essential information are mapped to signal constellation which respectively:
Be divided into different groups according to selected distinct symbols apart from jumping terminal with described one.
The selected symbolic distance of described employing further comprises the different layers that this additional information and essential information are mapped to signal constellation which respectively:
According to selected distinct symbols distance at least one selected one difference connection of jumping terminal is divided into different groups.
Select the modulation system of corresponding additional messages to the bearing capacity of link of terminal according to the base station.
Described method further comprises:
Described terminal is dynamically updated according to the terminal online information of collecting by the base station.
Further comprise after this method:
The relay station reception also recovers described additional information.
Described additional information comprises the information of signaling information and/or delay sensitive.
Described method further comprises:
Relay station is adjusted transmitting power according to described additional information.
Described method further comprises:
Relay station is adjusted the configuration parameter of this relay station or terminal according to described additional information.
This method need when terminal is switched to be applied to relay station that timely support is provided, and guarantees the unbroken situation of communication link of terminal.
By above technical scheme provided by the invention as seen, the present invention sends to a jumping terminal information respectively as additional information and essential information with information and the base station that the base station sends to relay station, and this additional information and essential information be superimposed adopt the mode of hierarchical modulation to modulate, the information that will pass through hierarchical modulation by the base station sends to relay station then.Utilize the present invention, help the business datum of signaling information and/or delay sensitive is sent to the corresponding relay station by the base station timely, thereby further improved systematic function, and utilize the not outer system resource of occupying volume of the present invention, thereby improved resource utilization ratio, promptly improved spectrum efficiency.
Description of drawings
Fig. 1 is a jumping and a multi-hop schematic diagram;
Fig. 2 send information to the flow chart of the method for relay station for the present invention realizes the base station;
Fig. 3 is the signal map planisphere of hierarchical modulating method among the present invention.
Embodiment
Core of the present invention provides a kind of method that information from base station is sent to relay station.Concrete, the information that the base station is sent to relay station sends to one with the base station and jumps terminal information as essential information as additional information, this additional information and essential information is superimposed carries out sending to relay station after the hierarchical modulation.
One skilled in the art will appreciate that has a kind of hierarchical modulation (hierarchicalmodulation) technology in the prior art, be with two independently information carry out hierarchical modulation as essential information and additional information respectively.The thought of hierarchical modulation specifically is, in physical layer logic business is divided into two data flow, and one is essential information stream, and another is an additional information stream, and these two data flow points are not mapped to the different layers of signal constellation which.Usually, symbolic distance after the data map of essential information stream is bigger than the symbolic distance of additional Information Level, therefore, the data flow of additional information layer can only be received by the receiver near transmitter, and the data flow of essential information layer can be comprised that the receiver away from transmitter and close transmitter receives.
Those skilled in the art also know, terminal can be divided into one according to the number of links that experiences before the information incoming terminal and jump terminal, multi-hop terminal types such as double bounce terminal.For example shown in Figure 1, straight line among the figure is represented a link, can find out, 1 of information incoming terminal has experienced by the base station to the link 1 the terminal 1, then terminal 1 is one to jump terminal, and information incoming terminal 2 experienced the base station to the link 2A between the relay station and relay station to the link 2B between the terminal, promptly experienced two links, then terminal 2 is the double bounce terminal, and the rest may be inferred for the multi-hop terminal.Terminal described in the inventive method is a jumping terminal.
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with drawings and embodiments.
Fig. 2 shows the present invention and realizes that the base station send information to the flow process of the method for relay station.
Step 201: BS is sent to the information of RS and base station send to one and jump end message, this additional information and essential information are superimposed adopt the mode of hierarchical modulation to modulate respectively as additional information and essential information.
The front is mentioned, have in the prior art a kind of hierarchical modulation technology can with two independently information respectively as essential information and additional information stack carry out hierarchical modulation.Among the present invention, BS is sent to one jump terminal information as essential information (Basic Message), the information that BS will be sent to RS is as additional information (Additional Message), this essential information and additional information is superimposed adopts the mode of hierarchical modulation to modulate.
Fig. 3 shows the constellation mapping figure of this hierarchical modulation mode.
As shown in Figure 3, described essential information and additional information are mapped to the different layers of signal constellation which respectively.Suppose that 2 bit informations that send to terminal are " 1 ", carry out hierarchical modulation, be output as 1+d/2 according to the additional information amount of 2 bits, 1+j*d/2,1-d/2 or 1-j*d/2, the information that sends to RS so can be 4 bits.Symbolic distance d is an important parameter, and d can determine according to the relative quality that link and BS between the BS-RS jump link between the terminal.The terminal channel quality of selecting is good more, and it is also just big more that d just can obtain big more, correspondingly stackable additional information amount.Suitably select parameter d, the interference that additional information is caused disperses or reduction, and terminal can successfully receive essential information, and simultaneously, RS can receive and recover essential information and additional information.
In the network that has laid relay station, usually has link-quality preferably between base station and the relay station, therefore can make relay station receive more information by the mode of taking this hierarchical modulation, promptly not influence one and jump terminal and receive on the basis that needs the essential information that receives and make relay station increase the additional information that receives in this hierarchical modulation.In addition, relay station can also receive the essential information in this hierarchical modulation.
The additional information of stack can produce certain interference to essential information, and the essential information quality of disturbing conference to cause terminal to receive descends, and therefore, it is very important to reduce the interference that produces in this hierarchical modulation mode of employing.The present invention can adopt and comprise that following several mode that exemplifies out carries out hierarchical modulation:
Mode 1A: jump terminal according to link circuit condition and coding mode selection one, the base station is sent to the information of relay station as additional information, the base station is sent to selected one jump the information of terminal correspondence as essential information, described additional information is superimposed upon selected one jumps on the essential information of terminal, and adopt the mode of hierarchical modulation to modulate.
Link circuit condition described here specifically comprises the channel quality information that reports, and (Channel QualityInformation, CQI), (Channel State Information, CSI), BS is to the measurement report of this link for channel condition information.Then can select one to jump terminal according to the CQI quality of this terminal and/or the measurement report of CSI quality and/or BS.The overall principle of selecting is a jumping terminal of selecting link circuit condition good.
Below be combined into this selection course of example explanation with CQI quality and modulation system.
Select CQI matter measured one to jump terminal.Because a jumping terminal CQI quality of selecting is good, can make its influence that is interfered less relatively, like this, RS can receive the additional information and the correct demodulation of this modulation system, terminal then can receive essential information and correct demodulation, and can not be applied additional information influence thereon.
Simultaneously, also to consider the influence of modulation system.
Be specially:
When two one CQI that jump the terminal respective links are identical, select one to jump terminal according to modulation system corresponding codes efficient.
For example have two link circuit conditions identical one to jump terminal selective, its modulation system is respectively QPSK and 16QAM because the corresponding code efficiency of QPSK is lower than 16QAM, then selecting modulation mode is that one of QPSK jumps terminal.And for example its modulation system is respectively 16QAM and 64QAM, because the corresponding code efficiency of 16QAM is lower than 64QAM, then selecting modulation mode is that one of 16QAM jumps terminal.More additional information could be superimposed upon this like this and one jump the modulation of terminal links higher slice, or be reduced in this one when jumping superimposing additional information on terminal links to this influence of jumping link terminal itself.
When two one modulation systems of jumping terminals are identical, then select the CQI quality good relatively one jump terminal.
Principle is similar therewith for the mode of other selection one jumping terminal, does not repeat them here.
Mode 1B: select one to jump being connected of terminal according to link circuit condition and modulation system, the base station is sent to the information of relay station as additional information, the base station is sent to selected one jump the information of connection of terminal as essential information, described additional information is superimposed upon on the described essential information, and adopts the mode of hierarchical modulation to modulate.
In the WIMAX system, the communication of base station and terminal realizes by being connected (Connection), and different business or application etc. can corresponding different connections, and then terminal can have a plurality of the connection with the base station.
In this step, with additional information be superimposed upon the selected essential information that is connected on, and adopt the mode of hierarchical modulation to modulate.
Especially, following several mode can also be arranged:
Mode 1C: the base station is sent to the information of relay station as additional information, the base station is sent to one one information of jumping the terminal correspondence as essential information, described additional information and essential information are superimposed upon this difference of jumping terminal are connected, and adopt the mode of hierarchical modulation to modulate.
Mode 1D: the base station is sent to the information of relay station as additional information, the base station is sent to a plurality of one jump terminal information as essential information, described additional information and essential information are superimposed upon described a plurality of one difference of jumping terminal are connected, and adopt the mode of hierarchical modulation to modulate.
Mode 1E: the base station is sent to the information of different relay stations as additional information, the base station is sent to one jump terminal information as essential information, described additional information and essential information are superimposed upon on same connection of this jumping terminal, and adopt the mode of hierarchical modulation to modulate.
Alternate manner similar to the above can also be arranged, do not repeat them here.
Reduce because the mode to the interference of advancing this information that the additional information of stack carries out that hierarchical modulation produces also comprises:
Upgrade selected one and jump terminal.
It is specially, and the base station is according to the dynamic jumping terminal of upgrading of the online information of collected terminal.
Can upgrade dynamically is that each base station can change selected one need send additional information the time and jumps terminal, can guarantee so selected one jump terminal all be at every turn superpose and hierarchical modulation after send the additional information effect preferable one jump terminal.For example can determine, or change according to factors such as a selected jumping link of terminal quality, modulation systems according to the quantity of the additional information that is sent.
The conflicting mode that reduction is carried out the hierarchical modulation generation owing to the additional information of stack also comprises:
The value of suitable selection symbolic distance d.
Relative quality according to the link between the link between base station and the relay station and a base station and the jumping terminal is selected corresponding d value.Adopt selected d value described essential information and additional information can be mapped to the different layers of signal constellation which respectively.Further, the d value of suitable selection employing can be divided into many groups with a jumping terminal of carrying out the hierarchical modulation operation, and different groups has different jumping terminals.The d value that adopts in selected group obtains big more, and the user channel quality in the corresponding group requires just high more, will select relative channel quality better that the user enters this group.D obtains more little, and the user in the corresponding group gets channel quality and requires just lowly relatively, and just can select relative channel quality is not that too high user enters this group.Different groups can have different jumping terminals, and different connections can also be arranged.
Suitably select parameter d, the interference that additional information is caused disperses or reduction, and terminal can successfully receive essential information, and simultaneously, RS can receive and recover essential information and additional information.
In addition, can select the modulation system of corresponding additional messages according to the base station to the bearing capacity of link of terminal.When this link bearer ability is big, can select the additional messages of this link is adopted the high modulation system of corresponding code efficiency, otherwise, when this link bearer ability hour, can select the additional messages of this link is adopted the low modulation system of corresponding code efficiency.
By above process, the base station is sent to the information of relay station and base station send to one and jump terminal information, and this additional information and essential information be superimposed adopt the mode of hierarchical modulation to modulate respectively as additional information and essential information.During concrete enforcement,, above different ways can also be arranged in order to reduce interference.
The information that step 202:BS sends after hierarchical modulation arrives RS.
The additional information that BS will send to RS is superimposed upon together carries out on the essential information sending after the hierarchical modulation, and RS receives the information after this modulation, can therefrom correct demodulation sends to the additional information of this RS.Simultaneously, terminal receives after this information also the essential information that can therefrom correct demodulation sends to this terminal.Owing to adopted several modes to reduce in the abovementioned steps because therefore the interference that superimposing additional information produces can guarantee that terminal correctly receives reconciliation and readjusts the distribution the essential information of giving this terminal.
Like this, realized that BS in time sends to RS with additional information.
These additional informations can be the information of network side notice RS change configuration, perhaps realize the terminal in switching is given promptly to remedy.For example, because some must in time change the configuration of RS constantly as required, for example need in an of short duration time, improve or reduce the situation of the transmitted power of RS.
Realization to a kind of situation that the terminal in switching gives promptly to remedy is, a user communicates by relay station and base station, switch to the process of another relay station from described relay station this user, certain link in channel quality sudden change or the handoff procedure may occur handles and makes mistakes and cause customer service to be interrupted, at this moment, make the user rebulid new connection and the user connected and do not interrupt that needing has some extra and urgent Signalling exchanges between base station-relay station-terminal links.Can take method of the present invention in above situation, the additional information of taking the hierarchical modulation mode will send to RS is superimposed upon together carries out on the essential information sending to RS after the hierarchical modulation.
Can also adopt the method for the inventive method at the transmission of the data service of delay-sensitive.Because the present invention can be superimposed upon described data service flexibly and together carry out on the essential information in time sending to RS after the hierarchical modulation as the additional information that sends to RS, reduced the time delay of BS to last this section link of RS.Similarly, can also adjust the configuration parameter of relay station or terminal by method of the present invention.
The present invention can also be applied to system resource when in short supply.When BS had the information that need send to RS, system resource was in short supply at this moment, did not have extra resource allocation to give this message transmission, at this moment, can realize this purpose by utilizing method of the present invention.
Generally speaking, also can be by utilizing the present invention.Owing to utilized the link of base station to terminal room, the base station is sent to terminal information as essential information, after superposeing as additional information and with this essential information, the information that the base station is sent to RS carries out hierarchical modulation, improved the availability of frequency spectrum.
Certainly, use the present invention and be not limited to above-described situation, also can use under other situation.
By above execution mode as seen, the base station is sent to relay station information as additional information, the base station is sent to one jump terminal information, this additional information and essential information are superimposed carry out hierarchical modulation, again the information after this hierarchical modulation is sent to relay station as essential information.Utilize the present invention, the outer system resource of occupying volume not, thus improved resource utilization ratio, can also guarantee not have additional system resources to divide timing to send information, and the transmission that guarantees delay sensitive information, thereby improve the reliability and the performance of system.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wish that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.
Claims (16)
1. one kind sends to the method for relay station with information from base station, it is characterized in that, comprising:
The base station is sent to the information of relay station and base station send to one and jump terminal information, and this additional information and essential information be superimposed adopt the mode of hierarchical modulation to modulate respectively as additional information and essential information;
The base station will send to relay station through the information after the hierarchical modulation.
2. the method for claim 1, it is characterized in that, describedly the base station is sent to the information of relay station and base station send to one and jump terminal information, and the be superimposed mode that adopts hierarchical modulation of this additional information and essential information is modulated and comprised respectively as additional information and essential information:
Select one to jump terminal according to link circuit condition and modulation system;
The information that the base station is sent to relay station sends to one with the base station and jumps terminal information as essential information as additional information, and this additional information is superimposed upon selected one jumps on the essential information of terminal, adopts the mode of hierarchical modulation to modulate then.
3. method as claimed in claim 2 is characterized in that, selects a jumping terminal to comprise according to link circuit condition and modulation system:
According to the measurement report of channel quality information and/or channel condition information and/or base station, and in conjunction with modulation system selection one jumping terminal.
4. the method for claim 1, it is characterized in that, describedly the base station is sent to the information of relay station and base station send to one and jump terminal information, and the be superimposed mode that adopts hierarchical modulation of this additional information and essential information is modulated and comprised respectively as additional information and essential information:
Select one to jump being connected of terminal according to link circuit condition and modulation system;
The information that the base station is sent to relay station is as additional information, and the base station is sent to selected one information of connection of jumping terminal as essential information, and described additional information is superimposed upon on the described essential information, adopts the mode of hierarchical modulation to modulate then.
5. the method for claim 1, it is characterized in that, describedly the base station is sent to the information of relay station and base station send to one and jump terminal information, and the be superimposed mode that adopts hierarchical modulation of this additional information and essential information is modulated and comprised respectively as additional information and essential information:
The base station is sent to the information of relay station as additional information, the base station is sent to information that at least one difference of jumping terminal connects as essential information, and described additional information and essential information are superimposed upon corresponding described at least one difference of jumping terminal are connected, adopt the mode of hierarchical modulation to modulate then.
6. the method for claim 1, it is characterized in that, describedly the base station is sent to the information of relay station and base station send to one and jump terminal information, and the be superimposed mode that adopts hierarchical modulation of this additional information and essential information is modulated and comprised respectively as additional information and essential information:
The base station is sent to the information of different relay stations as additional information, the base station is sent to one jump information in the connection of terminal as essential information, and this additional information and essential information are superimposed upon on same connection of this jumping terminal, adopt the mode of hierarchical modulation to modulate then.
7. as each described method in the claim 1,2,4,5,6, it is characterized in that, described the be superimposed mode that adopts hierarchical modulation of this additional information and essential information is modulated and comprised:
Relative quality according to the link between the link between base station and the relay station and a base station and the jumping terminal is selected corresponding symbolic distance;
Adopt selected symbolic distance this additional information and essential information to be mapped to the different layers of signal constellation which respectively.
8. method as claimed in claim 7 is characterized in that, the selected symbolic distance of described employing further comprises the different layers that this additional information and essential information are mapped to signal constellation which respectively:
Be divided into different groups according to selected distinct symbols apart from jumping terminal with described one.
9. method as claimed in claim 7 is characterized in that, the selected symbolic distance of described employing further comprises the different layers that this additional information and essential information are mapped to signal constellation which respectively:
According to selected distinct symbols distance at least one selected one difference connection of jumping terminal is divided into different groups.
10. as each described method in the claim 1 to 6, it is characterized in that, select the modulation system of corresponding additional messages according to the base station to the bearing capacity of link of terminal.
11., it is characterized in that described method further comprises as each described method in the claim 1 to 6:
Described terminal is dynamically updated according to the terminal online information of collecting by the base station.
12. as each described method in the claim 1, it is characterized in that, further comprise after this method:
The relay station reception also recovers described additional information.
13., it is characterized in that described additional information comprises the information of signaling information and/or delay sensitive as each described method in claim 1 to 6 or 12.
14. method as claimed in claim 13 is characterized in that, described method further comprises:
Relay station is adjusted transmitting power according to described additional information.
15. method as claimed in claim 13 is characterized in that, described method further comprises:
Relay station is adjusted the configuration parameter of this relay station or terminal according to described additional information.
16. method as claimed in claim 13 is characterized in that, this method need when terminal is switched to be applied to relay station that timely support is provided, and guarantees the unbroken situation of communication link of terminal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610141584XA CN101155409A (en) | 2006-09-30 | 2006-09-30 | Method for transmitting information from base station to relay station |
| PCT/EP2007/060395 WO2008037811A1 (en) | 2006-09-30 | 2007-10-01 | Method for sending information from base station to relay station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610141584XA CN101155409A (en) | 2006-09-30 | 2006-09-30 | Method for transmitting information from base station to relay station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101155409A true CN101155409A (en) | 2008-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200610141584XA Pending CN101155409A (en) | 2006-09-30 | 2006-09-30 | Method for transmitting information from base station to relay station |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101155409A (en) |
| WO (1) | WO2008037811A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102119496A (en) * | 2008-10-31 | 2011-07-06 | 上海贝尔股份有限公司 | Distributed retransmission method based on superposition coded modulation in multihop relay network |
| CN104144009A (en) * | 2014-07-08 | 2014-11-12 | 北京邮电大学 | Wireless repeating type hybrid and cooperative transmission method and system based on hierarchical modulation technology |
| CN105991232A (en) * | 2015-03-02 | 2016-10-05 | 上海数字电视国家工程研究中心有限公司 | Coding and modulation method as well as demodulation and decoding method based on superposition coding |
| CN107995610A (en) * | 2017-11-09 | 2018-05-04 | 安徽帆扬通信电子技术有限公司 | A kind of emergency communication system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100993417B1 (en) * | 2007-12-12 | 2010-11-09 | 아주대학교산학협력단 | Relay network and entity for continuous transmission based on superposition coding |
| EP2182662B1 (en) * | 2008-10-31 | 2013-12-04 | Nokia Solutions and Networks GmbH & Co. KG | Method of and radio network for transmitting layered data to multiple receiving stations |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7280613B2 (en) * | 2003-11-26 | 2007-10-09 | Delphi Technologies, Inc. | Method to inject hierarchical data onto single carrier stream |
| JP4575458B2 (en) * | 2004-12-22 | 2010-11-04 | テレフオンアクチーボラゲット エル エム エリクソン（パブル） | Transmission of composite digital broadcast information |
| US20070054624A1 (en) * | 2005-09-07 | 2007-03-08 | Sharp Kabushiki Kaisha | Broadcasting base station device, mobile terminal device, hierarchical modulation setup method, broadcast system, and hierarchical modulation setup computer program |
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2006
- 2006-09-30 CN CNA200610141584XA patent/CN101155409A/en active Pending
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102119496A (en) * | 2008-10-31 | 2011-07-06 | 上海贝尔股份有限公司 | Distributed retransmission method based on superposition coded modulation in multihop relay network |
| CN102119496B (en) * | 2008-10-31 | 2013-08-14 | 上海贝尔股份有限公司 | Distributed retransmission method based on superposition coded modulation in multihop relay network |
| CN104144009A (en) * | 2014-07-08 | 2014-11-12 | 北京邮电大学 | Wireless repeating type hybrid and cooperative transmission method and system based on hierarchical modulation technology |
| CN104144009B (en) * | 2014-07-08 | 2019-07-19 | 北京邮电大学 | Wireless relay mixing collaborative transmission method and system based on hierarchical modulation technology |
| CN105991232A (en) * | 2015-03-02 | 2016-10-05 | 上海数字电视国家工程研究中心有限公司 | Coding and modulation method as well as demodulation and decoding method based on superposition coding |
| CN105991232B (en) * | 2015-03-02 | 2019-05-03 | 上海数字电视国家工程研究中心有限公司 | Code modulating method and demodulation coding method based on supercomposed coding |
| CN107995610A (en) * | 2017-11-09 | 2018-05-04 | 安徽帆扬通信电子技术有限公司 | A kind of emergency communication system |
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| Publication number | Publication date |
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| WO2008037811A1 (en) | 2008-04-03 |
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