CN105553608B - A kind of data transmission method based on non-orthogonal multiple mode, apparatus and system - Google Patents
A kind of data transmission method based on non-orthogonal multiple mode, apparatus and system Download PDFInfo
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- CN105553608B CN105553608B CN201510890712.XA CN201510890712A CN105553608B CN 105553608 B CN105553608 B CN 105553608B CN 201510890712 A CN201510890712 A CN 201510890712A CN 105553608 B CN105553608 B CN 105553608B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
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Abstract
The embodiment of the present application discloses a kind of data transmission method based on non-orthogonal multiple mode, apparatus and system, is related to mobile communication technology field, is applied to terminal, comprising: obtains terminal corresponding power back-off factors in nonopiate random access group G belonging to it；According to downlink path loss, expected power, the network-side of reaching of network-side for physical uplink channel resource, the power back-off factors and the corresponding back-off step-length of the nonopiate random access group G of the terminal distribution, determine that network-side is the data sending power of the physical uplink channel of terminal distribution；According to identified data sending power, communication data is sent to the network-side by the physical uplink channel that network-side is the terminal distribution；Network-side is received for the feedback information of decoding result.Using scheme transmission data provided by the embodiments of the present application, the probability of communication data transmitted by each terminal of network-side correct decoding is improved.
Description
Technical field
This application involves mobile communication technology field, in particular to a kind of transmission side data based on non-orthogonal multiple mode
Method, apparatus and system.
Background technique
With network technology high speed development, more and more terminals need to access wireless network in wireless communications, each
Terminal access wireless network is required to accordingly for accessing the resource of network and being used for transmission the resource of data, however wireless network
These resources are limited in network, so, with the development of wireless network, huge choose is faced on network insertion capacity
War.
In wireless communications, the selected multiple access random access mode of terminal is one of influence network insertion capacity important
Factor.From the point of view of resource multiplex mode, multiple access random access mode can be divided into orthogonal multiple access random access mode and nonopiate
Two kinds of multiple access random access mode.
Corresponding with orthogonal multiple access random access mode and non-orthogonal multiple random access mode, data transfer mode can be with
It is divided into the data transfer mode based on orthogonal multi-access mode and the data transfer mode based on non-orthogonal multiple mode.
Wherein, when carrying out data transmission using the data transfer mode based on non-orthogonal multiple mode, multiple terminals are supported
Identical network insertion resource and data transmission resources are multiplexed, in this way, network-side is to receive multiple terminals logical in synchronization
When crossing the communication data that identical channel resource is sent, done between the general elimination user using serial or parallel interference deleting technique
It disturbs, to guarantee that network-side is capable of the communication data of each terminal transmission of correct decoding.However, in the prior art, each terminal is logical
Cross same channel resource to network-side send communication data when, inter-user interference reduces network-side correct decoding performance, therefore
Network side equipment needs to eliminate mutual interference when user is multiplexed same transfer resource using interference deleting technique, and raising is correctly translated
Code probability.
Summary of the invention
The embodiment of the present application discloses a kind of data transmission method based on non-orthogonal multiple mode, apparatus and system, with
The accuracy rate that network-side eliminates inter-user interference is improved, the probability of network side equipment correct decoding is improved.
In order to achieve the above objectives, the embodiment of the present application discloses a kind of transmission side data based on non-orthogonal multiple mode
Method is applied to terminal, which comprises
Obtain the terminal corresponding power back-off factors in nonopiate random access group G belonging to it, wherein the function
Rate back-off factor is the parameter for indicating back-off size, and each terminal is corresponding in the nonopiate random access group G
Power back-off factors are different；
According to downlink path loss, expected power, the network-side of reaching of network-side for the physical uplink letter of the terminal distribution
Road resource, the power back-off factors and the corresponding back-off step-length of the nonopiate random access group G, determine the network
End is the data sending power of the physical uplink channel of the terminal distribution；
According to identified data sending power, by physical uplink channel that network-side is the terminal distribution to described
Network-side sends communication data；
Receive the feedback information for decoding result that the network-side is sent.
It is described to obtain terminal nonopiate random access group belonging to it in a kind of specific implementation of the application
Corresponding power back-off factors in G, comprising:
Judge whether the terminal is group center terminal in the nonopiate random access group G；
If it has, then determining that the terminal corresponding power back-off factors in the nonopiate random access group G are 0；
If it has not, the power then sent according to the group center terminal in the nonopiate random access group G with broadcast mode
The mark of back-off factor set and the terminal obtains the terminal corresponding function in the nonopiate random access group G
Rate back-off factor.
In a kind of specific implementation of the application, it is described according to downlink path loss, network-side it is expected reach power,
Network-side is physical uplink channel resource, the power back-off factors and the nonopiate random access group of the terminal distribution
The corresponding back-off step-length of G determines that the network-side is the data sending power of the physical uplink channel of the terminal distribution,
Include:
According to following formula, determine that the data that the network-side is the physical uplink channel of the terminal distribution send function
Rate Pt,
Pt=PPUSCH,c- λ ρ,
Wherein, λ indicates that power back-off factors obtained, ρ indicate that the corresponding power of the nonopiate random access group G returns
Regress length；PPUSCH,cFor the transmission power of orthogonal random access, power, network-side expected arrival rate, net are sent by terminal maximum
Network end is that the physical uplink channel resource block number of the terminal distribution and downlink path loss determine.
In a kind of specific implementation of the application, the back-off step-length,
For preset numerical value；Or
The numerical value sent with broadcast mode to the terminal for the network-side.
In order to achieve the above objectives, the embodiment of the present application discloses a kind of transmission side data based on non-orthogonal multiple mode
Method is applied to network-side, which comprises
It is the nonopiate random access group that each terminal in nonopiate random access group G, which is received, by the network-side
The physical uplink channel of terminal distribution sends the communication data that power is sent with different data in G；
According to the different power back-off factors of each terminal in the nonopiate random access group G, deleted using serial interference
Except the communication data for separating and decoding different terminals；
Terminal feedback decoding result into the nonopiate random access group G.
In order to achieve the above objectives, the embodiment of the present application discloses a kind of data transmission dress based on non-orthogonal multiple mode
It sets, is applied to terminal, described device includes:
Power back-off factors obtain module, corresponding in nonopiate random access group G belonging to it for obtaining the terminal
Power back-off factors, wherein the power back-off factors are parameter for indicating back-off size, it is described it is nonopiate with
The corresponding power back-off factors of each terminal are different in machine access group G；
Data sending power determining module, for being according to downlink path loss, the expected arrival power of network-side, network-side
The physical uplink channel resource of the terminal distribution, the power back-off factors and the nonopiate random access group G are corresponding
Back-off step-length determines that the network-side is the data sending power of the physical uplink channel of the terminal distribution；
Communication data sending module, for being the terminal point by network-side according to identified data sending power
The physical uplink channel matched sends communication data to the network-side；
Feedback information receiving module, the feedback information for decoding result sent for receiving the network-side.
In a kind of specific implementation of the application, the power back-off factors obtain module, comprising:
Group center terminal judging submodule, for judging whether the terminal is in the nonopiate random access group G
Group center terminal；
Power back-off factors determine submodule, are yes for the judging result in described group of center terminal judging submodule
In the case of, determine that the terminal corresponding power back-off factors in the nonopiate random access group G are 0；
Power back-off factors obtain submodule, for be no in the judging result of described group of center terminal judging submodule
In the case of, the power back-off factors collection that is sent according to the group center terminal in the nonopiate random access group G with broadcast mode
The mark of conjunction and the terminal, obtains the terminal corresponding power back-off factors in the nonopiate random access group G.
In a kind of specific implementation of the application, the data sending power determining module, be specifically used for according to
Lower expression formula determines that the network-side is the data sending power P of the physical uplink channel of the terminal distributiont,
Pt=PPUSCH,c- λ ρ,
Wherein, λ indicates that power back-off factors obtained, ρ indicate that the corresponding power of the nonopiate random access group G returns
Regress length；PPUSCH,cFor the transmission power of orthogonal random access, power, network-side expected arrival rate, net are sent by terminal maximum
Network end is that the physical uplink channel resource block number of the terminal distribution and downlink path loss determine.
In order to achieve the above objectives, the embodiment of the present application discloses a kind of data transmission dress based on non-orthogonal multiple mode
It sets, is applied to network-side, described device includes:
Communication data receiving module passes through the network-side for receiving each terminal in nonopiate random access group G
The communication number that power is sent is sent with different data for the physical uplink channel of terminal distribution in the nonopiate random access group G
According to；
Communication data decoding module, for being returned according to the different power of each terminal in the nonopiate random access group G
The factor is moved back, the communication data for separating and decoding different terminals is deleted using serial interference；
Result feedback module is decoded, for the terminal feedback decoding result into the nonopiate random access group G.
In order to achieve the above objectives, the embodiment of the present application discloses a kind of data transmission system based on non-orthogonal multiple mode
System, the system comprises:
Using the terminal of above-mentioned apparatus and the network-side of application above-mentioned apparatus.
As seen from the above, in scheme provided by the embodiments of the present application, terminal obtains nonopiate random access group G belonging to it
In after corresponding power back-off factors and back-off step-length, according to downlink path loss, network-side is expected reaches power, network
End is that physical uplink channel resource, power back-off factors and the nonopiate random access group G of the terminal distribution are corresponding
Back-off step-length determines that the network-side is the data sending power of the physical uplink channel of the terminal distribution, and with institute
Determining data sending power sends communication data to network-side.Since the power back-off factors of each user are different, terminal hair
The arrival power that the communication data sent reaches network-side is different, and network-side is after receiving communication data, according to different arrival
Power is deleted using serial interference the communication data of multiple users carrying out interference deletion, decoding, and decoding result is fed back to
Terminal.Therefore, when carrying out data transmission using scheme provided by the embodiments of the present application, it can be improved between network-side eliminates user and do
The accuracy rate disturbed improves the probability of network side equipment correct decoding.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural representation of the data transmission system based on non-orthogonal multiple mode provided by the embodiments of the present application
Figure；
Fig. 2 is a kind of signaling process of the data transmission system based on non-orthogonal multiple mode provided by the embodiments of the present application
Schematic diagram；
Fig. 3 is a kind of process signal of data transmission method based on non-orthogonal multiple mode provided by the embodiments of the present application
Figure；
Fig. 4 is that the process of another data transmission method based on non-orthogonal multiple mode provided by the embodiments of the present application is shown
It is intended to；
Fig. 5 is a kind of structural representation of the data transmission device based on non-orthogonal multiple mode provided by the embodiments of the present application
Figure；
Fig. 6 is that the structure of another data transmission device based on non-orthogonal multiple mode provided by the embodiments of the present application is shown
It is intended to.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
Fig. 1 is a kind of structural representation of the data transmission system based on non-orthogonal multiple mode provided by the embodiments of the present application
Figure, the system include:
Terminal 101 and network-side 102.
Below with reference to signaling process schematic diagram shown in Fig. 2 to the above-mentioned data transmission system based on non-orthogonal multiple mode
It describes in detail.
The acquisition of terminal 101 corresponding power back-off factors (S201) in nonopiate random access group G belonging to it, and according to
Downlink path loss, network-side 102 be expected to reach power, network-side 102 be terminal 101 distribute physical uplink channel resource,
The power back-off factors and the corresponding back-off step-length of the nonopiate random access group G determine that network-side 102 is terminal
The data sending power (S202) of the physical uplink channel of 101 distribution, terminal 101 are led to according to identified data sending power
It crosses network-side 102 and sends communication data (S203) to network-side 102 for the physical uplink channel of its distribution, network-side 102 is connecing
After receiving communication data, according to the power back-off factors of terminal 101, is deleted using serial interference and separate and decode different terminals
Communication data (S204), then in the rear terminal feedback decoding result (S205) into nonopiate random access group G of decoding, eventually
End 101 receives the feedback information for decoding result that network-side 102 is sent.
Wherein, above-mentioned power back-off factors are the parameter for indicating back-off size.
In addition, the corresponding power back-off factors of each terminal are different in above-mentioned nonopiate random access group G.
Specifically, terminal 101 obtain nonopiate random access group G belonging to it in corresponding power back-off factors when,
Can first judge whether terminal 101 is group center terminal in nonopiate random access group G, is non-Random Orthogonal in terminal 101
In the case where group center terminal in access group G, the corresponding power in nonopiate random access group G of terminal 101 can be determined
Back-off factor is 0, on the contrary, in the case where terminal 101 is not the group center terminal in non-Random Orthogonal access group G, Ke Yigen
The power back-off factors set and terminal 101 sent according to the group center terminal in nonopiate random access group G with broadcast mode
Mark, obtain the corresponding power back-off factors in nonopiate random access group G of terminal 101.
Specifically, can determine that network-side 102 is according to following formula when terminal 101 determines that its rollback sends power
The data sending power rate P for the physical uplink channel that terminal 101 is distributedt,
Pt=PPUSCH,c- λ ρ,
Wherein, λ indicates that power back-off factors obtained, ρ indicate the corresponding back-off step of nonopiate random access group G
It is long；PPUSCH,cFor the transmission power of orthogonal random access, by terminal 101 it is maximum send the expected arrival rate of power, network-side 102,
Network-side 102 is that the physical uplink channel resource block number that terminal 101 is distributed and downlink path loss determine.
Specifically, above-mentioned back-off step-length, it can be as preset numerical value, be also possible to network-side 102 with wide
The numerical value that broadcast mode is sent to terminal 101.
As seen from the above, in scheme provided in this embodiment, terminal obtains right in nonopiate random access group G belonging to it
After the power back-off factors and back-off step-length answered, it is according to downlink path loss, the expected arrival power of network-side, network-side
Physical uplink channel resource, power back-off factors and the corresponding power of the nonopiate random access group G of the terminal distribution
Rollback step-length determines that the network-side is the data sending power of the physical uplink channel of the terminal distribution, and to determine
Data sending power to network-side send communication data.Since the power back-off factors of each user are different, what terminal was sent
The arrival power that communication data reaches network-side is different, and network-side is after receiving communication data, according to different arrival power
It is deleted using serial interference and the communication data of multiple users is subjected to interference deletion, decoding, and decoding result is fed back into terminal.
Therefore, when carrying out data transmission using scheme provided in this embodiment, it can be improved network-side and eliminate the accurate of inter-user interference
Rate improves the probability of network side equipment correct decoding.
Below by two embodiments of the method respectively from the angle of terminal and network-side to base provided by the embodiments of the present application
It is described in detail in the data transmission method of non-orthogonal multiple mode.
Fig. 3 is a kind of process signal of data transmission method based on non-orthogonal multiple mode provided by the embodiments of the present application
Figure, this method are applied to terminal, comprising:
S301: acquisition terminal corresponding power back-off factors in nonopiate random access group G belonging to it.
Wherein, above-mentioned power back-off factors are the parameter for indicating back-off size, specifically, back-off size
It can be calculated by following formula:
Back-off size=power back-off factors * back-off step-length.
It should be noted that the corresponding power back-off factors of each terminal are different in nonopiate random access group G.
Those skilled in the art are it is understood that generally comprise a group center end in nonopiate random access group
End and several non-group of center terminal, wherein group center terminal is to send beacon to network-side in the current random access period
Terminal.
Specifically, can judge whether present terminal is a group center terminal by following steps:
Within a random access period, network-side is used as matching between terminal per the multiple subcarriers of several time slot allocations
To discovery, firstly, determining communication information sending time slots in pairing discovery resource, wherein the communication information is beacon message or works as
The terminal identification information of preceding terminal；
Then, before the arrival of communication information sending time slots, whether existing non-present is whole in detection pairing discovery resource
Hold the beacon message sent；
If not detecting the beacon message that non-present terminal is sent before the arrival of communication information sending time slots, believe to communication
Beacon message is sent on breath sending time slots, and determines present terminal for a group center terminal；
If the beacon message that non-present terminal is sent is detected before the arrival of communication information sending time slots, to the communication information
The terminal identification information of present terminal is sent on sending time slots, and determines that present terminal is non-group of center terminal.
It should be noted that may include the terminal iidentification of present terminal, can also wrapping in above-mentioned terminal identification information
The path loss values of present terminal are included, it is, of course, also possible to which the application is defined not to this comprising other information.
Further, group center terminal can receive the terminal identification information of other terminals, and heart terminal receives in the group
nfAfter the terminal identification information that a terminal is sent, from nfSelection and the immediate min of path loss values between oneself in a terminal
{nNOMA- 1, nfA user establishes nonopiate random access group, and generates the corresponding middle terminal iidentification of the nonopiate random access group
List.Group center terminal broadcast selects the terminal identification list and corresponding power back-off factors of nonopiate random access group,
After non-group of center terminal receives above-mentioned broadcast message, check the terminal iidentification of oneself whether in above-mentioned terminal identification list,
If receiving the channel resource information for uplink that network-side is sent.
It should be noted that above-mentioned min (nNOMA- 1, nf) indicate to take nNOMA- 1 and nfBetween minimum value, nNOMAIndicate non-
Orthogonal multiple access random access mode carries out the maximum number of user for allowing to access when random access.
In a kind of relatively good implementation of the application, it is corresponding in nonopiate random access group G belonging to it to obtain terminal
Power back-off factors when, can first judge whether terminal is group center terminal in nonopiate random access group G, if be it is non-just
Hand over random access group G in group center terminal, it is determined that the terminal in nonopiate random access group G corresponding back-off because
Son is 0, if not the group center terminal in nonopiate random access group G, then according to the group center in nonopiate random access group G
The mark of power back-off factors set and above-mentioned terminal that terminal is sent with broadcast mode, obtains above-mentioned terminal in Random Orthogonal
Corresponding power back-off factors in access group G.
S302: according to downlink path loss, expected power, the network-side of reaching of network-side for the physical uplink letter of terminal distribution
Road resource, power back-off factors and the corresponding back-off step-length of nonopiate random access group G determine that network-side is terminal distribution
Physical uplink channel data sending power.
Specifically, can determine the data hair that network-side is the physical uplink channel of terminal distribution according to following formula
Send power Pt,
Pt=PPUSCH,c- λ ρ,
Wherein, λ indicates that power back-off factors obtained, ρ indicate the corresponding back-off step of nonopiate random access group G
It is long；PPUSCH,cIt is that power, network-side expected arrival rate, net are sent according to terminal maximum for the transmission power of orthogonal random access
Network end is that the physical uplink channel resource block number of terminal distribution and downlink path loss determine.
In a kind of specific implementation of the application, P can be calculated according to following formulaPUSCH,c,
PPUSCH,c=min { Pmax, Pu+10log10(Mu)+w*PL}
Wherein, min { a, b } indicates to take the minimum value in a and b, PmaxIndicate that terminal maximum sends power, Pu indicates network
For expected power, the Mu expression network-side of reaching in end for the physical uplink channel resource block number of terminal distribution, PL indicates downlink path
Loss, w is Dynamic gene.
Optionally, above-mentioned back-off step-length can be preset numerical value, be also possible to network-side with broadcast mode
The numerical value sent to terminal, the application are defined not to this.
S303: according to identified data sending power, by physical uplink channel that network-side is terminal distribution to net
Network end sends communication data.
Since the corresponding power back-off factors of terminal each in nonopiate random access group G are different, and for it is nonopiate with
Back-off step-length is the same for each terminal in machine access group G, so, the data of each terminal calculated
It is different to send power, such network-side, can be according to different data sending powers with higher after receiving communication data
Accuracy rate separates the received communication data of institute, and then network-side again decodes the communication data after separation.
S304: the feedback information for decoding result that network-side is sent is received.
As seen from the above, in scheme provided in this embodiment, terminal obtains right in nonopiate random access group G belonging to it
After the power back-off factors and back-off step-length answered, it is according to downlink path loss, the expected arrival power of network-side, network-side
Physical uplink channel resource, power back-off factors and the corresponding power of the nonopiate random access group G of the terminal distribution
Rollback step-length determines that the network-side is the data sending power of the physical uplink channel of the terminal distribution, and to determine
Data sending power to network-side send communication data.Since the power back-off factors of each user are different, what terminal was sent
The arrival power that communication data reaches network-side is different, and network-side is after receiving communication data, according to different arrival power
It is deleted using serial interference and the communication data of multiple users is subjected to interference deletion, decoding, and decoding result is fed back into terminal.
Therefore, when carrying out data transmission using scheme provided in this embodiment, it can be improved network-side and eliminate the accurate of inter-user interference
Rate improves the probability of network side equipment correct decoding.
It is corresponding with above-mentioned application and the data transmission method based on non-orthogonal multiple mode of terminal, the embodiment of the present application
Additionally provide a kind of data transmission method based on non-orthogonal multiple mode applied to network-side.
Fig. 4 is a kind of process signal of data transmission method based on non-orthogonal multiple mode provided by the embodiments of the present application
Figure, this method are applied to network-side, comprising:
S401: receiving each terminal in nonopiate random access group G by network-side is in nonopiate random access group G
The physical uplink channel of terminal distribution sends the communication data that power is sent with different data.
Wherein, data sending power used by each terminal in above-mentioned nonopiate random access group G can be basis
Expected power, the network-side of reaching of downlink path loss, network-side is the physical uplink channel resource of terminal distribution and the hair that retracts
The determination of the information such as power is sent to obtain.
Specifically, above-mentioned rollback transmission power can be and be corresponded to according to power back-off factors and nonopiate random access group G
Back-off step size computation obtain.
In a kind of optional implementation of the application, it according to following formula, can determine that the data of terminal send function
Rate Pt,
Pt=PPUSCH,c- λ ρ,
Wherein, λ indicates that power back-off factors obtained, ρ indicate the corresponding back-off step of nonopiate random access group G
It is long；PPUSCH,cFor the transmission power of orthogonal random access, power, network-side expected arrival rate, network-side are sent by terminal maximum
For terminal distribution physical uplink channel resource block number and downlink path loss determine.
Optionally, above-mentioned back-off step-length can be preset numerical value, be also possible to network-side with broadcast mode
The numerical value sent to terminal, the application are defined not to this.
In a kind of relatively good implementation of the application, terminal corresponding function in nonopiate random access group G belonging to it
Rate back-off factor can obtain in the following manner, and terminal can first judge whether terminal is in nonopiate random access group G
Group center terminal, if the group center terminal in nonopiate random access group G, it is determined that the terminal is in nonopiate random access group
Corresponding power back-off factors are 0 in G, if not the group center terminal in nonopiate random access group G, then according to it is nonopiate with
The mark of power back-off factors set and above-mentioned terminal that group center terminal in machine access group G is sent with broadcast mode, is obtained
Obtain above-mentioned terminal corresponding power back-off factors in Random Orthogonal access group G.
S402: it according to the different power back-off factors of each terminal in nonopiate random access group G, is deleted using serial interference
Except the communication data for separating and decoding different terminals.
S403: the terminal feedback decoding result into nonopiate random access group G.
As seen from the above, in technical solution provided in this embodiment, since terminal is to the communication data that network-side is sent
Power is sent with different data and is sent to network-side, and network-side can send the data sending power of communication data according to terminal
A data separating is carried out to the received communication data of institute, since above-mentioned data sending power is different, so, network-side can with compared with
High accuracy rate separates communication data, and then can be improved network-side and eliminate the accurate of inter-user interference by interference cancellation techniques
The probability of communication data transmitted by rate and network-side correct decoding terminal.
Corresponding with the above-mentioned data transmission method based on non-orthogonal multiple mode, the embodiment of the present application also provides one kind
Data transmission device based on non-orthogonal multiple mode.
Fig. 5 is a kind of structural representation of the data transmission device based on non-orthogonal multiple mode provided by the embodiments of the present application
Figure, the device are applied to terminal, comprising:
Power back-off factors obtain module 501, right in nonopiate random access group G belonging to it for obtaining the terminal
The power back-off factors answered, wherein the power back-off factors are the parameter for indicating back-off size, described nonopiate
The corresponding power back-off factors of each terminal are different in random access group G；
Data sending power determining module 502, for according to downlink path loss, the expected arrival power, network of network-side
End is the physical uplink channel resource of the terminal distribution, power back-off factors and nonopiate G pairs of random access group described
The back-off step-length answered determines that the network-side is the data sending power of the physical uplink channel of the terminal distribution；
Communication data sending module 503, for being the terminal by network-side according to identified data sending power
The physical uplink channel of distribution sends communication data to the network-side；
Feedback information receiving module 504, the feedback information for decoding result sent for receiving the network-side.
Specifically, the power back-off factors acquisition module 501 may include:
Group center terminal judging submodule, for judging whether the terminal is in the nonopiate random access group G
Group center terminal；
Power back-off factors determine submodule, are yes for the judging result in described group of center terminal judging submodule
In the case of, determine that the terminal corresponding power back-off factors in the nonopiate random access group G are 0；
Power back-off factors obtain submodule, for be no in the judging result of described group of center terminal judging submodule
In the case of, the power back-off factors collection that is sent according to the group center terminal in the nonopiate random access group G with broadcast mode
The mark of conjunction and the terminal, obtains the terminal corresponding power back-off factors in the nonopiate random access group G.
Specifically, the data sending power determining module 502, is specifically used for determining the net according to following formula
Network end is the data sending power P of the physical uplink channel of the terminal distributiont,
Pt=PPUSCH,c- λ ρ,
Wherein, λ indicates that power back-off factors obtained, ρ indicate that the corresponding power of the nonopiate random access group G returns
Regress length；PPUSCH,cFor the transmission power of orthogonal random access, power, network-side expected arrival rate, net are sent by terminal maximum
Network end is that the physical uplink channel resource block number of the terminal distribution and downlink path loss determine.
Specifically, the back-off step-length can be preset numerical value；Or
It can be the numerical value that the network-side is sent with broadcast mode to the terminal.
As seen from the above, in scheme provided in this embodiment, terminal obtains right in nonopiate random access group G belonging to it
After the power back-off factors and back-off step-length answered, it is according to downlink path loss, the expected arrival power of network-side, network-side
Physical uplink channel resource, power back-off factors and the corresponding power of the nonopiate random access group G of the terminal distribution
Rollback step-length determines that the network-side is the data sending power of the physical uplink channel of the terminal distribution, and to determine
Data sending power to network-side send communication data.Since the power back-off factors of each user are different, what terminal was sent
The arrival power that communication data reaches network-side is different, and network-side is after receiving communication data, according to different arrival power
It is deleted using serial interference and the communication data of multiple users is subjected to interference deletion, decoding, and decoding result is fed back into terminal.
Therefore, when carrying out data transmission using scheme provided in this embodiment, it can be improved network-side and eliminate the accurate of inter-user interference
Rate improves the probability of network side equipment correct decoding.
It is corresponding with the above-mentioned data transmission device based on non-orthogonal multiple mode of terminal that is applied to, the embodiment of the present application
Additionally provide a kind of data transmission device based on non-orthogonal multiple mode applied to network-side.
Fig. 6 is a kind of structural representation of the data transmission device based on non-orthogonal multiple mode provided by the embodiments of the present application
Figure, the device are applied to network-side, comprising:
Communication data receiving module 601 passes through the network for receiving each terminal in nonopiate random access group G
End is the communication that the physical uplink channel of terminal distribution in the nonopiate random access group G sends that power is sent with different data
Data；
Communication data decoding module 602, for the power different according to each terminal in the nonopiate random access group G
Back-off factor deletes the communication data for separating and decoding different terminals using serial interference；
Result feedback module 603 is decoded, for the terminal feedback decoding result into the nonopiate random access group G.
As seen from the above, in technical solution provided in this embodiment, since terminal is to the communication data that network-side is sent
Power is sent with different data and is sent to network-side, and network-side can send the data sending power of communication data according to terminal
A data separating is carried out to the received communication data of institute, since above-mentioned data sending power is different, so, network-side can with compared with
High accuracy rate separates communication data, and then can be improved network-side and eliminate the accurate of inter-user interference by interference cancellation techniques
The probability of communication data transmitted by rate and network-side correct decoding terminal.
For system, Installation practice, since it is substantially similar to the method embodiment, so the comparison of description is simple
Single, the relevent part can refer to the partial explaination of embodiments of method.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Those of ordinary skill in the art will appreciate that all or part of the steps in realization above method embodiment is can
It is completed with instructing relevant hardware by program, the program can store in computer-readable storage medium,
The storage medium designated herein obtained, such as: ROM/RAM, magnetic disk, CD.
The foregoing is merely the preferred embodiments of the application, are not intended to limit the protection scope of the application.It is all
Any modification, equivalent replacement, improvement and so within spirit herein and principle are all contained in the protection scope of the application
It is interior.
Claims (8)
1. a kind of data transmission method based on non-orthogonal multiple mode is applied to terminal, which is characterized in that the method packet
It includes:
Obtain the terminal corresponding power back-off factors in nonopiate random access group G belonging to it, wherein the power returns
Moving back the factor is parameter for indicating back-off size, the corresponding power of each terminal in the nonopiate random access group G
Back-off factor is different；
According to downlink path loss, expected power, the network-side of reaching of network-side for the physical uplink channel money of the terminal distribution
Source, the power back-off factors and the corresponding back-off step-length of the nonopiate random access group G, determine that the network-side is
The data sending power of the physical uplink channel of the terminal distribution, comprising:
According to following formula, determine that the network-side is the data sending power P of the physical uplink channel of the terminal distributiont,
Pt=PPUSCH, c- λ ρ,
Wherein, λ indicates that power back-off factors obtained, ρ indicate the corresponding back-off step of the nonopiate random access group G
It is long；PPUSCH,cFor the transmission power of orthogonal random access, power, network-side expected arrival rate, network-side are sent by terminal maximum
For the terminal distribution physical uplink channel resource block number and downlink path loss determine；
According to identified data sending power, by physical uplink channel that network-side is the terminal distribution to the network
End sends communication data；
Receive the feedback information for decoding result that the network-side is sent.
2. being connect at random the method according to claim 1, wherein the acquisition terminal is nonopiate belonging to it
Enter corresponding power back-off factors in group G, comprising:
Judge whether the terminal is group center terminal in the nonopiate random access group G；
If it has, then determining that the terminal corresponding power back-off factors in the nonopiate random access group G are 0；
If it has not, the back-off then sent according to the group center terminal in the nonopiate random access group G with broadcast mode
The mark of factor set and the terminal obtains the terminal corresponding power in the nonopiate random access group G and returns
Move back the factor.
3. method described in any one of -2 according to claim 1, which is characterized in that the back-off step-length,
For preset numerical value；Or
The numerical value sent with broadcast mode to the terminal for the network-side.
4. a kind of data transmission method based on non-orthogonal multiple mode is applied to network-side, which is characterized in that the method packet
It includes:
It is in the nonopiate random access group G that each terminal in nonopiate random access group G, which is received, by the network-side
The physical uplink channel of terminal distribution sends the communication data that power is sent with different data；Wherein, the data sending power
It is determined according to following formula:
Pt=PPUSCH, c- λ ρ,
Wherein, PtIndicate that network-side is the data sending power of the physical uplink channel of the terminal distribution, λ indicates obtained
Power back-off factors, ρ indicate the corresponding back-off step-length of the nonopiate random access group G；PPUSCH,cIt is connect for Random Orthogonal
The transmission power entered, the expected arrival rate of power, network-side is sent by terminal maximum, network-side be the terminal distribution physically
What row channel resource block number and downlink path loss determined；
According to the different power back-off factors of each terminal in the nonopiate random access group G, is deleted and divided using serial interference
From and decode the communication datas of different terminals；
Terminal feedback decoding result into the nonopiate random access group G.
5. a kind of data transmission device based on non-orthogonal multiple mode is applied to terminal, which is characterized in that described device packet
It includes:
Power back-off factors obtain module, for obtaining the terminal corresponding function in nonopiate random access group G belonging to it
Rate back-off factor, wherein the power back-off factors are parameter for indicating back-off size, described nonopiate to connect at random
It is different to enter the corresponding power back-off factors of each terminal in group G；
Data sending power determining module, for being described according to downlink path loss, the expected arrival power of network-side, network-side
Physical uplink channel resource, the power back-off factors and the corresponding power of the nonopiate random access group G of terminal distribution
Rollback step-length determines that the network-side is the data sending power of the physical uplink channel of the terminal distribution, comprising:
According to following formula, determine that the network-side is the data sending power P of the physical uplink channel of the terminal distributiont,
Pt=PPUSCH, c- λ ρ,
Wherein, λ indicates that power back-off factors obtained, ρ indicate the corresponding back-off step of the nonopiate random access group G
It is long；PPUSCH,cFor the transmission power of orthogonal random access, power, network-side expected arrival rate, network-side are sent by terminal maximum
For the terminal distribution physical uplink channel resource block number and downlink path loss determine；
Communication data sending module, for being the terminal distribution by network-side according to identified data sending power
Physical uplink channel sends communication data to the network-side；
Feedback information receiving module, the feedback information for decoding result sent for receiving the network-side.
6. device according to claim 5, which is characterized in that the power back-off factors obtain module, comprising:
Group center terminal judging submodule, for judging whether the terminal is in group in the nonopiate random access group G
Heart terminal；
Power back-off factors determine submodule, are the case where being for the judging result in described group of center terminal judging submodule
Under, determine that the terminal corresponding power back-off factors in the nonopiate random access group G are 0；
Power back-off factors obtain submodule, the situation for being no in the judging result of described group of center terminal judging submodule
Under, according to the group center terminal in the nonopiate random access group G with power back-off factors set that broadcast mode is sent with
And the mark of the terminal, obtain the terminal corresponding power back-off factors in the nonopiate random access group G.
7. a kind of data transmission device based on non-orthogonal multiple mode is applied to network-side, which is characterized in that described device packet
It includes:
Communication data receiving module is institute for receiving each terminal in nonopiate random access group G by the network-side
It states the physical uplink channel of terminal distribution in nonopiate random access group G and the communication data that power is sent is sent with different data；
Wherein, the data sending power is determined according to following formula:
Pt=PPUSCH, c- λ ρ,
Wherein, PtIndicate that network-side is the data sending power of the physical uplink channel of the terminal distribution, λ indicates obtained
Power back-off factors, ρ indicate the corresponding back-off step-length of the nonopiate random access group G；PPUSCH,cIt is connect for Random Orthogonal
The transmission power entered, the expected arrival rate of power, network-side is sent by terminal maximum, network-side be the terminal distribution physically
What row channel resource block number and downlink path loss determined；
Communication data decoding module, for according to the different back-off of each terminal in the nonopiate random access group G because
Son deletes the communication data for separating and decoding different terminals using serial interference；
Result feedback module is decoded, for the terminal feedback decoding result into the nonopiate random access group G.
8. a kind of data transmission system based on non-orthogonal multiple mode, which is characterized in that the system comprises:
Using the terminal of any one of claim 5-6 described device and the network-side of application claim 7 described device.
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| PCT/CN2016/105710 WO2017097091A1 (en) | 2015-12-07 | 2016-11-14 | Data transmission method, apparatus, and system based on non-orthogonal multi-access mode |
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| CN105553608B (en) * | 2015-12-07 | 2019-03-01 | 北京邮电大学 | A kind of data transmission method based on non-orthogonal multiple mode, apparatus and system |
| CN107770854A (en) | 2016-08-19 | 2018-03-06 | 株式会社Ntt都科摩 | For controlling the method, mobile station and base station of transmission power |
| US10397032B2 (en) * | 2016-08-22 | 2019-08-27 | Qualcomm Incorporated | Energy determinations for multi-user superposition transmissions |
| CN106792727B (en) * | 2016-09-30 | 2020-06-05 | 北京紫光展锐通信技术有限公司 | Uplink unauthorized non-orthogonal multiple access method, device, base station and user terminal |
| CN108024372B (en) * | 2016-11-02 | 2020-06-02 | 华为技术有限公司 | Data processing method, base station and terminal |
| CN106936532B (en) * | 2017-02-24 | 2018-11-23 | 兰州大学 | A kind of power domain non-orthogonal multiple access interpretation method |
| CN106658695B (en) * | 2017-03-07 | 2019-09-24 | 重庆邮电大学 | A kind of power distribution system and power distribution method applied in NOMA |
| CN108260108B (en) * | 2018-01-16 | 2020-11-17 | 重庆邮电大学 | Non-orthogonal narrowband Internet of things NB-IoT random access method |
| CN110784292B (en) * | 2018-07-31 | 2021-10-01 | 华为技术有限公司 | Method and device for processing reference signal |
| CN111278099B (en) * | 2019-01-18 | 2021-04-30 | 维沃移动通信有限公司 | Power control method, terminal and network side equipment |
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| CN103298094A (en) * | 2012-02-28 | 2013-09-11 | 株式会社Ntt都科摩 | Power distribution method and station |
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| CN104158631B (en) * | 2014-08-27 | 2018-04-10 | 北京邮电大学 | The launching technique and device of a kind of data flow |
| CN105553608B (en) * | 2015-12-07 | 2019-03-01 | 北京邮电大学 | A kind of data transmission method based on non-orthogonal multiple mode, apparatus and system |
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