CN105790890A - Non-orthogonal multiple-access data transmission method and apparatus - Google Patents
Non-orthogonal multiple-access data transmission method and apparatus Download PDFInfo
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- CN105790890A CN105790890A CN201610244985.1A CN201610244985A CN105790890A CN 105790890 A CN105790890 A CN 105790890A CN 201610244985 A CN201610244985 A CN 201610244985A CN 105790890 A CN105790890 A CN 105790890A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0041—Arrangements at the transmitter end
- H04L1/0042—Encoding specially adapted to other signal generation operation, e.g. in order to reduce transmit distortions, jitter, or to improve signal shape
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0047—Decoding adapted to other signal detection operation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0037—Inter-user or inter-terminal allocation
-
- 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
- H04W16/14—Spectrum sharing arrangements between different networks
Abstract
The invention provides a non-orthogonal multiple-access data transmission method and apparatus. A base-station terminal employs C-RNTI of nearby users to conduct scrambling process on CRC of DCI of the nearby users to obtain a first CRC, and the C-RNTI of far-away users matching with the nearby users is employed to conduct scrambling process on the first CRC to obtain a second CRC. The base-station terminal sends DCI with the second CRC to the nearby users. The nearby user terminal employs the C-RNTI of the nearby users and C-RNTI in a candidate far-away user set configured by upper-level RRC signaling to conduct descrambling twice in order to successful descramble. A nearby user can determine the unique matching far-away user by employ the C-RNTI of the far-away user through successful descrambling, and obtain the DCI of the far-away user according to the C-RNTI of the far-away user. During non-orthogonal multiple-access data transmission, nearby users do not carry DCI of far-away users, thereby minimizing DCI consumption of the nearby users.
Description
Technical field
The present invention relates to communication technology, particularly relate to a kind of non-orthogonal multiple and access (Non-orthogonal
Multiple Access, is called for short: NOMA) method and apparatus.
Background technology
Apply non-orthogonal multiple to access in multi-user's superposed transmission to increase throughput of system and carry
Spectral efficient.NOMA allows multiple users to be realized in identical space layer by the multiplexing of power domain
Sharing of time and frequency resource, wherein, nearly user need to obtain the auxiliary information of remote user thus
The superposed signal received is recovered and removed the signal of remote user, more remaining information is carried out
Demodulation and decoding, to obtain the signal of nearly user.
In correlation technique, from superposed signal, recover and remove the signal of remote user for nearly user, need
Making nearly user know the auxiliary information of remote user, main method is under base station is sent to nearly user
(Downlink Control Information, is called for short row control information: carry remote user's in DCI)
DCI。
But, use such scheme, when non-orthogonal multiple accesses data transmission, nearly user DCI carries
Information more, expense is bigger.
Summary of the invention
The present invention provides a kind of non-orthogonal multiple to access data transmission method and device, reduces nearly user
DCI expense.
The present invention provides a kind of non-orthogonal multiple to access data transmission method, including:
Use Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (the Cell Radio Network Temporary of nearly user
Identifier, is called for short: C-RNTI) the down link control information DCI additional cycles to described nearly user
(Cyclic Redundancy Code is called for short: CRC) carry out scrambling process, obtain a CRC redundant code；
The C-RNTI using the remote user of pairing carries out scrambling process to a described CRC, obtains second
CRC, the remote user of described pairing is to share the use of downgoing time, frequency and space resources with described nearly user
Family；
Send the DCI of the nearly user of additional 2nd CRC.
In an embodiment of the present invention, upper strata radio resource control layer (Radio Resource is passed through in base station
Control, is called for short: RRC) signaling sends and the to be selected remote use of described nearly user pairing to described nearly user
The C-RNTI set at family.
In an embodiment of the present invention, base station end uses the C-RNTI of described nearly user to add its DCI
CRC carry out scrambling process, obtain a CRC, including:
The corresponding bits of the additional CRC of DCI of described nearly user is carried out different by the C-RNTI using nearly user
Or process, obtain a CRC；
The C-RNTI using the remote user of pairing carries out scrambling process to a described CRC, obtains second
CRC, including:
The C-RNTI using the remote user of pairing carries out XOR process to the corresponding bits of a described CRC,
Obtain the 2nd CRC.
In an embodiment of the present invention, set the user that public search space or remote user are overlapping with nearly user
It is standby that (User Equipment, is called for short: UE) specific search volume carries the DCI of described remote user.
A kind of non-orthogonal multiple that the present invention provides accesses data transmission method, including:
Use the C-RNTI of the nearly user DCI to receiving to carry out scramble process, obtain the first descrambling
CRC；
Use and each C-RNTI in the C-RNTI set of the to be selected remote user of described nearly user pairing
Described first descrambling CRC is carried out scramble process, until obtaining DCI and the acquisition of described nearly user
Descramble the C-RNTI of the remote user successfully used；
According to the C-RNTI of the described remote user descrambling and successfully being used, obtain and described nearly user pairing
The DCI of remote user.
In an embodiment of the present invention, nearly user receive upper strata RRC signaling send match with it to be selected far
The C-RNTI set of user.
In an embodiment of the present invention, nearly user is according to the described remote user's descrambling and successfully being used
C-RNTI, obtains the DCI of the remote user matched with described nearly user, including:
In the specific search volume of UE that public search space or remote user are overlapping with nearly user, according to described
Descramble the C-RNTI of the remote user successfully used, the remote user's that acquisition is matched with described nearly user
DCI。
The present invention provides a kind of non-orthogonal multiple to access data transmission device, including:
Scrambling module, uses the C-RNTI additional CRC of DCI to described nearly user of nearly user for base station
Carry out scrambling process, obtain a CRC；
Described scrambling module, is additionally operable to use the C-RNTI of the remote user of pairing to carry out a described CRC
Scrambling process, obtain the 2nd CRC, the remote user of described pairing for described nearly user share downgoing time,
Frequency and the user of space resources；
Sending module, for sending the DCI of the nearly user of additional 2nd CRC.
In one embodiment of this invention, described sending module be additionally operable to logical base station cross upper strata RRC signaling to
Described nearly user sends the C-RNTI set of the to be selected remote user matched with it.
The present invention provides a kind of non-orthogonal multiple to access data transmission device, including:
Descrambling module, uses the C-RNTI of self DCI to receiving to carry out at descrambling for nearly user
Reason, obtains the first descrambling CRC；
Described descrambling module, is additionally operable to use the C-RNTI of the to be selected remote user with described nearly user pairing
Each C-RNTI in set carries out scramble process, until acquisition is described closely to described first descrambling CRC
The DCI of user and acquisition descramble the C-RNTI of the remote user successfully used；
Acquisition module, for the C-RNTI according to the described remote user descrambling and successfully being used, obtains and institute
State the DCI of the remote user of nearly user pairing.
The non-orthogonal multiple that the present invention provides accesses data transmission method and device, is used near by transmitting terminal
The C-RNTI of user carries out scrambling process to the CRC of the DCI of nearly user, obtains a CRC, then
Use the C-RNTI with the remote user of nearly user pairing that the oneth CRC is carried out scrambling process, obtain second
CRC, sends the DCI of the nearly user of additional 2nd CRC, owing to transmitting terminal uses the C-RNTI of nearly user
With the C-RNTI of remote user, the CRC of the DCI of nearly user is carried out twice scrambling, therefore, received
End needs to use the C-RNTI of nearly user and the C-RNTI of remote user to carry out twice descrambling, could descramble into
Merit, it is thus possible to by the C-RNTI descrambling the remote user successfully used, uniquely determine and nearly user
The remote user of pairing, and then the DCI of remote user is obtained according to the C-RNTI of remote user, it is therefore not necessary to
The DCI of remote user is carried in the DCI information of nearly user, thus, decrease the DCI expense of nearly user.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below,
Accompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic flow sheet that non-orthogonal multiple of the present invention accesses data transmission method embodiment one；
Fig. 2 is the schematic flow sheet that non-orthogonal multiple of the present invention accesses data transmission method embodiment two；
Fig. 3 is that non-orthogonal multiple of the present invention accesses the signal of CRC scrambling in data transmission method embodiment two
Figure；
Fig. 4 is that non-orthogonal multiple of the present invention accesses a CRC scrambling in data transmission method embodiment two
Schematic diagram；
Fig. 5 is closely to use in non-orthogonal multiple of the present invention access data transmission method embodiment one and embodiment two
Family obtains the schematic diagram of the DCI of remote user by the C-RNTI of remote user；
Fig. 6 is the schematic flow sheet that non-orthogonal multiple of the present invention accesses data transmission method embodiment three；
Fig. 7 is that non-orthogonal multiple of the present invention accesses the signal of CRC descrambling in data transmission method embodiment three
Figure；
Fig. 8 is that non-orthogonal multiple of the present invention accesses a CRC descrambling in data transmission method embodiment three
Schematic diagram；
Fig. 9 is the structural representation that non-orthogonal multiple of the present invention accesses data transmission device embodiment one；
Figure 10 is the structural representation that non-orthogonal multiple of the present invention accesses data transmission device embodiment two.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
Term " first " in description and claims of this specification and above-mentioned accompanying drawing, " second ",
(if present) such as " the 3rd " " the 4 " is for distinguishing similar object, without being used for retouching
State specific order or precedence.Should be appreciated that the data of so use in the appropriate case can be mutual
Change, in order to embodiments of the invention described herein such as can be with except here illustrating or describing
Order beyond those is implemented.Additionally, term " includes " and " having " and their any change
Shape, it is intended that cover non-exclusive comprising, such as, contain series of steps or the process of unit,
Method, system, product or equipment are not necessarily limited to those steps or the unit clearly listed, but can
Including that the most clearly list or for these processes, method, product or equipment intrinsic other step
Rapid or unit.
Fig. 1 is the schematic flow sheet that non-orthogonal multiple of the present invention accesses data transmission method embodiment one.This
Embodiment is performed by transmitting terminal, the transmission equipment of transmitting terminal can be evolved base station (Evolved Node B,
It is called for short: eNB) etc., as it is shown in figure 1, the method for the present embodiment is as follows:
S101: use the C-RNTI of nearly user that the additional CRC of DCI of nearly user is carried out scrambling process,
Obtain a CRC.
Specifically, each Physical Downlink Control Channel of LTE system (Physical Downlink Control
Channel, is called for short: PDCCH) comprise the CRC check bit of 16, at transmitting terminal, sends equipment
The additional CRC of the DCI to being sent to nearly user of the C-RNTI according to the nearly user of receiving terminal is carried out at scrambling
Reason, obtains a CRC.
S102: use the C-RNTI of the remote user of pairing that the oneth CRC is carried out scrambling process, obtain second
CRC。
Wherein, the remote user that matches is to share the use of downgoing time, frequency and space resources with described nearly user
Family.Specifically, transmission equipment uses the C-RNTI with the remote user of nearly user pairing to obtain S101
Oneth CRC scrambles again, obtains the 2nd CRC.
S103: send the DCI of the nearly user of additional 2nd CRC.
Specifically, in S103 possible implementation, transmitting terminal sends nearly user respectively and uses with remote
The DCI at family, wherein, the DCI of remote user is at public search space or the UE of far and near user's overlapping portion
Specific search volume sends.
Alternatively, in above-described embodiment one, transmitting terminal is sent out to described nearly user by upper strata RRC signaling
The C-RNTI with the to be selected remote user of described nearly user pairing is sent to gather.
Specifically, transmitting terminal base station generates a set according to the remote user of the optional pairing of nearly user, set
Inside containing the C-RNTI of these remote users to be selected, this set gives near using by upper strata RRC signal deployment
Family.Wherein, RRC signaling processes the information controlling plane between UE and base station, and RRC connects wireless money
The distribution in source, configure and discharge.RRC connects necessary control plane and the Radio Resource of user plane,
All it is responsible for distribution by RRC.RRC for having built up connects, and RRC can also reconfigure wireless
Resource.
The present embodiment, uses the C-RNTI of nearly user to enter the CRC of the DCI of nearly user by transmitting terminal
Row scrambling processes, and obtains a CRC, then uses the C-RNTI of remote user with nearly user pairing to the
One CRC carries out scrambling process, obtains the 2nd CRC, sends the DCI of the nearly user of additional 2nd CRC,
Owing to transmitting terminal uses the C-RNTI of the C-RNTI of nearly user and remote user to the DCI's of nearly user
CRC has carried out twice scrambling, therefore, needs to use the C-RNTI of nearly user and remote user at receiving terminal
C-RNTI carry out twice descrambling, could descramble successfully, it is thus possible to successfully used by descrambling
The C-RNTI of remote user, uniquely determine the remote user matched with nearly user, and then according to remote user's
C-RNTI obtains the DCI of remote user.And owing to nearly user not carrying the DCI of remote user, this enforcement
Example enhances the extensibility of scheme when multi-user's superposed transmission scheme is different, receiver uses different.
Make when non-orthogonal multiple accesses data transmission, nearly user DCI not to carry the DCI of remote user simultaneously,
Reduce nearly user's DCI expense.
Fig. 2 is the schematic flow sheet that non-orthogonal multiple of the present invention accesses data transmission method embodiment two.This
Embodiment is the alternatively possible implementation of embodiment one, as in figure 2 it is shown, the method for the present embodiment
As follows:
S201: use the C-RNTI of the nearly user corresponding bits to the additional CRC of DCI of described nearly user
Carry out XOR process, obtain a CRC.
As it is shown on figure 3, Fig. 3 is non-orthogonal multiple of the present invention accesses CRC in data transmission method embodiment two
The schematic diagram of scrambling mode.Specifically, the C-RNTI of the nearly user of such as transmitting terminal comprises 16 bit letters
Breath, can be expressed as Xn0,Xn1,…,Xn15, transmitting terminal is utilized respectively Xn0,Xn1,…,Xn15Each ratio
The special position CRC bit P to nearly user's DCI corresponding bits position0,P1,…,P15Carry out XOR calculating, obtain
A CRC:B after scrambling0,B1,…,B15。
S202: use the C-RNTI of pairing remote user that the corresponding bits of a described CRC is carried out XOR
Process, obtain the 2nd CRC.
As shown in Figure 4, Fig. 4 is that non-orthogonal multiple of the present invention accesses in data transmission method embodiment two the
The schematic diagram of one CRC scrambling.Specifically, such as transmitting terminal and nearly user match the C-RNTI of remote user
Comprise 16 bit informations, X can be expressed asf0,Xf1,…,Xf15, transmitting terminal is utilized respectively
Xf0,Xf1,…,Xf15Each bit corresponding bits position of a CRC that S201 is obtained
CRC bit B0,B1,…,B15Carry out XOR calculating, the 2nd CRC:C after being scrambled0,C1,…,C15。
Wherein, transmitting terminal can generate the C-RNTI set of the remote user matched with nearly user, because of channel shape
Condition typically changes not quite, need not use upper strata RRC signaling to specify pairing during transmitting terminal pairing every time
Remote user.Meanwhile, at receiving terminal, nearly user uses self C-RNTI and remote user C-RNTI to be selected
Twice descrambling that in set, each C-RNTI is carried out, twice descrambling the most i.e. can get remote user's
C-RNTI.The most only when current channel conditions generation large change, pairing set is just carried out by transmitting terminal
Update.
S203: send the DCI of the nearly user of additional 2nd CRC.
The present embodiment, matches remote user with the C-RNTI of nearly user with nearly user successively by transmitting terminal
C-RNTI the additional CRC of DCI of described nearly user is carried out XOR process, obtain and send additional the
The DCI of the nearly user of two CRC.In the present invention, CRC XOR scrambling mode increases to nearly sending and receiving devices
The comparison of strong operation simply bit levels or XOR, increase answering of nearly receiver user hardly
Miscellaneous degree, and nearly user DCI does not carry the DCI of remote user when non-orthogonal multiple accesses data transmission,
Reduce nearly user's DCI expense.
In the various embodiments described above, further, as it is shown in figure 5, Fig. 5 is non-orthogonal multiple of the present invention
Access nearly user in data transmission method and searched for showing of the DCI of remote user by the C-RNTI of remote user
Be intended to, in figure, L is downlink, and S is public search space, D1 be remote user DCI, D2 be near
User DCI, transmitting terminal is empty in the specific search of UE that public search space or remote user are overlapping with nearly user
Between carry the DCI of described remote user.
Specifically, transmitting terminal can hold in the specific search volume of UE that remote user and nearly user are overlapped
Carry the DCI of remote user, or, do not affecting paging, response reception window size, Broadcasting Control
BCCH) etc. (Broadcast Control Channel, is called for short channel: cell level controls the transmission of information
Time, in the case of public space still has remaining resource, transmitting terminal is it is contemplated that hold in public search space
Carry the DCI of remote user.
Fig. 6 is the schematic flow sheet that non-orthogonal multiple of the present invention accesses data transmission method embodiment three.This
Embodiment is performed by receiving terminal, and the reception equipment of receiving terminal can be the mobile phone of user, panel computer etc.,
As shown in Figure 6, the method for the present embodiment is as follows:
S601: use the C-RNTI of the nearly user DCI to receiving to carry out scramble process.
As it is shown in fig. 7, Fig. 7 is non-orthogonal multiple of the present invention accesses CRC in data transmission method embodiment three
The schematic diagram of descrambling.Specifically, the C-RNTI of the nearly user of such as receiving terminal comprises 16 bit informations,
X can be expressed asn0,Xn1,…,Xn15, receiving terminal is utilized respectively Xn0,Xn1,…,Xn15Each bit
CRC bit C to the DCI corresponding bits position after the scrambling received0,C1,…,C15Carry out XOR meter
Calculate, the first descrambling CRC:A after being descrambled0,A1,…,A15。
S602: use with described nearly user pairing to be selected remote user C-RNTI gather in any
C-RNTI carries out scramble process to described first descrambling CRC.
As shown in Figure 8, Fig. 8 is that non-orthogonal multiple of the present invention accesses in data transmission method embodiment three the
The schematic diagram of one CRC descrambling.Specifically, such as receiving terminal and nearly user match the C-RNTI of remote user
Comprise 16 bit informations, X can be expressed asf0,Xf1,…,Xf15, receiving terminal is utilized respectively
Xf0,Xf1,…,Xf15Each bit descrambling that S601 is obtained after the first descrambling CRC corresponding
Bit A0,A1,…,A15Carry out XOR calculating, the CRC:P after being descrambled0,P1,…,P15。
Wherein, transmitting terminal can generate the C-RNTI set of the remote user matched with nearly user, because of channel shape
Condition typically changes not quite, need not use upper strata RRC signaling to specify pairing during transmitting terminal pairing every time
Remote user.Meanwhile, at receiving terminal, nearly user uses self C-RNTI and remote user C-RNTI to be selected
In set, each C-RNTI carries out twice descrambling, and twice descrambling the most i.e. can get the C-RNTI of remote user.
The most only when current channel conditions generation large change, pairing set is just updated by transmitting terminal.
Such as: when nearly user carries out CRC descrambling to the DCI of self, by the C-RNTI of self
Being to judge that the DCI currently obtained is destined to oneself, need to choose successively in pairing set is remote
User C-RNTI carries out CRC descrambling, if descrambling successfully, then may determine that this DCI is destined to oneself
, the C-RNTI of remote user can also be obtained simultaneously.
S603: according to the C-RNTI of the described remote user descrambling and successfully being used, obtains and described nearly user
The DCI of the remote user of pairing.
Specifically, after nearly user obtains the C-RNTI of remote user, to before and after the control of search volume
(Control Channel Element, is called for short Channel Elements processed: CCE) carries out CRC descrambling and obtains remote
The DCI of user.While making nearly user obtain oneself DCI, obtain the DCI of remote user, wherein,
Configuration information is included in DCI, modulation and coding strategy (Mymova Checkin System, is called for short:
MCS), (Demodulation Reference Symbol is called for short: DMRS) etc. demodulation reference mark.
In a kind of possible implementation of the present embodiment, use the C-RNTI docking of nearly user at S601
After the DCI received carries out descrambling unsuccessfully, immediately the bit information received is abandoned different from traditional,
These failed bit informations of descrambling can temporarily be stored by the present embodiment.Remote user is obtained nearly user
C-RNTI after, stored owing to receiving DCI before, it is not necessary to re-start detection and only
The C-RNTI being required for remote user descrambles.The nearlyest user can utilize remote user after descrambling successfully
C-RNTI the bit information receiving before and storing is descrambled again, or for not yet examining
The DCI surveyed is simultaneous for the CRC of nearly user self and remote user and descrambles.
Further, nearly user receives the to be selected remote use matched with described user that upper strata RRC signaling sends
The C-RNTI set at family.
Wherein, nearly user, in order to obtain the C-RNTI information of remote user, receives upper strata RRC signaling and sends out
After the optional remote user C-RNTI set sent, the to be selected remote user's that employing is matched with described nearly user
Any C-RNTI in C-RNTI set carries out scramble process to described first descrambling CRC.This set
Give nearly user by transmitting terminal configuration concurrency, and need not update when communication every time, only working as
Just pairing set is updated during channel conditions generation large change.
Further, as it is shown in figure 5, Fig. 5 is in non-orthogonal multiple of the present invention access data transmission method
Nearly user obtains the schematic diagram of the DCI of remote user by the C-RNTI of remote user, and in figure, L is descending
Link, S is public search space, D1 be remote user DCI, D2 be nearly user DCI, nearly user is in public affairs
Common search volume or the specific search volume of UE that far user is overlapping with nearly user, descramble successfully according to described
The C-RNTI of the remote user used, obtains the DCI of the remote user matched with described nearly user.
Specifically, nearly user is after the twice descrambling success carrying out DCI, it is thus achieved that the C-RNTI of remote user,
The C-RNTI recycling remote user carries out CRC descrambling to the DCI of remote user, then can know remote user
DCI.Although but current haveing a problem in that but nearly user obtains the C-RNTI of remote user do not knows
The search volume of the remote user in road, therefore can be overlapped at public search space or far user and nearly user
The specific search volume of UE search for remote user DCI, if searching the DCI of remote user and descrambling successfully,
Then may determine that the DCI receiving the remote user matched with nearly user, further such that nearly user is according to far
The DCI unsuccessful demodulation of user also decodes the remote user profile of acquisition.
The present embodiment, uses C-RNTI and the pairing of described nearly user successively by the receiving terminal of nearly user
The C-RNTI of to be selected remote user carry out scramble process to receiving the additional CRC of DCI, if descrambling successfully,
While making nearly user obtain self DCI, also obtain and match the C-RNTI of remote user with it, then
Can be specific at the UE that public search space or remote user are overlapping with nearly user according to the C-RNTI of remote user
Search volume obtains matches the DCI of remote user with nearly user, and owing to accessing data at non-orthogonal multiple
Nearly user DCI does not carry during transmission the DCI of remote user, present embodiment enhances when multi-user's superposition passes
When transmission scheme is different, receiver uses different, the extensibility of scheme, reduces nearly user DCI simultaneously and opens
Pin.
Fig. 9 is the structural representation that non-orthogonal multiple of the present invention accesses data transmission device embodiment one.As
Shown in Fig. 9, this non-orthogonal multiple accesses data transmission device and includes: scrambling module 901, sending module
902.Wherein, scrambling module 901 is used for the C-RNTI the using nearly user DCI to described nearly user
Additional CRC carries out scrambling process, obtains a CRC；Scrambling module 901 is additionally operable to use pairing remote
The C-RNTI of user carries out scrambling process to a described CRC, obtains the 2nd CRC, and described pairing is remote
User for sharing the user of downgoing time and frequency resource with described nearly user；Sending module 902 is for sending out
Send the DCI of the nearly user of additional 2nd CRC.
The device of the present embodiment can be used for the technology of embodiment of the method shown in Fig. 1 or Fig. 2 that performs accordingly
Scheme, it is similar with technique effect that it realizes principle, and here is omitted.
In the above-described embodiments, further, described sending module 902 is additionally operable to be believed by upper strata RRC
The C-RNTI sent with the to be selected remote user of described nearly user pairing to described nearly user is made to gather.
Figure 10 is the structural representation that non-orthogonal multiple of the present invention accesses data transmission device embodiment two.As
Shown in Figure 10, this non-orthogonal multiple accesses data transmission device and includes: descrambling module 1001, acquisition mould
Block 1002.Wherein, descrambling module 1001 is used for the C-RNTI the using nearly user DCI to receiving
Carry out scramble process, obtain the first descrambling CRC；Descrambling module 1001 is additionally operable to use and described nearly use
Each C-RNTI in the C-RNTI set of the to be selected remote user of family pairing is to described first descrambling CRC
Carry out scramble process, until the DCI of the described nearly user of acquisition and acquisition descramble the remote use successfully used
The C-RNTI at family；Acquisition module 1002 is for according to the described remote user's descrambling and successfully being used
C-RNTI, obtains the DCI of the remote user matched with described nearly user.
The device of the present embodiment can be used for performing the technical scheme of embodiment of the method shown in Fig. 6 accordingly,
It is similar with technique effect that it realizes principle, and here is omitted.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, rather than right
It limits；Although the present invention being described in detail with reference to foregoing embodiments, this area common
Skilled artisans appreciate that the technical scheme described in foregoing embodiments still can be modified by it,
Or the most some or all of technical characteristic is carried out equivalent；And these amendments or replacement, and
The essence not making appropriate technical solution departs from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a non-orthogonal multiple accesses data transmission method, it is characterised in that including:
Use the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of the nearly user downlink to described nearly user
Control information DCI additional cyclic redundancy code CRC carries out scrambling process, obtains a CRC；
The C-RNTI using the remote user of pairing carries out scrambling process to a described CRC, obtains second
CRC, the remote user of described pairing is to share the use of downgoing time, frequency and space resources with described nearly user
Family；
Send the DCI of the nearly user of additional 2nd CRC.
Method the most according to claim 1, it is characterised in that also include:
Base station is sent and described nearly user to described nearly user by upper strata radio-resource-configuration RRC signaling
The C-RNTI set of the to be selected remote user of pairing.
Method the most according to claim 1, it is characterised in that use the C-RNTI of described nearly user
The additional CRC of DCI of described nearly user is carried out scrambling process, obtains a CRC, including:
The corresponding bits of the additional CRC of DCI of described nearly user is carried out different by the C-RNTI using nearly user
Or process, obtain a CRC；
The C-RNTI using the remote user of pairing carries out scrambling process to a described CRC, obtains second
CRC, including:
The C-RNTI using the remote user of pairing carries out XOR process to the corresponding bits of a described CRC,
Obtain the 2nd CRC.
4. according to the method described in any one of claims 1 to 3, it is characterised in that also include:
The user equipment (UE) specific search volume overlapping with nearly user at public search space or remote user is held
Carry the DCI of described remote user.
5. a non-orthogonal multiple accesses data transmission method, it is characterised in that including:
The Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of the nearly user downlink to receiving is used to control
Information DCI carries out scramble process, obtains the first descrambling Cyclic Redundancy Code CRC；
Use and each C-RNTI in the C-RNTI set of the to be selected remote user of described nearly user pairing
Described first descrambling CRC is carried out scramble process, until obtaining DCI and the acquisition of described nearly user
Descramble the C-RNTI of the remote user successfully used；
According to the C-RNTI of the described remote user descrambling and successfully being used, obtain and described nearly user pairing
The DCI of remote user.
Method the most according to claim 5, it is characterised in that also include:
Receive upper strata radio-resource-configuration RRC signaling to send and the to be selected remote user of described nearly user pairing
C-RNTI set.
Method the most according to claim 5, it is characterised in that described descramble successfully institute according to described
The C-RNTI of the remote user used, obtains the DCI of the remote user matched with described nearly user, including:
In the specific search volume of user equipment (UE) that public search space or remote user are overlapping with nearly user,
According to the C-RNTI of the described remote user descrambling and successfully being used, obtain the remote use with described nearly user pairing
The DCI at family.
8. a non-orthogonal multiple accesses data transmission device, it is characterised in that including:
Scrambling module, for use the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of nearly user to described closely
The down link control information DCI additional cyclic redundancy code CRC of user carries out scrambling process, obtains
One CRC；
Described scrambling module, is additionally operable to use the C-RNTI of the remote user of pairing to carry out a described CRC
Scrambling process, obtain the 2nd CRC, the remote user of described pairing for described nearly user share downgoing time,
Frequency and the user of space resources；
Sending module, for sending the DCI of the nearly user of additional 2nd CRC.
Device the most according to claim 8, it is characterised in that described sending module is additionally operable to pass through
Upper strata RRC signaling sends the C-RNTI of the to be selected remote user matched with described nearly user to described nearly user
Set.
10. a non-orthogonal multiple accesses data transmission device, it is characterised in that including:
Descrambling module, for using the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI of nearly user to receiving
Down link control information DCI carry out scramble process, obtain the first descrambling Cyclic Redundancy Code CRC；
Described descrambling module, is additionally operable to use the C-RNTI of the to be selected remote user with described nearly user pairing
Each C-RNTI in set carries out scramble process, until acquisition is described closely to described first descrambling CRC
The DCI of user and acquisition descramble the C-RNTI of the remote user successfully used；
Acquisition module, for the C-RNTI according to the described remote user descrambling and successfully being used, obtains and institute
State the DCI of the remote user of nearly user pairing.
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