CN105515724B - A kind of method, apparatus, system and the relevant device of the blind examination of network assistance terminal - Google Patents
A kind of method, apparatus, system and the relevant device of the blind examination of network assistance terminal Download PDFInfo
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Abstract
The embodiment of the present invention provides method, apparatus, system and the relevant device of a kind of network assistance terminal blind examination, to delete in interfering process in network assistance, reduces terminal blind examination complexity, saves terminal processes resource.This method comprises: receiving the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI and transmission mode TM of each UE in the pairing user's cluster for active user's terminal UE that network side is sent；According to the C-RNTI and TM of each UE in pairing user's cluster, network side described in blind examination is the Downlink Control Information DCI for the pairing user that the current UE is chosen from pairing user's cluster, until obtaining the DCI of the pairing user；According to the DCI of the pairing user, the interference of the pairing user is deleted.
Description
Technical field
The present invention relates to wireless communication technology field more particularly to a kind of method, apparatus of network assistance terminal blind examination, it is
System and relevant device.
Background technique
Network assistance interference deletes (NAICS) and refers to that terminal configures advanced receivers, and the interference using network side notice is believed
Breath deletes adjacent area interference in conjunction with itself blind examination to promote receptivity.
It is as depicted in figs. 1 and 2 respectively, wherein Fig. 1 is inter-cell interference schematic diagram, and Fig. 2 deletes for network assistance interference to be shown
It is intended to.Terminal is deleted to effectively interfere, and needs the interference information obtained from network side, mainly includes following two categories:
One kind is the interference information of cell level (Cell-specific), including system bandwidth, synchronizing indication and the (adjacent area Cell ID
Cell ID), CRS Ports (public reference signal port) and descending power allocation of parameters PB；Another kind of is user class
The not interference information of (User-specific), including CSI-RS (Channel Status Information Reference
Signal, channel state information reference signals), TM (Transmission Mode, transmission mode), RI (Rank
Indication, order instruction), PMI (Precoding Matrix Indicator, pre-coding matrix instruction), descending power point
With parameter PA, MCS (Modulation and Coding Scheme, modulation and coded format), DMRS Ports (demodulation reference
Signal port), DMRS VCID (demodulated reference signal virtual subdistrict mark), resource allocation type and resource allocation granularity
Deng.
And for same site or with multi-user-multiple-input and multiple-output (Multi-User Multiple-Input under cell
Multiple-Output, MU-MIMO) system, the interference information needed for network assistance interference is deleted only includes the dry of user class
Information is disturbed, and the interference information of cell level can be ignored, so that the signaling being greatly reduced needed for network assistance interference is deleted is opened
Pin.
In the interference information of user class, due to the flexibility of adjacent area scheduling, there are the information of some dynamic changes, than
Such as MCS, PMI and DMRS VCID.If these information are notified using high-level signaling, it will when encountering the interaction between base station
Prolong and the problems such as overhead, therefore general considers that terminal is allowed to pass through blind examination acquisition.And how to reduce the blind examination complexity of terminal
It is a urgent problem needed to be solved.
Summary of the invention
The embodiment of the present invention provides method, apparatus, system and the relevant device of a kind of network assistance terminal blind examination, to
Network assistance is deleted in interfering process, and terminal blind examination complexity is reduced, and saves terminal processes resource.
The embodiment of the present invention uses following technical scheme:
The embodiment of the present invention provides a kind of method of network assistance terminal blind examination, comprising:
The cell-radio network for receiving each UE in the pairing user's cluster for active user's terminal UE that network side is sent is interim
Identify C-RNTI and transmission mode TM；
According to the C-RNTI and TM of each UE in pairing user's cluster, network side described in blind examination is from pairing user's cluster
In be the Downlink Control Information DCI for the pairing user that the current UE is chosen, until obtaining the DCI of the pairing user；
According to the DCI of the pairing user, the interference of the pairing user is deleted.
Optionally, according to the C-RNTI and TM of each UE in pairing user's cluster, network side described in blind examination is matched from described
To in user's cluster being the Downlink Control Information DCI for the pairing user that the current UE is chosen, until obtaining the pairing user's
DCI is specifically included:
According to the C-RNTI and TM of each UE in pairing user's cluster, pairing user described in blind examination removes public search space
DCI except CSS, until obtaining the DCI of the pairing user.
Optionally, the transmission mode of each UE indicates the first DCI format and the second DCI format of the UE；Wherein, described
First DCI format is the corresponding DCI format of the transmission mode, and second DCI format is the rollback mould of the transmission mode
The corresponding DCI format of formula；Then
According to the C-RNTI and TM of each UE in pairing user's cluster, network side described in blind examination is from pairing user's cluster
In be the Downlink Control Information DCI for the pairing user that the current UE is chosen, until obtaining the DCI of the pairing user, specifically
Include:
Successively using the first DCI format and the 2nd DCI lattice of C-RNTI, TM instruction of each UE in pairing user's cluster
Formula, the DCI of user is matched described in blind examination, until obtaining the DCI of the pairing user；
Wherein, the use priority of first DCI format is greater than the use priority of second DCI format.
Optionally, the cell wireless network of each UE in the pairing user's cluster for active user's terminal UE that network side is sent is received
Network temporary identifier C-RNTI and transmission mode TM, specifically includes:
The pairing user's cluster for active user's terminal UE that network side is sent is received by radio resource control RRC signaling
In each UE C-RNTI and TM.
The embodiment of the present invention provides a kind of device of network assistance terminal blind examination, comprising:
Receiving unit, the cell for matching each UE in user's cluster of active user's terminal UE for receiving network side transmission
Radio network temporary identifier C-RNTI and transmission mode TM；
Blind examination unit, it is blind for the C-RNTI and TM according to each UE in the received pairing user's cluster of receiving unit
The Downlink Control Information DCI that the network side is the pairing user that the current UE is chosen from pairing user's cluster is examined, directly
To obtain it is described pairing user DCI；
Unit is deleted, the DCI of the pairing user for obtaining according to blind examination unit deletes the dry of the pairing user
It disturbs.
Optionally, the blind examination unit, is specifically used for:
According to the C-RNTI and TM of each UE in pairing user's cluster, pairing user described in blind examination removes public search space
DCI except CSS, until obtaining the DCI of the pairing user.
Optionally, the transmission mode of each UE indicates the first DCI format and the second DCI format of the UE；Wherein, described
First DCI format is the corresponding DCI format of the transmission mode, and second DCI format is the rollback mould of the transmission mode
The corresponding DCI format of formula；Then
The blind examination unit, is specifically used for:
Successively using the first DCI format and the 2nd DCI lattice of C-RNTI, TM instruction of each UE in pairing user's cluster
Formula, the DCI of user is matched described in blind examination, until obtaining the DCI of the pairing user；
Wherein, the use priority of first DCI format is greater than the use priority of second DCI format.
Optionally, the receiving unit, is specifically used for:
The pairing user's cluster for active user's terminal UE that network side is sent is received by radio resource control RRC signaling
In each UE C-RNTI and TM.
The embodiment of the present invention provides a kind of terminal, the device including the network assistance terminal blind examination that above-mentioned terminal side is implemented.
The embodiment of the present invention provides a kind of method of network assistance terminal blind examination, comprising:
The cell-radio network for sending each UE in pairing user's cluster of the current UE to active user's terminal UE is interim
Identify C-RNTI and transmission mode TM, so as to the current UE according to it is described pairing user's cluster in each UE C-RNTI and TM,
Blind examination is carried out to the DCI of the pairing user of itself, to delete the interference of the pairing user；
It is that the current UE chooses pairing user, and carries out data transmission from pairing user's cluster.
Optionally, the cell wireless network of each UE in pairing user's cluster of the current UE is sent to active user's terminal UE
Network temporary identifier C-RNTI and transmission mode TM, specifically includes:
Pairing user's cluster of the current UE is sent to active user's terminal UE by radio resource control RRC signaling
In each UE C-RNTI and TM.
The embodiment of the present invention provides a kind of device of network assistance terminal blind examination, comprising:
Transmission unit, for sending the cell for matching each UE in user's cluster of the current UE to active user's terminal UE
Radio network temporary identifier C-RNTI and transmission mode TM, so that the current UE is according to each UE in pairing user's cluster
C-RNTI and TM carries out blind examination to the DCI of the pairing user of itself, to delete the interference of the pairing user；
User's selection unit is matched, for being that the current UE chooses pairing user from pairing user's cluster, is gone forward side by side
Row data are sent.
Optionally, the transmission unit, is specifically used for:
Pairing user's cluster of the current UE is sent to active user's terminal UE by radio resource control RRC signaling
In each UE C-RNTI and TM.
The embodiment of the present invention provides a kind of base station, the device including the network assistance terminal blind examination that above-mentioned network side is implemented.
The embodiment of the present invention provides a kind of system of network assistance terminal blind examination, including base station and terminal, wherein the base
It is provided with the device for the network assistance terminal blind examination that above-mentioned network side is implemented in standing, it is real that above-mentioned terminal side is provided in the terminal
The device for the network assistance terminal blind examination applied.
The embodiment of the present invention has the beneficial effect that:
Method, apparatus, system and the relevant device of network assistance terminal blind examination provided in an embodiment of the present invention, in terminal
Side, active user's terminal receive network side send active user's terminal pairing user's cluster in each user terminal cell without
Line network identity and transmission mode, the pairing that blind examination network side is chosen from pairing user's cluster for active user's terminal accordingly
The Downlink Control Information of user enables active user's terminal to delete pairing according to the Downlink Control Information of pairing user and uses
The interference at family.Compared with prior art, due to having divided pairing user's cluster of active user's terminal in the embodiment of the present invention, make to work as
The blind examination range of preceding user terminal is restricted, to reduce the complexity of terminal blind examination, has saved the process resource of terminal.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is inter-cell interference schematic diagram in the prior art；
Fig. 2 is that in the prior art, schematic diagram is deleted in network assistance interference；
Fig. 3 is in the embodiment of the present invention, and the implementation process diagram of network assistance terminal blind detection method is implemented in terminal side；
Fig. 4 is in the embodiment of the present invention, and network side implements the implementation process diagram of network assistance terminal blind detection method；
Fig. 5 is the application scenarios schematic diagram of network assistance terminal blind detection method in the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of the first network assistance terminal blind examination device in the embodiment of the present invention；
Fig. 7 is the structural schematic diagram of second of network assistance terminal blind examination device in the embodiment of the present invention；
Fig. 8 is the structural schematic diagram of network assistance terminal blind examination system in the embodiment of the present invention.
Specific embodiment
In order to reduce the complexity that terminal carries out blind examination when network assistance interference is deleted, terminal processes resource, this hair are saved
Bright embodiment provides method, apparatus, system and the relevant device of a kind of network assistance terminal blind examination.In the technical solution,
Terminal side, active user's terminal receive network side send active user's terminal pairing user's cluster in each user terminal it is small
Area's wireless network identification and transmission mode, blind examination network side is chosen from pairing user's cluster for active user's terminal accordingly
The Downlink Control Information for matching user enables active user's terminal to be matched according to the Downlink Control Information of pairing user to delete
Interference to user.Compared with prior art, due to having divided pairing user's cluster of active user's terminal in the embodiment of the present invention,
It is restricted the blind examination range of active user's terminal, to reduce the complexity of terminal blind examination, has saved the processing of terminal
Resource
The embodiment of the present invention is illustrated below in conjunction with Figure of description, it should be understood that implementation described herein
Example is merely to illustrate and explain the present invention, and is not intended to restrict the invention.And in the absence of conflict, the reality in the present invention
The feature for applying example and embodiment can be combined with each other.
As shown in figure 3, implementing the implementation process diagram of the method for network assistance terminal blind examination for base station side, specifically include
Following step:
Step 31, it is sent to active user's terminal (User Equipment, UE) every in pairing user's cluster of the current UE
The Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (Cell Radio Network Temporary Identifier, C-RNTI) of a UE and
TM carries out the DCI of the pairing user of itself blind so that current UE is according to the C-RNTI and TM of each UE in pairing user's cluster
Inspection, to delete the interference of pairing user.
Wherein, pairing user's cluster of current UE can be that network side is staggered according to geographical location or spatial coherence is small
Selection principle, for current UE choose.
When it is implemented, can by radio resource control (Radio Resource Control, RRC) signaling to
Current UE sends the C-RNTI and TM of each UE in pairing user's cluster.
Step 32, pairing user is chosen for current UE from pairing user's cluster, and carries out data transmission.
Wherein, base station can according to the spatial character between user terminal, such as position correlation and channel relevancy etc.,
Pairing user is chosen from pairing user's cluster for current UE.The process can realize that details are not described herein using the prior art.
After user terminal receives the above-mentioned relevant information of network side transmission, blind examination is carried out according to the relevant information.
Specifically, as shown in figure 4, the implementation process diagram of the method for terminal side implementation network assistance terminal blind examination, specifically includes
Following step:
Step 41, the C-RNTI and TM of each UE in the pairing user's cluster for the current UE that network side is sent are received.
In the specific implementation, it can be received by RRC signaling each in the pairing user's cluster for the current UE that network side is sent
The C-RNTI and TM of UE.
Wherein, TM can indicate two kinds of alternate formats of UE: the first DCI format and the second DCI format, the first DCI format
It can be the corresponding DCI format of transmission mode that UE is used, and the second DCI format can be the rollback for the transmission mode that UE is used
The corresponding DCI format of mode (fall back).
Step 42, according to the C-RNTI and TM of each UE in pairing user's cluster, blind examination network side is from pairing user's cluster
The Downlink Control Information (Downlink Control Information, DCI) for the pairing user that current UE is chosen, until obtaining
Match the DCI of user.
When it is implemented, carrying out the DCI of blind examination pairing user using the C-RNTI and TM of each UE in pairing user's cluster respectively.
Optionally, (Physical Downlink Control Channel, PDCCH) can distinguish public search space
(CSS) and user's dedicated search space public information and user special information, are carried respectively.Since terminal is in blind examination itself DCI
During, CSS is crossed in blind examination, therefore in the DCI of blind examination pairing user, in order to further decrease the complexity of blind examination,
CSS can not be examined.
Based on this, which can be specifically included:
According to the C-RNTI and TM of each UE in pairing user's cluster, blind examination matches user in addition to public search space CSS
DCI, until obtain pairing user DCI.
In addition, it is optional, on the basis of two kinds of alternate formats of TM instruction UE, it is contemplated that MU-MIMO user terminal
Channel quality, it may be considered that reduce the priority of the DCI format of the fall-back mode of transmission mode, thus make the complexity of blind examination into
One step reduces.
Based on this, step 42 can be specifically included:
The first DCI format and the second DCI format successively indicated using C-RNTI, TM of each UE in pairing user's cluster,
The DCI of user is matched in blind examination, until obtaining the DCI of pairing user；
Wherein, the use priority of the first DCI format is greater than the use priority of the second DCI format.
For example, first successively using the first DCI format of C-RNTI and the TM instruction of each UE in pairing user's cluster, blind examination is matched
To the DCI of user；As the DCI for not having blind examination to go out pairing user, then successively using the C-RNTI of each UE in pairing user's cluster
With the second DCI format of TM instruction, the DCI of user is matched in blind examination.
Step 43, according to the DCI of obtained pairing user, the interference of pairing user is deleted.
Due to including the scheduling related information for matching user needed for NAICS interference is deleted in DCI, as long as
The DCI for having arrived pairing user can delete the interference of pairing user accordingly.
Embodiment in order to better understand the present invention, below in conjunction with the specific specific implementation implemented to the embodiment of the present invention
Process is illustrated.
Fig. 5 is the application scenarios schematic diagram of network assistance terminal blind detection method.Under application scenarios as shown in Figure 5, net
The method of network auxiliary terminal blind examination specifically comprises the following steps:
Firstly, eNB (base station) is UE A selection pairing user's cluster (UE B, C and D).
Wherein, pairing user's cluster of each UE is determined according to the spatial character between each UE.
For example pairing user's cluster of UE B can be (UE A, C, E and F), it is overlapping with pairing user's cluster part of UE A.
Then, the transmission mode that eNB is notified the C-RNTI of UE A:UE B, C and D and used by RRC signaling.
ENB selects UE B as pairing user from pairing user's cluster of UE A again, and carries out data transmission.
At this point, while UE A blind examination itself DCI, with the C-RNTI of UE B, C and D and its corresponding DCI lattice of transmission mode
Formula attempts blind examination, until solving the DCI of pairing user UE B.
Finally, UE A deletes the interference of pairing user UE B.
In the method for network assistance terminal blind examination provided in an embodiment of the present invention, active user's terminal receives network side and sends
Active user's terminal pairing user's cluster in each user terminal cell-radio network mark and transmission mode, blind examination accordingly
The Downlink Control Information for the pairing user that network side is chosen from pairing user's cluster for active user's terminal, so that current use
Family terminal can delete the interference of pairing user according to the Downlink Control Information of pairing user.Compared with prior art, due to
Pairing user's cluster that active user's terminal has been divided in the embodiment of the present invention, limits the blind examination range of active user's terminal
System, to reduce the complexity of terminal blind examination, has saved the process resource of terminal, but also can significantly promote MU-
MIMO receptivity.
Based on the same inventive concept, it is whole that a kind of network assistance that network side is implemented also is each provided in the embodiment of the present invention
The device and equipment and network assistance terminal for the network assistance terminal blind examination that the device and equipment of end blind examination and terminal side are implemented
The system of blind examination, the principle and the network assistance terminal with network side implementation solved the problems, such as due to above-mentioned apparatus, equipment and system
The method of blind examination is similar with the method for network assistance terminal blind examination that terminal side is implemented, therefore above-mentioned apparatus, equipment, that is, system
Implementation may refer to the implementation of method, and overlaps will not be repeated.
As shown in fig. 6, the structural representation of the device for the first network assistance terminal blind examination provided in an embodiment of the present invention
Figure, comprising:
Receiving unit 61, for receive network side transmission active user's terminal UE pairing user's cluster in each UE it is small
Area radio network temporary identifier C-RNTI and transmission mode TM；
Blind examination unit 62, for according to receiving unit 61 it is received it is described pairing user's cluster in each UE C-RNTI and
TM, network side described in blind examination are the Downlink Control Information for the pairing user that the current UE is chosen from pairing user's cluster
DCI, until obtaining the DCI of the pairing user；
Unit 63 is deleted, the DCI of the pairing user for obtaining according to blind examination unit 62 deletes the pairing user
Interference.
Optionally, the blind examination unit 62, is specifically used for:
According to the C-RNTI and TM of each UE in pairing user's cluster, pairing user described in blind examination removes public search space
DCI except CSS, until obtaining the DCI of the pairing user.
Optionally, the transmission mode of each UE indicates the first DCI format and the second DCI format of the UE；Wherein, described
First DCI format is the corresponding DCI format of the transmission mode, and second DCI format is the rollback mould of the transmission mode
The corresponding DCI format of formula；Then
The blind examination unit 62, is specifically used for:
Successively using the first DCI format and the 2nd DCI lattice of C-RNTI, TM instruction of each UE in pairing user's cluster
Formula, the DCI of user is matched described in blind examination, until obtaining the DCI of the pairing user；
Wherein, the use priority of first DCI format is greater than the use priority of second DCI format.
Optionally, the receiving unit 61, is specifically used for:
The pairing user's cluster for active user's terminal UE that network side is sent is received by radio resource control RRC signaling
In each UE C-RNTI and TM.
For convenience of description, above each section is divided by function describes respectively for each module (or unit).Certainly, exist
Implement to realize the function of each module (or unit) in same or multiple softwares or hardware when the present invention.
When it is implemented, the device of the first above-mentioned network assistance terminal blind examination can be set in the terminal.
As shown in fig. 7, the structural representation of the device for second of network assistance terminal blind examination provided in an embodiment of the present invention
Figure, comprising:
Transmission unit 71, for active user's terminal UE send the current UE pairing user's cluster in each UE it is small
Area radio network temporary identifier C-RNTI and transmission mode TM；
User's selection unit 72 is matched, for being that the current UE chooses pairing user from pairing user's cluster, with
Toilet states current UE according to the C-RNTI and TM of each UE in pairing user's cluster, carries out blind examination to the pairing user, with
Delete the interference of the pairing user.
Optionally, the transmission unit 71, is specifically used for:
Pairing user's cluster of the current UE is sent to active user's terminal UE by radio resource control RRC signaling
In each UE C-RNTI and TM.
For convenience of description, above each section is divided by function describes respectively for each module (or unit).Certainly, exist
Implement to realize the function of each module (or unit) in same or multiple softwares or hardware when the present invention.
When it is implemented, the device of the first above-mentioned network assistance terminal blind examination can be set in a base station.
As shown in figure 8, being the system of network assistance terminal blind examination provided in an embodiment of the present invention, including terminal 81 and base station
82, wherein be provided with the first above-mentioned network assistance terminal blind examination device in terminal 81, be provided with above-mentioned second in base station 82
Network assistance terminal blind examination device.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (15)
1. a kind of method of network assistance terminal blind examination, which is characterized in that more applied to same site or with the multi-user-under cell
Input multi output MU-MIMO system, comprising:
Receive the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of each UE in the pairing user's cluster for active user's terminal UE that network side is sent
C-RNTI and transmission mode TM；
According to the C-RNTI and TM of each UE in pairing user's cluster, network side described in blind examination is from pairing user's cluster
The Downlink Control Information DCI for the pairing user that the current UE is chosen, until obtaining the DCI of the pairing user；
According to the DCI of the pairing user, the interference of the pairing user is deleted；
Wherein, pairing user's cluster is the selection principle that network side is staggered according to geographical location or spatial coherence is small, is
What current UE was chosen.
2. the method as described in claim 1, which is characterized in that according to it is described pairing user's cluster in each UE C-RNTI and
TM, network side described in blind examination are the Downlink Control Information for the pairing user that the current UE is chosen from pairing user's cluster
DCI is specifically included until obtaining the DCI of the pairing user:
According to the C-RNTI and TM of each UE in pairing user's cluster, pairing user described in blind examination removes public search space CSS
Except DCI, until obtain it is described pairing user DCI.
3. the method as described in claim 1, which is characterized in that the transmission mode of each UE indicates the first DCI lattice of the UE
Formula and the second DCI format；Wherein, first DCI format is the corresponding DCI format of the transmission mode, the 2nd DCI lattice
Formula is the corresponding DCI format of fall-back mode of the transmission mode；Then
According to the C-RNTI and TM of each UE in pairing user's cluster, network side described in blind examination is from pairing user's cluster
The Downlink Control Information DCI for the pairing user that the current UE is chosen is specifically included until obtaining the DCI of the pairing user:
The first DCI format and the second DCI format successively indicated using C-RNTI, TM of each UE in pairing user's cluster,
The DCI of user is matched described in blind examination, until obtaining the DCI of the pairing user；
Wherein, the use priority of first DCI format is greater than the use priority of second DCI format.
4. the method as described in claim 1, which is characterized in that the pairing for receiving active user's terminal UE that network side is sent is used
The Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI and transmission mode TM of each UE in the cluster of family, specifically includes:
It is received by radio resource control RRC signaling every in the pairing user's cluster for active user's terminal UE that network side is sent
The C-RNTI and TM of a UE.
5. a kind of device of network assistance terminal blind examination, which is characterized in that more applied to same site or with the multi-user-under cell
Input multi output MU-MIMO system, comprising:
Receiving unit, it is wireless for receiving the cell for matching each UE in user's cluster of active user's terminal UE of network side transmission
Network Temporary Identifier C-RNTI and transmission mode TM；
Blind examination unit, for the C-RNTI and TM according to each UE in the received pairing user's cluster of receiving unit, blind examination institute
The Downlink Control Information DCI that network side is the pairing user that the current UE is chosen from pairing user's cluster is stated, until
To the DCI of the pairing user；
Unit is deleted, the DCI of the pairing user for obtaining according to blind examination unit deletes the interference of the pairing user；
Wherein, pairing user's cluster is the selection principle that network side is staggered according to geographical location or spatial coherence is small, is
What current UE was chosen.
6. device as claimed in claim 5, which is characterized in that the blind examination unit is specifically used for:
According to the C-RNTI and TM of each UE in pairing user's cluster, pairing user described in blind examination removes public search space CSS
Except DCI, until obtain it is described pairing user DCI.
7. device as claimed in claim 5, which is characterized in that the transmission mode of each UE indicates the first DCI lattice of the UE
Formula and the second DCI format；Wherein, first DCI format is the corresponding DCI format of the transmission mode, the 2nd DCI lattice
Formula is the corresponding DCI format of fall-back mode of the transmission mode；Then
The blind examination unit, is specifically used for:
The first DCI format and the second DCI format successively indicated using C-RNTI, TM of each UE in pairing user's cluster,
The DCI of user is matched described in blind examination, until obtaining the DCI of the pairing user；
Wherein, the use priority of first DCI format is greater than the use priority of second DCI format.
8. device as claimed in claim 5, which is characterized in that the receiving unit is specifically used for:
It is received by radio resource control RRC signaling every in the pairing user's cluster for active user's terminal UE that network side is sent
The C-RNTI and TM of a UE.
9. a kind of terminal, which is characterized in that including device described in claim 5-8 any one.
10. a kind of method of network assistance terminal blind examination, which is characterized in that applied to same site or with the multi-user-under cell
Multiple-input and multiple-output MU-MIMO system, comprising:
The Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of each UE in pairing user's cluster of the current UE is sent to active user's terminal UE
C-RNTI and transmission mode TM, so that the current UE is according to the C-RNTI and TM of each UE in pairing user's cluster, to certainly
The DCI of the pairing user of body carries out blind examination, to delete the interference of the pairing user；
It is that the current UE chooses pairing user, and carries out data transmission from pairing user's cluster；
Wherein, pairing user's cluster is the selection principle that network side is staggered according to geographical location or spatial coherence is small, is
What current UE was chosen.
11. method as claimed in claim 10, which is characterized in that send the pairing of the current UE to active user's terminal UE
The Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI and transmission mode TM of each UE in user's cluster, specifically includes:
It is sent in pairing user's cluster of the current UE often by radio resource control RRC signaling to active user's terminal UE
The C-RNTI and TM of a UE.
12. a kind of device of network assistance terminal blind examination, which is characterized in that applied to same site or with the multi-user-under cell
Multiple-input and multiple-output MU-MIMO system, comprising:
Transmission unit, the cell for matching each UE in user's cluster for sending the current UE to active user's terminal UE is wireless
Network Temporary Identifier C-RNTI and transmission mode TM, so that the current UE is according to the C- of each UE in pairing user's cluster
RNTI and TM carries out blind examination to the DCI of the pairing user of itself, to delete the interference of the pairing user；
User's selection unit is matched, for being that the current UE chooses pairing user, line number of going forward side by side from pairing user's cluster
According to transmission；
Wherein, pairing user's cluster is the selection principle that network side is staggered according to geographical location or spatial coherence is small, is
What current UE was chosen.
13. device as claimed in claim 12, which is characterized in that the transmission unit is specifically used for:
It is sent in pairing user's cluster of the current UE often by radio resource control RRC signaling to active user's terminal UE
The C-RNTI and TM of a UE.
14. a kind of base station, which is characterized in that including device described in claim 12 or 13.
15. a kind of system of network assistance terminal blind examination, which is characterized in that including base station and terminal, wherein set in the terminal
It is equipped with device described in claim 5-8 any one, claim 12 or 13 described devices are provided in the base station.
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| CN107295686B (en) * | 2016-04-11 | 2021-04-09 | 华为技术有限公司 | Interference processing method, related equipment and interference processing system |
| CN108282291B (en) * | 2017-01-06 | 2020-09-22 | 电信科学技术研究院 | DCI transmission method, UE and network side equipment |
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