CN102315870B - A kind of Downlink Control Information indicating means and device - Google Patents
A kind of Downlink Control Information indicating means and device Download PDFInfo
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- CN102315870B CN102315870B CN201110296115.6A CN201110296115A CN102315870B CN 102315870 B CN102315870 B CN 102315870B CN 201110296115 A CN201110296115 A CN 201110296115A CN 102315870 B CN102315870 B CN 102315870B
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Abstract
The invention discloses a kind of Downlink Control Information indicating means and device, to support the multilayer transmission based on UE DRS (Dedicated Reference Signal)s, UE generates Downlink Control Information, Downlink Control Information includes indication signaling, and the indication signaling is used for the combined coding information of marker antenna port information and UE DRS (Dedicated Reference Signal) relevant parameters；Wherein, antenna port information value includes one of following antenna port set or its any combination：Port 7 and 9；Port 7 and 10；Port 8 and 9；Port 8 and 10；Port 9 and 10；Port 7,9 and 10；Port 8,9 and 10；Port 7,8 and 9；Port 7,8 and 10.The present invention in descending control information format by increasing new indication signaling, quantity for the transmission block in enable indicates different combined coding parameters when different, realizes and supports enhancing down control channel ePDCCH and the interference elimination of minizone or interference coordination.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of Downlink Control Information indicating means and device.
Background technology
In wireless communication technology, when base station side (such as the node B of evolution, i.e. eNB) sends data using many antennas,
The mode of spatial reuse can be taken to improve message transmission rate, i.e., in transmitting terminal using identical running time-frequency resource different
Aerial position launches different data, and receiving terminal (such as user equipment, referred to as UE) also receives data using many antennas.
The resource of all antennas is distributed on same user in the case of single user, this user occupies alone in a transmission intercal
The physical resource of base station side distribution, this transmission means is referred to as single user multiple-input, multiple-output (Single User Multiple-
Input Multiple-Out-put, abbreviation SU-MIMO)；The space resources of different antennae is distributed in the case of multi-user
To different user, a user and at least one other user physics that sharing base side is distributed in transmission intercal money
Source, sharing mode can be space division multiple access mode or space division multiplexing mode, and this transmission means is referred to as multi-user's multiple-input, multiple-output
(Multiple User Multiple-Input Multiple-Out-put, abbreviation MU-MIMO).Wherein, base station side is distributed
Physical resource refers to running time-frequency resource.If Transmission system will support SU-MIMO and MU-MIMO patterns simultaneously, eNB is needed to UE
Data under both patterns are provided.UE is both needed to know that eNB is transmitted for the UE in SU-MIMO patterns or MU-MIMO patterns
Order (Rank) used in MIMO data.Under SU-MIMO patterns, the resource of all antennas is distributed on same user, transmission
The number of plies used in MIMO data is equal to eNB in the order used in transmission MIMO data；Under MU-MIMO patterns, one use of correspondence
The transmission number of plies used in family transmits total number of plies of MIMO data less than eNB.If carrying out SU-MIMO patterns and MU-MIMO
Switching, eNB needs the control datas different UE that sent a notice in different transmission mode.
Defined in version 8 (Release 8) standard of Long Term Evolution (Long-Term Evolution, referred to as LTE)
Following three kinds of downlink physical control channels：Physical down control format indicates channel (Physical Control Format
Indicator Channel, referred to as PCFICH), physical hybrid automatic repeat request indicator channel (Physical Hybrid
Automatic Retransmission Request Indicator Channel, referred to as PHICH) and physical down control
Channel (Physical Downlink Control Channel, referred to as PDCCH).Wherein PDCCH is controlled for bearing downlink
Information (Downlink Control Information, referred to as DCI), including：Uplink and downlink schedule information, and up work(
Rate control information.DCI form (DCI format) is divided into following several：DCI format0、DCI format 1、DCI
format 1A、DCI format 1B、DCI format 1C、DCI format1D、DCI format 2、DCI format
2A, DCI format 3 and DCI format 3A etc..Wherein MU-MIMO transmission mode 5 is supported to make use of DCI format
1D Downlink Control Information, and descending power domain (Downlink power offset field) δ in DCIformat 1D
Power-offset-offset is used to indicate that the power for a user in MU-MIMO patterns halves (i.e. -10log10
(2) information), because the MU-MIMO transmission of MU-MIMO transmission pattern 5 supports, two users, by this descending power domain,
MU-MIMO transmission pattern 5 can support the switching at runtime of SU-MIMO patterns and MU-MIMO patterns, but no matter in SU-MIMO
Pattern or this DCI format of MU-MIMO patterns only support a UE transmission of a stream, although LTE versions 8 are in transmission mould
The single user transmission of most two streams is supported in formula 4, but because the switching between transmission mode can only be semi-static,
The switching at runtime of single user multiple stream transmission and multi-user transmission can not be accomplished in LTE versions 8.
In LTE version 9 (Release 9), in order to strengthen descending multi-antenna transmission, dual-stream beamforming is introduced
(Beamforming) transmission mode, and Downlink Control Information adds DCI format2B to support this transmission mode,
There is the identification bit of a scrambler sequence identity (scrambling identity, abbreviation SCID) to prop up in DCI format 2B
Two different scrambler sequences are held, the two scrambler sequences can be distributed to different user by eNB, multiple in same resource multiplex
User.In addition, when only one of which transmission block is enabled, the corresponding new data of transmission block of non-enable (Disabled) is indicated
(NDI) antenna port when bit is also used to refer to single layer transmission.
In addition, in LTE version 10 (Release 10), MIMO transmission mode has determined that takes ginseng using UE
The pilot tone for examining signal (UE specific Reference Signal, referred to as URS) to call as solution, UE need to obtain pilot tone
Position, can just do the estimation of channel and interference in pilot tone.Total number of plies of difference transmission has different pilot frequency design (URS
Pattern), for example it is preliminary in LTE version 10 to have three kinds of different patterns surely, when the total number of plies or order of transmission are 1 or 2,
With first pattern (URS pattern 1), with second pattern (URSpattern when the total number of plies or order of transmission are 3 or 4
2) with the 3rd pattern (URS pattern3) when, the total number of plies or order of transmission are any value in 5 to 8.In SU-MIMO patterns
In, the data of all transport layers are all sent to same UE, as long as so UE obtains order it is known that pilot frequency design also may be used
To know the position of pilot tone.In MU-MIMO patterns, UE need to know that sum of ranks starts the number of plies being transmitted to the UE, and UE is also needed
The pilot frequency locations of interference can just be obtained by knowing the pilot frequency design of transmission.In addition, different UE DRS (Dedicated Reference Signal)s make
With different spreading codes, UE also needs the spreading code for knowing transmission just to obtain the information in pilot tone.In existing LTE version numbers
In 8 technology, the demand is not supported；In LTE versions 10, it has been determined that MIMO transmission mode need to support that maximum total number of plies is 8
Single user transmission, and single user and multi-user transmission are supported in same transmission mode, so needing to make in LTE versions 10
The MIMO multi-user transmissions based on URS are supported with new signaling.
In LTE version 10 (Release 10), UE-specific reference signals are used in antenna port p=5, p=
7, p=8, or p=7,8 ... to the support of PDSCH transmission on υ+6, wherein υ represents number of layers used in PDSCH transmission.Only
Have when PDSCH transmission is related to the port described in agreement, UE-specific reference signals can just be present and conduct
Useful signal required for PDSCH demodulation.UE-specific reference signals only have mapped corresponding PDSCH resource block
(RBs) transmitted on.
In LTE version 10 (Release 10), in order to further enhance descending multi-antenna transmission, transmission mould is introduced
Formula 9, transmission mode 9 on the basis of double fluid beamforming (pattern 8), further enhances maximum in compatible LTE versions 9
The wave beam forming of 8 layer transmission is supported, and Downlink Control Information adds DCI format 2C to support this transmission mode,
In DCI format 2C, SCID, number of layers and antenna port are designed into control signaling by way of combined coding, and
Having reused is used for the SCID bits for indicating scrambler sequence identity in pattern 8.Equally, when only one of which transmission block is enabled,
The corresponding new data of transmission block of non-enable (Disabled) indicates antenna end when (NDI) bit is also used to refer to single layer transmission
Mouthful.In version 10, realized just by orthogonal mask (Orthogonal Cover Code, referred to as OCC) between each port
Hand over, the distribution of the OCC codes of different port (port 7~14) can unify as shown in table 1, wherein carrying demodulated reference signal is not
On same OFDM (Orthogonal Frequency Division Multiplexing, referred to as OFDM) symbol l '
The scrambler sequence used is according to formula wp(l ') is determined,Wherein, m '=0,
1,2, each physical time-frequency resource block is corresponded to respectively from the relative position of low to high demodulation pilot tone, nPRBCorresponding to under physics
The physical time-frequency resource block rope of row shared channel (Physical Downlink Share Channel, referred to as PDSCH) transmission
Draw.
The antenna port of table 1 and corresponding scrambler sequence table
In LTE versions 11, it is necessary to support enhanced physical downlink control channel PDCCH (ePDCCH) transmission, it is necessary to
Send specific UE DRS (Dedicated Reference Signal)s (UE specific reference signal) to support ePDCCH transmission, now
EPDCCH demodulated reference signal needs to take some antenna ports such as port 7.In addition, it is necessary to support in LTE versions 11
Coordinated multipoint transmission (COMP) or spaced antenna (DAS), the demodulated reference signal of neighbor cell need to take this cell
Certain port such as port 8.Therefore, the descending control signaling of LTE versions 10 can not be realized when certain port is taken by ePDCCH
Or demodulated reference signal i.e. UE DRS (Dedicated Reference Signal)s (UE when being taken by neighbor cell to this cell downlink data transfer
Specific reference signal) parameter indicate function.
The content of the invention
Present invention solves the technical problem that being to provide a kind of Downlink Control Information indicating means and device, to support to be based on UE
The multilayer transmission of DRS (Dedicated Reference Signal).
In order to solve the above technical problems, the invention provides a kind of Downlink Control Information indicating means,
Base station is that user equipment (UE) generates Downlink Control Information, and the Downlink Control Information includes indication signaling, described
Indication signaling is used for the combined coding information of marker antenna port information and UE DRS (Dedicated Reference Signal) relevant parameters；
Wherein, the antenna port information value includes one of following antenna port set or its any combination：
Port 7 and 9；Port 7 and 10；Port 8 and 9；Port 8 and 10；Port 9 and 10；Port 7,9 and 10；Port 8,9 and
10；Port 7,8 and 9；Port 7,8 and 10.
Further, the indication signaling has multiple state values, and a state value uniquely indicates an antenna port collection
Close and one group of UE DRS (Dedicated Reference Signal) related parameter values.
Further, the base station is by the indication signaling in descending control format, indicate the antenna port information and
The combined coding of UE DRS (Dedicated Reference Signal) relevant parameters.
Further, the UE DRS (Dedicated Reference Signal)s relevant parameter includes one of following parameter or its any combination：Transmission
The number of plies, scrambler sequence identity, spreading codes information, reference signal information.
Further, the spreading codes information at least includes one of following information：Spread code length, specific spreading code.
Further, the reference signal information includes reference signal pattern or reference signal expense.
Further, the base station will be generated by downlink physical control channel or enhanced downlink physical control channel
The Downlink Control Information be sent to the UE.
Present invention also offers a kind of Downlink Control Information instruction device, applied to descending multilayer (MIMO) transmission of support
Base station, described device includes control information generation module, physical downlink channel control signal generation module and sending module, its
In：
The control information generation module is used for, and is UE generation Downlink Control Information, in the Downlink Control Information of generation
Including indication signaling, the indication signaling is used for marker antenna port information and the joint of UE DRS (Dedicated Reference Signal) relevant parameters is compiled
Code information；Wherein described antenna port information value includes one of following antenna port set or its any combination：Port 7 and 9；
Port 7 and 10；Port 8 and 9；Port 8 and 10；Port 9 and 10；Port 7,9 and 10；Port 8,9 and 10；Port 7,8 and 9；End
Mouth 7,8 and 10；
The physical downlink channel control signal generation module is used for, and Downlink Control Information is handled, physics is obtained
Downlink channel control signal；
The sending module is used for, and physical downlink channel control signal is sent into UE.
Further, the control information generation module passes through multiple state values of the indication signaling, the instruction letter
Order has multiple state values, and a state value uniquely indicates antenna port set ginseng related to one group of UE DRS (Dedicated Reference Signal)
Numerical value.
Further, the control information generation module is used for, by the indication signaling in descending control format, indicates institute
State the combined coding of antenna port information and UE DRS (Dedicated Reference Signal) relevant parameters.
Further, the UE DRS (Dedicated Reference Signal)s relevant parameter that the control information generation module is indicated includes following
One of parameter or its any combination：The number of plies, the scrambler sequence identity of transmission, spreading codes information, reference signal information；
Wherein, the spreading codes information at least includes one of following information：Spread code length, specific spreading code；
The reference signal information includes reference signal pattern or reference signal expense.
Further, the sending module is used for, and is controlled by downlink physical control channel or enhanced downlink physical
The physical downlink channel control signal is sent to the UE by channel.
In summary, the present invention proposes a kind of indicating means and device of descending control signaling, by believing in descending control
Ceasing increases by a new indication signaling in form, the quantity for the transmission block in enable indicates different combined coding ginsengs when different
Number, realizes and supports enhancing down control channel ePDCCH and the interference elimination of minizone or interference coordination；In addition, the present invention is also
There is provided a kind of Downlink Control Information of low overhead, same signaling support simultaneously maximum total number of plies for 8 single user transmission and
Multi-user transmission.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram of the indicating means of the Downlink Control Information of the embodiment of the present invention.
Fig. 2 is the schematic diagram of the instruction device of the Downlink Control Information of the embodiment of the present invention.
Embodiment
For not supporting the transmission of enhancing down control channel and inter-cell interference to disappear in LTE version 11 in the prior art
Except the problem of, present embodiments provide for a kind of indicating means of Downlink Control Information, including：
Base station at least includes an indication signaling in the UE descending control information format of Downlink Control Information is sent to,
For indicating port set and UE DRS (Dedicated Reference Signal) relevant parameters.
Wherein, the antenna port information specifically includes continuous or discrete antenna port set；And the antenna end
Mouth collection is combined into the antenna end in addition to the antenna port that enhancing Physical Downlink Control Channel (ePDCCH) or neighbor cell take
The subset of mouth.
Wherein, set value in described port is at least included with one of lower port set or its any combination：Port 7 and 9；
Port 7 and 10；Port 8 and 9；Port 8 and 10；Port 9 and 10；Port 7,9 and 10；Port 8,9 and 10；Port 7,8 and 9；End
Mouth 7,8 and 10.
Wherein, the indication signaling has multiple state values, and the indication signaling has multiple state values, a state value
Uniquely indicate an antenna port set and one group of UE DRS (Dedicated Reference Signal) related parameter values.
Base station is by downlink physical control channel or enhanced downlink physical control channel by the Downlink Control Information
It is sent to terminal UE.
Further, the related parameter of described UE DRS (Dedicated Reference Signal)s at least includes one or a combination set of following parameter：
The number of plies, the scrambler sequence identity of transmission, spreading codes information, reference signal information.
More specifically, the related parameter of described other UE DRS (Dedicated Reference Signal)s is the number of plies of transmission.
More specifically, the related parameter of described other UE DRS (Dedicated Reference Signal)s is the number of plies of transmission, scrambler sequence body
Part.
More specifically, the related parameter of described other UE DRS (Dedicated Reference Signal)s is the number of plies of transmission, scrambler sequence body
Part and spreading codes information.
More specifically, the related parameter of described other UE DRS (Dedicated Reference Signal)s is the number of plies of transmission, scrambler sequence body
Part and reference signal information.
More specifically, spreading codes information at least includes one of following information：Spread code length, specific spreading code.
More specifically, reference signal information refers to reference signal pattern or reference signal expense.
In order to solve the above-mentioned technical problem, present embodiment additionally provides a kind of instruction device of Downlink Control Information, should
For base station system, the device includes：Control information generation module, physical downlink channel control signal generation module and transmission mould
Block.
Specifically, control information generation module, for producing Downlink Control Information, at least including an indication signaling, is used
In the combined coding for indicating port set and UE DRS (Dedicated Reference Signal) relevant parameters.
Physical downlink channel control signal generation module, physical down control is obtained for handling Downlink Control Information progress
Channel signal processed.Sending module, for the signal of down control channel to be sent into terminal UE.
As described above, the present invention is passed by defining new indication signaling in multi-user's multiple-input, multiple-output (MIMO) data
Different combined coding parameters are indicated when defeated, the MIMO multi-user transmissions based on demodulation pilot tone are supported.
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with accompanying drawing to the present invention
Embodiment be described in detail.It should be noted that in the case where not conflicting, in the embodiment and embodiment in the application
Feature can mutually be combined.
Embodiment one
Fig. 1 is the flow chart of the processing method of the parameter of descending control signaling according to embodiments of the present invention.Such as Fig. 1 institutes
Show, configured transmission indicating means according to embodiments of the present invention includes：
Step S102, base station eNodeB produces Downlink Control Information, is at least used to indicate port including an indication signaling
The combined coding of the set parameter related to other UE DRS (Dedicated Reference Signal)s.
Step S104, base station eNodeB is by downlink physical control channel or enhanced downlink physical control channel by institute
The Downlink Control Information stated is sent to terminal UE.
Above-mentioned parameter indicating means, can be by the number of plies of transmission, scrambler sequence body in instruction user equipment configured transmission
The parameters such as part, antenna port set carry out combined coding generation parameter indication signaling, are then sent to by Downlink Control Information
User equipment.Because the set of discontinuous port has been put into combined coding by the above method, therefore can more flexibly it select
The port of reference signal, so that the demodulation pilot orthogonal transmission of more layers is supported between the user of different districts, or so as to
The transmission of enhancing down control channel and the transmission of the Physical Downlink Shared Channel of multilayer are supported simultaneously.
Preferably, step S102 may further include following processing：Determined according to above-mentioned configured transmission based on user
Equipment specific reference signals transmit when layer arrive antenna port mapping mode, and according to the mapping mode generate parameter indicate letter
Order.
Combined coding is being carried out to configured transmissions such as the number of plies of transmission, scrambler sequence identity, antenna port, pilot-frequency expenses
Afterwards, you can determine the layer when being transmitted based on user equipment specific reference signals to the mapping mode of antenna port, for example, working as
When number of layers is v, if its corresponding port is { p0, p1... pv-1, then layer i (o≤i≤v-1) corresponds to port pi.Then
Parameter indication signaling can be just designed according to this corresponded manner, and ultimately generate parameter indication signaling.
Wherein, pilot frequency information may include pilot frequency design and/or pilot frequency mode.Pilot frequency design and pilot frequency mode be it is of equal value,
The unique pilot frequency mode of pilot frequency design correspondence, pilot frequency design can be determined by corresponding pilot frequency mode.Indicate combined coding ginseng
During number, pilot frequency design or pilot frequency mode or pilot frequency information can be directly indicated.The number of plies of transmission and the order (rank values) of transmission are
Of equal value, rank values represent the number of plies being transmitted to the UE when multi-user and single user are transmitted；The index of antenna port and layer
It can be corresponded by mapping mode, antenna port used when being transmitted from multi-user and single user, it is known that the rope of layer
Draw.The embodiment of the present invention obtains the equivalent information of the above also through signaling.
Wherein, spreading codes information includes spread spectrum code length and specific spreading code.In embodiment, combined coding parameter is indicated
When, spread spectrum code length can be directly indicated, spreading code can also be directly indicated, also can indicate that the label of spreading codes information just may be used
The spread spectrum code length included with indicating in spreading codes information and specific spreading codes information, it is as shown in table 2 below：
The spreading codes information table of table 2
It should be noted that in the embodiment of the present invention various corresponding relations (such as in form after combined coding index with
Specific object corresponding relation, the corresponding relation of antenna port and the number of plies, the corresponding relation of the index of layer and pilot frequency design) do not limit
Due to unique corresponding relation, i.e. their order can arbitrarily exchange combination, as long as corresponding.Specifically,
Rope after the unique specific object of index correspondence after one combined coding, a unique combined coding of specific object correspondence
Draw.Its is simply enumerated in the embodiment of the present invention corresponding a kind of possible, as long as the state consistency of specific object, i.e., included in this hair
In bright protection domain.
Embodiment two
A kind of Downlink Control Information instruction device is additionally provided in the embodiment of the present invention, applied to the descending multilayer of support
(MIMO) base station of transmission, as shown in Fig. 2 the present embodiment device mainly includes control information generation module, physical down control
Channel signal generation module and sending module, wherein：
Control information generation module, for producing Downlink Control Information, at least including an indication signaling, for indicating not
Gather the combined coding of the parameter related to other UE DRS (Dedicated Reference Signal)s in the port that continuous port is constituted.
Physical downlink channel control signal generation module, physical down control is obtained for handling Downlink Control Information progress
Channel signal processed.
Sending module, is mainly used in the signal of down control channel being sent to terminal UE.
Further, the control information generation module passes through multiple state values of the indication signaling, the instruction letter
Order has multiple state values, and a state value uniquely indicates antenna port set ginseng related to one group of UE DRS (Dedicated Reference Signal)
Numerical value.
Further, the control information generation module is used for, by the indication signaling in descending control format, indicates institute
State the combined coding of antenna port information and UE DRS (Dedicated Reference Signal) relevant parameters.
Further, the UE DRS (Dedicated Reference Signal)s relevant parameter that the control information generation module is indicated includes following
One of parameter or its any combination：The number of plies, the scrambler sequence identity of transmission, spreading codes information, reference signal information；
Wherein, the spreading codes information at least includes one of following information：Spread code length, specific spreading code；
The reference signal information includes reference signal pattern or reference signal expense.
Further, the sending module is used for, and is controlled by downlink physical control channel or enhanced downlink physical
The physical downlink channel control signal is sent to the UE by channel.
It should be noted that relation can be replaced arbitrarily between state and signaling bit value described in above-described embodiment,
As long as the state identical description is included in invention scope.
The realization of technical solution of the present invention is described in detail with reference to a specific example.
Base station eNodeB produces Downlink Control Information, is at least used to indicate discontinuous port structure including an indication signaling
Into port gather the combined coding of the parameter related to other UE DRS (Dedicated Reference Signal)s.
The related parameter of described other UE DRS (Dedicated Reference Signal)s includes following five kinds of situations：The first situation is the ginseng
Number includes the number of plies of transmission；Second of situation is that described parameter includes the transmission number of plies, scrambler sequence identity；The third situation is
Described parameter includes the number of plies, scrambler sequence identity, spreading codes information of transmission；4th kind of situation is that described parameter includes：
The number of plies, scrambler sequence identity, the reference signal information of transmission；5th kind of situation is that described parameter includes：The number of plies of transmission, disturb
Code Sequence identity, spreading codes information and reference signal information.
In the present invention, described port set value at least includes one of following nine kinds of situations or its any combination：First
The situation of kind is the port set that port 7 and 9 is constituted；Second of situation is the port set that port 7 and 10 is constituted；The third situation
It is the port set that port 8 and 9 is constituted；4th kind of situation is the port set that port 8 and 10 is constituted；5th kind of situation is port
The 9 and 10 port set constituted；6th kind of situation is the port set that port 7,9 and 10 is constituted；7th kind of situation is port 8,9
With the 10 port set constituted；8th kind of situation is the port set that port 7,8 and 9 is constituted；9th kind of situation is port 7,8 and
The 10 port set constituted；
More specific example is described as follows, including one of following various situations or its any combination：
When one or two transmission blocks are enabled, the number of plies, scrambler sequence identity to transmission, antenna port information
Combined coding is carried out, the parameter indication signaling of 4 bits is generated, the indicator has 16 state values, wherein, it is described to indicate letter
Order has multiple state values, and the indication signaling has multiple state values, and a state value uniquely indicates an antenna port collection
Close and one group of UE DRS (Dedicated Reference Signal) related parameter values.
It is defined as follows in this example：
Signaling is equal to x1, indicates port 7 and 9, and the transmission number of plies is equal to 2, and scrambler identity is equal to 0；
This state instruction is advantageous in that, if enhanced down control channel (or downlink transfer of neighbor cell)
Port 8 is occupied, in order to evade resource contention, current descending 2 layer transmission can no longer use traditional port 8, can be with
Selection port 7 and 9.
Signaling is equal to x2, and corresponding ports 7 and 10, the transmission number of plies is equal to 2, and scrambler identity is equal to 0；
This state instruction is advantageous in that, if enhanced down control channel (or downlink transfer of neighbor cell)
Port 8 and port 9 are occupied, in order to evade resource contention, current descending 2 layer transmission can no longer use traditional port
8 and port 9, can be with selection port 7 and 10.
Signaling is equal to x3, and corresponding ports 8 and 9, the transmission number of plies is equal to 2, and scrambler identity is equal to 0；
This state instruction is advantageous in that, if enhanced down control channel (or downlink transfer of neighbor cell)
Port 7 is occupied, in order to evade resource contention, current descending 2 layer transmission can no longer use traditional port 7, can be with
Selection port 8 and 9.
Signaling is equal to x4, and corresponding ports 8 and 10, the transmission number of plies is equal to 2, and scrambler identity is equal to 0；
This state instruction is advantageous in that, if enhanced down control channel occupies port 7 and neighbor cell
Downlink transfer occupy with port 9, in order to evade resource contention, current descending 2 layer transmission can no longer use tradition
Port 7 and port 9, can be with selection port 8 and 10.
Signaling is equal to x5, and corresponding ports 9 and 10, the transmission number of plies is equal to 2, and scrambler identity is equal to 0；
This state instruction is advantageous in that, if enhanced down control channel (or downlink transfer of neighbor cell)
Port 7 and port 8 are occupied, in order to evade resource contention, current descending 2 layer transmission can no longer use traditional port
7 and port 8, can be with selection port 9 and 10.
Signaling is equal to x6, and corresponding ports 7,9 and 10, the transmission number of plies is equal to 2, and scrambler identity is equal to 0；
This state instruction is advantageous in that, if enhanced down control channel (or downlink transfer of neighbor cell)
Port 8 is occupied, in order to evade resource contention, current descending 2 layer transmission can no longer use traditional port 8, can be with
Selection port 7,9 and 10.
Signaling is equal to x7, and corresponding ports 8,9 and 10, the transmission number of plies is equal to 2, and scrambler identity is equal to 0；
This state instruction is advantageous in that, if enhanced down control channel (or downlink transfer of neighbor cell)
Port 7 is occupied, in order to evade resource contention, current descending 2 layer transmission can no longer use traditional port 7, can be with
Selection port 8,9 and 10.
Signaling is equal to x8, and corresponding ports 7,8 and 9, the transmission number of plies is equal to 3, and scrambler identity is equal to 0；
This state instruction is advantageous in that, if enhanced down control channel (or downlink transfer of neighbor cell)
Port 10 is occupied, in order to evade resource contention, current descending 2 layer transmission can no longer use traditional port 10, can
With selection port 7,8 and 9.
Signaling is equal to x9, and corresponding ports 7,8 and 10, the transmission number of plies is equal to 3, and scrambler identity is equal to 0；
This state instruction is advantageous in that, if enhanced down control channel (or downlink transfer of neighbor cell)
Port 9 is occupied, in order to evade resource contention, current descending 2 layer transmission can no longer use traditional port 9, can be with
Selection port 7,8 and 10.
Wherein, all it is the numeral between 0 to 15 from x1 to x9；
Wherein, described spreading codes information at least includes one of following information：Spread code length, specific spreading code.It is described
Reference signal information refer to reference signal pattern or reference signal expense.
Base station eNodeB will be described descending by downlink physical control channel or enhanced downlink physical control channel
Control information is sent to terminal UE.
It these are only that the present invention's is preferable to carry out case, be not intended to limit the invention, the present invention can also have other
Various embodiments, in the case of without departing substantially from spirit of the invention and its essence, those skilled in the art can be according to this hair
It is bright to make various corresponding changes and deformation, but these corresponding changes and deformation should all belong to appended claims of the invention
Protection domain.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and constituted
Network on, alternatively, the program code that they can be can perform with computing device be realized, it is thus possible to they are stored
Performed in the storage device by computing device, and in some cases, can be shown to be performed different from order herein
The step of going out or describe, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or
Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
Claims (10)
1. a kind of Downlink Control Information indicating means, it is characterised in that
Base station is that user equipment (UE) generates Downlink Control Information, and the Downlink Control Information includes indication signaling, the instruction
Signaling is used for the combined coding information of marker antenna port information and UE DRS (Dedicated Reference Signal) relevant parameters；
Wherein, the antenna port information value includes one of following antenna port set or its any combination：
Port 7 and 9；Port 7 and 10；Port 8 and 10；Port 7,9 and 10；Port 7,8 and 10；
The UE DRS (Dedicated Reference Signal)s relevant parameter includes one of following parameter or its any combination：The number of plies, the scrambler sequence of transmission
Row identity, spreading codes information, reference signal information.
2. the method as described in claim 1, it is characterised in that
The indication signaling has multiple state values, and a state value uniquely indicates that an antenna port set and one group of UE are special
Reference signal related parameter values.
3. the method as described in claim 1, it is characterised in that
The base station indicates the antenna port information and UE DRS (Dedicated Reference Signal)s by the indication signaling in descending control format
The combined coding of relevant parameter.
4. the method as described in claim 1, it is characterised in that
The spreading codes information at least includes one of following information：Spread code length, specific spreading code.
5. the method as described in claim 1, it is characterised in that
The reference signal information includes reference signal pattern or reference signal expense.
6. the method as described in claim 1,2 or 3, it is characterised in that
The base station is by downlink physical control channel or enhanced downlink physical control channel by the descending control of generation
Information processed is sent to the UE.
7. a kind of Downlink Control Information instruction device, it is characterised in that applied to the base station for supporting descending multilayer (MIMO) transmission,
Described device includes control information generation module, physical downlink channel control signal generation module and sending module, wherein：
The control information generation module is used for, and is UE generation Downlink Control Information, includes in the Downlink Control Information of generation
Indication signaling, the indication signaling is used for the combined coding letter of marker antenna port information and UE DRS (Dedicated Reference Signal) relevant parameters
Breath；Wherein described antenna port information value includes one of following antenna port set or its any combination：Port 7 and 9；Port
7 and 10；Port 8 and 10；Port 7,9 and 10；Port 7,8 and 10；
The physical downlink channel control signal generation module is used for, and Downlink Control Information is handled, physical down is obtained
Control channel signal；
The sending module is used for, and physical downlink channel control signal is sent into UE；
The UE DRS (Dedicated Reference Signal)s relevant parameter that the control information generation module is indicated include one of following parameter or its
Any combination：The number of plies, the scrambler sequence identity of transmission, spreading codes information, reference signal information；
Wherein, the spreading codes information at least includes one of following information：Spread code length, specific spreading code；
The reference signal information includes reference signal pattern or reference signal expense.
8. device as claimed in claim 7, it is characterised in that
The control information generation module has multiple states by multiple state values of the indication signaling, the indication signaling
Value a, state value uniquely indicates an antenna port set and one group of UE DRS (Dedicated Reference Signal) related parameter values.
9. device as claimed in claim 7 or 8, it is characterised in that
The control information generation module is used for, by the indication signaling in descending control format, indicates the antenna end message
The combined coding of breath and UE DRS (Dedicated Reference Signal) relevant parameters.
10. device as claimed in claim 7 or 8, it is characterised in that
The sending module is used for, by downlink physical control channel or enhanced downlink physical control channel by the physics
Downlink channel control signal is sent to the UE.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110296115.6A CN102315870B (en) | 2011-09-30 | 2011-09-30 | A kind of Downlink Control Information indicating means and device |
| PCT/CN2011/083924 WO2012155502A1 (en) | 2011-09-30 | 2011-12-14 | Method and apparatus for indicating downlink control information |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110296115.6A CN102315870B (en) | 2011-09-30 | 2011-09-30 | A kind of Downlink Control Information indicating means and device |
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| CN102315870A CN102315870A (en) | 2012-01-11 |
| CN102315870B true CN102315870B (en) | 2017-10-03 |
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| JP5890743B2 (en) * | 2012-03-09 | 2016-03-22 | Kddi株式会社 | Wireless communication system, terminal, transmission station, and wireless communication program |
| CN103313273B (en) * | 2012-03-13 | 2018-04-27 | 中兴通讯股份有限公司 | A kind of channel sending method, detection method, base station and terminal |
| US9055578B2 (en) * | 2012-03-15 | 2015-06-09 | Futurewei Technologies, Inc. | Systems and methods for UE-specific search space and ePDCCH scrambling |
| CN103581090B (en) * | 2012-07-26 | 2016-12-28 | 华为技术有限公司 | Pilot signal transmission method and device |
| CN103581869B (en) * | 2012-08-03 | 2018-11-09 | 中兴通讯股份有限公司 | control information processing method and device |
| CN103580837B (en) | 2012-08-03 | 2019-01-22 | 中兴通讯股份有限公司 | Control signaling transmission, detection method and base station and terminal |
| CN103580796A (en) * | 2012-08-03 | 2014-02-12 | 中兴通讯股份有限公司 | Receiving and sending method of enhanced physical downlink control channel and corresponding device |
| JP5881903B2 (en) * | 2012-09-25 | 2016-03-09 | パナソニック インテレクチュアル プロパティ コーポレーション オブアメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ | Wireless communication method for signaling CoMP state, and transmission point and user equipment therefor |
| CN103716121B (en) * | 2012-09-28 | 2019-03-08 | 上海诺基亚贝尔股份有限公司 | A kind of method and apparatus for determining the Downlink Control Information based on ePDCCH |
| CN103716274B (en) | 2012-09-29 | 2018-08-07 | 中兴通讯股份有限公司 | The transmission method and device of Downlink Control Information |
| CN103916349B (en) * | 2012-12-31 | 2018-03-23 | 中国移动通信集团公司 | Strengthen the collocation method and device of the demodulation reference mark of public search space |
| CN103945536B (en) * | 2013-01-17 | 2017-09-19 | 上海贝尔股份有限公司 | Support the carrier structure and resource allocation methods of separate configurations |
| CN104066183B (en) * | 2013-03-21 | 2018-02-16 | 中兴通讯股份有限公司 | The mapping of channel and demodulation method and device |
| CN103857053B (en) * | 2014-02-19 | 2018-05-01 | 大唐移动通信设备有限公司 | A kind of user scheduling method and device |
| CN106559199A (en) | 2015-09-25 | 2017-04-05 | 中兴通讯股份有限公司 | A kind of method and device of configurating channel state measurement pilot tone |
| CN106712915B (en) * | 2015-11-16 | 2020-06-30 | 中国移动通信集团公司 | Method, device, base station and terminal for sending demodulation reference signal |
| CN106255150B (en) * | 2016-08-22 | 2019-07-05 | 上海交通大学 | A method of the interference based on receiving end caching is eliminated and signal enhancing |
| WO2018049565A1 (en) * | 2016-09-13 | 2018-03-22 | 华为技术有限公司 | Data sending method, data receiving method and apparatus |
| CN109495224B (en) * | 2017-09-11 | 2021-04-27 | 电信科学技术研究院 | Information processing method, device, equipment and computer readable storage medium |
| WO2019095334A1 (en) * | 2017-11-17 | 2019-05-23 | 华为技术有限公司 | Method for sending downlink control information, terminal device, and network device |
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