CN103391155B - The collocation method of reference signal, base station and subscriber equipment - Google Patents
The collocation method of reference signal, base station and subscriber equipment Download PDFInfo
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- CN103391155B CN103391155B CN201210145271.7A CN201210145271A CN103391155B CN 103391155 B CN103391155 B CN 103391155B CN 201210145271 A CN201210145271 A CN 201210145271A CN 103391155 B CN103391155 B CN 103391155B
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- dmrs
- arrangement set
- dmrs arrangement
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
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Abstract
The present embodiments relate to the collocation method of DMRS, base station and subscriber equipment.The collocation method of reference signal includes: base station sends ePDCCH with DMRS arrangement set Y or C0 to user equipment (UE), sends PDSCH with D0 to UE；Base station sends DMRS to UE and reconfigures signaling, and wherein DMRS reconfigures signaling for the DMRS arrangement set being used for PDSCH is reconfigured for D1 from D0；Base station, after sending and reconfiguring signaling, receives confirmations signaling that UE returns or before default delay threshold time-out, base station continues, with Y-direction user equipment (UE) transmission ePDCCH, to send PDSCH with D0 to UE；Receive UE return confirmation signaling or after delay threshold time-out, base station sends PDSCH with D1 to UE.According to embodiments of the present invention, DMRS can be eliminated and reconfigure the DMRS fuzzy problem of period, improve the efficiency of system.
Description
Technical field
The present embodiments relate to wireless communication field, more particularly, it relates to the configuration side of reference signal
Method, base station and subscriber equipment.
Background technology
At current wireless communication system, such as Long Term Evolution (Long Term Evolution is called for short LTE)
In system, enhancing Physical Downlink Control Channel (the Enhanced Physical that base station sends to subscriber equipment
Downlink Control Channel, is called for short ePDCCH) and Physical Downlink Shared Channel (Physical
Downlink Shared Channel, is called for short PDSCH) demodulated reference signal that used
(Demodulation Reference Signal is called for short DMRS) uses identical formula to produce.
EPDCCH is to mark off part resource in traditional PDSCH channel to believe for transmitting descending control
Breath, controls the resource of information with expanded downstream on the basis of tradition PDCCH.In communication process, connect
Receiving end can receive the DMRS arrangement set of transmitting terminal configuration, containing one or more DMRS in this set
Sequence, in each communication process, UE is by reading the servicing channel identifier sequence number of ePDCCH
(Service Channel Identifier n is called for short n_SCID) determines it is DMRS arrangement set on earth
In which DMRS sequence work.Such as, containing two DRMS sequences in DMRS arrangement set
Row, then as n_SCID=0, first DMRS sequence in gathering with DMRS, n_SCID
With second when=1.The DMRS of PDSCH is used to carry out PDSCH demodulation, UE according to
DMRS carries out channel estimation, then carries out PDSCH demodulation with the channel estimation value obtained.LTE
R11(version 11) system exists the problem that the DMRS arrangement set of PDSCH is fuzzy, i.e. exist
DMRS arrangement set reconfigures period, subscriber equipment (User Equipment is called for short UE) demodulation
During PDSCH, UE use reconfigure before DMRS arrangement set still reconfigure after DMRS sequence
Row set.
Summary of the invention
The embodiment of the present invention proposes the collocation method of a kind of reference signal, is used for by treatment by stages
The DMRS arrangement set of PDSCH, solves DMRS and reconfigures period UE demodulation PDSCH's
DMRS fuzzy problem, it is ensured that the proper communication between base station (eNodeB) and UE.
On the one hand, the embodiment of the present invention proposes the collocation method of a kind of reference signal, and described method includes:
Base station is with the first demodulated reference signal DMRS arrangement set (Y) or the 2nd DMRS sequence sets
Close (C0) and send enhancing Physical Downlink Control Channel ePDCCH to user equipment (UE), with the 3rd DMRS
Arrangement set (D0) sends Physical Downlink Shared Channel PDSCH to UE；
Described base station sends DMRS to described UE and reconfigures signaling, and wherein said DMRS reconfigures
Signaling is for being used for the DMRS arrangement set of PDSCH from described 3rd DMRS arrangement set
(D0) the 4th DMRS arrangement set (D1) it is reconfigured for；
Base station is after sending and reconfiguring signaling, and receive that described UE returns heavily joins for described DMRS
Confidence order confirmations signaling or before default delay threshold time-out, described base station continuation with first
DMRS arrangement set (Y) sends ePDCCH to user equipment (UE), with described 3rd DMRS sequence
Row set (D0) send PDSCH to described UE；
Receiving the described confirmation signaling of described UE return or after described delay threshold time-out, institute
State base station and send PDSCH with described 4th DMRS arrangement set (D1) to described UE.
On the other hand, the embodiment of the present invention proposes the collocation method of a kind of reference signal, described method bag
Include:
Base station sends ePDCCH with a DMRS arrangement set (C0) to UE, with the 2nd DMRS
Arrangement set (D0) sends PDSCH to UE；
Described base station sends DMRS to described UE and reconfigures signaling, and wherein said DMRS reconfigures
Signaling is for being used for the DMRS arrangement set of PDSCH from described 2nd DMRS arrangement set
(D0) the 3rd DMRS arrangement set (D1) it is reconfigured for；
Base station is after sending and reconfiguring signaling, and receive that described UE returns heavily joins for described DMRS
The confirmations signaling of confidence order or before default delay threshold time-out, the continuation of described base station is with described the
One DMRS arrangement set (C0) sends ePDCCH to UE, with described 2nd DMRS sequence sets
Close (D0) and send PDSCH to described UE；
Receiving the described confirmation signaling of described UE return or after described delay threshold time-out, institute
State base station and send PDSCH with described 3rd DMRS arrangement set (D1) to described UE.
On the other hand, the embodiment of the present invention proposes the collocation method of a kind of reference signal, described method bag
Include:
User equipment (UE) is with a DMRS arrangement set (Y) and the 2nd DMRS arrangement set (C0)
Receive the ePDCCH that base station sends, receive described base station with the 3rd DMRS arrangement set (D0) and send out
The Physical Downlink Shared Channel PDSCH sent；
Described UE receives the DMRS of described base station transmission and reconfigures signaling, wherein said DMRS weight
Configuration signal is for being used for the DMRS arrangement set of PDSCH from described 3rd DMRS sequence sets
Close (D0) and be reconfigured for the 4th DMRS arrangement set (D1)；
Described UE is with described 5th DMRS arrangement set (C1) and a described DMRS sequence sets
Close (Y) and receive ePDCCH；
Described UE determines whether to be properly received with described 5th DMRS arrangement set (C1) for the first time
EPDCCH or be properly received PDSCH with described 4th DMRS arrangement set (D1)；
It is properly received ePDCCH with described 5th DMRS arrangement set (C1) for the first time at described UE
Or before being properly received PDSCH with described 4th DMRS arrangement set (D1), if described UE
Being properly received ePDCCH with a described DMRS arrangement set (Y), the most described UE is with described
Three DMRS arrangement sets (D0) receive PDSCH, if described UE is with described 5th DMRS sequence
Row set (C1) are properly received ePDCCH, and the most described UE is with described 4th DMRS arrangement set
(D1) PDSCH is received.
On the other hand, the embodiment of the present invention proposes the collocation method of a kind of reference signal, described method bag
Include:
User equipment (UE) receives, with a DMRS arrangement set (C0), the ePDCCH that base station sends,
The PDSCH that described base station sends is received with the 2nd DMRS arrangement set (D0)；
Described UE receives the DMRS of described base station transmission and reconfigures signaling, wherein said DMRS weight
Configuration signal is for being used for the DMRS arrangement set of PDSCH from described 2nd DMRS sequence sets
Close (D0) and be reconfigured for the 3rd DMRS arrangement set (D1)；
Described UE is with a described DMRS arrangement set (C0) and the 4th DMRS arrangement set (C1)
Receive ePDCCH；
Described UE determines whether to be properly received with described 4th DMRS arrangement set (C1) for the first time
EPDCCH or be properly received PDSCH with described 3rd DMRS arrangement set (D1)；
It is properly received ePDCCH with described 4th DMRS arrangement set (C1) for the first time at described UE
Or before being properly received PDSCH with described 3rd DMRS arrangement set (D1), if described UE
Being properly received ePDCCH with a described DMRS arrangement set (C0), the most described UE is with described
2nd DMRS arrangement set (D0) receives PDSCH, if described UE is with described 4th DMRS
Arrangement set (C1) is properly received ePDCCH, and the most described UE is with described 3rd DMRS sequence sets
Close (D1) and receive PDSCH.
On the other hand, the embodiment of the present invention proposes a kind of base station, and described base station includes:
Transmitting element, for the first demodulated reference signal DMRS arrangement set (Y) or the 2nd DMRS
Arrangement set (C0) sends to user equipment (UE) and strengthens Physical Downlink Control Channel ePDCCH, with the
Three DMRS arrangement sets (D0) send Physical Downlink Shared Channel PDSCH to UE；
Described transmitting element reconfigures signaling, wherein said DMRS for sending DMRS to described UE
Reconfigure signaling for indicating DMRS arrangement set from described 3rd DMRS arrangement set (D0)
It is reconfigured for described 4th DMRS arrangement set (D1)；
Judging unit, is used for judging that described base station is after sending and reconfiguring signaling, if receive described
The confirmation signaling reconfiguring signaling for described DMRS that UE returns, or be used for judging described transmission
Unit sends after described DMRS reconfigures signaling whether exceed default delay threshold；
The confirmation signaling reconfiguring signaling for described DMRS that described UE returns is received in described base station
Or described transmitting element send described DMRS reconfigure signaling after exceed described delay threshold it
Before, described transmitting element continues to send out to user equipment (UE) with a described DMRS arrangement set (Y)
Send ePDCCH, send PDSCH with described 3rd DMRS arrangement set (D0) to described UE
Receive the described confirmation signaling of described UE return in described base station or send at described transmitting element
After described DMRS exceedes described delay threshold after reconfiguring signaling, described transmitting element is with described
4th DMRS arrangement set (D1) sends PDSCH to described UE.
On the other hand, the embodiment of the present invention proposes a kind of base station, and described base station includes:
Transmitting element, for setting to user with the first demodulated reference signal DMRS arrangement set (C0)
Standby UE sends ePDCCH, sends physical down altogether with the 2nd DMRS arrangement set (D0) to UE
Enjoy channel PDSCH；
Described transmitting element reconfigures signaling, wherein said DMRS for sending DMRS to described UE
Reconfigure signaling for indicating DMRS arrangement set from described 2nd DMRS arrangement set (D0)
It is reconfigured for described 3rd DMRS arrangement set (D1)；
Judging unit, is used for judging that described base station is after sending and reconfiguring signaling, if receive described
The confirmation signaling reconfiguring signaling for described DMRS that UE returns, or be used for judging described transmission
Unit sends after described DMRS reconfigures signaling whether exceed default delay threshold；
The confirmation signaling reconfiguring signaling for described DMRS that described UE returns is received in described base station
Or described transmitting element send described DMRS reconfigure signaling after exceed described delay threshold it
Before, described transmitting element continues with a described DMRS arrangement set (C0) to user equipment (UE)
Send ePDCCH, send PDSCH with described 2nd DMRS arrangement set (D0) to described UE；
Receive the described confirmation signaling of described UE return in described base station or send at described transmitting element
After described DMRS exceedes described delay threshold after reconfiguring signaling, described transmitting element is with described
3rd DMRS arrangement set (D1) sends PDSCH to described UE.
On the other hand, the embodiment of the present invention proposes a kind of subscriber equipment, and described subscriber equipment includes:
Receive unit, for the first demodulated reference signal DMRS arrangement set (Y) and the 2nd DMRS
Arrangement set (C0) receives the ePDCCH that base station sends, with the 3rd DMRS arrangement set (D0)
Receive the PDSC H that described base station sends；
Described reception unit is additionally operable to receive the DMRS of described base station transmission and reconfigures signaling, Qi Zhongsuo
State DMRS to reconfigure signaling and will be used for the DMRS arrangement set of PDSCH from described for instruction
Three DMRS arrangement sets (D0) are reconfigured for the 4th DMRS arrangement set (D1)；
Described reception unit is additionally operable to described 5th DMRS arrangement set (C1) and described first
DMRS arrangement set (Y) receives ePDCCH；
First judging unit, is used for determining that described reception unit is the most for the first time with described 5th DMRS
Arrangement set (C1) is properly received ePDCCH or with described 4th DMRS arrangement set (D1) just
Really receive PDSCH；
Second judging unit, is used for determining that described reception unit is with described 5th DMRS arrangement set (C1)
It is properly received ePDCCH or correctly connects with a described DMRS arrangement set (Y) with described UE
Receive ePDCCH,
Determine that described reception unit is for the first time with described 5th DMRS sequence at described first judging unit
Set (C1) is properly received ePDCCH or correctly connects with described 4th DMRS arrangement set (D1)
Before receiving PDSCH, if described second judging unit is defined as described reception unit with described first
DMRS arrangement set (Y) is properly received ePDCCH, and the most described reception unit is with described 3rd DMRS
Arrangement set (D) receive PDSCH, if described second judging unit be defined as described reception unit with
Described 5th DMRS arrangement set (C1) is properly received ePDCCH, and the most described reception unit is with institute
State the 4th DMRS arrangement set (D1) and receive PDSCH.
On the other hand, the embodiment of the present invention proposes a kind of subscriber equipment, and described subscriber equipment includes:
Receive unit, receive base station for the first demodulated reference signal DMRS arrangement set (C0) and send out
The ePDCCH sent, receives, with the 2nd DMRS arrangement set (D0), the PDSCH that described base station sends；
Described reception unit is additionally operable to receive the DMRS of described base station transmission and reconfigures signaling, Qi Zhongsuo
State DMRS to reconfigure signaling and will be used for the DMRS arrangement set of PDSCH from described for instruction
Two DMRS arrangement sets (D0) are reconfigured for the 3rd DMRS arrangement set (D1)；
Described reception unit is additionally operable to described DMRS arrangement set (C0) and the 4th DMRS
Arrangement set (C1) receives ePDCCH；
First judging unit, is used for determining that described reception unit is the most for the first time with described 4th DMRS
Arrangement set (C1) is properly received ePDCCH or with described 3rd DMRS arrangement set (D1) just
Really receive PDSCH；
Second judging unit, is used for determining that described reception unit is with a described DMRS arrangement set (C0)
It is properly received ePDCCH or correct with described 4th DMRS arrangement set (C1) with described UE
Receive ePDCCH,
Determine that described reception unit is for the first time with described 4th DMRS sequence at described first judging unit
Set (C1) is properly received ePDCCH or correctly connects with described 3rd DMRS arrangement set (D1)
Before receiving PDSCH, if described second judging unit is defined as described reception unit with described first
DMRS arrangement set (C0) is properly received ePDCCH, and the most described reception unit is with described 2nd DMRS
Arrangement set (D0) receives PDSCH, if described second judging unit is defined as described reception unit
Be properly received ePDCCH with described 4th DMRS arrangement set (C1), the most described reception unit with
Described 3rd DMRS arrangement set (D1) receives PDSCH.
According to embodiments of the present invention, by segmentation DMRS reconfiguration course each rank of corresponding configuration
The DMRS that section demodulation ePDCCH and PDSCH is used, can eliminate DMRS and reconfigure the phase
Between, base station sends and UE receives the DMRS fuzzy problem that PDSCH is used, and improves system
Efficiency, reduce resource overhead, it is ensured that proper communication.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be to embodiment or existing skill
In art description, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below
It is only some embodiments of the present invention, for those of ordinary skill in the art, is not paying creation
Property work on the premise of, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is DMRS reconfiguration course segmentation stage schematic diagram according to embodiments of the present invention；
Fig. 2 is the schematic flow diagram of method according to embodiments of the present invention；
Fig. 3 is the schematic flow diagram of method according to embodiments of the present invention；
Fig. 4 is the schematic flow diagram of method according to embodiments of the present invention；
Fig. 5 is the schematic flow diagram of method according to embodiments of the present invention；
Fig. 6 is the schematic configuration diagram of base station according to embodiments of the present invention；
Fig. 7 is the schematic configuration diagram of subscriber equipment according to embodiments of the present invention；
Fig. 8 is the schematic configuration diagram of base station according to embodiments of the present invention；
Fig. 9 is the schematic configuration diagram of subscriber equipment according to embodiments of the present invention.
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 be a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making wound
The every other embodiment obtained under the property made work premise, broadly falls into the scope of protection of the invention.
Fig. 1 is the schematic diagram stage by stage of DMRS reconfiguration course according to embodiments of the present invention.From Fig. 1
It can be seen that DMRS reconfiguration course can be subdivided into four-stage, respectively from base station side and UE side
From the point of view of, the division in each stage is slightly different.
In base station side: the first stage, before base station transmission DMRS reconfigures signaling, base station uses C0
Or Y-direction UE sends ePDCCH, D0 is used to send PDSCH to UE；Second stage, base station to
UE sends DMRS and reconfigures signaling and be successfully received this to UE and reconfigure signaling, weight described here
Configuration signal is for indicating UE to be reconfigured for from D0 by the DMRS arrangement set being used for PDSCH
D1；Phase III, it is successfully received this from UE and reconfigures signaling and receive UE to base station and complete this and heavy join
The confirmation put or base station reconfigure after signaling through delay threshold M preset described in sending；The
Four stages, base station receive UE complete this confirmation reconfigured or base station send described in reconfigure signaling it
After after default delay threshold M.
From the point of view of UE side, the first stage, before base station transmission DMRS reconfigures signaling, base station uses
C0 or Y-direction UE send ePDCCH, use D0 to send PDSCH to UE；Second stage, base
Stand and send DMRS to UE and reconfigure signaling and be successfully received this to UE and reconfigure signaling, described here
Reconfigure signaling for indicating UE again to be joined from D0 by the DMRS arrangement set being used for PDSCH
It is set to D1；Phase III, it is successfully received this from UE and reconfigures signaling and successfully use for the first time to UE
C1 receives ePDCCH or receives PDSCH with D1；Fourth stage, UE is successfully received this
Reconfigure signaling successfully receive ePDCCH with C1 to UE or receive with D1 for the first time
After PDSCH.
DMRS reconfiguration course is subdivided into four-stage, each stage base station side can be made a concrete analysis of
The DMRS arrangement set used with UE side, to be used for PDSCH in clear and definite DMRS reconfiguration course
DMRS arrangement set.Concrete application scenarios below in conjunction with the embodiment of the present invention explains in detail this
The technical scheme of inventive embodiments.
A kind of applied field is that ePDCCH can use the fixing incompatible demodulation of DMRS sequence sets, i.e. exists
In this case, base station uses this fixing DMRS arrangement set to send ePDCCH to UE, and
UE is also adopted by the DMRS sequence sets incompatible reception ePDCCH that this is fixing.With reference to shown in Fig. 1
The DMRS reconfiguration course of ePDCCH and PDSCH.In order to describe simplicity, before reconfiguring,
For send and receive the DMRS arrangement set of ePDCCH and PDSCH be briefly referred to as C0 and
D0, and after reconfiguring, for sending and receive the DMRS sequence sets of ePDCCH and PDSCH
Close and be called for short C1 and D1, Y respectively and then represent above-mentioned fixing for sending and receiving ePDCCH's
DMRS arrangement set.According to the configuration of existing lte-a system, it is used for sending and receiving ePDCCH
Corresponding relation is there is with the DMRS arrangement set of PDSCH, i.e. before reconfiguring, C0 and D0
Correspondence, and after reconfiguring, C1 with D1 is corresponding.In the scheme of the embodiment of the present invention, mainly close
Note is used for the DMRS arrangement set of PDSCH at the fuzzy problem reconfiguring period.
According to the divided stages of Fig. 1, the embodiment of the present invention proposes the collocation method of a kind of reference signal,
The exemplary flow of the method is as shown in Figure 2.
In fig. 2, method 200 includes:
210: base station is with the first demodulated reference signal DMRS arrangement set Y or the 2nd DMRS sequence
Set C0 sends ePDCCH to user equipment (UE), with the 3rd DMRS arrangement set D0 to UE
Send PDSCH；
220: described base station sends DMRS to described UE and reconfigures signaling, wherein said DMRS weight
Configuration signal is for being used for the DMRS arrangement set of PDSCH from described 3rd DMRS sequence sets
Close D0 and be reconfigured for the 4th DMRS arrangement set D1；
230: base station after sending and reconfiguring signaling, receive that described UE returns for described DMRS
Reconfiguring the confirmation signaling of signaling or before default delay threshold time-out, described base station is continued with the
One DMRS arrangement set Y-direction user equipment (UE) sends ePDCCH, with described 3rd DMRS sequence
Row set D0 sends PDSCH to described UE；
240: receiving the described confirmation signaling of described UE return or in described delay threshold time-out
After, described base station sends PDSCH with described 4th DMRS arrangement set D1 to described UE.
Corresponding with the method 200 of base station side, from the point of view of UE side, the embodiment of the present invention proposes a seed ginseng
Examining the collocation method 300 of signal, the exemplary flow of the method is as shown in Figure 3.
As it is shown on figure 3, method 300 includes:
310:UE receives base with a DMRS arrangement set Y and the 2nd DMRS arrangement set C0
Stand the ePDCCH sent, and receives what described base station sent with the 3rd DMRS arrangement set D0
PDSCH；
320:UE receives the DMRS of described base station transmission and reconfigures signaling, wherein said DMRS weight
Configuration signal is for being used for the DMRS arrangement set of PDSCH from described 3rd DMRS sequence sets
Close D0 and be reconfigured for the 4th DMRS arrangement set D1；
330:UE connects with the 5th DMRS arrangement set C1 and a described DMRS arrangement set Y
Receive ePDCCH；
340:UE determines whether to be properly received with described 5th DMRS arrangement set C1 for the first time
EPDCCH or be properly received PDSCH with described 4th DMRS arrangement set D1；
350: be properly received with described 5th DMRS arrangement set C1 for the first time at described UE
EPDCCH or before being properly received PDSCH with described 4th DMRS arrangement set D1, if institute
Stating UE and be properly received ePDCCH with a described DMRS arrangement set Y, the most described UE is with described
3rd DMRS arrangement set D0 receives PDSCH, if described UE is with described 5th DMRS sequence
Row set C1 is properly received ePDCCH, and the most described UE is with described 4th DMRS arrangement set D1
Receive PDSCH.
Below in conjunction with the divided stages figure shown in Fig. 1, illustrate method 200 He of the embodiment of the present invention
300。
In the first stage of base station side, base station uses C0 and Y-direction UE to send ePDCCH, uses D0
PDSCH is sent to UE.In the first stage of UE side, UE correspondingly uses C0 and Y to receive
EPDCCH, and use D0 to receive PDSCH.
When DMRS reconfiguration course starts, base station sends DMRS to UE and reconfigures signaling, should
The purpose of signaling is that from D0, the DMRS being used for PDSCH is reconfigured for D1.This indicates base station
Side and UE side simultaneously enter second stage.In the second stage of base station side, base station changes into using Y-direction
UE sends ePDCCH, but still uses D0 to send PDSCH to UE.As it was previously stated, in Fig. 1 institute
Showing under scene, base station and UE can use fixing DMRS arrangement set Y to enter ePDCCH
Row demodulation.From the point of view of base station side, base station, in second stage and phase III, i.e. sends from base station to UE
DMRS reconfigures signaling and receives confirmation that UE completes to reconfigure or send to base station to base station and reconfigure
Till making delay threshold time-out through default time delay after signaling, base station all keeps using Y-direction UE
Send ePDCCH, use D0 to send PDSCH to UE.In reason is this period of time, base station is also
Not can determine that UE is complete reconfiguration course, i.e. base station does not knows whether UE can receive with D1
PDSCH.In the fourth stage of base station side, being i.e. designed as UE in system needs to reconfigure DMRS
In the case of signaling confirms, base station receives when UE is successfully completed this confirmation reconfigured and rises, or
System be designed to UE without DMRS reconfigured signaling confirming in the case of, from base station to
UE sends after this DMRS reconfigures signaling and reaches delay threshold M through default time delay, such as
Rising during 150 Transmission Time Intervals (Transmission Time Interval is called for short TTI), base station is recognized
It is successfully completed for reconfiguring for the DMRS of PDSCH, D1 can be used to send to UE
PDSCH.Therefore, from the beginning of base station side fourth stage, base station uses C1 or Y-direction UE to send
EPDCCH, and use D1 to send PDSCH to UE.
In first stage and the second stage of UE side, UE uses C0 and Y to receive ePDCCH, and
And use D0 to receive PDSCH, until the described DMRS that UE is successfully received base station transmission heavily joins
Confidence makes.The described DMRS being successfully received base station transmission from UE reconfigures signaling to UE for the first time
It is properly received ePDCCH with C1 or has correctly received PDSCH with D1, i.e. on the 3rd rank of UE side
Section, UE uses C1 and Y to receive ePDCCH.It has to be noted here that UE can be according to default algorithm
Determine C1 according to D1, or determine by other means or obtain C1 from base station.UE makes
While receiving ePDCCH with C1 and Y, it is thus necessary to determine that UE is properly received with C1 the most for the first time
EPDCCH or have correctly received PDSCH with D1.If UE uses Y to be properly received ePDCCH,
Then UE uses D0 to receive PDSCH.If UE uses C1 to have correctly received ePDCCH, then use
D1 receives PDSCH.
From the point of view of from Fig. 1, the fourth stage of base station side is always later than the fourth stage of UE side, because only
After having UE to confirm to have reconfigured or exceeded described default delay threshold, base station just begins with
C1 sends ePDCCH, and hereafter UE is only possible to use C1 to receive ePDCCH.
C1 is used to be properly received ePDCCH or use D1 to be successfully received PDSCH for the first time at UE
Rising, i.e. in the fourth stage of UE side, reconfiguring of D0 to D1 is complete, then UE uses C1
Or Y receives ePDCCH, D1 is used to receive PDSCH.
By segmentation DMRS reconfiguration course, by fixing DMRS arrangement set Y, it is ensured that
Each stage UE all can use correct DMRS sequence sets incompatible reception ePDCCH and PDSCH.
The another kind of application scenarios of the embodiment of the present invention is that in system, Non-precondition uses fixing DMRS
Sequence sets incompatible demodulation ePDCCH.In this case, for the divided stages figure of Fig. 1,
The first stage of base station side, base station can only use C0 to send ePDCCH, and in the first of UE side
In the stage, UE can only use C0 to receive ePDCCH.
According to this application scenarios, the embodiment of the present invention proposes the collocation method of another kind of reference signal,
As shown in Figure 4.Method 400 includes:
410: base station sends ePDCCH with a DMRS arrangement set C0 to UE, with the 2nd DMRS
Arrangement set D0 sends PDSCH to UE；
420: described base station sends DMRS to described UE and reconfigures signaling, wherein said DMRS weight
Configuration signal is for being used for the DMRS arrangement set of PDSCH from described 2nd DMRS sequence sets
Close D0 and be reconfigured for the 3rd DMRS arrangement set D1；
430: base station after sending and reconfiguring signaling, receive that described UE returns for described DMRS
Reconfiguring the confirmation signaling of signaling or before default delay threshold time-out, described base station is continued with institute
State a DMRS arrangement set C0 and send ePDCCH to UE, with described 2nd DMRS sequence sets
Close D0 and send PDSCH to described UE；
430: receiving the described confirmation signaling of described UE return or in described delay threshold time-out
After, described base station sends PDSCH with described 3rd DMRS arrangement set D1 to described UE.
Corresponding with the method 400 of base station side, from the point of view of UE side, the embodiment of the present invention proposes a seed ginseng
Examining the collocation method 500 of signal, the exemplary flow of the method is as shown in Figure 5.
As it is shown in figure 5, method 500 includes:
510:UE receives, with a DMRS arrangement set C0, the ePDCCH that base station sends, with the
Two DMRS arrangement set D0 receive the PDSCH that described base station sends；
520: the described UE DMRS receiving the transmission of described base station reconfigures signaling, wherein said DMRS
Reconfigure signaling for the DMRS arrangement set by being used for PDSCH from described 2nd DMRS sequence
Set D0 is reconfigured for the 3rd DMRS arrangement set D1；
530: described UE with a described DMRS arrangement set C0 and described 4th DMRS sequence
Set C1 receives ePDCCH；
540: described UE determines whether to receive with described 4th DMRS arrangement set C1 for the first time
EPDCCH or be properly received PDSCH with described 3rd DMRS arrangement set D1；
550: receive ePDCCH with described 4th DMRS arrangement set C1 for the first time at described UE
Or before being properly received PDSCH with described 3rd DMRS arrangement set D1, if described UE with
A described DMRS arrangement set C0 is properly received ePDCCH, and the most described UE is with described second
DMRS arrangement set D0 receives PDSCH, if described UE is with described 4th DMRS sequence sets
Closing C1 and be properly received ePDCCH, the most described UE receives with described 3rd DMRS arrangement set D1
PDSCH。
Below in conjunction with the divided stages figure shown in Fig. 1, illustrate method 400 He of the embodiment of the present invention
500。
In the first stage of base station side, base station uses C0 to send ePDCCH to UE, use D0 to
UE sends PDSCH.In the first stage of UE side, UE correspondingly uses C0 to receive ePDCCH,
D0 is used to receive PDSCH.
When DMRS reconfiguration course starts, base station sends DMRS to UE and reconfigures signaling, should
The purpose of signaling is that from D0, the DMRS being used for PDSCH is reconfigured for D1.Due to this application
Under scene, base station side can not send ePDCCH, institute by fixing DMRS arrangement set Y-direction UE
With base station side in first, second, and third stage, base station all uses C0 to send ePDCCH to UE,
D0 is used to send PDSCH to UE.Reason is the these three stage, and base station can not determine UE
Complete reconfiguration course, i.e. base station does not knows whether UE can receive PDSCH with D1.In base station side
Fourth stage, being i.e. designed as UE in system needs to reconfigure DMRS in the case of signaling confirms,
Base station receives when UE is successfully completed this confirmation reconfigured and rises, or is designed to UE without right in system
DMRS reconfigures in the case of signaling confirms, sends this DMRS from base station to UE and reconfigures letter
Reaching delay threshold M through default time delay after order, such as, rise during 150 TTI, pin is thought in base station
The DMRS of PDSCH is reconfigured and is successfully completed, D1 can be used to send PDSCH to UE.
Therefore, from the beginning of base station side fourth stage, base station uses C1 to send ePDCCH to UE, and uses
D1 sends PDSCH to UE.
In first stage and the second stage of UE side, UE uses C0 to receive ePDCCH, and uses
D0 receives PDSCH, until the described DMRS that UE is successfully received base station transmission reconfigures signaling.
The described DMRS being successfully received base station transmission from UE to UE with C1 is the most just reconfiguring signaling
Really receive ePDCCH or have correctly received PDSCH with D1, i.e. in the phase III of UE side,
UE uses C0 and C1 to receive ePDCCH.It has to be noted here that UE can come according to default algorithm
Determine C1 according to D1, or determine by other means or obtain C1 from base station.UE is using
While C1 and C1 receives ePDCCH, it is thus necessary to determine that UE has correctly received with C1 the most for the first time
EPDCCH or have correctly received PDSCH with D1.If UE uses C0 to be properly received ePDCCH,
Then UE uses D0 to receive PDSCH.If UE uses C1 to have correctly received ePDCCH, then use
D1 receives PDSCH.
As it has been described above, the fourth stage of base station side is always later than the fourth stage of UE side.
C1 is used to have correctly received ePDCCH or use D1 to be successfully received for the first time at UE
PDSCH rises, and i.e. in the fourth stage of UE side, reconfiguring of D0 to D1 is complete, then UE
Use C1 to receive ePDCCH, use D1 to receive PDSCH.
According to embodiments of the present invention, by segmentation DMRS reconfiguration course each rank of corresponding configuration
The DMRS that section demodulation ePDCCH and PDSCH is used, can eliminate DMRS and reconfigure the phase
Between, base station sends and UE receives the DMRS fuzzy problem that PDSCH is used, and improves system
Efficiency, reduce resource overhead, it is ensured that proper communication.
According to embodiments of the present invention, it is also proposed that realize base station and the user of the method for the embodiment of the present invention
Equipment.
Corresponding with the first application scenarios, i.e. ePDCCH can use fixing DMRS arrangement set
Demodulating, the base station that the embodiment of the present invention proposes is as shown in Figure 6.Base station 600 includes:
Transmitting element 610, for the first demodulated reference signal DMRS arrangement set Y or second
DMRS arrangement set C0 sends ePDCCH to user equipment (UE), with the 3rd DMRS arrangement set
D0 sends PDSCH to UE；
Described transmitting element 610 reconfigures signaling for sending DMRS to described UE, wherein said
DMRS reconfigures signaling for indicating DMRS arrangement set from described 3rd DMRS arrangement set
D0 is reconfigured for the 4th DMRS arrangement set D1；
Judging unit 620, is used for judging that described base station is after sending and reconfiguring signaling, if receive institute
State the confirmation signaling reconfiguring signaling for described DMRS that UE returns, or be used for judging described sending out
Send unit sends after described DMRS reconfigures signaling whether exceed default delay threshold；
The confirmation signaling reconfiguring signaling for described DMRS that described UE returns is received in described base station
Or described transmitting element send described DMRS reconfigure signaling after exceed described delay threshold it
Before, described transmitting element 610 continues to send with described DMRS arrangement set Y-direction UE
EPDCCH, sends PDSCH with described 3rd DMRS arrangement set D0 to described UE；
Receive the described confirmation signaling of described UE return in described base station or send at described transmitting element
After described DMRS exceedes described delay threshold after reconfiguring signaling, described transmitting element is with described
4th DMRS arrangement set D1 sends PDSCH to described UE.
According to embodiments of the present invention, receive in described base station described UE return described confirmation signaling or
Described transmitting element 610 send exceed after described DMRS reconfigures signaling described delay threshold it
After, described transmitting element 610 is with described DMRS arrangement set Y or a 5th DMRS sequence sets
Close C1 and send ePDCCH to described UE.
Corresponding with the base station 600 shown in Fig. 6, the subscriber equipment of the embodiment of the present invention is as shown in Figure 7.With
Family equipment 700 includes:
Receive unit 710, for the first demodulated reference signal DMRS arrangement set Y and second
DMRS arrangement set C0 receives the ePDCCH that base station sends, with the 3rd DMRS arrangement set D0
Receive the PDSCH that described base station sends；
Described reception unit 710 is additionally operable to receive the DMRS of described base station transmission and reconfigures signaling, its
Described in DMRS reconfigure signaling for instruction will be used for the DMRS arrangement set of PDSCH from institute
State the 3rd DMRS arrangement set D0 and be reconfigured for the 4th DMRS arrangement set D1；
Described reception unit 710 is additionally operable to a 5th DMRS arrangement set C1 and described DMRS
Arrangement set Y receives ePDCCH；
First judging unit 720, is used for determining that described reception unit is the most for the first time with the described 5th
DMRS arrangement set C1 is properly received ePDCCH or with described 4th DMRS arrangement set D1 just
Really receive PDSCH；
Second judging unit 730, is used for determining that described reception unit is with described 5th DMRS arrangement set
C1 is properly received ePDCCH or correctly connects with a described DMRS arrangement set Y with described UE
Receive ePDCCH,
Determine that described reception unit 710 is for the first time with the described 5th at described first judging unit 720
DMRS arrangement set C1 is properly received ePDCCH or with described 4th DMRS arrangement set D1 just
Before really receiving PDSCH, if described second judging unit 720 is defined as described reception unit 710
Be properly received ePDCCH with described 2nd DMRS arrangement set Y, the most described reception unit 710 with
Described 3rd DMRS arrangement set D0 receives PDSCH, if described second judging unit 730 is true
It is set to described reception unit 710 and is properly received ePDCCH with described 5th DMRS arrangement set C1,
The most described reception unit 710 receives PDSCH with described 4th DMRS arrangement set D1.
According to embodiments of the present invention, it is defined as described reception unit 710 at described first judging unit 720
It is properly received ePDCCH or with the described 3rd for the first time with described 5th DMRS arrangement set C1
In the case of DMRS arrangement set D1 is properly received PDSCH,
Described reception unit 710 is for described 5th DMRS arrangement set C1 and described first
DMRS arrangement set Y receives ePDCCH, receives with described 4th DMRS arrangement set D1
PDSCH。
Corresponding with the first application scenarios, i.e. ePDCCH can not use fixing DMRS arrangement set
Demodulating, the base station that the embodiment of the present invention proposes is as shown in Figure 8.Base station 800 includes:
Transmitting element 810, for sending out to UE with the first demodulated reference signal DMRS arrangement set C0
Send ePDCCH, send PDSCH with the 2nd DMRS arrangement set D0 to UE；
Described transmitting element 810 reconfigures signaling for sending DMRS to described UE, wherein said
DMRS reconfigures signaling for indicating DMRS arrangement set from described 2nd DMRS arrangement set
D0 is reconfigured for described 3rd DMRS arrangement set (D1)；
Judging unit 820, is used for judging that described base station is after sending and reconfiguring signaling, if receive institute
State the confirmation signaling reconfiguring signaling for described DMRS that UE returns, or be used for judging described sending out
Send unit sends after described DMRS reconfigures signaling whether exceed default delay threshold；
The confirmation signaling reconfiguring signaling for described DMRS that described UE returns is received in described base station
Or send at described transmitting element 810 and after described DMRS reconfigures signaling, exceed described time delay door
Before limit, described transmitting element 810 continues with a described DMRS arrangement set C0 to subscriber equipment
UE sends ePDCCH, sends PDSCH with described 2nd DMRS arrangement set D0 to described UE；
The described confirmation signaling of described UE return is received or at described transmitting element 810 in described base station
Send after exceeding described delay threshold after described DMRS reconfigures signaling, described transmitting element 810
PDSCH is sent to described UE with described 3rd DMRS arrangement set D1.
According to embodiments of the present invention, receiving the described confirmation signaling of described UE return or prolonging described
Time thresholding time-out after, described transmitting element 810 with the 4th DMRS arrangement set C1 to described UE
Send ePDCCH.
Corresponding with base station 800, the subscriber equipment of the embodiment of the present invention is as shown in Figure 9.Subscriber equipment 900
Including:
Receive unit 910, receive base station for the first demodulated reference signal DMRS arrangement set C0 and send out
The ePDCCH sent, receives, with the 2nd DMRS arrangement set D0, the PDSCH that described base station sends；
Described reception unit 910 is additionally operable to receive the DMRS of described base station transmission and reconfigures signaling, its
Described in DMRS reconfigure signaling for instruction will be used for the DMRS arrangement set of PDSCH from institute
State the 2nd DMRS arrangement set D0 and be reconfigured for the 3rd DMRS arrangement set D1；
Described reception unit 910 is additionally operable to a described DMRS arrangement set C0 and the 4th DMRS
Arrangement set C1 receives ePDCCH；
First judging unit 920, is used for determining that described reception unit is the most for the first time with the described 4th
DMRS arrangement set C1 is properly received ePDCCH or with described 3rd DMRS arrangement set D1 just
Really receive PDSCH；
Second judging unit 930, is used for determining that described reception unit is with a described DMRS arrangement set
C0 is properly received ePDCCH or correct with described 4th DMRS arrangement set C1 with described UE
Receive ePDCCH,
Determine that described reception unit 910 is for the first time with the described 4th at described first judging unit 920
DMRS arrangement set C1 is properly received ePDCCH or with described 3rd DMRS arrangement set D1 just
Before really receiving PDSCH, if described second judging unit 920 is defined as described reception unit 910
Be properly received ePDCCH with a described DMRS arrangement set C0, the most described reception unit 910 with
Described 2nd DMRS arrangement set D0 receives PDSCH, if described second judging unit 930 is true
It is set to described reception unit 910 and is properly received ePDCCH with described 4th DMRS arrangement set C1,
The most described reception unit 910 receives PDSCH with described 3rd DMRS arrangement set D1.
According to embodiments of the present invention, it is defined as described reception unit 910 at described first judging unit 920
It is properly received ePDCCH or with the described 3rd for the first time with described 4th DMRS arrangement set C1
In the case of DMRS arrangement set D1 is properly received PDSCH,
Described reception unit 910 is used for receiving ePDCCH with described 4th DMRS arrangement set C1,
PDSCH is received with described 3rd DMRS arrangement set D1.
Those of ordinary skill in the art are it is to be appreciated that combine each of the embodiments described herein description
The unit of example and algorithm steps, it is possible to electronic hardware or computer software and the knot of electronic hardware
Incompatible realization.These functions perform with hardware or software mode actually, depend on the spy of technical scheme
Fixed application and design constraint.Professional and technical personnel can use not Tongfang to each specifically should being used for
Method realizes described function, but this realization is it is not considered that beyond the scope of this invention.
Those skilled in the art is it can be understood that arrive, and for convenience and simplicity of description, above-mentioned retouches
The specific works process of system, device and the unit stated, is referred to the correspondence in preceding method embodiment
Process, does not repeats them here.
In several embodiments provided herein, it should be understood that disclosed system, device and
Method, can realize by another way.Such as, device embodiment described above is only shown
Meaning property, such as, the division of described unit, be only a kind of logic function and divide, actual can when realizing
There to be other dividing mode, the most multiple unit or assembly can in conjunction with or be desirably integrated into another
System, or some features can ignore, or do not perform.Another point, shown or discussed each other
Coupling direct-coupling or communication connection can be the INDIRECT COUPLING by some interfaces, device or unit
Or communication connection, can be electrical, machinery or other form.
The described unit illustrated as separating component can be or may not be physically separate, makees
The parts shown for unit can be or may not be physical location, i.e. may be located at a place,
Or can also be distributed on multiple NE.Can select according to the actual needs part therein or
The whole unit of person realizes the purpose of the present embodiment scheme.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit
In, it is also possible to it is that unit is individually physically present, it is also possible to two or more unit are integrated in one
In individual unit.
If described function realizes using the form of SFU software functional unit and as independent production marketing or make
Used time, can be stored in a computer read/write memory medium.Based on such understanding, the present invention
The part that the most in other words prior art contributed of technical scheme or the portion of this technical scheme
Dividing and can embody with the form of software product, this computer software product is stored in a storage medium
In, including some instructions with so that computer equipment (can be personal computer, server,
Or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And it is front
The storage medium stated includes: USB flash disk, portable hard drive, read only memory (ROM, Read-Only Memory),
Random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can
To store the medium of program code.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited to
In this, any those familiar with the art, can be easily in the technical scope that the invention discloses
Expect change or replace, all should contain within protection scope of the present invention.Therefore, the protection of the present invention
Scope should described be as the criterion with scope of the claims.
Claims (16)
1. the collocation method of a reference signal, it is characterised in that described method includes:
Base station is with the first demodulated reference signal DMRS arrangement set (Y) or the 2nd DMRS sequence sets
Close (C0) and send enhancing Physical Downlink Control Channel ePDCCH to user equipment (UE), with the 3rd DMRS
Arrangement set (D0) sends Physical Downlink Shared Channel PDSCH to UE；
Described base station sends DMRS to described UE and reconfigures signaling, and wherein said DMRS reconfigures
Signaling is for being used for the DMRS arrangement set of PDSCH from described 3rd DMRS arrangement set
(D0) the 4th DMRS arrangement set (D1) it is reconfigured for；
Base station is after sending and reconfiguring signaling, and receive that described UE returns heavily joins for described DMRS
Confidence order confirmations signaling or before default delay threshold time-out, described base station continuation with first
DMRS arrangement set (Y) sends ePDCCH to user equipment (UE), with described 3rd DMRS sequence
Row set (D0) send PDSCH to described UE；
Receiving the described confirmation signaling of described UE return or after described delay threshold time-out, institute
State base station and send PDSCH with described 4th DMRS arrangement set (D1) to described UE.
2. the method for claim 1, it is characterised in that
After sending and reconfiguring signaling, receive described confirmation signaling that described UE returns or described
After delay threshold time-out, described base station is with described DMRS arrangement set (Y) or the 5th DMRS
Arrangement set (C1) sends ePDCCH to described UE.
3. the collocation method of a reference signal, it is characterised in that described method includes:
Base station sends ePDCCH with a DMRS arrangement set (C0) to UE, with the 2nd DMRS
Arrangement set (D0) sends PDSCH to UE；
Described base station sends DMRS to described UE and reconfigures signaling, and wherein said DMRS reconfigures
Signaling is for being used for the DMRS arrangement set of PDSCH from described 2nd DMRS arrangement set
(D0) the 3rd DMRS arrangement set (D1) it is reconfigured for；
Base station is after sending and reconfiguring signaling, and receive that described UE returns heavily joins for described DMRS
The confirmations signaling of confidence order or before default delay threshold time-out, the continuation of described base station is with described the
One DMRS arrangement set (C0) sends ePDCCH to UE, with described 2nd DMRS sequence sets
Close (D0) and send PDSCH to described UE；
Receiving the described confirmation signaling of described UE return or after described delay threshold time-out, institute
State base station and send PDSCH with described 3rd DMRS arrangement set (D1) to described UE.
4. method as claimed in claim 3, it is characterised in that
After sending and reconfiguring signaling, receive described confirmation signaling that described UE returns or described
After delay threshold time-out, described base station is sent out to described UE with the 4th DMRS arrangement set (C1)
Send ePDCCH.
5. the collocation method of a reference signal, it is characterised in that described method includes:
User equipment (UE) is with a DMRS arrangement set (Y) and the 2nd DMRS arrangement set (C0)
Receive the ePDCCH that base station sends, receive described base station with the 3rd DMRS arrangement set (D0) and send out
The Physical Downlink Shared Channel PDSCH sent；
Described UE receives the DMRS of described base station transmission and reconfigures signaling, wherein said DMRS weight
Configuration signal is for being used for the DMRS arrangement set of PDSCH from described 3rd DMRS sequence sets
Close (D0) and be reconfigured for the 4th DMRS arrangement set (D1)；
Described UE is with the 5th DMRS arrangement set (C1) and a described DMRS arrangement set (Y)
Receive ePDCCH；
Described UE determines whether to be properly received with described 5th DMRS arrangement set (C1) for the first time
EPDCCH or be properly received PDSCH with described 4th DMRS arrangement set (D1)；
It is properly received ePDCCH with described 5th DMRS arrangement set (C1) for the first time at described UE
Or before being properly received PDSCH with described 4th DMRS arrangement set (D1), if described UE
Being properly received ePDCCH with a described DMRS arrangement set (Y), the most described UE is with described
Three DMRS arrangement sets (D0) receive PDSCH, if described UE is with described 5th DMRS sequence
Row set (C1) are properly received ePDCCH, and the most described UE is with described 4th DMRS arrangement set
(D1) PDSCH is received.
6. method as claimed in claim 5, it is characterised in that described method farther includes:
It is properly received ePDCCH with described 5th DMRS arrangement set (C1) for the first time at described UE
Or after being properly received PDSCH with described 3rd DMRS arrangement set (D1),
Described UE is with described 5th DMRS arrangement set (C1) and a described DMRS sequence sets
Close (Y) and receive ePDCCH, receive PDSCH with described 4th DMRS arrangement set (D1).
7. the collocation method of a reference signal, it is characterised in that described method includes:
User equipment (UE) receives, with a DMRS arrangement set (C0), the ePDCCH that base station sends,
The PDSCH that described base station sends is received with the 2nd DMRS arrangement set (D0)；
Described UE receives the DMRS of described base station transmission and reconfigures signaling, wherein said DMRS weight
Configuration signal is for being used for the DMRS arrangement set of PDSCH from described 2nd DMRS sequence sets
Close (D0) and be reconfigured for the 3rd DMRS arrangement set (D1)；
Described UE is with a described DMRS arrangement set (C0) and the 4th DMRS arrangement set (C1)
Receive ePDCCH；
Described UE determines whether to be properly received with described 4th DMRS arrangement set (C1) for the first time
EPDCCH or be properly received PDSCH with described 3rd DMRS arrangement set (D1)；
It is properly received ePDCCH with described 4th DMRS arrangement set (C1) for the first time at described UE
Or before being properly received PDSCH with described 3rd DMRS arrangement set (D1), if described UE
Being properly received ePDCCH with a described DMRS arrangement set (C0), the most described UE is with described
2nd DMRS arrangement set (D0) receives PDSCH, if described UE is with described 4th DMRS
Arrangement set (C1) is properly received ePDCCH, and the most described UE is with described 3rd DMRS sequence sets
Close (D1) and receive PDSCH.
8. method as claimed in claim 7, it is characterised in that described method farther includes:
It is properly received ePDCCH with described 4th DMRS arrangement set (C1) for the first time at described UE
Or after being properly received PDSCH with described 3rd DMRS arrangement set (D1),
Described UE receives ePDCCH with described 4th DMRS arrangement set (C1), with described the
Three DMRS arrangement sets (D1) receive PDSCH.
9. a base station, it is characterised in that described base station includes:
Transmitting element, for the first demodulated reference signal DMRS arrangement set (Y) or the 2nd DMRS
Arrangement set (C0) sends to user equipment (UE) and strengthens Physical Downlink Control Channel ePDCCH, with the
Three DMRS arrangement sets (D0) send Physical Downlink Shared Channel PDSCH to UE；
Described transmitting element reconfigures signaling, wherein said DMRS for sending DMRS to described UE
Reconfigure signaling for indicating DMRS arrangement set from described 3rd DMRS arrangement set (D0)
It is reconfigured for the 4th DMRS arrangement set (D1)；
Judging unit, is used for judging that described transmitting element is after sending and reconfiguring signaling, if receive institute
State the confirmation signaling reconfiguring signaling for described DMRS that UE returns, or be used for judging described sending out
Send unit sends after described DMRS reconfigures signaling whether exceed default delay threshold；
The confirmation signaling reconfiguring signaling for described DMRS that described UE returns is received in described base station
Or described transmitting element send described DMRS reconfigure signaling after exceed described delay threshold it
Before, described transmitting element continues to send out to user equipment (UE) with a described DMRS arrangement set (Y)
Send ePDCCH, send PDSCH with described 3rd DMRS arrangement set (D0) to described UE；
Receive the described confirmation signaling of described UE return in described base station or send at described transmitting element
After described DMRS exceedes described delay threshold after reconfiguring signaling, described transmitting element is with described
4th DMRS arrangement set (D1) sends PDSCH to described UE.
10. base station as claimed in claim 9, it is characterised in that
Receive the described confirmation signaling of described UE return in described base station or send at described transmitting element
After described DMRS exceedes described delay threshold after reconfiguring signaling, described transmitting element is with described
Oneth DMRS arrangement set (Y) or the 5th DMRS arrangement set (C1) send to described UE
ePDCCH。
11. 1 kinds of base stations, it is characterised in that described base station includes:
Transmitting element, for setting to user with the first demodulated reference signal DMRS arrangement set (C0)
Standby UE sends ePDCCH, sends physical down altogether with the 2nd DMRS arrangement set (D0) to UE
Enjoy channel PDSCH；
Described transmitting element reconfigures signaling, wherein said DMRS for sending DMRS to described UE
Reconfigure signaling for indicating DMRS arrangement set from described 2nd DMRS arrangement set (D0)
It is reconfigured for the 3rd DMRS arrangement set (D1)；
Judging unit, is used for judging that described base station is after sending and reconfiguring signaling, if receive described
The confirmation signaling reconfiguring signaling for described DMRS that UE returns, or be used for judging described transmission
Unit sends after described DMRS reconfigures signaling whether exceed default delay threshold；
The confirmation signaling reconfiguring signaling for described DMRS that described UE returns is received in described base station
Or described transmitting element send described DMRS reconfigure signaling after exceed described delay threshold it
Before, described transmitting element continues with a described DMRS arrangement set (C0) to user equipment (UE)
Send ePDCCH, send PDSCH with described 2nd DMRS arrangement set (D0) to described UE；
Receive the described confirmation signaling of described UE return in described base station or send at described transmitting element
After described DMRS exceedes described delay threshold after reconfiguring signaling, described transmitting element is with described
3rd DMRS arrangement set (D1) sends PDSCH to described UE.
12. base stations as claimed in claim 11, it is characterised in that
Receiving the described confirmation signaling of described UE return or after described delay threshold time-out, institute
State transmitting element and send ePDCCH with the 4th DMRS arrangement set (C1) to described UE.
13. 1 kinds of subscriber equipmenies, it is characterised in that described subscriber equipment includes:
Receive unit, for the first demodulated reference signal DMRS arrangement set (Y) and the 2nd DMRS
Arrangement set (C0) receives the ePDCCH that base station sends, with the 3rd DMRS arrangement set (D0)
Receive the PDSCH that described base station sends；
Described reception unit is additionally operable to receive the DMRS of described base station transmission and reconfigures signaling, Qi Zhongsuo
State DMRS to reconfigure signaling and will be used for the DMRS arrangement set of PDSCH from described for instruction
Three DMRS arrangement sets (D0) are reconfigured for the 4th DMRS arrangement set (D1)；
Described reception unit is additionally operable to the 5th DMRS arrangement set (C1) and a described DMRS
Arrangement set (Y) receives ePDCCH；
First judging unit, is used for determining that described reception unit is the most for the first time with described 5th DMRS
Arrangement set (C1) is properly received ePDCCH or with described 4th DMRS arrangement set (D1) just
Really receive PDSCH；
Second judging unit, is used for determining that described reception unit is with described 5th DMRS arrangement set (C1)
It is properly received ePDCCH or is properly received ePDCCH with a described DMRS arrangement set (Y),
Determine that described reception unit is for the first time with described 5th DMRS sequence at described first judging unit
Set (C1) is properly received ePDCCH or correctly connects with described 4th DMRS arrangement set (D1)
Before receiving PDSCH, if described second judging unit is defined as described reception unit with described first
DMRS arrangement set (Y) is properly received ePDCCH, and the most described reception unit is with described 3rd DMRS
Arrangement set (D0) receives PDSCH, if described second judging unit is defined as described reception unit
Be properly received ePDCCH with described 5th DMRS arrangement set (C1), the most described reception unit with
Described 4th DMRS arrangement set (D1) receives PDSCH.
14. subscriber equipmenies as claimed in claim 13, it is characterised in that
It is defined as described reception unit for the first time with described 5th DMRS sequence at described first judging unit
Row set (C1) are properly received ePDCCH or correct with described 3rd DMRS arrangement set (D1)
In the case of receiving PDSCH,
Described reception unit is for described 5th DMRS arrangement set (C1) and a described DMRS
Arrangement set (Y) receives ePDCCH, receives PDSCH with described 4th DMRS arrangement set (D1).
15. 1 kinds of subscriber equipmenies, it is characterised in that described subscriber equipment includes:
Receive unit, receive base station for the first demodulated reference signal DMRS arrangement set (C0) and send out
The ePDCCH sent, receives, with the 2nd DMRS arrangement set (D0), the PDSCH that described base station sends；
Described reception unit is additionally operable to receive the DMRS of described base station transmission and reconfigures signaling, Qi Zhongsuo
State DMRS to reconfigure signaling and will be used for the DMRS arrangement set of PDSCH from described for instruction
Two DMRS arrangement sets (D0) are reconfigured for the 3rd DMRS arrangement set (D1)；
Described reception unit is additionally operable to described DMRS arrangement set (C0) and the 4th DMRS
Arrangement set (C1) receives ePDCCH；
First judging unit, is used for determining that described reception unit is the most for the first time with described 4th DMRS
Arrangement set (C1) is properly received ePDCCH or with described 3rd DMRS arrangement set (D1) just
Really receive PDSCH；
Second judging unit, is used for determining that described reception unit is with a described DMRS arrangement set (C0)
It is properly received ePDCCH or is properly received ePDCCH with described 4th DMRS arrangement set (C1),
Determine that described reception unit is for the first time with described 4th DMRS sequence at described first judging unit
Set (C1) is properly received ePDCCH or correctly connects with described 3rd DMRS arrangement set (D1)
Before receiving PDSCH, if described second judging unit is defined as described reception unit with described first
DMRS arrangement set (C0) is properly received ePDCCH, and the most described reception unit is with described 2nd DMRS
Arrangement set (D0) receives PDSCH, if described second judging unit is defined as described reception unit
Be properly received ePDCCH with described 4th DMRS arrangement set (C1), the most described reception unit with
Described 3rd DMRS arrangement set (D1) receives PDSCH.
16. subscriber equipmenies as claimed in claim 15, it is characterised in that
It is defined as described reception unit for the first time with described 4th DMRS sequence at described first judging unit
Row set (C1) are properly received ePDCCH or correct with described 3rd DMRS arrangement set (D1)
In the case of receiving PDSCH,
Described reception unit is used for receiving ePDCCH with described 4th DMRS arrangement set (C1),
PDSCH is received with described 3rd DMRS arrangement set (D1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210145271.7A CN103391155B (en) | 2012-05-11 | 2012-05-11 | The collocation method of reference signal, base station and subscriber equipment |
| PCT/CN2013/072162 WO2013166879A1 (en) | 2012-05-11 | 2013-03-05 | Method, base station and user equipment for configuring reference signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210145271.7A CN103391155B (en) | 2012-05-11 | 2012-05-11 | The collocation method of reference signal, base station and subscriber equipment |
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| CN103391155A CN103391155A (en) | 2013-11-13 |
| CN103391155B true CN103391155B (en) | 2016-12-14 |
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| CN201210145271.7A Expired - Fee Related CN103391155B (en) | 2012-05-11 | 2012-05-11 | The collocation method of reference signal, base station and subscriber equipment |
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| CN (1) | CN103391155B (en) |
| WO (1) | WO2013166879A1 (en) |
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| US10171216B2 (en) * | 2016-04-08 | 2019-01-01 | Qualcomm Incorporated | Downlink control for demodulation reference signal transmissions |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102111893A (en) * | 2009-12-23 | 2011-06-29 | 富士通株式会社 | Method and device for transmitting downlink scheduling singling |
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| US6870932B2 (en) * | 2001-05-07 | 2005-03-22 | Asustek Computer Inc. | Frame number identification and ciphering activation time synchronization for a wireless communications protocol |
| CN102045728B (en) * | 2009-10-12 | 2014-07-09 | 华为技术有限公司 | Method for allocating reference signals and base station |
| CN102202027B (en) * | 2010-03-26 | 2015-08-12 | 中兴通讯股份有限公司 | A kind of production method of pilot frequency sequence and device |
| CN102859900B (en) * | 2010-04-22 | 2016-02-03 | Lg电子株式会社 | For the method and apparatus of the channel estimating of the wireless link between base station and relay station |
| US8792438B2 (en) * | 2010-10-07 | 2014-07-29 | Futurewei Technologies, Inc. | System and method for search space reconfiguration in a communications system |
| CN102448105B (en) * | 2010-10-09 | 2015-11-25 | 电信科学技术研究院 | The transmission method of downlink data and equipment |
| CN102036297B (en) * | 2010-12-24 | 2013-08-14 | 大唐移动通信设备有限公司 | Method and equipment for transmitting PDCCH, method and equipment for detecting PDCCH, and system |
| CN102340382A (en) * | 2011-10-28 | 2012-02-01 | 电信科学技术研究院 | Method and device for configuring DMRS (demodulation reference signal) scrambling code sequence |
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2012
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102111893A (en) * | 2009-12-23 | 2011-06-29 | 富士通株式会社 | Method and device for transmitting downlink scheduling singling |
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| Title |
|---|
| Huawei,HiSilicon.DMRS sequences for ePDCCH.《3GPP》.2012, * |
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| Publication number | Publication date |
|---|---|
| CN103391155A (en) | 2013-11-13 |
| WO2013166879A1 (en) | 2013-11-14 |
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