CN103391155A - Configuration method for reference signals, base station and user equipment - Google Patents
Configuration method for reference signals, base station and user equipment Download PDFInfo
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- CN103391155A CN103391155A CN2012101452717A CN201210145271A CN103391155A CN 103391155 A CN103391155 A CN 103391155A CN 2012101452717 A CN2012101452717 A CN 2012101452717A CN 201210145271 A CN201210145271 A CN 201210145271A CN 103391155 A CN103391155 A CN 103391155A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention relates to a configuration method for DMRS, a base station and user equipment. The configuration method for the reference signals comprises the following steps that the base station sends ePDCCH to the user equipment (UE) through a DMRS sequence set Y or C0 and sends PDSCH to the UE through D0; the base station sends DMRS reconfiguration signals to the UE, and the DMRS reconfiguration signals are used for reconfiguring the DMRS sequence set of the PDSCH from D0 to D1; after sending out the reconfiguration signals or when receiving confirmation signals fed back by the UE or before a preset delay threshold is overtime, the base station continues sending ePDCCH to the UE through the DMRS sequence set Y and sends the PDSCH to the UE through the DMRS sequence set D0; when receiving the configuration signals fed back by the UE or after the delay threshold is overtime, the base station sends the PDSCH to the UE through the DMRS sequence set D1. By means of the configuration method for DMRS, the base station and the user equipment, the problem of DMRS blurring in the reconfiguration process of the DMRS is resolved, and the efficiency of a system is improved.
Description
Technical field
The embodiment of the present invention relates to wireless communication field, more particularly, relates to collocation method, base station and the subscriber equipment of reference signal.
Background technology
At present wireless communication system, such as Long Term Evolution (Long Term Evolution, abbreviation LTE) in system, enhancing Physical Downlink Control Channel (the Enhanced Physical Downlink Control Channel that base station sends to subscriber equipment, be called for short ePDCCH) and Physical Downlink Shared Channel (Physical Downlink Shared Channel, abbreviation PDSCH) demodulated reference signal that adopts (Demodulation Reference Signal is called for short DMRS) adopts identical formula to produce.EPDCCH marks off the part resource to be used for the transmission Downlink Control Information in traditional PDSCH channel, with the resource of expanded downstream control information on traditional PD CCH basis.In communication process, receiving terminal can be received the DMRS arrangement set of transmitting terminal configuration, contain one or more DMRS sequence in this set, in each communication process, the service channel identifier sequence number (Service Channel Identifier n be called for short n_SCID) of UE by reading ePDCCH determines it is which DMRS sequence in the DMRS arrangement set works on earth.For example, contain two DRMS sequences in the DMRS arrangement set, so when n_SCID=0, with first DMRS sequence in the DMRS set, during n_SCID=1 with second.The DMRS of PDSCH is used for carrying out the PDSCH demodulation, and UE carries out channel estimating according to DMRS, then with the channel estimation value that obtains, carries out the PDSCH demodulation.LTER11(version 11) there is the fuzzy problem of DMRS arrangement set of PDSCH in system, namely during the DMRS arrangement set is reshuffled, subscriber equipment (User Equipment, be called for short UE) during demodulation PDSCH, UE uses the DMRS arrangement set after the DMRS arrangement set before reshuffling is still reshuffled.
Summary of the invention
The embodiment of the present invention has proposed a kind of collocation method of reference signal, the DMRS arrangement set that is used for PDSCH by treatment by stages, solve the DMRS fuzzy problem of UE demodulation PDSCH during DMRS reshuffles, guaranteed the proper communication between base station (eNodeB) and UE.
On the one hand, the embodiment of the present invention has proposed a kind of collocation method of reference signal, and described method comprises:
Base station sends and strengthens Physical Downlink Control Channel ePDCCH to user equipment (UE) with the first demodulated reference signal DMRS arrangement set (Y) or the 2nd DMRS arrangement set (C0), with the 3rd DMRS arrangement set (D0), to UE, sends Physical Downlink Shared Channel PDSCH;
Described base station sends DMRS to described UE and reshuffles signaling, and wherein said DMRS reshuffles signaling and is used for and will be reconfigured for the 4th DMRS arrangement set (D1) from described the 3rd DMRS arrangement set (D0) for the DMRS arrangement set of PDSCH;
Base station is after sending and reshuffling signaling, that receives that described UE returns reshuffles the confirmation signaling of signaling or before default time delay thresholding is overtime for described DMRS, described base station continues to send ePDCCH with a DMRS arrangement set (Y) to user equipment (UE), with described the 3rd DMRS arrangement set (D0), to described UE, sends PDSCH;
Receiving described confirmation signaling that described UE returns or after described time delay thresholding was overtime, described base station sent PDSCH with described the 4th DMRS arrangement set (D1) to described UE.
On the other hand, the embodiment of the present invention has proposed a kind of collocation method of reference signal, and described method comprises:
Base station sends ePDCCH with a DMRS arrangement set (C0) to UE, with the 2nd DMRS arrangement set (D0), to UE, sends PDSCH;
Described base station sends DMRS to described UE and reshuffles signaling, and wherein said DMRS reshuffles signaling and is used for and will be reconfigured for the 3rd DMRS arrangement set (D1) from described the 2nd DMRS arrangement set (D0) for the DMRS arrangement set of PDSCH;
Base station is after sending and reshuffling signaling, that receives that described UE returns reshuffles the confirmation signaling of signaling or before default time delay thresholding is overtime for described DMRS, described base station continues to send ePDCCH with a described DMRS arrangement set (C0) to UE, with described the 2nd DMRS arrangement set (D0), to described UE, sends PDSCH;
Receiving described confirmation signaling that described UE returns or after described time delay thresholding was overtime, described base station sent PDSCH with described the 3rd DMRS arrangement set (D1) to described UE.
On the other hand, the embodiment of the present invention has proposed a kind of collocation method of reference signal, and described method comprises:
User equipment (UE) receives with a DMRS arrangement set (Y) and the 2nd DMRS arrangement set (C0) ePDCCH that base station sends, and with the 3rd DMRS arrangement set (D0), receives the Physical Downlink Shared Channel PDSCH that described base station sends;
The DMRS that described UE receives the transmission of described base station reshuffles signaling, and wherein said DMRS reshuffles signaling and is used for and will be reconfigured for the 4th DMRS arrangement set (D1) from described the 3rd DMRS arrangement set (D0) for the DMRS arrangement set of PDSCH;
Described UE receives ePDCCH with described the 5th DMRS arrangement set (C1) and a described DMRS arrangement set (Y);
Described UE determines whether correctly to receive ePDCCH or with described the 4th DMRS arrangement set (D1), correctly receive PDSCH with described the 5th DMRS arrangement set (C1) for the first time;
Described UE correctly receives for the first time ePDCCH or with described the 4th DMRS arrangement set (D1), correctly receives PDSCH with described the 5th DMRS arrangement set (C1) before, if described UE correctly receives ePDCCH with a described DMRS arrangement set (Y), described UE receives PDSCH with described the 3rd DMRS arrangement set (D0), if described UE correctly receives ePDCCH with described the 5th DMRS arrangement set (C1), described UE receives PDSCH with described the 4th DMRS arrangement set (D1).
On the other hand, the embodiment of the present invention has proposed a kind of collocation method of reference signal, and described method comprises:
User equipment (UE) receives with a DMRS arrangement set (C0) ePDCCH that base station sends, and with the 2nd DMRS arrangement set (D0), receives the PDSCH that described base station sends;
The DMRS that described UE receives the transmission of described base station reshuffles signaling, and wherein said DMRS reshuffles signaling and is used for and will be reconfigured for the 3rd DMRS arrangement set (D1) from described the 2nd DMRS arrangement set (D0) for the DMRS arrangement set of PDSCH;
Described UE receives ePDCCH with a described DMRS arrangement set (C0) and the 4th DMRS arrangement set (C1);
Described UE determines whether correctly to receive ePDCCH or with described the 3rd DMRS arrangement set (D1), correctly receive PDSCH with described the 4th DMRS arrangement set (C1) for the first time;
Described UE correctly receives for the first time ePDCCH or with described the 3rd DMRS arrangement set (D1), correctly receives PDSCH with described the 4th DMRS arrangement set (C1) before, if described UE correctly receives ePDCCH with a described DMRS arrangement set (C0), described UE receives PDSCH with described the 2nd DMRS arrangement set (D0), if described UE correctly receives ePDCCH with described the 4th DMRS arrangement set (C1), described UE receives PDSCH with described the 3rd DMRS arrangement set (D1).
On the other hand, the embodiment of the present invention has proposed a kind of base station, and described base station comprises:
Transmitting element, be used for sending and strengthening Physical Downlink Control Channel ePDCCH to user equipment (UE) with the first demodulated reference signal DMRS arrangement set (Y) or the 2nd DMRS arrangement set (C0), with the 3rd DMRS arrangement set (D0), to UE, send Physical Downlink Shared Channel PDSCH;
Described transmitting element is used for sending DMRS to described UE and reshuffles signaling, and wherein said DMRS reshuffles signaling and is used to indicate the DMRS arrangement set is reconfigured for described the 4th DMRS arrangement set (D1) from described the 3rd DMRS arrangement set (D0);
Judging unit, be used for judging that described base station is after sending and reshuffling signaling, that whether receives that described UE returns reshuffles the confirmation signaling of signaling for described DMRS, is used for perhaps judging that described transmitting element sends described DMRS and whether surpasses default time delay thresholding after reshuffling signaling;
Before described base station is received the confirmation signaling of reshuffling signaling for described DMRS that described UE returns or surpass described time delay thresholding after the described DMRS of described transmitting element transmission is reshuffled signaling, described transmitting element continues to send ePDCCH with a described DMRS arrangement set (Y) to user equipment (UE), with described the 3rd DMRS arrangement set (D0), to described UE, sends PDSCH
After described base station was received the described confirmation signaling that described UE returns or surpass described time delay thresholding after the described DMRS of described transmitting element transmission is reshuffled signaling, described transmitting element sent PDSCH with described the 4th DMRS arrangement set (D1) to described UE.
On the other hand, the embodiment of the present invention has proposed a kind of base station, and described base station comprises:
Transmitting element, be used for sending ePDCCH with the first demodulated reference signal DMRS arrangement set (C0) to user equipment (UE), with the 2nd DMRS arrangement set (D0), to UE, sends Physical Downlink Shared Channel PDSCH;
Described transmitting element is used for sending DMRS to described UE and reshuffles signaling, and wherein said DMRS reshuffles signaling and is used to indicate the DMRS arrangement set is reconfigured for described the 3rd DMRS arrangement set (D1) from described the 2nd DMRS arrangement set (D0);
Judging unit, be used for judging that described base station is after sending and reshuffling signaling, that whether receives that described UE returns reshuffles the confirmation signaling of signaling for described DMRS, is used for perhaps judging that described transmitting element sends described DMRS and whether surpasses default time delay thresholding after reshuffling signaling;
Before described base station is received the confirmation signaling of reshuffling signaling for described DMRS that described UE returns or surpass described time delay thresholding after the described DMRS of described transmitting element transmission is reshuffled signaling, described transmitting element continues to send ePDCCH with a described DMRS arrangement set (C0) to user equipment (UE), with described the 2nd DMRS arrangement set (D0), to described UE, sends PDSCH;
After described base station was received the described confirmation signaling that described UE returns or surpass described time delay thresholding after the described DMRS of described transmitting element transmission is reshuffled signaling, described transmitting element sent PDSCH with described the 3rd DMRS arrangement set (D1) to described UE.
On the other hand, the embodiment of the present invention has proposed a kind of subscriber equipment, and described subscriber equipment comprises:
Receiving element, be used for receiving with the first demodulated reference signal DMRS arrangement set (Y) and the 2nd DMRS arrangement set (C0) ePDCCH that base station sends, and with the 3rd DMRS arrangement set (D0), receives the PDSC H that described base station sends;
Described receiving element also is used for receiving the DMRS that described base station sends and reshuffles signaling, and wherein said DMRS reshuffles signaling and is used to indicate the DMRS arrangement set that is used for PDSCH is reconfigured for the 4th DMRS arrangement set (D1) from described the 3rd DMRS arrangement set (D0);
Described receiving element also is used for receiving ePDCCH with described the 5th DMRS arrangement set (C1) and a described DMRS arrangement set (Y);
The first judging unit, be used for determining whether described receiving element correctly receives ePDCCH or with described the 4th DMRS arrangement set (D1), correctly receive PDSCH with described the 5th DMRS arrangement set (C1) for the first time;
The second judging unit, be used for determining that described receiving element correctly receives ePDCCH or with described UE, with a described DMRS arrangement set (Y), correctly receives ePDCCH with described the 5th DMRS arrangement set (C1),
before described the first judging unit determines that described receiving element correctly receives for the first time ePDCCH or with described the 4th DMRS arrangement set (D1), correctly receives PDSCH with described the 5th DMRS arrangement set (C1), if described the second judging unit is defined as described receiving element and correctly receives ePDCCH with a described DMRS arrangement set (Y), described receiving element receives PDSCH with described the 3rd DMRS arrangement set (D), if described the second judging unit is defined as described receiving element and correctly receives ePDCCH with described the 5th DMRS arrangement set (C1), described receiving element receives PDSCH with described the 4th DMRS arrangement set (D1).
On the other hand, the embodiment of the present invention has proposed a kind of subscriber equipment, and described subscriber equipment comprises:
Receiving element, be used for the first demodulated reference signal DMRS arrangement set (C0) and receive the ePDCCH that base station sends, and with the 2nd DMRS arrangement set (D0), receives the PDSCH that described base station sends;
Described receiving element also is used for receiving the DMRS that described base station sends and reshuffles signaling, and wherein said DMRS reshuffles signaling and is used to indicate the DMRS arrangement set that is used for PDSCH is reconfigured for the 3rd DMRS arrangement set (D1) from described the 2nd DMRS arrangement set (D0);
Described receiving element also is used for receiving ePDCCH with a described DMRS arrangement set (C0) and the 4th DMRS arrangement set (C1);
The first judging unit, be used for determining whether described receiving element correctly receives ePDCCH or with described the 3rd DMRS arrangement set (D1), correctly receive PDSCH with described the 4th DMRS arrangement set (C1) for the first time;
The second judging unit, be used for determining that described receiving element correctly receives ePDCCH or with described UE, with described the 4th DMRS arrangement set (C1), correctly receives ePDCCH with a described DMRS arrangement set (C0),
before described the first judging unit determines that described receiving element correctly receives for the first time ePDCCH or with described the 3rd DMRS arrangement set (D1), correctly receives PDSCH with described the 4th DMRS arrangement set (C1), if described the second judging unit is defined as described receiving element and correctly receives ePDCCH with a described DMRS arrangement set (C0), described receiving element receives PDSCH with described the 2nd DMRS arrangement set (D0), if described the second judging unit is defined as described receiving element and correctly receives ePDCCH with described the 4th DMRS arrangement set (C1), described receiving element receives PDSCH with described the 3rd DMRS arrangement set (D1).
According to the embodiment of the present invention, the DMRS that adopts by segmenting DMRS reconfiguration course and each stage demodulation ePDCCH of corresponding configuration and PDSCH, during can eliminating DMRS and reshuffling, base station sends and UE receives the DMRS fuzzy problem that PDSCH adopts, improved the efficiency of system, reduce resource overhead, guaranteed proper communication.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the DMRS reconfiguration course segmentation stage schematic diagram according to the embodiment of the present invention;
Fig. 2 is the schematic flow diagram according to the method for the embodiment of the present invention;
Fig. 3 is the schematic flow diagram according to the method for the embodiment of the present invention;
Fig. 4 is the schematic flow diagram according to the method for the embodiment of the present invention;
Fig. 5 is the schematic flow diagram according to the method for the embodiment of the present invention;
Fig. 6 is the schematic configuration diagram according to the base station of the embodiment of the present invention;
Fig. 7 is the schematic configuration diagram according to the subscriber equipment of the embodiment of the present invention;
Fig. 8 is the schematic configuration diagram according to the base station of the embodiment of the present invention;
Fig. 9 is the schematic configuration diagram according to the subscriber equipment of the embodiment of the present invention.
Embodiment
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 clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment that obtains, belong to the scope of protection of the invention.
Fig. 1 is the schematic diagram stage by stage according to the DMRS reconfiguration course of the embodiment of the present invention.As can be seen from Figure 1, the DMRS reconfiguration course can be subdivided into four-stage, and respectively from base station side and UE side, the division in each stage is slightly different.
In base station side: the first stage, base station sends before DMRS reshuffles signaling, and base station adopts C0 or Y-direction UE to send ePDCCH, adopts D0 to send PDSCH to UE; Second stage, base station sends DMRS to UE and reshuffles signaling and successfully receive this to UE and reshuffle signaling, and the signaling of reshuffling described here is used to indicate UE and will be reconfigured for D1 from D0 for the DMRS arrangement set of PDSCH; Phase III, successfully receive this from UE and reshuffle signaling and receive that to base station UE completes this confirmation of reshuffling or base station and sends described while reshuffling after signaling through default time delay thresholding M; Fourth stage, base station receive that UE completes this confirmation of reshuffling or the described signaling of reshuffling is sent afterwards through after default time delay thresholding M in base station.
From the UE side, the first stage, before base station transmission DMRS reshuffled signaling, base station adopted C0 or Y-direction UE to send ePDCCH, adopts D0 to send PDSCH to UE; Second stage, base station sends DMRS to UE and reshuffles signaling and successfully receive this to UE and reshuffle signaling, and the signaling of reshuffling described here is used to indicate UE and will be reconfigured for D1 from D0 for the DMRS arrangement set of PDSCH; Phase III, successfully receive this from UE and reshuffle signaling and successfully with C1, receive ePDCCH or with D1, receive PDSCH for the first time to UE; Fourth stage, UE successfully receives this and reshuffles signaling after UE successfully receives ePDCCH or with D1, receives PDSCH with C1 for the first time.
The DMRS reconfiguration course is subdivided into four-stage, can makes a concrete analysis of the DMRS arrangement set that stages base station side and UE side adopt, to be used for the DMRS arrangement set of PDSCH in clear and definite DMRS reconfiguration course.Explain in detail the technical scheme of the embodiment of the present invention below in conjunction with the concrete application scenarios of the embodiment of the present invention.
A kind of applied field is that ePDCCH can adopt the fixing incompatible demodulation of DMRS sequence sets, and namely in this case, base station adopts this fixing DMRS arrangement set to send ePDCCH to UE, and UE also adopts this fixing incompatible reception of DMRS sequence sets ePDCCH.DMRS reconfiguration course with reference to the ePDCCH shown in Fig. 1 and PDSCH.Easy in order to describe, before reshuffling, be used for the DMRS arrangement set of sending and receiving ePDCCH and PDSCH respectively referred to as C0 and D0, and after reshuffling, the DMRS arrangement set that is used for sending and receiving ePDCCH and PDSCH is called for short respectively C1 and D1, and Y represents the above-mentioned fixing DMRS arrangement set that is used for sending and receiving ePDCCH.According to the configuration of existing LTE-A system, there is corresponding relation in the DMRS arrangement set that is used for sending and receiving ePDCCH and PDSCH, and namely before reshuffling, C0 is corresponding with D0, and after reshuffling, C1 is corresponding with D1.In the scheme of the embodiment of the present invention, the main fuzzy problem of DMRS arrangement set during reshuffling that is used for PDSCH of paying close attention to.
According to the stage division of Fig. 1, the embodiment of the present invention has proposed a kind of collocation method of reference signal, and the exemplary flow of the method as shown in Figure 2.
In Fig. 2, method 200 comprises:
210: base station sends ePDCCH with the first demodulated reference signal DMRS arrangement set Y or the 2nd DMRS arrangement set C0 to user equipment (UE), with the 3rd DMRS arrangement set D0, to UE, sends PDSCH;
220: described base station sends DMRS to described UE and reshuffles signaling, and wherein said DMRS reshuffles signaling and is used for and will be reconfigured for the 4th DMRS arrangement set D1 from described the 3rd DMRS arrangement set D0 for the DMRS arrangement set of PDSCH;
230: base station is after sending and reshuffling signaling, that receives that described UE returns reshuffles the confirmation signaling of signaling or before default time delay thresholding is overtime for described DMRS, described base station continues to send ePDCCH with a DMRS arrangement set Y-direction user equipment (UE), with described the 3rd DMRS arrangement set D0, to described UE, sends PDSCH;
240: receiving described confirmation signaling that described UE returns or after described time delay thresholding was overtime, described base station sent PDSCH with described the 4th DMRS arrangement set D1 to described UE.
Corresponding with the method 200 of base station side, from the UE side, the embodiment of the present invention has proposed a kind of collocation method 300 of reference signal, and the exemplary flow of the method as shown in Figure 3.
As shown in Figure 3, method 300 comprises:
310:UE receives with a DMRS arrangement set Y and the 2nd DMRS arrangement set C0 the ePDCCH that base station sends, and with the 3rd DMRS arrangement set D0, receives the PDSCH that described base station sends;
The DMRS that 320:UE receives the transmission of described base station reshuffles signaling, and wherein said DMRS reshuffles signaling and is used for and will be reconfigured for the 4th DMRS arrangement set D1 from described the 3rd DMRS arrangement set D0 for the DMRS arrangement set of PDSCH;
330:UE receives ePDCCH with the 5th DMRS arrangement set C1 and a described DMRS arrangement set Y;
340:UE determines whether correctly to receive ePDCCH or with described the 4th DMRS arrangement set D1, correctly receive PDSCH with described the 5th DMRS arrangement set C1 for the first time;
350: described UE correctly receives for the first time ePDCCH or with described the 4th DMRS arrangement set D1, correctly receives PDSCH with described the 5th DMRS arrangement set C1 before, if described UE correctly receives ePDCCH with a described DMRS arrangement set Y, described UE receives PDSCH with described the 3rd DMRS arrangement set D0, if described UE correctly receives ePDCCH with described the 5th DMRS arrangement set C1, described UE receives PDSCH with described the 4th DMRS arrangement set D1.
Divide and scheme below in conjunction with the stage shown in Figure 1, illustrate the method 200 and 300 of the embodiment of the present invention.
In the first stage of base station side, base station adopts C0 and Y-direction UE to send ePDCCH, adopts D0 to send PDSCH to UE.In the first stage of UE side, UE correspondingly adopts C0 and Y to receive ePDCCH, and adopts D0 to receive PDSCH.
When the DMRS reconfiguration course started, base station sent DMRS to UE and reshuffles signaling, and the purpose of this signaling is that the DMRS that is used for PDSCH is reconfigured for D1 from D0.This indicates that base station side and UE side enter second stage simultaneously.In the second stage of base station side, base station changes into adopts Y-direction UE to send ePDCCH, but still adopts D0 to send PDSCH to UE.As previously mentioned, under scene shown in Figure 1, base station and UE can adopt fixing DMRS arrangement set Y to carry out demodulation to ePDCCH.From base station side, base station is in second stage and phase III, namely from base station to UE, sending DMRS reshuffles signaling and receives to base station that UE completes the confirmation of reshuffling or to base station, sends and reshuffle after signaling through the time delay preset and till making the time delay thresholding overtime, base station all keeps adopting Y-direction UE to send ePDCCH, adopts D0 to send PDSCH to UE.Reason is this section in the period, and base station can not determine that UE has completed reconfiguration course, and namely base station does not know whether UE can receive PDSCH with D1.fourth stage in base station side, namely in the situation that system is UE need to reshuffle signaling to DMRS and confirm, base station receives that UE rises while being successfully completed the confirmation that this reshuffles, perhaps in the situation that system is designed to UE need not that DMRS is reshuffled signaling and confirm, send from base station to UE after this DMRS reshuffles signaling and reach time delay thresholding M through default time delay, 150 Transmission Time Interval (Transmission Time Interval for example, abbreviation TTI) in time, rise, base station is thought that the DMRS for PDSCH reshuffles and is successfully completed, can adopt D1 to send PDSCH to UE.Therefore, from the base station side fourth stage, base station adopts C1 or Y-direction UE to send ePDCCH, and adopts D1 to send PDSCH to UE.
In first stage and the second stage of UE side, UE adopts C0 and Y to receive ePDCCH, and adopts D0 to receive PDSCH, until UE successfully receives the described DMRS of base station transmission, reshuffles signaling.Successfully receive from UE described DMRS that base station sends and reshuffle signaling and correctly receive ePDCCH or with D1, correctly receive PDSCH with C1 for the first time to UE, namely in the phase III of UE side, UE adopts C1 and Y to receive ePDCCH.Here be noted that UE can determine C1 according to D1 according to default algorithm, perhaps determines by other means or from base station, obtains C1.UE when using C1 and Y to receive ePDCCH, needs to determine whether UE correctly receives ePDCCH or with D1, correctly receive PDSCH with C1 for the first time.If UE uses Y successfully to receive ePDCCH, UE uses D0 to receive PDSCH., if UE uses C1 correctly to receive ePDCCH, with D1, receive PDSCH.
From Fig. 1, the fourth stage of base station side always is later than the fourth stage of UE side, because after only having UE to confirm to have reshuffled or surpassing described default time delay thresholding, base station just starts to adopt C1 to send ePDCCH, after this UE just may adopt C1 to receive ePDCCH.
Adopt for the first time C1 correctly to receive ePDCCH or adopt D1 successfully to receive PDSCH and rise at UE, namely in the fourth stage of UE side, D0 completes to reshuffling of D1, and UE adopts C1 or Y to receive ePDCCH, adopts D1 to receive PDSCH.
By segmentation DMRS reconfiguration course, the DMRS arrangement set Y by fixing, guaranteed that each stage UE all can adopt 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 adopts the fixing incompatible demodulation ePDCCH of DMRS sequence sets.In this case, in conjunction with the stage of Fig. 1, divide and scheme, in the first stage of base station side, base station can only adopt C0 to send ePDCCH, and in the first stage of UE side, UE can only receive ePDCCH with C0.
According to this application scenarios, the embodiment of the present invention has proposed the collocation method of another kind of reference signal, as shown in Figure 4.Method 400 comprises:
410: base station sends ePDCCH with a DMRS arrangement set C0 to UE, with the 2nd DMRS arrangement set D0, to UE, sends PDSCH;
420: described base station sends DMRS to described UE and reshuffles signaling, and wherein said DMRS reshuffles signaling and is used for and will be reconfigured for the 3rd DMRS arrangement set D1 from described the 2nd DMRS arrangement set D0 for the DMRS arrangement set of PDSCH;
430: base station is after sending and reshuffling signaling, that receives that described UE returns reshuffles the confirmation signaling of signaling or before default time delay thresholding is overtime for described DMRS, described base station continues to send ePDCCH with a described DMRS arrangement set C0 to UE, with described the 2nd DMRS arrangement set D0, to described UE, sends PDSCH;
430: receiving described confirmation signaling that described UE returns or after described time delay thresholding was overtime, described base station sent PDSCH with described the 3rd DMRS arrangement set D1 to described UE.
Corresponding with the method 400 of base station side, from the UE side, the embodiment of the present invention has proposed a kind of collocation method 500 of reference signal, and the exemplary flow of the method as shown in Figure 5.
As shown in Figure 5, method 500 comprises:
510:UE receives with a DMRS arrangement set C0 ePDCCH that base station sends, and with the 2nd DMRS arrangement set D0, receives the PDSCH that described base station sends;
520: the DMRS that described UE receives the transmission of described base station reshuffles signaling, and wherein said DMRS reshuffles signaling and is used for and will be reconfigured for the 3rd DMRS arrangement set D1 from described the 2nd DMRS arrangement set D0 for the DMRS arrangement set of PDSCH;
530: described UE receives ePDCCH with a described DMRS arrangement set C0 and described the 4th DMRS arrangement set C1;
540: described UE determines whether receive ePDCCH or with described the 3rd DMRS arrangement set D1, correctly receive PDSCH with described the 4th DMRS arrangement set C1 for the first time;
550: before described UE receives ePDCCH or with described the 3rd DMRS arrangement set D1, correctly receives PDSCH with described the 4th DMRS arrangement set C1 for the first time, if described UE correctly receives ePDCCH with a described DMRS arrangement set C0, described UE receives PDSCH with described the 2nd DMRS arrangement set D0, if described UE correctly receives ePDCCH with described the 4th DMRS arrangement set C1, described UE receives PDSCH with described the 3rd DMRS arrangement set D1.
Divide and scheme below in conjunction with the stage shown in Figure 1, illustrate the method 400 and 500 of the embodiment of the present invention.
In the first stage of base station side, base station adopts C0 to send ePDCCH to UE, adopts D0 to send PDSCH to UE.In the first stage of UE side, UE correspondingly adopts C0 to receive ePDCCH, adopts D0 to receive PDSCH.
When the DMRS reconfiguration course started, base station sent DMRS to UE and reshuffles signaling, and the purpose of this signaling is that the DMRS that is used for PDSCH is reconfigured for D1 from D0.Under this application scenarios, base station side can not send ePDCCH with fixing DMRS arrangement set Y-direction UE, thus base station side in first, second, and third stage, base station all adopts C0 to send ePDCCH to UE, adopts D0 to send PDSCH to UE.Reason is this three phases, and base station can not determine that UE has completed reconfiguration course, and namely base station does not know whether UE can receive PDSCH with D1.Fourth stage in base station side, namely in the situation that system is UE need to reshuffle signaling to DMRS and confirm, base station receives that UE rises while being successfully completed the confirmation that this reshuffles, perhaps in the situation that system is designed to UE need not that DMRS is reshuffled signaling and confirm, send from base station to UE after this DMRS reshuffles signaling and reach time delay thresholding M through default time delay, for example rise during 150 TTI, base station is thought that the DMRS for PDSCH reshuffles and is successfully completed, can adopt D1 to send PDSCH to UE.Therefore, from the base station side fourth stage, base station adopts C1 to send ePDCCH to UE, and adopts D1 to send PDSCH to UE.
In first stage and the second stage of UE side, UE adopts C0 to receive ePDCCH, and adopts D0 to receive PDSCH, until UE successfully receives the described DMRS of base station transmission, reshuffles signaling.Successfully receive from UE described DMRS that base station sends and reshuffle signaling and correctly receive ePDCCH or with D1, correctly receive PDSCH with C1 for the first time to UE, namely in the phase III of UE side, UE adopts C0 and C1 to receive ePDCCH.Here be noted that UE can determine C1 according to D1 according to default algorithm, perhaps determines by other means or from base station, obtains C1.UE when using C1 and C1 to receive ePDCCH, needs to determine whether UE correctly receives ePDCCH or with D1, correctly receive PDSCH with C1 for the first time.If UE uses C0 successfully to receive ePDCCH, UE uses D0 to receive PDSCH., if UE uses C1 correctly to receive ePDCCH, with D1, receive PDSCH.
As mentioned above, the fourth stage of base station side always is later than the fourth stage of UE side.
Adopt for the first time C1 correctly to receive ePDCCH or adopt D1 successfully to receive PDSCH and rise at UE, namely in the fourth stage of UE side, D0 completes to reshuffling of D1, and UE adopts C1 to receive ePDCCH, adopts D1 to receive PDSCH.
According to the embodiment of the present invention, the DMRS that adopts by segmenting DMRS reconfiguration course and each stage demodulation ePDCCH of corresponding configuration and PDSCH, during can eliminating DMRS and reshuffling, base station sends and UE receives the DMRS fuzzy problem that PDSCH adopts, improved the efficiency of system, reduce resource overhead, guaranteed proper communication.
, according to the embodiment of the present invention, also proposed to realize base station and the subscriber equipment of the method for the embodiment of the present invention.
Corresponding with the first application scenarios, namely ePDCCH can adopt the fixing incompatible demodulation of DMRS sequence sets, and the base station that the embodiment of the present invention proposes as shown in Figure 6.Base station 600 comprises:
Transmitting element 610, be used for sending ePDCCH with the first demodulated reference signal DMRS arrangement set Y or the 2nd DMRS arrangement set C0 to user equipment (UE), with the 3rd DMRS arrangement set D0, to UE, sends PDSCH;
Described transmitting element 610 is used for sending DMRS to described UE and reshuffles signaling, and wherein said DMRS reshuffles signaling and is used to indicate the DMRS arrangement set is reconfigured for the 4th DMRS arrangement set D1 from described the 3rd DMRS arrangement set D0;
Judging unit 620, be used for judging that described base station is after sending and reshuffling signaling, that whether receives that described UE returns reshuffles the confirmation signaling of signaling for described DMRS, is used for perhaps judging that described transmitting element sends described DMRS and whether surpasses default time delay thresholding after reshuffling signaling;
Before described base station is received the confirmation signaling of reshuffling signaling for described DMRS that described UE returns or surpass described time delay thresholding after the described DMRS of described transmitting element transmission is reshuffled signaling, described transmitting element 610 continues to send ePDCCH with a described DMRS arrangement set Y-direction UE, with described the 3rd DMRS arrangement set D0, to described UE, sends PDSCH;
After described base station was received the described confirmation signaling that described UE returns or surpass described time delay thresholding after the described DMRS of described transmitting element transmission is reshuffled signaling, described transmitting element sent PDSCH with described the 4th DMRS arrangement set D1 to described UE.
According to the embodiment of the present invention, after described base station was received the described confirmation signaling that described UE returns or surpass described time delay thresholding after the described transmitting element 610 described DMRS of transmission are reshuffled signaling, described transmitting element 610 sent ePDCCH with a described DMRS arrangement set Y or the 5th DMRS arrangement set C1 to described UE.
Corresponding with base station 600 shown in Figure 6, the subscriber equipment of the embodiment of the present invention as shown in Figure 7.Subscriber equipment 700 comprises:
Receiving element 710, be used for receiving with the first demodulated reference signal DMRS arrangement set Y and the 2nd DMRS arrangement set C0 the ePDCCH that base station sends, and with the 3rd DMRS arrangement set D0, receives the PDSCH that described base station sends;
Described receiving element 710 also is used for receiving the DMRS that described base station sends and reshuffles signaling, and wherein said DMRS reshuffles signaling and is used to indicate the DMRS arrangement set that is used for PDSCH is reconfigured for the 4th DMRS arrangement set D1 from described the 3rd DMRS arrangement set D0;
Described receiving element 710 also is used for receiving ePDCCH with the 5th DMRS arrangement set C1 and a described DMRS arrangement set Y;
The first judging unit 720, be used for determining whether described receiving element correctly receives ePDCCH or with described the 4th DMRS arrangement set D1, correctly receive PDSCH with described the 5th DMRS arrangement set C1 for the first time;
The second judging unit 730, be used for determining that described receiving element correctly receives ePDCCH or with described UE, with a described DMRS arrangement set Y, correctly receives ePDCCH with described the 5th DMRS arrangement set C1,
before described the first judging unit 720 determines that described receiving element 710 correctly receives for the first time ePDCCH or with described the 4th DMRS arrangement set D1, correctly receives PDSCH with described the 5th DMRS arrangement set C1, if described the second judging unit 720 is defined as described receiving element 710 and correctly receives ePDCCH with described the 2nd DMRS arrangement set Y, described receiving element 710 receives PDSCH with described the 3rd DMRS arrangement set D0, if described the second judging unit 730 is defined as described receiving element 710 and correctly receives ePDCCH with described the 5th DMRS arrangement set C1, described receiving element 710 receives PDSCH with described the 4th DMRS arrangement set D1.
According to the embodiment of the present invention, correctly receive ePDCCH or with described the 3rd DMRS arrangement set D1, correctly receive PDSCH with described the 5th DMRS arrangement set C1 for the first time in the situation that described the first judging unit 720 is defined as described receiving element 710,
Described receiving element 710 is used for receiving ePDCCH with described the 5th DMRS arrangement set C1 and a described DMRS arrangement set Y, with described the 4th DMRS arrangement set D1, receives PDSCH.
Corresponding with the first application scenarios, namely ePDCCH can not adopt the fixing incompatible demodulation of DMRS sequence sets, and the base station that the embodiment of the present invention proposes as shown in Figure 8.Base station 800 comprises:
Transmitting element 810, be used for sending ePDCCH with the first demodulated reference signal DMRS arrangement set C0 to UE, with the 2nd DMRS arrangement set D0, to UE, sends PDSCH;
Described transmitting element 810 is used for sending DMRS to described UE and reshuffles signaling, and wherein said DMRS reshuffles signaling and is used to indicate the DMRS arrangement set is reconfigured for described the 3rd DMRS arrangement set (D1) from described the 2nd DMRS arrangement set D0;
Judging unit 820, be used for judging that described base station is after sending and reshuffling signaling, that whether receives that described UE returns reshuffles the confirmation signaling of signaling for described DMRS, is used for perhaps judging that described transmitting element sends described DMRS and whether surpasses default time delay thresholding after reshuffling signaling;
Before described base station is received the confirmation signaling of reshuffling signaling for described DMRS that described UE returns or surpass described time delay thresholding after the described transmitting element 810 described DMRS of transmission is reshuffled signaling, described transmitting element 810 continues to send ePDCCH with a described DMRS arrangement set C0 to user equipment (UE), with described the 2nd DMRS arrangement set D0, to described UE, sends PDSCH;
After described base station was received the described confirmation signaling that described UE returns or surpass described time delay thresholding after the described transmitting element 810 described DMRS of transmission are reshuffled signaling, described transmitting element 810 sent PDSCH with described the 3rd DMRS arrangement set D1 to described UE.
, according to the embodiment of the present invention, receiving described confirmation signaling that described UE returns or after described time delay thresholding was overtime, described transmitting element 810 sent ePDCCH with the 4th DMRS arrangement set C1 to described UE.
Corresponding with base station 800, the subscriber equipment of the embodiment of the present invention as shown in Figure 9.Subscriber equipment 900 comprises:
Receiving element 910, be used for the first demodulated reference signal DMRS arrangement set C0 and receive the ePDCCH that base station sends, and with the 2nd DMRS arrangement set D0, receives the PDSCH that described base station sends;
Described receiving element 910 also is used for receiving the DMRS that described base station sends and reshuffles signaling, and wherein said DMRS reshuffles signaling and is used to indicate the DMRS arrangement set that is used for PDSCH is reconfigured for the 3rd DMRS arrangement set D1 from described the 2nd DMRS arrangement set D0;
Described receiving element 910 also is used for receiving ePDCCH with a described DMRS arrangement set C0 and the 4th DMRS arrangement set C1;
The first judging unit 920, be used for determining whether described receiving element correctly receives ePDCCH or with described the 3rd DMRS arrangement set D1, correctly receive PDSCH with described the 4th DMRS arrangement set C1 for the first time;
The second judging unit 930, be used for determining that described receiving element correctly receives ePDCCH or with described UE, with described the 4th DMRS arrangement set C1, correctly receives ePDCCH with a described DMRS arrangement set C0,
before described the first judging unit 920 determines that described receiving element 910 correctly receives for the first time ePDCCH or with described the 3rd DMRS arrangement set D1, correctly receives PDSCH with described the 4th DMRS arrangement set C1, if described the second judging unit 920 is defined as described receiving element 910 and correctly receives ePDCCH with a described DMRS arrangement set C0, described receiving element 910 receives PDSCH with described the 2nd DMRS arrangement set D0, if described the second judging unit 930 is defined as described receiving element 910 and correctly receives ePDCCH with described the 4th DMRS arrangement set C1, described receiving element 910 receives PDSCH with described the 3rd DMRS arrangement set D1.
According to the embodiment of the present invention, correctly receive ePDCCH or with described the 3rd DMRS arrangement set D1, correctly receive PDSCH with described the 4th DMRS arrangement set C1 for the first time in the situation that described the first judging unit 920 is defined as described receiving element 910,
Described receiving element 910 is used for receiving ePDCCH with described the 4th DMRS arrangement set C1, with described the 3rd DMRS arrangement set D1, receives PDSCH.
Those of ordinary skills can recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with the combination of electronic hardware or computer software and electronic hardware.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.The professional and technical personnel can specifically should be used for realizing described function with distinct methods to each, but this realization should not thought and exceeds scope of the present invention.
The those skilled in the art can be well understood to, and for convenience and simplicity of description, the specific works process of the system of foregoing description, device and unit, can, with reference to the corresponding process in preceding method embodiment, not repeat them here.
In several embodiment that the application provides, should be understood that disclosed system, apparatus and method can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described unit, be only that a kind of logic function is divided, during actual the realization, other dividing mode can be arranged, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.
Described unit as separating component explanation can or can not be also physically to separate, and the parts that show as unit can be or can not be also physical locations, namely can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select according to the actual needs wherein some or all of unit to realize the purpose of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit exists, and also can be integrated in a unit two or more unit.
If described function uses that the form of SFU software functional unit realizes and during as production marketing independently or use, can be stored in a computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words or the part of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out all or part of step of the described method of each embodiment of the present invention.And aforesaid storage medium comprises: the various media that can be program code stored such as USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection range with claim.
Claims (16)
1. the collocation method of a reference signal, is characterized in that, described method comprises:
Base station sends and strengthens Physical Downlink Control Channel ePDCCH to user equipment (UE) with the first demodulated reference signal DMRS arrangement set (Y) or the 2nd DMRS arrangement set (C0), with the 3rd DMRS arrangement set (D0), to UE, sends Physical Downlink Shared Channel PDSCH;
Described base station sends DMRS to described UE and reshuffles signaling, and wherein said DMRS reshuffles signaling and is used for and will be reconfigured for the 4th DMRS arrangement set (D1) from described the 3rd DMRS arrangement set (D0) for the DMRS arrangement set of PDSCH;
Base station is after sending and reshuffling signaling, that receives that described UE returns reshuffles the confirmation signaling of signaling or before default time delay thresholding is overtime for described DMRS, described base station continues to send ePDCCH with a DMRS arrangement set (Y) to user equipment (UE), with described the 3rd DMRS arrangement set (D0), to described UE, sends PDSCH;
Receiving described confirmation signaling that described UE returns or after described time delay thresholding was overtime, described base station sent PDSCH with described the 4th DMRS arrangement set (D1) to described UE.
2. the method for claim 1, is characterized in that,
After sending and reshuffling signaling, receive the described confirmation signaling that described UE returns or after described time delay thresholding was overtime, described base station sent ePDCCH with a described DMRS arrangement set (Y) or the 5th DMRS arrangement set (C1) to described UE.
3. the collocation method of a reference signal, is characterized in that, described method comprises:
Base station sends ePDCCH with a DMRS arrangement set (C0) to UE, with the 2nd DMRS arrangement set (D0), to UE, sends PDSCH;
Described base station sends DMRS to described UE and reshuffles signaling, and wherein said DMRS reshuffles signaling and is used for and will be reconfigured for the 3rd DMRS arrangement set (D1) from described the 2nd DMRS arrangement set (D0) for the DMRS arrangement set of PDSCH;
Base station is after sending and reshuffling signaling, that receives that described UE returns reshuffles the confirmation signaling of signaling or before default time delay thresholding is overtime for described DMRS, described base station continues to send ePDCCH with a described DMRS arrangement set (C0) to UE, with described the 2nd DMRS arrangement set (D0), to described UE, sends PDSCH;
Receiving described confirmation signaling that described UE returns or after described time delay thresholding was overtime, described base station sent PDSCH with described the 3rd DMRS arrangement set (D1) to described UE.
4. method as claimed in claim 3, is characterized in that,
After sending and reshuffling signaling, receive the described confirmation signaling that described UE returns or after described time delay thresholding was overtime, described base station sent ePDCCH with the 4th DMRS arrangement set (C1) to described UE.
5. the collocation method of a reference signal, is characterized in that, described method comprises:
User equipment (UE) receives with a DMRS arrangement set (Y) and the 2nd DMRS arrangement set (C0) ePDCCH that base station sends, and with the 3rd DMRS arrangement set (D0), receives the Physical Downlink Shared Channel PDSCH that described base station sends;
The DMRS that described UE receives the transmission of described base station reshuffles signaling, and wherein said DMRS reshuffles signaling and is used for and will be reconfigured for the 4th DMRS arrangement set (D1) from described the 3rd DMRS arrangement set (D0) for the DMRS arrangement set of PDSCH;
Described UE receives ePDCCH with the 5th DMRS arrangement set (C1) and a described DMRS arrangement set (Y);
Described UE determines whether correctly to receive ePDCCH or with described the 4th DMRS arrangement set (D1), correctly receive PDSCH with described the 5th DMRS arrangement set (C1) for the first time;
Described UE correctly receives for the first time ePDCCH or with described the 4th DMRS arrangement set (D1), correctly receives PDSCH with described the 5th DMRS arrangement set (C1) before, if described UE correctly receives ePDCCH with a described DMRS arrangement set (Y), described UE receives PDSCH with described the 3rd DMRS arrangement set (D0), if described UE correctly receives ePDCCH with described the 5th DMRS arrangement set (C1), described UE receives PDSCH with described the 4th DMRS arrangement set (D1).
6. method as claimed in claim 5, is characterized in that, described method further comprises:
Described UE correctly receives for the first time ePDCCH or with described the 3rd DMRS arrangement set (D1), correctly receives PDSCH with described the 5th DMRS arrangement set (C1) after,
Described UE receives ePDCCH with described the 5th DMRS arrangement set (C1) and a described DMRS arrangement set (Y), with described the 4th DMRS arrangement set (D1), receives PDSCH.
7. the collocation method of a reference signal, is characterized in that, described method comprises:
User equipment (UE) receives with a DMRS arrangement set (C0) ePDCCH that base station sends, and with the 2nd DMRS arrangement set (D0), receives the PDSCH that described base station sends;
The DMRS that described UE receives the transmission of described base station reshuffles signaling, and wherein said DMRS reshuffles signaling and is used for and will be reconfigured for the 3rd DMRS arrangement set (D1) from described the 2nd DMRS arrangement set (D0) for the DMRS arrangement set of PDSCH;
Described UE receives ePDCCH with a described DMRS arrangement set (C0) and the 4th DMRS arrangement set (C1);
Described UE determines whether correctly to receive ePDCCH or with described the 3rd DMRS arrangement set (D1), correctly receive PDSCH with described the 4th DMRS arrangement set (C1) for the first time;
Described UE correctly receives for the first time ePDCCH or with described the 3rd DMRS arrangement set (D1), correctly receives PDSCH with described the 4th DMRS arrangement set (C1) before, if described UE correctly receives ePDCCH with a described DMRS arrangement set (C0), described UE receives PDSCH with described the 2nd DMRS arrangement set (D0), if described UE correctly receives ePDCCH with described the 4th DMRS arrangement set (C1), described UE receives PDSCH with described the 3rd DMRS arrangement set (D1).
8. method as claimed in claim 7, is characterized in that, described method further comprises:
Described UE correctly receives for the first time ePDCCH or with described the 3rd DMRS arrangement set (D1), correctly receives PDSCH with described the 4th DMRS arrangement set (C1) after,
Described UE receives ePDCCH with described the 4th DMRS arrangement set (C1), with described the 3rd DMRS arrangement set (D1), receives PDSCH.
9. a base station, is characterized in that, described base station comprises:
Transmitting element, be used for sending and strengthening Physical Downlink Control Channel ePDCCH to user equipment (UE) with the first demodulated reference signal DMRS arrangement set (Y) or the 2nd DMRS arrangement set (C0), with the 3rd DMRS arrangement set (D0), to UE, send Physical Downlink Shared Channel PDSCH;
Described transmitting element is used for sending DMRS to described UE and reshuffles signaling, and wherein said DMRS reshuffles signaling and is used to indicate the DMRS arrangement set is reconfigured for the 4th DMRS arrangement set (D1) from described the 3rd DMRS arrangement set (D0);
Judging unit, be used for judging that described transmitting element is after sending and reshuffling signaling, that whether receives that described UE returns reshuffles the confirmation signaling of signaling for described DMRS, is used for perhaps judging that described transmitting element sends described DMRS and whether surpasses default time delay thresholding after reshuffling signaling;
Before described base station is received the confirmation signaling of reshuffling signaling for described DMRS that described UE returns or surpass described time delay thresholding after the described DMRS of described transmitting element transmission is reshuffled signaling, described transmitting element continues to send ePDCCH with a described DMRS arrangement set (Y) to user equipment (UE), with described the 3rd DMRS arrangement set (D0), to described UE, sends PDSCH
After described base station was received the described confirmation signaling that described UE returns or surpass described time delay thresholding after the described DMRS of described transmitting element transmission is reshuffled signaling, described transmitting element sent PDSCH with described the 4th DMRS arrangement set (D1) to described UE.
10. base station as claimed in claim 9, is characterized in that,
After described base station was received the described confirmation signaling that described UE returns or surpass described time delay thresholding after the described DMRS of described transmitting element transmission is reshuffled signaling, described transmitting element sent ePDCCH with a described DMRS arrangement set (Y) or the 5th DMRS arrangement set (C1) to described UE.
11. a base station, is characterized in that, described base station comprises:
Transmitting element, be used for sending ePDCCH with the first demodulated reference signal DMRS arrangement set (C0) to user equipment (UE), with the 2nd DMRS arrangement set (D0), to UE, sends Physical Downlink Shared Channel PDSCH;
Described transmitting element is used for sending DMRS to described UE and reshuffles signaling, and wherein said DMRS reshuffles signaling and is used to indicate the DMRS arrangement set is reconfigured for described the 3rd DMRS arrangement set (D1) from described the 2nd DMRS arrangement set (D0);
Judging unit, be used for judging that described base station is after sending and reshuffling signaling, that whether receives that described UE returns reshuffles the confirmation signaling of signaling for described DMRS, is used for perhaps judging that described transmitting element sends described DMRS and whether surpasses default time delay thresholding after reshuffling signaling;
Before described base station is received the confirmation signaling of reshuffling signaling for described DMRS that described UE returns or surpass described time delay thresholding after the described DMRS of described transmitting element transmission is reshuffled signaling, described transmitting element continues to send ePDCCH with a described DMRS arrangement set (C0) to user equipment (UE), with described the 2nd DMRS arrangement set (D0), to described UE, sends PDSCH;
After described base station was received the described confirmation signaling that described UE returns or surpass described time delay thresholding after the described DMRS of described transmitting element transmission is reshuffled signaling, described transmitting element sent PDSCH with described the 3rd DMRS arrangement set (D1) to described UE.
12. base station as claimed in claim 11, is characterized in that,
Receiving described confirmation signaling that described UE returns or after described time delay thresholding was overtime, described transmitting element sent ePDCCH with the 4th DMRS arrangement set (C1) to described UE.
13. a subscriber equipment, is characterized in that, described subscriber equipment comprises:
Receiving element, be used for receiving with the first demodulated reference signal DMRS arrangement set (Y) and the 2nd DMRS arrangement set (C0) ePDCCH that base station sends, and with the 3rd DMRS arrangement set (D0), receives the PDSCH that described base station sends;
Described receiving element also is used for receiving the DMRS that described base station sends and reshuffles signaling, and wherein said DMRS reshuffles signaling and is used to indicate the DMRS arrangement set that is used for PDSCH is reconfigured for the 4th DMRS arrangement set (D1) from described the 3rd DMRS arrangement set (D0);
Described receiving element also is used for receiving ePDCCH with the 5th DMRS arrangement set (C1) and a described DMRS arrangement set (Y);
The first judging unit, be used for determining whether described receiving element correctly receives ePDCCH or with described the 4th DMRS arrangement set (D1), correctly receive PDSCH with described the 5th DMRS arrangement set (C1) for the first time;
The second judging unit, be used for determining that described receiving element correctly receives ePDCCH or with described UE, with a described DMRS arrangement set (Y), correctly receives ePDCCH with described the 5th DMRS arrangement set (C1),
before described the first judging unit determines that described receiving element correctly receives for the first time ePDCCH or with described the 4th DMRS arrangement set (D1), correctly receives PDSCH with described the 5th DMRS arrangement set (C1), if described the second judging unit is defined as described receiving element and correctly receives ePDCCH with a described DMRS arrangement set (Y), described receiving element receives PDSCH with described the 3rd DMRS arrangement set (D0), if described the second judging unit is defined as described receiving element and correctly receives ePDCCH with described the 5th DMRS arrangement set (C1), described receiving element receives PDSCH with described the 4th DMRS arrangement set (D1).
14. subscriber equipment as claimed in claim 13, is characterized in that,
Correctly receive ePDCCH or with described the 3rd DMRS arrangement set (D1), correctly receive PDSCH with described the 5th DMRS arrangement set (C1) for the first time in the situation that described the first judging unit is defined as described receiving element,
Described receiving element is used for receiving ePDCCH with described the 5th DMRS arrangement set (C1) and a described DMRS arrangement set (Y), with described the 4th DMRS arrangement set (D1), receives PDSCH.
15. a subscriber equipment, is characterized in that, described subscriber equipment comprises:
Receiving element, be used for the first demodulated reference signal DMRS arrangement set (C0) and receive the ePDCCH that base station sends, and with the 2nd DMRS arrangement set (D0), receives the PDSCH that described base station sends;
Described receiving element also is used for receiving the DMRS that described base station sends and reshuffles signaling, and wherein said DMRS reshuffles signaling and is used to indicate the DMRS arrangement set that is used for PDSCH is reconfigured for the 3rd DMRS arrangement set (D1) from described the 2nd DMRS arrangement set (D0);
Described receiving element also is used for receiving ePDCCH with a described DMRS arrangement set (C0) and the 4th DMRS arrangement set (C1);
The first judging unit, be used for determining whether described receiving element correctly receives ePDCCH or with described the 3rd DMRS arrangement set (D1), correctly receive PDSCH with described the 4th DMRS arrangement set (C1) for the first time;
The second judging unit, be used for determining that described receiving element correctly receives ePDCCH or with described UE, with described the 4th DMRS arrangement set (C1), correctly receives ePDCCH with a described DMRS arrangement set (C0),
before described the first judging unit determines that described receiving element correctly receives for the first time ePDCCH or with described the 3rd DMRS arrangement set (D1), correctly receives PDSCH with described the 4th DMRS arrangement set (C1), if described the second judging unit is defined as described receiving element and correctly receives ePDCCH with a described DMRS arrangement set (C0), described receiving element receives PDSCH with described the 2nd DMRS arrangement set (D0), if described the second judging unit is defined as described receiving element and correctly receives ePDCCH with described the 4th DMRS arrangement set (C1), described receiving element receives PDSCH with described the 3rd DMRS arrangement set (D1).
16. subscriber equipment as claimed in claim 15, is characterized in that,
Correctly receive ePDCCH or with described the 3rd DMRS arrangement set (D1), correctly receive PDSCH with described the 4th DMRS arrangement set (C1) for the first time in the situation that described the first judging unit is defined as described receiving element,
Described receiving element is used for receiving ePDCCH with described the 4th DMRS arrangement set (C1), with described the 3rd DMRS arrangement set (D1), receives PDSCH.
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 |
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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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| CN108886451A (en) * | 2016-04-08 | 2018-11-23 | 高通股份有限公司 | Downlink for demodulated reference signal transmissions controls |
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| 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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| US20020164029A1 (en) * | 2001-05-07 | 2002-11-07 | Jiang Sam Shiaw-Shiang | Frame number identification and ciphering activation time synchronization for a wireless communications protocol |
| CN102111893A (en) * | 2009-12-23 | 2011-06-29 | 富士通株式会社 | Method and device for transmitting downlink scheduling singling |
| US20120087318A1 (en) * | 2010-10-07 | 2012-04-12 | Futurewei Technologies, Inc. | System and Method for Search Space Reconfiguration in a Communications System |
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| CN108886451A (en) * | 2016-04-08 | 2018-11-23 | 高通股份有限公司 | Downlink for demodulated reference signal transmissions controls |
| CN108886451B (en) * | 2016-04-08 | 2021-11-30 | 高通股份有限公司 | Wireless communication method, equipment and computer readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103391155B (en) | 2016-12-14 |
| WO2013166879A1 (en) | 2013-11-14 |
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