CN102468948A - Method and system for carrying out non-periodic scheduling through physical downlink control channel (PDCCH) - Google Patents
Method and system for carrying out non-periodic scheduling through physical downlink control channel (PDCCH) Download PDFInfo
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Abstract
The invention provides a method and system for carrying out non-periodic scheduling through a physical downlink control channel (PDCCH). A processing procedure of a base station comprises the following steps: A1, sending a scheduled configuration signaling to user equipment (UE) by a base station through the PDCCH, wherein the time of sending the scheduled uplink signaling is stipulated in the scheduled configuration signaling; B1, detecting that whether the scheduled uplink signaling from the UE is received or not by the base station at the time of sending the scheduled uplink signaling, constructing a new scheduled configuration signaling if the scheduled uplink signaling from the UE is received and returning to the step A1, or resending the same scheduled configuration signaling to the UE by the base station through the PDCCH if the scheduled uplink signaling from the UE is not received and repeatedly implementing the step B1. The invention further provides other methods and systems of carrying out non-periodic scheduling through the PDCCH. The scheme of the invention can be used for confronting the influence of wireless channel decline and improving the service capacity decline caused by missed detection or false detection of the scheduled configuration signaling.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to the method and system that carries out scheduling aperiodic through Physical Downlink Control Channel (PDCCH).
Background technology
In long evolving system LTE system, subscriber equipment (UE) is according to the configuration information of base station (eNB), in certain time-frequency position; Use certain resource to send measuring-signal (SRS; SoundingReference Signal), eNB is according to the SRS information measurement channel condition information (CSI, Channel State Information) that receives; And carry out dynamic dispatching, power control, operations such as resource allocation according to the CSI information that measure to obtain.
In the further evolution scheme of LTE system, SRS can carry out aperiodic through the dynamic dispatching of control channel and send.
In wireless communication system, because the fading characteristic of wireless channel, transfer of data is insecure, therefore, accomplishes SRS dispatch command transmission aperiodic through the control channel scheduling.Because the control channel wireless transmission exists certain omission probability of false detection (about 1%; Detailed content is referring to agreement document " 36.101-930 "; For example Physical Downlink Control Channel (PDCCH) omission probability of false detection is 1%), simultaneously because there is not retransmission mechanism in control channel, can cause aperiodic SRS dispatch to lose; And further cause UE can't correctly send SRS, thereby influence service feature.
Summary of the invention
In view of this, the invention provides the method and system that carries out scheduling aperiodic through physical downlink control channel PDCCH, can improve because the service feature decline problem that control channel scheduling SRS omission flase drop brings.
The embodiment of the invention has proposed a kind of method of carrying out scheduling aperiodic through PDCCH, and the processing procedure of base station comprises the steps:
A1, base station issue the scheduling configuration signal through PDCCH to user equipment (UE), the delivery time of the up signaling that regulation is scheduled in the said scheduling configuration signal;
B1, base station detect whether receive the up signaling that is scheduled from UE at the delivery time of the said up signaling that is scheduled, if then construct new scheduling configuration signal, and return steps A 1; Otherwise the base station is sent identical scheduling configuration signal through PDCCH to UE once more, and repeated execution of steps B1.
Preferably; Said base station through PDCCH to UE issue scheduling configuration signal and base station through PDCCH when UE sends identical scheduling configuration signal once more; Start a timer, this length of timer is more than or equal to the delivery time of the up signaling that is scheduled and the time difference in the moment of sending the scheduling configuration signal;
Said base station detects whether receive that the up signaling that is scheduled from UE is at the delivery time of the said up signaling that is scheduled: whether receive the up signaling that is scheduled from UE before the said timer expiry of base station judges.
Preferably, said scheduling configuration signal is that measuring-signal sends indication signaling, channel quality indication dynamic-configuration signaling or carrier aggregation dynamically active configuration signal.
Preferably, the processing of base station side further comprises:
The base station receives the up signaling that is scheduled from UE; Whether the quality of judging the up signaling of being received that is scheduled satisfies the trigger condition that repeats to send the scheduling configuration signal, if PDCCH is passed through in the base station; In same subframe, repeat to send M scheduling configuration signal; Perhaps, the base station is in continuous N sub-frame, and each subframe is sent a scheduling configuration signal.
Preferably, saidly satisfy the trigger condition repeat to send the scheduling configuration signal and be:
The intensity of the up signaling that is scheduled is lower than the signal strength threshold that is provided with in advance;
The error rate of the up signaling that is scheduled surpasses the error rate threshold value that is provided with in advance; Perhaps,
The number of times that the base station repeats to send same scheduling configuration signal is above the maximum times that is provided with in advance.
Preferably, said M is 2 or 4.
Preferably, said N is 2,3 or 4.
The embodiment of the invention has also proposed another kind of method of carrying out scheduling aperiodic through PDCCH, and the processing procedure of base station side comprises:
A2, base station issue the scheduling configuration signal through PDCCH to user equipment (UE), the delivery time of the up signaling that regulation is scheduled in the said scheduling configuration signal;
Whether B2, base station judges receive the affirmation message ACK from UE in the next subframe that issues the scheduling configuration signal, if then construct new scheduling configuration signal and return steps A 2; Otherwise identical scheduling configuration signal is sent once more to UE in the base station, and repeated execution of steps B2;
The processing procedure of user equipment (UE) side comprises: UE is after receiving the order of scheduling configuration signal; Send acknowledge message ACK to the base station immediately in next subframe, the delivery time in the up signaling that is scheduled of dispatching the configuration signal regulation sends the said up signaling that is scheduled then.
Preferably, the processing of base station side further comprises:
The base station receives the up signaling that is scheduled from UE; Whether the quality of judging the up signaling of being received that is scheduled satisfies the trigger condition that repeats to send the scheduling configuration signal, if PDCCH is passed through in the base station; In same subframe, repeat to send M scheduling configuration signal; Perhaps, the base station is in continuous N sub-frame, and each subframe is sent a scheduling configuration signal.
Preferably, saidly satisfy the trigger condition repeat to send the scheduling configuration signal and be:
The intensity of the up signaling that is scheduled is lower than the signal strength threshold that is provided with in advance;
The error rate of the up signaling that is scheduled surpasses the error rate threshold value that is provided with in advance; Perhaps,
The number of times that the base station repeats to send same scheduling configuration signal is above the maximum times that is provided with in advance.
The embodiment of the invention proposes another through the method that road PDCCH carries out scheduling aperiodic, and the processing of base station side comprises:
The base station receives the up signaling from UE; Whether the quality of judging the up signaling received satisfies the trigger condition that repeats to send the scheduling configuration signal that is used to dispatch said up signaling, if physical downlink control channel PDCCH is passed through in the base station; In same subframe, repeat to send M scheduling configuration signal; Perhaps, the base station is in continuous N sub-frame, and each subframe is sent a scheduling configuration signal.
The embodiment of the invention also proposes a kind of system that carries out scheduling aperiodic through PDCCH, and this system comprises base station and user equipment (UE), it is characterized in that,
Said base station is used for issuing the scheduling configuration signal through PDCCH to user equipment (UE), the delivery time of the up signaling that regulation is scheduled in the said scheduling configuration signal; The base station also is used for detecting whether receive the up signaling that is scheduled from UE at the delivery time of the said up signaling that is scheduled, if then construct new scheduling configuration signal, and be handed down to UE; Otherwise the base station is sent identical scheduling configuration signal through PDCCH to UE once more;
Said UE is used for after receiving the scheduling configuration signal, sends the said up signaling that is scheduled at the delivery time of the up signaling that is scheduled of said scheduling configuration signal regulation.
Preferably; Said base station is further used for; Through PDCCH to UE issue scheduling configuration signal and base station through PDCCH when UE sends identical scheduling configuration signal once more; Start a timer, this length of timer is more than or equal to the delivery time of the up signaling that is scheduled and the time difference in the moment of sending the scheduling configuration signal;
Said base station detects whether receive that the up signaling that is scheduled from UE is at the delivery time of the said up signaling that is scheduled: whether receive the up signaling that is scheduled from UE before the said timer expiry of base station judges.
Preferably, said scheduling configuration signal is that measuring-signal sends indication signaling, channel quality indication dynamic-configuration signaling or carrier aggregation dynamically active configuration signal.
Preferably, said base station is further used for:
Reception is from the up signaling that is scheduled of UE; Whether the quality of judging the up signaling of being received that is scheduled satisfies the trigger condition that repeats to send the scheduling configuration signal, if, through PDCCH; In same subframe, repeat to send M scheduling configuration signal; Perhaps, in continuous N sub-frame, each subframe is sent a scheduling configuration signal.
Preferably, saidly satisfy the trigger condition repeat to send the scheduling configuration signal and be:
The intensity of the up signaling that is scheduled is lower than the signal strength threshold that is provided with in advance;
The error rate of the up signaling that is scheduled surpasses the error rate threshold value that is provided with in advance; Perhaps,
The number of times that the base station repeats to send same scheduling configuration signal is above the maximum times that is provided with in advance.
The embodiment of the invention proposes the another kind of system that carries out scheduling aperiodic through PDCCH, and this system comprises base station and UE, it is characterized in that,
Said base station is used for issuing the scheduling configuration signal through PDCCH to UE, the delivery time of the up signaling that regulation is scheduled in the said scheduling configuration signal; And be used to judge in the next subframe that issues the scheduling configuration signal whether receive affirmation message ACK from UE, if then construct new scheduling configuration signal and be handed down to; Otherwise identical scheduling configuration signal is sent once more to UE in the base station;
Said UE is used for: after receiving the order of scheduling configuration signal, send acknowledge message ACK to the base station immediately in next subframe, the delivery time in the up signaling that is scheduled of dispatching the configuration signal regulation sends the said up signaling that is scheduled then.
Preferably, said base station is further used for:
Reception is from the up signaling that is scheduled of UE; Whether the quality of judging the up signaling of being received that is scheduled satisfies the trigger condition that repeats to send the scheduling configuration signal, if PDCCH is passed through in the base station; In same subframe, repeat to send M scheduling configuration signal; Perhaps, the base station is in continuous N sub-frame, and each subframe is sent a scheduling configuration signal.
The embodiment of the invention proposes another system that carries out scheduling aperiodic through physical downlink control channel PDCCH; This system comprises base station and UE; Said base station is used for: receive the up signaling from UE, whether the quality of judging the up signaling of being received satisfies the trigger condition that repeats to send the scheduling configuration signal that is used to dispatch said up signaling, if; Pass through physical downlink control channel PDCCH; In same subframe, repeat to send M scheduling configuration signal, the base station is in continuous N sub-frame, and each subframe is sent a scheduling configuration signal;
Said UE is used for behind the scheduling configuration signal of receiving from the base station, sends the up signaling that is scheduled to the base station.
Can find out from above technical scheme; In the process of carrying out scheduling aperiodic through PDCCH, increased the retransmission mechanism of scheduling configuration signal; Repeat to send identical scheduling configuration signal under the certain condition satisfying, the present invention program is not only applicable to dispatch aperiodic SRS, for the up signaling of dispatching other types through PDCCH aperiodic; For example aperiodic channel quality indicator (CQI) scheduling and dynamic carrier polymerization (CC) activate scheduling etc., are suitable for too.The present invention program can resist the influence of the decline of wireless channel, improves because the professional ability that the omission flase drop of dispatching configuration signal is caused descends.
Description of drawings
Fig. 1 is the handling process sketch map of base station in the embodiment of the invention one;
Fig. 2 is the handling process sketch map of base station in the embodiment of the invention two;
Fig. 3 is the handling process sketch map of base station in the embodiment of the invention three.
Embodiment
Embodiment of the invention scheme increases the retransmission mechanism that SRS sends indication signaling through in aperiodic SRS signal dispatching process, with the decline of the antagonism wireless channel influence to acyclic SRS signal dispatching. improve the reliability of scheduling SRS aperiodic.Below through a plurality of embodiment the present invention program is specified.
Embodiment one: base station eNB realizes that through the automatic error detection technology SRS sends the re-transmission of indication signaling.
Among the embodiment one, UE is after receiving SRS transmission indication signaling, and the delivery time that sends the SRS of indication signaling regulation at SRS sends SRS.The handling process of base station is as shown in Figure 1 among the embodiment one, comprises the steps:
Step 101: the base station issues SRS to UE and sends indication signaling, and said SRS sends the delivery time of regulation SRS in the indication signaling.
Step 102: the base station detects whether receive the SRS from UE at the delivery time of said SRS, if then execution in step 104, otherwise execution in step 103.
Step 103: the base station is sent identical SRS once more to UE and is sent indication signaling, and returns execution in step 102.
Step 104: construct new SRS and send indication signaling, and return step 101.
The scheme of embodiment one can also adopt following execution mode: the base station starts a timer when sending SRS and sending indication signaling, this length of timer more than or equal to the delivery time of SRS with send the time difference that SRS send the moment of indication signaling.Whether receive SRS before the said timer expiry of base station judges from UE, if, process ends then, otherwise the base station is sent said SRS once more to UE and is sent indication signaling.
The shortcoming of embodiment one is that time delay is bigger.
Embodiment two: UE realizes that through automatic request retransmission technology SRS sends the re-transmission of indication signaling.
Among the embodiment two, UE sends acknowledge message ACK to the base station in next subframe immediately after receiving SRS transmission indication signaling, sends the delivery time transmission SRS of the SRS of indication signaling regulation then at SRS.
The handling process of base station is as shown in Figure 2 among the embodiment two, comprises the steps:
Step 201: the base station issues SRS to UE and sends indication signaling.Said SRS sends the delivery time of regulation SRS in the indication signaling.
Step 202: whether base station judges is received in the next subframe that issues SRS transmission indicator
From the affirmation message ACK of UE, if, execution in step 204; Otherwise execution in step 203.
Step 203: the base station is sent identical SRS once more to UE and is sent indication signaling, and returns execution in step 202.
Step 204: construct new SRS and send indication signaling and return step 201.
With respect to embodiment one, the time delay of embodiment two is dwindled greatly, sends signaling but embodiment two needs to increase acknowledge message, increases empty overhead.
Embodiment three: base station eNB realizes that through redundant transmission technology SRS sends the re-transmission of indication signaling.
The basic thought of embodiment three is that when base station eNB judged that the UE signal is lower than certain thresholding, the SRS that sends a plurality of these UE at same PDCCH channel sent indication signaling; Perhaps, the SRS that in the PDCCH of continuous a plurality of descending sub frames, sends this UE sends indication signaling.
The handling process of embodiment three is as shown in Figure 3, comprises the steps:
Step 301: SRS scheduling aperiodic is carried out according to the mode of prior art or embodiment one or embodiment two in the base station.
Step 302: the base station receives the SRS signal from UE, judges whether the SRS signal quality of being received satisfies the trigger condition that repeats to send SRS transmission index signal, if then execution in step 303, otherwise, return step 301.
Said repeat to send trigger condition that SRS sends index signal can be as follows any:
Whether the intensity of SRS signal is lower than the signal strength threshold that is provided with in advance, if then satisfy said trigger condition;
Whether the error rate of SRS signal surpasses the error rate threshold value that is provided with in advance, if then satisfy said trigger condition; Perhaps,
The base station is according to embodiment one or embodiment two described modes, and the number of times that repeats to send same SRS transmission indication signaling is above the maximum times that is provided with in advance, then for satisfying said trigger condition.
Step 303: the base station is repeated to send M SRS and is sent indication signaling through the PDCCH channel in same subframe, and perhaps, the base station is in continuous N sub-frame, and each subframe is sent a SRS and sent indication signaling.Preferably, base station one of configuration before repeating to send each PDCCH that SRS sends indication signaling repeats to send indication, with notice UE will carry out SRS send indication signaling repeat send; Perhaps, notify UE will carry out the transmission that repeats that SRS sends indication signaling through radio resource control signaling (RRC) or other modes.
Preferably, said M is 2 or 4.Said N is 2,3 or 4.
The above embodiment utilizes PDCCH to dispatch SRS aperiodic; And the inventive concept that the embodiment scheme is embodied is equally applicable to dispatch aperiodic through PDCCH the up signaling of other types, and for example aperiodic channel quality indicator (CQI) scheduling and dynamic carrier polymerization (CC) activate scheduling etc.
The processing procedure of the base station of embodiment one can be expressed as and comprise the steps:
A1, base station issue the scheduling configuration signal through PDCCH to user equipment (UE), the delivery time of the up signaling that regulation is scheduled in the said scheduling configuration signal;
B1, base station detect whether receive the up signaling that is scheduled from UE at the delivery time of the said up signaling that is scheduled, if then construct new scheduling configuration signal, and return steps A 1; Otherwise the base station is sent identical scheduling configuration signal through PDCCH to UE once more, and repeated execution of steps B1.
Wherein, The scheduling configuration signal can send indication signaling, channel quality indication dynamic-configuration signaling or carrier aggregation dynamically active configuration signal for measuring-signal, corresponds respectively to dispatch SRS, aperiodic aperiodic and dispatch CQI and carry out the dynamic carrier polymerization aperiodic and activate scheduling.
The embodiment of the invention four provides a kind of system that carries out scheduling aperiodic through PDCCH, and this system comprises base station and UE,
Said base station is used for issuing the scheduling configuration signal through PDCCH to user equipment (UE), the delivery time of the up signaling that regulation is scheduled in the said scheduling configuration signal; The base station also is used for detecting whether receive the up signaling that is scheduled from UE at the delivery time of the said up signaling that is scheduled, if then construct new scheduling configuration signal, and be handed down to UE; Otherwise the base station is sent identical scheduling configuration signal through PDCCH to UE once more;
Said UE is used for after receiving the scheduling configuration signal, sends the said up signaling that is scheduled at the delivery time of the up signaling that is scheduled of said scheduling configuration signal regulation.
Preferably; Said base station is further used for; Through PDCCH to UE issue scheduling configuration signal and base station through PDCCH when UE sends identical scheduling configuration signal once more; Start a timer, this length of timer is more than or equal to the delivery time of the up signaling that is scheduled and the time difference in the moment of sending the scheduling configuration signal;
Said base station detects whether receive that the up signaling that is scheduled from UE is at the delivery time of the said up signaling that is scheduled: whether receive the up signaling that is scheduled from UE before the said timer expiry of base station judges.
Preferably, said scheduling configuration signal is that measuring-signal sends indication signaling, channel quality indication dynamic-configuration signaling or carrier aggregation dynamically active configuration signal.
Preferably, said base station is further used for:
Reception is from the up signaling that is scheduled of UE; Whether the quality of judging the up signaling of being received that is scheduled satisfies the trigger condition that repeats to send the scheduling configuration signal, if, through PDCCH; In same subframe, repeat to send M scheduling configuration signal; Perhaps, in continuous N sub-frame, each subframe is sent a scheduling configuration signal.
Preferably, saidly satisfy the trigger condition repeat to send the scheduling configuration signal and be:
The intensity of the up signaling that is scheduled is lower than the signal strength threshold that is provided with in advance;
The error rate of the up signaling that is scheduled surpasses the error rate threshold value that is provided with in advance; Perhaps,
The number of times that the base station repeats to send same scheduling configuration signal is above the maximum times that is provided with in advance.
The embodiment of the invention five provides a kind of system that carries out scheduling aperiodic through PDCCH, and this system comprises base station and UE, it is characterized in that,
Said base station is used for issuing the scheduling configuration signal through PDCCH to UE, the delivery time of the up signaling that regulation is scheduled in the said scheduling configuration signal; And be used to judge in the next subframe that issues the scheduling configuration signal whether receive affirmation message ACK from UE, if then construct new scheduling configuration signal and be handed down to; Otherwise identical scheduling configuration signal is sent once more to UE in the base station;
Said UE is used for: after receiving the order of scheduling configuration signal, send acknowledge message ACK to the base station immediately in next subframe, the delivery time in the up signaling that is scheduled of dispatching the configuration signal regulation sends the said up signaling that is scheduled then.
Preferably, said base station is further used for:
Reception is from the up signaling that is scheduled of UE; Whether the quality of judging the up signaling of being received that is scheduled satisfies the trigger condition that repeats to send the scheduling configuration signal, if PDCCH is passed through in the base station; In same subframe, repeat to send M scheduling configuration signal; Perhaps, the base station is in continuous N sub-frame, and each subframe is sent a scheduling configuration signal.
The embodiment of the invention six provides a kind of system that carries out scheduling aperiodic through PDCCH; This system comprises base station and user equipment (UE); Said base station is used for: receive the up signaling from UE, whether the quality of judging the up signaling of being received satisfies the trigger condition that repeats to send the scheduling configuration signal that is used to dispatch said up signaling, if; Pass through physical downlink control channel PDCCH; In same subframe, repeat to send M scheduling configuration signal, the base station is in continuous N sub-frame, and each subframe is sent a scheduling configuration signal;
Said UE is used for behind the scheduling configuration signal of receiving from the base station, sends the up signaling that is scheduled to the base station.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope that the present invention protects.
Claims (19)
1. a method of carrying out scheduling aperiodic through physical downlink control channel PDCCH is characterized in that the processing procedure of base station comprises the steps:
A 1, base station issue the scheduling configuration signal through PDCCH to user equipment (UE), the delivery time of the up signaling that regulation is scheduled in the said scheduling configuration signal;
B1, base station detect whether receive the up signaling that is scheduled from UE at the delivery time of the said up signaling that is scheduled, if then construct new scheduling configuration signal, and return steps A 1; Otherwise the base station is sent identical scheduling configuration signal through PDCCH to UE once more, and repeated execution of steps B1.
2. method according to claim 1; It is characterized in that; Said base station through PDCCH to UE issue scheduling configuration signal and base station through PDCCH when UE sends identical scheduling configuration signal once more; Start a timer, this length of timer is more than or equal to the delivery time of the up signaling that is scheduled and the time difference in the moment of sending the scheduling configuration signal;
Said base station detects whether receive that the up signaling that is scheduled from UE is at the delivery time of the said up signaling that is scheduled: whether receive the up signaling that is scheduled from UE before the said timer expiry of base station judges.
3. method according to claim 1 is characterized in that, said scheduling configuration signal is that measuring-signal sends indication signaling, channel quality indication dynamic-configuration signaling or carrier aggregation dynamically active configuration signal.
4. according to claim 1,2 or 3 described methods, it is characterized in that the processing of base station side further comprises:
The base station receives the up signaling that is scheduled from UE; Whether the quality of judging the up signaling of being received that is scheduled satisfies the trigger condition that repeats to send the scheduling configuration signal, if PDCCH is passed through in the base station; In same subframe, repeat to send M scheduling configuration signal; Perhaps, the base station is in continuous N sub-frame, and each subframe is sent a scheduling configuration signal.
5. method according to claim 4 is characterized in that, saidly satisfies the trigger condition repeat to send the scheduling configuration signal and is:
The intensity of the up signaling that is scheduled is lower than the signal strength threshold that is provided with in advance;
The error rate of the up signaling that is scheduled surpasses the error rate threshold value that is provided with in advance; Perhaps,
The number of times that the base station repeats to send same scheduling configuration signal is above the maximum times that is provided with in advance.
6. method according to claim 4 is characterized in that, said M is 2 or 4.
7. method according to claim 4 is characterized in that, said N is 2,3 or 4.
8. method of carrying out aperiodic scheduling through physical downlink control channel PDCCH is characterized in that the processing procedure of base station side comprises:
A2, base station issue the scheduling configuration signal through PDCCH to user equipment (UE), the delivery time of the up signaling that regulation is scheduled in the said scheduling configuration signal;
Whether B2, base station judges receive the affirmation message ACK from UE in the next subframe that issues the scheduling configuration signal, if then construct new scheduling configuration signal and return steps A 2; Otherwise identical scheduling configuration signal is sent once more to UE in the base station, and repeated execution of steps B2;
The processing procedure of user equipment (UE) side comprises: UE is after receiving the order of scheduling configuration signal; Send acknowledge message ACK to the base station immediately in next subframe, the delivery time in the up signaling that is scheduled of dispatching the configuration signal regulation sends the said up signaling that is scheduled then.
9. method according to claim 8 is characterized in that, the processing of base station side further comprises:
The base station receives the up signaling that is scheduled from UE; Whether the quality of judging the up signaling of being received that is scheduled satisfies the trigger condition that repeats to send the scheduling configuration signal, if PDCCH is passed through in the base station; In same subframe, repeat to send M scheduling configuration signal; Perhaps, the base station is in continuous N sub-frame, and each subframe is sent a scheduling configuration signal.
10. method according to claim 8 is characterized in that, saidly satisfies the trigger condition repeat to send the scheduling configuration signal and is:
The intensity of the up signaling that is scheduled is lower than the signal strength threshold that is provided with in advance;
The error rate of the up signaling that is scheduled surpasses the error rate threshold value that is provided with in advance; Perhaps,
The number of times that the base station repeats to send same scheduling configuration signal is above the maximum times that is provided with in advance.
11. a method of carrying out scheduling aperiodic through physical downlink control channel PDCCH is characterized in that the processing of base station side comprises:
The base station receives the up signaling from UE; Whether the quality of judging the up signaling received satisfies the trigger condition that repeats to send the scheduling configuration signal that is used to dispatch said up signaling, if physical downlink control channel PDCCH is passed through in the base station; In same subframe, repeat to send M scheduling configuration signal; Perhaps, the base station is in continuous N sub-frame, and each subframe is sent a scheduling configuration signal.
12. a system that carries out scheduling aperiodic through physical downlink control channel PDCCH, this system comprises base station and user equipment (UE), it is characterized in that,
Said base station is used for issuing the scheduling configuration signal through PDCCH to user equipment (UE), the delivery time of the up signaling that regulation is scheduled in the said scheduling configuration signal; The base station also is used for detecting whether receive the up signaling that is scheduled from UE at the delivery time of the said up signaling that is scheduled, if then construct new scheduling configuration signal, and be handed down to UE; Otherwise the base station is sent identical scheduling configuration signal through PDCCH to UE once more;
Said UE is used for after receiving the scheduling configuration signal, sends the said up signaling that is scheduled at the delivery time of the up signaling that is scheduled of said scheduling configuration signal regulation.
13. system according to claim 12; It is characterized in that; Said base station is further used for; Through PDCCH to UE issue scheduling configuration signal and base station through PDCCH when UE sends identical scheduling configuration signal once more, start a timer, this length of timer is more than or equal to the delivery time of the up signaling that is scheduled and the time difference in the moment of sending the scheduling configuration signal;
Said base station detects whether receive that the up signaling that is scheduled from UE is at the delivery time of the said up signaling that is scheduled: whether receive the up signaling that is scheduled from UE before the said timer expiry of base station judges.
14. system according to claim 12 is characterized in that, said scheduling configuration signal is that measuring-signal sends indication signaling, channel quality indication dynamic-configuration signaling or carrier aggregation dynamically active configuration signal.
15., it is characterized in that said base station is further used for according to claim 12,13 or 14 described systems:
Reception is from the up signaling that is scheduled of UE; Whether the quality of judging the up signaling of being received that is scheduled satisfies the trigger condition that repeats to send the scheduling configuration signal, if, through PDCCH; In same subframe, repeat to send M scheduling configuration signal; Perhaps, in continuous N sub-frame, each subframe is sent a scheduling configuration signal.
16. system according to claim 15 is characterized in that, saidly satisfies the trigger condition repeat to send the scheduling configuration signal and is:
The intensity of the up signaling that is scheduled is lower than the signal strength threshold that is provided with in advance;
The error rate of the up signaling that is scheduled surpasses the error rate threshold value that is provided with in advance; Perhaps,
The number of times that the base station repeats to send same scheduling configuration signal is above the maximum times that is provided with in advance.
17. a system that carries out scheduling aperiodic through physical downlink control channel PDCCH, this system comprises base station and user equipment (UE), it is characterized in that,
Said base station is used for issuing the scheduling configuration signal through PDCCH to UE, the delivery time of the up signaling that regulation is scheduled in the said scheduling configuration signal; And be used to judge in the next subframe that issues the scheduling configuration signal whether receive affirmation message ACK from UE, if then construct new scheduling configuration signal and be handed down to; Otherwise identical scheduling configuration signal is sent once more to UE in the base station;
Said UE is used for: after receiving the order of scheduling configuration signal, send acknowledge message ACK to the base station immediately in next subframe, the delivery time in the up signaling that is scheduled of dispatching the configuration signal regulation sends the said up signaling that is scheduled then.
18. system according to claim 17 is characterized in that, said base station is further used for:
Reception is from the up signaling that is scheduled of UE; Whether the quality of judging the up signaling of being received that is scheduled satisfies the trigger condition that repeats to send the scheduling configuration signal, if PDCCH is passed through in the base station; In same subframe, repeat to send M scheduling configuration signal; Perhaps, the base station is in continuous N sub-frame, and each subframe is sent a scheduling configuration signal.
19. a system that carries out scheduling aperiodic through physical downlink control channel PDCCH, this system comprises base station and user equipment (UE), it is characterized in that,
Said base station is used for: receive the up signaling from UE; Whether the quality of judging the up signaling received satisfies the trigger condition that repeats to send the scheduling configuration signal that is used to dispatch said up signaling; If, in same subframe, repeat to send M scheduling configuration signal through physical downlink control channel PDCCH; The base station is in continuous N sub-frame, and each subframe is sent a scheduling configuration signal;
Said UE is used for behind the scheduling configuration signal of receiving from the base station, sends the up signaling that is scheduled to the base station.
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