CN102468948B - 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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- 230000000737 periodic effect Effects 0.000 title abstract 3
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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 by 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 receiving, Channel State Information), and carry out dynamic dispatching, power control, the operations such as resource distribution according to measuring the CSI information obtaining.
In the further evolution scheme of LTE system, SRS can carry out transmission aperiodic by the dynamic dispatching of control channel.
In wireless communication system, due to the fading characteristic of wireless channel, transfer of data is insecure, therefore, has dispatched SRS dispatch command transmission aperiodic by control channel.Because control channel wireless transmission exists certain undetected probability of false detection (1% left and right, detailed content is referring to agreement document " 36.101-930 ", the undetected probability of false detection of for example Physical Downlink Control Channel (PDCCH) is 1%), simultaneously because control channel does not exist retransmission mechanism, can cause SRS dispatch loss aperiodic, and further cause UE cannot correctly send SRS, thereby affect service feature.
Summary of the invention
In view of this, the invention provides the method and system that carries out scheduling aperiodic by physical downlink control channel PDCCH, can improve the service feature decline problem of bringing due to the undetected flase drop of control channel scheduling SRS.
The embodiment of the present invention has proposed a kind of method of carrying out scheduling aperiodic by PDCCH, and the processing procedure of base station comprises the steps:
A1, base station issue scheduling configuration signal by PDCCH to user equipment (UE), the delivery time of the up signaling that in described scheduling configuration signal, regulation is scheduled;
The up signaling being scheduled of whether receiving from UE is detected at the delivery time of the described up signaling being scheduled in B1, base station, if so, constructs new scheduling configuration signal, and returns to steps A 1; Otherwise base station sends identical scheduling configuration signal by PDCCH again to UE, and repeated execution of steps B1.
Preferably, when described base station is issued scheduling configuration signal and base station and again sends identical scheduling configuration signal by PDCCH to UE to UE by PDCCH, start a timer, the duration of this timer is more than or equal to the delivery time and the time difference of sending the moment of dispatching configuration signal of the up signaling being scheduled;
Whether receive from the up signaling being scheduled of UE in the delivery time detection of the described up signaling being scheduled described base station: before base station judges described timer expiry, whether receive the up signaling being scheduled from UE.
Preferably, described scheduling configuration signal is that measuring-signal sends indication signaling, channel quality instruction dynamic-configuration signaling or carrier aggregation dynamically active configuration signal.
Preferably, the processing of base station side further comprises:
Base station receives the up signaling being scheduled from UE, whether the quality of the up signaling being scheduled that judgement is received meets the trigger condition that repeats to send scheduling configuration signal, if, PDCCH is passed through in base station, in same subframe, repeat to send M scheduling configuration signal, or base station is in a continuous N subframe, each subframe sends a scheduling configuration signal.
Preferably, the described satisfied trigger condition that repeats transmission scheduling configuration signal is:
The intensity of the up signaling being scheduled is lower than the signal strength threshold setting in advance;
The error rate of the up signaling being scheduled exceedes the error rate threshold value setting in advance; Or,
The number of times that same scheduling configuration signal is repeated to send in base station exceedes the maximum times setting in advance.
Preferably, described M is 2 or 4.
Preferably, described N is 2,3 or 4.
The embodiment of the present invention has also proposed another kind of method of carrying out scheduling aperiodic by PDCCH, and the processing procedure of base station side comprises:
A2, base station issue scheduling configuration signal by PDCCH to user equipment (UE), the delivery time of the up signaling that in described scheduling configuration signal, regulation is scheduled;
B2, base station judge in the next subframe that issues scheduling configuration signal whether receive the acknowledge message ACK from UE, if so, construct new scheduling configuration signal and return to steps A 2; Otherwise base station sends identical scheduling configuration signal again to UE, and repeated execution of steps B2;
The processing procedure of user equipment (UE) side comprises: UE is receiving after the order of scheduling configuration signal, send immediately acknowledge message ACK to base station in next subframe, the up signaling being scheduled described in the delivery time of the up signaling being scheduled then specifying at scheduling configuration signal sends.
Preferably, the processing of base station side further comprises:
Base station receives the up signaling being scheduled from UE, whether the quality of the up signaling being scheduled that judgement is received meets the trigger condition that repeats to send scheduling configuration signal, if, PDCCH is passed through in base station, in same subframe, repeat to send M scheduling configuration signal, or base station is in a continuous N subframe, each subframe sends a scheduling configuration signal.
Preferably, the described satisfied trigger condition that repeats transmission scheduling configuration signal is:
The intensity of the up signaling being scheduled is lower than the signal strength threshold setting in advance;
The error rate of the up signaling being scheduled exceedes the error rate threshold value setting in advance; Or,
The number of times that same scheduling configuration signal is repeated to send in base station exceedes the maximum times setting in advance.
The embodiment of the present invention proposes another carries out scheduling aperiodic method by road PDCCH, the processing of base station side comprises:
Base station receives the up signaling from UE, whether the quality of the up signaling that judgement is received meets the trigger condition that repeats to send the scheduling configuration signal for dispatching described up signaling, if, physical downlink control channel PDCCH is passed through in base station, in same subframe, repeat to send M scheduling configuration signal, or base station is in a continuous N subframe, each subframe sends a scheduling configuration signal.
The embodiment of the present invention also proposes a kind of system of carrying out scheduling aperiodic by PDCCH, and this system comprises base station and user equipment (UE), it is characterized in that,
Described base station, for issuing scheduling configuration signal by PDCCH to user equipment (UE), specifies the delivery time of the up signaling being scheduled in described scheduling configuration signal; The up signaling being scheduled of whether receiving from UE is also detected for the delivery time in the described up signaling being scheduled in base station, if so, constructs new scheduling configuration signal, and is handed down to UE; Otherwise base station sends identical scheduling configuration signal by PDCCH again to UE;
Described UE is used for receiving after scheduling configuration signal, the up signaling being scheduled described in the delivery time of the up signaling being scheduled specifying at described scheduling configuration signal sends.
Preferably, described base station is further used for, in issuing scheduling configuration signal and base station by PDCCH to UE and again sending identical scheduling configuration signal by PDCCH to UE, start a timer, the duration of this timer is more than or equal to the delivery time and the time difference of sending the moment of dispatching configuration signal of the up signaling being scheduled;
Whether receive from the up signaling being scheduled of UE in the delivery time detection of the described up signaling being scheduled described base station: before base station judges described timer expiry, whether receive the up signaling being scheduled from UE.
Preferably, described scheduling configuration signal is that measuring-signal sends indication signaling, channel quality instruction dynamic-configuration signaling or carrier aggregation dynamically active configuration signal.
Preferably, described base station is further used for:
Receive the up signaling being scheduled from UE, whether the quality of the up signaling being scheduled that judgement is received meets the trigger condition that repeats to send scheduling configuration signal, if, pass through PDCCH, in same subframe, repeat to send M scheduling configuration signal, or in a continuous N subframe, each subframe sends a scheduling configuration signal.
Preferably, the described satisfied trigger condition that repeats transmission scheduling configuration signal is:
The intensity of the up signaling being scheduled is lower than the signal strength threshold setting in advance;
The error rate of the up signaling being scheduled exceedes the error rate threshold value setting in advance; Or,
The number of times that same scheduling configuration signal is repeated to send in base station exceedes the maximum times setting in advance.
The embodiment of the present invention proposes another kind of system of carrying out scheduling aperiodic by PDCCH, and this system comprises base station and UE, it is characterized in that,
Described base station, for issuing scheduling configuration signal by PDCCH to UE, specifies the delivery time of the up signaling being scheduled in described scheduling configuration signal; And for judging in the next subframe that issues scheduling configuration signal whether receive the acknowledge message ACK from UE, if so, construct new scheduling configuration signal and be handed down to; Otherwise base station sends identical scheduling configuration signal again to UE;
Described UE is used for: receiving after the order of scheduling configuration signal, send immediately acknowledge message ACK in next subframe to base station, the up signaling being scheduled described in the delivery time of the up signaling being scheduled then specifying at scheduling configuration signal sends.
Preferably, described base station is further used for:
Receive the up signaling being scheduled from UE, whether the quality of the up signaling being scheduled that judgement is received meets the trigger condition that repeats to send scheduling configuration signal, if, PDCCH is passed through in base station, in same subframe, repeat to send M scheduling configuration signal, or base station is in a continuous N subframe, each subframe sends a scheduling configuration signal.
The embodiment of the present invention proposes another carries out scheduling aperiodic system by physical downlink control channel PDCCH, this system comprises base station and UE, described base station is used for: receive the up signaling from UE, whether the quality of the up signaling that judgement is received meets the trigger condition that repeats to send the scheduling configuration signal for dispatching described up signaling, if, pass through physical downlink control channel PDCCH, in same subframe, repeat to send M scheduling configuration signal, base station is in a continuous N subframe, and each subframe sends a scheduling configuration signal;
Described UE, for after the scheduling configuration signal of receiving from base station, sends the up signaling being scheduled to base station.
As can be seen from the above technical solutions, in the process of carrying out scheduling aperiodic by PDCCH, increase the retransmission mechanism of scheduling configuration signal, under certain condition, repeat to send identical scheduling configuration signal meeting, the present invention program is not only applicable to dispatch SRS aperiodic, for the up signaling of dispatching other types by PDCCH aperiodic, such as 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 impact of the decline of wireless channel, improves because the professional ability that the undetected flase drop of scheduling configuration signal is caused declines.
Brief description of the drawings
Fig. 1 is the handling process schematic diagram of base station in the embodiment of the present invention one;
Fig. 2 is the handling process schematic diagram of base station in the embodiment of the present invention two;
Fig. 3 is the handling process schematic diagram of base station in the embodiment of the present invention three.
Embodiment
Embodiment of the present invention scheme is by aperiodic SRS signal dispatching process, increases SRS and send the retransmission mechanism of indication signaling, the impact with the decline that resists wireless channel on acyclic SRS signal dispatching. improve the reliability of scheduling SRS aperiodic.By multiple embodiment, the present invention program is specifically described below.
Embodiment mono-: base station eNB realizes the re-transmission of SRS transmission indication signaling by automatic error detection technology.
In embodiment mono-, UE is receiving after SRS transmission indication signaling, and the delivery time of the SRS specifying at SRS transmission indication signaling sends SRS.In embodiment mono-, the handling process of base station as shown in Figure 1, comprises the steps:
Step 101: base station issues SRS to UE and sends indication signaling, and described SRS sends the delivery time that specifies SRS in indication signaling.
Step 102: the SRS whether receiving from UE is detected at the delivery time of described SRS in base station, if so, performs step 104, otherwise execution step 103.
Step 103: base station again sends identical SRS to UE and sends indication signaling, and return to execution step 102.
Step 104: construct new SRS and send indication signaling, and return to step 101.
The scheme of embodiment mono-can also adopt following execution mode: base station, in sending SRS transmission indication signaling, starts a timer, and the duration of this timer is more than or equal to the delivery time of SRS and sends SRS the time difference of sending the moment of indication signaling.Whether base station receives the SRS from UE before judging described timer expiry, if so, process ends, otherwise base station again sends described SRS to UE and sends indication signaling.
The shortcoming of embodiment mono-is that time delay is larger.
Embodiment bis-: UE realizes the re-transmission of SRS transmission indication signaling by automatic repeat request technology.
In embodiment bis-, UE, receiving after SRS transmission indication signaling, sends acknowledge message ACK immediately in next subframe to base station, and the delivery time of the SRS then specifying at SRS transmission indication signaling sends SRS.
In embodiment bis-, the handling process of base station as shown in Figure 2, comprises the steps:
Step 201: base station issues SRS to UE and sends indication signaling.Described SRS sends the delivery time that specifies SRS in indication signaling.
Step 202: base station judges in the next subframe that issues SRS transmission indicator whether receive
From the acknowledge message ACK of UE, if so, perform step 204; Otherwise execution step 203.
Step 203: base station again sends identical SRS to UE and sends indication signaling, and return to execution step 202.
Step 204: construct new SRS and send indication signaling and return to step 201.
With respect to embodiment mono-, the time delay of embodiment bis-is dwindled greatly, sends signaling but embodiment bis-need to increase acknowledge message, increases empty overhead.
Embodiment tri-: base station eNB realizes the re-transmission of SRS transmission indication signaling by redundancy transmission technology.
The basic thought of embodiment tri-is that, in the time that base station eNB is judged UE signal lower than certain thresholding, the SRS that sends multiple these UE at same PDCCH channel sends indication signaling; Or the SRS that sends this UE in the PDCCH of continuous multiple descending sub frames sends indication signaling.
The handling process of embodiment tri-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 mono-or embodiment bis-in base station.
Step 302: base station receives the SRS signal from UE, whether the SRS signal quality that judgement is received meets the trigger condition that repeats to send SRS transmission index signal, if so, performs step 303, otherwise, return to step 301.
Described repeat to send trigger condition that SRS sends index signal can be as follows any:
The intensity of SRS signal, whether lower than the signal strength threshold setting in advance, if so, meets described trigger condition;
Whether the error rate of SRS signal exceedes the error rate threshold value setting in advance, and if so, meets described trigger condition; Or,
Base station is according to the mode described in embodiment mono-or embodiment bis-, repeats to send the number of times that same SRS sends indication signaling and exceedes the maximum times setting in advance, for meeting described trigger condition.
Step 303: base station, by PDCCH channel, is repeated to send M SRS and sent indication signaling in same subframe, or base station is in a continuous N subframe, and each subframe sends a SRS and sends indication signaling.Preferably, base station configures one and repeats to send instruction before each PDCCH that repeats to send SRS transmission indication signaling, sends the transmission that repeats of indication signaling to notify UE will carry out SRS; Or, notify UE will carry out the transmission that repeats of SRS transmission indication signaling by radio resource control signaling (RRC) or other modes.
Preferably, described M is 2 or 4.Described N is 2,3 or 4.
The above embodiment utilizes PDCCH to dispatch SRS aperiodic, and the inventive concept that embodiment scheme embodies is equally applicable to dispatch aperiodic by PDCCH the up signaling of other types, such as aperiodic channel quality indicator (CQI) scheduling and dynamic carrier polymerization (CC) activate scheduling etc.
The processing procedure of the base station of embodiment mono-can be expressed as and comprise the steps:
A1, base station issue scheduling configuration signal by PDCCH to user equipment (UE), the delivery time of the up signaling that in described scheduling configuration signal, regulation is scheduled;
The up signaling being scheduled of whether receiving from UE is detected at the delivery time of the described up signaling being scheduled in B1, base station, if so, constructs new scheduling configuration signal, and returns to steps A 1; Otherwise base station sends identical scheduling configuration signal by PDCCH again to UE, and repeated execution of steps B1.
Wherein, scheduling configuration signal can send indication signaling, channel quality instruction 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 dynamic carrier polymerization aperiodic and activate and dispatch.
The embodiment of the present invention four provides a kind of system of carrying out scheduling aperiodic by PDCCH, and this system comprises base station and UE,
Described base station, for issuing scheduling configuration signal by PDCCH to user equipment (UE), specifies the delivery time of the up signaling being scheduled in described scheduling configuration signal; The up signaling being scheduled of whether receiving from UE is also detected for the delivery time in the described up signaling being scheduled in base station, if so, constructs new scheduling configuration signal, and is handed down to UE; Otherwise base station sends identical scheduling configuration signal by PDCCH again to UE;
Described UE is used for receiving after scheduling configuration signal, the up signaling being scheduled described in the delivery time of the up signaling being scheduled specifying at described scheduling configuration signal sends.
Preferably, described base station is further used for, in issuing scheduling configuration signal and base station by PDCCH to UE and again sending identical scheduling configuration signal by PDCCH to UE, start a timer, the duration of this timer is more than or equal to the delivery time and the time difference of sending the moment of dispatching configuration signal of the up signaling being scheduled;
Whether receive from the up signaling being scheduled of UE in the delivery time detection of the described up signaling being scheduled described base station: before base station judges described timer expiry, whether receive the up signaling being scheduled from UE.
Preferably, described scheduling configuration signal is that measuring-signal sends indication signaling, channel quality instruction dynamic-configuration signaling or carrier aggregation dynamically active configuration signal.
Preferably, described base station is further used for:
Receive the up signaling being scheduled from UE, whether the quality of the up signaling being scheduled that judgement is received meets the trigger condition that repeats to send scheduling configuration signal, if, pass through PDCCH, in same subframe, repeat to send M scheduling configuration signal, or in a continuous N subframe, each subframe sends a scheduling configuration signal.
Preferably, the described satisfied trigger condition that repeats transmission scheduling configuration signal is:
The intensity of the up signaling being scheduled is lower than the signal strength threshold setting in advance;
The error rate of the up signaling being scheduled exceedes the error rate threshold value setting in advance; Or,
The number of times that same scheduling configuration signal is repeated to send in base station exceedes the maximum times setting in advance.
The embodiment of the present invention five provides a kind of system of carrying out scheduling aperiodic by PDCCH, and this system comprises base station and UE, it is characterized in that,
Described base station, for issuing scheduling configuration signal by PDCCH to UE, specifies the delivery time of the up signaling being scheduled in described scheduling configuration signal; And for judging in the next subframe that issues scheduling configuration signal whether receive the acknowledge message ACK from UE, if so, construct new scheduling configuration signal and be handed down to; Otherwise base station sends identical scheduling configuration signal again to UE;
Described UE is used for: receiving after the order of scheduling configuration signal, send immediately acknowledge message ACK in next subframe to base station, the up signaling being scheduled described in the delivery time of the up signaling being scheduled then specifying at scheduling configuration signal sends.
Preferably, described base station is further used for:
Receive the up signaling being scheduled from UE, whether the quality of the up signaling being scheduled that judgement is received meets the trigger condition that repeats to send scheduling configuration signal, if, PDCCH is passed through in base station, in same subframe, repeat to send M scheduling configuration signal, or base station is in a continuous N subframe, each subframe sends a scheduling configuration signal.
The embodiment of the present invention six provides a kind of system of carrying out scheduling aperiodic by PDCCH, this system comprises base station and user equipment (UE), described base station is used for: receive the up signaling from UE, whether the quality of the up signaling that judgement is received meets the trigger condition that repeats to send the scheduling configuration signal for dispatching described up signaling, if, pass through physical downlink control channel PDCCH, in same subframe, repeat to send M scheduling configuration signal, base station is in a continuous N subframe, and each subframe sends a scheduling configuration signal;
Described UE, for after the scheduling configuration signal of receiving from base station, sends the up signaling being scheduled to base station.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of making, be equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.
Claims (12)
1. a method of carrying out scheduling aperiodic by physical downlink control channel PDCCH, is characterized in that, the processing procedure of base station comprises the steps:
A1, base station issue scheduling configuration signal by PDCCH to user equipment (UE), the delivery time of the up signaling that in described scheduling configuration signal, regulation is scheduled;
The up signaling being scheduled of whether receiving from UE is detected at the delivery time of the described up signaling being scheduled in B1, base station, if so, performs step C1; Otherwise base station sends identical scheduling configuration signal by PDCCH again to UE, and repeated execution of steps B1;
C1, base station judge whether the quality of the up signaling being scheduled of receiving meets the trigger condition that repeats to send scheduling configuration signal, if, PDCCH is passed through in base station, in same subframe, repeat to send M scheduling configuration signal, or, base station is in a continuous N subframe, and each subframe sends a scheduling configuration signal; Otherwise, construct new scheduling configuration signal, and return to steps A 1;
The described satisfied trigger condition that repeats transmission scheduling configuration signal is:
The intensity of the up signaling being scheduled is lower than the signal strength threshold setting in advance;
The error rate of the up signaling being scheduled exceedes the error rate threshold value setting in advance; Or,
The number of times that same scheduling configuration signal is repeated to send in base station exceedes the maximum times setting in advance.
2. method according to claim 1, it is characterized in that, when described base station is issued scheduling configuration signal and base station and again sends identical scheduling configuration signal by PDCCH to UE to UE by PDCCH, start a timer, the duration of this timer is more than or equal to the delivery time and the time difference of sending the moment of dispatching configuration signal of the up signaling being scheduled;
Whether receive from the up signaling being scheduled of UE in the delivery time detection of the described up signaling being scheduled described base station: before base station judges described timer expiry, whether receive the up signaling being scheduled from UE.
3. method according to claim 1, is characterized in that, described scheduling configuration signal is that measuring-signal sends indication signaling, channel quality instruction dynamic-configuration signaling or carrier aggregation dynamically active configuration signal.
4. method according to claim 1, is characterized in that, described M is 2 or 4.
5. method according to claim 1, is characterized in that, described N is 2,3 or 4.
6. a method of carrying out scheduling aperiodic by physical downlink control channel PDCCH, is characterized in that, the processing procedure of base station side comprises:
A2, base station issue scheduling configuration signal by PDCCH to user equipment (UE), the delivery time of the up signaling that in described scheduling configuration signal, regulation is scheduled;
B2, base station judge in the next subframe that issues scheduling configuration signal whether receive the acknowledge message ACK from UE, if so, perform step C2; Otherwise base station sends identical scheduling configuration signal again to UE, and repeated execution of steps B2;
The processing procedure of user equipment (UE) side comprises: UE is receiving after scheduling configuration signal, send immediately acknowledge message ACK to base station in next subframe, the up signaling being scheduled described in the delivery time of the up signaling being scheduled then specifying at scheduling configuration signal sends;
C2, base station receive the up signaling being scheduled from UE, whether the quality of the up signaling being scheduled that judgement is received meets the trigger condition that repeats to send scheduling configuration signal, if, PDCCH is passed through in base station, in same subframe, repeat to send M scheduling configuration signal, or base station is in a continuous N subframe, each subframe sends a scheduling configuration signal; Otherwise, construct new scheduling configuration signal, and return to steps A 2;
The described satisfied trigger condition that repeats transmission scheduling configuration signal is:
The intensity of the up signaling being scheduled is lower than the signal strength threshold setting in advance;
The error rate of the up signaling being scheduled exceedes the error rate threshold value setting in advance; Or,
The number of times that same scheduling configuration signal is repeated to send in base station exceedes the maximum times setting in advance.
7. a method of carrying out scheduling aperiodic by physical downlink control channel PDCCH, is characterized in that, the processing of base station side comprises:
Base station receives the up signaling from UE, whether the quality of the up signaling that judgement is received meets the trigger condition that repeats to send the scheduling configuration signal for dispatching described up signaling, if, physical downlink control channel PDCCH is passed through in base station, in same subframe, repeat to send M scheduling configuration signal, or base station is in a continuous N subframe, each subframe sends a scheduling configuration signal;
The described satisfied trigger condition that repeats transmission scheduling configuration signal is:
The intensity of the up signaling being scheduled is lower than the signal strength threshold setting in advance;
The error rate of the up signaling being scheduled exceedes the error rate threshold value setting in advance; Or,
The number of times that same scheduling configuration signal is repeated to send in base station exceedes the maximum times setting in advance.
8. a system of carrying out scheduling aperiodic by physical downlink control channel PDCCH, this system comprises base station and user equipment (UE), it is characterized in that,
Described base station, for issuing scheduling configuration signal by PDCCH to user equipment (UE), specifies the delivery time of the up signaling being scheduled in described scheduling configuration signal; The up signaling being scheduled of whether receiving from UE is also detected for the delivery time in the described up signaling being scheduled in base station, if, whether the quality of the up signaling being scheduled that judgement is received meets the trigger condition that repeats to send scheduling configuration signal, if, by PDCCH, in same subframe, repeat to send M scheduling configuration signal, or, in a continuous N subframe, each subframe sends a scheduling configuration signal; Otherwise construct new scheduling configuration signal, and be handed down to UE; If do not receive the up signaling being scheduled from UE, base station sends identical scheduling configuration signal by PDCCH again to UE;
Described UE is used for receiving after scheduling configuration signal, the up signaling being scheduled described in the delivery time of the up signaling being scheduled specifying at described scheduling configuration signal sends;
The described satisfied trigger condition that repeats transmission scheduling configuration signal is:
The intensity of the up signaling being scheduled is lower than the signal strength threshold setting in advance;
The error rate of the up signaling being scheduled exceedes the error rate threshold value setting in advance; Or,
The number of times that same scheduling configuration signal is repeated to send in base station exceedes the maximum times setting in advance.
9. system according to claim 8, it is characterized in that, described base station is further used for, in issuing scheduling configuration signal and base station by PDCCH to UE and again sending identical scheduling configuration signal by PDCCH to UE, start a timer, the duration of this timer is more than or equal to the delivery time and the time difference of sending the moment of dispatching configuration signal of the up signaling being scheduled;
Whether receive from the up signaling being scheduled of UE in the delivery time detection of the described up signaling being scheduled described base station: before base station judges described timer expiry, whether receive the up signaling being scheduled from UE.
10. system according to claim 8, is characterized in that, described scheduling configuration signal is that measuring-signal sends indication signaling, channel quality instruction dynamic-configuration signaling or carrier aggregation dynamically active configuration signal.
11. 1 kinds are carried out the system of scheduling aperiodic by physical downlink control channel PDCCH, this system comprises base station and user equipment (UE), it is characterized in that,
Described base station, for issuing scheduling configuration signal by PDCCH to UE, specifies the delivery time of the up signaling being scheduled in described scheduling configuration signal; And for judging in the next subframe that issues scheduling configuration signal whether receive the acknowledge message ACK from UE, if, whether the quality of the up signaling being scheduled that judgement is received meets the trigger condition that repeats to send scheduling configuration signal, if, M scheduling configuration signal, by PDCCH, repeated to send in base station in same subframe, or, base station is in a continuous N subframe, and each subframe sends a scheduling configuration signal; Otherwise construct new scheduling configuration signal and be handed down to UE; If do not receive the acknowledge message ACK from UE, base station sends identical scheduling configuration signal again to UE;
Described UE is used for: receiving after scheduling configuration signal, sending immediately acknowledge message ACK in next subframe to base station, the up signaling being scheduled described in the delivery time of the up signaling being scheduled then specifying at scheduling configuration signal sends;
The described satisfied trigger condition that repeats transmission scheduling configuration signal is:
The intensity of the up signaling being scheduled is lower than the signal strength threshold setting in advance;
The error rate of the up signaling being scheduled exceedes the error rate threshold value setting in advance; Or,
The number of times that same scheduling configuration signal is repeated to send in base station exceedes the maximum times setting in advance.
12. 1 kinds are carried out the system of scheduling aperiodic by physical downlink control channel PDCCH, this system comprises base station and user equipment (UE), it is characterized in that,
Described base station is used for: receive the up signaling from UE, whether the quality of the up signaling that judgement is received meets the trigger condition that repeats to send the scheduling configuration signal for dispatching described up signaling, if, pass through physical downlink control channel PDCCH, in same subframe, repeat to send M scheduling configuration signal, base station is in a continuous N subframe, and each subframe sends a scheduling configuration signal;
Described UE, for after the scheduling configuration signal of receiving from base station, sends the up signaling being scheduled to base station;
The described satisfied trigger condition that repeats transmission scheduling configuration signal is:
The intensity of the up signaling being scheduled is lower than the signal strength threshold setting in advance;
The error rate of the up signaling being scheduled exceedes the error rate threshold value setting in advance; Or,
The number of times that same scheduling configuration signal is repeated to send in base station exceedes the maximum times setting in advance.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010548311.3A CN102468948B (en) | 2010-11-17 | 2010-11-17 | Method and system for carrying out non-periodic scheduling through physical downlink control channel (PDCCH) |
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| CN201010548311.3A CN102468948B (en) | 2010-11-17 | 2010-11-17 | Method and system for carrying out non-periodic scheduling through physical downlink control channel (PDCCH) |
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| Publication Number | Publication Date |
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| CN103825686A (en) * | 2012-11-16 | 2014-05-28 | 联芯科技有限公司 | Device and method for configuring LTE terminal uplink retransmission scheduling |
| CN104811409B (en) * | 2014-01-26 | 2020-02-07 | 夏普株式会社 | Method, base station and user equipment for repeatedly transmitting physical downlink control channel |
| CN106255209B (en) * | 2016-02-04 | 2019-10-01 | 北京智谷睿拓技术服务有限公司 | Enhance method, user equipment, base station and the system of Reliability of Wireless Communication |
| CN107241754B (en) * | 2017-06-08 | 2021-03-30 | 上海无线通信研究中心 | Adaptive uplink reference signal transmission method and corresponding functional unit |
| CN110380832A (en) * | 2018-04-12 | 2019-10-25 | 普天信息技术有限公司 | Down control channel PDCCH method for sending information, prediction technique and its device |
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| CN101572917A (en) * | 2008-04-28 | 2009-11-04 | 华为技术有限公司 | Method, device and system for obligating process number |
| CN101616442A (en) * | 2008-06-23 | 2009-12-30 | 华为技术有限公司 | Method for transmitting uplink data, terminal installation |
| CN101795145A (en) * | 2010-02-08 | 2010-08-04 | 中兴通讯股份有限公司 | Sending method and system for measuring reference signals |
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| CN101572917A (en) * | 2008-04-28 | 2009-11-04 | 华为技术有限公司 | Method, device and system for obligating process number |
| CN101616442A (en) * | 2008-06-23 | 2009-12-30 | 华为技术有限公司 | Method for transmitting uplink data, terminal installation |
| CN101795145A (en) * | 2010-02-08 | 2010-08-04 | 中兴通讯股份有限公司 | Sending method and system for measuring reference signals |
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