CN109802768B - Feedback method and device for confirmation information of mobile terminal or base station - Google Patents
Feedback method and device for confirmation information of mobile terminal or base station Download PDFInfo
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Abstract
The invention provides a feedback method and a device for acknowledgement information of a mobile terminal and a feedback method and a device for acknowledgement information of a base station, wherein the feedback method for the acknowledgement information of the mobile terminal comprises the following steps: receiving and demodulating occupation indication information from a base station to obtain position information of the occupation indication relative to the ultrahigh-reliability ultralow-delay communication data; when the hybrid automatic repeat request feedback time arrives and data demodulation is not finished, transmitting occupation indication negative response information to a base station; confirming an uplink subframe for hybrid automatic repeat request acknowledgement information feedback according to the position information of the occupation indication; and after the data demodulation is finished, feeding back hybrid automatic repeat request confirmation information to the base station on the confirmed uplink subframe. When the occupation indication is utilized to improve the success rate of data demodulation, unnecessary data retransmission is avoided, and system resources are saved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for feeding back acknowledgment information for a mobile terminal, and a method and an apparatus for feeding back acknowledgment information for a base station.
Background
Currently, development work of a 5 th generation mobile communication system (5G) is actively underway. According to future application requirements, the 5G system needs to support multiple service scenarios, wherein communication scenarios with Low time delay and high reliability (URLLC), such as unmanned driving, industrial automation, and the like, are receiving wide attention. Generally, URLLC data has very high burstiness and high requirement on delay, so that this type of data has very high resource scheduling priority. The solution proposed at present for the transmission of URLLC data is: when the URLLC data arrives, the 5G base station (gNB) immediately schedules the URLLC data, as shown in fig. 1, that is, performs puncturing transmission in an enhanced Mobile Broadband (eMBB) data block in which resource configuration has been completed, so as to achieve the fastest data transfer, and further meet the requirement of the URLLC data on delay.
But the punctured transmitted URLLC data will in some cases affect the correct demodulation of the eMBB data at the User terminal (UE). To improve this problem, researchers have proposed that eMBB UEs may be provided with information related to URLLC data in received data, such as the location of URLLC data, by setting a Preemption Indication (PI), and UEs may remove URLLC data according to the information provided by the PI to improve the success rate of data demodulation. Obviously, PI always appears with the appearance of URLLC data, and the corresponding PI is configured and transmitted after the base station schedules a burst of URLLC data. Therefore, PI can only appear after URLLC data, and for the convenience of system design and combining with PI transmission features, PI will be placed in a certain PDCCH after the frame where URLLC data is located, as shown in fig. 2a, PI is placed in the 1 st PDCCH after the frame where URLLC data is located, as shown in fig. 2b, and PI is placed in the ith PDCCH after the frame where URLLC data is located. As shown in fig. 3, the eMBB UE starts data demodulation after receiving the eMBB data, and if the PI information is received during the demodulation process and the PI indicates that its own data is punctured by the URLLC data, the UE restarts data demodulation using the PI information. Restarting data demodulation will prolong the time for the eMBB UE to generate HARQ acknowledgement information (ACK/NACK), which may result in that the UE cannot complete data demodulation at the HARQ feedback time point and cannot feed back the final acknowledgement information on the predetermined subframe when the processing performance of the UE is poor. The UE under the existing protocol can only send a Negative Acknowledgement (NACK) to the base station on a predetermined subframe without completing demodulation, thereby waiting for the base station to retransmit the data.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, an aspect of the present invention is to provide a feedback method of acknowledgement information for a mobile terminal.
Another aspect of the present invention is to provide an apparatus for feeding back acknowledgement information, which is used for a mobile terminal.
Still another aspect of the present invention is to provide a feedback method of acknowledgement information for a base station.
Still another aspect of the present invention is to provide an apparatus for feeding back acknowledgement information, which is used for a base station.
In view of the above, according to an aspect of the present invention, a method for feeding back acknowledgement information is provided, where the method for feeding back acknowledgement information is used for a mobile terminal, and includes: receiving and demodulating occupation indication information from a base station to obtain position information of the occupation indication relative to the ultrahigh-reliability ultralow-delay communication data; when the hybrid automatic repeat request feedback time arrives and data demodulation is not finished, transmitting occupation indication negative response information to a base station; confirming an uplink subframe for hybrid automatic repeat request acknowledgement information feedback according to the position information of the occupation indication; and after the data demodulation is finished, feeding back hybrid automatic repeat request confirmation information to the base station on the confirmed uplink subframe.
The mobile terminal demodulates the received occupation indication to obtain the position information of the occupation indication relative to the ultrahigh-reliability ultralow-delay communication data, namely, to determine which subframe the occupation indication is positioned on after the subframe carrying the ultrahigh-reliability ultralow-delay communication data, and when the hybrid automatic repeat request feedback time point arrives but data demodulation is not completed, the mobile terminal feeds back P-NACK information (occupation indication negative response information) to the base station to inform the base station that the demodulation of the data is not completed at the current feedback time point, but does not need the base station to repeat the data, and the occupation indication is utilized to improve the success rate of the data demodulation, and avoid unnecessary data retransmission, thereby saving system resources. And determining an uplink subframe for hybrid automatic repeat request acknowledgement information feedback according to the position information of the occupation indication, further sending hybrid automatic repeat request acknowledgement information feedback on the uplink subframe after finishing data demodulation, and ensuring smooth feedback of the acknowledgement information by determining the subframe for the acknowledgement information.
The feedback method of the acknowledgement information according to the present invention may further include the following technical features:
In the foregoing technical solution, preferably, the feeding back the harq acknowledgement information to the base station on the uplink subframe specifically includes: and if the subframe number of the resource position of the received ultrahigh-reliability ultralow-delay communication data is n, the subframe number of the resource position occupied with the indication is n + m, and the subframe number of the minimum processing time of data demodulation is i, feeding back hybrid automatic repeat request acknowledgement information to the base station on the subframe of the number n + m + i.
In the technical scheme, the ultra-high-reliability ultra-low-delay communication data is received at a resource position with a subframe number n, an occupation indication is received at the mth subframe after the subframe n, and the number of the subframes with the minimum processing time for data demodulation is i, so that hybrid automatic repeat request acknowledgement information is fed back at the subframe number n + m + i, and the update of the feedback subframe is realized to ensure that the base station receives the acknowledgement information.
In any of the above technical solutions, preferably, the number of bits occupying the negative acknowledgement information is different from the number of bits occupying the negative acknowledgement in the hybrid automatic repeat request.
In the technical scheme, the bit number of the P-NACK information is different from the bit number of the negative response in the hybrid automatic repeat request, namely the P-NACK information is different from the NACK information in the hybrid automatic repeat request, the NACK information in the hybrid automatic repeat request informs the base station of retransmitting data, and the P-NACK information is used for informing the base station that the demodulation of the data is not completed at the current feedback time point, but the base station is not required to retransmit the data, so that unnecessary data retransmission is avoided, and system resources are saved.
According to another aspect of the present invention, an apparatus for feeding back acknowledgement information is provided, which is used for a mobile terminal, and includes: a receiving demodulation module for receiving and demodulating the occupation indication information from the base station; the information acquisition module is used for acquiring the position information of the occupation indication relative to the ultrahigh-reliability ultralow-delay communication data; a sending module, configured to send an occupation indication negative response message to the base station when a hybrid automatic repeat request feedback time arrives and data demodulation is not completed; a subframe confirmation module, configured to confirm an uplink subframe for hybrid automatic repeat request confirmation information feedback according to the position information of the occupancy indication; and the sending module is further used for feeding back hybrid automatic repeat request confirmation information to the base station on the confirmed uplink subframe after the data demodulation is finished.
According to the feedback device for confirming the information, provided by the invention, the mobile terminal demodulates the received occupation indication to obtain the position information of the occupation indication relative to the ultrahigh-reliability ultralow-delay communication data, namely, the position information of the occupation indication on which subframe after the subframe carrying the ultrahigh-reliability ultralow-delay communication data is positioned is determined, when the hybrid automatic repeat request feedback time point arrives but the data demodulation is not completed, P-NACK information is fed back to the base station to inform the base station that the data demodulation is not completed at the current feedback time point, but the data retransmission of the base station is not needed, and when the occupation indication is utilized to improve the success rate of the data demodulation, the unnecessary data retransmission is avoided, so that the system resource is saved. And determining an uplink subframe for hybrid automatic repeat request acknowledgement information feedback according to the position information of the occupation indication, further sending hybrid automatic repeat request acknowledgement information feedback on the uplink subframe after finishing data demodulation, and ensuring smooth feedback of the acknowledgement information by determining the subframe for the acknowledgement information.
The feedback device of the acknowledgement information according to the present invention may further include:
in the foregoing technical solution, preferably, the sending module is specifically configured to feed back the harq acknowledgement information to the base station on a subframe of n + m + i number if the subframe number of the resource location where the ultra-high-reliability ultra-low latency communication data is received is n, the subframe number of the resource location where the occupied indication is located is n + m, and the subframe number of the minimum processing time for data demodulation is i.
In the technical scheme, the ultra-high-reliability ultra-low-delay communication data is received at a resource position with a subframe number n, an occupation indication is received at the mth subframe after the subframe n, and the number of the subframes with the minimum processing time for data demodulation is i, so that hybrid automatic repeat request acknowledgement information is fed back at the subframe number n + m + i, and the update of the feedback subframe is realized to ensure that the base station receives the acknowledgement information.
In any of the above technical solutions, preferably, the number of bits occupying the negative acknowledgement information is different from the number of bits occupying the negative acknowledgement in the hybrid automatic repeat request.
In the technical scheme, the bit number of the P-NACK information is different from the bit number of the negative response in the hybrid automatic repeat request, namely the P-NACK information is different from the NACK information in the hybrid automatic repeat request, the NACK information in the hybrid automatic repeat request informs the base station of retransmitting data, and the P-NACK information is used for informing the base station that the demodulation of the data is not completed at the current feedback time point, but the base station is not required to retransmit the data, so that unnecessary data retransmission is avoided, and system resources are saved.
According to still another aspect of the present invention, a method for feeding back acknowledgement information is provided, where the method for feeding back acknowledgement information is used in a base station, and includes: configuring occupation indication information; sending occupation indication information to the mobile terminal so that the mobile terminal can acquire position information of the occupation indication relative to the ultrahigh-reliability ultralow-time-delay communication data according to the occupation indication information; receiving and demodulating occupation indication negative response information fed back by the mobile terminal; and receiving and demodulating the hybrid automatic repeat request acknowledgement information fed back by the mobile terminal.
The feedback method of the confirmation information provided by the invention configures and sends the occupation indication information to the mobile terminal so that the mobile terminal obtains the position information of the occupation indication relative to the ultrahigh-reliability ultralow-delay communication data according to the occupation indication information, namely the occupation indication is positioned on which subframe after the subframe carrying the ultrahigh-reliability ultralow-delay communication data. After receiving the occupation indication negative response information fed back by the mobile terminal, the mobile terminal is determined that the demodulation of the data is not completed at the current feedback time point, but the data does not need to be retransmitted to the mobile terminal, so that unnecessary data retransmission is avoided, and system resources are saved. And further receiving hybrid automatic repeat request acknowledgement information fed back by the mobile terminal, and determining that the mobile terminal completes the demodulation of the data.
In the foregoing technical solution, preferably, the receiving and demodulating the harq acknowledgement information fed back by the mobile terminal specifically includes: and if the subframe number of the resource position for sending the ultra-high reliable ultra-low delay communication data is n, the subframe number of the resource position occupied with the indication is n + m, and the subframe number of the minimum processing time of data demodulation is i, receiving the hybrid automatic repeat request acknowledgement information fed back by the mobile terminal on the subframe of the number n + m + i.
In the technical scheme, the ultra-high reliable ultra-low delay communication data is sent at a resource position with a subframe number of n, an occupation indication is sent at the mth subframe after the subframe n, and the number of the subframes with the minimum processing time for data demodulation of the mobile terminal is i, so that the hybrid automatic repeat request acknowledgement information is received at the subframe with the number of n + m + i, namely the acknowledgement information is received at the updated subframe.
According to another aspect of the present invention, an apparatus for feeding back acknowledgement information is provided, where the apparatus for feeding back acknowledgement information includes: the configuration module is used for configuring the occupation indication information; the sending module is used for sending the occupation indication information to the mobile terminal so that the mobile terminal can obtain the position information of the occupation indication relative to the ultrahigh-reliability ultralow-delay communication data according to the occupation indication information; a receiving module, configured to receive and demodulate occupancy indication negative response information fed back by the mobile terminal; and receiving and demodulating the hybrid automatic repeat request acknowledgement information fed back by the mobile terminal.
The feedback device for confirming the information, provided by the invention, configures and sends the occupation indication information to the mobile terminal, so that the mobile terminal obtains the position information of the occupation indication relative to the ultrahigh-reliability ultralow-delay communication data according to the occupation indication information, namely the occupation indication is positioned on which subframe after the subframe for bearing the ultrahigh-reliability ultralow-delay communication data. After receiving the occupation indication negative response information fed back by the mobile terminal, the mobile terminal is determined that the demodulation of the data is not completed at the current feedback time point, but the data does not need to be retransmitted to the mobile terminal, so that unnecessary data retransmission is avoided, and system resources are saved. And further receiving hybrid automatic repeat request acknowledgement information fed back by the mobile terminal, and determining that the mobile terminal completes the demodulation of the data.
In the foregoing technical solution, preferably, the receiving module is specifically configured to receive the harq acknowledgement information fed back by the mobile terminal on a subframe number n + m + i if a subframe number of a resource location where the ultra-high reliable ultra-low delay communication data is sent is n, a subframe number of a resource location where the occupied indication is located is n + m, and a subframe number of a minimum processing time for data demodulation is i.
In the technical scheme, the ultra-high reliable ultra-low delay communication data is sent at a resource position with a subframe number of n, an occupation indication is sent at m subframes after the subframe n, and the number of the subframes with the minimum processing time for data demodulation of the mobile terminal is i, so that the hybrid automatic repeat request acknowledgement information is received at the subframe with the number of n + m + i, namely the acknowledgement information is received at the updated subframe.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 shows a diagram of URLLC puncturing transmission in the related art;
FIG. 2a is a diagram illustrating a PI setting scheme in the related art;
FIG. 2b shows another PI setup diagram of the related art;
FIG. 3 is a diagram illustrating the effect of PI on data demodulation and feedback in the related art;
fig. 4 is a flowchart illustrating a feedback method for acknowledgement information of a mobile terminal according to an embodiment of the present invention;
FIG. 5 shows a schematic diagram of P-NACK feedback for one embodiment of the invention;
Fig. 6 is a flowchart illustrating a feedback method for acknowledgement information of a mobile terminal according to another embodiment of the present invention;
FIG. 7 is a diagram illustrating the updating of a feedback subframe according to an embodiment of the present invention;
fig. 8 is a schematic block diagram of a feedback apparatus for acknowledgement information of a mobile terminal according to an embodiment of the present invention;
fig. 9 is a flowchart illustrating a feedback method for acknowledgement information of a base station according to an embodiment of the present invention;
fig. 10 shows a schematic block diagram of a feedback apparatus for acknowledgement information of a base station according to an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
An embodiment of a first aspect of the present invention provides a method for feeding back acknowledgment information, which is used for a mobile terminal, and fig. 4 illustrates a flowchart of the method for feeding back acknowledgment information of a mobile terminal according to an embodiment of the present invention. Wherein, the method comprises the following steps:
and step 408, after the data demodulation is completed, feeding back hybrid automatic repeat request acknowledgement information to the base station on the confirmed uplink subframe.
In the feedback method of the acknowledgement information provided by the invention, the mobile terminal demodulates the received occupation indication to obtain the position information of the occupation indication relative to the ultrahigh-reliability ultralow-delay communication data, namely to determine which subframe the occupation indication is located after the subframe carrying the ultrahigh-reliability ultralow-delay communication data, as shown in fig. 5, when the hybrid automatic repeat request feedback time point arrives but the data demodulation is not completed, the P-NACK information (occupation indication negative response information) is fed back to the base station to inform the base station that the data demodulation is not completed at the current feedback time point, but the base station does not need to retransmit the data, and when the occupation indication is used for improving the success rate of the data demodulation, the unnecessary data retransmission is avoided, thereby saving the system resources. And determining an uplink subframe for hybrid automatic repeat request acknowledgement information feedback according to the position information of the occupation indication, further sending hybrid automatic repeat request acknowledgement information feedback on the uplink subframe after finishing data demodulation, and ensuring smooth feedback of the acknowledgement information by determining the subframe for the acknowledgement information.
Fig. 6 is a flowchart illustrating a feedback method for acknowledgement information of a mobile terminal according to another embodiment of the present invention. Wherein, the method comprises the following steps:
step 602, receiving and demodulating occupation indication information from a base station, and acquiring position information of the occupation indication relative to the ultra-high reliable ultra-low time delay communication data;
step 604, when the harq feedback time arrives and data demodulation is not completed, sending an occupation indication negative response message to the base station;
step 606, confirming the uplink subframe for hybrid automatic repeat request acknowledgement information feedback according to the position information of the occupation indication;
step 608, after completing the data demodulation, if the subframe number of the resource location where the ultra-high reliable ultra-low delay communication data is received is n, the subframe number of the resource location where the occupied indication is located is n + m, and the subframe number of the minimum processing time for data demodulation is i, feeding back the harq acknowledgement information to the base station on the subframe number n + m + i.
In this embodiment, the ultra-high-reliability ultra-low-latency communication data is received at a resource location with a subframe number n, and an occupation indication is received at the mth subframe after the subframe n, and the number of the subframes with the minimum processing time for data demodulation is i, then the harq acknowledgement information is fed back at the subframe with the number n + m + i, so as to update the feedback subframe to ensure that the base station receives the acknowledgement information. For example, as shown in fig. 7, if ultra-high-reliability ultra-low-latency communication data (URLLC) is received at subframe n, and an occupation indication is received at subframe 2 after subframe n, and the number i of subframes with the minimum processing time for data demodulation is 4, hybrid automatic repeat request acknowledgement information is fed back at subframe n + 6.
In one embodiment of the present invention, it is preferable that the number of bits occupying the negative acknowledgement information is different from the number of bits occupying the negative acknowledgement information in the hybrid automatic repeat request.
In this embodiment, the number of bits of the P-NACK information is different from the number of bits of the negative acknowledgement in the harq, that is, the P-NACK information is different from the NACK information in the harq, the NACK information in the harq informs the base station to retransmit data, and the P-NACK information is used to inform the base station that demodulation of data is not completed at the current feedback time point, but the base station is not required to retransmit data, so as to avoid unnecessary data retransmission, thereby saving system resources.
In the second aspect of the present invention, a feedback apparatus for acknowledgement information is proposed, which is used for a mobile terminal, and fig. 8 shows a schematic block diagram of a feedback apparatus 800 for acknowledgement information of a mobile terminal according to an embodiment of the present invention. Wherein the apparatus 800 comprises:
a receiving demodulation module 802, configured to receive and demodulate occupation indication information from a base station; an information obtaining module 804, configured to obtain position information of the occupation indication relative to the ultra-high reliable ultra-low latency communication data; a sending module 806, configured to send an occupation indication negative acknowledgement message to the base station when a hybrid automatic repeat request feedback time arrives and data demodulation is not completed; a subframe confirmation module 808, configured to confirm an uplink subframe for hybrid automatic repeat request acknowledgement information feedback according to the position information indicated by the occupancy; the sending module 806 is further configured to, after the data demodulation is completed, feed back hybrid automatic repeat request acknowledgement information to the base station on the acknowledged uplink subframe.
According to the feedback device 800 for confirming information provided by the invention, the mobile terminal demodulates the received occupation indication to obtain the position information of the occupation indication relative to the ultrahigh-reliability ultralow-delay communication data, namely, to determine which subframe the occupation indication is located after the subframe carrying the ultrahigh-reliability ultralow-delay communication data, as shown in fig. 5, when the hybrid automatic repeat request feedback time point arrives but data demodulation is not completed, the P-NACK information is fed back to the base station to inform the base station that the demodulation of the data is not completed at the current feedback time point, but the base station does not need to retransmit the data, and when the occupation indication is utilized to improve the success rate of data demodulation, unnecessary data retransmission is avoided, so that system resources are saved. And determining an uplink subframe for hybrid automatic repeat request acknowledgement information feedback according to the position information of the occupation indication, further sending hybrid automatic repeat request acknowledgement information feedback on the uplink subframe after finishing data demodulation, and ensuring smooth feedback of the acknowledgement information by determining the subframe for the acknowledgement information.
In an embodiment of the present invention, preferably, the sending module 804 is specifically configured to feed back the harq acknowledgement information to the base station on a subframe of n + m + i number if the subframe number of the resource location where the received ultra-high-reliability ultra-low latency communication data is n, the subframe number of the resource location where the occupied indication is located is n + m, and the subframe number of the minimum processing time for data demodulation is i.
In this embodiment, the super-high reliable ultra-low delay communication data is received at the resource location with the subframe number n, and the occupation indication is received at the mth subframe after the subframe n, and the number of the subframes with the minimum processing time for data demodulation is i, then the harq acknowledgement information is fed back at the subframe with the number n + m + i, so as to update the feedback subframe to ensure that the base station receives the acknowledgement information. For example, as shown in fig. 7, if ultra-high-reliability ultra-low-latency communication data (URLLC) is received at subframe n, and an occupation indication is received at subframe 2 after subframe n, and the number i of subframes with the minimum processing time for data demodulation is 4, hybrid automatic repeat request acknowledgement information is fed back at subframe n + 6.
In one embodiment of the present invention, it is preferable that the number of bits occupying the negative acknowledgement information is different from the number of bits occupying the negative acknowledgement information in the hybrid automatic repeat request.
In this embodiment, the number of bits of the P-NACK information is different from the number of bits of the negative acknowledgement in the harq, that is, the P-NACK information is different from the NACK information in the harq, the NACK information in the harq informs the base station to retransmit data, and the P-NACK information is used to inform the base station that demodulation of data is not completed at the current feedback time point, but the base station is not required to retransmit data, so as to avoid unnecessary data retransmission, thereby saving system resources.
An embodiment of a third aspect of the present invention provides a method for feeding back acknowledgment information, which is used for a base station, and fig. 9 shows a flowchart of the method for feeding back acknowledgment information for a base station according to an embodiment of the present invention. Wherein, the method comprises the following steps:
The feedback method of the confirmation information provided by the invention configures and sends the occupation indication information to the mobile terminal so that the mobile terminal obtains the position information of the occupation indication relative to the ultrahigh-reliability ultralow-delay communication data according to the occupation indication information, namely the occupation indication is positioned on which subframe after the subframe carrying the ultrahigh-reliability ultralow-delay communication data. After receiving the occupation indication negative response information fed back by the mobile terminal, the mobile terminal is determined that the demodulation of the data is not completed at the current feedback time point, but the data does not need to be retransmitted to the mobile terminal, so that unnecessary data retransmission is avoided, and system resources are saved. And further receiving hybrid automatic repeat request acknowledgement information fed back by the mobile terminal, and determining that the mobile terminal completes the demodulation of the data.
In the foregoing technical solution, preferably, the receiving and demodulating the harq acknowledgement information fed back by the mobile terminal specifically includes: and if the subframe number of the resource position for sending the ultra-high reliable ultra-low delay communication data is n, the subframe number of the resource position occupied with the indication is n + m, and the subframe number of the minimum processing time of data demodulation is i, receiving the hybrid automatic repeat request acknowledgement information fed back by the mobile terminal on the subframe of the number n + m + i.
In the technical scheme, the ultra-high reliable ultra-low delay communication data is sent at a resource position with a subframe number of n, an occupation indication is sent at the mth subframe after the subframe n, and the number of the subframes with the minimum processing time for data demodulation of the mobile terminal is i, so that the hybrid automatic repeat request acknowledgement information is received at the subframe with the number of n + m + i, namely the acknowledgement information is received at the updated subframe.
In the fourth aspect of the present invention, a feedback apparatus for acknowledgement information is proposed, which is used in a base station, and fig. 10 shows a schematic block diagram of a feedback apparatus 100 for acknowledgement information of a base station according to an embodiment of the present invention. Wherein the apparatus 110 comprises:
a configuration module 112, configured to configure the occupancy indication information; a sending module 114, configured to send occupation indication information to the mobile terminal, so that the mobile terminal obtains, according to the occupation indication information, position information of the occupation indication relative to the ultra-high reliable ultra-low latency communication data; a receiving module 116, configured to receive and demodulate the occupancy indication negative acknowledgement information fed back by the mobile terminal; and receiving and demodulating the hybrid automatic repeat request acknowledgement information fed back by the mobile terminal.
The feedback device for confirming the information, provided by the invention, configures and sends the occupation indication information to the mobile terminal, so that the mobile terminal obtains the position information of the occupation indication relative to the ultrahigh-reliability ultralow-delay communication data according to the occupation indication information, namely the occupation indication is positioned on which subframe after the subframe for bearing the ultrahigh-reliability ultralow-delay communication data. After receiving the occupation indication negative response information fed back by the mobile terminal, the mobile terminal is determined that the demodulation of the data is not completed at the current feedback time point, but the data does not need to be retransmitted to the mobile terminal, so that unnecessary data retransmission is avoided, and system resources are saved. And further receiving hybrid automatic repeat request acknowledgement information fed back by the mobile terminal, and determining that the mobile terminal completes the demodulation of the data.
In the foregoing technical solution, preferably, the receiving module is specifically configured to receive the harq acknowledgement information fed back by the mobile terminal on a subframe number n + m + i if a subframe number of a resource location where the ultra-high reliable ultra-low delay communication data is sent is n, a subframe number of a resource location where the occupied indication is located is n + m, and a subframe number of a minimum processing time for data demodulation is i.
In the technical scheme, the ultra-high reliable ultra-low delay communication data is sent at a resource position with a subframe number of n, an occupation indication is sent at the mth subframe after the subframe n, and the number of the subframes with the minimum processing time for data demodulation of the mobile terminal is i, so that the hybrid automatic repeat request acknowledgement information is received at the subframe with the number of n + m + i, namely the acknowledgement information is received at the updated subframe.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A feedback method of acknowledgement information is used for a mobile terminal, and is characterized in that the feedback method of acknowledgement information comprises the following steps:
receiving and demodulating occupation indication information from a base station to obtain position information of the occupation indication relative to the ultrahigh-reliability ultralow-delay communication data;
when hybrid automatic repeat request feedback time arrives and data demodulation is not finished, sending occupation indication negative response information to the base station;
confirming an uplink subframe for hybrid automatic repeat request acknowledgement information feedback according to the position information of the occupation indication;
and after the data demodulation is finished, feeding back the hybrid automatic repeat request acknowledgement information to the base station on the uplink subframe.
2. The method for feeding back acknowledgement information according to claim 1, wherein the feeding back the harq acknowledgement information to the base station on the uplink subframe specifically includes:
and if the subframe number of the resource position where the ultrahigh-reliability ultralow-delay communication data is received is n, the subframe number of the resource position where the occupied indication is located is n + m, and the subframe number of the minimum processing time of data demodulation is i, feeding back the hybrid automatic repeat request acknowledgement information to the base station on the subframe of the number n + m + i.
3. The feedback method of acknowledgement information according to claim 1 or 2,
the bit number of the occupation indication negative acknowledgement information is different from the bit number of the negative acknowledgement in the hybrid automatic repeat request.
4. A feedback device of acknowledgement information is used for a mobile terminal, and is characterized in that the feedback device of acknowledgement information comprises:
a receiving demodulation module for receiving and demodulating the occupation indication information from the base station;
the information acquisition module is used for acquiring the position information of the occupation indication relative to the ultrahigh-reliability ultralow-delay communication data;
a sending module, configured to send an occupation indication negative acknowledgement message to the base station when a hybrid automatic repeat request feedback time arrives and data demodulation is not completed;
a subframe confirmation module, configured to confirm an uplink subframe for hybrid automatic repeat request acknowledgement information feedback according to the position information of the occupancy indication;
the sending module is further configured to feed back the harq acknowledgement information to the base station on the uplink subframe after the data demodulation is completed.
5. The feedback device of acknowledgement information according to claim 4,
The sending module is specifically configured to feed back the harq acknowledgement information to the base station on the subframe with the number n + m + i if the subframe number of the resource location where the ultra-high-reliability ultra-low latency communication data is received is n, the subframe number of the resource location where the occupied indication is located is n + m, and the subframe number of the minimum processing time for data demodulation is i.
6. The feedback device for acknowledgement information according to claim 4 or 5,
the bit number of the occupation indication negative acknowledgement information is different from the bit number of the negative acknowledgement in the hybrid automatic repeat request.
7. A feedback method of acknowledgement information is used for a base station, and is characterized in that the feedback method of acknowledgement information comprises the following steps:
configuring occupation indication information;
sending the occupation indication information to a mobile terminal so that the mobile terminal can acquire the position information of the occupation indication relative to the ultra-high reliable ultra-low time delay communication data according to the occupation indication information;
receiving and demodulating occupation indication negative response information fed back by the mobile terminal when the hybrid automatic repeat request feedback time arrives and data demodulation is not finished;
and receiving and demodulating the hybrid automatic repeat request acknowledgement information fed back by the mobile terminal.
8. The method for feeding back acknowledgment information according to claim 7, wherein the receiving and demodulating the harq acknowledgment information fed back by the mobile terminal specifically comprises:
and if the subframe number of the resource position for sending the ultra-high reliable ultra-low delay communication data is n, the subframe number of the resource position where the occupied indication is located is n + m, and the subframe number of the minimum processing time of data demodulation is i, receiving the hybrid automatic repeat request acknowledgement information fed back by the mobile terminal on the subframe of number n + m + i.
9. An apparatus for feeding back acknowledgement information, which is used in a base station, wherein the apparatus for feeding back acknowledgement information comprises:
the configuration module is used for configuring the occupation indication information;
the sending module is used for sending the occupation indication information to the mobile terminal so that the mobile terminal can obtain the position information of the occupation indication relative to the ultrahigh-reliability ultralow-delay communication data according to the occupation indication information;
a receiving module, configured to receive and demodulate occupancy indication negative acknowledgement information fed back by the mobile terminal when the harq feedback time arrives and data demodulation is not completed; and receiving and demodulating hybrid automatic repeat request acknowledgement information fed back by the mobile terminal.
10. The feedback device of acknowledgement information according to claim 9,
the receiving module is specifically configured to receive the harq acknowledgement information fed back by the mobile terminal on a subframe of n + m + i number if the subframe number of a resource location where the ultra-high reliable ultra-low delay communication data is sent is n, the subframe number of a resource location where the occupied indication is located is n + m, and the subframe number of the minimum processing time for data demodulation is i.
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