CN109586852A - Improve method, apparatus, equipment and the storage medium of downlink transfer feedback accuracy - Google Patents
Improve method, apparatus, equipment and the storage medium of downlink transfer feedback accuracy Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1864—ARQ related signaling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1896—ARQ related signaling
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Abstract
The invention discloses a kind of methods for improving downlink transfer feedback accuracy, which comprises detects the certain types of downlink transfer completion to user equipment (UE)；The certain types of downlink transfer indicates that the UE carries out confirming/non-acknowledgement (ACK/NACK) feedback；Determine that the UE carries out the ACK/NACK and feeds back corresponding ACK/NACK feedback subframe；The uplink authorization that the ACK/NACK feedback subframe is carried out to the UE, so that the ACK/NACK number of bits of feedback of UE number of sub frames corresponding with the downlink transfer is identical.The present invention further simultaneously discloses a kind of device, equipment and storage medium for improving downlink transfer feedback accuracy.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a storage medium for improving downlink transmission feedback accuracy.
Background
The HARQ feedback of a downlink hybrid automatic Repeat reQuest (HARQ) of a Long Term Evolution (LTE) system refers to feedback of User Equipment (UE) on downlink scheduling of a base station side. For some types of downlink transmission (such as dynamic scheduling of downlink HARQ) at the base station side, the UE needs to respond with acknowledgement/non-acknowledgement (ACK/NACK).
Under a Time Division Duplex (TDD) system, for different uplink-downlink subframe ratios, there is a case where one uplink subframe feeds back multiple downlink subframes, in some cases, the UE performs ACK/NACK feedback by using fixed 2 bits, and the base station side cannot accurately determine the ACK/NACK feedback condition of the UE by using the fed-back 2 bits, thereby causing invalid downlink retransmission. In the prior art, no related technical scheme for avoiding the situation exists.
Disclosure of Invention
The embodiment of the invention provides a method, a device, equipment and a storage medium for improving downlink transmission feedback precision, at least solves the problems in the prior art, and can enable a base station side to accurately judge the ACK/NACK feedback condition of UE.
The technical scheme of the embodiment of the invention is realized as follows:
the embodiment of the invention provides a method for improving downlink transmission feedback precision, which comprises the following steps:
detecting that downlink transmission of a specific type for the UE is completed; the downlink transmission of the specific type indicates the UE to perform ACK/NACK feedback;
determining an ACK/NACK feedback subframe corresponding to the ACK/NACK feedback performed by the UE;
and performing uplink authorization on the ACK/NACK feedback sub-frame on the UE, so that the ACK/NACK feedback bit number of the UE is the same as the number of sub-frames corresponding to the downlink transmission.
In the foregoing solution, before performing uplink grant on the ACK/NACK feedback subframe for the UE, the method further includes:
judging whether preset information is sent on the ACK/NACK feedback subframe of the UE to obtain a judgment result;
and when the judgment result indicates that preset information is sent on the ACK/NACK feedback subframe, performing uplink authorization on the ACK/NACK feedback subframe on the UE.
In the foregoing solution, the determining whether there is preset information to be sent on the ACK/NACK feedback subframe of the UE includes:
determining a transmission subframe corresponding to the preset information transmitted by the UE;
and when the transmission subframe corresponding to the preset information is the same as the ACK/NACK feedback subframe, judging that preset information transmission exists on the ACK/NACK feedback subframe of the UE.
In the foregoing solution, the determining whether there is preset information to be sent on the ACK/NACK feedback subframe of the UE includes:
judging whether at least one of the following information transmission exists on the ACK/NACK feedback subframe of the UE:
a Channel Status Indicator (CSI), a Scheduling Request (SR).
In the foregoing solution, before the detecting that the downlink transmission of the specific type to the UE is completed, the method further includes:
determining a downlink scheduling priority corresponding to the UE;
based on the downlink scheduling priority corresponding to the UE, at least one of the following scheduling is performed on the UE:
performing dynamic scheduling of downlink HARQ for the UE;
and performing Semi-Persistent Scheduling (SPS) of downlink HARQ for the UE.
The embodiment of the invention also provides a device for improving the downlink transmission feedback precision, which comprises:
a detecting unit, configured to detect whether downlink transmission of a specific type to the UE is completed, and trigger the determining unit when completion is detected; the downlink transmission of the specific type indicates the UE to perform ACK/NACK feedback;
a determining unit, configured to determine an ACK/NACK feedback subframe corresponding to the ACK/NACK feedback performed by the UE;
and the authorization unit is used for carrying out uplink authorization on the ACK/NACK feedback sub-frame on the UE, so that the ACK/NACK feedback bit number of the UE is the same as the number of the sub-frames corresponding to the downlink transmission.
In the above scheme, the determining unit is further configured to determine whether there is preset information to be sent on an ACK/NACK feedback subframe of the UE, so as to obtain a determination result;
and when the judgment result indicates that preset information is sent on the ACK/NACK feedback subframe, triggering the authorization unit to perform uplink authorization on the ACK/NACK feedback subframe on the UE.
In the foregoing solution, the determining unit is further configured to determine a transmission subframe corresponding to the UE transmitting the preset information;
and when the transmission subframe corresponding to the preset information is the same as the ACK/NACK feedback subframe, judging that preset information transmission exists on the ACK/NACK feedback subframe of the UE.
In the foregoing solution, the determining unit is further configured to determine whether at least one of the following information transmissions exists on an ACK/NACK feedback subframe of the UE:
channel state indication, scheduling request.
In the above scheme, the apparatus further comprises:
a scheduling unit, configured to determine a downlink scheduling priority corresponding to the UE;
based on the downlink scheduling priority corresponding to the UE, at least one of the following scheduling is performed on the UE:
performing dynamic scheduling of downlink HARQ for the UE;
and performing SPS scheduling of downlink HARQ for the UE.
The embodiment of the invention also provides equipment for improving the downlink transmission feedback precision, which comprises the following components:
a memory configured to store an executable program;
and the processor is configured to implement the method for improving the downlink transmission feedback precision when executing the executable program stored in the memory.
The embodiment of the invention also provides a storage medium, which stores an executable program, and when the executable program is executed by a processor, the method for improving the downlink transmission feedback precision is realized.
According to the method, the device, the equipment and the storage medium for improving the downlink transmission feedback precision, provided by the embodiment of the invention, the base station side detects that the downlink transmission of a specific type for the UE is completed; the downlink transmission of the specific type indicates the UE to perform ACK/NACK feedback; determining an ACK/NACK feedback subframe corresponding to the ACK/NACK feedback performed by the UE; and performing uplink authorization on the ACK/NACK feedback sub-frame on the UE, so that the ACK/NACK feedback bit number of the UE is the same as the number of sub-frames corresponding to the downlink transmission. Therefore, the ACK/NACK feedback bit number of the UE is the same as the subframe number corresponding to the downlink transmission of the base station side, the base station side can accurately determine the ACK/NACK feedback condition of the UE through the ACK/NACK feedback bit number of the UE, and the ACK/NACK feedback precision of the UE is improved.
Drawings
FIG. 1 is a schematic diagram illustrating a timing relationship between downlink transmission and corresponding ACK/NACK when a subframe ratio is 2 in a TDD system;
fig. 2 is a first flowchart of a method for improving downlink transmission feedback accuracy according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a method for improving downlink transmission feedback accuracy according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a device for improving downlink transmission feedback accuracy according to an embodiment of the present invention;
fig. 5 is an optional schematic diagram of a device for improving downlink transmission feedback accuracy as a hardware entity according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the examples provided herein are merely illustrative of the present invention and are not intended to limit the present invention. In addition, the following embodiments are provided as partial embodiments for implementing the present invention, not all embodiments for implementing the present invention, and the technical solutions described in the embodiments of the present invention may be implemented in any combination without conflict.
It should be noted that, in the embodiments of the present invention, the terms "comprises", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion, so that a method or apparatus including a series of elements includes not only the explicitly recited elements but also other elements not explicitly listed or inherent to the method or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other related elements in a method or apparatus including the element (e.g., steps in a method or elements in an apparatus, such as a part of a circuit, a part of a processor, a part of a program or software, etc.).
For example, the method for improving the downlink transmission feedback accuracy provided in the embodiment of the present invention includes a series of steps, but the method for improving the downlink transmission feedback accuracy provided in the embodiment of the present invention is not limited to the described steps, and similarly, the apparatus for improving the downlink transmission feedback accuracy provided in the embodiment of the present invention includes a series of units, but the apparatus provided in the embodiment of the present invention is not limited to include the explicitly described units, and may include units that are required to acquire related information or perform processing based on the information.
In the research process, the inventor finds that, unlike a Physical Downlink Shared Channel (PDSCH) in which ACK/NACK sent by one uplink subframe only corresponds to one Downlink subframe in Frequency Division Duplex (FDD), in TDD, PDSCHs sent by a plurality of Downlink subframes may need to reply ACK/NACK in the same uplink subframe, and in this case, the plurality of Downlink subframes form an HARQ feedback window.
When the ACK/NACK and the CSI or SR are sent in the same subframe, the ACK/NACK can be sent by multiplexing on the CSI or SR resource, the feedback information is 2 bits, the 2 bits indicate the number of the ACKs in the feedback window, and the ACKs can be obtained by looking up a table Table7.3-1.
Fig. 1 is a schematic diagram illustrating a timing relationship between PDSCH transmission and corresponding ACK/NACK when an uplink-downlink subframe ratio is 2 in a TDD scheme, and referring to fig. 1, four subframes, i.e., 4#, 5#, 6# and 8# form an HARQ feedback window, and ACK/NACK of the feedback window is transmitted in a 2# subframe. If the base station side has downlink scheduling in four sub-frames of 4#, 5#, 6# and 8#, the number of the ACKs ranges from 0 to 4. If the 2bit fed back by the UE is 11, the Table look-up Table7.3-1 finds that the number of ACKs corresponding to 11 is 1 or 4, and both 1 and 4 are reasonable, the base station side cannot accurately determine which one is, which may result in invalid downlink retransmission.
Table 7.3-1
In the embodiment of the invention, the base station side detects that the downlink transmission of the specific type of the UE is completed; the downlink transmission of the specific type indicates the UE to perform ACK/NACK feedback; determining an ACK/NACK feedback subframe corresponding to ACK/NACK feedback of the UE; and carrying out uplink authorization on the ACK/NACK feedback sub-frame on the UE, so that the ACK/NACK feedback bit number of the UE is the same as the number of the sub-frames corresponding to downlink transmission. Therefore, the ACK/NACK feedback bit number of the UE is the same as the subframe number corresponding to the downlink transmission of the base station side, the base station side can accurately determine the ACK/NACK feedback condition of the UE through the ACK/NACK feedback bit number of the UE, and the ACK/NACK feedback precision of the UE is improved.
Fig. 2 is a schematic flow chart of a method for improving downlink transmission feedback accuracy in an embodiment of the present invention, which is implemented in a TDD mode, and as shown in fig. 2, the method for improving downlink transmission feedback accuracy in an embodiment of the present invention includes:
step 101: the base station detects that the downlink transmission of the specific type of the UE is completed; and the downlink transmission of the specific type indicates the UE to perform ACK/NACK feedback.
Step 102: and determining an ACK/NACK feedback subframe corresponding to ACK/NACK feedback of the UE.
Step 103: and performing uplink authorization on the ACK/NACK feedback sub-frame on the UE, so that the ACK/NACK feedback bit number of the UE is the same as the number of sub-frames corresponding to the downlink transmission.
Here, in an actual application, the base station performs the operation of downlink transmission on the UE before detecting that the downlink transmission of the specific type for the UE is completed. The specific type of downlink transmission here is downlink transmission for which the UE needs to perform ACK/NACK feedback, for example: the base station determines a downlink scheduling priority corresponding to the UE, and performs dynamic scheduling of downlink HARQ for the UE and/or performs semi-static scheduling of the downlink HARQ for the UE based on the downlink scheduling priority corresponding to the UE.
In practical implementation, after the base station completes downlink transmission (downlink scheduling) for the UE, an ACK/NACK feedback subframe corresponding to ACK/NACK feedback performed by the UE may be obtained based on a subframe performing downlink scheduling and a current uplink-downlink subframe ratio. For example: if the subframe ratio when the base station performs downlink scheduling is 2, and the subframes performing downlink scheduling are four subframes, namely 9#, 0#, 1# and 3#, it is determined that the ACK/NACK feedback subframe of the corresponding UE is subframe 7 #.
After determining the ACK/NACK feedback subframe of the UE, the base station performs Uplink authorization on the ACK/NACK feedback subframe for the UE, that is, performs Physical Uplink Shared Channel (PUSCH) authorization on the ACK/NACK feedback subframe for the UE, so that the UE multiplexes ACK/NACK on the PUSCH for transmission, and the ACK/NACK feedback bit number is the same as the subframe number (that is, downlink scheduling subframe number) corresponding to downlink transmission of the base station.
Fig. 3 is a schematic flow chart of a method for improving downlink transmission feedback accuracy in an embodiment of the present invention, which is implemented in a TDD format, and as shown in fig. 3, the method for improving downlink transmission feedback accuracy in an embodiment of the present invention includes:
first, before performing downlink scheduling, the base station needs to perform scheduling parameter configuration on the base station, such as subframe matching, CSI, SR related configuration, and scheduling priority (scheduling order) setting of the UE.
Step 201: and the base station performs specific type downlink scheduling on the UE based on the downlink scheduling priority of the UE.
Here, in actual implementation, the specific type of downlink scheduling is downlink scheduling that requires the UE to perform ACK/NACK feedback, that is, instructing the UE to perform ACK/NACK feedback.
In an embodiment, the base station performs dynamic scheduling of downlink HARQ for the UE, and/or performs SPS scheduling of downlink HARQ for the UE.
Step 202: and the base station detects that the downlink scheduling of the specific type of the UE is finished, and determines an ACK/NACK feedback subframe corresponding to the ACK/NACK feedback of the UE.
In practical application, after the base station completes downlink transmission (downlink scheduling) for the UE, an ACK/NACK feedback subframe corresponding to ACK/NACK feedback performed by the UE can be obtained based on a subframe performing downlink scheduling and a current uplink-downlink subframe ratio. For example: if the subframe ratio when the base station performs downlink scheduling is 2, and the subframes performing downlink scheduling are four subframes, namely 4#, 5#, 6# and 8#, it can be determined that the ACK/NACK feedback subframe of the corresponding UE is subframe 2 #.
Step 203: judging whether preset information transmission exists on an ACK/NACK feedback subframe of the UE, and if so, executing step 204; if not, step 205 is performed.
Here, in an embodiment, whether there is a preset information transmission on an ACK/NACK feedback subframe of the UE may be determined as follows:
determining a transmission subframe corresponding to the preset information transmitted by the UE;
when a transmission subframe and an ACK/NACK feedback subframe corresponding to preset information are the same, judging that preset information transmission exists on the ACK/NACK feedback subframe of the UE;
and when the transmission subframe and the ACK/NACK feedback subframe corresponding to the preset information are different, judging that no preset information is sent on the ACK/NACK feedback subframe of the UE.
In actual implementation, the transmission subframe corresponding to the UE transmitting the preset information may be determined based on the relevant configuration information for the preset information.
In an embodiment, the preset information may be a channel status indication or a scheduling request.
Step 204: and carrying out PUSCH authorization of an ACK/NACK feedback sub-frame on the UE.
Here, when the base station grants the PUSCH of the ACK/NACK feedback subframe to the UE, the UE multiplexes the ACK/NACK on the PUSCH for transmission, and the number of ACK/NACK feedback bits is the same as the number of subframes corresponding to downlink transmission of the base station (i.e., the number of downlink scheduling subframes).
Continuing with the example that the frame ratio is 2, and the subframes for downlink scheduling are 4#, 5#, 6# and 8#, the UE needs to perform ACK/NACK feedback on the subframe 2#, in the embodiment of the present invention, if the base station detects that there is a scheduling request (or channel state indication) sent on the subframe 2#, the base station performs PUSCH authorization on the subframe 2# for the UE, so that the UE multiplexes ACK/NACK on the PUSCH for transmission, and the ACK/NACK feedback bit number is 4 bits (downlink scheduling subframe number), if in actual application, the UE detects that the downlink transmission of the subframe 4# is missing, the 4 bits fed back may be 0111, where 0 corresponds to NACK and 1 corresponds to ACK. Therefore, the base station can accurately know the ACK/NACK feedback condition of the UE, and the feedback precision of downlink transmission is improved.
In different embodiments, after the base station completes the uplink grant for the UE, the scheduling information for the UE is updated, where the scheduling information may include a downlink scheduling condition (downlink scheduling subframe, etc.) for the UE, a PUSCH grant condition (e.g., whether an uplink grant for an ACK/NACK feedback subframe for the UE is performed), and the like.
In different embodiments, when the base station updates the scheduling information for the UE, the downlink scheduling for other UEs, the PUSCH grant for the ACK/NACK feedback subframe, and the like may continue to be performed based on the downlink scheduling priority (or scheduling order).
Step 205: and ending the processing flow.
Fig. 4 is a schematic diagram illustrating a structure of a device for improving downlink transmission feedback accuracy in an embodiment of the present invention, which is applied to a base station side, and as shown in fig. 4, the device for improving downlink transmission feedback accuracy in an embodiment of the present invention includes:
a detecting unit 41, configured to detect whether downlink transmission of a specific type to the UE is completed, and trigger the determining unit when completion is detected; the downlink transmission of the specific type indicates the UE to perform ACK/NACK feedback;
a determining unit 42, configured to determine an ACK/NACK feedback subframe corresponding to the ACK/NACK feedback performed by the UE;
an authorization unit 43, configured to perform uplink authorization on the ACK/NACK feedback subframe for the UE, so that the number of ACK/NACK feedback bits of the UE is the same as the number of subframes corresponding to the downlink transmission.
In an embodiment, the determining unit 42 is further configured to determine whether there is preset information sent on an ACK/NACK feedback subframe of the UE, so as to obtain a determination result;
and when the judgment result indicates that preset information is sent on the ACK/NACK feedback subframe, triggering the authorization unit to perform uplink authorization on the ACK/NACK feedback subframe on the UE.
In an embodiment, the determining unit 42 is further configured to determine a transmission subframe corresponding to the UE transmitting the preset information;
and when the transmission subframe corresponding to the preset information is the same as the ACK/NACK feedback subframe, judging that preset information transmission exists on the ACK/NACK feedback subframe of the UE.
In an embodiment, the determining unit 42 is further configured to determine whether there is information transmission of at least one of the following on an ACK/NACK feedback subframe of the UE:
the channel state indicates CSI, scheduling request SR.
In one embodiment, the apparatus further comprises:
a scheduling unit 44, configured to determine a downlink scheduling priority corresponding to the UE;
based on the downlink scheduling priority corresponding to the UE, at least one of the following scheduling is performed on the UE:
performing dynamic scheduling of downlink HARQ for the UE;
and performing SPS scheduling of downlink HARQ for the UE.
Fig. 5 is a schematic diagram of an optional hardware structure of the apparatus for improving downlink transmission feedback accuracy in the embodiment of the present invention, and as shown in fig. 5, the apparatus for improving downlink transmission feedback accuracy in the embodiment of the present invention includes: a processor 51, a memory 52 and at least one external communication interface 53; the processor 51, the memory 52 and the external communication interface 53 are all connected through a bus 54; wherein,
a memory 52 configured to store an executable program;
a processor 51 configured to implement, when executing the executable program stored in the memory:
detecting that downlink transmission of a specific type for the UE is completed; the downlink transmission of the specific type indicates the UE to perform ACK/NACK feedback;
determining an ACK/NACK feedback subframe corresponding to the ACK/NACK feedback performed by the UE;
and performing uplink authorization on the ACK/NACK feedback sub-frame on the UE, so that the ACK/NACK feedback bit number of the UE is the same as the number of sub-frames corresponding to the downlink transmission.
The processor 51, when executing the executable program stored in the memory, is further configured to implement:
judging whether preset information is sent on the ACK/NACK feedback subframe of the UE to obtain a judgment result;
and when the judgment result indicates that preset information is sent on the ACK/NACK feedback subframe, performing uplink authorization on the ACK/NACK feedback subframe on the UE.
The processor 51, when executing the executable program stored in the memory, is further configured to implement:
determining a transmission subframe corresponding to the preset information transmitted by the UE;
and when the transmission subframe corresponding to the preset information is the same as the ACK/NACK feedback subframe, judging that preset information transmission exists on the ACK/NACK feedback subframe of the UE.
The processor 51, when executing the executable program stored in the memory, is further configured to implement:
judging whether at least one of the following information transmission exists on the ACK/NACK feedback subframe of the UE:
the channel state indicates CSI, scheduling request SR.
The processor 51, when executing the executable program stored in the memory, is further configured to implement:
determining a downlink scheduling priority corresponding to the UE;
based on the downlink scheduling priority corresponding to the UE, at least one of the following scheduling is performed on the UE:
performing dynamic scheduling of downlink HARQ for the UE;
and performing SPS scheduling of downlink HARQ for the UE.
The embodiment of the invention also provides a computer storage medium, which stores an executable program, and when the executable program is executed by a processor, the executable program realizes that:
detecting that downlink transmission of a specific type for the UE is completed; the downlink transmission of the specific type indicates the UE to perform ACK/NACK feedback;
determining an ACK/NACK feedback subframe corresponding to the ACK/NACK feedback performed by the UE;
and performing uplink authorization on the ACK/NACK feedback sub-frame on the UE, so that the ACK/NACK feedback bit number of the UE is the same as the number of sub-frames corresponding to the downlink transmission.
The executable program, when executed by the processor, further implements:
judging whether preset information is sent on the ACK/NACK feedback subframe of the UE to obtain a judgment result;
and when the judgment result indicates that preset information is sent on the ACK/NACK feedback subframe, performing uplink authorization on the ACK/NACK feedback subframe on the UE.
The executable program, when executed by the processor, further implements:
determining a transmission subframe corresponding to the preset information transmitted by the UE;
and when the transmission subframe corresponding to the preset information is the same as the ACK/NACK feedback subframe, judging that preset information transmission exists on the ACK/NACK feedback subframe of the UE.
The executable program, when executed by the processor, further implements:
judging whether at least one of the following information transmission exists on the ACK/NACK feedback subframe of the UE:
the channel state indicates CSI, scheduling request SR.
The executable program, when executed by the processor, further implements:
determining a downlink scheduling priority corresponding to the UE;
based on the downlink scheduling priority corresponding to the UE, at least one of the following scheduling is performed on the UE:
performing dynamic scheduling of downlink HARQ for the UE;
and performing SPS scheduling of downlink HARQ for the UE.
Here, it should be noted that: the above description related to the apparatus and device for improving the downlink transmission feedback accuracy is similar to the above description of the method, and the description of the beneficial effects of the same method is omitted for brevity. For technical details not disclosed in the embodiment of the apparatus for improving downlink transmission feedback accuracy of the present invention, please refer to the description of the embodiment of the method of the present invention.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (12)
1. A method for improving downlink transmission feedback accuracy, the method comprising:
detecting that downlink transmission of a specific type for User Equipment (UE) is completed; the downlink transmission of the specific type indicates the UE to perform ACK/NACK feedback;
determining an ACK/NACK feedback subframe corresponding to the ACK/NACK feedback performed by the UE;
and performing uplink authorization on the ACK/NACK feedback sub-frame on the UE, so that the ACK/NACK feedback bit number of the UE is the same as the number of sub-frames corresponding to the downlink transmission.
2. The method of claim 1, wherein before performing the uplink grant of the ACK/NACK feedback subframe to the UE, the method further comprises:
judging whether preset information is sent on the ACK/NACK feedback subframe of the UE to obtain a judgment result;
and when the judgment result indicates that preset information is sent on the ACK/NACK feedback subframe, performing uplink authorization on the ACK/NACK feedback subframe on the UE.
3. The method of claim 2, wherein the determining whether there is a preset information transmission on an ACK/NACK feedback subframe of the UE comprises:
determining a transmission subframe corresponding to the preset information transmitted by the UE;
and when the transmission subframe corresponding to the preset information is the same as the ACK/NACK feedback subframe, judging that preset information transmission exists on the ACK/NACK feedback subframe of the UE.
4. The method of claim 2, wherein the determining whether there is a preset information transmission on an ACK/NACK feedback subframe of the UE comprises:
judging whether at least one of the following information transmission exists on the ACK/NACK feedback subframe of the UE:
the channel state indicates CSI, scheduling request SR.
5. The method according to claim 1 or 2, wherein before the detecting that the downlink transmission of the specific type to the UE is completed, the method further comprises:
determining a downlink scheduling priority corresponding to the UE;
based on the downlink scheduling priority corresponding to the UE, at least one of the following scheduling is performed on the UE:
performing dynamic scheduling of a downlink hybrid automatic repeat request (HARQ) to the UE;
and performing semi-persistent scheduling (SPS) of downlink HARQ for the UE.
6. An apparatus for improving downlink transmission feedback accuracy, the apparatus comprising:
a detecting unit, configured to detect whether downlink transmission of a specific type to a user equipment UE is completed, and trigger a determining unit when completion is detected; the downlink transmission of the specific type indicates the UE to perform ACK/NACK feedback;
a determining unit, configured to determine an ACK/NACK feedback subframe corresponding to the ACK/NACK feedback performed by the UE;
and the authorization unit is used for carrying out uplink authorization on the ACK/NACK feedback sub-frame on the UE, so that the ACK/NACK feedback bit number of the UE is the same as the number of the sub-frames corresponding to the downlink transmission.
7. The apparatus of claim 6,
the determining unit is further configured to determine whether preset information is sent on an ACK/NACK feedback subframe of the UE, so as to obtain a determination result;
and when the judgment result indicates that preset information is sent on the ACK/NACK feedback subframe, triggering the authorization unit to perform uplink authorization on the ACK/NACK feedback subframe on the UE.
8. The apparatus of claim 7,
the determining unit is further configured to determine a transmission subframe corresponding to the UE transmitting the preset information;
and when the transmission subframe corresponding to the preset information is the same as the ACK/NACK feedback subframe, judging that preset information transmission exists on the ACK/NACK feedback subframe of the UE.
9. The apparatus of claim 7,
the determining unit is further configured to determine whether at least one of the following information transmissions exists on an ACK/NACK feedback subframe of the UE:
the channel state indicates CSI, scheduling request SR.
10. The apparatus of claim 6 or 7, further comprising:
a scheduling unit, configured to determine a downlink scheduling priority corresponding to the UE;
based on the downlink scheduling priority corresponding to the UE, at least one of the following scheduling is performed on the UE:
performing dynamic scheduling of a downlink hybrid automatic repeat request (HARQ) to the UE;
and performing semi-persistent scheduling (SPS) of downlink HARQ for the UE.
11. An apparatus for improving downlink transmission feedback accuracy, the apparatus comprising:
a memory configured to store an executable program;
a processor configured to execute the executable program stored in the memory to implement the method for improving the accuracy of downlink transmission feedback according to any one of claims 1 to 5.
12. A storage medium storing an executable program, which when executed by a processor, implements the method for improving downlink transmission feedback accuracy according to any one of claims 1 to 5.
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