CN114866207B - Feedback-based time slot aggregation processing method, system, equipment and medium - Google Patents
Feedback-based time slot aggregation processing method, system, equipment and medium Download PDFInfo
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- CN114866207B CN114866207B CN202210436886.9A CN202210436886A CN114866207B CN 114866207 B CN114866207 B CN 114866207B CN 202210436886 A CN202210436886 A CN 202210436886A CN 114866207 B CN114866207 B CN 114866207B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/27—Transitions between radio resource control [RRC] states
Abstract
The application provides a time slot aggregation processing method, a system, equipment and a medium based on feedback, wherein the method comprises the following steps: establishing RRC connection between a transmitting end and a receiving end; the sending end sends a first data packet to the receiving end based on the RRC connection; when the sending end receives HARQ non-acknowledgement NACK feedback, the sending end acquires the residual data quantity related to the first data packet in a buffer and the number of times of received HARQ non-acknowledgement NACK feedback related to the first data packet; the sending end adjusts the time slot aggregation parameters according to the residual data quantity in the buffer and the number of times of HARQ non-acknowledgement NACK feedback, and sends the adjusted time slot aggregation parameters to the receiving end; the data transmission is carried out between the sending end and the receiving end based on the adjusted time slot aggregation parameters; the application realizes the dynamic adjustment of the time slot aggregation related parameters according to the actual network condition.
Description
Technical Field
The application relates to the technical field of 5G communication, in particular to a time slot aggregation processing method, a system, equipment and a medium based on feedback.
Background
3GPP (Third Generation Partnership Project ) defines a time slot aggregation technique, namely, redundancy is added by transmitting the same data in n consecutive slots, which is used for improving coverage of cell edge terminals and solving the problem of far point coverage.
Under the existing mechanism, once the configuration is completed, the parameters of the timeslot aggregation are fixed values, and cannot be flexibly changed according to the actual conditions of transmission. For example, if the transmitting end is configured not to start the timeslot aggregation, the UE (User Equipment) may perform multiple retransmissions in a poor channel environment, and each retransmission must send DCI (Downlink Control Information ), which will increase the overhead of the control channel and increase the information delay. If the number of repetition of the timeslot aggregation is configured to be 8, the UE can waste traffic channel resources when the channel environment is good.
It can be seen that this method of static configuration reduces the spectral efficiency of the network or increases the overhead of the control channel.
Disclosure of Invention
Aiming at the problems in the prior art, the application aims to provide a time slot aggregation processing method, a system, equipment and a medium based on feedback, which solve the problem that the prior time slot aggregation processing method can not dynamically adjust the time slot aggregation related parameters according to the actual network condition.
In order to achieve the above object, the present application provides a method for processing slot aggregation based on feedback, the method comprising the following steps:
establishing RRC connection between a transmitting end and a receiving end;
the sending end sends a first data packet to the receiving end based on the RRC connection;
when the sending end receives HARQ non-acknowledgement NACK feedback, the sending end acquires the residual data quantity related to the first data packet in a buffer and the number of times of received HARQ non-acknowledgement NACK feedback related to the first data packet;
the sending end adjusts the time slot aggregation parameters according to the residual data quantity in the buffer and the number of times of HARQ non-acknowledgement NACK feedback, and sends the adjusted time slot aggregation parameters to the receiving end;
and data transmission is performed between the sending end and the receiving end based on the adjusted time slot aggregation parameters.
Optionally, the method further comprises the steps of:
when the transmitting end does not receive the HARQ non-acknowledgement NACK feedback, the transmitting end maintains the current time slot aggregation parameter.
Optionally, the sending end adjusts a time slot aggregation parameter according to the remaining data amount in the buffer and the number of times of the HARQ non-acknowledgement NACK feedback, including:
the sending end adjusts a time slot aggregation parameter according to the residual data quantity in the buffer, the number of times of the HARQ non-acknowledgement NACK feedback and a preset mapping table; and the preset mapping table stores the mapping relation between the number of times of the HARQ non-acknowledgement NACK feedback and the number of time slot aggregation repetition.
Optionally, the sending end adjusts a time slot aggregation parameter according to the remaining data amount in the buffer and the number of times of the HARQ non-acknowledgement NACK feedback, including:
and when the residual data quantity of the first data packet in the buffer of the transmitting end is zero, setting the time slot aggregation repetition number as a first preset value.
Optionally, the sending end adjusts a time slot aggregation parameter according to the remaining data amount in the buffer and the number of times of the HARQ non-acknowledgement NACK feedback, including:
when the remaining data amount of the first data packet in the buffer of the transmitting end is not zero, the transmitting end determines the corresponding time slot aggregation repetition number according to the number of times of the HARQ non-acknowledgement NACK feedback and the preset mapping table.
Optionally, in the preset mapping table, when the number of times of the HARQ non-acknowledgement NACK feedback is 1, the number of time slot aggregation repetition is 2; when the number of times of the HARQ non-acknowledgement NACK feedback is 2 or 3, the time slot aggregation repetition number is 4; and when the number of times of the HARQ non-acknowledgement NACK feedback is a positive integer greater than 3, the time slot aggregation repetition number is 8.
Optionally, when the sender receives HARQ non-acknowledgement NACK feedback, the sender obtaining the remaining data amount related to the first data packet in the buffer and the number of times of receiving HARQ non-acknowledgement NACK feedback related to the first data packet, including:
and when the sender receives the HARQ non-acknowledgement NACK feedback and the residual data quantity about the first data packet in the buffer of the sender is not zero, the sender continuously retransmits the first data packet to the receiver until the sender receives the HARQ acknowledgement ACK feedback about the first data packet, and the sender counts the number of times of acquiring the HARQ non-acknowledgement NACK feedback about the first data packet.
Optionally, when an RRC connection is established between the transmitting end and the receiving end, the transmitting end does not start the slot aggregation function.
Optionally, the transmitting end is a base station, and the receiving end is a terminal device.
The application also provides a time slot aggregation processing system based on feedback, which is used for realizing the time slot aggregation processing method based on feedback, and comprises the following steps:
the RRC connection establishment module is used for establishing RRC connection between the sending end and the receiving end;
the data packet transmission module is used for transmitting a first data packet to the receiving end by the transmitting end based on the RRC connection;
the HARQ feedback signaling receiving module is used for acquiring the residual data quantity related to the first data packet in the buffer and the number of times of received HARQ non-acknowledgement NACK feedback related to the first data packet when the sending end receives the HARQ non-acknowledgement NACK feedback;
the time slot aggregation parameter adjustment module is used for adjusting time slot aggregation parameters according to the residual data quantity in the buffer and the number of times of HARQ non-acknowledgement NACK feedback by the sending end and sending the adjusted time slot aggregation parameters to the receiving end;
and the adjusted data transmission module is used for transmitting data between the sending end and the receiving end based on the adjusted time slot aggregation parameters.
The application also provides a time slot aggregation processing device based on feedback, which comprises:
a processor;
a memory in which an executable program of the processor is stored;
wherein the processor is configured to perform the steps of any of the feedback-based slot aggregation processing methods described above via execution of the executable program.
The present application also provides a computer readable storage medium storing a program which, when executed by a processor, implements the steps of any of the feedback-based slot aggregation processing methods described above.
Compared with the prior art, the application has the following advantages and outstanding effects:
the time slot aggregation processing method, the system, the equipment and the medium based on feedback provided by the application are used for acquiring the HARQ signaling feedback condition of the current data packet received by the base station, and then adjusting the time slot aggregation parameters according to the residual data quantity of the first data packet and the number of times of HARQ unacknowledged NACK feedback in the buffer, so that the time slot aggregation related parameters are dynamically adjusted according to the actual condition of channel transmission, and the time slot aggregation is started as required, thereby avoiding the waste of control channel resources and the waste of service channel resources.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings.
Fig. 1 is a schematic flow chart of a time slot processing method disclosed in the prior art;
fig. 2 is a schematic diagram of an application scenario of a feedback-based timeslot aggregation processing method according to an embodiment of the present application;
fig. 3 is a schematic diagram of a feedback-based timeslot aggregation processing method according to an embodiment of the present application;
fig. 4 is a schematic diagram of a feedback-based slot aggregation processing method according to another embodiment of the present application;
fig. 5 is a schematic diagram of a feedback-based slot aggregation processing method according to another embodiment of the present application;
fig. 6 is a schematic structural diagram of a feedback-based timeslot aggregation processing system according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a feedback-based slot aggregation processing system according to another embodiment of the present application;
fig. 8 is a schematic structural diagram of a feedback-based slot aggregation processing system according to another embodiment of the present application;
fig. 9 is a schematic structural diagram of a feedback-based slot aggregation processing device according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of a computer readable storage medium according to an embodiment of the present application.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus a repetitive description thereof will be omitted.
As shown in fig. 1, the prior art discloses a slot aggregation processing method. The method comprises the following steps:
s110, manually configuring time slot aggregation parameters of the base station.
S120, the UE starts a random access flow and establishes service connection with the base station.
S130, the base station issues a slot aggregation parameter to the UE through an RRC (Radio Resource Control ) message.
And S140, the base station and the UE perform data transmission based on the time slot aggregation parameters.
In the prior art, whether to start the time slot aggregation function and the parameter values after starting the time slot aggregation function are configured in the network management in advance by manpower, and the parameter values cannot be changed according to the actual condition of transmission after configuration.
If the base station does not start the time slot aggregation function, when the channel environment where the UE is located is worse, the base station can possibly retransmit for a plurality of times, so that the waste of control channel resources is caused. If the base station starts the time slot aggregation function, when the channel environment where the UE is located is better, the repeated transmission of the time slot aggregation multiple times will cause the waste of the service channel resources. Therefore, the application provides a time slot aggregation processing method based on feedback, which realizes the adjustment of the time slot aggregation related parameters according to the actual transmission condition of the channel.
Referring to fig. 2 and 3 in combination, an embodiment of the present application discloses a feedback-based slot aggregation processing method, which includes the following steps:
s210, the RRC connection is established between the sending end and the receiving end. Specifically, during this step, the transmitting end 110 may be the unopened slot aggregation function. I.e. in a default state, the corresponding time slot aggregation repetition number is 1. In particular implementations, this step may include:
the receiving end 120 starts a random access procedure and transmits a random access request to the transmitting end 110.
The transmitting end 110 receives the random access request and transmits a random access response to the receiving end 120.
The receiving end 120 transmits an RRC connection request to the transmitting end 110.
The transmitting end 110 then receives the RRC connection request and transmits an RRC connection response to the receiving end 120. And
the transmitting end 110 establishes an RRC connection with the receiving end 120 based on the RRC connection response.
In this step, the receiving end 120 randomly accesses the cell node network where it is located. It should be noted that the specific implementation of this step is not limited by the present application, and may be implemented with reference to the prior art.
S220, the transmitting end transmits the first data packet to the receiving end based on the RRC connection. That is, the receiving end 120 accesses the network, establishes a service connection with the transmitting end 110, and starts to perform a service.
S230, when the transmitting end receives the HARQ non-acknowledgement NACK feedback, the transmitting end obtains the remaining data amount of the first data packet and the number of times of the received HARQ non-acknowledgement NACK feedback of the first data packet. Specifically, in this step, when the sender 110 receives HARQ non-acknowledgement NACK feedback (i.e., feedback of HARQ-NACK), and the remaining data amount of the first data packet in the buffer of the sender 110 is not zero, which indicates that the receiver 120 has not successfully unpacked the first data packet, the buffer of the base station has not completed sending the first data packet, and the buffer period has the data of the first data packet, the sender 110 continues to retransmit the first data packet to the receiver 120 until the sender 110 receives HARQ acknowledgement ACK feedback of the first data packet, and the sender 110 counts the number of times of obtaining HARQ non-acknowledgement NACK feedback of the first data packet.
In this step, the remaining data amount of the first packet in the buffer is mainly obtained as to whether it is zero.
And S240, the sending end adjusts the time slot aggregation parameter according to the residual data quantity in the buffer and the number of times of HARQ non-acknowledgement NACK feedback, and sends the adjusted time slot aggregation parameter to the receiving end. Specifically, in this step, the transmitting end 110 adjusts the time slot aggregation parameter according to the remaining data amount in the buffer, the number of times of the HARQ non-acknowledgement NACK feedback, and a preset mapping table. The preset mapping table stores the mapping relation between the number of times of the HARQ non-acknowledgement NACK feedback and the number of time slot aggregation repetition.
In this embodiment, in the preset mapping table, when the number of times of the HARQ unacknowledged NACK feedback is 1, the number of time slot aggregation repetitions is 2. When the number of times of the HARQ non-acknowledgement NACK feedback is 2 or 3, the number of time slot aggregation repetition is 4. And when the number of times of the HARQ non-acknowledgement NACK feedback is a positive integer greater than 3, the number of times of the time slot aggregation repetition is 8. Therefore, the number of times of HARQ non-acknowledgement NACK feedback and the number of time slot aggregation repetition form a matching relationship, so that the spectrum efficiency is ensured, and the waste of control channel resources is avoided.
Optionally, in an embodiment, as shown in fig. 4, the step S240 includes:
s241, when the remaining data amount of the first data packet in the buffer of the transmitting end is zero, the time slot aggregation repetition number is set to a first preset value. And
and S242, when the residual data quantity of the first data packet in the buffer of the sending end is not zero, the sending end determines the time slot aggregation repetition number matched with the NACK feedback number according to the HARQ non-acknowledgement NACK feedback number and the preset mapping table.
Specifically, when the sender 110 receives the HARQ non-acknowledgement NACK feedback and the amount of remaining data in the buffer of the sender 110 is zero, it indicates that the first data packet may be sent once, but the receiver 120 does not succeed in unpacking, and only the number of time slot aggregation repetitions needs to be set to a value capable of ensuring successful unpacking after multiple retransmissions.
Since the slot aggregation repetition number can be set to only one value of 2, 4 or 8. In this embodiment, the first preset value is set to 4. Therefore, the spectrum efficiency is ensured, and the waste of control channel resources is avoided. It should be noted that, the specific value of the first preset value is not limited in the present application, and may be set by those skilled in the art according to the need.
In other embodiments of the present application, the step S240 may also be: a decision maker of the transmitting end 110 decides the time slot aggregation parameter according to the remaining data amount in the buffer and the number of times of feedback of the HARQ non-acknowledgement NACK, and sends the adjusted time slot aggregation parameter to the receiving end 120.
S250, data transmission is carried out between the sending end and the receiving end based on the adjusted time slot aggregation parameters. In particular implementations, this step may include: the transmitting end 110 transmits the slot aggregation parameter to the receiving end 120 based on the RRC message. For example, the PDSCH-Config (physical downlink shared channel configuration information) and PUSCH-Config (physical uplink shared channel configuration information) fields in the RRC message may be used to issue PDSCH-Aggregation Factor (physical downlink shared channel aggregation factor) and PUSCH-Aggregation Factor (physical uplink shared channel aggregation factor) parameters.
Optionally, after the adjustment of the time slot aggregation parameter, if the transmitting end 110 receives the HARQ-NACK feedback again, the value of the time slot aggregation repetition number is set to 2*N. Where N is the current number of slot aggregation repetitions.
In another embodiment of the present application, another feedback-based slot aggregation processing method is disclosed. As shown in fig. 5, this embodiment further includes step S260 between step S220 and step S230, on the basis of the corresponding embodiment of fig. 3: and judging whether the transmitting end receives the HARQ non-acknowledgement NACK feedback.
In this embodiment, when the transmitting end does not receive the HARQ non-acknowledgement NACK feedback, the method further includes step S270: the transmitting end maintains the current time slot aggregation parameter. That is, receiving HARQ acknowledgement ACK feedback (HARQ-ACK feedback) for the first packet indicates that the receiving end 120 has successfully unpacked the first packet, while keeping the current slot aggregation parameter unchanged. If the transmitting end 110 does not start the timeslot aggregation function, the timeslot aggregation function is kept still.
Optionally, in an embodiment, the transmitting end 110 is a base station, and the receiving end 120 is a terminal device.
It should be noted that, all the embodiments disclosed in the present application may be freely combined, and the combined technical solution is also within the protection scope of the present application.
As shown in fig. 6, an embodiment of the present application further discloses a feedback-based time slot aggregation processing system 6, which includes:
the RRC connection establishment module 51 establishes an RRC connection between the transmitting end and the receiving end.
And a packet transmission module 52, wherein the transmitting end transmits the first packet to the receiving end based on the RRC connection.
The HARQ feedback signaling reception module 53, when the transmitting end receives HARQ non-acknowledgement NACK feedback, the transmitting end obtains the remaining data amount of the first data packet in the buffer and the number of times of receiving HARQ non-acknowledgement NACK feedback for the first data packet.
And a time slot aggregation parameter adjustment module 54, where the sending end adjusts a time slot aggregation parameter according to the remaining data amount in the buffer and the number of times of feedback of the HARQ non-acknowledgement NACK, and sends the adjusted time slot aggregation parameter to the receiving end.
And an adjusted data transmission module 55, for performing data transmission between the sending end and the receiving end based on the adjusted time slot aggregation parameter.
It will be appreciated that the feedback-based slot aggregation processing system of the present application also includes other existing functional modules that support the operation of the feedback-based slot aggregation processing system. The feedback-based slot aggregation processing system shown in fig. 6 is merely an example, and should not impose any limitation on the functionality and scope of use of embodiments of the present application.
The feedback-based timeslot aggregation processing system in this embodiment is used to implement the method of feedback-based timeslot aggregation processing described above, so for the specific implementation steps of the feedback-based timeslot aggregation processing system, reference may be made to the description of the method of feedback-based timeslot aggregation processing described above, which is not repeated here.
As shown in fig. 7, another embodiment of the present application further discloses a feedback-based timeslot aggregation processing system 7, which further includes, on the basis of including the RRC connection establishment module 51, the data packet transmission module 52, the HARQ feedback signaling receiving module 53, and the adjusted data transmission module 55 in the corresponding embodiment of fig. 6, the system further includes:
the first aggregation adjustment unit 541 sets the number of time slot aggregation repetitions to a first preset value when the remaining data amount of the first packet in the buffer of the transmitting side is zero. And
and a second aggregation adjustment unit 542, configured to determine, when the remaining data amount of the first data packet in the buffer of the transmitting end is not zero, a time slot aggregation repetition number matching the NACK feedback number according to the HARQ non-acknowledgement NACK feedback number and the preset mapping table.
As shown in fig. 8, another embodiment of the present application further discloses a feedback-based timeslot aggregation processing system 8, which further includes, on the basis of including the RRC connection establishment module 51, the data packet transmission module 52, the HARQ feedback signaling receiving module 53, the timeslot aggregation parameter adjustment module 54, and the adjusted data transmission module 55 in the corresponding embodiment of fig. 6, the system further includes:
the NACK feedback determination module 56 determines whether the transmitting end receives HARQ non-acknowledgement NACK feedback.
The ACK feedback module 57 maintains the current slot aggregation parameter when the sender does not receive the HARQ non-acknowledgement NACK feedback.
The embodiment of the application also discloses a time slot aggregation processing device based on feedback, which comprises a processor and a memory, wherein the memory stores an executable program of the processor; the processor is configured to perform the steps in the feedback-based slot aggregation processing method described above via execution of an executable program. Fig. 9 is a schematic structural diagram of a feedback-based slot aggregation processing device according to the present disclosure. An electronic device 600 according to this embodiment of the application is described below with reference to fig. 9. The electronic device 600 shown in fig. 9 is merely an example, and should not be construed as limiting the functionality and scope of use of embodiments of the present application.
As shown in fig. 9, the electronic device 600 is in the form of a general purpose computing device. Components of electronic device 600 may include, but are not limited to: at least one processing unit 610, at least one memory unit 620, a bus 630 connecting the different platform components (including memory unit 620 and processing unit 610), a display unit 640, etc.
Wherein the storage unit stores program code that is executable by the processing unit 610 such that the processing unit 610 performs the steps according to various exemplary embodiments of the present application described in the above section of the feedback-based slot aggregation processing method of the present specification. For example, the processing unit 610 may perform the steps as shown in fig. 2.
The storage unit 620 may include readable media in the form of volatile storage units, such as Random Access Memory (RAM) 6201 and/or cache memory unit 6202, and may further include Read Only Memory (ROM) 6203.
The storage unit 620 may also include a program/utility 6204 having a set (at least one) of program modules 6205, such program modules 6205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.
Bus 630 may be a local bus representing one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or using any of a variety of bus architectures.
The electronic device 600 may also communicate with one or more external devices 700 (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 600, and/or any device (e.g., router, modem, etc.) that enables the electronic device 600 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 650. Also, electronic device 600 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 660. The network adapter 660 may communicate with other modules of the electronic device 600 over the bus 630. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 600, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage platforms, and the like.
The application also discloses a computer readable storage medium for storing a program which when executed implements the steps in the feedback-based time slot aggregation processing method. In some possible embodiments, the aspects of the present application may also be implemented in the form of a program product comprising program code for causing a receiving end to carry out the steps according to the various exemplary embodiments of the application as described in the above description of the feedback-based slot aggregation processing method, when the program product is run on the receiving end.
As described above, the program of the computer readable storage medium in this embodiment, when executed, obtains the HARQ signaling feedback condition of the current data packet received by the base station, and then adjusts the time slot aggregation parameter according to the remaining data amount of the first data packet and the number of times of HARQ unacknowledged NACK feedback in the buffer, so as to dynamically adjust the time slot aggregation related parameter according to the actual condition of channel transmission, and start time slot aggregation as required, thereby avoiding waste of control channel resources and waste of traffic channel resources.
Fig. 10 is a schematic structural view of a computer-readable storage medium of the present application. Referring to fig. 10, a program product 800 for implementing the above-described method according to an embodiment of the present application is described, which may employ a portable compact disc read-only memory (CD-ROM) and include program code, and may be run on a receiving end, such as a personal computer. However, the program product of the present application is not limited thereto, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The computer readable storage medium may include a data signal propagated in baseband or as part of a carrier wave, with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable storage medium may also be any readable medium that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Program code for carrying out operations of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).
The time slot aggregation processing method, the system, the equipment and the medium based on feedback provided by the embodiment of the application are used for acquiring the HARQ signaling feedback condition of the current data packet received by the base station, then adjusting the time slot aggregation parameters according to the residual data quantity of the first data packet and the number of times of HARQ unacknowledged NACK feedback in the buffer, realizing dynamic adjustment of the time slot aggregation related parameters according to the actual condition of channel transmission, and starting the time slot aggregation as required, thereby avoiding the waste of control channel resources and the waste of service channel resources; and can determine the slot aggregation parameters suitable for themselves for different terminals.
The foregoing is a further detailed description of the application in connection with the preferred embodiments, and it is not intended that the application be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the application, and these should be considered to be within the scope of the application.
Claims (11)
1. The time slot aggregation processing method based on feedback is characterized by comprising the following steps:
establishing RRC connection between a transmitting end and a receiving end;
the sending end sends a first data packet to the receiving end based on the RRC connection;
when the sending end receives HARQ non-acknowledgement NACK feedback, the sending end acquires the residual data quantity related to the first data packet in a buffer and the number of times of received HARQ non-acknowledgement NACK feedback related to the first data packet;
the sending end adjusts the time slot aggregation parameters according to the residual data quantity in the buffer and the number of times of HARQ non-acknowledgement NACK feedback, and sends the adjusted time slot aggregation parameters to the receiving end;
the data transmission is carried out between the sending end and the receiving end based on the adjusted time slot aggregation parameters;
the sending end adjusts a time slot aggregation parameter according to the residual data volume in the buffer and the number of times of the HARQ non-acknowledgement NACK feedback, and the time slot aggregation parameter comprises the following steps:
the sending end adjusts a time slot aggregation parameter according to the residual data quantity in the buffer, the number of times of the HARQ non-acknowledgement NACK feedback and a preset mapping table; and the preset mapping table stores the mapping relation between the number of times of the HARQ non-acknowledgement NACK feedback and the number of time slot aggregation repetition.
2. The slot aggregation processing method of claim 1, wherein the method further comprises the steps of:
when the transmitting end does not receive the HARQ non-acknowledgement NACK feedback, the transmitting end maintains the current time slot aggregation parameter.
3. The slot aggregation processing method according to claim 1 or 2, wherein the transmitting end adjusts a slot aggregation parameter according to the remaining data amount in the buffer and the number of times of the HARQ non-acknowledgement NACK feedback, including:
and when the residual data quantity of the first data packet in the buffer of the transmitting end is zero, setting the time slot aggregation repetition number as a first preset value.
4. The slot aggregation processing method according to claim 1 or 2, wherein the transmitting end adjusts a slot aggregation parameter according to the remaining data amount in the buffer and the number of times of the HARQ non-acknowledgement NACK feedback, including:
when the remaining data amount of the first data packet in the buffer of the transmitting end is not zero, the transmitting end determines the corresponding time slot aggregation repetition number according to the number of times of the HARQ non-acknowledgement NACK feedback and the preset mapping table.
5. The method for processing slot aggregation as claimed in claim 1 or 2, wherein, in the preset mapping table, when the number of feedback times of the HARQ non-acknowledgement NACK is 1, the number of repetition times of slot aggregation is 2; when the number of times of the HARQ non-acknowledgement NACK feedback is 2 or 3, the time slot aggregation repetition number is 4; and when the number of times of the HARQ non-acknowledgement NACK feedback is a positive integer greater than 3, the time slot aggregation repetition number is 8.
6. The slot aggregation processing method according to claim 1 or 2, wherein when the transmitting end receives HARQ non-acknowledgement NACK feedback, the transmitting end obtains a remaining data amount in a buffer for the first data packet and the number of times of received HARQ non-acknowledgement NACK feedback for the first data packet, including:
and when the sender receives the HARQ non-acknowledgement NACK feedback and the residual data quantity about the first data packet in the buffer of the sender is not zero, the sender continuously retransmits the first data packet to the receiver until the sender receives the HARQ acknowledgement ACK feedback about the first data packet, and the sender counts the number of times of acquiring the HARQ non-acknowledgement NACK feedback about the first data packet.
7. The slot aggregation processing method according to claim 1 or 2, wherein when an RRC connection is established between a transmitting end and a receiving end, the transmitting end does not turn on a slot aggregation function.
8. The timeslot aggregation processing method of claim 1 or 2, where the transmitting end is a base station and the receiving end is a terminal device.
9. A feedback-based slot aggregation processing system for implementing the feedback-based slot aggregation processing method of claim 1, the system comprising:
the RRC connection establishment module is used for establishing RRC connection between the sending end and the receiving end;
the data packet transmission module is used for transmitting a first data packet to the receiving end by the transmitting end based on the RRC connection;
the HARQ feedback signaling receiving module is used for acquiring the residual data quantity related to the first data packet in the buffer and the number of times of received HARQ non-acknowledgement NACK feedback related to the first data packet when the sending end receives the HARQ non-acknowledgement NACK feedback;
the time slot aggregation parameter adjustment module is used for adjusting time slot aggregation parameters according to the residual data quantity in the buffer and the number of times of HARQ non-acknowledgement NACK feedback by the sending end and sending the adjusted time slot aggregation parameters to the receiving end; the sending end adjusts a time slot aggregation parameter according to the residual data volume in the buffer and the number of times of the HARQ non-acknowledgement NACK feedback, and the time slot aggregation parameter comprises the following steps: the sending end adjusts a time slot aggregation parameter according to the residual data quantity in the buffer, the number of times of the HARQ non-acknowledgement NACK feedback and a preset mapping table; the preset mapping table stores the mapping relation between the number of times of the HARQ non-acknowledgement NACK feedback and the time slot aggregation repetition number;
and the adjusted data transmission module is used for transmitting data between the sending end and the receiving end based on the adjusted time slot aggregation parameters.
10. A feedback-based slot aggregation processing device, comprising:
a processor;
a memory in which an executable program of the processor is stored;
wherein the processor is configured to perform the steps of the feedback-based slot aggregation processing method of any one of claims 1 to 8 via execution of the executable program.
11. A computer-readable storage medium storing a program, wherein the program when executed by a processor implements the steps of the feedback-based slot aggregation processing method of any one of claims 1 to 8.
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