CN113660067A - HARQ scheduling method and device for NR system - Google Patents
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- 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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Abstract
The invention has recorded HARQ scheduling method and apparatus used for NR system, through obtaining the first signal channel quality indicator CQI1 that the terminal UE of the previous time reported; scheduling newly transmitted data, wherein the physical layer uses RV0 redundancy version and stores each RV; receiving ACK information fed back by the UE; if the ACK information is negative feedback, reading a second channel quality indicator CQI2 reported by the current terminal UE; calculating the difference value of the two CQI, and judging whether the difference value exceeds a threshold value K; if the current modulation and coding strategy exceeds the preset value, the new modulation and coding strategy MCS and the resource allocation mode are used for recalculating each RV, and the RV0 redundancy version is used for scheduling newly transmitted data. In addition, the HARQ scheduling device for the NR system comprises a recording module and a scheduling module. When the channel quality is changed violently, new transmission is directly scheduled, delay caused by retransmission is avoided, and data transmission efficiency is improved; and selecting the RV version of the scheduling retransmission according to the counted average RV transmission times, ensuring that the optimal RV is scheduled for transmission, and effectively reducing the retransmission times.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a HARQ scheduling method and apparatus for an NR system, and an electronic device.
Background
This section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.
With the development of the mobile internet, more and more devices are connected to the mobile network, and new services and applications emerge endlessly. The explosion of mobile data traffic will present a serious challenge to the network. To meet the increasing demand of mobile traffic, a fifth Generation (5th Generation, 5G) mobile communication network has been developed. The data transmission rate of the 5G network is faster than the wired internet, 100 times faster than the previous 4G LTE cellular network, and has a lower network delay.
In a wireless communication system, a wireless Channel is a visual metaphor for a path between a transmitting end and a receiving end in wireless communication, that is, a frequency band (Channel) of a wireless Channel in general. Digital data channels can provide high-speed data transmission services to mobile users. In the 5G NR communication system, transmission is performed by using an Incremental Redundancy (IR) method for a data channel. An Incremental Redundancy (IR) scheme is one of HARQ combining schemes with soft combining, which can be generally divided into chase combining and incremental redundancy. In an Incremental Redundancy (IR) scheme, each retransmission does not need to be exactly the same as the original transmission. Instead, multiple sets of coded bits will be generated, each representing the same set of information bits. Whenever retransmission is required, a different set of coded bits is typically employed than in previous transmissions. The receiving end combines the retransmitted packet with previous transmission attempts of the same data packet. That is, Incremental Redundancy (IR) divides transmission data into a plurality of sets of coded bits, when retransmission is required, a set of coded bits different from the previous one is usually transmitted, which is called different Redundancy Versions (RVs), each RV carries different parity bits (parity bits), and a receiving end combines the retransmitted data and the previously transmitted data.
Retransmissions typically result in a reduction in the coding rate, since the retransmission may carry extra parity bits that were not included in the previous transmission. And with the increase of retransmission times, the receiving end can accumulate more parity check bits and improve the solution pair probability. Furthermore, each retransmission does not necessarily contain the same number of coded bits as the original transmission, but different modulation schemes may generally be used in different retransmissions.
When performing HARQ transmission, although the number of retransmissions increases to increase the success rate of demodulation at the receiving end, multiple retransmissions may cause transmission delay, which is intolerable in many scenarios. And because the content of each redundancy version in the HARQ transmission is different, the solution probability of the receiving end is also different. Therefore, how to select the HARQ scheduling policy is very important to reduce the time delay caused by retransmission on the premise of ensuring correct decoding at the receiving end.
Therefore, it is desirable to provide a HARQ scheduling method and apparatus for NR system with intelligently adjusting scheduling policy and less delay to optimize system resource allocation.
Interpretation of terms:
NR: new Radio, New air interface, fifth generation New Radio.
HARQ: hybrid Automatic Repeat Request (harq), a technique that combines forward error correction coding (fec) with Automatic Repeat Request (ARQ). The key words of HARQ are storage, request retransmission, combining demodulation. And the receiving end stores the received data under the condition of decoding failure, requests the transmitting end to retransmit the data, and combines the retransmitted data with the previously received data and then decodes the data.
RV: redundancy Version, used to implement Incremental Redundancy (IR) HARQ transmission, i.e. dividing Redundancy bits generated by an encoder into a plurality of groups, each RV defining a transmission start point, and using different RVs for first transmission and each HARQ retransmission respectively to implement gradual accumulation of the Redundancy bits and complete Incremental Redundancy HARQ operation.
And ACK: acknowledge character. In data communication, the receiving end sends a transmission control character to the sending end, which indicates that the sent data is confirmed to be received without errors.
MCS: modulation and Coding Scheme, Modulation and Coding strategy, to implement the configuration of 802.11n radio frequency rate, each MCS index value corresponds to the physical transmission rate under a set of parameters, and MCS is used to indicate the Modulation mode and Coding mode of data.
Disclosure of Invention
In order to solve the above problems, the present invention provides a HARQ scheduling method and apparatus for an NR system, which can optimize the selection of redundancy versions during transmission, reduce the number of HARQ retransmissions, and achieve the effects of improving data transmission efficiency and reducing delay.
In order to achieve the above object, the present invention provides an HARQ scheduling method for an NR system, comprising the steps of:
s1: acquiring a first channel quality indicator CQI1 reported by a terminal UE at the previous time;
s2: scheduling newly transmitted data, wherein the physical layer uses RV0 redundancy version and stores each RV;
s3: receiving ACK information fed back by the UE;
s4: if the ACK information is negative feedback, reading a second channel quality indicator CQI2 reported by the current terminal UE;
s5: calculating the difference value of the two CQI, and judging whether the difference value exceeds a threshold value K;
s6: if the current modulation and coding strategy exceeds the preset value, the new modulation and coding strategy MCS and the resource allocation mode are used for recalculating each RV, and the RV0 redundancy version is used for scheduling newly transmitted data.
Optionally, step S1 is preceded by the following steps:
step S0-1: after each HARQ transmission is completed, the average transmission times of each redundancy version RV are recorded.
Optionally, step S3 is followed by the following steps:
step 3-1: if the ACK information is positive feedback, the process returns to step S2.
Optionally, if the difference does not exceed the threshold K, step S7 is executed: and selecting the non-0 RV redundancy version with smaller average transmission times for carrying out retransmission scheduling.
Optionally, the threshold K value is 2.
Alternatively, in step S7, if the average number of transmissions is the same, the retransmission redundancy versions RV are scheduled in the order of version 2,3, and 1, and the physical layer uses the stored data.
In addition, the present invention also provides an HARQ scheduling apparatus for an NR system, including:
the recording module is used for recording a first channel quality indicator CQI1 reported by the terminal UE at the previous time, recording a second channel quality indicator CQI2 reported by the current terminal UE, and recording the average transmission times of each redundancy version RV after the HARQ transmission is finished each time;
the scheduling module is used for scheduling newly transmitted data, the physical layer uses RV0 redundancy version, and each RV is stored; receiving ACK information fed back by the UE, and reading a second channel quality indicator CQI2 reported by the current terminal UE if the ACK information is negative feedback; and calculating the difference value of the two CQI, judging whether the difference value exceeds a threshold value K, if so, recalculating each RV by using a new modulation and coding strategy MCS and a resource allocation mode, and scheduling newly transmitted data by using an RV0 redundancy version.
Optionally, if the scheduling module determines that the difference does not exceed a threshold K, the scheduling module selects a non-0 RV redundancy version with a smaller average transmission frequency to perform retransmission scheduling, where the threshold K is 2.
Optionally, if the average transmission times are the same, the scheduling module schedules the retransmission redundancy version RV according to the sequence of versions 2,3, and 1, and the physical layer uses the stored data.
In addition, the present invention also provides an electronic device including:
a memory for storing a computer program;
a processor for executing the computer program stored in the memory, and when the computer program is executed, implementing the above-mentioned HARQ scheduling method for the NR system.
The invention has the advantages and beneficial effects that: compared with the situation that the HARQ transmission scheduling in the existing NR system has the delay problem, the invention provides the HARQ scheduling method and the device for the NR system. The channel quality is taken into consideration when the retransmission is scheduled, and when the channel quality is changed violently (the CQI interpolation is greater than the threshold K), the new transmission is directly scheduled according to the channel state, so that the delay caused by the retransmission is avoided, and the data transmission efficiency is improved. When the scheduling retransmission is selected, the RV version of the scheduling retransmission is selected according to the counted RV average transmission times, the optimal RV is guaranteed to be scheduled for transmission, and the retransmission times are effectively reduced.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only part of the descriptions of some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 schematically shows a flowchart of an HARQ scheduling method for an NR system in an embodiment;
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is understood that these embodiments are given solely for the purpose of enabling those skilled in the art to better understand and to practice the invention, and are not intended to limit the scope of the invention in any way. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As will be appreciated by one skilled in the art, embodiments of the present invention may be embodied as a method, system, apparatus, device, or computer program product. Accordingly, the present disclosure may be embodied in the form of: entirely hardware, entirely software (including firmware, resident software, micro-code, etc.), or a combination of hardware and software.
In an embodiment, the present invention provides an HARQ scheduling method for an NR system, which is applied to a 5G communication system. As shown in fig. 1, in scheduling transmission, the present invention refers to a channel quality indicator CQI reported by a receiving end, determines a retransmission scheme according to the CQI, and intelligently adjusts an HARQ scheduling policy. When the channel quality changes violently, new transmission is directly scheduled according to the channel state, delay caused by retransmission is avoided, and data transmission efficiency is improved. And when the RV version of retransmission is scheduled, the RV version is selected according to the counted average transmission times of the RV, so that the optimal RV is scheduled for transmission, and the retransmission times are effectively reduced.
In this embodiment, there is provided a HARQ scheduling method for an NR system, including the steps of:
s1: acquiring a first channel quality indicator CQI1 reported by a previous terminal UE (User Equipment/User terminal);
s2: scheduling newly transmitted data, wherein the physical layer uses RV0 redundancy version and stores each RV;
s3: receiving ACK information fed back by the UE;
s4: if the ACK information is negative feedback (NACK), reading a second channel quality indicator CQI2 reported by the current terminal UE;
s5: calculating the difference value (| CQI1-CQI2|) of the two CQI, and judging whether the difference value exceeds a threshold value K;
s6: if the current modulation and coding strategy exceeds the preset value, the new modulation and coding strategy MCS and the resource allocation mode are used for recalculating each RV, and the RV0 redundancy version is used for scheduling newly transmitted data.
The CQI (Channel Quality Indicator) represents the Quality of the current Channel, and corresponds to the signal-to-noise ratio of the Channel, and the value range is 0 to 31. When the CQI value is 0, the channel quality is the worst; when the CQI takes the value of 31, the channel quality is the best. The common value is 12-24. The CQI for a given channel depends on the transmission (modulation) scheme used by the communication system.
HARQ operation corresponds to 4 different redundancy versions, RV0, 1,2,3, respectively. The HARQ redundancy versions RV values are different and the starting position for extracting the bit stream from the circulator will be different.
ACK information nack (negative acknowledgement) fed back by the UE is a negative feedback, and the receiving side notifies the transmitting side only when it does not receive data. The receiver regularly informs all the unreceived packet serial numbers to the sender through a feedback message for retransmission. Therefore, the frequency and bandwidth occupation of the feedback packet can be reduced, and meanwhile, the sender can be informed to perform packet loss retransmission in a timely manner.
Preferably, step S1 is preceded by the following steps:
step S0-1: after each HARQ transmission is completed, the average transmission times of each redundancy version RV are recorded.
Preferably, the following process is further included after step S3:
step 3-1: if the ACK information is positive feedback, returning to step S2, scheduling newly transmitted data, using RV0 by the physical layer, and saving each RV.
Preferably, the threshold K value is 2. When the difference | CQI1-CQI2| exceeds the threshold value 2, the channel quality can be considered to be changed drastically, and new transmission is directly scheduled, namely new modulation and coding strategies MCS and resource allocation modes are used, the RVs are recalculated, and the RV0 redundancy version is used for scheduling new transmission data. Therefore, time delay caused by retransmission is avoided, and data transmission efficiency is improved.
Preferably, if the difference | CQI1-CQI2| does not exceed the threshold K, step S7 is performed: and selecting the non-0 RV redundancy version with smaller average transmission times for carrying out retransmission scheduling. When the | CQI1-CQI2| is less than or equal to 2, the channel quality can be considered to be stable, and retransmission can be selected. At this time, when the RV version of retransmission is scheduled, the RV version is selected according to the counted average RV transmission times, the optimal RV is guaranteed to be scheduled for transmission, and the retransmission times are effectively reduced.
Preferably, in step S7, if the average number of transmissions is the same, the retransmission redundancy versions RV are scheduled in the order of version 2,3, and 1, and the physical layer uses the stored data.
As shown in fig. 1, the HARQ scheduling method for the NR system provided in this embodiment has the following specific operation flows:
step S0-1: after each HARQ transmission is completed, recording the average transmission times of RV of each redundancy version;
s1: acquiring a first channel quality indicator CQI1 reported by a terminal UE at the previous time;
s2: scheduling newly transmitted data, wherein the physical layer uses RV0 redundancy version and stores each RV;
s3: receiving ACK information fed back by the UE;
step 3-1: if the ACK information is positive feedback, returning to step S2, scheduling newly transmitted data, using RV0 by the physical layer, and saving each RV.
S4: if the ACK information is negative feedback NACK, reading a second channel quality indicator CQI2 reported by the current terminal UE;
s5: calculating the difference value (| CQI1-CQI2|) of the two CQI, and judging whether the difference value exceeds a threshold value K;
s6: if the difference | CQI1-CQI2| exceeds the threshold K, recalculating each RV by using a new modulation and coding strategy MCS and a resource allocation mode, and scheduling newly transmitted data by using an RV0 redundancy version, namely, skipping to the step S2;
s7: if the difference value | CQI1-CQI2| does not exceed the threshold value K, the non-0 RV redundancy version with smaller average transmission times is preferentially selected for carrying out retransmission scheduling; when the average transmission times are the same, the retransmission redundancy version RV is scheduled according to the sequence of the version 2, the version 3 and the version 1, namely the retransmission redundancy version RV is scheduled according to the sequence of the redundancy version RV2, the redundancy version RV3 and the redundancy version RV1, and the physical layer uses the stored data.
In addition, in an embodiment, the present invention further provides an HARQ scheduling apparatus for an NR system, the apparatus includes, but is not limited to, a recording module and a scheduling module, wherein:
the recording module is used for recording a first channel quality indicator CQI1 reported by the terminal UE at the previous time, recording a second channel quality indicator CQI2 reported by the current terminal UE, and recording the average transmission times of each redundancy version RV after the HARQ transmission is finished each time;
the scheduling module is used for scheduling newly transmitted data, the physical layer uses RV0 redundancy version, and each RV is stored; receiving ACK information fed back by the UE, and reading a second channel quality indicator CQI2 reported by the current terminal UE if the ACK information is negative feedback; and calculating the difference value of the two CQI, judging whether the difference value exceeds a threshold value K, if so, recalculating each RV by using a new modulation and coding strategy MCS and a resource allocation mode, and scheduling newly transmitted data by using an RV0 redundancy version.
Preferably, if the scheduling module determines that the difference does not exceed the threshold K, the scheduling module selects the non-0 RV redundancy version with the smaller average transmission frequency to perform retransmission scheduling, where the threshold K is 2. If the average transmission times are the same, the scheduling module schedules the retransmission redundancy version RV according to the sequence of the version 2, the version 3 and the version 1, and the physical layer uses the stored data.
Furthermore, in an embodiment, the present invention also provides an electronic device, including:
a memory for storing a computer program;
a processor for executing the computer program stored in the memory, and when the computer program is executed, implementing the HARQ scheduling method for the NR system described above.
The electronic device of this embodiment may be an integrated circuit board, a PC (Personal Computer), or a portable Computer or other electronic device with a processor.
The memory may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM) and/or cache memory. The processor executes various functional applications and data processing by executing a computer program stored in the memory, and in particular, the processor may execute the computer program stored in the memory, and when the computer program is executed, at least the following instructions are executed:
s1: acquiring a first channel quality indicator CQI1 reported by a terminal UE at the previous time;
s2: scheduling newly transmitted data, wherein the physical layer uses RV0 redundancy version and stores each RV;
s3: receiving ACK information fed back by the UE;
s4: if the ACK information is negative feedback, reading a second channel quality indicator CQI2 reported by the current terminal UE;
s5: calculating the difference value of the two CQI, and judging whether the difference value exceeds a threshold value K;
s6: if the current modulation and coding strategy exceeds the preset value, the new modulation and coding strategy MCS and the resource allocation mode are used for recalculating each RV, and the RV0 redundancy version is used for scheduling newly transmitted data.
Moreover, while the operations of the method of the invention are depicted in the drawings in a particular order, this does not require or imply that the operations must be performed in this particular order, or that all of the illustrated operations must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions.
While the spirit and principles of the invention have been described with reference to the above specific embodiments, it is to be understood that the invention is not limited to the specific embodiments disclosed, nor is the division of the aspects, which is for convenience only as the features in these aspects cannot be combined to advantage. The invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (10)
1. An HARQ scheduling method for an NR system, comprising the steps of:
s1: acquiring a first channel quality indicator CQI1 reported by a terminal UE at the previous time;
s2: scheduling newly transmitted data, wherein the physical layer uses RV0 redundancy versions and stores each RV redundancy version;
s3: receiving ACK information fed back by the UE;
s4: if the ACK information is negative feedback, reading a second channel quality indicator CQI2 reported by the current terminal UE;
s5: calculating the difference value of the two CQI, and judging whether the difference value exceeds a threshold value K;
s6: if the current modulation and coding strategy exceeds the preset value, the new modulation and coding strategy MCS and the resource allocation mode are used for recalculating each RV, and the RV0 redundancy version is used for scheduling newly transmitted data.
2. The HARQ scheduling method for NR system of claim 1, wherein step S1 is preceded by the following steps:
step S0-1: after each HARQ transmission is completed, the average transmission times of each redundancy version RV are recorded.
3. The HARQ scheduling method for NR system of claim 1, further comprising the following steps after step S3:
step 3-1: if the ACK information is positive feedback, the process returns to step S2.
4. The method for scheduling HARQ for NR system of claim 1, wherein if the difference does not exceed the threshold K, performing step S7: and selecting the non-0 RV redundancy version with smaller average transmission times for carrying out retransmission scheduling.
5. The HARQ scheduling method for NR system of claim 1, wherein the threshold K value is 2.
6. The method of claim 4, wherein in step S7, if the average transmission times are the same, the retransmission redundancy version RV is scheduled in the order of version 2,3 and 1, and the physical layer uses the stored data.
7. An HARQ scheduling apparatus for an NR system, comprising:
the recording module is used for recording a first channel quality indicator CQI1 reported by the terminal UE at the previous time, recording a second channel quality indicator CQI2 reported by the current terminal UE, and recording the average transmission times of each redundancy version RV after the HARQ transmission is finished each time;
the scheduling module is used for scheduling newly transmitted data, the physical layer uses RV0 redundancy version, and each RV is stored; receiving ACK information fed back by the UE, and reading a second channel quality indicator CQI2 reported by the current terminal UE if the ACK information is negative feedback; and calculating the difference value of the two CQI, judging whether the difference value exceeds a threshold value K, if so, recalculating each RV by using a new modulation and coding strategy MCS and a resource allocation mode, and scheduling newly transmitted data by using an RV0 redundancy version.
8. The apparatus of claim 7, wherein if the scheduling module determines that the difference does not exceed a threshold K, the scheduling module selects a non-0 RV redundancy version with a smaller average transmission frequency for retransmission scheduling, wherein the threshold K is 2.
9. The apparatus of claim 8, wherein if the average number of transmissions is the same, the scheduling module schedules retransmission redundancy version RV according to the sequence of version 2,3, and 1, and the physical layer uses the stored data.
10. An electronic device, comprising:
a memory for storing a computer program;
a processor for executing a computer program stored in a memory, and when the computer program is executed, implementing the HARQ scheduling method for the NR system of any of claims 1 to 6.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114172623A (en) * | 2021-12-17 | 2022-03-11 | 深圳市领创星通科技有限公司 | Retransmission control method, device, equipment and storage medium of data message |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101174931A (en) * | 2006-10-30 | 2008-05-07 | 华为技术有限公司 | Retransmission type selection method, corresponding transmitting equipment, receiving equipment and system |
| CN102340385A (en) * | 2010-07-19 | 2012-02-01 | 中兴通讯股份有限公司 | Hybrid automatic repeat request (HARQ) processing method and apparatus thereof |
| WO2015043233A1 (en) * | 2013-09-25 | 2015-04-02 | 株式会社日立制作所 | Base station device for supporting data transmission based on high-order modulation, and data communication method |
| CN108270525A (en) * | 2016-12-30 | 2018-07-10 | 华为技术有限公司 | Redundancy versions transmission method and equipment |
| CN112398574A (en) * | 2019-08-16 | 2021-02-23 | 大唐移动通信设备有限公司 | Transmission scheduling method and equipment |
-
2021
- 2021-08-27 CN CN202111000004.6A patent/CN113660067A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101174931A (en) * | 2006-10-30 | 2008-05-07 | 华为技术有限公司 | Retransmission type selection method, corresponding transmitting equipment, receiving equipment and system |
| CN102340385A (en) * | 2010-07-19 | 2012-02-01 | 中兴通讯股份有限公司 | Hybrid automatic repeat request (HARQ) processing method and apparatus thereof |
| WO2015043233A1 (en) * | 2013-09-25 | 2015-04-02 | 株式会社日立制作所 | Base station device for supporting data transmission based on high-order modulation, and data communication method |
| CN108270525A (en) * | 2016-12-30 | 2018-07-10 | 华为技术有限公司 | Redundancy versions transmission method and equipment |
| CN112398574A (en) * | 2019-08-16 | 2021-02-23 | 大唐移动通信设备有限公司 | Transmission scheduling method and equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114172623A (en) * | 2021-12-17 | 2022-03-11 | 深圳市领创星通科技有限公司 | Retransmission control method, device, equipment and storage medium of data message |
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