CN116015562A - Retransmission data control method based on wireless channel quality - Google Patents

Retransmission data control method based on wireless channel quality Download PDF

Info

Publication number
CN116015562A
CN116015562A CN202211691555.6A CN202211691555A CN116015562A CN 116015562 A CN116015562 A CN 116015562A CN 202211691555 A CN202211691555 A CN 202211691555A CN 116015562 A CN116015562 A CN 116015562A
Authority
CN
China
Prior art keywords
retransmission
control
threshold
retransmissions
mcs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211691555.6A
Other languages
Chinese (zh)
Inventor
孙腾杰
李华栋
任恩贤
周国勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Jiaxian Communication Technology Co ltd
Original Assignee
Shenzhen Jiaxian Communication Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Jiaxian Communication Technology Co ltd filed Critical Shenzhen Jiaxian Communication Technology Co ltd
Priority to CN202211691555.6A priority Critical patent/CN116015562A/en
Publication of CN116015562A publication Critical patent/CN116015562A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Mobile Radio Communication Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

本发明涉及无线通信技术领域,具体涉及一种基于无线信道质量的重传数据控制方法,设置参数重传控制率,重传次数控制门限,重传控制抬升步长,重传控制降低步长,重传次数降低门限以及重传次数抬升门限;进而通过判断定时器内MCS是否处于稳态与设置的参数共同调整最大重传次数,即能够根据信道质量好坏进行最大重传次数的控制,实现最大重传次数的自适应调整,因此,本发明通过自适应调整最大重传次数能够达到减少空口资源的浪费的同时保证数据传输的有效性。

Figure 202211691555

The present invention relates to the technical field of wireless communication, in particular to a retransmission data control method based on wireless channel quality, setting parameter retransmission control rate, retransmission times control threshold, retransmission control raising step size, retransmission control decreasing step size, The number of retransmissions reduces the threshold and the number of retransmissions raises the threshold; and then adjusts the maximum number of retransmissions by judging whether the MCS in the timer is in a steady state and setting parameters, that is, the maximum number of retransmissions can be controlled according to the quality of the channel to achieve Adaptive adjustment of the maximum number of retransmissions. Therefore, the present invention can reduce the waste of air interface resources and ensure the effectiveness of data transmission by adaptively adjusting the maximum number of retransmissions.

Figure 202211691555

Description

一种基于无线信道质量的重传数据控制方法A retransmission data control method based on wireless channel quality

技术领域technical field

本发明涉及无线通信技术领域,具体涉及一种基于无线信道质量的重传数据控制方法。The invention relates to the technical field of wireless communication, in particular to a method for controlling retransmission data based on wireless channel quality.

背景技术Background technique

在5G通信中,目前主要使用两段频段,分别为FR1(sub6Ghz)和FR2(毫米波),不论哪一种在数据丢失出错方面都是主要由MAC(MediumAccessControl,媒体访问控制)层的harq(hybridautomaticrepeatrequest,混合自动重传请求)机制进行处理,即通过带有软合并的harq,将接收到的错误数据包保存在一个harqbuffer中,并与后续接收到的重传数据包进行合并,得到更可靠的数据包,然后对数据包进行解码,如果还是失败,则重复重传,再进行软合并。In 5G communication, two frequency bands are mainly used at present, namely FR1 (sub6Ghz) and FR2 (millimeter wave), no matter which one is mainly controlled by the MAC (MediumAccessControl, media access control) layer harq ( Hybridautomaticrepeatrequest (hybrid automatic repeat request) mechanism for processing, that is, through harq with soft merge, the received error data packet is stored in a harqbuffer, and is merged with the subsequent received retransmission data packet to obtain more reliable , and then decode the data packet, if it still fails, repeat the retransmission, and then perform soft merging.

调度用户DCI(DownlinkControlInformation,下行控制信息)中,会携带NDI(NewDataIndicator,新数据指示),指示同一个harq进程ID下当前是新传(NDI翻转)还是重传(NDI没有翻转);UL重传使用不同的RV(redundantversion,冗余版本),并且RV由DCI0确定。Scheduling user DCI (DownlinkControlInformation, downlink control information) will carry NDI (NewDataIndicator, new data indication), indicating whether the same harq process ID is currently a new transmission (NDI reversal) or retransmission (NDI is not reversed); UL retransmission Different RVs (redundantversion, redundancy version) are used, and the RV is determined by DCI0.

目前,不论是FR1还是FR2,一般厂商都可以自行设置最大下行和上行重传次数,不论信道质量的好坏,如果设置的最大重传次数都失败即重传失败了,在信道条件差的时候,例如MCS(Modulationandcodingscheme,调制与编码方案)已经掉0,最后几次重传业务依然有大部分失败,特别是对于此时正在做大流量业务时,RB占用也会比较大,而且重传具有更高调度优先级,最后的几次重传相当于占用了大量空口资源而且还是无效调度,造成了大量空口资源浪费;当MCS稳定在其他阶数时(MCS>0),可能偶尔出现4次都重传,即数据传输还是失败,此时的空口的数据传输有效性就得不到保证。基于此,最大重传次数的设置并未考虑信道质量的好坏,在造成空口资源的浪费的同时无法保证数据传输的有效性,因此,亟需要一种技术能够根据信道质量好坏进行最大重传次数的控制,达到减少空口资源的浪费和保证数据传输的有效性的目的。At present, whether it is FR1 or FR2, general manufacturers can set the maximum number of downlink and uplink retransmissions by themselves. Regardless of the quality of the channel, if the set maximum number of retransmissions fails, the retransmission will fail. When the channel condition is poor , For example, MCS (Modulation and coding scheme, modulation and coding scheme) has dropped to 0, and most of the last few retransmission services still failed, especially when doing large traffic services at this time, the RB occupation will be relatively large, and retransmission has Higher scheduling priority, the last few retransmissions are equivalent to occupying a lot of air interface resources and still invalid scheduling, resulting in a lot of waste of air interface resources; when the MCS is stable at other orders (MCS>0), it may occasionally occur 4 times All retransmissions, that is, the data transmission still fails, and the validity of the data transmission of the air interface at this time cannot be guaranteed. Based on this, the setting of the maximum number of retransmissions does not take into account the quality of the channel, which causes a waste of air interface resources and cannot guarantee the effectiveness of data transmission. The number of transmissions can be controlled to reduce the waste of air interface resources and ensure the effectiveness of data transmission.

发明内容Contents of the invention

为了解决上述最大重传次数的设置并未考虑信道质量的好坏,在造成空口资源的浪费的同时无法保证数据传输的有效性的问题,本发明的目的在于提供一种基于无线信道质量的重传数据控制方法,所采用的技术方案具体如下:In order to solve the problem that the above-mentioned setting of the maximum number of retransmissions does not take into account the quality of the channel, resulting in a waste of air interface resources and the effectiveness of data transmission cannot be guaranteed, the purpose of the present invention is to provide a retransmission based on wireless channel quality Data transmission control method, the adopted technical scheme is as follows:

设置重传控制率,重传次数控制门限,重传控制抬升步长,重传控制降低步长,重传次数降低门限以及重传次数抬升门限;Set the retransmission control rate, retransmission times control threshold, retransmission control increase step size, retransmission control decrease step size, retransmission times reduction threshold and retransmission times increase threshold;

判断定时器内MCS是否处于稳态;Determine whether the MCS in the timer is in a steady state;

当MCS处于稳态时,开启最大重传次数测量,并记录当前的重传控制率和MCS;When the MCS is in a steady state, enable the measurement of the maximum number of retransmissions, and record the current retransmission control rate and MCS;

若当前的重传控制率大于所述重传次数控制门限,并且MCS大于0时,则重传次数调整步长的取值加上重传控制抬升步长;若MCS等于0时,则重传次数调整步长的取值减去重传控制降低步长;If the current retransmission control rate is greater than the retransmission times control threshold and the MCS is greater than 0, then the value of the retransmission times adjustment step plus the retransmission control increase step; if the MCS is equal to 0, retransmit The value of the times adjustment step minus the retransmission control reduction step;

若当前的重传控制率小于等于所述重传次数控制门限,则重传次数调整步长的取值减去重传控制降低步长;以此类推,当重传次数调整步长的取值达到重传次数降低门限时,减少设定次数的最大重传次数;当重传次数调整步长的取值达到重传次数抬升门限时,增加设定次数的最大重传次数;If the current retransmission control rate is less than or equal to the retransmission times control threshold, the value of the retransmission times adjustment step size is subtracted from the retransmission control step size reduction; and so on, when the retransmission times adjustment step size value When the threshold for reducing the number of retransmissions is reached, the maximum number of retransmissions for the set number is reduced; when the value of the adjustment step of the number of retransmissions reaches the threshold for increasing the number of retransmissions, the maximum number of retransmissions for the set number is increased;

当MCS不处于稳态时,则定时器清0,重传次数测量清0,重传次数调整步长清0。When the MCS is not in a steady state, the timer is cleared to 0, the retransmission times measurement is cleared to 0, and the retransmission times adjustment step is cleared to 0.

优选的,所述重传控制率为一定数量包内重传次数为最大重传次数时的次数占比。Preferably, the retransmission control rate is the proportion of retransmissions in a certain number of packets when the number of retransmissions is the maximum number of retransmissions.

优选的,所述重传次数控制门限,重传控制抬升步长,重传控制降低步长,重传次数降低门限以及重传次数抬升门限均可根据厂商自行配置。Preferably, the retransmission times control threshold, the retransmission control increase step size, the retransmission control decrease step size, the retransmission times reduction threshold and the retransmission times increase threshold can all be configured according to the manufacturer.

本发明实施例至少具有如下有益效果:Embodiments of the present invention have at least the following beneficial effects:

本发明通过设置参数重传控制率,重传次数控制门限,重传控制抬升步长,重传控制降低步长,重传次数降低门限以及重传次数抬升门限,利用设置的参数与信道质量共同调整最大重传次数,使得最大重传次数能够根据信道质量进行自适应调节,在FR1和FR2多用户场景下或者信号质量差的场景下对数据传输提供了有效保证,保证数据传输的有效性的同时,也节省了空口的资源使用,能够使调度资源充分利用,具体地,在信道质量极差时(MCS=0),节省空口资源占用,使调度资源充分利用;在信道质量较好时(MCS≥1),在不浪费空口资源的前提下保证数据传输的有效性。The present invention sets the retransmission control rate, the retransmission times control threshold, the retransmission control raising step size, the retransmission control reducing step size, the retransmission times reduction threshold and the retransmission times raising threshold. Adjust the maximum number of retransmissions so that the maximum number of retransmissions can be adaptively adjusted according to the channel quality, which provides an effective guarantee for data transmission in FR1 and FR2 multi-user scenarios or poor signal quality scenarios, ensuring the effectiveness of data transmission At the same time, the resource usage of the air interface is also saved, and the scheduling resources can be fully utilized. Specifically, when the channel quality is extremely poor (MCS=0), the air interface resource occupation is saved, and the scheduling resources are fully utilized; when the channel quality is good ( MCS≥1), ensuring the validity of data transmission without wasting air interface resources.

附图说明Description of drawings

为了更清楚地说明本发明实施例或现有技术中的技术方案和优点,下面将对实施例或现有技术描述中所需要使用的附图作简单的介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其它附图。In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present invention or in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Apparently, the appended The drawings are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

图1为本发明的一种基于无线信道质量的重传数据控制方法实施例的流程图。FIG. 1 is a flow chart of an embodiment of a method for controlling retransmission data based on wireless channel quality in the present invention.

具体实施方式Detailed ways

为了更进一步阐述本发明为达成预定发明目的所采取的技术手段及功效,以下结合附图及较佳实施例,对依据本发明提出的方案,其具体实施方式、结构、特征及其功效,详细说明如下。在下述说明中,不同的“一个实施例”或“另一个实施例”指的不一定是同一实施例。此外,一或多个实施例中的特定特征、结构或特点可由任何合适形式组合。In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, below in conjunction with the accompanying drawings and preferred embodiments, the solution proposed according to the present invention, its specific implementation, structure, features and effects are described in detail described as follows. In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures or characteristics of one or more embodiments may be combined in any suitable manner.

除非另有定义,本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention.

请参阅图1,其示出了本发明一个实施例提供的一种基于无线信道质量的重传数据控制方法的流程图,该方法包括以下步骤:Please refer to FIG. 1, which shows a flow chart of a method for controlling retransmission data based on wireless channel quality provided by an embodiment of the present invention. The method includes the following steps:

步骤1,设置重传控制率,重传次数控制门限,重传控制抬升步长,重传控制降低步长,重传次数降低门限以及重传次数抬升门限。Step 1. Set the retransmission control rate, the retransmission times control threshold, the retransmission control increase step size, the retransmission control decrease step size, the retransmission times reduction threshold and the retransmission times increase threshold.

所述重传控制率(retransmissionscontrolsradtio,RCR)为一定数量包内重传次数为最大重传次数时的次数占比。例如,目前最大重传次数配置为n次,100包内重传n次的次数占比m%,则重传控制率为m%;重传控制率为UE(userequipment,用户设备)级别的参数。The retransmission control rate (retransmissions controls radtio, RCR) is the proportion of retransmissions in a certain number of packets when the number of retransmissions is the maximum number of retransmissions. For example, currently the maximum number of retransmissions is configured as n times, and the number of retransmissions n times within 100 packets accounts for m%, then the retransmission control rate is m%; the retransmission control rate is a parameter at the UE (user equipment, user equipment) level .

重传次数控制门限(retransmissionscontrolsthreshold,RCH)设置为调整重传次数的门限值,类似Bler门限,重传次数控制门限可根据厂商自行配置,达到重传次数控制门限后进行调整重传次数调整步长;RCH为基站级别的参数。The retransmissions controls threshold (RCH) is set to adjust the threshold value of the retransmissions, similar to the Bler threshold, the retransmissions control threshold can be configured according to the manufacturer, and the retransmissions adjustment step is adjusted after the retransmissions control threshold is reached. Long; RCH is a parameter at the base station level.

优选的,所述重传次数控制门限,重传控制抬升步长,重传控制降低步长,重传次数降低门限以及重传次数抬升门限均可根据厂商自行配置。Preferably, the retransmission times control threshold, the retransmission control increase step size, the retransmission control decrease step size, the retransmission times reduction threshold and the retransmission times increase threshold can all be configured according to the manufacturer.

本实施例中,基站配置4个小区,每个小区上下行最大重传次数基站设置为4次,支持256Qamtable,上下行Bler门限设置为10%,重传次数控制门限设置为5%,重传控制抬升步长为1,重传控制降低步长为1,重传次数降低门限为-5,重传次数抬升门限为5,每个小区分别有2个UE(userequipment,用户设备),两个UE接入分别处于中点、极差点,小区1的两个UE标识分别为61,125。作为其他实施方式,实施者可根据实际情况设置重传次数控制门限,重传控制抬升步长,重传控制降低步长,重传次数降低门限以及重传次数抬升门限的取值。In this embodiment, the base station is configured with 4 cells, and the maximum uplink and downlink retransmission times of each cell is set to 4 times by the base station, which supports 256Qamtable. The control raising step is 1, the retransmission control decreasing step is 1, the retransmission times reduction threshold is -5, the retransmission times raising threshold is 5, each cell has 2 UEs (user equipment, user equipment), two The UE access is at the middle point and the extreme point respectively, and the two UE identities of the cell 1 are 61 and 125 respectively. As other implementation modes, the implementer can set the retransmission times control threshold, the retransmission control increase step size, the retransmission control decrease step size, the retransmission times reduction threshold and the retransmission times increase threshold according to the actual situation.

上述实施例中,通过设置参数重传控制率,重传次数控制门限,重传控制抬升步长,重传控制降低步长,重传次数降低门限以及重传次数抬升门限,达到对最大重传次数进行自适应调整的目的,其避免了在5GFR1和FR2中,数据纠错处理都是MAC层通过harq机制进行实现,并且重传不会调整MCS,重传时最大重传次数的设置一般由厂商自行设置,不能进行自适应调整会造成大量空口资源浪费和空口的数据传输有效性得不到保证的问题。In the above embodiment, by setting the parameters retransmission control rate, retransmission times control threshold, retransmission control increase step size, retransmission control decrease step size, retransmission times reduction threshold and retransmission times increase threshold, the maximum retransmission rate can be achieved. The purpose of adaptive adjustment of the number of times is to avoid that in 5GFR1 and FR2, the data error correction process is implemented by the MAC layer through the harq mechanism, and the retransmission will not adjust the MCS. The maximum number of retransmissions during retransmission is generally set by Manufacturers set their own settings, and failure to make adaptive adjustments will cause a lot of waste of air interface resources and the effectiveness of air interface data transmission cannot be guaranteed.

步骤2,判断定时器内MCS是否处于稳态,当MCS处于稳态时,开启最大重传次数测量,并记录当前的重传控制率和MCS;若当前的重传控制率大于所述重传次数控制门限,并且MCS大于0时,则重传次数调整步长的取值加上重传控制抬升步长;若MCS等于0时,则重传次数调整步长的取值减去重传控制降低步长;若当前的重传控制率小于等于所述重传次数控制门限,则重传次数调整步长的取值减去重传控制降低步长;以此类推,当重传次数调整步长的取值达到重传次数降低门限时,减少设定次数的最大重传次数;当重传次数调整步长的取值达到重传次数抬升门限时,增加设定次数的最大重传次数;当MCS不处于稳态时,则定时器清0,重传次数测量清0,重传次数调整步长清0。Step 2. Determine whether the MCS in the timer is in a steady state. When the MCS is in a steady state, start the measurement of the maximum number of retransmissions, and record the current retransmission control rate and MCS; if the current retransmission control rate is greater than the retransmission The number of times control threshold, and when MCS is greater than 0, the value of the retransmission times adjustment step plus the retransmission control lifting step; if the MCS is equal to 0, the retransmission times adjustment step value minus the retransmission control Reduce the step size; if the current retransmission control rate is less than or equal to the retransmission times control threshold, then the value of the retransmission times adjustment step minus the retransmission control reduces the step size; and so on, when the retransmission times adjustment step When the long value reaches the threshold for reducing the number of retransmissions, reduce the maximum number of retransmissions for the set number; when the value of the adjustment step of the number of retransmissions reaches the threshold for increasing the number of retransmissions, increase the maximum number of retransmissions for the set number; When the MCS is not in a steady state, the timer is cleared to 0, the retransmission times measurement is cleared to 0, and the retransmission times adjustment step is cleared to 0.

MCS是指基站告诉终端,基站发射的PDSCH信道使用什么样的调制方式和编码速率,或者终端在发射PUSCH信道时应使用什么样的调制方式和编码速率。MCS means that the base station tells the terminal what modulation mode and coding rate the PDSCH channel transmitted by the base station uses, or what modulation mode and coding rate the terminal should use when transmitting the PUSCH channel.

具体地,判断定时器内MCS是否处于稳态的方法为:在定时器超时后,判断MCS的取值是否稳定处于一固定值不发生改变,若定时器超时后,MCS的取值稳定处于一固定值不发生改变,则判定定时器内MCS处于稳态;例如,在定时器超时后,MCS的取值稳定处于0不发生改变,此时说明MCS处于稳态,且MCS稳定为0;若定时器超时后,MCS的取值发生改变,则判定定时器内MCS不处于稳态。Specifically, the method for judging whether the MCS in the timer is in a steady state is as follows: after the timer expires, judge whether the value of the MCS is stable at a fixed value and does not change; if the timer expires, the value of the MCS is stable at a fixed value. If the fixed value does not change, it is determined that the MCS in the timer is in a steady state; for example, after the timer expires, the value of the MCS is stable at 0 and does not change, which means that the MCS is in a steady state, and the MCS is stable at 0; if After the timer expires and the value of the MCS changes, it is determined that the MCS in the timer is not in a steady state.

需要说明的是,重传次数调整步长的初始值为0,重传次数调整步长的变化分为2种情况,分别为,第1种变化情况:重传次数调整步长的取值加上重传控制抬升步长;第2种变化情况:重传次数调整步长的取值减去重传控制降低步长。It should be noted that the initial value of the retransmission times adjustment step size is 0, and the change of the retransmission times adjustment step size is divided into two cases, namely, the first change case: the value of the retransmission times adjustment step size plus Increase the step size of the upper retransmission control; the second change: the value of the retransmission times adjustment step size minus the retransmission control decrease step size.

在MCS处于稳态时,开启最大重传次数测量,并记录当前的重传控制率和MCS;若当前的重传控制率大于所述重传次数控制门限,并且MCS大于0时,则重传次数调整步长的取值加上重传控制抬升步长,对应重传次数调整步长的第1种变化情况。When the MCS is in a steady state, enable the measurement of the maximum number of retransmissions, and record the current retransmission control rate and MCS; if the current retransmission control rate is greater than the retransmission times control threshold, and the MCS is greater than 0, retransmit The value of the number of times adjustment step plus the retransmission control uplift step corresponds to the first change of the retransmission times adjustment step.

在MCS处于稳态时,开启最大重传次数测量,并记录当前的重传控制率和MCS;若当前的重传控制率大于所述重传次数控制门限,MCS等于0时,则重传次数调整步长的取值减去重传控制降低步长,对应重传次数调整步长的第2种变化情况。When the MCS is in a steady state, enable the measurement of the maximum number of retransmissions, and record the current retransmission control rate and MCS; if the current retransmission control rate is greater than the retransmission times control threshold, when MCS is equal to 0, the The value of the adjustment step size minus the retransmission control reduction step size corresponds to the second change of the retransmission times adjustment step size.

在MCS处于稳态时,开启最大重传次数测量,并记录当前的重传控制率和MCS;若当前的重传控制率小于等于所述重传次数控制门限,则重传次数调整步长的取值减去重传控制降低步长,同样对应重传次数调整步长的第2种变化情况。When the MCS is in a steady state, open the measurement of the maximum number of retransmissions, and record the current retransmission control rate and MCS; if the current retransmission control rate is less than or equal to the retransmission times control threshold, the retransmission times adjustment step The value minus the retransmission control reduces the step size, which also corresponds to the second change of the retransmission times adjustment step size.

进一步地,当重传次数调整步长的取值达到重传次数降低门限时,减少设定次数的最大重传次数;当重传次数调整步长的取值达到重传次数抬升门限时,增加设定次数的最大重传次数。Further, when the value of the retransmission times adjustment step reaches the retransmission times reduction threshold, reduce the maximum number of retransmissions set times; when the retransmission times adjustment step size reaches the retransmission times increase threshold, increase Set the maximum number of retransmissions.

本实施例中UE125在极差点做普通数据业务,获取该点位MCS,在定时器内MCS稳定为0,Bler门限在30%左右。In this embodiment, UE 125 performs ordinary data services at a very poor point, obtains the MCS at this point, and the MCS is stable at 0 within the timer, and the Bler threshold is about 30%.

测量统计UE125在MCS稳定为0时的重传次数,若重传4次的占比达到5%,也即重传控制率达到重传次数控制门限,则重传次数调整步长的取值-1,由于重传次数调整步长的初始值为0,此时重传次数调整步长的取值为-1,当重传次数调整步长的取值为-5时,则降低重传次数1次,则此时的重传次数为3次,对此UE维护的最大重传次数改为5,对应减少设定次数为1的最大重传次数,本实施例中设定次数的取值为1,作为其他实施方式,实施者也根据实际情况对设定次数的取值进行调整。Measure and count the number of retransmissions of UE125 when the MCS is stable at 0. If the proportion of retransmissions reaches 5%, that is, the retransmission control rate reaches the retransmission times control threshold, the value of the retransmission times adjustment step size is - 1. Since the initial value of the retransmission times adjustment step is 0, the retransmission times adjustment step size is -1 at this time. When the retransmission times adjustment step size is -5, the retransmission times are reduced 1 time, then the number of retransmissions at this time is 3 times, and the maximum number of retransmissions maintained by the UE is changed to 5, which corresponds to reducing the maximum number of retransmissions from the set number of times to 1. The value of the set number of times in this embodiment is 1, as other implementations, the implementer also adjusts the value of the set times according to the actual situation.

需要说明的是,如果UE61的重传次数降低到了3次,对此UE维护的最大重传次数就改为重传达到3次的统计。It should be noted that, if the number of retransmissions of UE61 is reduced to 3 times, the maximum number of retransmissions maintained by the UE is changed to the statistics of 3 times of retransmissions.

本实施例中UE61在中点位进行普通数据业务,获取该点位MCS,在定时器内MCS处于稳态,例如MCS稳定为12,Bler门限处于5%~10%之间波动。In this embodiment, UE61 performs ordinary data services at the midpoint, obtains the MCS at this point, and the MCS is in a steady state within the timer, for example, the MCS is stable at 12, and the Bler threshold fluctuates between 5% and 10%.

测量统计UE61在MCS稳定为12时的重传次数,若重传次数达到4次的占比达到5%,也即重传控制率达到重传次数控制门限,则重传次数调整步长的取值+1,如果重传次数达到4次的占比未达到5%,则重传次数调整步长的取值-1,以此类推,当重传次数调整步长的取值达到5,这个UE的重传次数增加1次为重传5次,也即最大重传次数的取值为5;当重传次数调整步长的取值达到-5,重传次数-1为重传3次,也即最大重传次数的取值为3。其中,最大重传次数的取值具有最大值与最小值,本实施例将最大值设置为6,将最小值设置为3,在具体操作过程中,实施者可根据实际情况调整最大值与最小值的取值。Measure and count the retransmission times of UE61 when the MCS is stable at 12. If the retransmission times reach 4 times and the proportion reaches 5%, that is, the retransmission control rate reaches the retransmission times control threshold, then the retransmission times adjustment step size is taken as Value +1, if the proportion of retransmission times reaching 4 times does not reach 5%, then the value of the retransmission times adjustment step is -1, and so on, when the retransmission times adjustment step size reaches 5, this The number of retransmissions of the UE is increased by 1 to retransmit 5 times, that is, the value of the maximum number of retransmissions is 5; when the value of the retransmission times adjustment step reaches -5, the number of retransmissions -1 means 3 retransmissions , that is, the value of the maximum number of retransmissions is 3. Among them, the value of the maximum number of retransmissions has a maximum value and a minimum value. In this embodiment, the maximum value is set to 6, and the minimum value is set to 3. In the specific operation process, the implementer can adjust the maximum value and the minimum value according to the actual situation. The value of the value.

本实施例中,如果UE61的重传次数达到了5次,对此UE维护的最大重传次数就改为重传达到5次的统计。In this embodiment, if the number of retransmissions of UE61 reaches 5 times, the maximum number of retransmissions maintained by the UE is changed to the statistics of 5 retransmissions.

判断UE61用户重传第5次的优先级降低,即为调度优先级为重传>新传>第5、6次重传,保证多用户调度时其他用户的流量稳定。It is judged that the priority of the fifth retransmission of the UE61 user is lowered, that is, the scheduling priority is retransmission>new transmission>5th and 6th retransmissions, so as to ensure that the traffic of other users is stable during multi-user scheduling.

需要说明的是,本发明提出的一种基于无线信道质量的重传数据控制方法通过设置参数即重传控制率,重传次数控制门限,重传控制抬升步长,重传控制降低步长,重传次数降低门限以及重传次数抬升门限;利用设置的参数与信道质量共同进行调整最大重传次数,使得最大重传次数能够根据信道质量进行自适应调节,可以在MCS>0时,进一步保证UE的数据传输可靠性,在MCS=0时,极差点时的多次无效重传造成的空口资源浪费。It should be noted that a retransmission data control method based on wireless channel quality proposed by the present invention sets parameters, namely the retransmission control rate, the retransmission times control threshold, the retransmission control raising step size, and the retransmission control reducing step size, The number of retransmissions reduces the threshold and the number of retransmissions raises the threshold; the maximum number of retransmissions is adjusted by using the set parameters and the channel quality, so that the maximum number of retransmissions can be adaptively adjusted according to the channel quality, which can be further guaranteed when MCS>0 For the data transmission reliability of the UE, when MCS=0, air interface resources are wasted due to multiple invalid retransmissions at extreme points.

以上所述实施例仅用以说明本申请的技术方案,而非对其限制;尽管参照前述实施例对本申请进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例技术方案的范围,均应包含在本申请的保护范围之内。The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still implement the foregoing embodiments Modifications to the technical solutions recorded in the examples, or equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of each embodiment of the application, and should be included in the scope of the technical solutions of the embodiments of the application. within the scope of protection.

Claims (3)

1. A retransmission data control method based on wireless channel quality, the method comprising the steps of:
setting a retransmission control rate, a retransmission times control threshold, a retransmission control lifting step length, a retransmission control reducing step length, a retransmission times reducing threshold and a retransmission times lifting threshold;
judging whether the MCS in the timer is in a steady state or not;
when the MCS is in a steady state, starting the measurement of the maximum retransmission times, and recording the current retransmission control rate and the MCS;
if the current retransmission control rate is greater than the retransmission times control threshold and the MCS is greater than 0, adding the retransmission times adjustment step length to the retransmission control lifting step length; if the MCS is equal to 0, subtracting the retransmission control reduction step length from the value of the retransmission number adjustment step length;
if the current retransmission control rate is smaller than or equal to the retransmission times control threshold, subtracting the retransmission control reduction step length from the value of the retransmission times adjustment step length; similarly, when the value of the retransmission number adjustment step reaches the retransmission number reduction threshold, the maximum retransmission number of the set number is reduced; when the value of the retransmission times adjustment step length reaches a retransmission times lifting threshold, increasing the maximum retransmission times of the set times;
when the MCS is not in a steady state, the timer clears 0, the retransmission times measure clear 0, and the retransmission times adjust the step length clear 0.
2. The retransmission data control method based on wireless channel quality according to claim 1, wherein the retransmission control rate is a number of times when the number of retransmissions in a certain number of packets is the maximum number of retransmissions.
3. The method for controlling retransmission data based on wireless channel quality according to claim 1, wherein the retransmission times control threshold, the retransmission control lifting step length, the retransmission control reducing step length, the retransmission times reducing threshold and the retransmission times lifting threshold are all configured by the manufacturer.
CN202211691555.6A 2022-12-28 2022-12-28 Retransmission data control method based on wireless channel quality Pending CN116015562A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211691555.6A CN116015562A (en) 2022-12-28 2022-12-28 Retransmission data control method based on wireless channel quality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211691555.6A CN116015562A (en) 2022-12-28 2022-12-28 Retransmission data control method based on wireless channel quality

Publications (1)

Publication Number Publication Date
CN116015562A true CN116015562A (en) 2023-04-25

Family

ID=86027791

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211691555.6A Pending CN116015562A (en) 2022-12-28 2022-12-28 Retransmission data control method based on wireless channel quality

Country Status (1)

Country Link
CN (1) CN116015562A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104796238A (en) * 2015-04-28 2015-07-22 电子科技大学 A Retransmission Resource Allocation Method Based on Adaptive HARQ
US20170099616A1 (en) * 2014-06-25 2017-04-06 Kyocera Corporation Wireless communication device, wireless communication system, and communication control method
CN107294661A (en) * 2016-03-30 2017-10-24 中兴通讯股份有限公司 Method of adjustment, device and the base station of hybrid automatic repeat-request maximum retransmission
CN113839757A (en) * 2020-06-24 2021-12-24 北京三星通信技术研究有限公司 Uplink control information sending method, receiving method, terminal and base station

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170099616A1 (en) * 2014-06-25 2017-04-06 Kyocera Corporation Wireless communication device, wireless communication system, and communication control method
CN104796238A (en) * 2015-04-28 2015-07-22 电子科技大学 A Retransmission Resource Allocation Method Based on Adaptive HARQ
CN107294661A (en) * 2016-03-30 2017-10-24 中兴通讯股份有限公司 Method of adjustment, device and the base station of hybrid automatic repeat-request maximum retransmission
CN113839757A (en) * 2020-06-24 2021-12-24 北京三星通信技术研究有限公司 Uplink control information sending method, receiving method, terminal and base station

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MEDIA TEK INC: ""R4-133641 Phase-2 simulation details and parameters (final)"", 3GPP TSG_RAN\\WG4_RADIO, 13 August 2013 (2013-08-13) *
ZTE: "R1-133062 "Discussion on Repetition for Control and Traffic Channel"", 3GPP TSG_RAN\\WG1_RL1, no. 1, 10 August 2013 (2013-08-10) *

Similar Documents

Publication Publication Date Title
RU2335086C2 (en) Modified regulation of power for hybride automatic request for repetition in case of feedback
JP4911031B2 (en) Retransmission scheme in cellular communication system
JP4121851B2 (en) Information communication method and apparatus using the method
CN101207461B (en) Method and apparatus for self-adapting regulation of threshold value
RU2559830C2 (en) Power control for ack/nack formats with carrier aggregation
RU2275748C2 (en) Method and device for adaptation of data transfer speed for packet data transfer
US9521655B2 (en) Method and apparatus for avoiding power scaling in uplink data transmission
EP2223438B1 (en) Outer loop power control for e-dch
US20020027897A1 (en) Method for the communication of information and apparatus employing the method
US20110126037A1 (en) Power saving method in mobile communication network
US20080207243A1 (en) Transmission Power Control Method, Mobile Station, Radio Base Station, and Radio Line Control Station
US8098613B2 (en) Method of managing transmission delay in a wireless communication system
US9686048B2 (en) Delayed automatic repeat request (ARQ) acknowledgment
US8908592B2 (en) System and method for uplink power control
CN101188446B (en) Power control method and device
CN116015562A (en) Retransmission data control method based on wireless channel quality
CN101088230B (en) Method for transmitting data packets
US20080311856A1 (en) Method and Apparatus for Power Control of an Air Interface Transmission
CN116017721A (en) Uplink RLC segmented scheduling method, device, terminal equipment and storage medium
WO2023124343A1 (en) Channel adaptive processing method, base station and readable storage medium
CN118104372A (en) Method, communication device and infrastructure equipment

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination