CN101877749B - Method and device for adjusting voice service scheduling priority - Google Patents

Method and device for adjusting voice service scheduling priority Download PDF

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CN101877749B
CN101877749B CN 201010216831 CN201010216831A CN101877749B CN 101877749 B CN101877749 B CN 101877749B CN 201010216831 CN201010216831 CN 201010216831 CN 201010216831 A CN201010216831 A CN 201010216831A CN 101877749 B CN101877749 B CN 101877749B
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residual
error rate
threshold value
block error
voice service
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陈冬雷
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中兴通讯股份有限公司
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Abstract

本发明公开了一种语音业务调度优先级的调整方法及装置,以克服现有技术难以精确调整语音业务的调度优先级的技术缺陷,其中该方法主要包括:在每个调度周期内,根据已传输数据包更新语音业务队列的残留块错误率;判断出所述语音业务队列中第一个数据包的等待时间超过丢弃时间时,更新所述残留块错误率;获得所述语音业务队列的时延因子;根据比例公平调度因子,以及所述残留块错误率及时延因子,获得所述语音业务的目标调度优先级。 The present invention discloses a voice service scheduling priority adjustment method and apparatus to overcome the prior art is difficult to precisely adjust the voice service scheduling priority technical defects, wherein the method comprises: in each scheduling cycle, according to already transport packet voice service update queue residual block error rate; determining that the voice traffic in the first queue wait time data packet exceeds the discard time, updating the residual block error rate; is obtained when the voice service queue delay factor; proportional fair scheduling factor, and in accordance with the residual block error rate and delay factor, obtaining the target voice service scheduling priority. 与现有技术相比,本发明的实施例在考虑时延因子的基础上引入残留块错误率一并考虑,可以在中等语音业务用户数时降低用户残留块错误率,改善某些用户的通话质量,并进一步提高语音业务用户容量。 Compared with the prior art, embodiments of the present invention is introduced into the residual block error rate in consideration of the time delay factor considered together, the user can reduce the residual block error rate at intermediate voice service users, the user's call to improve certain quality and further enhance voice user capacity.

Description

—种语音业务调度优先级的调整方法及装置 - scheduling priority voice service kind of adjusting method and apparatus of

技术领域 FIELD

[0001] 本发明涉及高速分组接入及其演进(HSPA/HSPA+)移动通信技术,尤其涉及一种语音业务调度优先级的调整方法及装置。 [0001] The present invention relates to high speed packet access its evolution (HSPA / HSPA +) mobile communications technology, particularly to a voice service scheduling priority adjustment method and apparatus.

背景技术 Background technique

[0002] 在宽带码分多址(WCDMA)蜂窝移动网络中,基于电路交换的语言业务是其重要的业务类型。 [0002] In wideband code division multiple access (WCDMA) cellular network, the language based on circuit switching service is an important service type. 随着网络升级到高速下行分组接入(HSPA)系统,并且在全球范围内广泛的部署,以及3GPP R7标准中在HSPA下用于提高语音业务容量的连续分组连接(CPC)技术、增强碎形专用物理信道(EnhancedF-DPCH)的提出,运营商开始关注基于分组交换的语言业务位于HSPA进行传输,即网络电话(VoIP)。 As network upgrades to high speed downlink packet access (HSPA) system, and is widely deployed, and a continuous packet connectivity (CPC) 3GPP R7 standard for increasing traffic capacity in a voice HSPA technology, to enhance fractal worldwide proposed dedicated physical channel (EnhancedF-DPCH), the operators begin to pay attention for transmission based on packet switching HSPA language service is located, i.e. Internet telephony (VoIP).

[0003] 除了与标准相关的CPC技术以及Enhanced F-DPCH技术可以用于提高HSPA网络中VoIP的容量之外,各设备商还可以通过提出自己的算法来提高容量,包括高速上行分组接入(HSUPA)技术中采用干扰消除技术(1C),高速下行分组接入(HSDPA)技术采用具有服务质量(QoS)保证的调度算法等。 [0003] In addition to the CPC associated with the standard techniques and Enhanced F-DPCH techniques may be used to increase the capacity of HSPA VoIP network outside each supplier apparatus may further increase capacity by presenting its own algorithm, including high-speed uplink packet access ( HSUPA) technique using interference cancellation techniques (1C), high speed downlink packet access (HSDPA) technology uses a scheduling algorithm with quality of service (QoS) guarantee, and the like.

[0004] 对于尽力而为的业务(BE)而言,目前常用的调度算法是比例公平调度算法(PF),该算法对小区吞吐率和用户公平性进行了折中,即既考虑了用户当前的信道质量,也考虑了用户的历史吞吐率,算法的公式如表达式(1)所示: [0004] For best-effort service (BE), the currently used scheduling algorithm is a proportional fair scheduling algorithm (the PF), and the algorithm for cell throughput fairness were compromise user, i.e. the user's current account both channel quality, the user's history is also contemplated throughput, the algorithm formula as shown in expression (1):

[0005] [0005]

Figure CN101877749BD00041

[0006] 其中,R(t)表示当前传输时间间隔(TTI)内用户设备(UE)的瞬时速率,可以通过反馈的信道质量指示(CQI)除以TTI得到,R(t)表示过去所有TTI内UE的历史吞吐率。 [0006] wherein, R (t) indicates the current transmission time interval (TTI) User Equipment (UE), the instantaneous rate can be obtained by dividing the TTI feedback channel quality indication (CQI), R (t) represents all past TTI history throughput within the UE.

[0007] 过去所有TTI内提供给UE的历史吞吐率R(t),可以在每个TTI内利用递归表达式对所有UE都进行更新,即: [0007] provided in the past to history throughput R (t) UE, we can use recursion in each TTI All TTI UE are all updated, namely:

[0008] [0008]

Figure CN101877749BD00042

[0009] 式中,R(t-1)为上一个TTI内UE的历史吞吐率,1/τ为遗忘因子。 [0009] In the formula, R (t-1) is a history of throughput of the UE within one TTI, 1 / τ is the forgetting factor.

[0010] 而语音业务VoIP与尽力而为的BE业务相比,具有时延要求高,丢包率要求低的特点,因此需要新的调度算法对其QoS进行保证,同时最大化小区支持VoIP业务容量。 [0010] and VoIP voice services compared with the best effort BE traffic, with high latency requirements, require low packet loss rate characteristics, and therefore need a new scheduling algorithm to guarantee its QoS, while maximizing community support VoIP services capacity.

[0011] 一种现有技术提出的技术方案是,VoIP与其它业务并存时,要提高VoIP的优先级,用于保证其时延。 [0011] One prior art proposed solution is that when VoIP coexist with other services, to increase the priority of VoIP, to guarantee its latency. 其具体方法是采用数据包最大允许等待时间和当前等待时间做比较,是否低于某一设定的门限值,如果是则提高VoIP的优先级,当多个VoIP用户低于门限值时,根据最大允许等待时间和当前等待时间的差值进行排序,值越小则优先级越高,越先被调度。 The specific method is to use the maximum allowable data packet waiting time and the current wait time for comparison, is below a certain threshold value is set, if the priority is increased VoIP, when a plurality of VoIP users is below the threshold value , sorted according to the difference between the maximum allowed waiting time and the current wait time, the higher the priority value is smaller, the first being scheduled. [0012] 另一种现有技术提出,对于时延敏感的业务,如VoIP,在调度算法优先级计算中需要引入时延因子,具体表现为可以采用当前时延与最大允许时延的函数,或者当前队列长度与最大允许的队列长度之间的函数,当前时延越接近最大允许的时延则其调度优先级越高,或者当前队列长度越接近最大允许的队列长度则其调度优先级最高。 [0012] Another prior art proposes, for the delay-sensitive traffic, such as VoIP, the scheduling priority computation delay factor needs to be introduced, may be employed as embodied this function allows the maximum delay and delay, or function between a current queue length and the maximum allowed queue length, the closer the current maximum allowable latency delay it a higher priority scheduling, or the current queue length closer to the maximum permissible queue length which is the highest priority scheduling .

[0013] 上述技术方案都是基于在调度算法中引入等待时间或者队列长度来保证VoIP业务的时延,难以准确反映并调整语音业务的调度优先级。 [0013] Based on the above technical solutions are introduced into the scheduling algorithm latency delay or queue length to ensure that the VoIP service, and it is difficult to adjust accurately reflect scheduling priority voice service.

发明内容 SUMMARY

[0014] 本发明所要解决的技术问题是需要提供一种语音业务调度优先级的调整技术,以克服现有技术难以精确调整语音业务的调度优先级的技术缺陷。 [0014] The present invention solves the technical problem is the need to provide a voice service scheduling priority adjustment techniques, to overcome the prior art is difficult to precisely adjust the voice service scheduling priority technical drawbacks.

[0015] 为了解决上述技术问题,本发明提供了一种语音业务调度优先级的调整方法,包括: [0015] To solve the above problems, the present invention provides a method of adjusting a voice service priority scheduling, comprising:

[0016] 在每个调度周期内,根据已传输数据包更新语音业务队列的残留块错误率; [0016] In each scheduling period, according to the transmission data has been updated residual block error rate packet voice service queue;

[0017] 判断出所述语音业务队列中第一个数据包的等待时间超过丢弃时间时,更新所述残留块错误率; [0017] When it is determined that the waiting time of the first voice service in a packet queue exceeds a discard time, updating the residual block error rate;

[0018] 获得所述语音业务队列的时延因子; [0018] The obtained voice service queue delay factor;

[0019] 根据比例公平调度因子,以及所述残留块错误率及时延因子,获得所述语音业务的目标调度优先级。 [0019] factor, and the residual block error rate and delay factor, obtaining the target voice service scheduling priority according to a proportional fair scheduling.

[0020] 优选地,获得所述语音业务队列的时延因子的步骤,包括: [0020] Preferably, the step of obtaining the voice service queue delay factor, comprising:

[0021] 根据所述等待时间及丢弃时间,获得所述时延因子。 [0021] The wait time and the drop time, the delay factor is obtained.

[0022] 优选地,根据所述比例公平调度因子,以及所述残留块错误率及时延因子,获得所述目标调度优先级的步骤,包括: [0022] Preferably, according to the proportional fair scheduling factor, and the residual block error rate and delay factor to obtain said step of scheduling priority target, comprising:

[0023] 判断出所述残留块错误率与预设的残留阈值的大小关系; [0023] Analyzing the relationship between the size of the residual block error rate and a predetermined residual threshold;

[0024] 根据所述大小关系,以及所述残留块错误率及时延因子获得调整函数; [0024] The relation to the size, and the residual block error rate and delay factor adjustment function is obtained;

[0025] 利用所述调整函数对所述比例公平调度因子进行加权处理,获得所述语音业务的所述目标调度优先级。 [0025] The adjustment function using the weighting factors proportional fair scheduler process to obtain the objectives of the voice service scheduling priority.

[0026] 优选地,根据所述大小关系,以及所述残留块错误率及时延因子获得所述调整函数的步骤,包括: [0026] Preferably, according to the magnitude relation, and the residual block error rate and delay the step of obtaining the adjustment factor function, comprising:

[0027] 所述残留阈值包括第一残留阈值、第二残留阈值及第三残留阈值,所述第二残留阈值大于所述第一残留阈值且小于所述第三残留阈值; [0027] The remaining residual threshold comprises a first threshold value, the second threshold value and the third remaining residual threshold value, the second threshold value is remaining greater than the first threshold value and less than the remaining residual third threshold value;

[0028] 判断出所述残留块错误率小于所述第一残留阈值或者大于等于所述第三残留阈值时,将所述时延因子作为所述调整函数; [0028] determines that the residual block error rate is less than the first threshold value or greater than a residual equal to the third threshold residual value, the delay factor as a function of the adjustment;

[0029] 判断出所述残留块错误率大于等于所述第一残留阈值且小于所述第二残留阈值时,将所述时延因子与一第一预设参数之和作为所述调整函数; [0029] The residual block is determined that the error rate is greater than or equal to the first threshold value and less than the remaining residual second threshold value, the adjustment factor to the delay with a predetermined first parameter as a function of the sum;

[0030] 判断出所述残留块错误率大于等于所述第二残留阈值且小于所述第三残留阈值时,将所述时延因子与一第二预设参数之积作为所述调整函数; [0030] determines that the residual block error rate is greater than or equal to the second threshold value and less than the remaining residual third threshold value, the second predetermined time delay factor and a product of the adjustment as a function of the parameter;

[0031] 判断出所述残留块错误率大于等于所述第三残留阈值时,将所述时延因子作为所述调整函数。 [0031] determines that the residual block error rate is greater than or equal to the third threshold residual value, the delay factor as a function of the adjustment.

[0032] 为了解决上述技术问题,本发明还提供了一种语音业务调度优先级的调整装置,包括第一更新模块、第二更新模块、第一获取模块以及第二获取模块,其中: [0032] To solve the above problems, the present invention further provides a voice service scheduling priority adjustment means comprises a first updating module, a second updating module, a first and a second acquisition module acquiring module, wherein:

[0033] 所述第一更新模块,用于在每个调度周期内,根据已传输数据包更新语音业务队列的残留块错误率; [0033] The first updating module, for each scheduling period, update residual block error rate of the packet voice service according to the transmitted data queue;

[0034] 所述第二更新模块,用于判断出所述语音业务队列中第一个数据包的等待时间超过丢弃时间时,更新所述残留块错误率; [0034] The second updating module, configured to determine that the voice traffic in the first queue wait time data packet exceeds the discard time, updating the residual block error rate;

[0035] 所述第一获取模块,用于获得所述语音业务队列的时延因子; [0035] The first acquiring module, for obtaining the voice service queue delay factor;

[0036] 所述第二获取模块,用于根据比例公平调度因子,以及所述残留块错误率及时延因子,获得所述语音业务的目标调度优先级。 [0036] The second acquiring module, for the proportional fair scheduling factor, and in accordance with the residual block error rate and delay factor, obtaining the target voice service scheduling priority.

[0037] 优选地,所述第一获取模块用于根据所述等待时间及丢弃时间,获得所述时延因子。 [0037] Preferably, the obtaining module according to the first wait time and the drop time, the delay factor is obtained.

[0038] 优选地,所述第二获取模块包括预设单元、判断单元、第一获取单元以及第二获取单元,其中: [0038] Preferably, the presetting unit includes a second acquiring module, a determining unit, a first acquiring unit and the second obtaining unit, wherein:

[0039] 所述预设单元,用于预设残留阈值; [0039] The preset unit for presetting a threshold residual value;

[0040] 所述判断单元,用于判断出所述残留块错误率与所述残留阈值的大小关系; [0040] The determination unit, for determining the size relationship of the residual block error rate and the threshold value of said residual;

[0041] 所述第一获取单元,用于根据所述大小关系,以及所述残留块错误率及时延因子获得调整函数; [0041] The first acquiring unit, and delay a factor according to the magnitude relation, and the obtained residual block error rate adjustment function;

[0042] 所述第二获取单元,用于利用所述调整函数对所述比例公平调度因子进行加权处理,获得所述语音业务的所述目标调度优先级。 [0042] The second acquiring unit, using the adjustment function for the weighting factor proportional fair scheduler process to obtain the objectives of the voice service scheduling priority.

[0043] 优选地, [0043] Preferably,

[0044] 所述预设单元用于预设第一残留阈值、第二残留阈值及第三残留阈值,所述第二残留阈值大于所述第一残留阈值且小于所述第三残留阈值; [0044] The presetting unit for presetting a first threshold residual value, a second threshold value and the third remaining residual threshold value, the second threshold value is remaining greater than the first threshold value and less than the remaining residual third threshold value;

[0045] 所述第一获取单元用于所述判断单元判断出所述残留块错误率小于所述第一残留阈值或者大于等于所述第三残留阈值时,将所述时延因子作为所述调整函数; [0045] The first acquisition unit for the determination unit determines the residual block error rate is less than the first threshold value or greater than a residual equal to the third threshold residual value, the delay factor, as the adjustment function;

[0046] 所述第一获取单元用于所述判断单元判断出所述残留块错误率大于等于所述第一残留阈值且小于所述第二残留阈值时,将所述时延因子与一第一预设参数之和作为所述调整函数; [0046] The first acquiring unit when the determination of the residual block error rate is greater than or equal to the first threshold value and less than the remaining residual second threshold value, the delay factor and a second means for determining the the sum of a preset parameter as a function of the adjustment;

[0047] 所述第一获取单元用于所述判断单元判断出所述残留块错误率大于等于所述第二残留阈值且小于所述第三残留阈值时,将所述时延因子与一第二预设参数之积作为所述调整函数。 [0047] The first acquiring unit when the determination of the residual block error rate is greater than or equal to the second threshold value and less than the remaining residual third threshold value, the delay factor and a second means for determining the plot 20 of preset parameters as a function of the adjustment.

[0048] 与现有技术相比,本发明的实施例在考虑时延因子的基础上引入残留BLER—并考虑,可以在中等语音业务用户数时降低用户残留BLER,改善某些用户的通话质量,并进一步提高语音业务用户容量。 [0048] Compared with the prior art, embodiments of the present invention introduce remaining BLER- factor in consideration of the delay and take into account the user can be reduced at moderate residual BLER voice service users, some users to improve call quality and further enhance voice user capacity.

附图说明 BRIEF DESCRIPTION

[0049] 图1是本发明实施例提供的语音业务调度优先级的调整方法的流程示意图; [0049] FIG. 1 is a schematic diagram of the method for adjusting the flow priority voice traffic scheduling according to an embodiment of the present invention;

[0050] 图2是图1所示流程中步骤S140的具体流程示意图; [0050] FIG. 2 is a flow shown in FIG. 1 in particular a schematic flow diagram of step S140;

[0051] 图3是本发明实施例提供的语音业务调度优先级的调整装置的结构示意图。 [0051] FIG. 3 is a schematic structural diagram of a voice service scheduling priority adjustment apparatus according to an embodiment of the present invention.

具体实施方式[0052] 以下将结合附图及实施例来详细说明本发明的实施方式,借此对本发明如何应用技术手段来解决技术问题,并达成技术效果的实现过程能充分理解并据以实施。 DETAILED DESCRIPTION [0052] The accompanying drawings and the following Examples of the present invention will be described in detail, how the present invention is applied whereby the technical means to solve the technical problem, and achieve the technical effect of the implementation can be fully appreciated and accordingly embodiment .

[0053] 首先,如果不冲突,本发明实施例以及实施例中的各个特征可以相互结合,均在本发明的保护范围之内。 [0053] First, if no conflict, the embodiments of the present invention and the various features of the embodiments may be combined with each other, are within the scope of the present invention. 另外,在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行,并且,虽然在流程图中示出了逻辑顺序,但是在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤。 Further, the steps shown in the flowchart drawings can be executed in a computer system such as computer-executable instructions in a group, and although in the flowchart shown in a logical order, but in some cases, may be different steps shown or described herein in order execution.

[0054] 在3GPP R8标准中,引入了电路交换语音业务位于HSPA (CS voice overHSPA),该功能是将通过电话交换的语音业务位于HSPA传输,本发明中针对语音业务的调度算法除了可以用于VoIP语音业务之外,也可以用于CS语音业务。 [0054] In standard 3GPP R8, the introduction of business located in circuit-switched voice HSPA (CS voice overHSPA), the switching function is located in the telephone voice HSPA transmission, the present invention, the scheduling algorithm may be used in addition to voice service outside the VoIP service it can also be used CS voice service.

[0055] 对于语音业务,本发明的技术方案通过残留块错误率(BLER)来衡量其通话质量,例如,可以设定残留BLER不超过一预设阈值(如2%等)时视为通话质量良好。 [0055] For voice services, the technical solution of the present invention to measure voice quality by which residual block error rate (BLER), e.g., call quality can be set when considered residual BLER does not exceed a predetermined threshold (e.g., 2%, etc.) good.

[0056] 对于基于HSDPA进行传输的语音业务而言,其残留BLER由两部分组成,一是超过三次重传造成的残留BLER,另外一个是超过丢弃时间(Discardtime)引起的残留BLER。 [0056] For HSDPA-based voice transmission traffic, its residual BLER consists of two parts, one is more than three retransmissions caused by residual BLER, the other is time exceeds the discard residual BLER (Discardtime) caused.

[0057] 当由超过重传次数造成的残留BLER比较高时,可以通过减小传输块,增加发送功率或者提高重传次数来降低。 [0057] When the residual BLER caused by the retransmission count exceeds a relatively high, can be reduced by reducing the transmission block, the transmission power increase or enhance the number of retransmissions. 而对于由于超过丢弃时间而引起的残留BLER,可以通过适当地提高其优先级来降低。 For residual BLER exceeds the discard time since caused, can be reduced by appropriately increase its priority.

[0058] 由于语音业务其传输的数据块都比较小,经过三次重传之后的残留BLER—般都为0,所以语音业务的残留BLER都是由于数据包超过丢弃时间而引起。 [0058] Since the data block which voice transmissions are relatively small, residual elapsed after three retransmissions are generally BLER- 0, the residual BLER since voice packets are dropped over time due.

[0059] 为此,通过在调度算法中引入残留BLER因素,对残留BLER比较高的用户,通过提高其调度优先级,可以起到降低残留BLER的作用,从而改善用户语音质量。 [0059] For this reason, by introducing residual BLER factor scheduling algorithm, a relatively high residual BLER user, by raising its priority scheduling, it may help reduce the effect of residual BLER, thereby improving the quality of the user's voice.

[0060] 通常认为,当系统中5%的语音用户超过其最大允许的残留BLER时,当前系统中的用户数可以视为小区最大支持用户数。 [0060] Generally considered, when the voice system user 5% residual BLER exceeds its maximum allowed time, the current number of users the system can be considered to support the maximum number of cell users. 因此,通过进一步提高残留BLER大的用户的调度优先级,可以使得更多的用户残留BLER控制在最大允许值之下,从而进一步提高小区的语音用户容量。 Accordingly, a large BLER user scheduling priority residue is further improved, so that more users can control the residual BLER below the maximum permissible value, thereby further improving the voice user capacity of the cell.

[0061] 具体地,引入了残留BLER的调度优先级的表达式如下: [0061] In particular, the introduction of an expression scheduling priority residual BLER as follows:

Figure CN101877749BD00071

[0063]其中: [0063] wherein:

[0064] [0064]

Figure CN101877749BD00072

表示比例公平调度因子; It represents a proportional fair scheduling factor;

[0065] w(thol, TdiscardtiJ表示时延因子,为队列中第一个数据包等待时间与丢弃时间的函数; [0065] w (thol, TdiscardtiJ represents delay factor for the first packet in the queue waiting time and discard function of time;

[0066] Bresidual 表不残留BLER ; [0066] Bresidual table without leaving the BLER;

[0067] f(w(x H0L, Tdiscardtime),Bresidual)表示在时延因子的基础上,再根据残留BLER为语音业务所提高到的调度优先级。 [0067] f (w (x H0L, Tdiscardtime), Bresidual) represents the delay factor based on the voice traffic is then raised to residual BLER according to scheduling priority.

[0068] 如果当前语音业务的残留BLER很低(低于预设的第一残留阈值)的时候,可以不在时延因子的基础上提高调度优先级;如果当前语音业务的残留BLER达到一定程度(大于等于第一残留阈值并小于一第二残留阈值,该第二残留阈值大于该第一残留阈值)的时候,需要在时延因子的基础上适当提高其调度优先级,用于改善用户的通话质量,如果当前语音业务的残留BLER已经比较大(大于等于第二残留阈值并小于一第三残留阈值,该第三残留阈值大于该第二残留阈值)),则需要在时延因子的基础上较大幅度地提高其调度优先级,保证用户不掉话,从而使小区可以有更大的容量。 [0068] If the current voice service residual BLER low (below a predetermined threshold value a first residue), they can not improve the delay factor based on a scheduling priority; if the current residual BLER voice service to a certain extent ( the residue is equal to a first threshold value is greater than and less than a second threshold value is remaining, the second threshold value is greater than the remaining residue first threshold value) when necessary to appropriately increase its scheduling priority on the basis of the time delay factor for improving user's call quality, if the residual BLER current voice service has a relatively large (greater than equal to the second threshold value and less than a residue remaining third threshold, the third threshold value is larger than the second remaining residue threshold value)), the delay factor is required on the basis of greatly improved compared with their scheduling priority, to ensure that the user does not call drop, so that the cell may have a greater capacity. 具体可以通过以下表格表示: Specific can be represented by the following table:

[0069]表1 f (w ( T H0L,Tdiscardtime),Bresidual)函数 [0069] TABLE 1 f (w (T H0L, Tdiscardtime), Bresidual) function

[0070] [0070]

Figure CN101877749BD00081

[0071]其中: [0071] wherein:

[0072] 第一残留阈值k%的最小值为可以O ; [0072] The first residue k% minimum threshold that can be O;

[0073] 第二残留阈值p%大于该第一残留阈值k% ; [0073]% p is greater than a second threshold value of the remaining residue first threshold K%;

[0074] 第三残留阈值大于该第二残留阈值p%,最大值为最大允许的残留BLER乘以100 ; [0074] The third threshold value is greater than the threshold residual p% of the remaining second, maximum value 100 is multiplied by the maximum allowable residual BLER;

[0075] w( Thol, Tdiscardtime)+A为第一调整函数,表示在时延因子w( Thol, Tdiscardtime) [0075] w (Thol, Tdiscardtime) + A first adjustment function, represents the delay factor w (Thol, Tdiscardtime)

的基础 Foundation

上,适当提高语音业务调度优先级;其中A为第一预设参数; The appropriate scheduling priority of the voice service; wherein A is a first predetermined parameter;

[0076] w (τ H0L, Tdiscardtime) *Β为第二调整函数,表示在时延因子w( Thol, Tdiscardtime)的基础 [0076] w (τ H0L, Tdiscardtime) * Β second adjustment function, represents the basis of the time delay factor w (Thol, Tdiscardtime) of

上,较大幅度的提高调度优先级;其中B为第二预设参数。 , The more substantial increase scheduling priority; wherein B is a second preset parameter.

[0077] 需要说明的是上述内容是以为残留BLER预设两个残留阈值以及相应获得两个调整函数为例进行说明的,实际上,也可以预设其他数量的残留阈值(比如一个,或者三个等等)以及获得的相应数量的调整函数来调整语音业务的调度优先级。 [0077] It is noted that residual BLER is above a predetermined threshold value and the remaining two to obtain two respective adjustment function will be described as an example, in fact, other numbers may be preset threshold residue (such as one, three, or a etc.) and the corresponding number of the obtained adjustment function to adjust scheduling priority voice service. 比如为残留BLER预设一个残留阈值时,是判断出残留块错误率与预设的该残留阈值的大小关系;根据该大小关系、残留块错误率及时延因子,获得对应该残留阈值的调整函数;然后再利用该调整函数对前述的比例公平调度因子进行加权处理,获得语音业务的目标调度优先级。 When such a preset one residual threshold as the residue the BLER, is judged that the magnitude relationship residual block error rate and a preset of the remaining threshold; according to the magnitude relation, the residual block error rate and delay factors obtained adjustment function should residual threshold ; then use the adjustment function of the weighting factor proportional fair scheduler process to obtain the target voice service scheduling priority.

[0078] 实施例一、一种语音业务调度优先级的调整方法 Adjustment method [0078] Example I. A voice traffic scheduling priority

[0079] 如图1所示,本实施例主要包括如下步骤: [0079] As shown in FIG 1, the present embodiment mainly includes the following steps:

[0080] 步骤S110,在每个调度周期内,根据已传输数据包更新语音业务队列的残留BLER ; [0080] step S110, the in each scheduling period, according to the transmission data has been updated residual BLER voice packet queue;

[0081] 步骤S120,判断语音业务队列中第一个数据包的等待时间是否超过丢弃时间,如果是则更新该残留BLER ;否则,则该数据不会丢弃,不需要更新残留bier ; [0081] step S120, the voice traffic is determined whether the waiting time in the queue exceeds a first packet discard time, if the BLER is updating the residue; otherwise, the data will not be discarded, no need to update the residual Bier;

[0082] 步骤S130,根据等待时间和丢弃时间,获得语音业务队列的时延因子w( Thol, Tdiscardtime) [0082] step S130, the waiting time according to the time and discarded, to obtain voice service delay factor w queue (Thol, Tdiscardtime)

[0083] 步骤S140,根据比例公平调度因子,以及所述残留块错误率及时延因子获得语音业务的目标调度优先级,可称之为在时延因子的基础上根据残留BLER提高语音业务的调度优先级,即利用时延因子与残留BLER的函数值f (w( τ [0083] step S140, the proportional fair scheduling factor, and the residual block error rate target and delay factors obtained according to a voice service scheduling priority, scheduling can be improved voice call service according residual BLER factor on the basis of the delay function value f (w (τ priority, i.e. using the time delay factor and residual BLER

HOL,Tdiscardtime),^residual^ W ( T h〇L, HOL, Tdiscardtime), ^ residual ^ W (T h〇L,

R(t) R (t)

TdiscardtiJ对比例公平调度因子 TdiscardtiJ of proportional fair scheduling factor

Figure CN101877749BD00091

一进行加权处理,获得语音业务的目标调度优先级。 A weighting process, to obtain the target scheduling priority voice service.

m m

[0084] 如图2所示,上述步骤S140具体包括: [0084] As shown in FIG 2, the step S140 comprises:

[0085] 步骤S141,判断残留BLER是否小于第一残留阈值k %,如果是则将w ( τ m,TdiscardtiJ作为f(w( τ m,Tdiscardtiffle),Bresidual)(直接将时延因子作为调整函数,即不需要再调整),然后转入步骤S145,否则转步骤S142 ; [0085] step S141, the determined remaining residual BLER is smaller than a first threshold value k%, then if w (τ m, TdiscardtiJ as f (w (τ m, Tdiscardtiffle), Bresidual) (directly as a delay factor adjustment function , i.e., do not need to adjust), and then proceeds to step S145, the otherwise turn to step S142;

[0086] 步骤S142,判断残留BLER是否大于等于第一残留阈值k%并且小于第二残留阈值P%,如果是则在时延因子的基础上,适当提高语音业务的调度优先级,即按照w( τ m, [0086] step S142, the residual BLER is determined whether the residual is greater than a first threshold value equal to k% and less than a second threshold value residual P%, if the factor on the basis of the delay, an appropriate increase scheduling priority voice service, i.e., in accordance with w (τ m,

Tdiscardtime) +A 计算f (W ( 丁 Tdiscardtime) + A computing f (W (D

HOL,Tdiscardtime),^residual HOL, Tdiscardtime), ^ residual

),获得的该f(w( ), To obtain the f (w (

T HOL,Tdiscardtime),^residual^ ^ T HOL, Tdiscardtime), ^ residual ^ ^

第一调整函数(将时延因子与第一预设参数之和作为调整函数),然后转入步骤S145,否则转步骤S143 ; A first adjustment function (the first delay factor and preset parameter adjustment as a function of the sum), and then proceeds to step S145, the otherwise turn to Step S143;

[0087] 步骤S143,判断残留BLER是否大于等于第二残留阈值p%并且小于第三残留阈值m%,如果是则在时延因子的基础上,较大幅度地提高语音业务的调度优先级,即按照w ( τ H0L, Tdiscardtime) *B 计算f (w ( τ [0087] step S143, the determination whether or not remaining residual BLER equal to the second threshold value is greater than p% and less than a third threshold value remaining m%, if the factor on the basis of the delay, a more substantial increase scheduling priority voice service, i.e. according to w (τ H0L, Tdiscardtime) * B calculates f (w (τ

HOL? Tdiscardtime),^residual HOL? Tdiscardtime), ^ residual

),获得的该f (w( ), To obtain the f (w (

T HOL,^discardtime^, T HOL, ^ discardtime ^,

Bresidual)为第二调整函数(将时延因子与第二预设参数的乘积作为调整函数),然后转入步骤S145,否则转步骤S144 ; Bresidual) a second adjustment function (a product of the factor and the second preset delay parameter as a function of the adjustment), and then proceeds to step S145, the otherwise turn to Step S144;

[0088] 步骤S144,判断残留BLER是否大于等于第三残留阈值m%,如果是则将时延因子«( tHOL^ Tdiscardtime)作为f(W( Tm,T„),BMsidual)(直接将时延因子作为调整函数,即不需要再调整),然后转入步骤S145 ; [0088] step S144, the determined residual BLER is greater than a threshold value equal to the third remaining m%, if it is then the delay factor «(tHOL ^ Tdiscardtime) as f (W (Tm, T"), BMsidual) (directly to the delay adjustment factor as a function, i.e., do not need to adjust), and then proceeds to step S145;

[0089] 步骤S145,根据比例公平调度因子 [0089] step S145, the proportional fair scheduling factor in accordance with

Figure CN101877749BD00092

'以及根据时延因子与残留BLER的函数 'And the delay factor and residual BLER function according

f(w(TH0L, T—),Bresidual),按照前述的表达式(3)获得语音业务的目标调度优先级i?(f) f (w (TH0L, T -), Bresidual), according to the expression (3) to obtain the target voice service scheduling priority i (f)?

Figure CN101877749BD00093

'并可以将语音业务当前的调度优先级调整为该 'And the current voice traffic may be a scheduling priority for adjustment

目标调度优先级。 Target scheduling priority.

[0090] 在本实施例的一些实际应用中,时延因子w( τΜ,Τ—)如下述的表2所示,时延因子与残留BLER的函数关系f(w( T HOL,Tdiscardtime),^residual^ 如下述的表3 所ο [0090] In some practical applications of the present embodiment, the delay factor w (τΜ, Τ-) as shown in Table 2 below, a function f (w (T HOL, Tdiscardtime) delay factor of residual BLER, ^ residual ^ table 3 below ο

[0091]表 2w( τ H0L,Tdiscardtime)函数,Tdiscardtime — 80ms [0091] Table 2w (τ H0L, Tdiscardtime) function, Tdiscardtime - 80ms

[0092] [0092]

Figure CN101877749BD00094
Figure CN101877749BD00101

[0093]表 3 f (w ( τ H0L,Tdiscardtime),Bresidual)函数 [0093] Table 3 f (w (τ H0L, Tdiscardtime), Bresidual) function

[0094] [0094]

Figure CN101877749BD00102

[0095] 在其中一个实际应用中,是判断出残留BLER大于等于0.5% (0.5%为前述的第一残留阈值)并且小于1% (1%为前述的第二残留阈值),则在时延因子的基础上,适当提高语音业务的调度优先级,即获得第一调整函数f (W(T HOL,^discardtime^,^residual^ W ( T h〇l,Tdisc;aritiIJ+ll,然后再利用该第一调整函数对比例公平调度因子一进行加权处理,获得语 [0095] In one practical application, it is determined that residual BLER is not less than 0.5% (0.5% of the residues of the first threshold value) and less than 1% (1% of the residues of the second threshold value), then the delay factor on the basis of an appropriate increase scheduling priority voice service, i.e., to obtain a first adjustment function f (W (T HOL, ^ discardtime ^, ^ residual ^ W (T h〇l, tdisc; aritiIJ + ll, and then use the first adjustment function for a proportional fair scheduler weighting factor to obtain speech

音业务的目标调度优先级,即 Sound business objective scheduling priorities, namely

Figure CN101877749BD00103

[0097] 在另一个实际应用中,是判断出残留BLER大于等于1% (1%为前述的第二残留阈值)并且小于2% (2%为前述的第三残留阈值),则在时延因子的基础上,较大幅度地提高语音业务的调度优先级,即获得第二调整函数f (w(T HOL,^discardtime^,^residual^ W ( T h〇L, TdiSMritiIJ*3,然后再利用该第二调整函数对比例公平调度因子一进行加权处理,获得语 [0097] In another implementation, the residual BLER is judged not less than 1% (1% of the residues of the second threshold value) and less than two percent (2% of the residues of the third threshold value), then the delay factor based on more substantial increase scheduling priority voice service, i.e., obtain a second adjustment function f (w (T HOL, ^ discardtime ^, ^ residual ^ W (T h〇L, TdiSMritiIJ * 3, then using the second adjustment function for a proportional fair scheduler weighting factor to obtain speech

音业务的目标调度优先级,即 Sound business objective scheduling priorities, namely

Figure CN101877749BD00104

[0099] 实施例二、语音业务调度优先级的调整装置 Example II voice service scheduling priority adjustment means [0099] Embodiment

[0100] 如图3所示,本实施例主要包括第一更新模块310、第二更新模块320、第一获取模块330以及第二获取模块340,其中: [0100] As shown in FIG. 3, the present embodiment mainly comprises a first updating module 310, a second updating module 320, a first acquiring module 330, and a second acquisition module 340, wherein:

[0101] 第一更新模块310,用于在每个调度周期内,根据已传输数据包更新语音业务队列的残留块错误率; [0101] a first updating module 310, for each scheduling period, update residual block error rate of the packet voice service according to the transmitted data queue;

[0102] 第二更新模块320,与该第一更新模块310相连,用于判断出语音业务队列中第一个数据包的等待时间超过丢弃时间时,更新该残留块错误率; [0102] The second updating module 320, and update module 310 is connected to the first, it is determined that the waiting time for voice traffic in the first queue packet exceeds a cancellation time, updating the residual block error rate;

[0103] 第一获取模块330,用于获得语音业务队列的时延因子; [0103] The first acquiring module 330, the voice traffic delay factor for obtaining the queue;

[0104] 第二获取模块340,与该第二更新模块320及第一获取模块330相连,用于根据比例公平调度因子,以及残留块错误率及时延因子,获得语音业务的目标调度优先级。 [0104] The second acquiring module 340, updating module 320, and the second is connected to the first acquiring module 330, a proportional fair scheduling factor, and in accordance with the residual block error rate and delay factor to obtain a voice service and a target scheduling priority.

[0105] 其中,第一获取模块330用于根据等待时间及丢弃时间,获得时延因子。 [0105] wherein the obtaining module 330 according to a first latency time and discarded, to obtain delay factors.

[0106] 其中,第二获取模块340包括预设单元、判断单元、第一获取单元以及第二获取单元,其中: [0106] wherein the second acquiring module 340 includes a preset unit, a determining unit, a first acquiring unit and the second obtaining unit, wherein:

[0107] 预设单元,用于预设残留阈值; [0107] presetting unit, for a predetermined residual threshold;

[0108] 判断单元,与该预设单元相连,用于判断出残留块错误率与残留阈值的大小关系; [0108] determination unit, the presetting unit is connected, for determining the remaining residual block error rate and the magnitude relationship between a threshold value;

[0109] 第一获取单元,与该判断单元相连,用于根据该大小关系,以及残留块错误率及时延因子获得调整函数; [0109] a first obtaining unit, is connected to the determination unit and delay factor for the basis of the magnitude relationship, and the obtained residual block error rate adjustment function;

[0110] 第二获取单元,与该第一获取单元相连,用于利用调整函数对比例公平调度因子进行加权处理,获得语音业务的目标调度优先级。 [0110] a second obtaining unit, is connected to the first acquiring unit, using the adjustment function for the proportional fair scheduler weighting factors to obtain a target voice service scheduling priority.

[0111]其中, [0111] wherein,

[0112] 预设单元用于预设第一残留阈值、第二残留阈值及第三残留阈值,第二残留阈值大于第一残留阈值且小于第三残留阈值; [0112] The residue presetting unit for presetting a first threshold value, the second threshold value and the third remaining residual threshold value, the second threshold value is greater than a first residual residual residual threshold and less than a third threshold value;

[0113] 第一获取单元用于判断单元判断出残留块错误率小于第一残留阈值或者大于等于第三残留阈值时,将时延因子作为调整函数; [0113] a first obtaining unit for judging unit judges that the residual block error rate is less than a first threshold or the residue remaining equal to the third threshold value is greater than the delay adjustment factor as a function;

[0114] 第一获取单元用于判断单元判断出残留块错误率大于等于第一残留阈值且小于第二残留阈值时,将时延因子与一第一预设参数之和作为调整函数; [0114] a first obtaining unit for judging means determines that the residual block error rate is greater than equal to a first threshold value and the remaining residue is less than the second threshold value, the first preset delay factor and a parameter adjustment as a function of the sum;

[0115] 第一获取单元用于判断单元判断出残留块错误率大于等于第二残留阈值且小于第三残留阈值时,将时延因子与一第二预设参数之积作为调整函数。 [0115] a first obtaining unit for judging unit judges that the residual block error rate is not less than a second threshold and less than a third remaining residue threshold value, and a second predetermined time delay factor of the product as a parameter adjustment function.

[0116] 现有技术方案都是基于在调度算法中引入等待时间或者队列长度来保证VoIP业务的时延,而本发明的技术方案与现有技术仅基于时延因子的语言业务调度优先级计算方法相比,在考虑时延因子的基础上引入残留BLER —并考虑,可以在中等语音业务用户数时降低用户残留BLER,改善某些用户的通话质量,并进一步提高语音业务用户容量。 [0116] Prior art solutions are based on the introduction of the waiting time in the queue length or scheduling algorithm to ensure that the delay of the VoIP service, and the aspect of the present invention and the prior art only based language service scheduling priority calculation delay factor compared with the method, the delay factor is introduced in consideration of the residual BLER - and consider, the user can be reduced at moderate residual BLER voice service users, to improve the call quality of some users, and further improve the capacity of the voice service users.

[0117] 虽然本发明所揭露的实施方式如上,但所述的内容只是为了便于理解本发明而采用的实施方式,并非用以限定本发明。 [0117] While the disclosed embodiment of the present invention described above, the embodiment of the content only to facilitate understanding of the present invention is employed, the present invention is not limited thereto. 任何本发明所属技术领域内的技术人员,在不脱离本发明所揭露的精神和范围的前提下,可以在实施的形式上及细节上作任何的修改与变化,但本发明的专利保护范围,仍须以所附的权利要求书所界定的范围为准。 Any skilled person in the art the present invention belongs art, without departing from the spirit and scope of the present invention is disclosed, and modifications may be made any changes in form and details of the embodiments, but the scope of the present invention patent, still in the appended claims define the scope of equivalents.

Claims (4)

  1. 1.一种语音业务调度优先级的调整方法,其特征在于,包括: 在每个调度周期内,根据已传输数据包更新语音业务队列的残留块错误率; 判断出所述语音业务队列中第一个数据包的等待时间超过丢弃时间时,更新所述残留块错误率; 根据所述等待时间及丢弃时间,获得所述语音业务队列的时延因子; 根据比例公平调度因子,以及所述残留块错误率及时延因子,获得所述语音业务的目标调度优先级,包括:判断出所述残留块错误率与预设的残留阈值的大小关系;根据所述大小关系,以及所述残留块错误率及时延因子获得调整函数;利用所述调整函数对所述比例公平调度因子进行加权处理,获得所述语音业务的所述目标调度优先级。 CLAIMS 1. A method for adjusting priority voice service scheduling, wherein, comprising: in each scheduling period, according to the residual block error rate of transmitted data packet queue update voice service; determining that the voice service of the queue when a waiting time of packet discards over time, updating the residual block error rate; and discarded according to the latency time, obtaining the voice service queue delay factor; the proportional fair scheduling factor, and the residue block error rate and delay factor, obtaining the target voice service scheduling priority, comprising: determining the size relationship of the residual block error rate and a predetermined residual threshold; for the magnitude relationship, and the residual block according to the error obtain rate and delay factor adjustment function; proportional fair scheduling the weighting factor using the adjustment function, a voice service to obtain the target scheduling priority.
  2. 2.根据权利要求1所述的方法,其特征在于,根据所述大小关系,以及所述残留块错误率及时延因子获得所述调整函数的步骤,包括: 所述残留阈值包括第一残留阈值、第二残留阈值及第三残留阈值,所述第二残留阈值大于所述第一残留阈值且小于所述第三残留阈值; 判断出所述残留块错误率小于所述第一残留阈值或者大于等于所述第三残留阈值时,将所述时延因子作为所述调整函数; 判断出所述残留块错误率大于等于所述第一残留阈值且小于所述第二残留阈值时,将所述时延因子与一第一预设参数之和作为所述调整函数; 判断出所述残留块错误率大于等于所述第二残留阈值且小于所述第三残留阈值时,将所述时延因子与一第二预设参数之积作为所述调整函数; 判断出所述残留块错误率大于等于所述第三残留阈值时,将所述时延因子作为所述调整 2. The method according to claim 1, characterized in that, according to the magnitude relation, the residual block error rate and the step of obtaining the factor and delay adjusting function, comprising: a remaining residual threshold comprises a first threshold value , a second and a third threshold value remaining residual threshold value, the second threshold value is remaining greater than the first threshold value and less than the remaining residual third threshold value; determining that the residual block error rate is less than the first threshold value or greater than the residual the residue is equal to the third threshold value, the delay factor as a function of the adjustment; when it is determined that the residual block error rate is greater than or equal to the first threshold value and less than the remaining residual second threshold value, the a delay factor and a sum of a first predetermined parameter as a function of the adjustment; when it is determined that the residual block error rate is greater than or equal to the second threshold value and less than the remaining residual third threshold value, the delay factor and a product of a second predetermined parameter of the adjustment function; determines that the residual block error rate is greater than or equal to the third threshold residual value, as the adjustment of the delay factor 数。 Number.
  3. 3.一种语音业务调度优先级的调整装置,其特征在于,包括第一更新模块、第二更新模块、第一获取模块以及第二获取模块,其中: 所述第一更新模块,用于在每个调度周期内,根据已传输数据包更新语音业务队列的残留块错误率; 所述第二更新模块,用于判断出所述语音业务队列中第一个数据包的等待时间超过丢弃时间时,更新所述残留块错误率; 所述第一获取模块,用于根据所述等待时间及丢弃时间,获得所述语音业务队列的时延因子; 所述第二获取模块,用于根据比例公平调度因子,以及所述残留块错误率及时延因子,获得所述语音业务的目标调度优先级; 其中,所述第二获取模块包括预设单元、判断单元、第一获取单元以及第二获取单元,其中: 所述预设单元, 用于预设残留阈值; 所述判断单元,用于判断出所述残留块错误率与所述残 A scheduling priority voice service control device, wherein the updating module comprises a first, a second updating module, a first and a second acquisition module acquiring module, wherein: the first updating module, configured to in each scheduling cycle, according to the residual block error rate of transmitted data packet voice service update queue; and the second updating module, for voice traffic when the queue is determined that the first packet latency time exceeds the discard updating the residual block error rate; the first acquiring module, according to the latency time and discarded, to obtain the voice service queue delay factor; the second obtaining module, according to the proportional fair scheduling factor, and the residual block error rate and delay factor, obtaining the target voice service scheduling priority; wherein said second module includes a preset acquiring unit, a determining unit, a first unit and a second acquisition unit acquires , wherein: the preset unit for presetting a threshold residual value; a determining means for determining that the residual block error rate and the residue 阈值的大小关系; 所述第一获取单元,用于根据所述大小关系,以及所述残留块错误率及时延因子获得调整函数; 所述第二获取单元,用于利用所述调整函数对所述比例公平调度因子进行加权处理,获得所述语音业务的所述目标调度优先级。 Threshold magnitude relation; the first obtaining unit, and delay a factor according to the magnitude relation, and the obtained residual block error rate adjustment function; the second acquisition unit, by using the adjustment function for the said weighting factor proportional fair scheduler process to obtain the objectives of the voice service scheduling priority.
  4. 4.根据权利要求3所述的装置,其特征在于: 所述预设单元用于预设第一残留阈值、第二残留阈值及第三残留阈值,所述第二残留阈值大于所述第一残留阈值且小于所述第三残留阈值; 所述第一获取单元用于所述判断单元判断出所述残留块错误率小于所述第一残留阈值或者大于等于所述第三残留阈值时,将所述时延因子作为所述调整函数; 所述第一获取单元用于所述判断单元判断出所述残留块错误率大于等于所述第一残留阈值且小于所述第二残留阈值时,将所述时延因子与一第一预设参数之和作为所述调整函数; 所述第一获取单元用于所述判断单元判断出所述残留块错误率大于等于所述第二残留阈值且小于所述第三残留阈值时,将所述时延因子与一第二预设参数之积作为所述调整函数。 4. The apparatus according to claim 3, wherein: the presetting unit for presetting a first threshold residual value, a second threshold value and the third remaining residual threshold value, the second threshold value is greater than the first residue the residue threshold and less than the third threshold residue; said first means for obtaining the judgment unit judges that the residual block error rate is less than the first threshold value or greater than a residual equal to the third threshold residual value, the delay factor as a function of the adjustment; the first acquisition unit for the determination unit determines the residual block error rate is greater than or equal to the first threshold value and less than the remaining residual second threshold value, the delay factor and a sum of a first predetermined parameter as a function of the adjustment; the first means for obtaining the judgment unit judges that the residual block error rate is greater than or equal to the second threshold value and less than the residual said third residual threshold, the delay factor and the product of a second predetermined parameter as a function of the adjustment. ` `
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