CN1713633B - Control method of network flow - Google Patents

Control method of network flow Download PDF

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CN1713633B
CN1713633B CN 200410049816 CN200410049816A CN1713633B CN 1713633 B CN1713633 B CN 1713633B CN 200410049816 CN200410049816 CN 200410049816 CN 200410049816 A CN200410049816 A CN 200410049816A CN 1713633 B CN1713633 B CN 1713633B
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window size
side
congestion
rnc
rlc entity
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CN 200410049816
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CN1713633A (en
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张华�
李伽
楚志远
汤正华
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华为技术有限公司
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Abstract

When the network congestion is detected, decreases the window of transmission end of RLC entity at RNC side, or decreases window of reception end of RLC entity at RNC side, and indicates RLC entity at UE side to change window of transmission end. When the network congestion is released, gradually increases the window of reception end of RLC entity at RNC side, or gradually increases window of reception end of RLC entity at RNC side and window of transmission end of RLC entity at UE side. When the size of window exceeds preset value, recovers windows size configured at no congestion time.

Description

一种网络流量控制的方法 A method of controlling network traffic

技术领域 FIELD

[0001] 本发明涉及无线资源管理技术,特别是涉及一种网络流量控制的方法。 [0001] The present invention relates to radio resource management, particularly to a method of controlling network traffic.

背景技术 Background technique

[0002] 在无线信号传输过程中,分组交换(Packet Switch, PS)业务具有突发特性,大量突发数据可能导致网络拥塞和系统稳定性下降。 [0002] In the wireless signal transmission, a packet switched (Packet Switch, PS) service having a burst characteristic, a large amount of data may lead to network congestion burst and system stability. 所以,如何快速有效地通过实施流量控制使网络从拥塞状态下恢复,是无线资源管理技术的关键技术之一。 So, how to quickly and effectively control the network traffic by implementing recovery from the congestion state, it is one of the key radio resource management technologies.

[0003] 目前的流量控制方法一般采用控制传输信道传输格式组合集(TransportFormat Combine Set, TFCS)的方法,通过网络层(Network Layer, L3)的传输信道重配置信令减小PS业务对应传输信道的传输格式(Transport Format, TF) , TF为nX传输块的长度(Transport Block, TB),此处,n是从0到12的整数, 一个TB的长度是336比特。 [0003] Current flow control method is generally used method of controlling a transmission channel transport format combination set (TransportFormat Combine Set, TFCS), the reconfiguration signaling reduce PS service corresponding to the transmission channel through a transmission channel network layer (Network Layer, L3) of transport format (transport format, TF), TF is the length of the transport block nX (transport block, TB), here, n is an integer of from 0 to 12, TB is a length of 336 bits. 例如,对于384业务,10毫秒传输时间间隔(Transmission Time Interval, TTI)的情况,满速率最大TF为12TB。 For example, for the 384 service, where 10 ms TTI (Transmission Time Interval, TTI), and TF is over the maximum rate 12TB. 当拥塞发生时,根据当前拥塞情况,将最大TF中的n设为小于12的值,一方面通过内部消息控制网络侧介质访问控制专用信道(MediumAccess Control Dedicate, MACD) 的最大可用TF;另一方面可以通过传输信道重配置信令减小用户设备(User Equipment) 侧MACD可使用的最大TF,从而达到减小空口数据流量,降低空口干扰的目的。 When congestion occurs, the current congestion, the maximum TF n to a value of less than 12, on the one hand the control dedicated channel (MediumAccess Control Dedicate, MACD) internal message network media access controls by the maximum available TF; other aspects may be reconfigured by reducing the maximum transmission channel signaling TF user equipment (user equipment) side MACD can be used to achieve the reduced flow of air interface data, air interface interference reduction purposes. 当空口负载减轻,则提高网络侧和UE侧可用的最大TF,为了避免由于TF恢复过快而再次导致网络拥塞,需要对TF的恢复进行平滑处理。 When reducing the load of the air interface, the increase in the maximum TF network side and the UE side can be used, in order to avoid excessive TF restored again lead to network congestion, the need for recovery TF smoothed. [0004] 现有技术的方法存在以下几个弊病: [0004] there are several shortcomings of prior art methods:

[0005] 首先,控制传输格式最大TF,虽然空口的数据量减少,但是每个用户在每个TTI仍然可以发送数据,对空口负载的降低有限,用户之间相互碰撞的概率较大,从而相互干扰的几率较大。 [0005] First, control the maximum transport format TF, while reducing the amount of data in the air interface, but each user can still transmit data at each the TTI, limited reduction in the load on the air interface, the probability of collision between users is large, so that each greater chance of interference.

[0006] 其次,对上行拥塞的控制需要通过网络层信令,控制速度较慢。 [0006] Next, control of the uplink congestion control signaling network layer need slow. 而且,如果系统存在较大干扰,传送网络层信令容易引起信令无线承载(RadioBearer, RB)复位,导致无线资源控制(Radio Resource Control,RRC)连接释放。 Further, if there is a large system interference likely to cause signaling transport network layer signaling radio bearer (RadioBearer, RB) is reset, resulting in RRC (Radio Resource Control, RRC) connection release. 另外当拥塞发生时,需同时对小区内所有UE发送信令,传输这部分信令对网络侧的负担较大。 In addition, when congestion occurs, the UE needs to transmit simultaneously for all signaling within a cell, this part of the signaling load on the transmission network side is large.

[0007] 第三,拥塞恢复时,由于TF可选格式较少,空口速率控制粒度较大,无法有效地对TF的增加和减小进行平滑处理,容易在拥塞恢复后使网络再次陷入拥塞状态。 [0007] Third, when the congestion recovery, since less format TF Alternatively, the air interface rate control a large particle size can not be effectively increased and decreased TF smoothing processing, congestion in the network easily restored into the congestion state again .

发明内容 SUMMARY

[0008] 本发明的主要目的在于提供一种网络流量控制的方法,有效地控制网络拥塞,并在拥塞消除后的恢复期内有效地平滑空口数据速率的升高。 [0008] The main object of the present invention is to provide a method of controlling network traffic and network congestion control effectively, efficiently and smoothly the air interface data rate is increased in the recovery period after a congestion resolution. [0009] 本发明的目的是通过如下技术方案实现的: [0010] —种网络流量控制的方法,包括以下步骤: [0009] The object of the present invention is achieved by the following technical solutions: [0010] - flow control method of such networks, comprising the steps of:

[0011] A、无线网络控制器RNC判断网络是下行拥塞还是上行拥塞,如果下行方向拥塞, 转到步骤B,如果上行方向拥塞,则转到步骤C ;[0012] B、减小RNC侧无线链路控制RLC实体发送端窗口尺寸,然后结束; [0013] C、减小用户设备UE侧RLC实体发送端窗口尺寸,然后结束; [0011] A, radio network controller RNC determines network congestion is downlink or uplink congestion, congestion direction if the downlink, go to step B, and if the uplink is congested, then go to step C; [0012] B, RNC-side radio reduced link control RLC entity transmitting side window size, and then end; [0013] C, to reduce the side RLC entity the user equipment UE ends transmission window size, and then end;

[0014] 所述RNC判断网络是下行拥塞还是上行拥塞是RNC根据无线链路检测到的上行和 [0014] The RNC determines network congestion is downlink or uplink congestion is detected by the RNC a radio link and uplink

下行载波功率实现,如果下行载波功率超过系统设定的拥塞门限,则确定为下行拥塞;如果 Downlink carrier power to achieve, if the downlink carrier power exceeds the threshold set by the system congestion, congestion is determined for the downlink; if

上行载波功率超过系统设定的拥塞门限,则确定为上行拥塞。 Uplink carrier power exceeds the congestion threshold set by the system, it is determined that the uplink congestion.

[0015] 步骤C之前进一步包括:减小RNC侧RLC实体接收端窗口尺寸, Before [0015] Step C further comprising: reducing the RNC side RLC entity receiving side window size,

[0016] 步骤C所述减小UE侧RLC实体发送端窗口尺寸是根据接收到的RNC侧RLC实体 [0016] Step C the RLC entity at the UE side is reduced window size is the transmitting side RLC entity based on the received RNC side

发来的包含一窗口尺寸的窗口尺寸超域,将UE侧RLC实体发送端窗口尺寸改变为窗口尺寸 Sent to the window size comprises a window size super field, a transmitting side RLC entity at the UE side window size to the window size changed

超域中的窗口尺寸实现,所述窗口尺寸超域中包含的窗口尺寸为RNC侧RLC实体接收端窗 Window size super field implementation, a window size super field contains the window size of the receiving side RLC entity RNC side window

口尺寸。 Port size.

[0017] 步骤B所述减小RNC侧RLC实体发送端窗口尺寸的方法为: Method [0017] Step B side RLC entity of the RNC to reduce the window size of the transmitting side:

[0018] 根据下行分组交换业务速率确定下行流控RLC窗口尺寸; [0018] The downlink packet switched service rate determining the downlink flow control RLC window size;

[0019] RNC侧RLC实体将发送端窗口尺寸设置为小于下行流控RLC窗口尺寸。 [0019] RNC side transmitting side RLC entity will set the window size is smaller than the downstream control RLC window size.

[0020] 步骤C所述减小UE侧RLC实体接收端窗口尺寸的方法为: Method [0020] Step C the RLC entity at the UE side is reduced window size of the receiving end:

[0021] 根据上行分组交换业务速率确定上行流控RLC窗口尺寸; [0021] determined that the uplink RLC flow control window size according to the uplink rate packet switched service;

[0022] UE侧RLC实体将发送端窗口尺寸设置为小于上行流控RLC窗口尺寸。 [0022] UE-side RLC entity transmitting window size smaller than the upstream end of the flow control RLC window size.

[0023] 步骤B所述下行流控RLC窗口尺寸为:空口时延乘以拥塞时的下行分组交换业务 [0023] Step B downstream of the RLC window size for the control: air interface delay time multiplied downlink packet switched traffic congestion

速率的积除以一个传输块的有效比特数所得的商。 Rate divided by the product of the number of significant bits of the quotient of a transport block.

[0024] 步骤C所述上行流控RLC窗口尺寸为:空口时延乘以拥塞时的上行分组交换业务速率的积除以一个传输块的有效比特数所得的商。 [0024] Step C the RLC window size control upstream of: multiplying the delay of the uplink air interface during congestion packet-switched traffic rate obtained by dividing the product of the number of significant bits of the quotient of a transport block.

[0025] 步骤B所述下行流控RLC窗口尺寸为:拥塞时下行分组交换业务速率与无拥塞时 Downlink packet switched traffic rate when no congestion when congestion: [0025] Step B of the flow control window size of the downlink RLC

下行分组交换业务速率之比乘以系统配置的RNC侧RLC实体发送端窗口尺寸的积。 Ratio of downlink packet-switched traffic rate multiplied by the system configuration RNC side RLC entity of the transmitting window size of the end product.

[0026] 步骤C所述上行流控RLC窗口尺寸为:拥塞时上行分组交换业务速率与无拥塞时 [0026] Step C the RLC window size control upstream of: exchanging uplink packet traffic congestion no congestion rate

上行分组交换业务速率之比乘以系统配置的RNC侧RLC实体接收端窗口尺寸的积。 Packet-switched traffic than the uplink rate multiplied by the system configuration RNC side RLC entity of the receiving side window size product.

[0027] 步骤B所述减小RNC侧RLC实体发送端窗口尺寸之后,进一步包括: After [0027] Step B side RLC entity of the RNC to reduce the window size transmitting side, further comprising:

[0028] Bl、 RNC判断下行拥塞是否解除,如果是,则转到步骤B2 ;否则结束; [0028] Bl, RNC determines whether to terminate a downlink congestion, if yes, go to step B2; otherwise, ending;

[0029] B2、增加RNC侧RLC实体发送端窗口尺寸。 [0029] B2, increasing the window size RNC side transmitting side RLC entity.

[0030] 步骤C所述减小UE侧RLC实体改变发送端窗口尺寸之后,进一步包括: [0031] Cl、 RNC判断上行拥塞是否解除,如果是,则转到步骤C2 ;否则结束; [0032] C2、增加UE侧RLC发送端窗口尺寸。 After [0030] Step C the RLC entity at the UE side is reduced to change the window size transmitting side, further comprising: [0031] Cl, RNC determines whether to terminate an uplink congestion, if yes, go to step C2; otherwise, ending; [0032] C2, increasing the UE side RLC transmission window size end.

[0033] 步骤Bl所述RNC判断下行拥塞是否解除是通过判断无线链路检测到的下行载波 [0033] Step Bl the RNC determines whether to terminate the downlink congestion is detected by determining the downlink radio link carrier

功率是否小于系统设定的拥塞门限实现,如果下行载波功率小于该拥塞门限,则确定下行 Power is less than a congestion threshold set by the system to achieve the door, if the downlink carrier power is less than the threshold of congestion, determining downlink

拥塞已经解除;如果下行载波功率大于或等于该拥塞门限,则确定下行拥塞未解除。 Congestion has been released; if the downlink carrier power is greater than or equal to the threshold of congestion, the congestion is determined that the downlink is not canceled.

[0034] 步骤Cl所述RNC判断上行拥塞是否解除是通过判断无线链路检测到的上行载波 [0034] Step Cl uplink congestion, the RNC determines whether releasing is detected by determining the uplink radio link carrier

功率是否小于系统设定的拥塞门限实现,如果上行载波功率小于该拥塞门限,则确定上行 Power is less than a congestion threshold set by the system to achieve the door, if the uplink carrier power is less than the congestion threshold, it is determined that the uplink

拥塞已经解除;如果上行载波功率大于或等于该拥塞门限,则确定上行拥塞未解除。 Congestion has been released; if the uplink carrier power is greater than or equal to the threshold of congestion, the congestion is not determined that the uplink is released.

[0035] 步骤B2所述增加RNC侧RLC实体发送端窗口尺寸的方法为:RNC侧RLC实体发送 [0035] Step B2 a method of increasing the RNC side RLC entity of the transmitting side window size: RNC transmitting side RLC entity

端窗口尺寸从拥塞时的发送端窗口尺寸开始,随拥塞解除的时间的增加而增大。 End of the window size from the transmitting side a congestion window size at the start, with increasing time of releasing congestion increases.

[0036] 步骤C2所述增加UE侧RLC实体发送端窗口尺寸的方法为:UE侧RLC实体发送端窗口尺寸从拥塞时的发送端窗口尺寸开始,随拥塞解除的时间的增加而增大。 The method of transmitting side window size [0036] The step C2 is increased UE side RLC entity: UE side window size RLC entity transmitting side from the transmitting side a congestion window size at the start, with increasing time of releasing congestion increases.

[0037] 步骤B2所述增加RNC侧RLC实体发送端窗口尺寸的方法为:RNC侧RLC实体根据 [0037] Step B2 a method of increasing the RNC side RLC entity of the transmitting side window size: The RNC side RLC entity

拥塞时的发送端窗口尺寸和无线链路检测到的下行重传率确定RNC侧RLC实体发送端窗口尺寸。 Window size and the transmission side radio link congestion downlink retransmission rate detected is determined window size RNC side transmitting side RLC entity.

[0038] 所述RNC侧RLC实体发送端窗口尺寸是:拥塞时的RNC侧RLC实体发送端窗口尺寸加下行重传率之和。 [0038] The RNC side transmitting side RLC entity window size is: RNC side transmitting RLC entity when the congestion window size plus the sum of downlink retransmission rate side.

[0039] 步骤C2所述增加UE侧RLC实体发送端窗口尺寸的方法为:UE侧RLC实体根据拥塞时的发送端窗口尺寸和无线链路检测到的上行误块率确定UE侧RLC实体发送端窗口尺寸。 [0039] Step C2 side RLC entity of the UE to increase the transmitting side window size method: the UE side, an uplink block error rate detected by the RLC entity of the transmitting side and the window size is determined radio link congestion UE side RLC entity of the transmitting side window size.

[0040] 所述UE侧RLC实体发送端窗口尺寸是:拥塞时的UE侧RLC实体发送端窗口尺寸加上行误块率之和。 [0040] The UE-side side RLC entity transmitting window size is: at the UE side RLC entity transmitting the congestion window size plus the end of the row and the block error rate.

[0041] 步骤B2之后进一步包括:判断RNC侧RLC实体发送端窗口尺寸是否大于或等于下行RLC窗口阈值,如果是,则RNC侧RLC实体将发送端窗口尺寸设置为系统配置的RNC侧RLC实体发送端窗口尺寸,然后结束;否则返回步骤Bl。 [0041] After step B2 further comprises: determining the RNC side RLC entity of the transmitting side window size is greater than or equal to a downlink RLC window threshold value, if yes, the RNC side RLC entity sends the RNC-side RLC entity window size configured for the system sends end of the window size, and then end; otherwise, returns to step Bl.

[0042] 步骤C2之后进一步包括:判断UE侧RLC实体发送端窗口尺寸是否大于或等于上行RLC窗口阈值,如果是,则UE侧RLC实体将发送端窗口尺寸设置为系统配置的RNC侧RLC 实体接收端窗口尺寸,然后结束;否则返回步骤Cl。 [0042] After step C2 further comprising: determining UE side RLC entity of the transmitting side window size is greater than or equal to the uplink RLC window threshold value, and if so, the UE side RLC entity sends the RNC-side RLC entity window size configured for the system receives end of the window size, and then end; otherwise, returns to step Cl.

[0043] 所述下行RLC窗口阈值是系统配置的RNC侧RLC实体发送端窗口尺寸。 [0043] The threshold is a downlink RLC window RNC side RLC entity of the system end configured transmission window size.

[0044] 所述上行RLC窗口阈值是系统配置的RNC侧RLC实体接收端窗口尺寸。 [0044] The uplink RLC window is the window size threshold RNC side RLC entity of the system configuration of a receiving terminal.

[0045] 步骤B所述RNC侧RLC实体将发送端窗口尺寸设置为小于下行流控RLC窗口尺寸 [0045] Step B RNC side RLC entity of the transmitting side smaller than the window size is set to the downlink flow control window size RLC

之后,进一步包括: After that, further including:

[0046] Bl、 RNC判断下行拥塞是否解除,如果是,则转到步骤B2 ;否则结束; [0047] B2、增加RNC侧RLC实体发送端窗口尺寸。 [0046] Bl, RNC determines whether to terminate a downlink congestion, if yes, go to step B2; otherwise, ending; [0047] B2, increasing the window size RNC side transmitting side RLC entity.

[0048] 步骤C所述UE侧RLC实体将发送端窗口尺寸设置为小于上行流控RLC窗口尺寸之后,进一步包括: [0048] Step C UE side RLC entity of the transmitting window size smaller than an upstream end of control after the RLC window size, further comprising:

[0049] CI、 RNC判断上行拥塞是否解除,如果是,则转到步骤C2 ;否则结束; [0050] C2、增加UE侧RLC发送端窗口尺寸。 [0049] CI, RNC determines whether to terminate an uplink congestion, if yes, go to step C2; otherwise, ending; [0050] C2, the UE side to increase the transmission side RLC window size.

[0051] 步骤B2之后进一步包括:判断RNC侧RLC实体发送端窗口尺寸是否大于或等于下行RLC窗口阈值,如果是,则RNC侧RLC实体将发送端窗口尺寸设置为系统配置的RNC侧RLC实体发送端窗口尺寸,然后结束;否则返回步骤Bl。 [0051] After step B2 further comprises: determining the RNC side RLC entity of the transmitting side window size is greater than or equal to a downlink RLC window threshold value, if yes, the RNC side RLC entity sends the RNC-side RLC entity window size configured for the system sends end of the window size, and then end; otherwise, returns to step Bl.

[0052] 步骤C2之后进一步包括:判断UE侧RLC实体发送端窗口尺寸是否大于或等于上行RLC窗口阈值,如果是,则UE侧RLC实体将发送端窗口尺寸设置为系统配置的RNC侧RLC 实体接收端窗口尺寸,然后结束;否则返回步骤Cl。 [0052] After step C2 further comprising: determining UE side RLC entity of the transmitting side window size is greater than or equal to the uplink RLC window threshold value, and if so, the UE side RLC entity sends the RNC-side RLC entity window size configured for the system receives end of the window size, and then end; otherwise, returns to step Cl.

[0053] 所述下行RLC窗口阈值是:下行流控RLC窗口尺寸与一系数的乘积和系统配置的RNC侧RLC实体发送端窗口尺寸两者中的最小值。 [0053] The downlink RLC window threshold value is: RNC downstream side RLC entity RLC window size control system and multiplied by a coefficient of the minimum configuration of a transmission window size in both ends.

[0054] 所述上行RLC窗口阈值是:上行流控RLC窗口尺寸与一系数的乘积和系统配置的上行RNC侧RLC实体接收端窗口尺寸两者中的最小值。 [0054] The uplink RLC window threshold value is: upstream side RLC entity upstream RNC RLC window size control system and multiplied by a coefficient of the minimum configuration of a receiving window size in both ends.

[0055] 本发明提供了一种网络流量控制的方法,该方法是在检测到网络发生拥塞时,减小RNC侧RLC实体的发送端窗口尺寸,或者减小UE侧RLC实体发送端窗口尺寸。 [0055] The present invention provides a method of network traffic control, which is detected when the congestion occurs in the network, reducing the window size RNC side transmitting side RLC entity, or to reduce the window size RLC entity of the UE side transmitting end. 在检测到网络拥塞解除时,逐渐增加RNC侧RLC实体的发送端窗口尺寸,或逐渐增加UE侧RLC实体的发送端窗口尺寸,在窗口尺寸超过设定阈值时,恢复无拥塞时网络配置的窗口尺寸。 Upon detecting network congestion is removed, increasing the transmitting side window size RNC side RLC entity, or increasing the transmission side window size at the UE side RLC entity, exceeds the threshold value is set in the window size, the recovery window congestion-free network configuration size. 现有技术的拥塞控制方法是利用控制TFCS的方法,通过L3的传输信道重配置信令减小PS业务对应传输信道的传输格式,当发生拥塞时,根据拥塞情况,一方面通过内部消息控制网络侧MACD的最大可用TF,另一方面通过传输信道重配置信令减小UE侧MACD可使用的最大TF, 减小空口数据流量;当空口负载减轻,则提高网络侧和UE侧可用的最大TF。 Congestion control method using the prior art method of controlling the TFCS, through a transport channel reconfiguration signaling reduced the L3 PS service transmission channel corresponding to a transmission format, when congestion occurs, according to the congestion situation, on the one hand via an internal message network control TF is the maximum available MACD side, on the other hand through a transport channel reconfiguration signaling to reduce the maximum TF MACD UE side can be used to reduce air interface traffic data; when the load becomes the air interface, the increase in the maximum network side and the UE side TF available . 从本发明和现有技术的对比可以看出,本发明的网络流量控制的方法是控制RNC侧和UE侧RLC实体的发送和接收窗口尺寸,从而控制用户不发送数据或降低用户发送数据包的数量,而现有技术是不改变接收或发送的窗口尺寸,仅控制TF,虽然也能降低数据流量,可是用户之间碰撞和干扰的概率仍然较大。 From the comparison of the present invention and the prior art, the present invention is a method of network traffic control transmitting and receiving window size control RNC and the UE-side side RLC entity, thereby controlling or reducing the user does not transmit user data packets transmitted number, while the prior art does not change the window size is transmitted or received, only the control TF, while data traffic can be reduced, but the probability of collision and the interference between users is still large. 所以,本发明能够更有效地控制网络的拥塞。 Therefore, the present invention can more effectively control the network congestion.

[0056] 其次,在本发明的方法中,RNC侧RLC实体通过RLC子层的信令指示UE侧RLC实体改变窗口尺寸,而在现有技术的方法中,RNC侧指示UE侧改变最大可用的TF是通过网络层信令实现的,从现有技术和本发明的对比可以看出,现有技术的方法控制速度较慢,而且拥塞发生时,传输这部分信令对网络侧的负担较大。 [0056] Next, in the process of the present invention, the RNC-side RLC entity through a signaling indicating the UE side RLC entity the RLC sublayer changing the window size, whereas in the prior art method, the RNC instructs the UE side to side to change the maximum available TF is achieved by a signaling network layer, can be seen from the comparison of the present invention and the prior art, the prior art method of controlling the speed is slow, and when congestion occurs, the transmission of this part of the network signaling load is large . 所以,本发明的方法能够快速控制网络拥塞。 Therefore, the method of the present invention is capable of quickly controlling network congestion.

[0057] 第三,在本发明的方法中,拥塞恢复时,根据下行重传率或时间的增加,或上行误块率或时间的增加确定恢复期间的窗口尺寸,窗口尺寸的变化范围比较大,可对其增加和减小进行有效的平滑处理,而在现有技术的方法中,拥塞恢复时,增大TF,但是TF的可选格式很少,所以对空口速率控制粒度较大,无法有效地对TF的增加和减小进行平滑处理,容易在拥塞恢复后使网络再次陷入拥塞状态。 Window size during [0057] Third, in the process of the present invention, congestion recovery, according to an increase of downlink retransmission rate or time, increasing the block error rate or uplink or the recovery time is determined, the variation range of the window size is relatively large , smoothing processing can be efficiently performed its increase and decrease, but in the method of the prior art, congestion recovery, increased TF, TF but few alternative format, so the air interface rate control a large particle size, can not be effectively increased and decreased TF smoothing processing, congestion in the network easily restored into the congestion state again. 所以,本发明的方法能够在网络拥塞的恢复期更有效地平滑窗口尺寸的变化,避免网络再次陷入拥塞状态。 Therefore, the method of the present invention can be more effectively smoothly varying window size in network congestion recovery, again into avoid network congestion state.

附图说明 BRIEF DESCRIPTION

[0058] 图1是网络中RLC实体的结构示意图。 [0058] FIG. 1 is a schematic view of a network in an RLC entity.

[0059] 图2是WSN SUFI的结构示意图。 [0059] FIG. 2 is a schematic diagram of the WSN SUFI.

[0060] 图3是根据本发明的网络流量控制的方法流程图。 [0060] FIG. 3 is a flowchart of a method according to the present invention, the network traffic control.

[0061] 图4是根据本发明一较佳实施例的网络流量控制的方法流程图。 [0061] FIG. 4 is a flowchart of a method of controlling network traffic to a preferred embodiment of the present invention.

[0062] 图5是根据本发明另一较佳实施例的网络流量控制的方法流程图。 [0062] FIG. 5 is a flowchart illustrating another method of controlling network traffic according to the preferred embodiment of the present invention.

具体实施方式 Detailed ways

[0063] 为了使本发明的目的、技术方案和优点更清楚,下面结合附图和具体实施方式对本发明作进一步描述。 [0063] To make the objectives, technical solutions, and advantages of the present invention more clearly, the accompanying drawings and the following specific embodiments of the present invention will be further described.

[0064] 根据本发明的网络流量控制的方法是通过控制RNC侧和UE侧无线链路控制(Radio Link Control, RLC)实体的发送和接收窗口尺寸来实现的。 [0064] The method of controlling network traffic according to the present invention is achieved by controlling the UE side and the RNC side radio link control (Radio Link Control, RLC) entity transmitting and receiving window size is achieved.

[0065] 网络包括RNC和UE,而RNC和UE均包括RLC实体,RLC实体位于RLC子层中,用于接收和发送RLC协议数据单元(RLC PDU)。 [0065] The network comprises an RNC and the UE, the RNC and the UE includes a RLC entity, the RLC entity located in the RLC sublayer, the RLC protocol for receiving and transmitting data units (RLC PDU). 本发明的方法通过控制RLC实体的接收和发送窗口来控制网络流量。 The method of the present invention to control network traffic by controlling the reception and transmission windows RLC entity. 图1是网络中RLC实体的示意图,从图1中可以看出,RNC侧和UE 侧的RLC包括发送端和接收端。 1 is a schematic RLC entity of the network, can be seen from Figure 1, the RNC RLC side and the UE side comprises a transmitting end and a receiving end. RNC侧RLC实体的发送端和UE侧RLC实体的接收端对应, UE侧RLC实体的接收端接收来自RNC侧RLC实体的发送端的RLC PDU ;UE侧RLC实体的发送端和RNC侧RLC实体的接收端对应,RNC侧RLC实体的接收端接收来自UE侧RLC实体的发送端的RLC PDU。 Receiving end sends an end RNC side RLC entity and a UE side RLC entity corresponding to the receiving terminal UE side RLC entity receives the transmission side from the RNC side RLC entity RLC PDUs; receiving the transmitted terminal UE side RLC entity and the RNC side RLC entity end corresponding to the receiving side RLC entity of the RNC side transmitting end from the receiving side RLC entity UE RLC PDU. 所以,UE侧RLC实体和RNC侧RLC实体既可以是发送方,也可以是接收方。 Therefore, the UE side and the RNC side RLC entity RLC entity may be a sender, a recipient may be.

[0066] RNC侦U RLC实体利用窗口尺寸超域(Window Size Super Field, WindowSize SUFI) 指示UE侧RLC实体改变窗口尺寸。 [0066] RNC instructs the UE detect the U-side RLC entity RLC entity to change the window size using a window size super field (Window Size Super Field, WindowSize SUFI). 图2示出了Window Size SUFI的结构,从图中可以看出,Window Size SUFI包括一类型标识(WINDOW)和一窗口尺寸数(Window Size Number, WSN)。 Figure 2 shows the structure of Window Size SUFI can be seen from the figure, Window Size SUFI comprises a type identifier (the WINDOW) and a number of windows (Window Size Number, WSN) size.

[0067] 图3是根据本发明的网络流量控制的方法流程图,从图3中可以看出,该方法包括如下步骤: [0067] FIG. 3 is a flowchart of a method of controlling network traffic according to the present invention can be seen from Figure 3, the method comprising the steps of:

[0068] 步骤301 :判断拥塞发生时是下行方向受限还是上行方向受限,如果下行方向受限,则转到步骤302 ;如果上行方向受限,则转到步骤307。 [0068] Step 301: determining when congestion is limited downlink and uplink directions is limited, if the downward direction is limited, go to step 302; if the uplink direction is limited, then go to step 307.

[0069] 如果拥塞发生时检测到下行链路的载波功率大于设定的拥塞门限,则判断为下行方向受限;如果拥塞发生时检测到上行载波功率大于设定的拥塞门限,则判断为上行方向受限。 [0069] If the congestion is detected the downlink carrier power is greater than the set congestion threshold, it is determined that the downlink direction is limited; detected uplink congestion carrier power is greater than the set threshold, it is determined if an uplink congestion direction is limited.

[0070] 步骤302 :减小RNC RLC实体发送端窗口尺寸。 [0070] Step 302: RNC RLC entity of the transmitting side to reduce the window size.

[0071] 步骤303 :判断无线链路检测所得的下行载波功率是否小于设定的拥塞解除门限,如果是,则说明拥塞解除,转到步骤304;否则,说明拥塞未解除,返回步骤302。 [0071] Step 303: determining the radio link detection resultant downlink carrier power is smaller than the congestion threshold set to release, if so, then the congestion is removed, go to step 304; otherwise, indicating the congestion is not canceled, processing returns to step 302. [0072] 步骤304 :增大RNC RLC实体发送端窗口尺寸。 [0072] Step 304: the window size is increased RNC RLC entity transmitting end.

[0073] 步骤305 :判断RNC RLC实体发送端窗口尺寸是否大于或等于下行RLC窗口阈值, 如果是,则转到步骤306 ;否则,返回步骤304。 [0073] Step 305: the RNC RLC entity of the transmitting side determines the window size is greater than or equal to a downlink RLC window threshold value, if yes, go to step 306; otherwise, returns to step 304.

[0074] 步骤306 :将RNC RLC实体发送端窗口尺寸设置为无拥塞时网络配置的RNC RLC实体发送端窗口尺寸。 [0074] Step 306: the RNC RLC entity of the transmitting side window size to RNC RLC entity configured without network congestion window size transmission side.

[0075] 步骤307 :减小RNC RLC实体接收端窗口尺寸。 [0075] Step 307: RNC RLC entity reduced side reception window size.

[0076] 步骤308 :RNC RLC实体通知UE RLC实体改变其发送端窗口尺寸。 [0076] Step 308: RNC RLC entity notifies the UE RLC entity transmitting end to change its window size.

[0077] 步骤309 :判断无线链路检测所得的上行载波功率是否小于设定的拥塞解除门 [0077] Step 309: determining the radio link detection resultant uplink carrier power is less than the set congestion door release

限,如果是,则说明拥塞解除,转到步骤310 ;否则,说明拥塞未解除,返回步骤307。 Limit, if yes, then the congestion is removed, go to step 310; otherwise, indicating the congestion is not canceled, processing returns to step 307.

[0078] 步骤310 :增大RNC RLC实体接收端窗口尺寸。 [0078] Step 310: RNC RLC entity increases the size of the receiving side window.

[0079] 步骤311 :RNC RLC实体通知UE RLC实体改变其发送端窗口尺寸为RNC RLC实体接收端窗口尺寸。 [0079] Step 311: RNC RLC entity notifies the UE RLC entity transmitting end to change its window size RNC RLC entity of the receiving side window size.

[0080] 步骤312 :判断RNC RLC实体接收端窗口尺寸是否大于或等于上行RLC窗口阈值, 如果是,则转到步骤313 ;否则,返回步骤310。 [0080] Step 312: the RNC RLC entity determines the size of the receive window is greater than or equal to the uplink RLC window threshold, and if yes, go to step 313; otherwise, returns to step 310.

[0081] 步骤313 :将RNC RLC实体接收端窗口尺寸设置为无拥塞时网络配置的RNC RLC实体接收端窗口尺寸。 [0081] Step 313: the RNC RLC entity of the receiving side window size to RNC RLC entity configured without network congestion window size receiver.

[0082] 步骤314 :RNC RLC实体通知UE RLC实体改变其发送端窗口尺寸为RNC RLC实体接收端窗口尺寸。 [0082] Step 314: RNC RLC entity notifies the UE RLC entity transmitting end to change its window size RNC RLC entity of the receiving side window size.

[0083] 下面通过两个具体实施例说明本发明的方法。 [0083] The following two examples illustrate specific embodiments of the present invention is achieved by the method. [0084] 具体实施例1 : [0084] DETAILED DESCRIPTION Example 1:

[0085] 图4是根据本发明一个较佳实施例网络流量控制的方法流程图,从图4可以看出,该方法包括以下步骤:[0086] 步骤401 :判断拥塞发生时是下行方向受限还是上行方向受限,如果下行方向受限,则转到步骤402 ;如果上行方向受限,则转到步骤409。 [0085] FIG. 4 is a flowchart of a method of controlling network traffic according to a preferred embodiment of the present invention, it can be seen from Figure 4, the method comprising the steps of: [0086] Step 401: it is determined that congestion occurs in the downlink direction is restricted restricted or upstream direction, if the direction is limited downlink, go to step 402; if the uplink direction is limited, then go to step 409.

[0087] 步骤402 :由公式1确定在空口质量理想的情况下(无误码)保证下行PS业务速率的下行流控RLC窗口尺寸: [0087] Step 402: 1 is determined by the formula in the case of over the air interface quality (error-free) to ensure that the downlink traffic rate PS control RLC window size downstream:

[0088] 下行流控RLC窗口尺寸=下行PS业务速率(kbps) X空口时延(s) / [0089] (TB长度-MAC头长度-RLC头长度)(bit) (1) [0088] The downstream control downlink RLC window size = PS traffic rate (kbps) X air interface delay (s) / [0089] (TB header length -RLC -MAC length header length) (bit) (1)

[0090] 其中,下行PS业务速率是网络侧根据当前下行网络负载水平确定的PS业务速率; 空口时延为发送和接收响应之间的时间间隔,一般可以设置为RNC侧配置的轮询重传定时器(Timer_Poll)的值或周期性轮询重传定时器(Timer_P0ll_Peri0diC)的值;TB为传输块(Transport Block, TB) , TB的长度是336比特,TB长度减去MAC头长度和RLC头长度是TB的有效长度,约为320比特。 [0090] The downlink traffic rate PS network side according to the current network load level determined downlink traffic rate PS; air interface delay as the time between transmission and reception of the response interval, the polling may be disposed generally configured to retransmit the RNC side the timer value (the Timer_Poll) value or periodic polling retransmission timer (Timer_P0ll_Peri0diC) a; transport block TB (transport block, TB), the length is 336 bits TB, TB length minus the length of a MAC header and an RLC header TB is a length of the effective length of about 320 bits.

[OO91] 步骤403 :RNC侧RLC实体将发送端窗口尺寸设置为Congestion_Downlink_Tx_ Window—Size。 [OO91] Step 403: RNC side transmitting side RLC entity will set the window size Congestion_Downlink_Tx_ Window-Size. ,其取值范围为从0到下行流控RLC窗口尺寸之间的整数,包括0和下行流控RLC窗口尺寸。 , Which is in the range of from 0 to an integer between downlink RLC flow control window size, including 0 and downstream control RLC window size.

[0092] 步骤404:判断无线链路检测所得的下行载波功率是否小于设定的拥塞解除门 [0092] Step 404: determining the radio link detection resultant downlink carrier power is smaller than the releasing threshold set congestion

限,如果是,则说明拥塞解除,转到步骤405 ;否则,说明拥塞未解除,返回步骤402。 Limit, if it is, then the congestion is removed, go to step 405; otherwise, the description does not relieve congestion, returns to step 402.

[0093] 步骤405 :由公式2计算下行RLC窗口尺寸阈值: [0093] Step 405: Equation 2 is calculated by the downlink RLC window size threshold:

[0094] 下行窗口阈值=MIN(KX下行流控RLC窗口尺寸, [0094] downlink window threshold value = MIN (KX downstream control RLC window size,

[0095] Configure_Tx_Window_Size) (2) [0095] Configure_Tx_Window_Size) (2)

[0096] 其中,K为系数, 一般为1.5,下行流控RLC窗口尺寸由公式1计算得出, [0096] where, K is a coefficient, typically 1.5, downstream control RLC window size is calculated by the formula 1 obtained,

Configure_Tx_Window_Size为无拥塞时网络配置的下行RLC窗口尺寸,即网络配置的RNC Configure_Tx_Window_Size downlink RLC window size is configured without network congestion, i.e., the network configuration RNC

侧RLC实体发送端窗口大小。 Side RLC entity of the transmitting side window size.

[0097] 步骤406 :由公式3确定RNC侧RLC实体发送端窗口尺寸Congestion_Downlink_ Tx_Window_Sizet : [0097] Step 406: determined by Equation 3 RNC side RLC entity of the transmitting side window size Congestion_Downlink_ Tx_Window_Sizet:

[0098] Congestion_Downlink_Tx_Window_Sizet [0098] Congestion_Downlink_Tx_Window_Sizet

[0099] = Congestion_Downlinkk_Tx_Window_Size0+TxW(N,t) (3) [0099] = Congestion_Downlinkk_Tx_Window_Size0 + TxW (N, t) (3)

[0100] 其中,N为重传率,t为时间,TxW为RLC在当前时刻的重传率。 [0100] where, N is a retransmission rate, t is time, TxW RLC retransmission rate at the current time. 重传率越小,表示网络从拥塞中恢复的水平越好,TxW越大,那么在该时刻的Congestion_Downlink_Tx_ Window—Sizet越大;重传率越大,表示网络从拥塞中恢复的水平越差,TxW越小,那么在该时亥lj的Congestion_Downlink_Tx_Window_Sizet越小。 The smaller the retransmission rate, the better the network of Recovery from Congestion level, TXW larger, then the greater the time Congestion_Downlink_Tx_ Window-Sizet; the higher retransmission rate, the network indicates the level of Recovery from Congestion worse, TxW smaller, then the smaller the Hai lj when the Congestion_Downlink_Tx_Window_Sizet.

[0101] 步骤407 :判断Congestion_Downlink_Tx_Window_Sizet是否大于或等于下行窗口阈值,如果是,则认为网络从拥塞状态中恢复,转到步骤408 ;否则返回步骤406。 [0101] Step 407: determining whether the downlink Congestion_Downlink_Tx_Window_Sizet greater than or equal threshold window, if so, then considers the network to recover from congestion state, go to Step 408; otherwise, returns to step 406. [0102] 步骤408 :将RNC侧RLC实体发送端窗口尺寸设置为无拥塞时网络配置的下行RLC 窗口尺寸ConfigureJx—Window—Size,然后结束。 [0102] Step 408: the RNC side transmitting side RLC entity downlink RLC window size to the window size when the congestion-free network configuration ConfigureJx-Window-Size, and then ends.

[0103] 步骤409 :由公式4确定在空口质量理想的情况下(无误码)保证上行PS业务速率的上行流控RLC窗口尺寸: [0103] Step 409: determined by Equation 4 in the case of over the air interface quality (error-free) to ensure that the upstream flow control window size RLC uplink traffic rate PS:

[0104] 上行流控RLC窗口尺寸=上行PS业务速率(kbps) X空口时延(s) / [0104] Upstream control uplink RLC window size = PS traffic rate (kbps) X air interface delay (s) /

[0105] (TB长度-MAC头长度-RLC头长度)(bit) (4) [0105] (TB header length -RLC -MAC length header length) (bit) (4)

[0106] 其中,上行PS业务速率是网络侧根据当前上行网络负载水平确定的PS业务速率; [0106] wherein, the uplink traffic rate PS is determined according to the network-side network load level of the current uplink rate of the PS service;

10空口时延为发送和接收响应之间的时间间隔, 一般可以设置为RNC侧配置的Timer_Poll的值或Timer_Poll_Periodic的值,TB为传输块(Transport Block, TB) ,TB的长度是336比特,TB长度减去MAC头长度和RLC头长度是TB的有效长度,约为320比特。 10 is the air interface delay time between transmission and reception response interval may generally be configured to set the value of the Timer_Poll RNC-side or the Timer_Poll_Periodic, a transmission block TB (Transport Block, TB), the length is 336 bits TB, TB length minus the length of a MAC header and an RLC header length TB is the effective length of about 320 bits. [0107] 步骤410 :RNC侧RLC实体将接收端窗口尺寸设置为Congestion_Uplink_Rx_ Window—Size。 [0107] Step 410: RNC side RLC entity of the receiving side window size Congestion_Uplink_Rx_ Window-Size. ,其取值范围为从0到上行流控RLC窗口尺寸之间的整数,包括0和上行流控RLC窗口尺寸。 , Which is in the range from 0 up to an integer of the flow control between the RLC window size, including 0 and upstream control RLC window size.

[0108] 步骤411 :RNC侧RLC实体发送Window Size SUFI至UE侧RLC实体,Window Size SUFI中的窗口尺寸数是Congestion—Uplink—Rx—Window—Size。 [0108] Step 411: RNC side RLC entity transmitting Window Size SUFI side RLC entity to the UE, the number of window size Window Size SUFI is Congestion-Uplink-Rx-Window-Size. , UE侧RLC的发送端窗口改变为Congestion—Up 1 ink_Rx_Window_Size。 , UE transmitting side RLC side window is changed to Congestion-Up 1 ink_Rx_Window_Size. .

[0109] 步骤412 :判断无线链路检测所得的上行载波功率是否小于设定的拥塞解除门 [0109] Step 412: determining the radio link detection resultant uplink carrier power is less than the set congestion door release

限,如果是,则说明拥塞解除,转到步骤413 ;否则,说明拥塞未解除,返回步骤409。 Limit, if it is, then the congestion is removed, go to step 413; otherwise, the description does not relieve congestion, returns to step 409.

[0110] 步骤413 :由公式5计算上行RLC窗口尺寸阈值: [0110] Step 413: Equation 5 is calculated by the uplink RLC window size threshold:

[0111] 上行窗口阈值=MIN(KX上行流控RLC窗口尺寸, [0111] Uplink window threshold value = MIN (KX upstream control RLC window size,

[0112] Configure_Rx_Window_Size) (5) [0112] Configure_Rx_Window_Size) (5)

[0113] 其中,K为系数, 一般为1.5,上行流控RLC窗口尺寸由公式4计算得出, [0113] where, K is a coefficient, typically 1.5, the upstream control RLC window size calculated by the formula 4,

Configure_Rx_Window_Size为无拥塞时网络配置的上行RLC窗口尺寸,即网络配置的RNC Configure_Rx_Window_Size uplink RLC window size is configured without network congestion, i.e., the network configuration RNC

侧RLC实体接收端窗口大小。 Side RLC entity receive window size.

[0114] 步骤414 :由公式6计算RNC侧RLC实体接收端窗口尺寸Congestion_Uplink_Rx_ Window_Sizet : [0114] Step 414: RNC side RLC entity is given by Equation 6 receive window size Congestion_Uplink_Rx_ Window_Sizet:

[0115] Congestion_Uplink_Rx_Window_Sizet [0115] Congestion_Uplink_Rx_Window_Sizet

[0116] = Congestion_Uplink_Rx_Window_Size0+RxW(K, t) (6) [0116] = Congestion_Uplink_Rx_Window_Size0 + RxW (K, t) (6)

[0117] 其中,K为误块率,t为时间,RxW为当前时刻的上行误块率。 [0117] where, K is the block error rate, t is time, RxW uplink block error rate at the current time. 误块率越小,表示网络从拥塞中恢复的水平越好,RxW越大,那么在该时刻的Congestion_Uplink_Rx_Window_ Sizet越大;误块率越大,表示网络从拥塞中恢复的水平越差,RxW越小,那么在该时刻的Congest ion—Up1ink_Rx_Window_Si zet越小。 Block error rate is smaller, the better the network of Recovery from Congestion level, RxW, the larger, then the greater the moment in Congestion_Uplink_Rx_Window_ Sizet; block error rate is larger, the network indicates the level of Recovery from Congestion worse, the RxW, small, smaller in Congest ion-Up1ink_Rx_Window_Si zet that time.

[0118] 步骤415 :RNC侧RLC实体发送Window Size SUFI至UE侧RLC实体,Window Size SUFI中的窗口尺寸数是Congestion—Uplink—Rx—Window—Sizet, UE侧RLC的发送端窗口改变为Congestion_Uplink_Rx_Window_Sizet。 [0118] Step 415: RNC side RLC entity transmitting Window Size SUFI to the UE side RLC entity, the window number size Window Size SUFI is Congestion-Uplink-Rx-Window-Sizet, UE side RLC transmission side window is changed to Congestion_Uplink_Rx_Window_Sizet.

[0119] 步骤416 :判断Congestion_Uplink_Rx_Window_Sizet是否大于或等于上行窗口阈值,如果是,则认为从拥塞状态中恢复,转到步骤417 ;否则返回步骤414。 [0119] Step 416: determining whether the uplink is equal to or greater than Congestion_Uplink_Rx_Window_Sizet window threshold value, and if so, it is considered to recover from the congestion state, go to step 417; otherwise, returns to step 414. [0120] 步骤417 :将RNC侧RLC接收端窗口尺寸设置为无拥塞时网络配置的上行RLC窗n尺寸Conf igure_Rx_Window_Size。 [0120] Step 417: the RNC RLC receiving side terminal uplink RLC window size to the window size n Conf igure_Rx_Window_Size configured without network congestion.

[0121] 步骤418、RNC侧RLC实体发送Window Size SUFI至UE,Window SizeSUFI中的窗口尺寸数是Conf igure_Rx_Window_Size,将UE侧RLC发送端窗口尺寸设置为Conf igure_ Rx—Window—Size,然后结束。 [0121] Step 418, RNC-side RLC entity transmitting Window Size SUFI to the UE, the number of window size is Window SizeSUFI Conf igure_Rx_Window_Size, the UE side, the transmitting side RLC window size is set to Conf igure_ Rx-Window-Size, and then ends.

[0122] 从图4的步骤可以看出,在下行方向,RNC侧通过减小RLC实体发送端窗口尺寸有效地控制下行数据流量,起到降低空口负载的作用;在上行方向,UE侧RLC实体在收到RNC 侧RLC实体发来的Window Size SUFI之后,将UE侧RLC的发送端窗口设置为RNC侧配置的较小的接收端窗口尺寸,有效地减少上行数据流量,从而降低UE的发射功率,减小干扰,提高容量。 [0122] As can be seen from step 4 in the downstream direction, the RNC side to effectively control the downlink data traffic by reducing the window size RLC entity of the transmitting side, serve to reduce the role of an air interface load; in the uplink direction, the UE side RLC entity after receiving side RLC entity RNC sent window size SUFI, the smaller the size of the receive window of the RLC transmitting side UE side window is set to the RNC side configuration, effectively reducing the uplink data traffic, thereby reducing the transmit power of the UE , reduce interference, increase capacity.

[0123] 当拥塞解除时,在下行方向,根据重传率确定RNC侧RLC实体发送端窗口尺寸;在上行方向,利用误块率确定UE侧RLC实体发送端的窗口尺寸。 [0123] When the congestion is removed, in the downstream direction, according to the retransmission rate determination RNC side RLC entity of the transmitting window size end; In the uplink direction, the block error rate is determined using a window size at the UE side RLC entity of the transmitting side. 这样,就能够根据网络拥塞恢复水平来有效地控制数据速率,增大或减小数据流量,使网络逐渐从拥塞状态中恢复。 Thus, it is possible to effectively control the network congestion level of recovery in accordance with the data rate, increasing or decreasing the data flow to the network to recover from the congestion state gradually. [0124] 具体实施例2: [0124] Specific Example 2:

[0125] 图5是根据本发明另一较佳实施例的网络流量控制的方法流程图,从图5中可以看出,该方法包括如下步骤: [0125] FIG. 5 is a flowchart illustrating another preferred embodiment of the method of controlling network traffic according to an embodiment of the present invention, it can be seen from Figure 5, the method comprising the steps of:

[0126] 步骤501 :判断拥塞发生时是下行方向受限还是上行方向受限,如果下行方向受限,则转到步骤502 ;如果上行方向受限,则转到步骤509。 [0126] Step 501: determining when congestion is limited downlink and uplink directions is limited, if the downward direction is limited, go to step 502; if the uplink direction is limited, then go to step 509.

[0127] 步骤502 :由公式7根据拥塞时与无拥塞时下行业务传输速率确定发送端流控比例WD0WN : [0127] Step 502: the transmitting end 7 flow control ratio is determined by the equation WD0WN downlink traffic congestion time and transfer rate according to the congestion-free:

[0128] WD。 [0128] WD. ffl =拥塞时下行PS业务速率(kbps)/ ffl = PS downlink congestion traffic rate (kbps) /

[0129] 无拥塞时下行PS业务速率(kbps) (7) [0129] PS downlink traffic rate (kbps) when there is no congestion (7)

[0130] 拥塞时下行PS业务速率是网络侧根据当前下行网络负载水平确定的下行PS业务 [0130] PS downlink traffic rate when congestion is determined based on the current network side downlink network traffic load level of the downlink PS

速率;无拥塞时下行PS业务速率是网络侧在无拥塞状况下确定的下行PS业务速率,该值存 Rate; congestion-free downlink when downlink traffic rate PS PS network traffic rate determined in the absence of congestion, the stored value

储在网络侧。 Stored in the network side.

[0131] 步骤503 :RNC侧RLC实体将发送端窗口尺寸设置为Congestion_Downlink_Tx_ Window_Size。 [0131] Step 503: RNC side transmitting side RLC entity will set the window size Congestion_Downlink_Tx_ Window_Size. :

[0132] Congestion_DownlinK_Tx_Window_Size。 [0132] Congestion_DownlinK_Tx_Window_Size. = =

[0133] Configure_Tx_Window_SizeXWDQWN (8) [0133] Configure_Tx_Window_SizeXWDQWN (8)

[0134] Configure_Tx_Window_Size为无拥塞时网络配置的下行RLC窗口尺寸。 [0134] Configure_Tx_Window_Size is configured without network congestion downlink RLC window size.

[0135] 步骤504 :判断无线链路检测所得的下行载波功率是否小于设定的拥塞解除门 [0135] Step 504: determining the radio link detection resultant downlink carrier power is smaller than the releasing threshold set congestion

限,如果是,则说明拥塞解除,转到步骤505 ;否则,说明拥塞未解除,返回步骤502。 Limit, if it is, then the congestion is removed, go to step 505; otherwise, the description does not relieve congestion, returns to step 502.

[0136] 步骤505 :设置下行RLC窗口尺寸阈值为Configure_Tx_Window_Size。 [0136] Step 505: Set a downlink RLC window size threshold Configure_Tx_Window_Size.

[0137] Configure_Tx_Window_Size为无拥塞时网络配置的下行RLC窗口尺寸 [0137] Configure_Tx_Window_Size network configuration is no congestion window size RLC downlink

[0138] 步骤506 :由公式9确定RNC侧RLC实体发送端窗口尺寸Congestion_Downlink_ [0138] Step 506: determining, by Equation 9 RNC RLC entity of the transmitting side terminal window size Congestion_Downlink_

Tx_Window_Sizet : Tx_Window_Sizet:

[0139] Congestion_Downlink_Tx_Window_Sizet [0139] Congestion_Downlink_Tx_Window_Sizet

[0140] = Congestion_Downlink_Tx_Window_Size0+W(t) (9) [0140] = Congestion_Downlink_Tx_Window_Size0 + W (t) (9)

[0141 ] 其中,t为时间,W (t)为时间的函数。 [0141] wherein, t is time, W (t) as a function of time. 从公式7可以看出,RNC侧RLC实体发送端 As can be seen from Equation 7, RNC side transmitting side RLC entity

窗口尺寸随时间递增。 Window size increases with time.

[0142] 步骤507 :判断Congestion_Downlink_Tx_Window_Sizet是否大于或等于下行窗口阈值,如果是,则认为网络从拥塞状态中恢复,转到步骤508 ;否则返回步骤506。 [0142] Step 507: determining whether the downlink Congestion_Downlink_Tx_Window_Sizet greater than or equal threshold window, if so, then considers the network to recover from the congestion state, go to step 508; otherwise, returns to step 506. [0143] 步骤508 :将RNC侧RLC实体发送端窗口尺寸设置为无拥塞时网络配置的下行RLC 窗口尺寸ConfigureJx—Window—Size,然后结束。 [0143] Step 508: the RNC side transmitting side RLC entity downlink RLC window size to the window size when the congestion-free network configuration ConfigureJx-Window-Size, and then ends.

[0144] 步骤509 :由公式IO根据拥塞时与无拥塞时上行业务传输速率确定接收端流控比例WUP : [0144] Step 509: The IO is determined by the equation uplink traffic congestion when the congestion transmission rate without receiving end flow control ratio WUP:

[0145] WUP =拥塞时上行PS业务速率(kbps)/ [0145] WUP = PS uplink congestion traffic rate (kbps) /

[0146] 无拥塞时上行PS业务速率(kbps) (10) [0146] PS uplink traffic rate (kbps) when there is no congestion (10)

12[0147] 拥塞时上行PS业务速率是网络侧根据当前上行网络负载水平确定的上行PS业务速率;无拥塞时上行PS业务速率是网络侧在无拥塞状况下确定的上行PS业务速率,该值存储在网络侧。 12 [0147] Uplink PS traffic rate when congestion is uplink PS service rate of the network side is determined based on the current uplink network load level; uplink PS traffic rate when no congestion is uplink PS service rate of the network side determines in the absence of congestion, that value stored in the network side.

[0148] 步骤510 :RNC侧RLC实体将接收端窗口尺寸设置为Congestion_Uplink_Rx_ Window_Size。 [0148] Step 510: RNC side RLC entity of the receiving side window size Congestion_Uplink_Rx_ Window_Size. :

[0149] Congestion_Uplink_Rx_Window_Size。 [0149] Congestion_Uplink_Rx_Window_Size. = =

[0150] Configure_Rx_Window_SizeXWUP (11) [0150] Configure_Rx_Window_SizeXWUP (11)

[0151] Configure_Rx_Window_Size为无拥塞时网络配置的上行RLC窗口尺寸。 [0151] Configure_Rx_Window_Size is configured without network congestion uplink RLC window size. [0152] 步骤511 :RNC侧RLC实体发送Window Size SUFI至UE侧RLC实体,Window Size SUFI中的窗口尺寸数是Congestion_Uplink_Rx_Window_Size。 [0152] Step 511: RNC side RLC entity transmitting Window Size SUFI side RLC entity to the UE, the number of window size Window Size SUFI is Congestion_Uplink_Rx_Window_Size. , UE侧RLC的发送端窗口改变为Congestion—Up 1 ink_Rx_Window_Size。 , UE transmitting side RLC side window is changed to Congestion-Up 1 ink_Rx_Window_Size. .

[0153] 步骤512 :判断无线链路检测所得的上行载波功率是否小于设定的拥塞解除门 [0153] Step 512: determining the radio link detection resultant uplink carrier power is less than the set congestion door release

限,如果是,则说明拥塞解除,转到步骤513 ;否则,说明拥塞未解除,返回步骤509。 Limit, if it is, then the congestion is removed, go to step 513; otherwise, the description does not relieve congestion, returns to step 509.

[0154] 步骤513 :设置上行RLC窗口尺寸阈值为Configure_Rx_Window_Size。 [0154] Step 513: Set an uplink RLC window size threshold Configure_Rx_Window_Size.

[0155] Configure_Rx_Window_Size无拥塞时网络配置的上行RLC窗口尺寸。 [0155] When no network congestion Configure_Rx_Window_Size configured uplink RLC window size.

[0156] 步骤514 :由公式12计算RNC侧RLC实体接收端窗口尺寸Congestion_Uplink_ [0156] Step 514: RNC side RLC entity window size is given by Equation 12 Congestion_Uplink_ receiving end

Rx_Window_Sizet : Rx_Window_Sizet:

[0157] Congestion_Uplink_Rx_Window_Sizet [0157] Congestion_Uplink_Rx_Window_Sizet

[0158] = Congestion_Uplink_Rx_Window_Size。 [0158] = Congestion_Uplink_Rx_Window_Size. +W(t) (12) + W (t) (12)

[0159] 其中,t为时间,W(t)为时间的函数。 [0159] wherein, t is time, W (t) as a function of time. 从公式12可以看出,RNC侧RLC实体接收端 As can be seen from Equation 12, RNC-side RLC entity receiving terminal

窗口尺寸随时间递增。 Window size increases with time.

[0160] 步骤515 :RNC侧RLC实体发送Window Size SUFI至UE侧RLC实体,Window Size SUFI中的窗口尺寸数是Congestion—Uplink—Rx—Window—Sizet, UE侧RLC的发送端窗口改变为Congestion_Uplink_Rx_Window_Sizet。 [0160] Step 515: RNC side RLC entity transmitting Window Size SUFI to the UE side RLC entity, the window number size Window Size SUFI is Congestion-Uplink-Rx-Window-Sizet, UE side RLC transmission side window is changed to Congestion_Uplink_Rx_Window_Sizet.

[0161] 步骤516 :判断Congestion_Uplink_Rx_Window_Sizet是否大于或等于上行窗口阈值,如果是,则认为从拥塞状态中恢复,转到步骤517 ;否则返回步骤514。 [0161] Step 516: determining whether the uplink is equal to or greater than Congestion_Uplink_Rx_Window_Sizet window threshold value, and if so, it is considered to recover from the congestion state, go to step 517; otherwise, returns to step 514. [0162] 步骤517 :将RNC侧RLC接收端窗口尺寸设置为无拥塞时网络配置的上行RLC窗n尺寸Conf igure_Rx_Window_Size。 [0162] Step 517: the RNC RLC receiving side terminal uplink RLC window size to the window size n Conf igure_Rx_Window_Size configured without network congestion.

[0163] 步骤518 :RNC侧RLC实体发送Window Size SUFI至UE, Window SizeSUFI中的窗口尺寸数是Conf igure_Rx_Window_Size,将UE侧RLC发送端窗口尺寸设置为Conf igure_ Rx—Window—Size,然后结束。 [0163] Step 518: RNC side RLC entity transmitting Window Size SUFI to the UE, the number of window size is Window SizeSUFI Conf igure_Rx_Window_Size, the UE side, the transmitting side RLC window size is set to Conf igure_ Rx-Window-Size, and then ends.

[0164] 从图5的步骤可以看出,在下行方向,RNC侧也是通过减小RLC实体发送端窗口尺寸有效地控制下行数据流量;在上行方向,UE侧RLC实体在收到RNC侧RLC实体发来的Window Size SUFI之后,将UE侧RLC的发送端窗口设置为RNC侧配置的较小的接收端窗口尺寸。 [0164] As can be seen from the steps of FIG. 5, in the downlink direction, RNC side is effectively controlled by reducing the flow of downlink data transmitting side RLC entity window size; In the uplink direction, the UE side RLC entity receives RLC entity RNC side after sent to the window size SUFI, the RLC transmitting side UE side window provided smaller size of the receive window is configured RNC side. 与图3的实施例所不同的是,本实施例中采用的窗口尺寸的计算公式不同。 The embodiment of FIG. 3 except that different formulas window size employed in the present embodiment. [0165] 拥塞解除后的恢复期内,这种流控方式在确定窗口尺寸时不考虑下行的重传率或上行的误块率,仅通过时间递增来恢复窗口尺寸,虽然考虑的因素较少,但是实施起来较为简便。 [0165] After the recovery period of the congestion is removed, in this way flow control window size is not considered when determining the downlink retransmission rate or uplink block error rate, only to restore the window size by increasing time, although less factor to consider , but it is simple to implement.

[0166] 在具体的实施过程中可对根据本发明的方法进行适当的改进,以适应具体情况的具体需要。 [0166] modifications may be appropriately carried out according to the method of the present invention in the specific embodiment of the process, in order to accommodate the specific needs of a particular situation. 因此可以理解,根据本发明的具体实施方式只是起示范作用,并不用以限制本发明的保护范围。 Thus it is appreciated that, according to embodiments of the present invention only serve as a model, not intended to limit the scope of the present invention.

Claims (29)

  1. 一种网络流量控制的方法,其特征在于,该方法包括以下步骤:A、无线网络控制器RNC判断网络是下行拥塞还是上行拥塞,如果下行方向拥塞,转到步骤B,如果上行方向拥塞,则转到步骤C;B、减小RNC侧无线链路控制RLC实体发送端窗口尺寸,然后结束;C、减小用户设备UE侧RLC实体发送端窗口尺寸,然后结束。 A method of network traffic control, characterized in that the method comprises the steps of: A, radio network controller RNC determines network congestion is downlink or uplink congestion, congestion direction if the downlink, go to step B, and if the uplink is congested, then go to step C; B, reducing the RNC side the RLC entity transmitting side window size, and then ends; C, to reduce the side RLC entity the user equipment UE ends transmission window size, and then ends.
  2. 2. 根据权利要求1所述的网络流量控制的方法,其特征在于,步骤C之前进一步包括: 减小RNC侧RLC实体接收端窗口尺寸,步骤C所述减小UE侧RLC实体发送端窗口尺寸是根据接收到的RNC侧RLC实体发来的包含一窗口尺寸的窗口尺寸超域,将UE侧RLC实体发送端窗口尺寸改变为窗口尺寸超域中的窗口尺寸实现,所述窗口尺寸超域中包含的窗口尺寸为RNC侧RLC实体接收端窗口尺寸。 2. The method of controlling network traffic according to claim, wherein, prior to step C further comprising: reducing the RNC side RLC entity receiving side window size, step C, the reduced transmitting side RLC entity at the UE side window size is based on the received RLC entity sent from the RNC side window size super field contains a window size, changing the transmitting side RLC entity at the UE side window size of a window size of a window size super field realization, the window size super field window size window size comprises an RNC side receiving side RLC entity.
  3. 3. 根据权利要求1所述的网络流量控制的方法,其特征在于,步骤B所述减小RNC侧RLC实体发送端窗口尺寸的方法为:根据下行分组交换业务速率确定下行流控RLC窗口尺寸;RNC侧RLC实体将发送端窗口尺寸设置为小于下行流控RLC窗口尺寸。 3. The method of controlling network traffic according to claim, wherein said step B, a method of reducing the RNC side transmitting side RLC entity window size to: determine the downlink flow control window size according to the downlink RLC packet-switched traffic rate ; RLC entity of the RNC-side transmission window size is set to be smaller than the downstream end of the RLC window size control.
  4. 4. 根据权利要求1所述的网络流量控制的方法,其特征在于,步骤C所述减小UE侧RLC 实体发送端窗口尺寸的方法为:根据上行分组交换业务速率确定上行流控RLC窗口尺寸;UE侧RLC实体将发送端窗口尺寸设置为小于上行流控RLC窗口尺寸。 4. The method of controlling network traffic according to claim, wherein the step of C method of reducing the UE side, the transmitting side RLC entity window size of: determining an uplink RLC flow control window size according to the uplink packet switched traffic rate ; the UE side RLC entity to the transmitting side window size is set smaller than the upstream flow control RLC window size.
  5. 5. 根据权利要求3所述的网络流量控制的方法,其特征在于,步骤B所述下行流控RLC 窗口尺寸为:空口时延乘以拥塞时的下行分组交换业务速率的积除以一个传输块的有效比特数所得的商。 5. The method of claim 3 according to the network traffic control as claimed in claim wherein said step of B downlink RLC window size for the flow control: the air interface delay multiplied downlink packet switched traffic rate when congestion of a transmission by dividing the product the resulting quotient valid bit number of blocks.
  6. 6. 根据权利要求4所述的网络流量控制的方法,其特征在于,步骤C所述上行流控RLC 窗口尺寸为:空口时延乘以拥塞时的上行分组交换业务速率的积除以一个传输块的有效比特数所得的商。 6. The method of controlling network traffic according to claim 4, wherein the step of controlling the C upstream of RLC window size: delay multiplied by the uplink air interface packet switched traffic rate when congestion is divided by a transmission the resulting quotient valid bit number of blocks.
  7. 7. 根据权利要求3所述的网络流量控制的方法,其特征在于,步骤B所述下行流控RLC 窗口尺寸为:拥塞时下行分组交换业务速率与无拥塞时下行分组交换业务速率之比乘以系统配置的RNC侧RLC实体发送端窗口尺寸的积。 7. The method of controlling network traffic according to claim 3, wherein said step B downlink RLC window size for the flow control: ratio of downlink packet-switched traffic rate of downlink packet-switched traffic rate by a congestion when the congestion no in the system configuration of the RNC side product of the window size RLC entity of the transmitting side.
  8. 8. 根据权利要求4所述的网络流量控制的方法,其特征在于,步骤C所述上行流控RLC 窗口尺寸为:拥塞时上行分组交换业务速率与无拥塞时上行分组交换业务速率之比乘以系统配置的RNC侧RLC实体接收端窗口尺寸的积。 8. The method of controlling network traffic according to claim 4, wherein the step of controlling the C upstream of RLC window size: the rate of uplink packet-switched services over packet switched traffic rate of the uplink when no congestion by the congestion in the system configuration of the RNC side RLC entity of the receiving side window size product.
  9. 9. 根据权利要求1所述的网络流量控制的方法,其特征在于,步骤B所述减小RNC侧RLC实体发送端窗口尺寸之后,进一步包括:B1、RNC判断下行拥塞是否解除,如果是,则转到步骤B2 ;否则结束; B2、增加RNC侧RLC实体发送端窗口尺寸。 9. A method of controlling network traffic according to claim, wherein the step of reducing the RNC B-side after the window size RLC entity transmitting side, further comprising: B1, RNC determines whether to terminate a downlink congestion, if so, go to step B2; otherwise, ending; B2, increasing the RNC side RLC entity of the transmitting side window size.
  10. 10. 根据权利要求1所述的网络流量控制的方法,其特征在于,步骤C所述减小UE侧RLC实体改变发送端窗口尺寸之后,进一步包括:C1、RNC判断上行拥塞是否解除,如果是,则转到步骤C2 ;否则结束; C2、增加UE侧RLC发送端窗口尺寸。 10. The method of controlling network traffic according to claim 1, wherein, after step C, the UE decreases the transmission side RLC entity to change the window size end, further comprising: C1, RNC determines whether to terminate an uplink congestion, if , go to step C2; otherwise, ending; C2, the UE side to increase the transmission side RLC window size.
  11. 11. 根据权利要求9所述的网络流量控制的方法,其特征在于,步骤B1所述RNC判断下行拥塞是否解除是通过判断无线链路检测到的下行载波功率是否小于系统设定的拥塞门限实现,如果下行载波功率小于该拥塞门限,则确定下行拥塞已经解除;如果下行载波功率大于或等于该拥塞门限,则确定下行拥塞未解除。 11. The method of claim 9 of controlling network traffic according to claim, wherein the step of B1 RNC determines whether to terminate a downlink congestion is detected by determining whether a wireless link to the downlink carrier power is less than a congestion threshold set by the system to achieve the door , if the downlink carrier power is less than the threshold of congestion, the congestion is determined that the downlink has been released; if the downlink carrier power is greater than or equal to the threshold of congestion, the congestion is determined that the downlink is not canceled.
  12. 12. 根据权利要求10所述的网络流量控制的方法,其特征在于,步骤Cl所述RNC判断上行拥塞是否解除是通过判断无线链路检测到的上行载波功率是否小于系统设定的拥塞门限实现,如果上行载波功率小于该拥塞门限,则确定上行拥塞已经解除;如果上行载波功率大于或等于该拥塞门限,则确定上行拥塞未解除。 12. The method of controlling network traffic according to 10 claim, wherein the step of determining the RNC Cl uplink congestion is detected whether the release is determined by the uplink radio link carrier power is less than a congestion threshold set by the system to achieve the door , if the uplink carrier power is less than the threshold of congestion, the congestion is determined that the uplink has been released; if the uplink carrier power is greater than or equal to the threshold of congestion, the congestion is not determined that the uplink is released.
  13. 13. 根据权利要求9所述的网络流量控制的方法,其特征在于,步骤B2所述增加RNC侧RLC实体发送端窗口尺寸的方法为:RNC侧RLC实体发送端窗口尺寸从拥塞时的发送端窗口尺寸开始,随拥塞解除的时间的增加而增大。 13. The method of claim 9 of controlling network traffic according to claim, wherein the step B2 of the method of increasing the RNC side transmitting side RLC entity window size is: RNC side RLC entity sends transmission window size from the end of congestion start window size, with increasing time of releasing congestion increases.
  14. 14. 根据权利要求10所述的网络流量控制的方法,其特征在于,步骤C2所述增加UE侧RLC实体发送端窗口尺寸的方法为:UE侧RLC实体发送端窗口尺寸从拥塞时的发送端窗口尺寸开始,随拥塞解除的时间的增加而增大。 14. The method of controlling network traffic according to 10 claim, wherein said step C2 method of increasing UE side RLC entity of the transmitting side window size: the congestion window size from the UE side, the transmitting side RLC entity of the transmitting side start window size, with increasing time of releasing congestion increases.
  15. 15. 根据权利要求9所述的网络流量控制的方法,其特征在于,步骤B2所述增加RNC侧RLC实体发送端窗口尺寸的方法为:RNC侧RLC实体根据拥塞时的发送端窗口尺寸和无线链路检测到的下行重传率确定RNC侧RLC实体发送端窗口尺寸。 15. The method of claim 9 of controlling network traffic according to claim, wherein the step B2 of the method of increasing the RNC side transmitting side RLC entity window size is: RNC side RLC entity of the transmitting side and the radio when the window size of the congestion link detection to determine the ratio of downlink retransmission window size RNC side transmitting side RLC entity.
  16. 16. 根据权利要求15所述的网络流量控制的方法,其特征在于,所述RNC侧RLC实体发送端窗口尺寸是:拥塞时的RNC侧RLC实体发送端窗口尺寸加下行重传率之和。 16. A method of controlling network traffic according to claim 15, wherein said transmitting side RLC entity RNC side window size is: RNC side transmitting RLC entity when the congestion window size plus the sum of downlink retransmission rate side.
  17. 17. 根据权利要求10所述的网络流量控制的方法,其特征在于,步骤C2所述增加UE侧RLC实体发送端窗口尺寸的方法为:UE侧RLC实体根据拥塞时的发送端窗口尺寸和无线链路检测到的上行误块率确定UE侧RLC实体发送端窗口尺寸。 17. A method of controlling network traffic according to 10 claim, wherein said step C2 method of increasing UE side RLC entity of the transmitting side window size: RLC entity at the UE side according to the transmission window size and the wireless terminal during congestion link detection block error rate of the uplink UE side determines the window size RLC entity transmitting end.
  18. 18. 根据权利要求17所述的网络流量控制的方法,其特征在于,所述UE侧RLC实体发送端窗口尺寸是:拥塞时的UE侧RLC实体发送端窗口尺寸加上行误块率之和。 18. The method of controlling network traffic according to claim 17, wherein the transmitting side RLC entity of the UE side window size is: UE side RLC entity transmitting when congestion window size plus end of the row and the block error rate.
  19. 19. 根据权利要求9所述的网络流量控制的方法,其特征在于,步骤B2之后进一步包括:判断RNC侧RLC实体发送端窗口尺寸是否大于或等于下行RLC窗口阈值,如果是,则RNC 侧RLC实体将发送端窗口尺寸设置为系统配置的RNC侧RLC实体发送端窗口尺寸,然后结束;否则返回步骤B1。 19. The method of claim 9, the network traffic control as claimed in claim, characterized in that, after the step B2 further comprises: determining the RNC side transmitting side RLC entity window size is greater than or equal to a downlink RLC window threshold value, if yes, the RNC side RLC the transmitting side RLC entity RNC entity configured to set the window size window size system side transmitting end, and then end; otherwise, returns to step B1.
  20. 20. 根据权利要求10所述的网络流量控制的方法,其特征在于,步骤C2之后进一步包括:判断UE侧RLC实体发送端窗口尺寸是否大于或等于上行RLC窗口阈值,如果是,则UE 侧RLC实体将发送端窗口尺寸设置为系统配置的RNC侧RLC实体接收端窗口尺寸,然后结束;否则返回步骤C1。 20. The method of claim 10, the network traffic control as claimed in claim, characterized in that, after the step C2 further comprising: determining the transmission side RLC entity at the UE side window size is greater than or equal to the uplink RLC window threshold value, and if so, the UE side RLC the transmitting side RLC entity RNC entity configured to set a window size of the reception window size terminal end of the system, and then end; otherwise, returns to step C1.
  21. 21. 根据权利要求19所述的网络流量控制的方法,其特征在于,所述下行RLC窗口阈值是系统配置的RNC侧RLC实体发送端窗口尺寸。 21. The method of controlling network traffic according to claim 19, wherein said threshold is a downlink RLC window RNC side RLC entity of the system end configured transmission window size.
  22. 22. 根据权利要求20所述的网络流量控制的方法,其特征在于,所述上行RLC窗口阈值是系统配置的RNC侧RLC实体接收端窗口尺寸。 22. The method of controlling network traffic according to claim 20, wherein the uplink RLC window threshold value is a system configuration RNC side RLC entity receive window size.
  23. 23. 根据权利要求3所述的网络流量控制的方法,其特征在于,步骤B所述RNC侧RLC 实体将发送端窗口尺寸设置为小于下行流控RLC窗口尺寸之后,进一步包括:B1、RNC判断下行拥塞是否解除,如果是,则转到步骤B2 ;否则结束;B2、增加RNC侧RLC实体发送端窗口尺寸。 23. The method of controlling network traffic according to claim 3, wherein said step B RNC side RLC entity sends to the set terminal after the window size is smaller than the downstream control RLC window size, further comprising: B1, RNC determines whether to terminate a downlink congestion, if yes, go to step B2; otherwise, ending; B2, increasing the window size RNC side transmitting side RLC entity.
  24. 24. 根据权利要求3所述的网络流量控制的方法,其特征在于,步骤C所述UE侧RLC实体将发送端窗口尺寸设置为小于上行流控RLC窗口尺寸之后,进一步包括:C1、RNC判断上行拥塞是否解除,如果是,则转到步骤C2 ;否则结束; C2、增加UE侧RLC发送端窗口尺寸。 24. The method of controlling network traffic according to claim 3, wherein said step C UE side RLC entity the transmission window size set after the terminal is smaller than the upstream flow control RLC window size, further comprising: C1, RNC determines uplink congestion if released, if yes, go to step C2; otherwise, ending; C2, the UE side to increase the transmission side RLC window size.
  25. 25. 根据权利要求23所述的网络流量控制的方法,其特征在于,步骤B2之后进一步包括:判断RNC侧RLC实体发送端窗口尺寸是否大于或等于下行RLC窗口阈值,如果是,则RNC 侧RLC实体将发送端窗口尺寸设置为系统配置的RNC侧RLC实体发送端窗口尺寸,然后结束;否则返回步骤Bl。 23 25. The method according to claim network flow control, characterized in that, after the step B2 further comprises: determining the RNC side transmitting side RLC entity window size is greater than or equal to a downlink RLC window threshold value, if yes, the RNC side RLC RNC transmitting side RLC entity will set the window size configured for the system end side entity transmission window size, and then end; otherwise, returns to step Bl.
  26. 26. 根据权利要求24所述的网络流量控制的方法,其特征在于,步骤C2之后进一步包括:判断UE侧RLC实体发送端窗口尺寸是否大于或等于上行RLC窗口阈值,如果是,则UE 侧RLC实体将发送端窗口尺寸设置为系统配置的RNC侧RLC实体接收端窗口尺寸,然后结束;否则返回步骤Cl。 26. The method of claim 24 as claimed in claim network flow control, characterized in that, after the step C2 further comprising: determining the transmission side RLC entity at the UE side window size is greater than or equal to the uplink RLC window threshold value, and if so, the UE side RLC RNC transmitting side RLC entity will set the window size configured for the system end side physical reception window size, and then end; otherwise, returns to step Cl.
  27. 27. 根据权利要求25所述的网络流量控制的方法,其特征在于,所述下行RLC窗口阈值是:下行流控RLC窗口尺寸与一系数的乘积和系统配置的RNC侧RLC实体发送端窗口尺寸两者中的最小值。 27. The method of claim 25 as claimed in claim network traffic control, wherein the threshold is a downlink RLC window: RNC downstream side RLC entity RLC window size control configuration system the product of a coefficient and the transmission window size end both the minimum.
  28. 28. 根据权利要求26所述的网络流量控制的方法,其特征在于,所述上行RLC窗口阈值是:上行流控RLC窗口尺寸与一系数的乘积和系统配置的上行RNC侧RLC实体接收端窗口尺寸两者中的最小值。 28. The method of controlling network traffic according to claim 26, wherein the uplink RLC window threshold value is: upstream side RLC entity RNC upstream control RLC window size multiplied by a coefficient and the system configuration of the receiving side window both the size of the minimum value.
  29. 29. 根据权利要求1所述的网络流量控制的方法,其特征在于,步骤A所述RNC判断网络是下行拥塞还是上行拥塞是RNC根据无线链路检测到的上行和下行载波功率实现,如果下行载波功率超过系统设定的拥塞门限,则确定为下行拥塞;如果上行载波功率超过系统设定的拥塞门限,则确定为上行拥塞。 29. The method of controlling network traffic according to claim 1, wherein the step of determining the RNC A network congestion downlink and uplink congestion is detected by the RNC the wireless link to achieve uplink and downlink carrier power, if the downlink carrier power exceeds the threshold set by the system congestion, congestion is determined for the downlink; if the uplink carrier power exceeds the congestion threshold set by the system, it is determined that the uplink congestion.
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