无线通信网络中拥塞控制方法及其装: Congestion control method in wireless communication network and its installation:
本发明涉及无线通信系统， 特別涉及拥塞控制技术<The present invention relates to a wireless communication system, and more particularly to a congestion control technique.
在无线通信系统中， 无线资源是非常宝贵的， 如何通过有限的资 ¾ 为更多的用户提供服务并保证每个用户的服务质量， 是众人关注的关键 技术问题 通常的做法是： 在用户进行业务接入时， 系统采取准入控制， 避免接入过多的用户而影响小区中已经接入的用户的服务质量； 同时， 在业务接入后， 对小区负载水平进行 J 控， 当小区负载进 拥塞状态时 触发相应的动作， 将小区负载恢复到正常状态， 即进行拥塞控制 相对 而言， 准入控制只在业务接入的时刻进行判决， 当业务接入以后， 随着 用户的移动， 小区的负载必然发生波动， 因此之后的拥塞控制是无线通 信系统中不可或缺的关键技术之一.，In wireless communication systems, wireless resources are invaluable. How to provide services to more users and guarantee the quality of service for each user through limited resources is a key technical issue that everyone pays attention to. The usual practice is: When the service is accessed, the system adopts admission control to avoid accessing too many users and affects the service quality of users already connected in the cell. At the same time, after the service is accessed, the cell load level is controlled by J, when the cell is loaded. When the congestion state is entered, the corresponding action is triggered to restore the cell load to the normal state, that is, the congestion control is performed. In contrast, the admission control is only determined at the time of service access, and after the service is accessed, as the user moves, The load of the cell must fluctuate, so the subsequent congestion control is one of the indispensable key technologies in the wireless communication system.
由于在无线通信系统中， 上下行负载相互独立， 相应的， 拥塞控制 通常也分为上行负载控制和下行负载控制 其中， 下行负载控制一般是 根振小区的下行总发射功率 ( Transmit Carrier Power, 简称 "TCP" )来 进行的。 通常为小区的下行总发射功率预定义一个门限， 如莱小区的下 行总发射功率超过了该预定义的门限， 则判定下行负载进入拥塞状态， 触发相应的解拥塞操作 In the wireless communication system, the uplink and downlink loads are independent of each other. Correspondingly, the congestion control is usually divided into uplink load control and downlink load control. The downlink load control is generally the downlink total transmit power of the rooting cell (Transmit Carrier Power, referred to as "TCP") to carry out. A threshold is generally defined for the downlink total transmit power of the cell. If the total transmit power of the downlink cell exceeds the predefined threshold, the downlink load is determined to enter a congestion state, and the corresponding congestion cancellation operation is triggered.
根据触发拥塞控制的门限的不同， 拥塞控制还可以分为初级拥塞控 制和过栽拥塞控制 Congestion control can also be divided into primary congestion control and over-congestion congestion control according to the threshold of triggering congestion control.
初级拥塞控制的触发门限一般在准入门限以下， 触发初级拥塞控制 的目的是尽量避免小区负载接近准入门限而导致新业务请求接入到小 区时被准入控制拒绝， 也就是说初級拥塞控制是为了让小区预留出一部 分资源来給新接入用户， 因此， 初级拥塞控制也常常被称为负载重整 初级拥塞触发以后， 可以执行的解拥塞操作通常包括： 〗）非实时业 务降速； 2 )异频小区之间的负载平衡； 3 ) 异系统切换； 等等，The trigger threshold for primary congestion control is generally below the entry threshold. The purpose of triggering primary congestion control is to avoid the cell load approaching the quasi-entry limit and causing new service requests to be accessed. The zone time is rejected by the admission control, that is, the primary congestion control is to allow the cell to reserve a part of the resources for the new access user. Therefore, the primary congestion control is often referred to as load reforming primary congestion triggering, and can be performed. The solution congestion operation usually includes: 〖) non-real-time service slowdown; 2) load balancing between different frequency cells; 3) different system switching;
以上对无线通信系统中的拥塞控制进行了简单说明 , 下面对无线通 信装置中主要的通信技术进行简单说明 The above briefly describes the congestion control in the wireless communication system. The following briefly describes the main communication technologies in the wireless communication device.
第三代移动通信（； kd G eratiOT ， 简称 "3G" )是现有无线通信系 统发展的必然趋势 宽带码分多址（ Wideband Code Division Miiitiple Access, 简称 "WCDMA" )是 3G的一种主流技术。 WCDMA标准由第三 代合作伙伴项目 ( 3rd GeneratioB Fartnership Project, 筒称 "3 GPP" ) 制 订， 目前已经有四个版本， 即 R99、 M、 R5和 R6 The third generation of mobile communication (; kd G eratiOT, referred to as "3G") is the inevitable trend of the development of existing wireless communication systems. Wideband Code Division MiIitiple Access (WCDMA) is a mainstream technology of 3G. . The WCDMA standard has been developed by the 3rd Generatio B Fartnership Project (3 GPP) and is currently available in four versions, namely R99, M, R5 and R6.
WCDMA技术标准在 R5版本中引入了高速下行分组接入（ Mgh Speed Dowolink Packet Access,简称 "HSDPA" )技术， HSDPA是 WCDMA 技术第 5版本的重要特性， 通过自适应调制和编码 ( Adaptive Modulation. and Coding,简称 "AMC" )>混合重传（ Hybrid Automatic-Repeat-Reqiiest, 简称 "HARQ" )， 以及基站 （NodeB ) 的快速调度等一系列关键技术， 实现了下行的高速数据传输„ 其中， AMC是根据无线信道变化选择合适 的调制和编码方式的过程。 HARQ是一种混合糾错技术， 混合（Hybrid ) 的意思是它综合了前向纠错（ Forwani Error Correction， 简称 "FEC" ) 和自动重传请求（ Automatic Repeat Request, 简称 "ARQ" )两种技术的 特点。 The WCDMA technology standard introduces Mgh Speed Dowolink Packet Access (HSDPA) technology in the R5 version. HSDPA is an important feature of the fifth version of WCDMA technology, through adaptive modulation and coding (Adaptive Modulation. and Coding (referred to as "AMC") > Hybrid Automatic-Repeat-Reqiiest (HARQ), and a series of key technologies such as fast scheduling of base stations (NodeB), realize high-speed downlink data transmission „ Among them, AMC It is a process of selecting the appropriate modulation and coding method according to the change of the wireless channel. HARQ is a hybrid error correction technology, Hybrid means that it combines Forwani Error Correction ("FEC") and automatic The characteristics of the two techniques of Automatic Repeat Request (ARQ).
为了实现用户下行数据的高速传输， 相对于 WCDMA的 R99版本， HSDPA新增了两个下行物理信道和一个上行物理信道，它们分别是用于 承载用户下行数据的下行的高速物理下行共享信道（ High Speed In order to achieve high-speed transmission of user downlink data, HSDPA adds two downlink physical channels and one uplink physical channel, which are downlink high-speed physical downlink shared channels for carrying downlink data of users, respectively. Speed
Physical Downlink Control Chaone! , 简称 "HS-PDSCH" ), 用于承载解调 伴随數据信道 HS-PDSCH所需的信令的下行高速共享控制信道（High Speed Siiare l Control Channel , 简称 "HS-SCCH" ), 以及用于承载用户 设备（User Eq pment, 简称 "UE" ) 的应答 /无应答（ ACK/NACK )和 信道廣量指示 （CQI ) 等上行反馈信息的上行高速专用物理控制信道 ( High Speed Dedicated Physical Control Channel , 简称 "HS-DPCCH" )。Physical Downlink Control Chaone!, referred to as "HS-PDSCH", for bearer demodulation A High Speed Siiare Control Channel ("HS-SCCH") for signaling required by the data channel HS-PDSCH, and a User Equipment (User Eq pment, referred to as "UE") High Speed Dedicated Physical Control Channel ("HS-DPCCH") for uplink feedback information such as acknowledgment/no response (ACK/NACK) and channel wide quantity indication (CQI).
其中， HS-PDSCH的扩频因子为 16，传输时间间隔（ Transmission Time Interval ,简称 "ΤΤΓ )大小为 2毫秒，每个 ΤΤί内传输一个数据块。 HS- SCCH 与 HS-PDSCH保持固定的时间偏置， 通知 UE HS-DPSCH的传输格式信 息， 包括对应 HS-PDSCH TTl上编码方式、 调制方式， 传输块大小， 以 及版本信息 （重传信息）， HS- DSCH信道码， 以及 UE ID ( UE标识 λ 小区内的各用户共享 HSDPA的所有资源。 一个小区可以使用的 The HS-PDSCH has a spreading factor of 16, and the transmission time interval ("Transmission Time Interval" for short) is 2 milliseconds, and one data block is transmitted in each 。. The HS-SCCH and the HS-PDSCH are fixed at a fixed time offset. And transmitting, to the UE, the transport format information of the HS-DPSCH, including the coding mode, the modulation mode, the transport block size, and the version information (retransmission information), the HS-DSCH channel code, and the UE ID (the UE identifier) corresponding to the HS-PDSCH TT1. Each user in the λ cell shares all resources of HSDPA. A cell can be used.
HS-PDSCH信道最多可达 15个， 每个信道使用的信道码的扩频因子固定 为 36。 这些承载数据的信道可以 4 据用户的数据传输需求和所处的信道 环境， 合理的动态的分配给各个用户， 同一时刻可以把资源按照一定的 比率分配给多个用户， 如图 1所示 通过使用一定的调度算法、 系统还 可以为信道环境好的用户分配更多的 HS-PDSCH信道， 这样就能进一步 提高装置的容量。 可见， HSDM技术非常适合那些数据传输需求具有突 发性 数据传输时延要求比较低的非实时业务， 例如数据下载、 网页浏 在现有的 WCDMA网络中， 下行初级拥塞控制是基于下行总发射功 率来进 ^亍的。The HS-PDSCH channel can be up to 15 channels, and the spreading factor of the channel code used for each channel is fixed at 36. The data carrying channels can be allocated to each user reasonably dynamically according to the data transmission requirements of the user and the channel environment in which the user is located. At the same time, resources can be allocated to multiple users according to a certain ratio, as shown in FIG. Using a certain scheduling algorithm, the system can also allocate more HS-PDSCH channels to users with good channel environment, which can further increase the capacity of the device. It can be seen that the HSDM technology is very suitable for non-real-time services with relatively low data transmission delay requirements for data transmission requirements, such as data downloading and web browsing in existing WCDMA networks, and downlink primary congestion control is based on downlink total transmission power. Come into ^亍.
在步骤 1中，无线网络控制器（ Radio Network Controller,简称" RNC" ) 向基站发送测量控制命令， 指示基站测量下行总发射功率； In step 1, the radio network controller (Radio Network Controller, RNC for short) sends a measurement control command to the base station to instruct the base station to measure the total downlink transmit power.
步驟 2中， 基站根据 RNC的指示， 测量下行的总发射功率， 并将测量 结果上报给 RNC> 将该测量结果记为 ftoi ; 步骤 3中， 进行初级拥塞判决：In step 2, the base station measures the total downlink transmit power according to the indication of the RNC, and reports the measurement result to the RNC> to record the measurement result as ftoi; In step 3, a primary congestion decision is made:
如果下行总发射功率 Ptotal> 预定义的初级拥塞触发门限，则判定小 区存在拥塞的可能， 触发初级拥塞控制搡作； 否则判定小区负载正常 对于现有的下行拥塞控制技术方案， 本发明的发明人在实现本发明 的过程中发现， 该方案对于仅包含 WCDMA R99业务的小区， 其拥塞控 制的效果较好， 但对于包含 HSDPA业务的小区， 无法合理地进行拥塞控 制。 If the downlink total transmit power Ptotal>predefined primary congestion trigger threshold, it is determined that the cell has congestion, triggering the primary congestion control operation; otherwise, determining the cell load is normal. For the existing downlink congestion control technical solution, the inventor of the present invention In the process of implementing the present invention, it is found that the scheme has better effect on congestion control for a cell including only WCDMA R99 services, but congestion control cannot be reasonably performed for a cell including HSDPA services.
因为对于 R99业务、 小区根据用户的实际功率需求进行相应的功率 分配， 小区下行总发射功率的大小真实反 了当前接入的用户的功率需 求， 在这种情况下， 如果小区的总功率超过门限， 会对业务造成负面影 响， 如使得其它用户无法接入该小区， 此时需要进行拥塞控制 与 R99 业务不同， HSDPA业务会在不影响小区其它业务的情况下尽可能使用空 闲的资源， 此时总功率与用户实际需求的功率并不相符， 通常高于用户 的实际功率需求 （即 HSDPA业务的最小功率需求）， 在这种情况下， 即 使小区的总功率超过门限、 也不会对小区产生负面影响， R99业务用户 和 HSDM业务用户依然可以接入该小区， 无需对小区进行拥塞控制。 但 根据现有技术， 在这种情况下会触发不必要的拥塞控制。 发明内容 Because the R99 service and the cell perform corresponding power allocation according to the actual power demand of the user, the total downlink transmit power of the cell is truly opposite to the power requirement of the currently accessed user. In this case, if the total power of the cell exceeds the threshold. If the user is unable to access the cell, the congestion control needs to be different from the R99 service. The HSDPA service uses idle resources as much as possible without affecting other services of the cell. The total power does not match the actual power demand of the user, and is usually higher than the actual power demand of the user (ie, the minimum power requirement of the HSDPA service). In this case, even if the total power of the cell exceeds the threshold, the cell will not be generated. Negative impact, R99 service users and HSDM service users can still access the cell without congestion control on the cell. However, according to the prior art, unnecessary congestion control is triggered in this case. Summary of the invention
本发明实旄方式要解决的主要 *1术问题是提供一种无线通信网络中 拥塞控制方法及其装置， 使得对 HSDPA.小区的下行负载可以进行更为 准确有效的初级拥塞控制。 The main problem to be solved by the present invention is to provide a congestion control method and apparatus in a wireless communication network, so that the downlink load of the HSDPA. cell can be more accurately and effectively used for primary congestion control.
为解决上述技术问题， 本发明的实施方式提供了一种无线通信网络 中拥塞控制方法， 当判定小区中高速下行分组接入 HSDPA业务的最小 功率需求满足第一预定条件， 对该小区中的 HSDPA业务进行解拥塞调 巷To solve the above technical problem, an embodiment of the present invention provides a congestion control method in a wireless communication network. When determining that a minimum power requirement of a high-speed downlink packet access HSDPA service in a cell satisfies a first predetermined condition, HSDPA in the cell Business congestion Lane
本发明的实施方式还提供了一种无线通信网络中拥塞控制装置 , 包 第一判决单元， 用于判断小区中 HSDRA业务的最小功率需求是否 满足,第一預定条件； The embodiment of the present invention further provides a congestion control apparatus in a wireless communication network, and a packet first determining unit is configured to determine whether a minimum power requirement of the HSDRA service in the cell is satisfied, a first predetermined condition;
执行单元、 用于执行解拥塞调整； An execution unit, configured to perform an uncongestion adjustment;
如果笫一判决单元判定小区中 HSDPA.业务的最小功率需求满足笫 —预定条件， 则触发执行单元对该小区中的 HSDPA业务进行解拥塞调 整。 If the first decision unit determines that the minimum power requirement of the HSDPA. service in the cell satisfies the predetermined condition, the execution unit is triggered to perform congestion adjustment on the HSDPA service in the cell.
本发明实拖方式与现有技术相比， 主要区別及其效果在于： 对 HSI3PA业务根据最小功率需求而不是瞬时发射功率进行判决， 不会在 HSDPA业务利用小区剩余的发射功率进行发射时触发不必要的 拥塞控制， 使初级拥塞控制更为准确有效 Compared with the prior art, the main difference and the effect of the present invention are as follows: The HSI3PA service is determined according to the minimum power requirement instead of the instantaneous transmission power, and is not triggered when the HSDPA service uses the remaining transmit power of the cell to transmit. Necessary congestion control to make primary congestion control more accurate and effective
对 HSDM业务独立进行拥塞判决，从而可以对 HSDPA小区的下行 负载进行有针对性的控制、 通过灵活配置各种业务的初级拥塞 Π限来控 制小区中 HSDPA业务的接入比例， 满足各种运营商的不同要求， 同时 保证了系统的稳定性。 附图简要说明 The congestion decision is independently performed on the HSDM service, so that the downlink load of the HSDPA cell can be controlled in a targeted manner, and the primary congestion limit of various services can be flexibly configured to control the access proportion of the HSDPA service in the cell to meet various operators. Different requirements, while ensuring the stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS
图 1是现有技术中 HSDPA资源在多个用户之间的调度示意图； 图 2 是根据本发明笫一实施方式的无线通信网絡中拥塞控制方 法流 £图； 1 is a schematic diagram of scheduling of HSDPA resources among multiple users in the prior art; FIG. 2 is a diagram of a congestion control method flow diagram in a wireless communication network according to an embodiment of the present invention;
图 3 是根据本发明第一实施方式的无线通信网络中拥塞控制方 法中网络举例示意图； 3 is a schematic diagram showing an example of a network in a congestion control method in a wireless communication network according to a first embodiment of the present invention;
图 4 是根据本发明笫三实施方式的无线通信网絡中拥塞控制装 置结构图。 实施本发明的方式4 is a congestion control device in a wireless communication network according to a third embodiment of the present invention. Set the structure diagram. Mode for carrying out the invention
为使本发明的目的、 技术方案和优点更加清楚 下面将结合酎图对 本发明作进一步地详细描述。 In order to make the objects, technical solutions and advantages of the present invention more comprehensible, the present invention will be further described in detail below.
本发明第一实施方式涉及一种无线通信网络中拥塞控制方法.， 在本 实施方式中， 通过对 HSDM业务和 R99业务独立进行拥塞判决， 使得对 HSDRA小区的下行负载进行有针对性的控制； 通过灵活配置各种业务的 判决门限来控制小区中各种业务的接入比例， 满足各种运营商的不同要 求， 同时保证了系统的稳定性。 A first embodiment of the present invention relates to a congestion control method in a wireless communication network. In this embodiment, a congestion decision is performed independently on an HSDM service and an R99 service, so that targeted control of a downlink load of an HSDRA cell is performed; By flexibly configuring the decision thresholds of various services to control the access proportions of various services in the cell, the requirements of various operators are met, and the stability of the system is ensured.
具体如图 2所示， 在步骤 210中， 判断小区中 业务的最小功率 需求是否满足第一预定条件， 读第一预定条件是： 小区中 业务的 最小功率需求大于第一门限， 或者 小区中 HSDPA业务的最小功率需求 占小区总发射功率的比例超过第二门限， 如杲满足该第一预定条件， 则 进入步骤 220; 反之则直接进入步骤 由于是很据最小功率需求 ¾不 是瞬时发射功率对 HSDPA业务进行判决，在 HSDM业务利用小区剩余的 发射功率进行发射时瞬时发射功率虽然较大， 但最小功率需求.可能较 小, 此时不会触发不必要的拥塞控制， 使初级拥塞控制更为准确有效,， 在步骤 220中， 对该小区中的 HSDPA业务进行解拥塞调整 在进行 解拥塞调整时， 可以先对 d、区中所有的 HSDPA业务用户按用户优先级进 行排序， 再选择优先级最低的 HSDM业务用户执行解拥塞搡作， 从而保 证高优先级用户可以得到良好的业务体验 这里的解拥塞搡作通常包 括： 降低用户下行 HSDPA.业务的数据传输速率， 在异频小区之间进行 HSDPA业务的切换等。优先级最低的 HSDPA业务用户可能是一个也可能 是多个， 如果有多个， 可以对所有优先级最低的 HSDM业务用户一起进 行调整， 也可以只^ "其中的一个或几个进行调整 调整时可以一步到位 地进行调整， 也可以逐级地进行调整 此后回到步骤; H0。Specifically, as shown in FIG. 2, in step 210, it is determined whether the minimum power requirement of the service in the cell meets the first predetermined condition, and the first predetermined condition is read: the minimum power requirement of the service in the cell is greater than the first threshold, or the HSDPA in the cell The ratio of the minimum power requirement of the service to the total transmit power of the cell exceeds the second threshold. If the first predetermined condition is met, then step 220 is entered; otherwise, the direct entry step is based on the minimum power requirement 3⁄4 is not the instantaneous transmit power to HSDPA. The service makes a decision. When the HSDM service uses the remaining transmit power of the cell to transmit, the instantaneous transmit power is large, but the minimum power demand may be small. At this time, unnecessary congestion control is not triggered, and the primary congestion control is more accurate. For example, in step 220, the congestion adjustment of the HSDPA service in the cell is performed. When the congestion adjustment is performed, all HSDPA service users in the area may be sorted according to the user priority, and then the priority is selected to be the lowest. HSDM service users perform congestion-carrying operations to ensure that high-priority users can get good Service Experience The solution to congestion in this case usually includes: reducing the data transmission rate of the downlink HSDPA service of the user, and switching the HSDPA service between the inter-frequency cells. The HSDPA service users with the lowest priority may be one or more. If there are multiple, you can join all the lowest priority HSDM service users. Line adjustment, you can also adjust only one or several of them when you make adjustments, you can adjust them one step at a time, or you can adjust them step by step. Then return to the step; H0.
在步骤 230中， 判断小区中 R99业务的瞬时发 功率是否满足第二預 定条件 谅第二预定条件是， 小区中 R99业务的瞬时发射功率大于第三 门限， 或者， 小区中 R99业务的瞬时发射功率占小区总发射功率的比例 超过第四门限 如果满足该第二预定条件、 则进入步骤 240; 反之则直 接进入步骤: 250。 In step 230, it is determined whether the instantaneous transmit power of the R99 service in the cell satisfies the second predetermined condition. The second predetermined condition is that the instantaneous transmit power of the R99 service in the cell is greater than the third threshold, or the instantaneous transmit power of the R99 service in the cell. The ratio of the total transmit power of the cell exceeds the fourth threshold. If the second predetermined condition is met, the process proceeds to step 240; otherwise, the process proceeds directly to step 250.
在步骤 240中， 对谅小区中的 R99业务进行解拥塞调整 在进行解拥 塞调整时 , 可以先对小区中所有的 R99业务用户按用户优先级进行排序， 再对优先级最低的 R99业务用户执行解拥塞操作， 从而保证髙优先级用 户可以得到良好的业务体验 这里的解拥塞操作通常包括： 降低用户下 行 R.99业务的数据传输速率，在异频小区之间进行 R99业务的切换等，具 体可参考现有技术 此后回到步骤 210 In step 240, the congestion adjustment of the R99 service in the cell is performed. When the congestion adjustment is performed, all the R99 service users in the cell are first sorted according to the user priority, and then the R99 service user with the lowest priority is executed. The congestion operation is performed to ensure that the priority user can obtain a good service experience. The congestion cancellation operation here usually includes: reducing the data transmission rate of the downlink R.99 service of the user, and switching the R99 service between the inter-frequency cells, etc. Referring to the prior art, the process returns to step 210.
在步骤 250中，判断小区中 HSDPA业务的最小功率需求与 R99业务的 瞬时发射功率之和是否满足第三预定条件、 该第三预定条件可以是： 小 区中 HSDM业务的最小功率需求与 R99业务的瞬时发射功率之和大于第 五门限， 或者， 小区中 HSDM业务的最小功率需求与 R99业务的瞬时发 射功率之和占小区总发射功率的比^超过第六门限。通过将 HSDPA业务 的最小功率需求与 业务的瞬时发射功率之和作为拥塞判决的条件之 一， 确保了装置在总体上能够维持合理的负载， 保证装置的稳定性 如 果满足第三预设条件， 则进入步骤 260， 否则回到步骤 210。 In step 250, it is determined whether the sum of the minimum power requirement of the HSDPA service in the cell and the instantaneous transmit power of the R99 service satisfies a third predetermined condition, and the third predetermined condition may be: a minimum power requirement of the HSDM service in the cell and a R99 service. The sum of the instantaneous transmit powers is greater than the fifth threshold, or the ratio of the sum of the minimum power demand of the HSDM service in the cell to the instantaneous transmit power of the R99 service to the total transmit power of the cell exceeds the sixth threshold. By taking the sum of the minimum power requirement of the HSDPA service and the instantaneous transmit power of the service as one of the conditions of the congestion decision, it is ensured that the device can maintain a reasonable load as a whole, and the stability of the device is ensured if the third preset condition is met. Proceed to step 260, otherwise return to step 210.
在步骤 260中， 对该小区中的 HSD 业务和 R99业务进行解拥塞调 整 可以只对其中的一个业务进行解拥塞调整， 如；！艮据預先设定的 HSDM业务和 R99业务的相对优先级， 对相对优先级较低的： BSDPA业务 或 R99业务进行解拥塞调整， 从而使解拥塞调整可以更好地符合运营商 的运营策略。具体的调整方法与步骤 220和步骤 240相同，在此不再赘述„ 还可以对两个业务进行统一解拥塞调整，如首先对小区中所有的 HSI3PA 业务用户和 R99业务用户按用户优先级进行统一排序； 再选择优先级最 低的 业务用户或 R99业务用户执行解拥塞搡作In step 260, the congestion adjustment of the HSD service and the R99 service in the cell may be performed on only one of the services, such as; According to the pre-set HSDM service and the relative priority of the R99 service, the congestion reduction adjustment is performed on the BSDPA service or the R99 service with lower priority, so that the congestion adjustment can better conform to the operator. Operational strategy. The specific adjustment method is the same as the step 220 and the step 240. The details of the adjustment are not described here again. The congestion adjustment can be performed on the two services. For example, all the HSI3PA service users and R99 service users in the cell are unified according to the user priority. Sort; select the lowest priority business user or R99 business user to perform the congestion
需要说明的是， 本实施方式中步骤 210、 220和步骤 230、 240之间并 不需要固定的先后关系， 可以如图 2所示， 先执行步驟 210、 220， 再执 行步骤 230、 240; 也可以先执行步骤 230、 240,再执行步骤; 210、 220 (即 将图 2中的步骤 210与步骤 230位置对换， 步骤 220与步骤 240步骤对换 λ 只要在对 HSDPA业务的最小功率需求与 R99业务的瞬时发射功率之和进 行综合判断之前， 先对 HSDPA业务的最小功率需求与 R99业务的瞬时发 射功率分別进行判断即可 It should be noted that, in this embodiment, steps 210 and 220 and steps 230 and 240 do not need a fixed sequence relationship. As shown in FIG. 2, steps 210 and 220 may be performed first, and steps 230 and 240 may be performed. Steps 230 and 240 may be performed first, and then steps are performed; 210, 220 (ie, step 210 and step 230 in FIG. 2 are swapped, and step 220 and step 240 are replaced by λ as long as the minimum power requirement for HSDPA service is R99. Before the comprehensive judgment of the instantaneous transmission power of the service, the minimum power requirement of the HSDPA service and the instantaneous transmission power of the R99 service are respectively determined.
在本实施方式中，第一到第六门限是由运营商根据自身要求决定的， 其中第一、 第三、 第五门限是一个功率绝对值， 而第二、 第四、 第六门 限是一个百分比。 可以通过灵活配置上述各种业务的判决 Π限来控制小 区中各种业务的接入比例、 满足各种运营商的不同要求， 同时提供装置 稳定保证。 In this embodiment, the first to sixth thresholds are determined by the operator according to their requirements, wherein the first, third, and fifth thresholds are absolute values of power, and the second, fourth, and sixth thresholds are one. percentage. By flexibly configuring the decision limits of the various services described above, it is possible to control the access ratio of various services in the small area, meet the different requirements of various operators, and provide device stability guarantee.
比如说、 在图:所示的网络中 运营商在某热点区域提供了 fl和 f2两 个频率的小区覆盖， 分別对应小区 1和小区 2, 读热点区域周围存在两个 使用频率 fl的小区， 提供 R99服务。 为了优先保证相邻小区中： 99业务能 够颍利切换到同频（频率: Π )的 HSDJRA小区， 可以把该小区中的 HSI3M 业务的判断门限控制在一个较低的水平， 使得相邻小区中的 R99业务用 户能够较容易地切换到同频的 HSDM小区。 For example, in the network shown in the figure: the operator provides the cell coverage of the two frequencies f and f2 in a hotspot area, corresponding to the cell 1 and the cell 2 respectively, and there are two cells using the frequency fl around the reading hot spot area. Provide R99 service. In order to preferentially ensure that the 99th service can be successfully switched to the HSDJRA cell of the same frequency (frequency: Π) in the neighboring cell, the threshold of the HSI3M service in the cell can be controlled to a lower level, so that the neighboring cell is in the neighboring cell. The R99 service user can switch to the HSDM cell of the same frequency more easily.
上述方法实施方式中采用的技术方案中，当步骤 2ί0判断为否时进入 步骤 230，且步骤 0判断为否时进入步骤 250。即、 只有当小区中 业务的最小功率需求不满足笫一预定条件， 且小区中 R99业务的瞬时发 射功率不满足第二预定条件时， 才判断 HSDM业务的最小功率需求与 RS99业务的瞬时发射功率之和是否满足第三预定条件In the technical solution adopted in the foregoing method implementation manner, when the determination in step 2ί0 is NO, the process proceeds to step 230, and when the determination in step 0 is negative, the process proceeds to step 250. That is, only when the minimum power requirement of the service in the cell does not satisfy the predetermined condition, and the instantaneous transmission of the R99 service in the cell When the radio power does not satisfy the second predetermined condition, it is judged whether the sum of the minimum power requirement of the HSDM service and the instantaneous transmit power of the RS99 service satisfies the third predetermined condition.
在实际操作中 , 还可以采用以下技术方案： In practice, the following technical solutions can also be used:
( 1 )不包括步骤 250和 260, 而其他步骤以及步骤之间的相互关系， 和上迷实施方式相同 (1) Excluding steps 250 and 260, and the other steps and the relationship between the steps are the same as the above implementation
( 2 )不包括步骤 250和 260， 其他步骤的变化为： 步骤 210判断为是 执行步骤 220。 此时， 也执行步骤 230的判断， 如果判断为是， 则执行步 骤 240, 此种方式下， 步驟 210和 230的执行順序不影响本发明实施方式 技术方案的实现。 (2) Excluding steps 250 and 260, the other steps are changed as follows: Step 210 is determined to be step 220. At this time, the determination of step 230 is also performed. If the determination is yes, step 240 is performed. In this manner, the execution order of steps 210 and 230 does not affect the implementation of the technical solution of the embodiment of the present invention.
( 3 ) 不包含步骤 230和 240 当步骤 210判断为否时， 执行步骤 250， 即： 如果小区中 HSDPA业务的最小功率需求不满足第一预定条件， 则直 接判断小区中 HSDPA业务的最小功率需求和 R99业务的瞬时发.射功率之 和是否满足第三预定条件 (3) Steps 230 and 240 are not included. When the determination in step 210 is NO, step 250 is performed, that is, if the minimum power requirement of the HSDPA service in the cell does not satisfy the first predetermined condition, the minimum power requirement of the HSDPA service in the cell is directly determined. Whether the sum of the instantaneous transmission power of the R99 service satisfies the third predetermined condition
本发明第二实施方式同样涉及一种无线通信网絡中拥塞控制方法， 与第一实施方式大致相同、 其区別在于， 第一实施方式中直接根据三个 预设条件分別进行上述的三种判断； 而在本实施方式中， 为每个判决设 置一个开关， 在需要进行谅判决时使能该开关， 触发相应的判决功能、 进行对应的判决并在满足对应条件时执行相应解拥塞调整。 这里所说的 判决包含第一实施方式中所说的小区中 HSDM业务的最小功率需求是 否满足第一预定条件的判决 （判决 A )、 小区中 R99业务的瞬时发射功率 是否满足第二预定条件的判决（判决 B )、和小区中 HSDPA业务的最小功 率需求与 R99业务的瞬时发射功率之和是否满足第三预定条件的判决 (判决 C )。 通过为每个初级拥塞的判决设置打开或者关闭的开关， 可以 满足不同网络的运营需求、 实现起来更为人性化。 其中， 如果至少有判 决 C和判决 A被设置为执行（打开）， 则在判决. A判定小区 tHSDPA业务 的最小功率需求不满足第一预定条件时，执行判决 C; 如果至少有判决 C 和判决 B被设置为执行（打开）， 则在判决 B判定小区中 R99业务的瞬时 发射功率不满足第二预定条件时， 执行判决。。The second embodiment of the present invention also relates to a congestion control method in a wireless communication network, which is substantially the same as the first embodiment, and the difference is that, in the first embodiment, the foregoing three determinations are directly performed according to three preset conditions; In the present embodiment, a switch is set for each decision, the switch is enabled when the decision is made, the corresponding decision function is triggered, the corresponding decision is made, and the corresponding congestion adjustment is performed when the corresponding condition is met. The decision mentioned here includes whether the minimum power requirement of the HSDM service in the cell in the first embodiment satisfies the first predetermined condition (decision A), and whether the instantaneous transmission power of the R99 service in the cell satisfies the second predetermined condition. The decision (decision B), and whether the sum of the minimum power demand of the HSDPA service in the cell and the instantaneous transmit power of the R99 service satisfies the third predetermined condition (decision C). By setting an open or closed switch for each primary congestion decision, the operational needs of different networks can be met and the implementation is more user-friendly. Wherein, if at least the decision C and the decision A are set to be executed (open), then in the decision. A determines the cell tHSDPA service If the minimum power requirement does not satisfy the first predetermined condition, the decision C is performed; if at least the decision C and the decision B are set to be executed (open), then the decision B determines that the instantaneous transmit power of the R99 service does not satisfy the second predetermined When the conditions are met, the judgment is executed. .
本发明第三实施方式涉及一种无线通信网絡中拥塞控制装置 如图 4 所示， 包括第一判决单元， 用于判断小区中 HSI3PA业务的最小功率需求 是否满足第一预定条件； 执行单元， 用于执行解拥塞调整。 由于是.根据 最小功率需求而不是瞬时发射功率对 HSDM业务进行判决， 因此在 A third embodiment of the present invention relates to a congestion control apparatus in a wireless communication network, as shown in FIG. 4, including a first determining unit, configured to determine whether a minimum power requirement of an HSI3PA service in a cell satisfies a first predetermined condition; Perform congestion relief adjustments. Because it is based on the minimum power demand rather than the instantaneous transmit power, the HSDM service is judged, so
业务利用小区剩余的发射功率进行发射时不会触发不必要的拥 塞控制， 使初级拥塞控制更为准确有效。 如杲第一判决单元判定小区中 HSDM业务的最小功率需求满足第一预定条件， 则触发执行单元对该小 区中的 HSDM业务进行解拥塞调整 该第一预定条件可以是： 小区中 HSD 业务的最小功率需求大于第一门限， 或者， 小区中 HSDM业务的 最小功率需求占小区总发射功率的比例超过第二门限. i 执行单元在对 小区中 HSDPA业务进行解拥塞调整时，先对小区中所有的 HSD.PA业务用 户按用户优先级进行排序、再选择优先级最低的 业务用户执行解 拥塞操作。 从而保证高优先级用户可以得到良好的业务体验。 When the service uses the remaining transmit power of the cell to transmit, it does not trigger unnecessary congestion control, making the primary congestion control more accurate and effective. If the first determining unit determines that the minimum power requirement of the HSDM service in the cell meets the first predetermined condition, the triggering execution unit performs de-congestion adjustment on the HSDM service in the cell. The first predetermined condition may be: a minimum HSD service in the cell. The power requirement is greater than the first threshold, or the ratio of the minimum power requirement of the HSDM service in the cell to the total transmit power of the cell exceeds the second threshold. The execution unit performs the congestion adjustment on the HSDPA service in the cell, first all the cells in the cell. The HSD.PA service user sorts according to the user priority and then selects the service user with the lowest priority to perform the congestion-free operation. This ensures that high-priority users can get a good business experience.
该装置还可以包括： 第二判决单元， 用于判断小区中 R99业务的瞬 时发射功率是否满足第二预定条件； 如果第二判决单元判定小区中 R99 业务的瞬时发射功率满足第二预定条件， 则触发该执行单元对该小区中 的 R99业务进行解拥塞调整。 该第二预定条件可以是： 小区中 R99业务的 瞬时发射功率大于第三门限， 或者， 小区中 业务的瞬时发射功率占 小区总发射功率的比例超过第四门限。 该执行单元在对小区中 R99业务 进行解拥塞调整时， 先对小区中所有的 R99业务用户按用户优先级进行 排序； 再选择优先级最低的 R99业务用户执行解拥塞操作 从而保证高 优先級用户可以得到良好的业务体验。 该装置还可以包括： 第三判决单元， 用于当小区中 HSD3PA业务的最 小功率需求不满足第一预定条件，且该小区中 R99 业务的瞬时发射功率 不满足第二預定条件时， 判断小区中 HSDM业务的最小功率需求与 R99 业务的瞬时发射功率之和是否满足第三预定条件； 如果是， 则触发执行 单元对该小区中的 HSDPA业务和 R99业务进行解拥塞调整 通过将 HSDM业务的最小功率需求与 R99业务的瞬时发射功率之和作为拥塞判 决的条件之一， 确保了装置在总体上能够维持合理的负载， 保证装置的 稳定性。The apparatus may further include: a second determining unit, configured to determine whether the instantaneous transmit power of the R99 service in the cell satisfies a second predetermined condition; if the second determining unit determines that the instantaneous transmit power of the R99 service in the cell satisfies the second predetermined condition, The execution unit is triggered to perform congestion cancellation adjustment on the R99 service in the cell. The second predetermined condition may be: the instantaneous transmit power of the R99 service in the cell is greater than the third threshold, or the ratio of the instantaneous transmit power of the service in the cell to the total transmit power of the cell exceeds the fourth threshold. When performing the congestion adjustment on the R99 service in the cell, the execution unit first sorts all the R99 service users in the cell according to the user priority; then selects the R99 service user with the lowest priority to perform the congestion cancellation operation to ensure the high priority user. Can get a good business experience. The apparatus may further include: a third determining unit, configured to: when the minimum power requirement of the HSD3PA service in the cell does not satisfy the first predetermined condition, and the instantaneous transmit power of the R99 service in the cell does not satisfy the second predetermined condition, determine the cell Whether the sum of the minimum power requirement of the HSDM service and the instantaneous transmission power of the R99 service satisfies a third predetermined condition; if yes, the triggering execution unit performs congestion cancellation adjustment on the HSDPA service and the R99 service in the cell by using the minimum power of the HSDM service. The sum of the demand and the instantaneous transmit power of the R99 service is one of the conditions for the congestion decision, ensuring that the device as a whole can maintain a reasonable load and ensure the stability of the device.
i 笫一判决单元在判定 HSDPA业务的最小功率需求不满足第一预 定条件时指示第二判决单元进.行判断， 笫二判决单元在判定小区中 R99 业务的瞬时发射功率不满足第二预定条件时， 指示第三判决单元进行判 断； 或者 The first determining unit instructs the second determining unit to determine whether the minimum power requirement of the HSDPA service does not satisfy the first predetermined condition, and the second determining unit determines that the instantaneous transmitting power of the R99 service does not satisfy the second predetermined condition in the determining cell. Instructing the third decision unit to make a judgment; or
读第二判决单元在判定小区中 R99业务的瞬时发射功率不满足第二 預定条件时指示笫一判决单元进行判断 > 第一判决单元在判定 HSDPA业 务的最小功率需求不满足第一预定条件时、 指示第三判决单元进行判 断。 The read second decision unit instructs the first decision unit to make a determination when the instantaneous transmit power of the R99 service in the determined cell does not satisfy the second predetermined condition. > When the first decision unit determines that the minimum power requirement of the HSDPA service does not satisfy the first predetermined condition, The third decision unit is instructed to make a determination.
该执行单元可以根据预先设定的 HSDM业务和 R99业务的相对优先 级， 对相对优先级较低的 HSDi¾业务或 R99业务进行解拥塞调整， 从而 使解拥塞调整可以更好地符合运营商的运营！:略； 也可以先对小区中所 有的 HSDPA业务用户和 R99业务用户按用户优先级进行统一排序， 再选 择优先级最低的 HSDFA业务用户或 R99业务用户执行解拥塞操作 The execution unit can perform congestion adjustment on the HSDi3⁄4 service or the R99 service with lower priority according to the preset priority of the HSDM service and the R99 service, so that the congestion adjustment can better conform to the operation of the operator. ! It is also possible to first sort all HSDPA service users and R99 service users in the cell according to the user priority, and then select the HSDFA service user or the R99 service user with the lowest priority to perform the congestion cancellation operation.
根据上述各单元， 使得装置可以通过灵活配置上迷各种业务的判决 门限来控制小区中各种业务的接入比例， 满足各种运营商的不同要求， 同时提供了装置稳定保证。 According to the foregoing units, the device can control the access proportions of various services in the cell by flexibly configuring the decision thresholds of various services, satisfy different requirements of various operators, and provide device stability guarantee.
该装置还可以包括控制单元， 用于控制上述的笫一判决单元、 笫二 判决单元、 第三判决单元的开和关， 只有在控制单元使能对应的判决单 元时， 才进行相应判决和操作 其中， 如杲只有第一判决单元和第三判 决单元被使能， 则第一判决单元在判定小区中 HSDPA业务的最小功率需 求不满足第一颈定条件时， 指示第三判决单元执行其判决 如果只有第 二判决单元和第三判决单元被使能， 则在笫二判决单元判定小区中 R99 业务的瞬时发射功率不满足第二预定条件时， 指示第三判决单元执行其 判决。 如果三个判决单元均被使能， 则各判决单元按照本实施方式之前 提出的方式进 f触发和判决 通过谅控制单元、 使得该装置可以满足不 同网络的运营需求， 实现起来更为人性化。The device may further comprise a control unit for controlling the first determining unit, the second The decision unit and the third decision unit are turned on and off. Only when the control unit enables the corresponding decision unit, the corresponding decision and operation are performed. If only the first decision unit and the third decision unit are enabled, then A decision unit instructs the third decision unit to perform its decision if the minimum power requirement of the HSDPA service in the cell does not satisfy the first neck condition, if only the second decision unit and the third decision unit are enabled, then the second decision When the unit determines that the instantaneous transmit power of the R99 service in the cell does not satisfy the second predetermined condition, the third decision unit is instructed to perform its decision. If all three decision units are enabled, each decision unit triggers and decides to pass the control unit according to the manner previously proposed in the present embodiment, so that the device can meet the operational requirements of different networks, and is more humanized.
本实施方式中， 该装置可以作为 RNC的一个模块存在， 也可以在系 统中其它设备中存在， 甚至作为一个独立设备存在 In this embodiment, the device may exist as a module of the RNC, or may exist in other devices in the system, or even exist as a standalone device.
综上所述， 在本发明的各实施方式中， 对 HSDPA业务根据最小功率 需求而不是瞬时发射功率进行判决，不会在 HSDPA业务利用小区剩余的 发射功率进行发射时触发不必要的拥塞控制， 使初級拥塞控制更为准确 有效。 In summary, in various embodiments of the present invention, the HSDPA service is determined according to the minimum power requirement instead of the instantaneous transmit power, and the unnecessary congestion control is not triggered when the HSDPA service uses the remaining transmit power of the cell to transmit. Make primary congestion control more accurate and effective.
对 HSDPA业务和 业务独立进行拥塞判决， 从而可以对 小 区的下行负载进行有针对性的控制， 通过灵活配置各种业务的初级拥塞 门限来控制小区中各种业务的接入比例， 满足各种运营商的不同要求， 同时保证了系统的稳定运行 The congestion decision is performed independently for the HSDPA service and the service, so that the downlink load of the cell can be controlled in a targeted manner, and the primary congestion threshold of various services can be flexibly configured to control the access proportion of various services in the cell to meet various operations. Different requirements of the business, while ensuring the stable operation of the system
还可以将 HSD 业务的最小功率需求与 R99业务的瞬时发射功率之 和作为拥塞判决的条件之一， 从而保证装置在总体上維持合理的负载， 保证了系统的稳定运行。 It is also possible to use the sum of the minimum power requirement of the HSD service and the instantaneous transmit power of the R99 service as one of the conditions of the congestion decision, thereby ensuring that the device maintains a reasonable load as a whole and ensures stable operation of the system.
在进行解拥塞调整时， 将小区中相关业务用户根据用户优先级进行 排序， 对优先级最低的用户进 行解拥塞操作， 从而保证高优先级用户 可以得到良好的业务体验。 可以设置: HSDPA业务和 R99业务之间的相对优先级关系， 在 HSDPA 业务的最小功率需求与 R99业务的瞬时发射功率之和超过门限时， 选择 相对优先级较低的业务进.行解拥塞调整， 从而使解拥塞调整可以更好地 符合运营商的运营策略When the congestion adjustment is performed, the related service users in the cell are sorted according to the user priority, and the user with the lowest priority is de-congested to ensure that the high-priority user can obtain a good service experience. You can set: the relative priority relationship between the HSDPA service and the R99 service. When the sum of the minimum power demand of the HSDPA service and the instantaneous transmit power of the R99 service exceeds the threshold, select a service with a lower priority to implement congestion adjustment. So that the congestion adjustment can better match the operator's operational strategy.
先对 HSDPA业务和 R99业务独立进行拥塞判决和拥塞控制， 再对 First, the congestion decision and congestion control are independently performed on the HSDPA service and the R99 service, and then
HSDM业务的最小功率需求与 R99业务的瞬时发射功率之和进行拥塞判 决和拥塞控制， 可以防止出现不合理的调整。 例如， 系统中规定 HSDM 业务的最小功率需求超过系统总功率的 30 % > R99业务的瞬时发射功率 超过系统总功率的 30 ¾、 或 H.SDPA业务的最小功率需求与 R99业务的瞬 时发射功率之和超过系统总功率的 55 %时触发相应的调整 假定当前系 统中 HSDM业务的最小功率需求占系统总功率的 50 % , 而 R99业务的瞬 时发射功率占系统总功率的 10 %，如果先才艮据 HSDPA业务的最小功率需 求与 R99业务的瞬时发射功率之和进行拥塞判决和拥塞控制， 而且 R99 业务的优先级低亍 HSDPA.业务的优先級，则会对 业务进行拥塞控制， 此后再根据 HSD 业务的最小功率需求进行拥塞判决时又会触发对 HSDPA业务的拥塞控制， 总共需要进行两次拥塞控制， 而且原本正常的 R99业务受到了限制， 显得不合理了 如果根据 HSDM业务的最小功率 需求进行拥塞判决和拥塞控制， 则只要对 HSDM业务进行拥塞控制就可 以了Congestion judgment and congestion control are performed on the sum of the minimum power demand of the HSDM service and the instantaneous transmission power of the R99 service, which can prevent unreasonable adjustment. For example, the minimum power requirement for the HSDM service in the system exceeds 30% of the total system power > The instantaneous transmit power of the R99 service exceeds 30 3⁄4 of the total system power, or the minimum power demand of the H. SDPA service and the instantaneous transmit power of the R99 service. And the corresponding adjustment is triggered when the system exceeds 55% of the total power of the system. It is assumed that the minimum power requirement of the HSDM service in the current system accounts for 50% of the total power of the system, and the instantaneous transmission power of the R99 service accounts for 10% of the total power of the system. Congestion decision and congestion control are performed according to the sum of the minimum power requirement of the HSDPA service and the instantaneous transmit power of the R99 service, and the priority of the R99 service is lower than the priority of the HSDPA. The traffic congestion control is performed, and then according to the HSD. The minimum power requirement of the service will trigger the congestion control of the HSDPA service when the congestion decision is made. A total of two congestion control needs to be performed, and the normal R99 service is restricted, which is unreasonable if the minimum power requirement of the HSDM service is required. Congestion judgment and congestion control, as long as the HSDM service is carried out Plug can be controlled with the
可以为每个初级拥塞的判决设置打开或者关闭的开关， 以满足不同 网络的运营需求， 只有当开关打开时， 才能够触发相应业务的初级拥塞 并执行解拥塞动作 It is possible to set an open or close switch for each primary congestion decision to meet the operational needs of different networks. Only when the switch is turned on can the primary congestion of the corresponding service be triggered and the congestion relief action be performed.
虽然通过参照本发明的某些优选实施方式， 已经对本发明进行了图 示和描述、 但本领域的普通技术人员应该明白， 可以在形式上和细节上 对其作各种改变， 而不偏离本发明的精神和范围。 The present invention has been illustrated and described with reference to the preferred embodiments of the present invention, but those skilled in the art The spirit and scope of the invention.
| Application Number | Priority Date | Filing Date | Title |
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| CN200710085326.9 | 2007-02-28 | ||
| CNB2007100853269ACN100536605C (en) | 2007-02-28 | 2007-02-28 | Congestion control method and device in the radio communication network |
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| PCT/CN2007/071092WO2008104114A1 (en) | 2007-02-28 | 2007-11-19 | A congestion controlling method and device thereof in wireless communication network |
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