WO2017071595A1 - Interference management method and system - Google Patents
Interference management method and system Download PDFInfo
- Publication number
- WO2017071595A1 WO2017071595A1 PCT/CN2016/103429 CN2016103429W WO2017071595A1 WO 2017071595 A1 WO2017071595 A1 WO 2017071595A1 CN 2016103429 W CN2016103429 W CN 2016103429W WO 2017071595 A1 WO2017071595 A1 WO 2017071595A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cell
- interference
- user
- frequency band
- managed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
- H04W28/086—Load balancing or load distribution among access entities
- H04W28/0861—Load balancing or load distribution among access entities between base stations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
Definitions
- the present application relates to network communication technologies, and in particular, to an interference management method and system.
- the present application claims priority to 2015107296858, and the filing date is October 30, 2015, the priority of the prior application entitled "Interference Management Method, System”.
- the increasingly dense network deployment makes the network topology more complicated. Due to the dense nature of the network and service units, there are a large number of interference sources. Compared with the traditional network, it has the strongest interference ratio, many interference sources, and various The interference caused by the interference source is roughly equivalent. At the same time, as the number of small stations increases, the network overlaps, the overlapping area of the cell increases, the interference of the neighboring area increases, the number of interfering cells increases, and the network dynamics increase, resulting in interference management. More challenging.
- the ICIC (Inter-Cell Interference Coordination) and eICIC (Enhanced Inter-Cell Interference Coordination) strategies in the traditional scheme have been unable to completely solve the interference problem of dense network deployment.
- the technical problem to be solved by the present invention is how to design a more effective and reasonable interference management method or system for an ultra-dense network.
- the present invention provides an interference management method, the method comprising the following steps:
- the reference signal power transmitted by the base station corresponding to the cell to be equalized is increased by a predetermined value for each of the cells to be equalized;
- the frequency bands of the managed cells are respectively divided into an edge user frequency band and a central user frequency band according to the parameters of the edge users in the managed cells and all user parameters; the edge user is then The frequency band is allocated to the edge users in the managed corresponding cell, the central user frequency band is allocated to the central user in the managed corresponding cell, and the interference user is used for the edge user to perform interference management, and the interference consumption resource avoidance is adopted for the central user.
- Mechanism for interference management is
- a system comprising a centralized manager and a cluster controller
- the centralized manager includes a load analysis module and a load balancing module
- the load analysis module is configured to determine, according to the load of each cell managed by the system, whether there is a cell to be balanced in each cell managed by the system, where the to-balanced cell is not an overloaded cell, and the neighboring cell is overloaded. a cell of a cell;
- the load balancing module is configured to: when the cell to be equalized, the reference signal power transmitted by the base station corresponding to the to-be-equalized cell is increased by a predetermined value for each of the to-be-equalized cells;
- the cluster controller is configured to divide the frequency bands of the managed cells into edge user frequency bands and central users according to parameters of edge users and all user parameters in each cell managed by the system, when the cell to be equalized is not present. a frequency band; the edge user frequency band is then allocated to the edge user in the managed corresponding cell, the central user frequency band is allocated to the central user in the managed corresponding cell, and the interference user is used for the edge user to perform interference management.
- the central user uses interference-based resource avoidance mechanism for interference management.
- the present invention provides an interference management method and system.
- the present invention first considers load balancing of different cells in interference management, performs load balancing for a cell that is not an overloaded cell and an adjacent cell is an overloaded cell, and reduces interference caused by unbalanced interference distribution. Difficulties in management; afterwards, for the interference characteristics of edge users and central users, the interference management is applied to the edge users by interference alignment technology, and the interference management is implemented by the central users using the interference-based resource avoidance mechanism to realize the central users and Edge users are placed in different frequency bands and different interference management strategies are adopted to effectively solve the interference problem in ultra-dense networks.
- FIG. 1 is a flow chart of an interference management method according to a preferred embodiment of the present invention.
- FIG. 2 is a flow chart of an interference management method according to another preferred embodiment of the present invention.
- An interference management method as shown in FIG. 1, the method includes the following steps:
- S1 determining, according to the load of each managed cell, whether there is a cell to be equalized in each managed cell, where the to-equalized cell is not an overloaded cell, and the neighboring cell is a cell of an overloaded cell;
- the reference signal power transmitted by the base station corresponding to the to-be-equalized cell is increased by a predetermined value; preferably, the predetermined value is the reference signal power.
- a predetermined value is the reference signal power.
- the above method preferably begins execution when the interference management period arrives.
- the above method is aimed at the interference characteristics of the edge user and the central user, and uses the interference alignment technology for the edge user to perform interference management, and the center user uses the interference-based resource avoidance mechanism for interference management, so that the central user and the edge user are respectively placed in different frequency bands.
- the strategy can effectively solve the interference problem in ultra-dense networks.
- the interference-based resource avoidance mechanism is: dividing the interference received by the central user into directional interference and high-power interference, and adjusting the center user subjected to the directional interference to the frequency band other than the interference frequency band in the cell in which it is located.
- the frequency band for the central user subject to high power interference, adjusts the frequency band in the current cell that is less affected than the interference level in the current frequency band; wherein the interference of the center frequency band of the interference frequency band exceeds the predetermined interference threshold Frequency band.
- This type of processing can realize the interference management method by using space-time-frequency joints by assigning and processing the interference type, which can effectively solve the interference problem of the ultra-dense network.
- the method can also be used in the LTE ⁇ LTE-A system.
- the method further includes the step of dividing the central user frequency band into multiple frequency bands before the interference management is performed by the center user by using an interference-based resource avoidance mechanism.
- the method further includes the following steps: determining whether each managed cell is an overloaded cell, where the overloaded cell is a cell whose load exceeds a predetermined load threshold.
- the dividing the frequency band of each managed cell into the edge user frequency band and the central user frequency band according to the parameters of the edge users in the managed cells and all the user parameters is: taking the parameters of the edge user and all the The ratio of the user parameters is used as the proportion of the edge user frequency band, and the frequency band of the corresponding user is allocated to the edge user as the edge user frequency band according to the occupancy ratio of the edge user frequency band.
- the central user frequency band is a frequency band other than the edge user frequency band in a frequency band of each managed cell.
- the parameter of the edge user includes the number of edge users in each managed cell and the amount of edge user traffic in each managed cell; the all user parameters include the number of all users in each managed cell, and are managed. All user traffic in each cell.
- system comprising a centralized manager and a cluster controller
- the centralized manager includes a load analysis module and a load balancing module
- the load analysis module is configured to determine, according to the load of each cell managed by the system, whether there is a cell to be balanced in each cell managed by the system, where the to-balanced cell is not an overloaded cell, and the neighboring cell is overloaded. a cell of a cell;
- the load balancing module is configured to: when the cell to be equalized, the reference signal power transmitted by the base station corresponding to the to-be-equalized cell is increased by a predetermined value for each of the to-be-equalized cells;
- the cluster controller is configured to divide the frequency band of each managed cell into an edge user frequency band and a central user frequency band according to parameters of edge users and all user parameters in each cell managed by the system when the cell to be equalized is not present;
- the edge user frequency band is then allocated to the managed edge user for use, the central user frequency band is allocated to the managed central user, and the edge user is subjected to interference alignment technology for interference management, and the center user is subjected to interference-based resource avoidance.
- the interference-based resource avoidance mechanism is: dividing the interference received by the central user into directional interference and high-power interference, and adjusting the center user subjected to the directional interference to the frequency band other than the interference frequency band in the cell in which it is located.
- the frequency band for the central user subject to high power interference, adjusts the frequency band in the current cell that is less affected than the interference level in the current frequency band; wherein the interference of the center frequency band of the interference frequency band exceeds the predetermined interference threshold Frequency band.
- the above system adopts a cluster-based centralized interference management architecture.
- the new architecture adds a centralized manager, which can obtain the information of each cell under its management, and is responsible for the joint management of interference of multiple cells. It is convenient for the cells to cooperate with each other to jointly manage the interference to improve the system capacity.
- the system first analyzes each of the interference management. The cell load is used to balance the load.
- the main strategy of the interference management is that the user can be divided into a central user and an edge user according to the location of the cell where the user is currently located, and the frequency domain resources are correspondingly divided into an edge frequency band and a central frequency band, and the two users are allocated in corresponding On the frequency domain resources.
- the cluster controller uses the joint coding technology of the cluster controller in the coordinated cell for interference management in the coordinated cell-interference alignment technology to eliminate interference.
- the central user adopts the interference management strategy of airspace, time domain and frequency domain joint (ie based on Interference resource avoidance mechanism).
- the centralized manager manages multiple clusters, and each cluster manages cells in multiple base stations.
- the method in this embodiment is a cluster-based interference management method, and includes the following steps:
- step 3 check whether the load of each cell and surrounding neighboring cells exceeds the threshold, mainly to judge whether the load of the own cell is light and the surrounding load is heavy. If it is, go to step 3, otherwise go to step 4.
- Band resource division which divides the total frequency band in the interference management area into a central user frequency band and an edge user frequency band, and is used for frequency resource allocation of the central user and the edge user.
- the influencing factors are the number of all edge users in the coordinated cell within the cluster, the total number of users, the demand for edge users, and the traffic of all users.
- the ratio of the edge user parameters and all the user parameters the ratio of the frequency domain resources occupied by the edge users is taken as the ratio.
- the total frequency band in the interference management area is subtracted from the frequency domain bandwidth occupied by the edge user as the bandwidth of the central user.
- the above information and the edge user information are notified to all the coordinated cells, and the cooperative processing is notified.
- Centralized control is adopted for the central users, that is, interference management is performed by using the interference-based resource avoidance mechanism, and the central user frequency band is divided into N sub-bands, and the center users are placed in different interference frequency bands according to different interference types.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
本申请涉及网络通信技术，特别涉及干扰管理方法、系统。本发明要求申请号为2015107296858，申请日为2015年10月30日，发明名称为“干扰管理方法、系统”的在先申请的优先权。The present application relates to network communication technologies, and in particular, to an interference management method and system. The present application claims priority to 2015107296858, and the filing date is October 30, 2015, the priority of the prior application entitled "Interference Management Method, System".
第五代移动通信(5G)的研发在世界范围内如火如荼地展开。在5G通信中，无线通信网络正朝着网络多元化、宽带化、综合化、智能化的方向演进。随着各种智能终端的普及，数据流量将出现井喷式的增长。未来数据业务将主要分布在室内和热点地区，这使得超密集网络成为实现未来5G的1000倍流量需求的主要手段之一。超密集网络能够改善网络覆盖，大幅度提升系统容量，并且对业务进行分流，具有更灵活的网络部署和更高效的频率复用。The development of the fifth generation of mobile communications (5G) is in full swing around the world. In 5G communication, the wireless communication network is evolving in the direction of network diversification, broadband, integration, and intelligence. With the popularity of various smart terminals, data traffic will increase spurt. Future data services will be mainly distributed indoors and hotspots, making ultra-dense networks one of the main means of achieving 1000 times the traffic demand of the future 5G. Ultra-dense networks can improve network coverage, dramatically increase system capacity, and offload traffic, with more flexible network deployment and more efficient frequency reuse.
与此同时，愈发密集的网络部署也使得网络拓扑更加复杂，由于网络和服务单元的密集特性，存在大量干扰源，与传统网络相比，具有最强干扰占比低、干扰源众多、各个干扰源造成的干扰大致相当的特点；同时，随着小站数目的增多，网络密集后，小区的重叠区域增大，邻区的干扰增大，干扰小区增多，网络动态性增高，导致干扰管理更具挑战性。传统方案中的ICIC(小区间干扰协调)和eICIC(增强的小区间干扰协调)策略已经无法完全解决密集网络部署的干扰问题。At the same time, the increasingly dense network deployment makes the network topology more complicated. Due to the dense nature of the network and service units, there are a large number of interference sources. Compared with the traditional network, it has the strongest interference ratio, many interference sources, and various The interference caused by the interference source is roughly equivalent. At the same time, as the number of small stations increases, the network overlaps, the overlapping area of the cell increases, the interference of the neighboring area increases, the number of interfering cells increases, and the network dynamics increase, resulting in interference management. More challenging. The ICIC (Inter-Cell Interference Coordination) and eICIC (Enhanced Inter-Cell Interference Coordination) strategies in the traditional scheme have been unable to completely solve the interference problem of dense network deployment.
发明内容Summary of the invention
本发明要解决的技术问题是如何为超密集网络设计更为有效、合理的干扰管理方法或系统。The technical problem to be solved by the present invention is how to design a more effective and reasonable interference management method or system for an ultra-dense network.
为了解决上述技术问题，本发明提供一种干扰管理方法，所述方法包括以下步骤：In order to solve the above technical problem, the present invention provides an interference management method, the method comprising the following steps:
根据所管理的各个小区的负载，判断所管理的各个小区中是否存在待均 衡小区，其中所述待均衡小区为自身不是超载小区，并且邻小区是超载小区的小区；Determining whether there is a waiting for each of the managed cells according to the load of each managed cell a cell in which the to-be-equalized cell is not itself an overloaded cell, and the neighboring cell is a cell of an overloaded cell;
在存在所述待均衡小区时，对于每个所述待均衡小区，将该待均衡小区对应的基站发射的参考信号功率提高预定值；When the cell to be equalized is present, the reference signal power transmitted by the base station corresponding to the cell to be equalized is increased by a predetermined value for each of the cells to be equalized;
在不存在所述待均衡小区时，根据所管理的各个小区中边缘用户的参数和所有用户参数将所管理的各个小区的频带分别划分为边缘用户频带与中心用户频带；之后将所述边缘用户频带分配给所管理的对应小区中边缘用户使用，将中心用户频带分配给所管理的对应小区中中心用户使用，并且对边缘用户采用干扰对齐技术进行干扰管理，对中心用户采用基于干扰的资源避让机制进行干扰管理。When the cell to be equalized does not exist, the frequency bands of the managed cells are respectively divided into an edge user frequency band and a central user frequency band according to the parameters of the edge users in the managed cells and all user parameters; the edge user is then The frequency band is allocated to the edge users in the managed corresponding cell, the central user frequency band is allocated to the central user in the managed corresponding cell, and the interference user is used for the edge user to perform interference management, and the interference consumption resource avoidance is adopted for the central user. Mechanism for interference management.
一种系统，所述系统包括集中管理器以及簇控制器；A system comprising a centralized manager and a cluster controller;
所述集中管理器包括负载分析模块以及负载均衡模块；The centralized manager includes a load analysis module and a load balancing module;
所述负载分析模块用于根据所述系统管理的各个小区的负载，判断所述系统管理的各个小区中是否存在待均衡小区，其中所述待均衡小区为自身不是超载小区，并且邻小区是超载小区的小区；The load analysis module is configured to determine, according to the load of each cell managed by the system, whether there is a cell to be balanced in each cell managed by the system, where the to-balanced cell is not an overloaded cell, and the neighboring cell is overloaded. a cell of a cell;
所述负载均衡模块用于在存在所述待均衡小区时，对于每个所述待均衡小区，将该待均衡小区对应的基站发射的参考信号功率提高预定值；The load balancing module is configured to: when the cell to be equalized, the reference signal power transmitted by the base station corresponding to the to-be-equalized cell is increased by a predetermined value for each of the to-be-equalized cells;
所述簇控制器用于在不存在所述待均衡小区时，根据所述系统管理的各个小区中边缘用户的参数和所有用户参数将所管理的各个小区的频带分别划分为边缘用户频带与中心用户频带；之后将所述边缘用户频带分配给所管理的对应小区中边缘用户使用，将中心用户频带分配给所管理的对应小区中中心用户使用，并且对边缘用户采用干扰对齐技术进行干扰管理，对中心用户采用基于干扰的资源避让机制进行干扰管理。The cluster controller is configured to divide the frequency bands of the managed cells into edge user frequency bands and central users according to parameters of edge users and all user parameters in each cell managed by the system, when the cell to be equalized is not present. a frequency band; the edge user frequency band is then allocated to the edge user in the managed corresponding cell, the central user frequency band is allocated to the central user in the managed corresponding cell, and the interference user is used for the edge user to perform interference management. The central user uses interference-based resource avoidance mechanism for interference management.
本发明提供了一种干扰管理方法、系统，本发明在干扰管理中首先考虑不同小区的负载均衡，对于自身不是超载小区并且邻小区是超载小区的小区进行负载均衡，降低干扰分布不均衡造成干扰管理的困难；之后，针对边缘用户和中心用户的干扰特点，对边缘用户采用干扰对齐技术进行干扰管理，对中心用户采用基于干扰的资源避让机制进行干扰管理，实现将中心用户和 边缘用户分别放置在不同频带上，同时采用不同的干扰管理策略，可以有效解决超密集网络中的干扰问题。The present invention provides an interference management method and system. The present invention first considers load balancing of different cells in interference management, performs load balancing for a cell that is not an overloaded cell and an adjacent cell is an overloaded cell, and reduces interference caused by unbalanced interference distribution. Difficulties in management; afterwards, for the interference characteristics of edge users and central users, the interference management is applied to the edge users by interference alignment technology, and the interference management is implemented by the central users using the interference-based resource avoidance mechanism to realize the central users and Edge users are placed in different frequency bands and different interference management strategies are adopted to effectively solve the interference problem in ultra-dense networks.
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.
图1为本发明的一个较佳实施例的干扰管理方法流程图；1 is a flow chart of an interference management method according to a preferred embodiment of the present invention;
图2为本发明另一个较佳实施例的干扰管理方法流程图。2 is a flow chart of an interference management method according to another preferred embodiment of the present invention.
下面结合附图和实施例对本发明作进一步详细描述。以下实施例用于说明本发明，但不能用来限制本发明的范围。The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
一种干扰管理方法，如图1所示，所述方法包括以下步骤：An interference management method, as shown in FIG. 1, the method includes the following steps:
S1、根据所管理的各个小区的负载，判断所管理的各个小区中是否存在待均衡小区，其中所述待均衡小区为自身不是超载小区，并且邻小区是超载小区的小区；S1: determining, according to the load of each managed cell, whether there is a cell to be equalized in each managed cell, where the to-equalized cell is not an overloaded cell, and the neighboring cell is a cell of an overloaded cell;
S2、在存在所述待均衡小区时，对于每个所述待均衡小区，将该待均衡小区对应的基站发射的参考信号功率提高预定值；优选地，所述预定值为所述参考信号功率的一个单位值；S2. When the cell to be equalized is present, for each of the to-balanced cells, the reference signal power transmitted by the base station corresponding to the to-be-equalized cell is increased by a predetermined value; preferably, the predetermined value is the reference signal power. One unit value;
S3、在不存在所述待均衡小区时，根据所管理的各个小区中边缘用户的参数和所有用户参数将所管理的各个小区的频带划分为边缘用户频带与中心用户频带；之后将所述边缘用户频带分配给所管理的边缘用户使用，将中心用户频带分配给所管理的中心用户使用，并且对边缘用户采用干扰对齐技术进行干扰管理，对中心用户采用基于干扰的资源避让机制进行干扰管理。S3. When there is no cell to be equalized, divide the frequency band of each managed cell into an edge user frequency band and a central user frequency band according to the parameters of the edge users in the managed cells and all user parameters; then the edge is The user frequency band is allocated to the managed edge users, the central user frequency band is allocated to the central user to be managed, and the interference user is used for the edge user to perform interference management, and the center user uses the interference-based resource avoidance mechanism for interference management.
上述方法优选地在干扰管理周期到达时开始执行。The above method preferably begins execution when the interference management period arrives.
上述方法针对边缘用户和中心用户的干扰特点，对边缘用户采用干扰对齐技术进行干扰管理，对中心用户采用基于干扰的资源避让机制进行干扰管理，实现将中心用户和边缘用户分别放置不同频带，同时采用不同的干扰管 理策略，可以有效解决超密集网络中的干扰问题。The above method is aimed at the interference characteristics of the edge user and the central user, and uses the interference alignment technology for the edge user to perform interference management, and the center user uses the interference-based resource avoidance mechanism for interference management, so that the central user and the edge user are respectively placed in different frequency bands. Using different interference tubes The strategy can effectively solve the interference problem in ultra-dense networks.
进一步地，所述基于干扰的资源避让机制为：将中心用户所受的干扰分为定向干扰和高功率干扰，对受到定向干扰的中心用户，将其调整至其所在小区内除干扰频段以外的频段，对受到高功率干扰的中心用户，将其调整当前小区内受干扰程度低于在当前频段上受干扰程度的频段；其中所述干扰频段为其上的中心用户受到的干扰超过预定干扰门限的频段。此种处理方式通过对干扰类型进行分配处理，实现利用空时频联合进行干扰管理方法，可有效解决超密集网络的干扰问题，该方法同时可以用于LTE\LTE-A系统中。优选地，所述对中心用户采用基于干扰的资源避让机制进行干扰管理之前所述方法还包括将所述中心用户频带划分为多个频段的步骤。Further, the interference-based resource avoidance mechanism is: dividing the interference received by the central user into directional interference and high-power interference, and adjusting the center user subjected to the directional interference to the frequency band other than the interference frequency band in the cell in which it is located. The frequency band, for the central user subject to high power interference, adjusts the frequency band in the current cell that is less affected than the interference level in the current frequency band; wherein the interference of the center frequency band of the interference frequency band exceeds the predetermined interference threshold Frequency band. This type of processing can realize the interference management method by using space-time-frequency joints by assigning and processing the interference type, which can effectively solve the interference problem of the ultra-dense network. The method can also be used in the LTE\LTE-A system. Preferably, the method further includes the step of dividing the central user frequency band into multiple frequency bands before the interference management is performed by the center user by using an interference-based resource avoidance mechanism.
进一步地，在判断所管理的小区中是否存在待均衡小区之前所述方法还包括以下步骤：判断所管理的各个小区是否为超载小区，其中所述超载小区为其负载超过预定负载门限的小区。Further, before determining whether there is a cell to be equalized in the managed cell, the method further includes the following steps: determining whether each managed cell is an overloaded cell, where the overloaded cell is a cell whose load exceeds a predetermined load threshold.
进一步地，所述根据所管理的各个小区中边缘用户的参数和所有用户参数将所管理的各个小区的频带划分为边缘用户频带与中心用户频带为：取所述边缘用户的参数与所述所有用户参数的比值作为所述边缘用户频带的占用比例，再根据所述边缘用户频带的占用比例在所管理的各个小区的频带中为所述边缘用户分配对应比例的频带作为所述边缘用户频带，并且所述中心用户频带为所管理的各个小区的频带中除去所述边缘用户频带之外的频带。其中，所述边缘用户的参数包括所管理的各个小区中边缘用户的数量、所管理的各个小区中边缘用户业务量；所述所有用户参数包括所管理的各个小区中所有用户的数量、所管理的各个小区中所有用户业务量。Further, the dividing the frequency band of each managed cell into the edge user frequency band and the central user frequency band according to the parameters of the edge users in the managed cells and all the user parameters is: taking the parameters of the edge user and all the The ratio of the user parameters is used as the proportion of the edge user frequency band, and the frequency band of the corresponding user is allocated to the edge user as the edge user frequency band according to the occupancy ratio of the edge user frequency band. And the central user frequency band is a frequency band other than the edge user frequency band in a frequency band of each managed cell. The parameter of the edge user includes the number of edge users in each managed cell and the amount of edge user traffic in each managed cell; the all user parameters include the number of all users in each managed cell, and are managed. All user traffic in each cell.
对应于上述方法存在一种系统，所述系统包括集中管理器以及簇控制器；There is a system corresponding to the above method, the system comprising a centralized manager and a cluster controller;
所述集中管理器包括负载分析模块以及负载均衡模块；The centralized manager includes a load analysis module and a load balancing module;
所述负载分析模块用于根据所述系统管理的各个小区的负载，判断所述系统管理的各个小区中是否存在待均衡小区，其中所述待均衡小区为自身不是超载小区，并且邻小区是超载小区的小区；The load analysis module is configured to determine, according to the load of each cell managed by the system, whether there is a cell to be balanced in each cell managed by the system, where the to-balanced cell is not an overloaded cell, and the neighboring cell is overloaded. a cell of a cell;
所述负载均衡模块用于在存在所述待均衡小区时，对于每个所述待均衡小区，将该待均衡小区对应的基站发射的参考信号功率提高预定值； The load balancing module is configured to: when the cell to be equalized, the reference signal power transmitted by the base station corresponding to the to-be-equalized cell is increased by a predetermined value for each of the to-be-equalized cells;
所述簇控制器用于在不存在所述待均衡小区时，根据述系统管理的各个小区中边缘用户的参数和所有用户参数将所管理的各个小区的频带划分为边缘用户频带与中心用户频带；之后将所述边缘用户频带分配给所管理的边缘用户使用，将中心用户频带分配给所管理的中心用户使用，并且对边缘用户采用干扰对齐技术进行干扰管理，对中心用户采用基于干扰的资源避让机制进行干扰管理。The cluster controller is configured to divide the frequency band of each managed cell into an edge user frequency band and a central user frequency band according to parameters of edge users and all user parameters in each cell managed by the system when the cell to be equalized is not present; The edge user frequency band is then allocated to the managed edge user for use, the central user frequency band is allocated to the managed central user, and the edge user is subjected to interference alignment technology for interference management, and the center user is subjected to interference-based resource avoidance. Mechanism for interference management.
进一步地，所述基于干扰的资源避让机制为：将中心用户所受的干扰分为定向干扰和高功率干扰，对受到定向干扰的中心用户，将其调整至其所在小区内除干扰频段以外的频段，对受到高功率干扰的中心用户，将其调整当前小区内受干扰程度低于在当前频段上受干扰程度的频段；其中所述干扰频段为其上的中心用户受到的干扰超过预定干扰门限的频段。Further, the interference-based resource avoidance mechanism is: dividing the interference received by the central user into directional interference and high-power interference, and adjusting the center user subjected to the directional interference to the frequency band other than the interference frequency band in the cell in which it is located. The frequency band, for the central user subject to high power interference, adjusts the frequency band in the current cell that is less affected than the interference level in the current frequency band; wherein the interference of the center frequency band of the interference frequency band exceeds the predetermined interference threshold Frequency band.
在超密集网络的干扰管理中，上述系统采用基于簇的集中式干扰管理架构，新的架构中加入集中管理器，它可以获得其管理下的各小区信息，负责多个小区的干扰联合管理，便于小区相互协作共同管理干扰提升系统容量。考虑实际系统中用户呈非均匀分布，太多的用户接入一个站点会造成负载失衡，这将严重影响热点区域的网络性能，无法满足用户的QoS需求，因此，系统在干扰管理时首先分析各小区负载，对负载进行均衡处理。在各小区相对均衡后，干扰管理主要策略为根据用户当前所处小区的位置可以分为中心用户和边缘用户，并将频域资源相应分为边缘频带和中心频带，两种用户分配在相应的频域资源上。簇控制器针对边缘用户的干扰管理采用在协作小区内由簇控制器进行联合编码技术——干扰对齐技术消除干扰；同时对中心用户采用空域、时域和频域联合的干扰管理策略(即基于干扰的资源避让机制)。其中集中管理器管理多个簇，每个簇管理多个基站内的小区。In the interference management of ultra-dense networks, the above system adopts a cluster-based centralized interference management architecture. The new architecture adds a centralized manager, which can obtain the information of each cell under its management, and is responsible for the joint management of interference of multiple cells. It is convenient for the cells to cooperate with each other to jointly manage the interference to improve the system capacity. Considering that the users in the actual system are non-uniformly distributed, too many users accessing a site will cause load imbalance, which will seriously affect the network performance of the hotspot area and fail to meet the QoS requirements of the users. Therefore, the system first analyzes each of the interference management. The cell load is used to balance the load. After the cells are relatively equalized, the main strategy of the interference management is that the user can be divided into a central user and an edge user according to the location of the cell where the user is currently located, and the frequency domain resources are correspondingly divided into an edge frequency band and a central frequency band, and the two users are allocated in corresponding On the frequency domain resources. The cluster controller uses the joint coding technology of the cluster controller in the coordinated cell for interference management in the coordinated cell-interference alignment technology to eliminate interference. At the same time, the central user adopts the interference management strategy of airspace, time domain and frequency domain joint (ie based on Interference resource avoidance mechanism). The centralized manager manages multiple clusters, and each cluster manages cells in multiple base stations.
下面结合另一个实施例对上述方法进行进一步地介绍：The above method is further described below in conjunction with another embodiment:
本实施例的方法是基于簇的干扰管理方法，包括如下步骤：The method in this embodiment is a cluster-based interference management method, and includes the following steps:
1、下行干扰管理周期是否达到，如果是，进入步骤2，否则结束。1. Whether the downlink interference management period is reached. If yes, go to step 2, otherwise end.
2、统计干扰管理区域内各个小区与周围相邻小区负载查是否超过门限值，主要为判断自身小区负载是否轻而周围负载重，如果是进入步骤3，否则进入步骤4。2. In the statistical interference management area, check whether the load of each cell and surrounding neighboring cells exceeds the threshold, mainly to judge whether the load of the own cell is light and the surrounding load is heavy. If it is, go to step 3, otherwise go to step 4.
3、进行负载均衡过程。考虑小区的负载均衡问题，采用参考信号功率 CRE偏置值的优化，对于周围负载重而自身负载轻的小区CRE增加一个单位值，以增加负载重的小区边缘用户向负载轻小区迁移，同时用户的下行发送功率不变，以保持整个小区间的干扰水平不变。3. Perform a load balancing process. Consider the load balancing problem of the cell, using reference signal power The optimization of the CRE offset value increases a unit value for the cell CRE with a heavy load and a light load, so as to increase the load of the cell edge user to the load light cell, and the downlink transmission power of the user does not change, so as to maintain the entire cell. The level of interference does not change.
4、频带资源划分，将干扰管理区域内的总频带分成中心用户频带和边缘用户频带，用于中心用户和边缘用户频域资源分配。其中影响因素为簇内协作小区内所有的边缘用户的数量，总的用户数量，边缘用户业务量需求，所有用户业务量。按照边缘用户参数与所有用户参数比值取小，作为边缘用户占用频域资源比例。干扰管理区域内的总频带减去边缘用户占用的频域带宽作为中心用户的带宽，以上信息与边缘用户信息通知给所有协作小区，告知其进行协作处理。4. Band resource division, which divides the total frequency band in the interference management area into a central user frequency band and an edge user frequency band, and is used for frequency resource allocation of the central user and the edge user. The influencing factors are the number of all edge users in the coordinated cell within the cluster, the total number of users, the demand for edge users, and the traffic of all users. According to the ratio of the edge user parameters and all the user parameters, the ratio of the frequency domain resources occupied by the edge users is taken as the ratio. The total frequency band in the interference management area is subtracted from the frequency domain bandwidth occupied by the edge user as the bandwidth of the central user. The above information and the edge user information are notified to all the coordinated cells, and the cooperative processing is notified.
5、对中心用户采用集中管控，即采用用基于干扰的资源避让机制进行干扰管理，将中心用户频带划分为N个子带，按照不同干扰类型，将中心用户放置不同干扰频带。5. Centralized control is adopted for the central users, that is, interference management is performed by using the interference-based resource avoidance mechanism, and the central user frequency band is divided into N sub-bands, and the center users are placed in different interference frequency bands according to different interference types.
6、处于协作的小区在相同频段上的对边缘用户采用干扰对齐技术的干扰管理。6. Interference management using interference alignment technology for edge users in the same frequency band in the coordinated cell.
以上实施方式仅用于说明本发明，而非对本发明的限制。尽管参照实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，对本发明的技术方案进行各种组合、修改或者等同替换，都不脱离本发明技术方案的精神和范围，均应涵盖在本发明的权利要求范围当中。 The above embodiments are merely illustrative of the invention and are not intended to limit the invention. While the invention has been described in detail herein with reference to the embodiments of the embodiments of the present invention Within the scope of the claims of the present invention.
Claims (10)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510729685.8 | 2015-10-30 | ||
| CN201510729685.8A CN106658552B (en) | 2015-10-30 | 2015-10-30 | Interference management method, system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2017071595A1 true WO2017071595A1 (en) | 2017-05-04 |
Family
ID=58629862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2016/103429 Ceased WO2017071595A1 (en) | 2015-10-30 | 2016-10-26 | Interference management method and system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106658552B (en) |
| WO (1) | WO2017071595A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113556774A (en) * | 2021-07-14 | 2021-10-26 | 中国电信股份有限公司 | Interference locating method, device, device and storage medium for mobile network |
| CN114521021A (en) * | 2020-11-20 | 2022-05-20 | 中国移动通信集团设计院有限公司 | Method, apparatus, device and storage medium for clustering disturbed cells |
| CN114786211A (en) * | 2022-06-16 | 2022-07-22 | 深圳市佳贤通信设备有限公司 | Xn interface-based 5G communication indoor subsystem internal coordination interference method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080081633A1 (en) * | 2006-10-02 | 2008-04-03 | Oteri Oghenekome F | User equipment frequency allocation methods and apparatus |
| US20100246495A1 (en) * | 2009-03-26 | 2010-09-30 | Samsung Electronics Co., Ltd. | Apparatus and method for resource allocation in mobile communication system |
| CN102378260A (en) * | 2010-08-20 | 2012-03-14 | 中国移动通信集团公司 | Mobility load balance realizing method and device |
| CN102857923A (en) * | 2011-06-29 | 2013-01-02 | 普天信息技术研究院有限公司 | Uplink interference coordination combined power control method among communities |
| CN104378763A (en) * | 2013-08-12 | 2015-02-25 | 普天信息技术有限公司 | Interference coordination method and base station |
| US20150131576A1 (en) * | 2013-11-08 | 2015-05-14 | Electronics And Telecommunications Research Institute | Method and apparatus for allocating resource in cellular communication system |
| CN104735723A (en) * | 2013-12-20 | 2015-06-24 | 普天信息技术研究院有限公司 | Load balancing method in heterogeneous network |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101674680A (en) * | 2008-09-10 | 2010-03-17 | 华为技术有限公司 | Method and device for allocating bands and base station |
| CN102857929B (en) * | 2011-06-29 | 2015-10-14 | 中国普天信息产业股份有限公司 | A kind of disturbance coordination method of sectorization identical networking communication system |
| CN104486767B (en) * | 2014-12-12 | 2017-12-08 | 重庆邮电大学 | Dynamic ABS disturbance restraining methods based on sub-clustering in isomery cellular network |
-
2015
- 2015-10-30 CN CN201510729685.8A patent/CN106658552B/en not_active Expired - Fee Related
-
2016
- 2016-10-26 WO PCT/CN2016/103429 patent/WO2017071595A1/en not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080081633A1 (en) * | 2006-10-02 | 2008-04-03 | Oteri Oghenekome F | User equipment frequency allocation methods and apparatus |
| US20100246495A1 (en) * | 2009-03-26 | 2010-09-30 | Samsung Electronics Co., Ltd. | Apparatus and method for resource allocation in mobile communication system |
| CN102378260A (en) * | 2010-08-20 | 2012-03-14 | 中国移动通信集团公司 | Mobility load balance realizing method and device |
| CN102857923A (en) * | 2011-06-29 | 2013-01-02 | 普天信息技术研究院有限公司 | Uplink interference coordination combined power control method among communities |
| CN104378763A (en) * | 2013-08-12 | 2015-02-25 | 普天信息技术有限公司 | Interference coordination method and base station |
| US20150131576A1 (en) * | 2013-11-08 | 2015-05-14 | Electronics And Telecommunications Research Institute | Method and apparatus for allocating resource in cellular communication system |
| CN104735723A (en) * | 2013-12-20 | 2015-06-24 | 普天信息技术研究院有限公司 | Load balancing method in heterogeneous network |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114521021A (en) * | 2020-11-20 | 2022-05-20 | 中国移动通信集团设计院有限公司 | Method, apparatus, device and storage medium for clustering disturbed cells |
| CN113556774A (en) * | 2021-07-14 | 2021-10-26 | 中国电信股份有限公司 | Interference locating method, device, device and storage medium for mobile network |
| CN114786211A (en) * | 2022-06-16 | 2022-07-22 | 深圳市佳贤通信设备有限公司 | Xn interface-based 5G communication indoor subsystem internal coordination interference method |
| CN114786211B (en) * | 2022-06-16 | 2022-09-27 | 深圳市佳贤通信设备有限公司 | Xn interface-based 5G communication indoor subsystem internal coordination interference method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106658552A (en) | 2017-05-10 |
| CN106658552B (en) | 2019-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10492193B2 (en) | Multi-stream data transmission method, apparatus, and system, and anchor | |
| CN104955077B (en) | A kind of heterogeneous network cell cluster-dividing method and device based on user experience speed | |
| CN104053163B (en) | A kind of network-building method based on the heterogeneous wireless network for calculating processing | |
| CN108901046A (en) | Cotasking unloading algorithm and system design scheme towards mobile edge calculations | |
| JP7607557B2 (en) | Organizer and interconnection fabric mapper for virtual wireless base stations - Patents.com | |
| CN106900011A (en) | Task discharging method between a kind of cellular basestation based on MEC | |
| CN103037377B (en) | A kind of co-channel interference coordination approach and device | |
| TWI787095B (en) | Method, device and radio access network for adjusting resources of radio access network | |
| CN103781118A (en) | Heterogeneous wireless network access control and resource distribution joint method based on multiple services | |
| CN103052113B (en) | Collaborative load balancing method of wireless access network system based on RAN (Residential Access Network) framework | |
| CN104010315B (en) | A kind of cell selecting method based on user experience quality | |
| CN103517279B (en) | The method combining dynamic radio resource distribution and mobility load balance in LTE system | |
| CN104023339B (en) | A kind of dynamic frequency multiplexing method under cloud wireless access isomery planar network architecture | |
| CN101494481B (en) | Method for coordinating interference in relay network district | |
| CN100547952C (en) | N frequency point networking method | |
| CN105025580B (en) | A kind of wireless resource allocation methods and device | |
| Wang et al. | Traffic-aware graph-based dynamic frequency reuse for heterogeneous Cloud-RAN | |
| WO2017071595A1 (en) | Interference management method and system | |
| JP2013146058A (en) | Radio communication resource management for distributed cellular system | |
| Bartelt et al. | Joint bandwidth allocation and small cell switching in heterogeneous networks | |
| Amine et al. | A many-to-many matching game in ultra-dense LTE HetNets | |
| Hajisami et al. | Cloud-CFFR: coordinated fractional frequency reuse in cloud radio access network (C-RAN) | |
| CN102572844B (en) | Method and device for distributing cell resources | |
| KR101722330B1 (en) | Method and System for QoS Priority-based Coordinated Scheduling and Hybrid Spectrum Access for Load Balancing in 3GPP LTE-A Ultra Dense Network | |
| CN106572491B (en) | Access node management method, access net management entity, equipment and access node |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16859030 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 16859030 Country of ref document: EP Kind code of ref document: A1 |