CN109861803A - Method and device for wireless resource management in cellular network - Google Patents
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Abstract
本发明属于一种蜂窝网络中无线资源管理方法,包括以下步骤:步骤1:初始化Z个RC三维资源块的基本参数,基本参数包括时隙、带宽、功率载波宽度以及RC三维资源块的分配矩阵C[:,m,n],n≤Z;步骤2:将S个用户设备按信道增益信息的大小由小到大进行编号排序,生成用户序列;步骤3:按照用户序列的顺序将系统中的Z个RC三维资源块依次分配给相应的用户设备;步骤4:根据不同用户设备的QOS的要求,从功率轴顶层开始依次对每个RC三维资源块的功率进行调整。本发明无线资源管理方法在传统的时频资源块概念引入了功率域,并利用用户设备信道的增益信息,使时频资源块在同一个频段里可以被不同的用户设备同时高效利用。
The invention belongs to a wireless resource management method in a cellular network, comprising the following steps: Step 1: Initialize basic parameters of Z RC three-dimensional resource blocks, the basic parameters include time slot, bandwidth, power carrier width and an allocation matrix of the RC three-dimensional resource blocks C[:, m, n], n≤Z; Step 2: Sort the S user equipments according to the size of the channel gain information from small to large, and generate a user sequence; Step 3: According to the order of the user sequence The Z RC 3D resource blocks are sequentially allocated to the corresponding user equipments; Step 4: According to the QOS requirements of different user equipments, the power of each RC 3D resource block is adjusted sequentially from the top level of the power axis. The wireless resource management method of the present invention introduces the power domain into the traditional time-frequency resource block concept, and utilizes the gain information of the user equipment channel, so that the time-frequency resource block can be efficiently utilized by different user equipments simultaneously in the same frequency band.
Description
技术领域technical field
本发明涉及通信技术领域,具体涉及一种蜂窝网络中无线资源管理方法和装置。The present invention relates to the field of communication technologies, in particular to a method and device for managing wireless resources in a cellular network.
背景技术Background technique
随着移动设备的激增,频谱资源变得极度匮乏,但可用频段的频谱利用率却格外的低。因此,为利用不连续或邻近的频谱资源,频谱聚合技术成为了当代通信领域中的一个关键点。With the proliferation of mobile devices, spectrum resources have become extremely scarce, but the spectrum utilization of available frequency bands is exceptionally low. Therefore, in order to utilize discontinuous or adjacent spectrum resources, spectrum aggregation technology has become a key point in the field of contemporary communications.
传统的频谱聚合中的无线资源管理方法只利用RB(时频资源块)在时域和频域对资源进行调度利用,其结构不够灵活且计算复杂度高,而一些新的技术方案虽然意识到了这一缺点,却仍然在能效方面只达到了次优效果,并且无法有效的控制传输功率和无法达到QoS(服务质量)的要求。所以,在如此严峻的现实背景下,如何于无线资源管理中实现灵活、高效、计算复杂度低的资源分配成为了亟需解决的问题。The traditional wireless resource management method in spectrum aggregation only uses RBs (time-frequency resource blocks) to schedule and utilize resources in the time and frequency domains. Its structure is not flexible and the calculation complexity is high. Although some new technical solutions realize that This shortcoming, but still only achieves the sub-optimal effect in terms of energy efficiency, and cannot effectively control the transmission power and cannot meet the QoS (Quality of Service) requirements. Therefore, under such a severe realistic background, how to realize flexible, efficient and low computational complexity resource allocation in wireless resource management has become an urgent problem to be solved.
发明内容SUMMARY OF THE INVENTION
本发明的目的在于针对上述出现的现有技术难题提供一种全新的蜂窝网络中的无线资源管理的方法和装置,并根据基础理论依据通过引入功率域的概念将现有的RB(时频资源块)拓展为RC(时域-频域-功率域三维资源块),同时利用信道增益信息使传统的RB在相同的频段下可以被不同的用户设备同时引用,从而实现更优的资源分配和频谱利用,并具有较低的计算复杂度。The purpose of the present invention is to provide a new method and device for wireless resource management in a cellular network in view of the above-mentioned existing technical problems, and according to the basic theoretical basis, by introducing the concept of power domain, the existing RB (time-frequency resource block) is extended to RC (time-frequency-power-domain three-dimensional resource block), and at the same time, the channel gain information is used to enable traditional RBs to be simultaneously referenced by different user equipments in the same frequency band, so as to achieve better resource allocation and spectrum utilization and has low computational complexity.
为达到上述目的,本发明采用了如下的技术方案:To achieve the above object, the present invention has adopted the following technical scheme:
一种蜂窝网络中无线资源管理方法,包括以下步骤:A method for wireless resource management in a cellular network, comprising the following steps:
步骤1:初始化Z个RC三维资源块的基本参数,所述基本参数包括时隙f、带宽g以及RC三维资源块的分配矩阵C[l,m,n],n≤Z;Step 1: Initialize basic parameters of Z RC three-dimensional resource blocks, the basic parameters include time slot f, bandwidth g, and an allocation matrix C[l, m, n] of the RC three-dimensional resource block, where n≤Z;
步骤2:将S个用户设备按信道增益信息的大小由小到大进行编号排序,生成用户序列;Step 2: The S user equipments are numbered and sorted according to the size of the channel gain information from small to large to generate a user sequence;
步骤3:按照所述用户序列的顺序将系统中的Z个RC三维资源块依次分配给相应的用户设备;Step 3: Allocate the Z RC three-dimensional resource blocks in the system to the corresponding user equipment in sequence according to the sequence of the user sequence;
具体的,按照用户序列的顺序,依次将沿功率轴由低到高分布的Z个RC三维资源块分配给相应的用户设备,直到将Z个RC三维资源块分配完,即C[:,m,1]=k1, C[:,m,2]=k2,…C[:,m,n]=kn...;Specifically, according to the order of the user sequence, the Z RC three-dimensional resource blocks distributed from low to high along the power axis are sequentially allocated to the corresponding user equipment until the Z RC three-dimensional resource blocks are allocated, that is, C[:, m , 1]=k 1 , C[:, m, 2]=k 2 ,...C[:,m,n]=k n ...;
步骤4:根据不同用户设备的QOS的要求,通过公式(1)从所述功率轴顶层开始依次对每个RC三维资源块的功率进行调整:Step 4: According to the QOS requirements of different user equipments, the power of each RC three-dimensional resource block is adjusted sequentially from the top layer of the power axis by formula (1):
其中,Ai,m=SiWm;且σ表示系统噪声,h表示用户设备的信道增益值,r表示用户设备的数据传输速率,Ai,m表示系数矩阵;同时,存在着功率约束,各个RC三维资源块的功率之和远小于系统的总功率,即∑PS<Pmax。in, A i,m =S i W m ; and σ represents the system noise, h represents the channel gain value of the user equipment, r represents the data transmission rate of the user equipment, and A i, m represents the coefficient matrix; at the same time, there is a power constraint, each The sum of the powers of the RC three-dimensional resource blocks is much smaller than the total power of the system, that is, ΣP S <P max .
所述的蜂窝网络中无线资源管理方法,所述步骤1中初始化RC三维资源块的具体方法为:In the wireless resource management method in the cellular network, the specific method for initializing the RC three-dimensional resource block in the step 1 is:
假设功率分配系统的时域长度为T,总带宽为B,功率域长度为P,用户设备总个数为S,令L=T/f,M=B/g,N=S,则系统大小为L×M×N;其中,L表示将时域划分的时隙个数,M表示将总带宽划分的频段个数,N表示将功率域划分的功率段个数;Assuming that the time domain length of the power distribution system is T, the total bandwidth is B, the power domain length is P, and the total number of user equipments is S, let L=T/f, M=B/g, N=S, then the system size is L×M×N; among them, L represents the number of time slots that divide the time domain, M represents the number of frequency bands that divide the total bandwidth, and N represents the number of power segments that divide the power domain;
则对于任意RC三维资源块,假设以矩阵C[l,m,n]来表示RC三维资源块的分配矩阵,初始化RC三维资源块即令C=0,l=m=n=1;其中,l表示第l个时隙,m表示第m个频段,n表示第n个功率段也表示第n个RC资源块,且1≤l≤L,1≤m≤M, 1≤n≤N。Then, for any RC three-dimensional resource block, it is assumed that the allocation matrix of the RC three-dimensional resource block is represented by a matrix C[l, m, n], and the RC three-dimensional resource block is initialized so that C=0, l=m=n=1; where, l represents the 1 th time slot, m represents the m th frequency band, n represents the n th power segment and also represents the n th RC resource block, and 1≤1≤L, 1≤m≤M, 1≤n≤N.
所述的蜂窝网络中无线资源管理方法,所述步骤2中生成用户序列的具体方法为:将S个用户设备中信道增益信息最小的用户设备的用户序号设为1,用户信道增益信息次小的用户设备的用户序号设为2,以此类推,依次对功率分配系统中所有的用户设备进行排序,即满足其中k1表示功率分配系统中信道增益信息最小的用户设备,kS表示功率分配系统中信道增益信息最大的用户设备。In the wireless resource management method in the cellular network, the specific method for generating the user sequence in step 2 is: setting the user serial number of the user equipment with the smallest channel gain information among the S user equipments as 1, and the user's channel gain information is the second smallest. The user serial number of the user equipment is set to 2, and so on, to sort all the user equipments in the power distribution system in turn, that is, to satisfy the where k 1 represents the user equipment with the smallest channel gain information in the power distribution system, and k S represents the user equipment with the largest channel gain information in the power distribution system.
所述的蜂窝网络中无线资源管理方法,所述步骤4中根据公式(1)对RC三维资源块的功率进行调整的具体方法为:In the described wireless resource management method in the cellular network, the specific method for adjusting the power of the RC three-dimensional resource block according to the formula (1) in the step 4 is:
步骤4.1:通过公式(2)计算所述用户序列中序号最大的用户设备kS对应的RC三维资源块的功率P[m,kS];Step 4.1: Calculate the power P[m, k S ] of the RC three-dimensional resource block corresponding to the user equipment k S with the largest sequence number in the user sequence by formula (2);
其中,kS表示用户序列中序号为S的用户设备,P[m,kS]表示用户设备kS调整后的功率,σ表示系统噪声,表示用户设备kS的数据传输速率,表示用户设备kS的信道增益值;Among them, k S represents the user equipment with the serial number S in the user sequence, P[m, k S ] represents the power adjusted by the user equipment k S , σ represents the system noise, represents the data transmission rate of the user equipment k S , represents the channel gain value of the user equipment k S ;
步骤4.2:通过公式(2)计算所述用户序列中序号次大的用户设备ks-1对应的RC三维资源块的功率P[m,kS-1]时;将用户设备kS所对应的RC三维资源块的功率 P[m,kS]作为噪声,则:Step 4.2: When calculating the power P [m, k S-1 ] of the RC three-dimensional resource block corresponding to the user equipment k s-1 with the second largest sequence number in the user sequence by formula (2); The power P[m, k S ] of the RC 3D resource block as noise, then:
其中,kS-1表示用户列中序号为S-1的用户设备,P[m,kS-1]表示用户设备kS-1调整后的功率,σ表示系统噪声,表示用户设备kS-1的数据传输速率,表示用户设备kS-1的信道增益值;Among them, k S-1 represents the user equipment with the serial number S-1 in the user column, P[m, k S-1 ] represents the power adjusted by the user equipment k S-1 , σ represents the system noise, represents the data transmission rate of the user equipment k S-1 , represents the channel gain value of user equipment k S-1 ;
步骤4.3:通过公式(2)计算所述用户序列中序号为S-2的用户设备kS-2对应的RC三维资源块的功率P[m,kS-2]时,将用户设备kS-1、kS对应的RC三维资源块的调整后的功率P[m,kS]、P[m,kS-1]的和作为系统噪声,则:Step 4.3: When calculating the power P[m, k S-2 ] of the RC three-dimensional resource block corresponding to the user equipment k S-2 with the sequence number S-2 in the user sequence by formula (2), the user equipment k S -1 , the sum of the adjusted powers P[m, k S ] and P[m, k S-1 ] of the RC three-dimensional resource blocks corresponding to k S is regarded as the system noise, then:
以此类推,通过公式(2)对用户序列中序号较小的用户设备对应的RC三维资源块的功率进行调整时,将用户序列中序号高于该较小序号的用户设备所对应的RC三维资源块的功率之和作为噪声加入运算,即对于任意一用户设备kS-i+1,其对应的RC三维资源块调整后的功率为P[m,kS-i+1]:By analogy, when the power of the RC 3D resource block corresponding to the user equipment with the smaller sequence number in the user sequence is adjusted by formula (2), the RC 3D resource block corresponding to the user equipment with the sequence number in the user sequence is higher than the smaller sequence number. The sum of the powers of the resource blocks is added to the operation as noise, that is, for any user equipment k S-i+1 , the adjusted power of the corresponding RC three-dimensional resource block is P[m, k S-i+1 ]:
其中,1≤i≤S。Among them, 1≤i≤S.
同时,在功率域调整过程中存在着功率约束,各个RC三维资源块的功率之和远小于系统的总功率,即∑PS<<Pmax,若∑PS>Pmax,则应该取消用户设备的资源分配。At the same time, there is a power constraint in the power domain adjustment process, and the sum of the power of each RC three-dimensional resource block is far less than the total power of the system, that is, ∑P S <<P max , if ∑ P S >P max , the user should be canceled Device resource allocation.
此时存在两种方法:公平原则和不公平原则;There are two methods at this time: the principle of fairness and the principle of unfairness;
公平原则:按照先到先分配的方法,即在对序号较小的用户设备进行功率调整时发生功率溢出,则取消当前用户设备的资源分配。Fairness principle: According to the method of first-come, first-served allocation, that is, when a power overflow occurs during power adjustment of the user equipment with a smaller serial number, the resource allocation of the current user equipment is cancelled.
不公平原则:在进行功率分配的过程中,若存在功率溢出,则取消信道衰落大的用户设备的分配。Unfairness principle: in the process of power allocation, if there is power overflow, the allocation of user equipment with large channel fading will be cancelled.
一种蜂窝网络中无线资源管理装置,包括:A wireless resource management device in a cellular network, comprising:
参数初始化模块:用于初始化RC三维资源块的基本参数;Parameter initialization module: used to initialize the basic parameters of the RC 3D resource block;
信道增益排序模块:用于根据每个用户设备的信道增益值信息,对多个用户设备进行排序,生成用户序列;Channel gain sorting module: used to sort multiple user equipments according to the channel gain value information of each user equipment to generate a user sequence;
资源块分配模块:用于按照所述用户序列的顺序将系统中多个RC三维资源块依次分配给多个用户设备;Resource block allocation module: used for sequentially allocating multiple RC three-dimensional resource blocks in the system to multiple user equipments according to the sequence of the user sequence;
功率域调整模块:用于根据不同用户设备QOS的具体要求,依次对对应的RC三维资源块的功率域进行调整。Power domain adjustment module: used to adjust the power domain of the corresponding RC three-dimensional resource block in turn according to the specific requirements of different user equipment QOS.
所述的蜂窝网络中无线资源管理装置,所述参数初始化模块、信道增益排序模块、资源块分配模块、功率域调整模块可以分布在一个装置中,也可以分布于多个装置中。In the wireless resource management device in the cellular network, the parameter initialization module, the channel gain sorting module, the resource block allocation module, and the power domain adjustment module may be distributed in one device or in multiple devices.
本发明的有益效果:Beneficial effects of the present invention:
本发明无线资源管理方法在传统的时频资源块(RB)的概念里引入了功率域,并利用用户设备信道的增益信息,使时频资源块在同一个频段里可以被不同的用户设备同时高效利用,并且提出的优化算法为凸函数,有较低的计算复杂度,满足了用户设备 QOS的基本要求,高度符合了现实需求。The wireless resource management method of the present invention introduces the power domain into the traditional concept of time-frequency resource block (RB), and utilizes the gain information of the user equipment channel, so that the time-frequency resource block can be simultaneously used by different user equipments in the same frequency band. Efficient utilization, and the proposed optimization algorithm is a convex function, which has low computational complexity, meets the basic requirements of user equipment QOS, and is highly in line with practical needs.
本发明装置通过参数初始化装置初始化RC三维资源块的基本参数,通过信道增益排序模块对多个用户设备进行排序,通过资源块分配模块根据将多个RC三维资源块依次分配给多个用户设备,通过功率域调整模块对RC三维资源块的功率域进行调整,实现了对退化信道(Degraded channel)与叠加码(Superposition code)的利用,提高了频谱资源的利用效率,突破了现有技术的瓶颈。The device of the present invention initializes the basic parameters of the RC three-dimensional resource block through the parameter initialization device, sorts multiple user equipments through the channel gain sorting module, and sequentially allocates the multiple RC three-dimensional resource blocks to multiple user equipments through the resource block allocation module according to the sequence. The power domain of the RC three-dimensional resource block is adjusted by the power domain adjustment module, which realizes the utilization of the degraded channel and the superposition code, improves the utilization efficiency of spectrum resources, and breaks through the bottleneck of the existing technology. .
以下将结合附图及实施例对本发明做进一步详细说明。The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
附图说明Description of drawings
图1是本发明的蜂窝网络中无线资源管理方法的流程图。FIG. 1 is a flowchart of a method for managing radio resources in a cellular network according to the present invention.
图2是本发明的蜂窝网络中无线资源管理装置的结构图。FIG. 2 is a structural diagram of a radio resource management apparatus in a cellular network of the present invention.
具体实施方式Detailed ways
为进一步阐述本发明达成预定目的所采取的技术手段及功效,以下结合附图及实施例对本发明的具体实施方式、结构特征及其功效,详细说明如下。In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose, the specific embodiments, structural features and effects of the present invention are described in detail below with reference to the accompanying drawings and examples.
本发明实施例针对上述出现的现有技术难题提供一种蜂窝网络中无线资源管理的方法和装置,并根据基础理论依据引入功率域以及利用用户设备的信道增益,使传统的时频资源块在相同的频段下可以被同时引用,从而实现更优的资源分配和频谱利用。The embodiments of the present invention provide a method and an apparatus for wireless resource management in a cellular network in view of the above-mentioned existing technical problems, and introduce a power domain and utilize the channel gain of the user equipment according to the basic theoretical basis, so that the traditional time-frequency resource block can be The same frequency band can be referenced at the same time, so as to achieve better resource allocation and spectrum utilization.
参见图1,为实施例提出了一种蜂窝网络中无线资源管理方法:Referring to FIG. 1, a method for wireless resource management in a cellular network is provided for an embodiment:
步骤1:初始化Z个RC三维资源块的基本参数,所述基本参数包括时隙f、带宽g、功率载波宽度以及RC三维资源块的分配矩阵C[l,m,n],1<n≤Z;Step 1: Initialize the basic parameters of the Z RC three-dimensional resource blocks, the basic parameters include time slot f, bandwidth g, power carrier width and the allocation matrix C[l, m, n] of the RC three-dimensional resource block, 1<n≤ Z;
所述步骤1中初始化RC三维资源块的具体方法为:The specific method of initializing the RC 3D resource block in the step 1 is:
假设功率分配系统的总帧长为T,总带宽为B,用户设备总个数为S,令L=T/f,M=B/g,N=S,则系统大小为L×M×N;其中,L表示将时域划分的时隙个数,M表示将频域划分的频段个数,N表示将功率域划分的功率段个数;Assuming that the total frame length of the power distribution system is T, the total bandwidth is B, and the total number of user equipments is S, let L=T/f, M=B/g, and N=S, then the system size is L×M×N ; Wherein, L represents the number of time slots that divide the time domain, M represents the number of frequency bands that divide the frequency domain, and N represents the number of power segments that divide the power domain;
则对于任意RC三维资源块,假设以矩阵C[l,m,n]来表示RC三维资源块的分配矩阵,初始化RC三维资源块即令C=0,l=m=n=1。Then, for any RC 3D resource block, it is assumed that the allocation matrix of the RC 3D resource block is represented by a matrix C[l, m, n], and the RC 3D resource block is initialized so that C=0, l=m=n=1.
其中,RC三维资源块是将原有的时间-频率资源块RB的功率轴划分为相等的若干部分所形成的时域-频域-功率域三维资源块;在本实施例中,RC三维资源块的个数等于功率域划分的个数,即N=Z,Z为大于0的整数;且在本实施例中,RC三维资源块的个数Z是根据功率分配系统中用户设备的个数为依据进行等分的,即Z=S,S为大于0 的整数。The RC three-dimensional resource block is a time-frequency-power domain three-dimensional resource block formed by dividing the power axis of the original time-frequency resource block RB into several equal parts; in this embodiment, the RC three-dimensional resource block is The number of blocks is equal to the number of power domain divisions, that is, N=Z, and Z is an integer greater than 0; and in this embodiment, the number Z of RC three-dimensional resource blocks is based on the number of user equipments in the power allocation system For equal division, ie Z=S, S is an integer greater than 0.
初始化RC三维资源块的基本参数包括帧长、带宽、功率载波宽度和资源块分配矩阵,其中,总帧长和总带宽已由功率分配系统确定。The basic parameters for initializing RC 3D resource blocks include frame length, bandwidth, power carrier width and resource block allocation matrix, wherein the total frame length and total bandwidth have been determined by the power allocation system.
下面以一个简单系统为例,对初始化RC三维资源块的基本参数的方法进行详细说明:The following takes a simple system as an example to describe the method of initializing the basic parameters of the RC 3D resource block in detail:
假设系统的总帧长为T,总带宽为B,用户设备总数为S。假设RC三维资源块的时隙为f,带宽为g,则令L=T/f,M=B/g,N=S,并假设一个矩阵C[l,m,n],1<n≤Z来表示RC三维资源块的分配矩阵,则该系统的大小为L×M×N;Assume that the total frame length of the system is T, the total bandwidth is B, and the total number of user equipments is S. Assuming that the time slot of the RC three-dimensional resource block is f and the bandwidth is g, then let L=T/f, M=B/g, N=S, and suppose a matrix C[l,m,n], 1<n≤ Z represents the allocation matrix of the RC three-dimensional resource block, then the size of the system is L×M×N;
RC三维资源块初始化,即C[l,m,n]=0,l=m=n=1;RC三维资源块初始化的实质性含义为:该RC三维资源块处于空闲状态,没有被分配给任何用户设备使用。RC 3D resource block initialization, that is, C[l, m, n]=0, l=m=n=1; the substantive meaning of RC 3D resource block initialization is: the RC 3D resource block is in an idle state and is not allocated to use by any user device.
上述的RC三维资源块的持续时间为t,表示每个RC三维资源块在时间轴上的长度;The duration of the above-mentioned RC 3D resource block is t, which represents the length of each RC 3D resource block on the time axis;
步骤2:将S个用户设备按信道增益信息的大小由小到大进行编号排序,生成用户序列;Step 2: The S user equipments are numbered and sorted according to the size of the channel gain information from small to large to generate a user sequence;
所述步骤2中生成用户序列的具体方法为:将S个用户设备中信道增益信息最小的用户设备的用户序号设为1,用户信道增益次小的用户设备的用户序号设为2,以此类推,依次对无线网络系统中所有的用户设备进行排序,即满足其中 k1表示无线网络系统中信道增益信息最小的用户设备,kS表示无线网络系统中信道增益信息最大的用户设备。The specific method for generating the user sequence in the step 2 is as follows: the user sequence number of the user equipment with the smallest channel gain information among the S user equipments is set to 1, and the user sequence number of the user equipment with the second smallest channel gain information is set to 2. By analogy, sort all the user equipments in the wireless network system in turn, that is, to satisfy where k 1 represents the user equipment with the smallest channel gain information in the wireless network system, and k S represents the user equipment with the largest channel gain information in the wireless network system.
下面以一个简单系统为例,对用户设备退化信道的增益信息的排序方法进行详细说明。Taking a simple system as an example below, the method for sorting the gain information of the degraded channel of the user equipment will be described in detail.
假设现有三个用户设备,分别为ka、kb和kc;三个用户设备的信道增益分别为h1、h2和h3;Suppose there are three existing user equipments, respectively ka , kb and kc ; the channel gains of the three user equipments are h 1 , h 2 and h 3 ;
设h1=0.2,h2=0.3,h3=0.4,因为h1<h2<h3,则令ka=k1,kb=k2,kc=k3, k1表示三个用户设备中信道增益最小的用户设备,k3表示三个用户设备中信道增益最大的用户设备。Let h 1 =0.2, h 2 =0.3, h 3 =0.4, since h 1 <h 2 <h 3 , then let ka =k 1 , k b =k 2 , k c =k 3 , k 1 represents three The user equipment with the smallest channel gain among the user equipments, k 3 represents the user equipment with the largest channel gain among the three user equipments.
步骤3:按照所述用户序列的顺序将系统中的Z个RC三维资源块依次分配给相应的用户设备;Step 3: Allocate the Z RC three-dimensional resource blocks in the system to the corresponding user equipment in sequence according to the sequence of the user sequence;
具体的,按照用户序列的顺序,依次将沿功率轴由低到高分布的Z个RC三维资源块分配给相应的用户设备,直到将Z个RC三维资源块分配完,即C[:,m,1]=k1, C[:,m,2]=k2,…C[:,m,3]=kn...;也即C[:,m,n]=kn表示将三维坐标中位置信息为 (:,m,n)的RC三维资源块分配给序号为n的用户设备。Specifically, according to the order of the user sequence, the Z RC 3D resource blocks distributed from low to high along the power axis are sequentially allocated to the corresponding user equipment until the Z RC 3D resource blocks are allocated, that is, C[:, m , 1]=k 1 , C[:, m, 2]=k 2 ,... C[:, m, 3]=k n ...; that is, C[:, m, n]=k n means that the The RC three-dimensional resource block whose position information is (:, m, n) in the three-dimensional coordinates is allocated to the user equipment whose serial number is n.
下面以一个简单系统为例,对RC的分配方法进行详细说明。The following takes a simple system as an example to describe the RC allocation method in detail.
假设现有三个用户设备,分别为ka、kb和kc;三个用户设备的信道增益分别为h1、 h2和h3;设h1=0.2,h2=0.3,h3=0.4,,因为h1<h2<h3,则令ka=k1,kb=k2, kc=k3;此时对功率轴进行三等分,并从功率轴底层开始先对用户设备k1进行RC三维资源块的分配,其RC分配矩阵C为C[:,m,1]=k1,再给k2分配RC,其用户设备的RC 分配矩阵C为C[:,m,2]=k2,接着给k3分配RC,其用户设备的RC分配矩阵C为 C[:,m,3]=k3,此时RC三维资源块的分配步骤结束。Suppose there are three existing user equipments, respectively ka , kb and kc ; the channel gains of the three user equipments are h 1 , h 2 and h 3 respectively ; let h 1 =0.2, h 2 =0.3, h 3 = 0.4, because h 1 <h 2 <h 3 , then let ka = k 1 , k b = k 2 , k c = k 3 ; at this time, divide the power axis into three equal parts, and start from the bottom layer of the power axis first. The user equipment k 1 is allocated RC three-dimensional resource blocks, and its RC allocation matrix C is C[:, m, 1]=k 1 , and then RC is allocated to k 2 , and the RC allocation matrix C of its user equipment is C[: , m, 2]=k 2 , then RC is allocated to k 3 , and the RC allocation matrix C of the user equipment is C[:, m, 3]=k 3 , and the allocation step of RC three-dimensional resource blocks ends at this time.
步骤4:根据不同用户设备的QOS的要求,通过公式(1)从所述功率轴顶层开始依次对每个RC三维资源块的功率进行调整:Step 4: According to the QOS requirements of different user equipments, the power of each RC three-dimensional resource block is adjusted sequentially from the top layer of the power axis by formula (1):
其中,且σ表示系统噪声,h表示用户设备的信道增益值,r表示用户设备的数据传输速率,Ai,m=SiWm表示系数矩阵,具体表达式如下:in, And σ represents the system noise, h represents the channel gain value of the user equipment, r represents the data transmission rate of the user equipment, A i,m =S i W m represents the coefficient matrix, and the specific expression is as follows:
同时,存在着功率约束,各个RC三维资源块的功率之和远小于系统的总功率,即∑PS<<Pmax。若∑PS>Pmax,则应该取消用户设备的资源分配。At the same time, there is a power constraint, and the sum of the power of each RC three-dimensional resource block is far less than the total power of the system, that is, ΣP S <<P max . If ΣP S >P max , the resource allocation of the user equipment should be cancelled.
此时存在两种方法:公平原则和不公平原则;There are two methods at this time: the principle of fairness and the principle of unfairness;
公平原则:按照先到先分配的方法,即在对序号较小的用户设备进行功率调整时发生功率溢出,则取消当前用户设备的资源分配。Fairness principle: According to the method of first-come, first-served allocation, that is, when a power overflow occurs during power adjustment of the user equipment with a smaller serial number, the resource allocation of the current user equipment is cancelled.
不公平原则:在进行功率分配的过程中,若存在功率溢出,则取消信道衰落大的用户设备的分配。Unfairness principle: in the process of power allocation, if there is power overflow, the allocation of user equipment with large channel fading will be cancelled.
具体的,所述步骤4中根据对每个RC三维资源块的功率进行调整的具体步骤为:Specifically, the specific steps of adjusting the power of each RC 3D resource block in step 4 are as follows:
步骤4.1:通过公式(2)计算所述用户序列中序号最大的用户设备kS对应的RC三维资源块的功率P[m,kS];Step 4.1: Calculate the power P[m, k S ] of the RC three-dimensional resource block corresponding to the user equipment k S with the largest sequence number in the user sequence by formula (2);
其中,kS表示用户序列中序号为S的用户设备,P[m,kS]表示用户设备kS调整后的功率,σ表示系统噪声,表示用户设备kS的数据传输速率,表示用户设备kS的信道增益值;Among them, k S represents the user equipment with the serial number S in the user sequence, P[m, k S ] represents the power adjusted by the user equipment k S , σ represents the system noise, represents the data transmission rate of the user equipment k S , represents the channel gain value of the user equipment k S ;
步骤4.2:通过公式(2)计算所述用户序列中序号次大的用户设备kS-1对应的RC三维资源块的功率P[m,kS-1]时;将用户设备kS所对应的RC三维资源块的功率 P[m,kS]作为噪声,则:Step 4.2: When calculating the power P[m, k S-1 ] of the RC three-dimensional resource block corresponding to the user equipment k S-1 with the second largest sequence number in the user sequence by formula (2 ) ; The power P[m, k S ] of the RC 3D resource block as noise, then:
其中,kS-1表示用户列中序号为S-1的用户设备,P[m,kS-1]表示用户设备kS-1调整后的功率,σ表示系统噪声,表示用户设备kS-1的数据传输速率,表示用户设备kS-1的信道增益值;Among them, k S-1 represents the user equipment with the serial number S-1 in the user column, P[m, k S-1 ] represents the power adjusted by the user equipment k S-1 , σ represents the system noise, represents the data transmission rate of the user equipment k S-1 , represents the channel gain value of user equipment k S-1 ;
步骤4.3:通过公式(2)计算所述用户序列中序号为S-2的用户设备kS-2对应的RC三维资源块的功率P[m,kS-2]时,将用户设备kS-1、kS对应的RC三维资源块的调整后的功率P[m,kS]、P[m,kS-1]的和作为系统噪声,则:Step 4.3: When calculating the power P[m, k S-2 ] of the RC three-dimensional resource block corresponding to the user equipment k S-2 with the sequence number S-2 in the user sequence by formula (2), the user equipment k S -1 , the sum of the adjusted powers P[m, k S ] and P[m, k S-1 ] of the RC three-dimensional resource blocks corresponding to k S is regarded as the system noise, then:
以此类推,通过公式(2)对用户序列中序号较小的用户设备对应的RC三维资源块的功率进行调整时,将用户序列中序号高于该较小序号的用户设备所对应的RC三维资源块的功率之和作为噪声加入运算,即对于任意一用户设备kS-i+1,其对应的RC三维资源块调整后的功率为P[m,kS-i+1]:By analogy, when the power of the RC 3D resource block corresponding to the user equipment with the smaller sequence number in the user sequence is adjusted by formula (2), the RC 3D resource block corresponding to the user equipment with the sequence number in the user sequence is higher than the smaller sequence number. The sum of the powers of the resource blocks is added to the operation as noise, that is, for any user equipment k S-i+1 , the adjusted power of the corresponding RC three-dimensional resource block is P[m, k S-i+1 ]:
其中,1≤i≤S;Among them, 1≤i≤S;
将上述公式(5)进行简化后得到公式(1)。Formula (1) is obtained by simplifying the above formula (5).
参见图2,基于上述管理方法,本实施例还提供一种蜂窝网络中无线资源管理装置,包括:Referring to FIG. 2, based on the above management method, this embodiment further provides a wireless resource management device in a cellular network, including:
参数初始化模块:用于初始化RC三维资源块的基本参数;Parameter initialization module: used to initialize the basic parameters of the RC 3D resource block;
信道增益排序模块:用于根据每个用户设备的信道增益值信息,对多个用户设备进行排序,生成用户序列;Channel gain sorting module: used to sort multiple user equipments according to the channel gain value information of each user equipment to generate a user sequence;
资源块分配模块:用于按照所述用户序列的顺序将系统中多个RC三维资源块依次分配给多个用户设备;Resource block allocation module: used for sequentially allocating multiple RC three-dimensional resource blocks in the system to multiple user equipments according to the sequence of the user sequence;
功率域调整模块:用于根据不同用户设备QOS的具体要求,依次对对应的RC三维资源块的功率域进行调整。Power domain adjustment module: used to adjust the power domain of the corresponding RC three-dimensional resource block in turn according to the specific requirements of different user equipment QOS.
上述的参数初始化模块、信道增益排序模块、资源块分配模块、功率域调整模块可以分布在一个装置中,也可以分布于多个装置中;The above-mentioned parameter initialization module, channel gain sorting module, resource block allocation module, and power domain adjustment module may be distributed in one device, or may be distributed in multiple devices;
上述参数初始化模块、信道增益排序模块、资源块分配模块、功率域调整模块参数初始化模块、信道增益排序模块、资源块分配模块、功率域调整模块可以合并为一个模块,也可以进一步拆分成多个子模块;The above parameter initialization module, channel gain sorting module, resource block allocation module, power domain adjustment module The parameter initialization module, channel gain sorting module, resource block allocation module, and power domain adjustment module can be combined into one module, or can be further divided into multiple modules. submodules;
上述多址接入系统上下行链路功率分配的装置可以作为一个单独的装置独立设置,也可以集成在基站和移动终端设备中。The above-mentioned apparatus for allocating uplink and downlink power in the multiple access system may be set up independently as a separate apparatus, or may be integrated in the base station and the mobile terminal equipment.
本领域技术人员可以理解实施例中装置中的各个模块可以按照实施例描述进行分布于实施例的装置中,也可以进行相应变化位于不同于实施例的一个或多个装置中。Those skilled in the art may understand that each module in the apparatus in the embodiment may be distributed in the apparatus in the embodiment according to the description of the embodiment, and may also be located in one or more apparatuses different from the embodiment by making corresponding changes.
上述蜂窝网络中无线资源管理装置可以作为一个单独的装置独立设置,也可以集成在基站和移动终端设备中。The wireless resource management device in the above-mentioned cellular network can be set up independently as a separate device, or can be integrated in the base station and the mobile terminal equipment.
本领域技术人员可以理解实施例中的装置中的模块可以按照实施例描述进行分布于实施例的装置中,也可以进行相应变化位于不同于实施例的一个或多个装置中。上述实施例的模块可以合并为一个模块,也可以进一步拆分成多个子模块。Those skilled in the art may understand that the modules in the apparatus in the embodiment may be distributed in the apparatus in the embodiment according to the description of the embodiment, and may also be located in one or more apparatuses different from the embodiment with corresponding changes. The modules in the foregoing embodiments may be combined into one module, or may be further split into multiple sub-modules.
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明,不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干简单推演或替换,都应当视为属于本发明的保护范围。The above content is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be considered that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field of the present invention, without departing from the concept of the present invention, some simple deductions or substitutions can be made, which should be regarded as belonging to the protection scope of the present invention.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090147749A1 (en) * | 2004-03-10 | 2009-06-11 | New Jersey Institute Of Technology | Combined frequency-time domain power adaptation for cdma communication systems |
| CN103907390A (en) * | 2011-09-16 | 2014-07-02 | 诺基亚通信公司 | Methods and apparatus for radio resource allocation |
| CN106714312A (en) * | 2016-12-21 | 2017-05-24 | 陕西师范大学 | Wireless network resource management method and device |
-
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090147749A1 (en) * | 2004-03-10 | 2009-06-11 | New Jersey Institute Of Technology | Combined frequency-time domain power adaptation for cdma communication systems |
| CN103907390A (en) * | 2011-09-16 | 2014-07-02 | 诺基亚通信公司 | Methods and apparatus for radio resource allocation |
| CN106714312A (en) * | 2016-12-21 | 2017-05-24 | 陕西师范大学 | Wireless network resource management method and device |
Non-Patent Citations (1)
| Title |
|---|
| WEIJIA HAN: ""Efficient 3D Resource Management for Spectrum Aggregation in Cellular Networks"" * |
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Application publication date: 20190607 |