公开(公告)号：US20100214997A1

公开(公告)日：2010-08-26

申请号：US12393820

申请日：2009-02-26

申请人： Zhifeng Tao ,  Weihuang Fu ,  Jinyun Zhang

发明人： Zhifeng Tao ,  Weihuang Fu ,  Jinyun Zhang

IPC分类号： H04W72/04 ,  H04W16/02

CPC分类号： H04W16/12 ,  H04W72/082 ,  H04W72/085

摘要： A method allocates resource in an Orthogonal Frequency-Division Multiple Access (OFDMA) network, including a set of Base Stations (BSs) and a set of Mobile Stations (MSs) for each BS. OFDMA frame are constructed as multiple resource blocks, and each resource block contains symbols transmitted on different subcarriers. A cluster is formed from adjacent sectors of different neighboring cells to jointly optimize the resource allocation in multiple frames, and three non-overlap zones are sequentially identified in cluster: cell center zone, cell edge zone, and cluster corner zone. Resource allocation includes intra-cluster proportional fair scheduling and inter-cluster interference mitigation. Intra-cluster scheduling further includes resource allocation for cell center zone and resource allocation for cell edge zone.

摘要翻译： 一种方法在正交频分多址（OFDMA）网络中分配资源，包括一组基站（BS）和一组用于每个BS的移动站（MS）。 OFDMA帧被构造为多个资源块，每个资源块包含在不同子载波上发送的符号。 从不同相邻小区的相邻扇区形成一个簇，共同优化多个帧中的资源分配，并在簇：小区中心区域，小区边缘区域和群集角区域中顺序识别出三个非重叠区域。 资源分配包括群内比例公平调度和集群间干扰减轻。 集群内调度还包括用于小区中心区的资源分配和小区边缘区域的资源分配。

公开(公告)号：US08175035B2

公开(公告)日：2012-05-08

申请号：US12263236

申请日：2008-10-31

申请人： Zhifeng Tao ,  Jinyun Zhang ,  Weihuang Fu

发明人： Zhifeng Tao ,  Jinyun Zhang ,  Weihuang Fu

IPC分类号： H04W4/00

CPC分类号： H04W16/02 ,  H04W16/30 ,  H04W52/243 ,  H04W52/283 ,  H04W52/343 ,  H04W52/346 ,  H04W72/0453

摘要： A method allocates resources in an orthogonal frequency-division multiple access (OFDMA) network including a set of base stations (BSs), and a set of mobile stations (MSs) for each BS. Each cell includes a center and edge zone. A node weighted constraint graph is constructed for the network. Maximal independent sets in the graph are searched as sub-channels are allocated to the MSs in edge zones. Remaining bandwidth is allocated to the MSs in the center zones. Power is assigned to the sub-channels so that inter-cell interference is minimized and traffic load is maximized.

摘要翻译： 一种方法在包括一组基站（BS）的正交频分多址（OFDMA）网络和每个BS的一组移动台（MS）中分配资源。 每个单元格包括一个中心和边缘区域。 为网络构建节点加权约束图。 当边缘区域中的MS分配子信道时，搜索图中的最大独立集合。 剩余带宽被分配给中心区域中的MS。 功率被分配给子信道，使得小区间干扰最小化并且业务负载最大化。

公开(公告)号：US08144657B2

公开(公告)日：2012-03-27

申请号：US12393820

申请日：2009-02-26

申请人： Zhifeng Tao ,  Weihuang Fu ,  Jinyun Zhang

发明人： Zhifeng Tao ,  Weihuang Fu ,  Jinyun Zhang

IPC分类号： H04Q7/00

CPC分类号： H04W16/12 ,  H04W72/082 ,  H04W72/085

摘要： A method allocates resource in an Orthogonal Frequency-Division Multiple Access (OFDMA) network, including a set of Base Stations (BSs) and a set of Mobile Stations (MSs) for each BS. OFDMA frame are constructed as multiple resource blocks, and each resource block contains symbols transmitted on different subcarriers. A cluster is formed from adjacent sectors of different neighboring cells to jointly optimize the resource allocation in multiple frames, and three non-overlap zones are sequentially identified in cluster: cell center zone, cell edge zone, and cluster corner zone. Resource allocation includes intra-cluster proportional fair scheduling and inter-cluster interference mitigation. Intra-cluster scheduling further includes resource allocation for cell center zone and resource allocation for cell edge zone.

摘要翻译： 一种方法在正交频分多址（OFDMA）网络中分配资源，包括一组基站（BS）和一组用于每个BS的移动站（MS）。 OFDMA帧被构造为多个资源块，每个资源块包含在不同子载波上发送的符号。 从不同相邻小区的相邻扇区形成一个簇，共同优化多个帧中的资源分配，并在簇：小区中心区域，小区边缘区域和群集角区域中顺序识别出三个非重叠区域。 资源分配包括群内比例公平调度和集群间干扰减轻。 集群内调度还包括用于小区中心区的资源分配和小区边缘区域的资源分配。

公开(公告)号：US20100110996A1

公开(公告)日：2010-05-06

申请号：US12263236

申请日：2008-10-31

申请人： Zhifeng Tao ,  Jinyun Zhang ,  Weihuang Fu

发明人： Zhifeng Tao ,  Jinyun Zhang ,  Weihuang Fu

IPC分类号： H04W4/00

CPC分类号： H04W16/02 ,  H04W16/30 ,  H04W52/243 ,  H04W52/283 ,  H04W52/343 ,  H04W52/346 ,  H04W72/0453

摘要： A method allocates resources in an orthogonal frequency-division multiple access (OFDMA) network including a set of base stations (BSs), and a set of mobile stations (MSs) for each BS. Each cell includes a center and edge zone. A node weighted constraint graph is constructed for the network. Maximal independent sets in the graph are searched as sub-channels are allocated to the MSs in edge zones. Remaining bandwidth is allocated to the MSs in the center zones. Power is assigned to the sub-channels so that inter-cell interference is minimized and traffic load is maximized.

摘要翻译： 一种方法在包括一组基站（BS）的正交频分多址（OFDMA）网络和每个BS的一组移动台（MS）中分配资源。 每个单元格包括一个中心和边缘区域。 为网络构建节点加权约束图。 当边缘区域中的MS分配子信道时，搜索图中的最大独立集合。 剩余带宽被分配给中心区域中的MS。 功率被分配给子信道，使得小区间干扰最小化并且业务负载最大化。