公开(公告)号：US08170132B2

公开(公告)日：2012-05-01

申请号：US12782294

申请日：2010-05-18

申请人： Xuezhi Yang ,  Wei Jiang

发明人： Xuezhi Yang ,  Wei Jiang

IPC分类号： H04B7/02

CPC分类号： H04B7/0617 ,  H04B7/0408 ,  H04B7/0434 ,  H04L1/0668

摘要： A method and apparatus for transmitting signals in a Multiple Antennas System (MAS) are disclosed. The method includes performing Alamouti coding on each group of common channel symbols to form two branches; selecting different weight vectors for different branches to perform beamforming, obtaining transmitting signals of each branch on each antenna, where beam modes corresponding to different weight vectors are uncorrelated and the peak-to-average power ratio of angle dimension of the two beam modes are lower than a preset threshold; and superimposing the transmitting signals of these two branches on each antenna, and transmitting the superimposed signals. In the present invention, the Alamouti coding is introduced, and a spatial diversity gain is generated by using the independence of two virtual channels. Thus, the performance of the MAS in full coverage is enhanced.

摘要翻译： 公开了一种用于在多天线系统（MAS）中发送信号的方法和装置。 该方法包括对每组公共信道符号执行Alamouti编码以形成两个分支; 为不同的分支选择不同的权重向量来执行波束形成，获得每个天线上每个分支的发射信号，其中对应于不同权重向量的波束模式是不相关的，并且两个波束模式的角度尺寸的峰值与平均功率比较低 超过预设阈值; 并将这两个分支的发送信号叠加在每个天线上，并发送叠加的信号。 在本发明中，引入了Alamouti编码，并且通过使用两个虚拟信道的独立性来生成空间分集增益。 因此，全面覆盖的MAS的性能得到提高。

公开(公告)号：US20110044402A1

公开(公告)日：2011-02-24

申请号：US12782294

申请日：2010-05-18

申请人： Xuezhi Yang ,  Wei Jiang

发明人： Xuezhi Yang ,  Wei Jiang

IPC分类号： H04L27/00

CPC分类号： H04B7/0617 ,  H04B7/0408 ,  H04B7/0434 ,  H04L1/0668

摘要： A method and apparatus for transmitting signals in a Multiple Antennas System (MAS) are disclosed. The method includes performing Alamouti coding on each group of common channel symbols to form two branches; selecting different weight vectors for different branches to perform beamforming, obtaining transmitting signals of each branch on each antenna, where beam modes corresponding to different weight vectors are uncorrelated and the peak-to-average power ratio of angle dimension of the two beam modes are lower than a preset threshold; and superimposing the transmitting signals of these two branches on each antenna, and transmitting the superimposed signals. In the present invention, the Alamouti coding is introduced, and a spatial diversity gain is generated by using the independence of two virtual channels. Thus, the performance of the MAS in full coverage is enhanced.

摘要翻译： 公开了一种用于在多天线系统（MAS）中发送信号的方法和装置。 该方法包括对每组公共信道符号执行Alamouti编码以形成两个分支; 为不同的分支选择不同的权重向量来执行波束形成，获得每个天线上每个分支的发射信号，其中对应于不同加权矢量的波束模式是不相关的，并且两个波束模式的角度尺寸的峰值与平均功率比较低 超过预设阈值; 并将这两个分支的发送信号叠加在每个天线上，并发送叠加的信号。 在本发明中，引入了Alamouti编码，并且通过使用两个虚拟信道的独立性来生成空间分集增益。 因此，全面覆盖的MAS的性能得到提高。

公开(公告)号：US08537785B2

公开(公告)日：2013-09-17

申请号：US12782279

申请日：2010-05-18

申请人： Xuezhi Yang ,  Wei Jiang

发明人： Xuezhi Yang ,  Wei Jiang

IPC分类号： H04J3/00 ,  H04M1/00

CPC分类号： H04B7/0615 ,  H04W72/046

摘要： A method for cell/sector coverage of a public channel through multiple antennas includes: dividing the physical resource for transmitting public channel signals in a frame into N physical resource blocks; generating N weighting vectors, where: each weighting vector comprises M weighting coefficients, M is equal to the number of antennas, and the difference of average antenna gain for N weighting vectors in different directions of a whole cell/sector is less than a preset value; selecting one of the N weighting vectors for each of the N physical resource blocks respectively, where the weighting vector varies with different physical resource blocks; and using the M weighting coefficients in the selected weighting vectors to weight the public channel signals in M antennas respectively, and transmitting the weighted public channel signals through the M antennas. In addition, an apparatus for cell/sector coverage of a public channel through multiple antennas is disclosed.

摘要翻译： 一种用于通过多个天线的公共信道的小区/扇区覆盖的方法包括：将用于将帧中的公共信道信号发送到N个物理资源块的物理资源; 产生N个加权向量，其中：每个加权向量包括M个加权系数，M等于天线数，并且整个小区/扇区的不同方向上的N个加权向量的平均天线增益差小于预设值 ; 为所述N个物理资源块中的每一个分别选择N个加权向量之一，其中所述加权向量随着不同的物理资源块而变化; 并且使用所选择的加权向量中的M个加权系数来分别对M个天线中的公共信道信号进行加权，并且通过M个天线发送加权的公共信道信号。 此外，公开了一种用于通过多个天线的公共信道的小区/扇区覆盖的装置。

公开(公告)号：US10425822B2

公开(公告)日：2019-09-24

申请号：US15108638

申请日：2014-12-18

申请人： Xuezhi Yang

发明人： Xuezhi Yang

IPC分类号： H04W4/00 ,  H04W72/12 ,  H04W16/00 ,  H04W16/02 ,  H04W24/10 ,  H04W52/04 ,  H04W72/04 ,  H04W16/10 ,  H04W16/12 ,  H04W16/30 ,  H04W16/32

摘要： Disclosed is a radio resource reuse method, a base station device, a terminal device, and a radio communication system. The system at least comprises two adjacent cells Ci (i=1, 2), using time-frequency resource, denoted as S for communication, which is divided into at least two resource units, each of the resource units being one time-frequency resource block. The method comprises: dividing the time-frequency resource S into N non-overlapping resource groups, denoted as RGn (n=1, 2, . . . , N), N being an integer larger than 1, and each of the resource groups comprising at least two of the resource units; and dividing RGn (n=1, 2, . . . , N), in cell Ci (i=1, 2), into two non-overlapping portions, of which, one portion is configured with an upper power density limit h(i)n and termed a primary sub-resource group of RGn, and the other portion is configured with an upper power density limit l(i)n and termed a secondary sub-resource group of RGn, wherein the sub-resource groups have the following relationships in terms of upper power density limit thereof: l(i)1/h(i)1

公开(公告)号：US07602761B2

公开(公告)日：2009-10-13

申请号：US10523697

申请日：2003-07-10

申请人： Zhaohui Lin ,  Xuezhi Yang ,  Wenbo Wang

发明人： Zhaohui Lin ,  Xuezhi Yang ,  Wenbo Wang

IPC分类号： H04B7/212

CPC分类号： H04W74/02 ,  H04W72/04 ,  H04W74/04

摘要： The present invention discloses a call access control (CAC) method applicable to call access during call initiation and cell switching in TDD-CDMA mobile communication system. The method comprises: counting the number of accessed subscribers in all current communication time slots of the home base station for an access request from a new subscriber, to determine channel resource occupations in different time slots; comparing the channel resource occupations in the different time slots, and then allocating idle resource units in the time slots having available channel resources and the minimum number of accessed subscribers to the subscriber sending the access request. The present invention achieves dynamic allocation of channel resources in cells and have an advantage of simple implementation and applicability.

摘要翻译： 本发明公开了一种适用于TDD-CDMA移动通信系统中的呼叫发起和小区切换期间的呼叫接入的呼叫接入控制（CAC）方法。 该方法包括：对来自新用户的接入请求的家庭基站的所有当前通信时隙中的接入用户的数量进行计数，以确定不同时隙中的信道资源占用; 比较不同时隙中的信道资源占用，然后在具有可用信道资源的时隙中分配空闲资源单元，并向发送接入请求的用户分配最小数量的接入用户。 本发明实现了小区中信道资源的动态分配，具有实现简单，适用性高的优点。

公开(公告)号：US07796567B2

公开(公告)日：2010-09-14

申请号：US11834348

申请日：2007-08-06

申请人： Xuezhi Yang

发明人： Xuezhi Yang

IPC分类号： H04J3/00

CPC分类号： H04W16/02 ,  H04W52/12 ,  H04W52/283

摘要： A method for implementing soft time reuse includes: selecting for a cell or sector at least one time slot as a primary time slot and at least another one time slot as a secondary time slot; using the primary time slot at the border of the cell or sector; setting a first transmit power threshold for the primary time slot; setting a second transmit power threshold for the secondary time slot; the primary time slot selected for the cell or sector and a primary time slot selected for another cell or sector adjacent to the cell or sector are non-overlapped, and the first transmit power threshold is higher than the second transmit power threshold. A system is also provided by the embodiments of the present invention. The system and method reduce the interference between cells or sectors effectively and improve the resource utilization.

摘要翻译： 一种用于实现软时重用的方法包括：将至少一个时隙的小区或扇区选择为主时隙，将至少另一个时隙选择为次时隙; 使用小区或扇区边界处的主时隙; 设置主时隙的第一发射功率阈值; 设置辅助时隙的第二发射功率阈值; 为小区或扇区选择的主时隙和为与小区或扇区相邻的另一小区或扇区选择的主时隙不重叠，并且第一发射功率阈值高于第二发射功率阈值。 本发明的实施例也提供了一种系统。 系统和方法有效减少了小区或部门之间的干扰，提高了资源利用率。

公开(公告)号：US08605811B2

公开(公告)日：2013-12-10

申请号：US13407054

申请日：2012-02-28

申请人： Xuezhi Yang

发明人： Xuezhi Yang

IPC分类号： H04B7/02

CPC分类号： H04B7/024 ,  H04B7/0669 ,  H04L1/0668 ,  H04L5/0023 ,  H04L25/03159 ,  H04L2001/0092 ,  H04L2025/03414 ,  H04W28/04 ,  Y02D70/168 ,  Y02D70/442 ,  Y02D70/444

摘要： A method and an apparatus for data signal transmission are disclosed. A data signal is coded through space-time-frequency coding to form k1 space-time-frequency bit streams. P of the k1 space-time-frequency bit streams are divided into Ki orthogonal components respectively, in which a modulus of an inner product of any two of the Ki orthogonal components is equal to zero or smaller than a set value. The data signal can be restored through the Ki orthogonal components, but cannot be restored though the remaining orthogonal components apart from any one non-zero orthogonal component. All orthogonal components are provided for virtual antennas of N base stations, and are mapped to Mj physical antennas of the base station for transmission.

摘要翻译： 公开了一种用于数据信号传输的方法和装置。 通过空时频编码对数据信号进行编码，形成k1空时位流。 k1空时频率比特流的P分别被分成Ki个正交分量，其中任意两个Ki正交分量的内积的模数等于零或小于设定值。 可以通过Ki正交分量恢复数据信号，但是除了除了任何一个非零正交分量之外的剩余正交分量之外，不能恢复数据信号。 为N个基站的虚拟天线提供所有正交分量，并被映射到基站的Mj个物理天线进行传输。

公开(公告)号：US20070242769A1

公开(公告)日：2007-10-18

申请号：US11756473

申请日：2007-05-31

申请人： Xuezhi Yang

发明人： Xuezhi Yang

IPC分类号： H04K1/10

CPC分类号： H04W16/12 ,  H04B1/715 ,  H04B2001/7154 ,  H04L5/023 ,  H04W16/02 ,  H04W52/16 ,  H04W52/343

摘要： The embodiments of the present invention disclose a method, system and apparatus for implementing soft frequency reuse in a wireless communication system, the method includes: selecting for a cell or sector at least one carrier as a primary carrier and at least one carrier as a secondary carrier, the primary carrier and the secondary carrier are different; setting a first transmit power threshold for the primary carrier; setting a second transmit power threshold for the secondary carrier; the primary carrier selected for the cell or sector and a primary carrier selected for another cell or sector adjacent to the cell or sector are non-overlapped, and the first transmit power threshold is higher than the second transmit power threshold. The method, system and apparatus may reduce inter-cell interference and fully utilize frequency resources.

摘要翻译： 本发明的实施例公开了一种用于在无线通信系统中实现软频率重用的方法，系统和装置，所述方法包括：为小区或扇区选择至少一个载波作为主载波，以及至少一个载波作为次要 载波，主载波和辅载波不同; 为主载波设置第一发射功率阈值; 为所述辅助载波设置第二发射功率阈值; 为小区或扇区选择的主载波和为与小区或扇区相邻的另一小区或扇区选择的主载波是非重叠的，并且第一发射功率阈值高于第二发射功率阈值。 该方法，系统和装置可以减少小区间干扰并充分利用频率资源。

公开(公告)号：US20060105773A1

公开(公告)日：2006-05-18

申请号：US10523697

申请日：2003-07-10

申请人： Zhaohui Lin ,  Xuezhi Yang ,  Wenbo Wang

发明人： Zhaohui Lin ,  Xuezhi Yang ,  Wenbo Wang

IPC分类号： H04Q7/20

CPC分类号： H04W74/02 ,  H04W72/04 ,  H04W74/04

摘要： The present invention discloses a call access control (CAC) method applicable to call access during call initiation and cell switching in TDD-CDMA mobile communication system. The method comprises: counting the number of accessed subscribers in all current communication time slots of the home base station for an access request from a new subscriber, to determine channel resource occupations in different time slots; comparing the channel resource occupations in the different time slots, and then allocating idle resource units in the time slots having available channel resources and the minimum number of accessed subscribers to the subscriber sending the access request. The present invention achieves dynamic allocation of channel resources in cells and have an advantage of simple implementation and applicability.