公开(公告)号：US08160048B2

公开(公告)日：2012-04-17

申请号：US11583651

申请日：2006-10-18

申请人： Lei Du ,  Yong Bai ,  Lan Chen ,  Hidetoshi Kayama

发明人： Lei Du ,  Yong Bai ,  Lan Chen ,  Hidetoshi Kayama

IPC分类号： H04J3/00 ,  H04W40/00 ,  H04B7/00

CPC分类号： H04W48/14 ,  H04W48/12 ,  H04W48/16 ,  H04W84/042 ,  H04W84/12 ,  H04W88/04 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22

摘要： A method for accessing a hybrid network including a wide area network and a distributed network, a gateway apparatus, a wireless terminal and a gateway communication system are disclosed for reducing the power consumption of the wireless terminal which is an access gateway. The method comprises: sensing by a gateway apparatus a relay request slot on a downlink common control channel of the wide area network; transmitting by a wireless terminal a relay request signal requesting to relay a data packet to be transmitted, in the relay request slot on the downlink common control channel; and if the relay request signal from the wireless terminal is sensed in the relay request slot, establishing by the gateway apparatus a connection with the wireless terminal in a distributed network environment. As such, the gateway apparatus accesses the wireless distributed network only when the surrounding wireless terminals require data relay, without sensing signals on both networks simultaneously, in order to reduce the power consumption.

摘要翻译： 公开了一种用于访问包括广域网和分布式网络的混合网络的方法，网关装置，无线终端和网关通信系统，用于降低作为接入网关的无线终端的功耗。 该方法包括：通过网关设备对广域网的下行公用控制信道上的中继请求时隙进行检测; 由无线终端在下行公用控制信道的中继请求时隙中发送请求中继要发送的数据包的中继请求信号; 并且如果在所述中继请求时隙中感测到来自所述无线终端的所述中继请求信号，则由所述网关装置在分布式网络环境中建立与所述无线终端的连接。 因此，只有当周围的无线终端需要数据中继时，网关装置才能访问无线分布式网络，而不会同时检测两个网络上的信号，以减少功耗。

公开(公告)号：US08107439B2

公开(公告)日：2012-01-31

申请号：US12396253

申请日：2009-03-02

申请人： Yuan Yan ,  Anxin Li ,  Xiangming Li ,  Hidetoshi Kayama

发明人： Yuan Yan ,  Anxin Li ,  Xiangming Li ,  Hidetoshi Kayama

IPC分类号： H04W4/00

CPC分类号： H04W72/085 ,  H04W4/08 ,  H04W24/10 ,  H04W48/16

摘要： The present invention discloses a method and apparatus of physical resource allocation as well as a method of data receiving and a receiving end in a wireless communication system. The method of physical resource allocation includes: detecting a pilot signal sent by each user within a designated range; obtaining received power of the pilot signal sent by each user; scheduling each user within the designated range to obtain a user group including at least one user according to the received power; and allocating a same physical resource to each user of the user group. According to the method and the apparatus, it is possible to reuse a physical resource and sequentially decode data packets corresponding to users in a user group occupying the same physical resource according to the Capture Effect and interference cancellation technology, thereby improving the spectrum efficiency and throughput of uplink or downlink greatly.

摘要翻译： 本发明公开了一种物理资源分配的方法和装置，以及无线通信系统中的数据接收和接收端的方法。 物理资源分配方法包括：检测每个用户在指定范围内发送的导频信号; 获取每个用户发送的导频信号的接收功率; 在指定范围内调度每个用户以根据所接收的功率获得包括至少一个用户的用户组; 并向用户组的每个用户分配相同的物理资源。 根据该方法和装置，可以根据捕获效应和干扰消除技术重新使用物理资源并对占用相同物理资源的用户组中的用户对应的数据分组进行顺序解码，从而提高频谱效率和吞吐量 的上行链路或下行链路。

公开(公告)号：US07965785B2

公开(公告)日：2011-06-21

申请号：US11930600

申请日：2007-10-31

申请人： Anxin Li ,  Xiangming Li ,  Hidetoshi Kayama ,  Ismail Guvenc ,  Moo Ryong Jeong

发明人： Anxin Li ,  Xiangming Li ,  Hidetoshi Kayama ,  Ismail Guvenc ,  Moo Ryong Jeong

IPC分类号： H04B7/02

CPC分类号： H04B7/0413 ,  H04B7/024 ,  H04B7/026 ,  H04B7/0404 ,  H04B7/0456 ,  H04B7/0602 ,  H04B7/0669 ,  H04B7/0678 ,  H04B7/0689 ,  H04B7/0691 ,  H04B7/0697 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0048 ,  H04L25/0206 ,  H04L2025/03426 ,  H04W8/24 ,  H04W72/0406

摘要： A method is provided for MIMO uplink communications between a base station and a wireless station with more than two antennae. The method includes: (a) negotiating between the base station and the wireless station uplink MIMO/cooperative MIMO capabilities, using a message exchange protocol in which a message exchanged comprises a field for specifying uplink MIMO/cooperative MIMO capabilities; (b) the base station receiving a request from the wireless station for data transmission; (c) the base station sending the wireless station an allocated resource and an uplink MIMO/cooperative MIMO method for uplink transmission; (e) the wireless station mapping data symbols to the allocated resource with proper pilot pattern; and (f) the base station detecting the data symbols from the channel.

摘要翻译： 提供了一种用于具有两个以上天线的基站与无线站之间的MIMO上行链路通信的方法。 该方法包括：（a）使用消息交换协议在基站和无线站上行MIMO /协作MIMO能力之间进行协商，其中交换的消息包括用于指定上行MIMO /协作MIMO能力的字段; （b）基站接收来自无线站的数据传输请求; （c）基站向无线站发送分配的资源和用于上行链路传输的上行MIMO /协作MIMO方法; （e）无线站将数据符号以适当的导频模式映射到所分配的资源; 和（f）基站从信道检测数据符号。

公开(公告)号：US20100246524A1

公开(公告)日：2010-09-30

申请号：US12748236

申请日：2010-03-26

申请人： Xiaolin Hou ,  Zhan Zhang ,  Hidetoshi Kayama

发明人： Xiaolin Hou ,  Zhan Zhang ,  Hidetoshi Kayama

IPC分类号： H04W72/12 ,  H04L27/28

CPC分类号： H04B7/024 ,  H04B7/063

摘要： Embodiments of the present invention include a method, system and transmitter for adaptive coordinated transmission in wireless communications. The method includes: determining more than one transmitter for performing coordinated transmission, configuring one of the more than one transmitter to be a serving transmitter with others of the more than one transmitter being cooperating transmitters, and determining more than one receiver; determining, by a cooperating transmitter, a cooperation mode according to measured signal parameters of the more than one receiver after receiving a cooperation request from the serving transmitter, and providing the cooperation mode to the serving transmitter; generating, by each of the more than one transmitter, a transmit signal corresponding to the more than one receiver according to the cooperation mode determined, and transmitting the transmit signal to each of the more than one receiver. The method, system and transmitter of the present invention increase spectrum efficiency for cell edge users as much as possible while having relatively low implementation complexity.

摘要翻译： 本发明的实施例包括用于无线通信中的自适应协调传输的方法，系统和发射机。 该方法包括：确定用于执行协调传输的多于一个发射机，将所述多于一个的发射机中的一个配置为多个发射机，并且确定多于一个的接收机; 在从所述服务发射机接收到合作请求之后，根据所述多于一个接收机的测量信号参数，由协作发射机确定协作模式，并向所述服务发射机提供所述协作模式; 根据所确定的协作模式，生成与所述多于一个发射机相对应的发射信号，并将所述发射信号发送到所述多个接收机中的每一个。 本发明的方法，系统和发射机尽可能地增加小区边缘用户的频谱效率，同时具有较低的实现复杂度。

公开(公告)号：US07634272B2

公开(公告)日：2009-12-15

申请号：US10686609

申请日：2003-10-17

申请人： Takeshi Yamashita ,  Hideo Matsuki ,  Jyunichirou Hagiwara ,  Hidetoshi Kayama ,  Narumi Umeda

发明人： Takeshi Yamashita ,  Hideo Matsuki ,  Jyunichirou Hagiwara ,  Hidetoshi Kayama ,  Narumi Umeda

IPC分类号： H04W36/00

CPC分类号： H04W36/04 ,  H04W36/30

摘要： In mobile communication system 100 according to the present invention, mobile station 1 is camped on cell C10 established by base station B10. In the cell C10, there exist indoor cells C11-C13 and outdoor cells C21, C22 as neighboring cells. Mobile station 1 measures received levels of cells C10-C13, C21, C22 and determines cell types of the respective cells, i.e., whether each cell is an indoor cell or not, based on broadcast information M1. Mobile station 1 selects a cell as a reselection target on the basis of the received levels and cell types.

摘要翻译： 在根据本发明的移动通信系统100中，移动台1驻留在由基站B10建立的小区C10上。 在单元格C10中，存在室内单元C11-C13和室外单元C21，C22作为相邻单元。 移动站1基于广播信息M1来测量小区C10-C13，C21，C22的接收电平，并且确定各个小区的小区类型，即每个小区是否是室内小区。 移动站1基于所接收的等级和小区类型来选择小区作为重选目标。

公开(公告)号：US20090073931A1

公开(公告)日：2009-03-19

申请号：US12273344

申请日：2008-11-18

申请人： Lan CHEN ,  Daisuke Kitazawa ,  Hidetoshi Kayama ,  Narumi Umeda

发明人： Lan CHEN ,  Daisuke Kitazawa ,  Hidetoshi Kayama ,  Narumi Umeda

IPC分类号： H04W28/16

CPC分类号： H04W52/22 ,  H04W16/14 ,  H04W52/221 ,  H04W52/223 ,  H04W52/225 ,  H04W52/226 ,  H04W52/228 ,  H04W52/24 ,  H04W52/243 ,  H04W52/265 ,  H04W52/286 ,  H04W52/367

摘要： The present invention improves a system capacity and satisfaction rate with a quality of service in packet communications performed through a radio link established between a transmitting station and a receiving station by dynamically limiting transmission power of packets in the transmitting station and keeping an increase of an interference level in the receiving station, which belongs to another cell, within a TPC margin. The present invention includes a resource allocator 115 configured to set transmission power of packets in a next step period, by use of transmission power of packets in a preceding step period (slot) and an interference level of the receiving station.

公开(公告)号：US07471927B2

公开(公告)日：2008-12-30

申请号：US10515628

申请日：2003-06-06

申请人： Lan Chen ,  Daisuke Kitazawa ,  Hidetoshi Kayama ,  Narumi Umeda

发明人： Lan Chen ,  Daisuke Kitazawa ,  Hidetoshi Kayama ,  Narumi Umeda

IPC分类号： H04B1/04 ,  H04B7/00 ,  H04Q7/20

CPC分类号： H04W52/22 ,  H04W16/14 ,  H04W52/221 ,  H04W52/223 ,  H04W52/225 ,  H04W52/226 ,  H04W52/228 ,  H04W52/24 ,  H04W52/243 ,  H04W52/265 ,  H04W52/286 ,  H04W52/367

摘要： A system is provided in which capacity and satisfaction rate with a quality of service in packet communications performed through a radio link established between a transmitting station and a receiving station is improved by dynamically limiting transmission power of packets in the transmitting station and keeping an increase of an interference level in the receiving station, which belongs to another cell, within a TPC margin. The present invention includes a resource allocator configured to set transmission power of packets in a next step period, by use of transmission power of packets in a preceding step period (slot) and an interference level of the receiving station.

摘要翻译： 提供一种系统，其中通过动态地限制发送站中的分组的发送功率并且保持增加的能力来提高通过在发送站和接收站之间建立的无线电链路执行的分组通信中的服务质量的容量和满足率 属于另一小区的接收站中的干扰电平在TPC边缘内。 本发明包括：资源分配器，被配置为通过使用前一步骤周期（时隙）中的分组的发送功率和接收站的干扰电平，来设置下一个步骤中的分组的发送功率。

公开(公告)号：US20070291640A1

公开(公告)日：2007-12-20

申请号：US11648349

申请日：2006-12-28

申请人： Zhan Zhang ,  Hidetoshi Kayama

发明人： Zhan Zhang ,  Hidetoshi Kayama

IPC分类号： H04J11/00

CPC分类号： H04L5/006 ,  H04L1/0606 ,  H04L5/0023 ,  H04L5/0025 ,  H04L5/0044

摘要： Embodiments of the present invention include a system and method of dynamic space-frequency-division multiple-access for the uplink from terminals to a base-station. The system includes a base-station and multiple terminals. According to different spatial mapping modes, the base-station performs an optimization computation using an optimization function in order to obtain control information for controlling terminals; after receiving the control information, the user terminal controls the transmitting mode using this control information. The method includes the following operations: at the base-station, performing an optimization computation using an optimization function according to different spatial mapping modes respectively, in order to obtain control information for controlling terminals; at the user terminal, controlling a transmitting mode using the control information after receiving the above control information. An embodiment of the present invention can achieve a higher system capacity by balancing resource allocation among different users in a domain of transmission power, bandwidth and spatial channels.

摘要翻译： 本发明的实施例包括从终端到基站的上行链路的动态空分多址的系统和方法。 该系统包括一个基站和多个终端。 根据不同的空间映射模式，基站使用优化函数进行优化计算，以获得控制终端的控制信息; 在接收到控制信息之后，用户终端使用该控制信息来控制发送模式。 该方法包括以下操作：在基站，分别根据不同的空间映射模式，使用优化函数进行优化计算，以获得控制终端的控制信息; 在用户终端，在接收到上述控制信息之后，使用控制信息控制发送模式。 本发明的实施例可以通过平衡发射功率，带宽和空间信道的不同用户之间的资源分配来实现更高的系统容量。

公开(公告)号：US20070206699A1

公开(公告)日：2007-09-06

申请号：US11713230

申请日：2007-03-01

申请人： Chunlin Yan ,  Zhan Zhang ,  Hidetoshi Kayama

发明人： Chunlin Yan ,  Zhan Zhang ,  Hidetoshi Kayama

IPC分类号： H04L1/02

CPC分类号： H04L1/0009 ,  H04L1/0003 ,  H04L1/0016 ,  H04L1/0026 ,  H04L1/0637

摘要： Embodiments of the present invention provides an adaptive space-time coding and modulation method and a transmitter. In one embodiment, the method includes: obtaining a curve corresponding to a modulation mode, a channel coding rate, a coding mode of a space-time code, a parameter indicating signal transmission quality and SNR by simulating or measuring at transmit-side and making a table with correspondences between the SNR, the modulation mode and the coding mode of the space-time code according to a SNR range corresponding to a predefined signal transmission quality. Higher frequency spectrum efficiency can be achieved with the quality of service guaranteed.

摘要翻译： 本发明的实施例提供一种自适应时空编码和调制方法以及发射机。 在一个实施例中，该方法包括：通过在发送侧进行模拟或测量，获得对应于调制模式，信道编码率，空时码的编码模式，指示信号传输质量和SNR的参数的曲线， 根据与预定义的信号传输质量相对应的SNR范围的空时码的SNR，调制模式和编码模式之间的对应关系的表。 随着服务质量的保证，可以实现更高的频谱效率。

公开(公告)号：US20060269007A1

公开(公告)日：2006-11-30

申请号：US11439933

申请日：2006-05-23

申请人： Zhongsham Zhang ,  Hidetoshi Kayama

发明人： Zhongsham Zhang ,  Hidetoshi Kayama

IPC分类号： H04K1/10

CPC分类号： H04L27/2613 ,  H04B7/2675 ,  H04B7/2678 ,  H04L27/2657 ,  H04L27/2662

摘要： A method for generating a cyclic training sequence and a communication method and system using the cyclic training sequence are disclosed. The cyclic training sequence includes a first training symbol and a second training symbol sequentially, the first training symbol including a first CP and a first information block sequentially and the second training symbol including a second CP and a second information block sequentially, and the method for generating a cyclic training sequence is characterized in that the method comprises the following steps: the first step, generating randomly the first information block with the length N, wherein N is a natural number; the second step, copying the last L samples of the first information block to the beginning of the block as the first CP, wherein L is a natural number less than N; the third step, generating the second information block with the length N by the first information block of the first training symbol in a circle manner in which the last d samples of the first information block are shifted to the position before the rest (N−d) samples and the N samples thus rearranged forms the second information block, wherein the corresponding relation between the first and second information blocks is the structure characteristic of the cyclic training sequence, and d is 0 or any natural number less than N; and the fourth step, copying the last L samples of the second information block to the beginning of the block as the second CP to form the integrated cyclic training sequence. The method and system can realize high precise downlink synchronization and reduce the interference and distortion between different users because of the overlap of multi-user training sequence in order to guarantee that every user can have stable and reliable uplink synchronization.

摘要翻译： 公开了一种生成循环训练序列的方法以及使用循环训练序列的通信方法和系统。 所述循环训练序列依次包括第一训练符号和第二训练符号，所述第一训练符号依次包括第一CP和第一信息块，所述第二训练符号依次包括第二CP和第二信息块，以及所述方法 生成循环训练序列的特征在于该方法包括以下步骤：第一步，随机生成长度为N的第一信息块，其中N是自然数; 第二步骤，将第一信息块的最后L个样本复制到块的开头作为第一个CP，其中L是小于N的自然数; 第三步骤，以第一信息块的最后d个样本被移位到休息（Nd）样本之前的位置，以圆圈方式生成具有第一训练符号的第一信息块的具有长度N的第二信息块 并且因此重新排列的N个样本形成第二信息块，其中第一和第二信息块之间的对应关系是循环训练序列的结构特征，d是0或小于N的任何自然数; 并且第四步骤，将第二信息块的最后L个样本复制到块的开头作为第二CP，以形成综合的循环训练序列。 该方法和系统由于多用户训练序列的重叠，可以实现高精度的下行同步，减少不同用户之间的干扰和失真，以保证每个用户可以具有稳定可靠的上行同步。