公开(公告)号：US20130051505A1

公开(公告)日：2013-02-28

申请号：US13594573

申请日：2012-08-24

申请人： Jaspreet Singh ,  Hoang Nguyen ,  Zhouyue Pi

发明人： Jaspreet Singh ,  Hoang Nguyen ,  Zhouyue Pi

IPC分类号： H04L27/14

CPC分类号： H04L25/03949 ,  H04L5/0007 ,  H04L25/0224 ,  H04L25/0256 ,  H04L27/265

摘要： A wireless receiver is configured to perform a method of channel estimation in a multiple input multiple output (MIMO) network. The method includes despreading a vector of received samples to determine an average channel estimate for each of a plurality of multiplexed layers associated with the MIMO network, canceling inter-layer interference using the average channel estimates for the layers and obtaining a time-varying estimate for each layer, and estimating the channel using a two-dimensional minimum mean squared error (2D MMSE) technique.

摘要翻译： 无线接收机被配置为在多输入多输出（MIMO）网络中执行信道估计的方法。 该方法包括对接收样本的向量进行解扩，以确定与MIMO网络相关联的多个多路复用层中的每一个的平均信道估计，使用该层的平均信道估计来消除层间干扰，并获得对于 每层，并使用二维最小均方误差（2D MMSE）技术估计信道。

公开(公告)号：US20130028341A1

公开(公告)日：2013-01-31

申请号：US13552565

申请日：2012-07-18

申请人： Omar El Ayach ,  Sridhar Rajagopal ,  Shadi Abu-Surra ,  Zhouyue Pi

发明人： Omar El Ayach ,  Sridhar Rajagopal ,  Shadi Abu-Surra ,  Zhouyue Pi

IPC分类号： H04B7/02

CPC分类号： H04B7/0478 ,  H04B7/0456 ,  H04B7/0465 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/065 ,  H04B7/0695 ,  H04B7/088 ,  H04L25/0224

摘要： A method and apparatus enable combined baseband (BB) and radio frequency (RF) processing of signals. The method includes receiving, by a receiver, channel estimation information for a channel between a transmitter and the receiver. The method includes identifying a plurality of paths in the channel based on the channel estimation information. The method includes calculating an RF precoding matrix for precoding one or more signals to be transmitted on each of the identified paths. The RF precoding matrix includes a phase shift for each of the identified paths. Additionally, the method includes calculating a BB precoding matrix for precoding the one or more signals by a BB precoding unit associated with the transmitter.

摘要翻译： 一种方法和装置使能信号的组合基带（BB）和射频（RF）处理。 该方法包括由接收机接收用于发射机和接收机之间的信道的信道估计信息。 该方法包括基于信道估计信息识别信道中的多个路径。 该方法包括计算一个RF预编码矩阵，用于对每个所识别的路径上要发送的一个或多个信号进行预编码。 RF预编码矩阵包括针对每个所识别的路径的相移。 此外，该方法包括：计算BB预编码矩阵，用于通过与发射机相关联的BB预编码单元对一个或多个信号进行预编码。

公开(公告)号：US08358608B2

公开(公告)日：2013-01-22

申请号：US12386774

申请日：2009-04-22

申请人： Kaushik Josiam ,  Zhouyue Pi ,  Farooq Khan

发明人： Kaushik Josiam ,  Zhouyue Pi ,  Farooq Khan

IPC分类号： H04B7/14

CPC分类号： H04L1/004 ,  H04B7/15521 ,  H04L1/1819 ,  H04L2001/0097

摘要： For use in a wireless communication network, methods for encoding information bit streams at a relay station are provided. Each method includes receiving data packets from a base station and a mobile station. Each method also includes decoding the packets and re-encoding the packets. Each method further includes combining the re-encoded packets into another packet using an XOR operation, and transmitting the other packet to the base station and the mobile station.

摘要翻译： 为了在无线通信网络中使用，提供了在中继站处对信息比特流进行编码的方法。 每种方法包括从基站和移动台接收数据分组。 每个方法还包括解码分组并重新编码分组。 每个方法还包括使用XOR操作将重新编码的分组组合成另一分组，并且将另一分组发送到基站和移动台。

公开(公告)号：US08249511B2

公开(公告)日：2012-08-21

申请号：US12454539

申请日：2009-05-19

申请人： Lingjia Liu ,  Jianzhong Zhang ,  Donghee Kim ,  Zhouyue Pi

发明人： Lingjia Liu ,  Jianzhong Zhang ,  Donghee Kim ,  Zhouyue Pi

IPC分类号： H04B1/00 ,  H04B15/00 ,  H04K1/10 ,  H04L27/28

CPC分类号： H04J11/005 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0619 ,  H04B7/0639 ,  H04L1/0001

摘要： A system and method for inter-cell interference avoidance. A device capable of performing channel estimation is configured to divide a codebook into two sets. A first set of said two sets corresponds to codebook information that will cause an interference in a received signal to be less than a threshold. The device further is configured to send feedback information corresponding to the first or second set, or both. A base station is configured to select a preceding vector or matrix based, in part, on a portion of the feedback information.

摘要翻译： 一种用于小区间干扰避免的系统和方法。 能够执行信道估计的装置被配置为将码本分成两组。 所述两组的第一组对应于将导致接收信号中的干扰小于阈值的码本信息。 该设备还被配置为发送对应于第一组或第二组或两者的反馈信息。 基站被配置为部分地基于反馈信息的一部分来选择前一向量或矩阵。

公开(公告)号：US08238455B2

公开(公告)日：2012-08-07

申请号：US12314239

申请日：2008-12-05

申请人： Jianzhong Zhang ,  Zhouyue Pi ,  Farooq Khan ,  Jiannan Tsai

发明人： Jianzhong Zhang ,  Zhouyue Pi ,  Farooq Khan ,  Jiannan Tsai

IPC分类号： H04L27/28

CPC分类号： H04W52/346 ,  H04W52/143 ,  H04W52/146 ,  H04W52/16 ,  H04W52/325 ,  H04W52/343 ,  H04W52/367 ,  H04W72/042

摘要： Methods and apparatus for transmitting power setting information in a downlink Physical Downlink Shared Channel (PDSCH) in a communication system. In this communication system, a plurality of methods for calculating traffic-to-pilot ratios (T2P) are established. In addition, a mapping scheme between a plurality of overhead signals and a plurality of reference signal (RS) overhead ratios, ηRS, and the plurality of T2P calculation methods is established. A user-specific T2P ratio PB,k/PRS for certain OFDM symbols, a RS overhead ratio ηRS and a calculation method selected from the plurality of T2P calculation methods are assigned to a wireless terminal. Then, an overhead signal corresponding to both of the assigned RS overhead ratio ηRS and the assigned T2P calculation method is selected in accordance with the mapping scheme and is transmitted to the wireless terminal. In addition, the user-specific traffic-to-pilot ratio PB,k/PRS is transmitted to the wireless terminal. The wireless terminal may calculate the traffic-to-pilot ratios across different transmission antennas and different OFDM symbols in dependence upon the received traffic-to-pilot ratio PB,k/PRS, and the RS overhead ratio and the T2P calculation method indicated by the RS overhead signal.

摘要翻译： 在通信系统中的下行链路物理下行链路共享信道（PDSCH）中发送功率设定信息的方法和装置。 在该通信系统中，建立了用于计算业务导频比（T2P）的多种方法。 另外，建立了多个开销信号与多个参考信号（RS）开销比“RS”和多个T2P计算方法之间的映射方案。 对于某些OFDM符号的用户特定T2P比PB，k / PRS，RS开销比和RS以及从多个T2P计算方法中选择的计算方法被分配给无线终端。 然后，根据映射方案选择对应于所分配的RS开销比＆amp; RS和分配的T2P计算方法的开销信号，并将其发送到无线终端。 此外，将用户特定的业务导频比PB，k / PRS发送到无线终端。 无线终端可以根据接收到的业务导频比PB，k / PRS和RS开销比和T2P计算方法，计算不同发射天线和不同OFDM符号之间的业务导频比 RS开销信号。

公开(公告)号：US20120120940A1

公开(公告)日：2012-05-17

申请号：US13357209

申请日：2012-01-24

申请人： Zhouyue Pi ,  Zhigang Rong

发明人： Zhouyue Pi ,  Zhigang Rong

IPC分类号： H04W52/12 ,  H04B7/216 ,  H04W4/00

CPC分类号： H04W52/16 ,  H04W28/22 ,  H04W36/16 ,  H04W52/0216 ,  H04W52/0229 ,  H04W52/12 ,  H04W52/26 ,  H04W52/267 ,  Y02D70/00

摘要： Apparatus, and an associated method, for facilitating operation of a radio communication system that provides for multi rate data communications, such as a CDMA 2000 system that provides for 1xEV-DV communication services. A supplemental pilot, or control, signal generator embodied at a mobile station generates a supplemental pilot, or control, signal that is sent on a newly defined supplemental pilot, or control, channel. As the data rates of data communicated upon a reverse supplemental channel changes, corresponding changes are made to the power level of the reverse supplemental pilot, or control, signal.

摘要翻译： 装置和相关方法，用于促进提供多速率数据通信的无线电通信系统的操作，诸如提供1xEV-DV通信服务的CDMA 2000系统。 实施在移动站的补充导频或控制信号发生器产生在新定义的补充导频或控制信道上发送的补充导频或控制信号。 随着在反向补充信道上传送的数据的数据速率发生变化，对反向辅助导频或控制信号的功率电平进行相应的改变。

公开(公告)号：US08175610B2

公开(公告)日：2012-05-08

申请号：US10456987

申请日：2003-06-06

申请人： Zhouyue Pi ,  Lin Ma ,  Zhigang Rong

发明人： Zhouyue Pi ,  Lin Ma ,  Zhigang Rong

IPC分类号： H04W72/00

CPC分类号： H04W28/16 ,  H04W72/04 ,  H04W72/0426

摘要： Apparatus, and an associated method, for allocating radio resources in a radio communication system that provides for data communication services, e.g., reverse link communication services in which data is communicated by a mobile station to a network part of the communication system. A multi level control mechanism is provided in which a lower level radio airlink manager and an upper level radio airlink manager are used together to allocate resources to a mobile station to effectuate the communication service. Both centralized and distributed control is thereby provided.

摘要翻译： 用于在提供数据通信服务的无线电通信系统中分配无线电资源的装置和相关方法，例如反向链路通信服务，其中数据由移动台传送到通信系统的网络部分。 提供了一种多级控制机制，其中下级无线电空中链路管理器和上级无线电空中链路管理器一起用于向移动台分配资源以实现通信服务。 从而提供集中式和分布式控制。

公开(公告)号：US08116271B2

公开(公告)日：2012-02-14

申请号：US12210864

申请日：2008-09-15

申请人： Zhouyue Pi

发明人： Zhouyue Pi

IPC分类号： H04W4/00

CPC分类号： H04L5/0053 ,  H04L1/1887 ,  H04L5/0007 ,  H04L5/0091

摘要： A method and apparatus allocate acknowledgement channels in a communication network. A linking scheme is established between indices of physical hybrid automatic repeat-request indicator channels (PHICHs), and a combination of indices of control channel elements (CCEs) or indices of physical resource blocks (PRBs) and indices of demodulation reference signals (DMRSs). A scheduling grant is transmitted to a user equipment (UE) by using a plurality of CCEs. In response to receiving a data packet and a DMRS from the UE, an index of a PHICH within the plurality of PHICHs is determined based on at least one index of the CCEs used to transmit the scheduling grant or at least one index of the PRBs used to transmit the data packet, and an index of the DMRS in accordance with the linking scheme established. The BS transmits an acknowledgement signal to the UE using the PHICH indicated by the determined index.

摘要翻译： 方法和装置在通信网络中分配确认信道。 在物理混合自动重传请求指示信道（PHICH）的索引和控制信道要素（CCE）的索引或物理资源块（PRB）的索引和解调参考信号（DMRS）的索引之间建立链接方案， 。 通过使用多个CCE向用户设备（UE）发送调度许可。 响应于从UE接收数据分组和DMRS，基于用于发送调度许可的CCE的至少一个索引或所使用的PRB的至少一个索引来确定多个PHICH内的PHICH的索引 根据建立的链接方案传输数据包和DMRS的索引。 BS使用由确定的索引指示的PHICH向UE发送确认信号。

公开(公告)号：US20120014308A1

公开(公告)日：2012-01-19

申请号：US12914755

申请日：2010-10-28

申请人： Ying Li ,  Zhouyue Pi ,  Baowei Ji ,  Jaehyuk Jang ,  Kaushik Josiam

发明人： Ying Li ,  Zhouyue Pi ,  Baowei Ji ,  Jaehyuk Jang ,  Kaushik Josiam

IPC分类号： H04W72/04 ,  H04W4/06 ,  H04B7/14 ,  H04W36/08

CPC分类号： H04W24/02 ,  H04W36/0072 ,  H04W84/045

摘要： Prior to a change in a configuration, such as a change to the carrier frequency, bandwidth, base station type, and so forth of the base station, the base station can inform a subscriber station to prepare for the reconfiguration by sending a message to the subscriber station. The message informs the subscriber station regarding the change in configuration and a timing regarding the change. The base station can command the subscriber station to handover to the serving base station with the new configuration or the subscriber station can choose to handover to the serving base station with the new configuration. The subscriber station can perform network reentry to the serving base station with the new configuration at the time of or after the new configuration is effective. A communication context between the stations can be maintained and the network reentry can be optimized by omitting one or more operation procedures.

摘要翻译： 在更改配置之前，例如对基站的载波频率，带宽，基站类型等的改变，基站可以通知向用户站准备重新配置，通过向 用户站。 该消息通知用户站关于配置的变化和关于改变的定时。 基站可以命令用户站用新配置切换到服务基站，或者用户台可以选择用新配置切换到服务基站。 用户站可以在新配置有效时或之后使用新配置来对服务基站执行网络重入。 可以维护站之间的通信环境，并且可以通过省略一个或多个操作过程来优化网络重入。

公开(公告)号：US07990920B2

公开(公告)日：2011-08-02

申请号：US12105176

申请日：2008-04-17

申请人： Jianzhong Zhang ,  Zhouyue Pi ,  Farooq Khan

发明人： Jianzhong Zhang ,  Zhouyue Pi ,  Farooq Khan

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04L27/2608 ,  H04B7/0671 ,  H04B7/068 ,  H04L1/0606 ,  H04L1/1607 ,  H04L1/1858 ,  H04L5/0055

摘要： A method of transmitting acknowledgement/nonacknowledgement (ACK/NACK) signals including multiplexing ACK/NACK signals; and repeatedly transmitting for predetermined times the multiplexed signal with each of repetitions of transmitting the multiplexed signal being spread in a frequency domain and being mapped to a plurality of discrete resource units each having a pair of neighboring subcarriers and a predetermined number of Orthogonal Frequency Division Multiplexing (OFDM) control symbols.A method for transmitting Category 0 bits, including modulating the Category 0 bits; repeatedly transmitting the modulated Category 0 bits with each of repetitions of transmitting the modulated Category 0 bits being spread in a frequency domain and being mapped to a plurality of discrete resource units each having a pair of subcarriers and a predetermined number of OFDM control symbols; and mapping the modulated Category 0 bits by a frequency selective transmit diversity (FSTD).

摘要翻译： 一种发送包括复用ACK / NACK信号的确认/非确认（ACK / NACK）信号的方法; 并且在多个信号中重复发送多路复用信号，每次重复发送多路复用信号在频域中扩展，并被映射到多个离散资源单元，每个离散资源单元具有一对相邻子载波和预定数量的正交频分复用 （OFDM）控制符号。 一种用于传输类别0位的方法，包括调制类别0位; 重复地发送调制的分类0比特，其中每个重复发送调制的分类0比特在频域中扩展，并被映射到多个离散资源单元，每个离散资源单元具有一对子载波和预定数量的OFDM控制符号; 并通过频率选择性发射分集（FSTD）将调制的0类比特映射。