公开(公告)号：US08351532B2

公开(公告)日：2013-01-08

申请号：US12239983

申请日：2008-09-29

申请人： Fang-Chen Cheng ,  Lei Song ,  Henry Hui Ye

发明人： Fang-Chen Cheng ,  Lei Song ,  Henry Hui Ye

IPC分类号： H04B7/02

CPC分类号： H04L5/0053 ,  H04L1/0027 ,  H04L1/1671 ,  H04L1/1692 ,  H04L1/1893 ,  H04L5/0007

摘要： An exemplary method of communicating includes determining a first user channel estimate from a communication comprising first and second user reference sequences. The first user reference sequence is reconstructed using the determined first user channel estimate. The communication is revised based upon the reconstructed first user reference sequence. Then determining a second user channel estimate is based on the revised communication.

摘要翻译： 一种示例性通信方法包括从包括第一和第二用户参考序列的通信确定第一用户信道估计。 使用所确定的第一用户信道估计来重建第一用户参考序列。 基于重构的第一用户参考序列修改通信。 然后确定第二用户信道估计是基于经修订的通信。

公开(公告)号：US20090196370A1

公开(公告)日：2009-08-06

申请号：US12239983

申请日：2008-09-29

申请人： Fang-Chen Cheng ,  Lei Song ,  Henry Hui Ye

发明人： Fang-Chen Cheng ,  Lei Song ,  Henry Hui Ye

IPC分类号： H04B7/02

CPC分类号： H04L5/0053 ,  H04L1/0027 ,  H04L1/1671 ,  H04L1/1692 ,  H04L1/1893 ,  H04L5/0007

摘要： An exemplary method of communicating includes determining a first user channel estimate from a communication comprising first and second user reference sequences. The first user reference sequence is reconstructed using the determined first user channel estimate. The communication is revised based upon the reconstructed first user reference sequence. Then determining a second user channel estimate is based on the revised communication.

摘要翻译： 一种示例性通信方法包括从包括第一和第二用户参考序列的通信确定第一用户信道估计。 使用所确定的第一用户信道估计来重建第一用户参考序列。 基于重构的第一用户参考序列修改通信。 然后确定第二用户信道估计是基于经修订的通信。

公开(公告)号：US09319195B2

公开(公告)日：2016-04-19

申请号：US12237849

申请日：2008-09-25

申请人： Fang-Chen Cheng ,  Lei Song

发明人： Fang-Chen Cheng ,  Lei Song

IPC分类号： H04W4/00 ,  G08C25/02 ,  H04L5/00 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18

CPC分类号： H04L5/0053 ,  H04L1/0027 ,  H04L1/1671 ,  H04L1/1692 ,  H04L1/1893 ,  H04L5/0007

摘要： An exemplary method of communicating includes multiplexing control signaling in a physical uplink control channel (PUCCH) onto a physical uplink shared channel (PUSCH) by puncturing PUSCH data with PUCCH control information using a uniform distribution of the PUCCH information within at least one resource block of the PUSCH data. One example includes using a first constant amplitude zero autocorrelation sequence (CAZAC) index on PUCCH for communicating CQI and ACK information together and using a second, different CAZAC sequence index for communicating CQI information alone or with NAK information or DTX. The used index provides an indication of whether ACK information is communicated. The used index also provides implicit DTX detection without additional processing.

摘要翻译： 一种通信的示例性方法包括：在物理上行链路控制信道（PUCCH）中将控制信令复用到物理上行链路共享信道（PUSCH）上，通过使用PUCCH信息在PUCCH资源块的至少一个资源块内均匀分布PUCCH信息 PUSCH数据。 一个例子包括在PUCCH上使用第一恒定幅度零自相关序列（CAZAC）索引，用于一起传送CQI和ACK信息，并且使用第二不同的CAZAC序列索引来单独地传送CQI信息或与NAK信息或DTX通信。 所使用的索引提供ACK信息是否通信的指示。 使用的索引还提供隐含的DTX检测，无需额外的处理。

公开(公告)号：US20100142471A1

公开(公告)日：2010-06-10

申请号：US12684250

申请日：2010-01-08

申请人： Fang-Chen Cheng ,  Shupeng-Li ,  Lei Song

发明人： Fang-Chen Cheng ,  Shupeng-Li ,  Lei Song

IPC分类号： H04W72/12

CPC分类号： H04W72/1278 ,  H04B7/022 ,  H04W16/10 ,  Y02D70/122 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/442

摘要： A method and an apparatus for scheduling transmissions of a plurality of cells in a wireless communications system including one or more base stations is provided. The method comprises providing a set of virtual channels to enable an intra-cell transmission orthogonal to another transmission within each cell of the plurality of cells and inter-cell transmissions orthogonal to other transmissions across a cluster of cells associated with the one or more base stations. The method further comprises exchanging signaling messages between two or more base stations to coordinate scheduling of the intra-cell transmission with the inter-cell transmissions for the cluster of cells. For optimizing a parameter associated with scheduling of a plurality of users from a cluster of cells in a wireless communication system, an optimal power level for the parameter of each active user may be searched to maximize an indication of system capacity of the wireless communication system. This enables a coordinated jointly scheduling of the users active in the cluster of cells based on the optimal power levels such that the total interference within the cluster may be minimized to maximize the system throughput/capacity.

摘要翻译： 提供了一种用于在包括一个或多个基站的无线通信系统中调度多个小区的传输的方法和装置。 该方法包括提供一组虚拟信道以使得能够与多个小区的每个小区内的另一个传输正交的小区内传输，以及与一个或多个基站相关联的小区的其他传输正交的小区间传输 。 该方法还包括在两个或多个基站之间交换信令消息以协调小区内传输的调度与小区簇的小区间传输。 为了优化与来自无线通信系统中的小区的集群的多个用户的调度相关联的参数，可以搜索每个活动用户的参数的最佳功率级别以最大化无线通信系统的系统容量的指示。 这使得能够基于最佳功率电平来协调在小区集群中活动的用户的协调调度，使得可以最小化集群内的总干扰以使系统吞吐量/容量最大化。

公开(公告)号：US08953562B2

公开(公告)日：2015-02-10

申请号：US11670092

申请日：2007-02-01

申请人： Rainer Bachl ,  Fang-Chen Cheng ,  Jung A. Lee ,  Lei Song ,  Said Tatesh

发明人： Rainer Bachl ,  Fang-Chen Cheng ,  Jung A. Lee ,  Lei Song ,  Said Tatesh

IPC分类号： H04B7/216 ,  H04W74/08 ,  H04L27/26 ,  H04L25/02

CPC分类号： H04W74/0866 ,  H04L25/0204 ,  H04L27/2613

摘要： The present invention provides a method and apparatus for using uplink reference signals for access grant requests. The method includes determining that at least one mobile unit is requesting access to at least one uplink channel based on information indicative of a change in a masking sequence applied to at least one reference signal. Another embodiment of the present invention includes providing a first reference signal modulated by a first masking sequence to indicate a request for access to at least one uplink channel.

摘要翻译： 本发明提供一种使用上行链路参考信号进行接入许可请求的方法和装置。 该方法包括基于指示应用于至少一个参考信号的屏蔽序列的改变的信息来确定至少一个移动单元正在请求对至少一个上行链路信道的访问。 本发明的另一实施例包括提供由第一屏蔽序列调制的第一参考信号，以指示访问至少一个上行链路信道的请求。

公开(公告)号：US20080267134A1

公开(公告)日：2008-10-30

申请号：US11741068

申请日：2007-04-27

申请人： Fang-Chen Cheng ,  Jung A. Lee ,  Lei Song ,  Said Tatesh ,  Henry H. Ye

发明人： Fang-Chen Cheng ,  Jung A. Lee ,  Lei Song ,  Said Tatesh ,  Henry H. Ye

IPC分类号： H04B7/216

CPC分类号： H04W56/00

摘要： The present invention provides a method for transmitting and receiving random access channel messages in an extended range wireless communication system. One embodiment of the method may include accumulating, at a base station, signal energy received during a first portion of a transmission time interval. The method may also include accumulating, at the base station, signal energy received during a second portion of the transmission time interval. The first and second portions are offset from the start or end of the transmission time interval by selected delay intervals. The method may further include detecting the message(s) based on the signal energy accumulated during the first and second portions of the transmission time interval.

摘要翻译： 本发明提供了一种用于在扩展范围无线通信系统中发送和接收随机接入信道消息的方法。 该方法的一个实施例可以包括在基站处累积在传输时间间隔的第一部分期间接收到的信号能量。 该方法还可以包括在基站处累积在传输时间间隔的第二部分期间接收到的信号能量。 第一和第二部分通过所选择的延迟间隔从传输时间间隔的开始或结束偏移。 该方法还可以包括基于在传输时间间隔的第一和第二部分期间累积的信号能量来检测消息。

公开(公告)号：US20070280175A1

公开(公告)日：2007-12-06

申请号：US11421632

申请日：2006-06-01

申请人： Fang-Chen Cheng ,  Shupeng Li ,  Lei Song

发明人： Fang-Chen Cheng ,  Shupeng Li ,  Lei Song

IPC分类号： H04Q7/24

CPC分类号： H04W72/1278 ,  H04B7/022 ,  H04W16/10 ,  Y02D70/122 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/442

摘要： A method and an apparatus for scheduling transmissions of a plurality of cells in a wireless communications system including one or more base stations is provided. The method comprises providing a set of virtual channels to enable an intra-cell transmission orthogonal to another transmission within each cell of the plurality of cells and inter-cell transmissions orthogonal to other transmissions across a cluster of cells associated with the one or more base stations. The method further comprises exchanging signaling messages between two or more base stations to coordinate scheduling of the intra-cell transmission with the inter-cell transmissions for the cluster of cells. For optimizing a parameter associated with scheduling of a plurality of users from a cluster of cells in a wireless communication system, an optimal power level for the parameter of each active user may be searched to maximize an indication of system capacity of the wireless communication system. This enables a coordinated jointly scheduling of the users active in the cluster of cells based on the optimal power levels such that the total interference within the cluster may be minimized to maximize the system throughput/capacity.

摘要翻译： 提供了一种用于在包括一个或多个基站的无线通信系统中调度多个小区的传输的方法和装置。 该方法包括提供一组虚拟信道以使得能够与多个小区的每个小区内的另一个传输正交的小区内传输，以及与一个或多个基站相关联的小区的其他传输正交的小区间传输 。 该方法还包括在两个或多个基站之间交换信令消息以协调小区内传输的调度与小区簇的小区间传输。 为了优化与来自无线通信系统中的小区的集群的多个用户的调度相关联的参数，可以搜索每个活动用户的参数的最佳功率级别以最大化无线通信系统的系统容量的指示。 这使得能够基于最佳功率电平来协调在小区集群中活动的用户的协调调度，使得可以最小化集群内的总干扰以使系统吞吐量/容量最大化。

公开(公告)号：US20070253381A1

公开(公告)日：2007-11-01

申请号：US11415993

申请日：2006-05-01

申请人： Rainer Bachl ,  Fang-Chen Cheng ,  James Seymour ,  Lei Song ,  Said Tatesh

发明人： Rainer Bachl ,  Fang-Chen Cheng ,  James Seymour ,  Lei Song ,  Said Tatesh

IPC分类号： H04Q7/24

CPC分类号： H04L5/0037 ,  H04L5/0007 ,  H04W16/12

摘要： A method is provided for operating a multi-bandwidth OFDMA system that can achieve an enhanced bandwidth efficiency due to windowing without significantly impacting the underlying physical design of the receive filters. The method comprises establishing a bandwidth over which the radio resources transmit signals, the bandwidth being comprised of an edge-band and a center-band. Narrow band radio resources are assigned to a portion of the bandwidth that is at least partially within the edge-band.

摘要翻译： 提供了一种用于操作多带宽OFDMA系统的方法，其可以通过窗口实现增强的带宽效率，而不会显着影响接收滤波器的底层物理设计。 该方法包括建立无线电资源传输信号的带宽，带宽由边缘频带和中心频带组成。 窄带无线电资源被分配给至少部分在边缘频带内的带宽的一部分。

公开(公告)号：US08000306B2

公开(公告)日：2011-08-16

申请号：US11741068

申请日：2007-04-27

申请人： Fang-Chen Cheng ,  Jung A. Lee ,  Lei Song ,  Said Tatesh ,  Henry H. Ye

发明人： Fang-Chen Cheng ,  Jung A. Lee ,  Lei Song ,  Said Tatesh ,  Henry H. Ye

IPC分类号： H04J3/06

CPC分类号： H04W56/00

摘要： The present invention provides a method for transmitting and receiving random access channel messages in an extended range wireless communication system. One embodiment of the method may include accumulating, at a base station, signal energy received during a first portion of a transmission time interval. The method may also include accumulating, at the base station, signal energy received during a second portion of the transmission time interval. The first and second portions are offset from the start or end of the transmission time interval by selected delay intervals. The method may further include detecting the message(s) based on the signal energy accumulated during the first and second portions of the transmission time interval.

摘要翻译： 本发明提供了一种用于在扩展范围无线通信系统中发送和接收随机接入信道消息的方法。 该方法的一个实施例可以包括在基站处累积在传输时间间隔的第一部分期间接收到的信号能量。 该方法还可以包括在基站处累积在传输时间间隔的第二部分期间接收到的信号能量。 第一和第二部分通过所选择的延迟间隔从传输时间间隔的开始或结束偏移。 该方法还可以包括基于在传输时间间隔的第一和第二部分期间累积的信号能量来检测消息。

公开(公告)号：US20080232516A1

公开(公告)日：2008-09-25

申请号：US11842398

申请日：2007-08-21

申请人： Fang-Chen Cheng ,  Lei Song ,  Robert Soni

发明人： Fang-Chen Cheng ,  Lei Song ,  Robert Soni

IPC分类号： H04L27/06

CPC分类号： H04L5/023 ,  H04L27/2657 ,  H04L2027/0034

摘要： The present invention provides a method of processing a baseband signal including user signals transmitted by a plurality of users. The method includes applying frequency offset compensations to the baseband signal, thereby to form respective frequency-shifted baseband signals. Each frequency compensation shifts the baseband signal by a multiple of a selected frequency offset and each resulting frequency-shifted baseband signal includes frequency-shifted user signals. The method also includes assigning at least some of the frequency-shifted user signals to groups. Each group corresponds to one of the frequency compensations and the assignment is carried out so that each group includes frequency-shifted user signals that have an estimated frequency offset that lies within a range determined by the corresponding frequency compensation. The method further includes estimating a frequency offset of each of the user signals based on the frequency-shifted user signal and the frequency compensation of the group including the frequency-shifted user signal.

摘要翻译： 本发明提供一种处理包括由多个用户发送的用户信号的基带信号的方法。 该方法包括对基带信号应用频率补偿补偿，从而形成相应的频移基带信号。 每个频率补偿将基带信号移位所选频率偏移的倍数，并且每个所得到的频移基带信号包括频移用户信号。 该方法还包括将至少一些频移用户信号分配给组。 每个组对应于频率补偿之一，并且执行分配，使得每个组包括具有位于由对应的频率补偿确定的范围内的估计频率偏移的频移用户信号。 该方法还包括基于频移用户信号和包括频移用户信号的组的频率补偿来估计每个用户信号的频率偏移。