公开(公告)号：US20100130223A1

公开(公告)日：2010-05-27

申请号：US12377534

申请日：2006-12-20

申请人： Jingyi Liao ,  Lei Wan

发明人： Jingyi Liao ,  Lei Wan

IPC分类号： H04W72/04

CPC分类号： H04W72/082 ,  H04B7/0452 ,  H04B7/0617 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0051 ,  H04L5/006 ,  H04L5/0075 ,  H04W72/042 ,  H04W72/12

摘要： Resources in a multi-cellular wireless communication system are scheduled. A beam pattern associated with at least one mobile terminal located within one of the cells is identified and assigned to a slot, providing at least one stream to said at least one mobile terminal. At least one other mobile terminal located within said cell having the same beam pattern associated therewith as that of said identified beam pattern to be served during said slot is scheduled. The assigned beam pattern in said cell is communicated to at least one interfering cell.

摘要翻译： 调度多蜂窝无线通信系统中的资源。 与至少一个位于一个小区内的移动终端相关联的波束图案被识别并分配给一个时隙，向至少一个移动终端提供至少一个流。 位于所述小区内的至少一个其他移动终端具有与在所述时隙期间被服务的所述识别的波束图案相关联的具有相同波束图案的调度。 所述小区中的分配的波束模式被传送到至少一个干扰小区。

公开(公告)号：US20090110087A1

公开(公告)日：2009-04-30

申请号：US11928510

申请日：2007-10-30

申请人： Yin Liu ,  Lei Wan

发明人： Yin Liu ,  Lei Wan

IPC分类号： H04L23/02

CPC分类号： H04L5/0007 ,  H04L1/0021 ,  H04L5/0039 ,  H04L5/0044 ,  H04L5/006 ,  H04L5/0075 ,  H04L5/0094 ,  H04L25/0224 ,  H04W72/08

摘要： Methods and apparatus are disclosed for scheduling sub-carriers in an Orthogonal Frequency Division Multiplexing (OFDM) communication system. In an exemplary method, channel quality metric values for each of a plurality of sub-channels are determined, in view of a selected mobile terminal. For each of two or more threshold levels for the channel quality metric, sub-carrier groups composed of sub-carriers corresponding to sub-channels having channel quality metric values superior to the threshold level are identified, and an estimated data throughput is calculated for each of the identified sub-carrier groups. One or more of the identified sub-carrier groups is allocated to the selected mobile terminal according to the estimated data throughputs.

摘要翻译： 公开了用于在正交频分复用（OFDM）通信系统中调度子载波的方法和装置。 在示例性方法中，鉴于所选择的移动终端，确定多个子信道中的每一个的信道质量度量值。 对于信道质量度量的两个或更多个阈值级别中的每一个，识别由与具有优于阈值电平的信道质量度量值相对应的子信道对应的子载波组成的子载波组，并且计算每个信道质量度量值的估计数据吞吐量 的识别子载体组。 所识别的子载波组中的一个或多个根据估计的数据吞吐量被分配给所选择的移动终端。

公开(公告)号：US20090036150A1

公开(公告)日：2009-02-05

申请号：US11832314

申请日：2007-08-01

申请人： Jingyi Liao ,  Lei Wan

发明人： Jingyi Liao ,  Lei Wan

IPC分类号： H04B15/00

CPC分类号： H04B7/0671 ,  H04B7/0862

摘要： In a radio network a determination is made whether to implement cyclical delay diversity (CDD) for a radio frequency connection involving a radio base station (26) and a wireless terminal (30). The determination whether to implement cyclical delay diversity (CDD) is made in accordance with interference distribution at the wireless terminal (30), as such interference distribution is measured or otherwise perceived. When a determination is made to implement the cyclical delay diversity for the connection, plural transmit antennas (38) of the radio base station (26) are employed to implement the cyclical delay diversity for the connection. One or more indications of the interference distribution may be received and used to make the determination. The indication(s) of interference distribution can take the form of information received from the wireless terminal, and/or the form of frequency reuse plan information for interfering cells. For example, the determination to implement the cyclical delay diversity can be made affirmatively if the frequency reuse for interfering cells is above a predetermined frequency reuse number. In differing embodiments, either the radio base station (26) or the wireless terminal (30) can make the CDD implementation determination.

摘要翻译： 在无线电网络中，确定是否对涉及无线电基站（26）和无线终端（30）的射频连接实施周期性延迟分集（CDD）。 根据无线终端（30）的干扰分布进行是否实施周期性延迟分集（CDD）的确定，因为这种干扰分布被测量或以其他方式感知。 当确定实现用于连接的循环延迟分集时，采用无线电基站（26）的多个发射天线（38）来实现连接的周期性延迟分集。 可以接收干扰分布的一个或多个指示并用于进行确定。 干扰分布的指示可以采取从无线终端接收的信息的形式，和/或干扰小区的频率重用计划信息的形式。 例如，如果干扰小区的频率重用高于预定的频率重用次数，则可以肯定地确定实现周期性延迟分集。 在不同的实施例中，无线电基站（26）或无线终端（30）可以进行CDD实现确定。

公开(公告)号：US20080192842A1

公开(公告)日：2008-08-14

申请号：US11665782

申请日：2004-10-29

申请人： Zesong Fei ,  Lei Wan ,  Jingming Kuang

发明人： Zesong Fei ,  Lei Wan ,  Jingming Kuang

IPC分类号： H04K1/10 ,  H03K9/00

CPC分类号： H04L25/0236 ,  H04L1/0047 ,  H04L1/1607 ,  H04L1/1812 ,  H04L25/023 ,  H04L25/03171 ,  H04L25/03324

摘要： The invention relates to channel estimation in a receiver. The channel estimation for a current data block is based on a previous data block, where the two data blocks are based on common information. Data symbol hypotheses of the previous data block can be forwarded to a channel estimator and used as known reference symbols when estimating the channel response for the current block. Alternatively, a combination of the data symbol hypotheses and preliminary data symbol estimates of the current block are used as reference symbols in a refined channel estimation for the current block. Data bit hypotheses of the previous block can also be input as a priori data in a preliminary demodulation of the current block. The demodulator output is used as reference data in a refined channel estimation for the current block. The invention is well-adapted for usage in connection with Hybrid ARQ.

摘要翻译： 本发明涉及一种接收机中的信道估计。 当前数据块的信道估计基于先前的数据块，其中两个数据块基于公共信息。 当估计当前块的信道响应时，先前数据块的数据符号假设可被转发到信道估计器并用作已知参考符号。 或者，将当前块的数据符号假设和初步数据符号估计的组合用作当前块的精细信道估计中的参考符号。 在当前块的初步解调中，先前块的数据比特假设也可以作为先验数据输入。 解调器输出用作当前块的精细信道估计中的参考数据。 本发明适用于与混合ARQ有关的使用。