公开(公告)号：US08437788B2

公开(公告)日：2013-05-07

申请号：US12682528

申请日：2008-10-09

申请人： Hang Li ,  Qihua Huang ,  Guanghan Xu ,  Hui Zhou ,  Hui Fan

发明人： Hang Li ,  Qihua Huang ,  Guanghan Xu ,  Hui Zhou ,  Hui Fan

IPC分类号： H04B7/00 ,  H04W72/00

CPC分类号： H04W72/08 ,  H04W28/18 ,  H04W48/08 ,  H04W72/082 ,  H04W72/085

摘要： Disclosed are method and apparatus for allocating radio resources. The method for allocating radio resource includes: determining, by a base station, a group of downlink sub-channels and transmission parameters related to the group of downlink sub-channels according to downlink channel characteristics and downlink interference characteristics of each resource block and a downlink bandwidth requirement of a terminal reported by the terminal, and transmitting the group of downlink sub-channels and the related transmission parameters determined to the terminal. The method and apparatus are able to allocate radio resources and determine transmission parameters based on user service requirement and system channel conditions, which greatly optimizes the system performances and improves efficiency.

摘要翻译： 公开了用于分配无线电资源的方法和装置。 分配无线电资源的方法包括：根据下行链路信道特性和每个资源块的下行干扰特性以及下行链路的下行链路干扰特性，由基站确定一组下行链路子信道和与该组下行链路子信道有关的传输参数 由终端报告的终端的带宽要求，以及向终端发送确定的下行链路子信道组和相关传输参数。 该方法和装置能够根据用户服务需求和系统信道条件分配无线资源，确定传输参数，极大地优化了系统性能，提高了效率。

公开(公告)号：US20100311452A1

公开(公告)日：2010-12-09

申请号：US12682528

申请日：2008-10-09

申请人： Hang Li ,  Qihua Huang ,  Guanghan Xu ,  Hui Zhou ,  Hui Fan

发明人： Hang Li ,  Qihua Huang ,  Guanghan Xu ,  Hui Zhou ,  Hui Fan

IPC分类号： H04W72/04

CPC分类号： H04W72/08 ,  H04W28/18 ,  H04W48/08 ,  H04W72/082 ,  H04W72/085

摘要： Disclosed are method and apparatus for allocating radio resources. The method for allocating radio resource includes: determining, by a base station, a group of downlink sub-channels and transmission parameters related to the group of downlink sub-channels according to downlink channel characteristics and downlink interference characteristics of each resource block and a downlink bandwidth requirement of a terminal reported by the terminal, and transmitting the group of downlink sub-channels and the related transmission parameters determined to the terminal. The method and apparatus are able to allocate radio resources and determine transmission parameters based on user service requirement and system channel conditions, which greatly optimizes the system performances and improves efficiency.

摘要翻译： 公开了用于分配无线电资源的方法和装置。 分配无线电资源的方法包括：根据下行链路信道特性和每个资源块的下行干扰特性以及下行链路的下行链路干扰特性，由基站确定一组下行链路子信道和与该组下行链路子信道有关的传输参数 由终端报告的终端的带宽要求，以及向终端发送确定的下行链路子信道组和相关传输参数。 该方法和装置能够根据用户服务需求和系统信道条件分配无线资源，确定传输参数，极大地优化了系统性能，提高了效率。

公开(公告)号：US20100220677A1

公开(公告)日：2010-09-02

申请号：US12682518

申请日：2008-10-09

申请人： Hang Li ,  Guanghan Xu ,  Yongquan Qiang ,  Hui Zhou ,  Qiang Ma

发明人： Hang Li ,  Guanghan Xu ,  Yongquan Qiang ,  Hui Zhou ,  Qiang Ma

IPC分类号： H04W72/00 ,  H04L12/66

CPC分类号： H04L1/1835 ,  H04L1/0001 ,  H04L1/1607 ,  H04L45/00 ,  H04L47/26 ,  H04L47/34 ,  H04L47/70 ,  H04L47/76

摘要： Embodiments of the present invention provide a method and device for transmitting voice in a wireless system. The method includes: identifying, by a transmitter, each original voice encoding packet needed to be sent out with a number indicating playback order, and performing channel encoding on each identified original voice encoding packet to construct a voice session packet; establishing a voice session or voice data mixed session between the transmitter and a receiver; allocating a channel dynamically for the voice session or the voice data mixed session; sending, by the transmitter, newly-arrived voice session packets, delayed voice session packets, voice session packets needed to be re-transmitted, data session packets and control command packets according to pre-configured priority; receiving and detecting, by the receiver, the voice session packets, sending an NACK packet comprising number of a lost voice session packet to the transmitter to inform the transmitter to re-transmit the voice session packet, if it is confirmed that the voice session packet is lost; and putting voice session packets properly received into a jitter buffer controller at the receiver if the receiver is a terminal. In embodiments of the present invention, spectral efficiency and reliability of real-time voice services in a wireless multi-service transmission system may be improved while satisfying the Quality of Service (QoS) requirements of real-time services, such as voice service.

摘要翻译： 本发明的实施例提供了一种用于在无线系统中发送语音的方法和装置。 该方法包括：通过发送器识别需要发出的每个原始语音编码分组，其中指示播放顺序的数字，并且对每个识别的原始语音编码分组执行信道编码以构建语音会话分组; 在发射机和接收机之间建立语音会话或语音数据混合会话; 为语音会话或语音数据混合会话动态分配信道; 根据预配置的优先级，由发射机发送新到达的语音会话分组，延迟的语音会话分组，需要重发的语音会话分组，数据会话分组和控制命令分组; 由所述接收机接收和检测所述语音会话分组，向所述发射机发送包括丢失语音会话分组数量的NACK分组，以通知所述发射机重新发送所述语音会话分组，如果确认所述语音会话分组 失去了 并且如果接收器是终端，则将语音会话分组正确地接收到接收机的抖动缓冲器控制器中。 在本发明的实施例中，可以在满足诸如语音服务等实时业务的服务质量（QoS）要求的同时，提高无线多业务传输系统中的实时语音业务的频谱效率和可靠性。

公开(公告)号：US08331269B2

公开(公告)日：2012-12-11

申请号：US12682518

申请日：2008-10-09

申请人： Hang Li ,  Guanghan Xu ,  Yongquan Qiang ,  Hui Zhou ,  Qiang Ma

发明人： Hang Li ,  Guanghan Xu ,  Yongquan Qiang ,  Hui Zhou ,  Qiang Ma

IPC分类号： H04L12/66 ,  H04W4/00 ,  G06F15/173

CPC分类号： H04L1/1835 ,  H04L1/0001 ,  H04L1/1607 ,  H04L45/00 ,  H04L47/26 ,  H04L47/34 ,  H04L47/70 ,  H04L47/76

摘要： Embodiments of the present invention provide a method and device for transmitting voice in a wireless system. The method includes: identifying, by a transmitter, each original voice encoding packet needed to be sent out with a number indicating playback order, and performing channel encoding on each identified original voice encoding packet to construct a voice session packet; establishing a voice session or voice data mixed session between the transmitter and a receiver; allocating a channel dynamically for the voice session or the voice data mixed session; sending, by the transmitter, newly-arrived voice session packets, delayed voice session packets, voice session packets needed to be re-transmitted, data session packets and control command packets according to pre-configured priority; receiving and detecting, by the receiver, the voice session packets, sending an NACK packet comprising number of a lost voice session packet to the transmitter to inform the transmitter to re-transmit the voice session packet, if it is confirmed that the voice session packet is lost; and putting voice session packets properly received into a jitter buffer controller at the receiver if the receiver is a terminal. In embodiments of the present invention, spectral efficiency and reliability of real-time voice services in a wireless multi-service transmission system may be improved while satisfying the Quality of Service (QoS) requirements of real-time services, such as voice service.

摘要翻译： 本发明的实施例提供了一种用于在无线系统中发送语音的方法和装置。 该方法包括：通过发送器识别需要发出的每个原始语音编码分组，其中指示播放顺序的数字，并且对每个识别的原始语音编码分组执行信道编码以构建语音会话分组; 在发射机和接收机之间建立语音会话或语音数据混合会话; 为语音会话或语音数据混合会话动态分配信道; 根据预配置的优先级，由发射机发送新到达的语音会话分组，延迟的语音会话分组，需要重发的语音会话分组，数据会话分组和控制命令分组; 由所述接收机接收和检测所述语音会话分组，向所述发射机发送包括丢失语音会话分组数量的NACK分组，以通知所述发射机重新发送所述语音会话分组，如果确认所述语音会话分组 失去了 并且如果接收器是终端，则将语音会话分组正确地接收到接收机的抖动缓冲器控制器中。 在本发明的实施例中，可以在满足诸如语音服务等实时业务的服务质量（QoS）要求的同时，提高无线多业务传输系统中的实时语音业务的频谱效率和可靠性。

公开(公告)号：US08086181B2

公开(公告)日：2011-12-27

申请号：US12961741

申请日：2010-12-07

申请人： Daniel Wee ,  Hang Li ,  Weidong Yang ,  Guanghan Xu

发明人： Daniel Wee ,  Hang Li ,  Weidong Yang ,  Guanghan Xu

IPC分类号： H04B1/00 ,  H04B1/38

CPC分类号： H04W16/18 ,  H04B1/7103 ,  H04B2201/709709 ,  H04J11/005 ,  H04J13/16 ,  H04W16/10 ,  H04W28/18 ,  H04W72/00 ,  H04W72/08 ,  H04W88/08 ,  H04W88/12

摘要： A method and system for interference reduction for telecommunication systems are disclosed. The system comprises a base station control device (BCD) for configuring one or more parameters for operating one or more base stations (BSs), a first BS covering a first cell having one or more mobile terminals therein, a second BS covering a second cell neighboring to the first cell and sharing a predetermined frequency band with the first cell, wherein one or more radio frames constructed for communications between the first BS and any mobile terminal of the first cell and one or more radio frames constructed for communications between the second BS and any mobile terminal of the second cell are distinguishable by defining different channel configuration sets having one or more operation parameters, wherein the parameters includes a training sequence, a spreading code, and a channel observation window position.

摘要翻译： 公开了用于电信系统的干扰减少的方法和系统。 该系统包括用于配置用于操作一个或多个基站（BS）的一个或多个参数的基站控制设备（BCD），覆盖其中具有一个或多个移动终端的第一小区的第一BS，覆盖第二小区的第二BS 与所述第一小区相邻并且与所述第一小区共享预定频带，其中为所述第一小区和所述第一小区的任何移动终端之间的通信而构造的一个或多个无线电帧以及为所述第二小区之间的通信而构造的一个或多个无线电帧 并且通过定义具有一个或多个操作参数的不同的信道配置集来区分第二小区的任何移动终端，其中参数包括训练序列，扩展码和信道观察窗口位置。

公开(公告)号：US07656936B2

公开(公告)日：2010-02-02

申请号：US10352774

申请日：2003-01-28

申请人： Hang Li ,  Weidong Yang ,  Guanghan Xu

发明人： Hang Li ,  Weidong Yang ,  Guanghan Xu

IPC分类号： H04B1/00 ,  H04B1/10 ,  H04B7/02 ,  H04L1/02

CPC分类号： H04B1/71055 ,  H04B7/0851 ,  H04W16/28

摘要： A method and system for reducing interference in a wireless communication network is disclosed. The wireless communication network has at least one base station using an antenna array and one or more code channels to receive or transmit one or more communication signals from or to a plurality of terminals used by one or more users. A signal received by the antenna array carries one or more training sequences and a traffic signal in a frame. After estimating a spatial signature and joint channel response model per user based on the training sequences, one or more spatial weights are found based on the estimated spatial signature and joint channel response model to maximize a signal to noise ratio. A joint detection matrix is then formed based on the estimated spatial weights, the joint channel response model, and a user code channel assignment. After code correlating a traffic signal to obtain one or more user specific multi-antenna signals, a spatial combining is performed on one or more multi-antenna signals associated with each user to generate scalar symbol estimates. Thereafter, a joint detection is done based on the scalar symbol estimates using the joint detection matrix. Similar techniques can be used for downlink communications.

摘要翻译： 公开了一种用于减少无线通信网络中的干扰的方法和系统。 无线通信网络具有使用天线阵列和一个或多个代码信道的至少一个基站来接收或发送来自一个或多个用户使用的多个终端的一个或多个通信信号。 由天线阵列接收的信号在帧中携带一个或多个训练序列和交通信号。 在基于训练序列估计每个用户的空间签名和联合信道响应模型之后，基于估计的空间签名和联合信道响应模型找到一个或多个空间权重以使信噪比最大化。 然后基于估计的空间权重，联合信道响应模型和用户代码信道分配来形成联合检测矩阵。 在将业务信号相关以获得一个或多个用户特定多天线信号的代码之后，对与每个用户相关联的一个或多个多天线信号执行空间组合以生成标量符号估计。 此后，基于使用联合检测矩阵的标量符号估计完成联合检测。 类似的技术可以用于下行链路通信。

公开(公告)号：US20080160921A1

公开(公告)日：2008-07-03

申请号：US12047683

申请日：2008-03-13

申请人： Hang Li ,  Guanghan Xu

发明人： Hang Li ,  Guanghan Xu

IPC分类号： H04B17/00

CPC分类号： H04W52/243 ,  H04B17/336 ,  H04L1/0003

摘要： A method and system for mitigating interference in a communication system, comprising at least one base station and at least one terminal, are disclosed. The base stations and terminals communicate through a channel existing between them, and the channels include at least a first signal channel and a second signal channel. The method includes determination of channel, noise and self-interference characteristic, computation of a rate limit of the channels, computation of the rate assignment of the channels, and assignment of the computed rate assignments to the channels. In another aspect of the present invention, the method includes determination of channel characteristics; computation of a power control margin, self-interference characteristics, power control command; and assignment of the computed power control command to each communicating terminal and base station. The above power and rate control methods may operate jointly to mitigate both intra-cell and inter-cell interference in wireless communication systems.

摘要翻译： 公开了一种用于减轻包括至少一个基站和至少一个终端的通信系统中的干扰的方法和系统。 基站和终端通过它们之间存在的信道通信，并且信道至少包括第一信号信道和第二信号信道。 该方法包括信道，噪声和自干扰特性的确定，信道的速率限制的计算，信道的速率分配的计算以及所计算的速率分配到信道的分配。 在本发明的另一方面，所述方法包括确定信道特性; 功率控制余量的计算，自干扰特性，功率控制指令; 以及将计算出的功率控制命令分配给每个通信终端和基站。 上述功率和速率控制方法可以共同操作以减轻无线通信系统中的小区内和小区间干扰。

公开(公告)号：US20060293060A1

公开(公告)日：2006-12-28

申请号：US11244973

申请日：2005-10-05

申请人： Weidong Yang ,  John Grabner ,  Guanghan Xu ,  Hang Jin ,  Hang Li

发明人： Weidong Yang ,  John Grabner ,  Guanghan Xu ,  Hang Jin ,  Hang Li

IPC分类号： H04Q7/20

CPC分类号： H04W36/22

摘要： A method and system is disclosed for load balancing in a wireless communication system. The method has two major processes for load balancing purpose: the first process moves a mobile terminal from its host base station to some less loaded base station after the expiration of a switch time interval determined by the signal strength difference between the original host base station and the base station that the mobile terminal is moving to; the second process moves the mobile terminal from its host base station to the base station with the strongest signal strength periodically.

摘要翻译： 公开了一种用于无线通信系统中的负载平衡的方法和系统。 该方法具有负载均衡目的的两个主要过程：第一过程将移动终端从其主机基站移动到在原始主机基站与原始主机基站之间的信号强度差确定的切换时间间隔期满之后的一些较少加载的基站 移动终端正在移动的基站; 第二过程周期性地以最强的信号强度将移动终端从其主机基站移动到基站。

公开(公告)号：US20060210001A1

公开(公告)日：2006-09-21

申请号：US11083478

申请日：2005-03-18

申请人： Hang Li ,  Guanghan Xu

发明人： Hang Li ,  Guanghan Xu

IPC分类号： H03D1/04

CPC分类号： H04W52/243 ,  H04B17/336 ,  H04L1/0003

摘要： A method and system for mitigating interference in a communication system, comprising at least one base station and at least one terminal, are disclosed. The base stations and terminals communicate through a channel existing between them, and the channels include at least a first signal channel and a second signal channel. The method includes determination of channel, noise and self-interference characteristic, computation of a rate limit of the channels, computation of the rate assignment of the channels, and assignment of the computed rate assignments to the channels. In another aspect of the present invention, the method includes determination of channel characteristics; computation of a power control margin, self-interference characteristics, power control command; and assignment of the computed power control command to each communicating terminal and base station. The above power and rate control methods may operate jointly to mitigate both intra-cell and inter-cell interference in wireless communication systems.

摘要翻译： 公开了一种用于减轻包括至少一个基站和至少一个终端的通信系统中的干扰的方法和系统。 基站和终端通过它们之间存在的信道通信，并且信道至少包括第一信号信道和第二信号信道。 该方法包括信道，噪声和自干扰特性的确定，信道的速率限制的计算，信道的速率分配的计算以及所计算的速率分配到信道的分配。 在本发明的另一方面，所述方法包括确定信道特性; 功率控制余量的计算，自干扰特性，功率控制指令; 以及将计算出的功率控制命令分配给每个通信终端和基站。 上述功率和速率控制方法可以共同操作以减轻无线通信系统中的小区内和小区间干扰。

公开(公告)号：US08289914B2

公开(公告)日：2012-10-16

申请号：US12680667

申请日：2008-09-27

申请人： Hang Li ,  Guanghan Xu

发明人： Hang Li ,  Guanghan Xu

IPC分类号： H04W4/00

CPC分类号： H04L5/0007 ,  H04L5/0042 ,  H04L5/0044 ,  H04L5/006 ,  H04L5/0064 ,  H04L5/0087 ,  H04L5/0096 ,  H04L25/03343 ,  H04L2025/03802

摘要： Embodiments of the present invention provide a signal transmission method and apparatus used in an Orthogonal Frequency Division Multiple Access (OFDMA) wireless communication system, to enhance stability of signal transmission and resist time-frequency dispersion. The signal transmission method used in the OFDMA wireless communication system provided by an embodiment of the invention includes: converting an L×1 symbol vector into an N×1 modulating signal vector according to a loading factor fed back by a receiving party, in which value of N is known, both L and N are natural numbers larger than one, N is larger than or equal to L, the loading factor is a ratio of L and N; mapping the N×1 modulating signal vector into N time-frequency grids; and converting the N time-frequency grids into a signal waveform and sending the signal waveform to the receiving party.

摘要翻译： 本发明的实施例提供了一种在正交频分多址（OFDMA）无线通信系统中使用的信号传输方法和装置，以增强信号传输的稳定性并抵抗时间 - 频率分散。 在本发明实施例提供的OFDMA无线通信系统中使用的信号传输方法包括：根据接收方反馈的负载因子将L×1符号向量转换为N×1个调制信号向量，其中值 N是已知的，L和N都是大于1的自然数，N大于或等于L，负载系数是L和N的比率; 将N×1调制信号矢量映射为N个时频网格; 并将N个时频网格转换成信号波形并将信号波形发送到接收方。