公开(公告)号：WO2007040952A3

公开(公告)日：2007-04-12

申请号：PCT/US2006/036029

申请日：2006-09-14

Applicant: MOTOROLA, INC. ,  WHINNETT, Nick W.

Inventor： WHINNETT, Nick W.

IPC: H04B1/02

Abstract: A transmitter comprises functionality (101) for receiving a sequence of input modulation symbols. An M-point discrete Fourier transform (105) is applied to the block of input modulation symbols resulting in a frequency domain symbol block. This block is fed to an N-point inverse discrete Fourier transform (105) (N>M) thereby generating a time domain transmit signal. In addition, the transmitter (200) comprises a phase rotation processor (201) which phase rotates the input modulation symbols in multi-symbol intervals. The phase rotations applied within each interval are constrained in accordance with a first phase rotation constraint requirement whereas the phase rotations between consecutive symbols belonging to different intervals are constrained in accordance with a different phase rotation constraint requirement. The invention may allow interference mitigation by reducing alignment between quadrature channels of the transmitter and interferers.

公开(公告)号：WO2007040952A2

公开(公告)日：2007-04-12

申请号：PCT/US2006036029

申请日：2006-09-14

Applicant: MOTOROLA INC ,  WHINNETT NICK W

Inventor： WHINNETT NICK W

IPC: H04B1/38 ,  H04L27/26

CPC classification number: H04L27/2621 ,  H04L27/2636

Abstract: A transmitter comprises functionality (101) for receiving a sequence of input modulation symbols. An M-point discrete Fourier transform (105) is applied to the block of input modulation symbols resulting in a frequency domain symbol block. This block is fed to an N-point inverse discrete Fourier transform (105) (N>M) thereby generating a time domain transmit signal. In addition, the transmitter (200) comprises a phase rotation processor (201) which phase rotates the input modulation symbols in multi-symbol intervals. The phase rotations applied within each interval are constrained in accordance with a first phase rotation constraint requirement whereas the phase rotations between consecutive symbols belonging to different intervals are constrained in accordance with a different phase rotation constraint requirement. The invention may allow interference mitigation by reducing alignment between quadrature channels of the transmitter and interferers.

Abstract translation: 发射机包括用于接收输入调制符号序列的功能（101）。 将M点离散付里叶变换（105）应用于导致频域符号块的输入调制符号块。 该块被馈送到N点离散傅立叶逆变换（105）（N> M），从而产生时域发射信号。 另外，发射机（200）包括相位旋转处理器（201），该相位旋转处理器以多符号间隔相位旋转输入的调制符号。 在每个间隔内施加的相位旋转根据第一相旋转约束要求被约束，而属于不同间隔的连续符号之间的相位旋转根据不同的相位旋转约束要求被约束。 本发明可以通过减少发射机的正交信道和干扰源之间的对准来允许干扰减轻。

公开(公告)号：WO2006055475A3

公开(公告)日：2007-01-11

申请号：PCT/US2005041154

申请日：2005-11-10

Applicant: MOTOROLA INC ,  GHOSH AMITAVA ,  RATASUK RAPEEPAT ,  WHINNETT NICK W

Inventor： GHOSH AMITAVA ,  RATASUK RAPEEPAT ,  WHINNETT NICK W

IPC: H04B7/00 ,  H04W52/12 ,  H04W52/28

CPC classification number: H04W52/12 ,  H04W52/286

Abstract: Various embodiments are described to address the need for an apparatus and method of outer-loop power control for enhanced uplink communications that address some of the outstanding problems in the prior art. Generally expressed, a base site (131), while a first uplink channel is inactive, monitors packet retransmissions to generate an uplink quality indicator. Here, packet retransmissions refers to the number of packet retransmissions used by a remote unit (101) to send packets to a base transceiver station (111) via at least one other uplink channel. Also, while the first uplink channel is inactive, the base site adjusts a signal-to-interference ratio (SIR) target for the first uplink channel based on the uplink quality indicator. Then, when the first uplink channel becomes active, the base site begins power controlling the first uplink channel using the SIR target.

Abstract translation: 描述了各种实施例以解决对用于解决现有技术中的一些突出问题的用于增强上行链路通信的外环功率控制的装置和方法的需要。 通常表示基站（131），而第一上行链路信道不活动，监视分组重传以生成上行链路质量指示符。 这里，分组重传是指远程单元（101）经由至少一个其他上行链路信道将分组发送到基站收发器（111）的分组重传次数。 此外，当第一上行链路信道不活动时，基站将基于上行链路质量指示符来调整第一上行链路信道的信号干扰比（SIR）目标。 然后，当第一上行链路信道变为有效时，基站开始使用SIR目标对第一上行链路信道进行功率控制。

公开(公告)号：WO2005022809A3

公开(公告)日：2005-05-19

申请号：PCT/US2004027340

申请日：2004-08-23

Applicant: MOTOROLA INC ,  GHOSH AMITAVA ,  LOVE ROBERT T ,  WHINNETT NICK W

Inventor： GHOSH AMITAVA ,  LOVE ROBERT T ,  WHINNETT NICK W

IPC: H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04W36/16 ,  H04W88/06 ,  H04W88/10 ,  H04Q7/00

CPC classification number: H04L1/1812 ,  H04L1/0003 ,  H04L1/0007 ,  H04L1/0009 ,  H04W74/0866

Abstract: During a random access communication opportunity (12), user equipment (20) utilizes either or both of an adaptive modulation and coding-based communication protocol (26) and an HARQ-based communication protocol (27) to achieve improved performance. This can avoid the need to establish dedicated channels (13) to support the required communications. In one embodiment, a plurality of adaptive modulation and coding-based communication protocols are provided with a given protocol being selected as a function of one or more governing criteria. For example, the protocol can be selected as a function of a quality condition of the communication path, as a function of a memory buffer, and so forth.

Abstract translation: 在随机接入通信机会（12）期间，用户设备（20）利用基于自适应调制和基于编码的通信协议（26）和基于HARQ的通信协议（27）中的任一个或两者来实现改进的性能。 这可以避免需要建立专用信道（13）来支持所需的通信。 在一个实施例中，提供多个基于自适应调制和编码的通信协议，其中给定协议根据一个或多个管理标准被选择。 例如，可以根据通信路径的质量条件来选择协议，根据存储器缓冲器等等来选择协议。

公开(公告)号：WO2009148749A3

公开(公告)日：2010-03-04

申请号：PCT/US2009042803

申请日：2009-05-05

Applicant: MOTOROLA INC ,  BARVE SATYEN D ,  TONG FEI ,  WHINNETT NICK W

Inventor： BARVE SATYEN D ,  TONG FEI ,  WHINNETT NICK W

IPC: H04W24/10 ,  H04W72/12

CPC classification number: H04W72/1284 ,  H04W24/00 ,  H04W72/1231 ,  H04W72/1247

Abstract: A wireless communication system comprises a scheduler for scheduling air interface data for a plurality of user equipments. A control channel scheduler (211) estimates a scheduling time for a scheduling of air interface data to a first user equipment (101) of the plurality of user equipments (101-105) in response to a current scheduling metric for the first user equipment and a reporting processor (213) generates a channel quality reporting request for the user equipment in response to the scheduling time. The channel quality reporting request is transmitted to the user equipment which proceeds to provide channel quality reports in accordance with the request. The approach may improve performance in a wireless communication system by reducing channel reporting resource requirements while still providing channel quality information when needed. The invention may be particularly suitable for a Long Term Evolution 3rd Generation Partnership Project cellular communication system or an IEEE 802.16 wireless communication system.

Abstract translation: 无线通信系统包括：调度器，用于为多个用户设备调度空中接口数据。 控制信道调度器（211）响应于第一用户设备的当前调度度量，估计用于对多个用户设备（101-105）中的第一用户设备（101）的空中接口数据的调度的调度时间，以及 报告处理器（213）响应于调度时间生成用户设备的信道质量报告请求。 信道质量报告请求被发送到用户设备，继续根据请求提供信道质量报告。 该方法可以通过减少信道报告资源需求来提高无线通信系统的性能，同时在需要时仍提供信道质量信息。 本发明可以特别适用于长期演进第三代合作伙伴计划蜂窝通信系统或IEEE 802.16无线通信系统。

公开(公告)号：WO2009148749A2

公开(公告)日：2009-12-10

申请号：PCT/US2009/042803

申请日：2009-05-05

Applicant: MOTOROLA, INC. ,  BARVE, Satyen, D. ,  TONG, Fei ,  WHINNETT, Nick, W.

Inventor： BARVE, Satyen, D. ,  TONG, Fei ,  WHINNETT, Nick, W.

IPC: H04W24/10 ,  H04W72/12

CPC classification number: H04W72/1284 ,  H04W24/00 ,  H04W72/1231 ,  H04W72/1247

Abstract: A wireless communication system comprises a scheduler for scheduling air interface data for a plurality of user equipments. A control channel scheduler (211) estimates a scheduling time for a scheduling of air interface data to a first user equipment (101) of the plurality of user equipments (101-105) in response to a current scheduling metric for the first user equipment and a reporting processor (213) generates a channel quality reporting request for the user equipment in response to the scheduling time. The channel quality reporting request is transmitted to the user equipment which proceeds to provide channel quality reports in accordance with the request. The approach may improve performance in a wireless communication system by reducing channel reporting resource requirements while still providing channel quality information when needed. The invention may be particularly suitable for a Long Term Evolution 3rd Generation Partnership Project cellular communication system or an IEEE 802.16 wireless communication system.

Abstract translation: 无线通信系统包括：调度器，用于为多个用户设备调度空中接口数据。 控制信道调度器（211）响应于第一用户设备的当前调度度量，估计用于对多个用户设备（101-105）中的第一用户设备（101）的空中接口数据的调度的调度时间，以及 报告处理器（213）响应于调度时间生成用户设备的信道质量报告请求。 信道质量报告请求被发送到用户设备，继续根据请求提供信道质量报告。 该方法可以通过减少信道报告资源需求来提高无线通信系统的性能，同时在需要时仍提供信道质量信息。 本发明可以特别适用于长期演进第三代合作伙伴计划蜂窝通信系统或IEEE 802.16无线通信系统。

公开(公告)号：WO2007053616A2

公开(公告)日：2007-05-10

申请号：PCT/US2006/042462

申请日：2006-10-31

Applicant: MOTOROLA, INC. ,  WHINNETT, Nick W.

Inventor： WHINNETT, Nick W.

IPC: H04J1/00

CPC classification number: H04B1/1027 ,  H04L1/1692 ,  H04L2001/125

Abstract: An apparatus comprises a detection processor (203) for detecting retransmission feedback messages in response to a detection threshold. A threshold processor (207) determines the detection threshold in response to a noise estimate generated by a noise processor (209). The noise processor comprises a sub-symbol generator (211) which divides a retransmission feedback symbol into a plurality of sub-symbols. Each of the sub-symbols is despread by a spreading code with a lower spreading factor than a spreading factor of the retransmission feedback symbol. A difference generator (213) then generates difference symbol values between the plurality of sub-symbols and a noise estimator (215) generates the noise estimate in response to the difference symbol values, for example by determining the variance of the difference symbol values. An improved noise estimate may be determined resulting in improved detection performance and thus improved retransmission performance.

Abstract translation: 一种装置包括用于响应于检测阈值来检测重传反馈消息的检测处理器（203）。 阈值处理器（207）响应由噪声处理器（209）产生的噪声估计来确定检测阈值。 噪声处理器包括将重传反馈符号分成多个子符号的子符号发生器（211）。 每个子符号由具有比重传反馈符号的扩频因子低的扩频因子的扩频码来解扩。 差分生成器（213）然后生成多个子符号之间的差分符号值，并且噪声估计器（215）响应于差分符号值例如通过确定差分符号值的方差来生成噪声估计。 可以确定改进的噪声估计值，从而改善检测性能并因此改善重传性能。

公开(公告)号：WO2006036355A1

公开(公告)日：2006-04-06

申请号：PCT/US2005/029264

申请日：2005-08-17

Applicant: MOTOROLA INC. ,  LOVE, Robert T. ,  GHOSH, Amitava ,  RATASUK, Rapeepat ,  WHINNETT, Nick W.

Inventor： LOVE, Robert T. ,  GHOSH, Amitava ,  RATASUK, Rapeepat ,  WHINNETT, Nick W.

IPC: H04Q7/38

CPC classification number: H04W72/0406 ,  H04W36/18 ,  H04W84/042 ,  H04W88/08

Abstract: A cellular communication system (100) comprises a first base station (103) which schedules resource for a user equipment (101). When receiving a resource allocation message, the user equipment (101) transmits a first message comprising a transmit indication to a plurality of base stations (103-109) wherein the transmit indication is indicative of a subsequent transmission of a second message. The user equipment (101) then proceeds to determine a transmit format for the second message; and to transmit the second message to the plurality of base stations (103-109) using the transmit format. When receiving the transmit indication, the plurality of base stations (103-109) proceed to configure their receivers to receive the second message. The first message may be transmitted in a control channel and the second message may be transmitted in a user data channel.

Abstract translation: 蜂窝通信系统（100）包括对用户设备（101）调度资源的第一基站（103）。 当接收到资源分配消息时，用户设备（101）向多个基站（103-109）发送包括发送指示的第一消息，其中发送指示指示第二消息的后续发送。 用户设备（101）然后继续确定第二消息的发送格式; 并且使用发送格式将所述第二消息发送到所述多个基站（103-109）。 当接收到发送指示时，多个基站（103-109）继续配置其接收机以接收第二消息。 可以在控制信道中发送第一消息，并且可以在用户数据信道中发送第二消息。

公开(公告)号：WO2005022809A2

公开(公告)日：2005-03-10

申请号：PCT/US2004/027340

申请日：2004-08-23

Applicant: MOTOROLA, INC. , A CORPORATION OF THE STATE OF DELAWARE ,  GHOSH, Amitava, ,  LOVE, Robert T., ,  WHINNETT, Nick W.,

Inventor： GHOSH, Amitava, ,  LOVE, Robert T., ,  WHINNETT, Nick W.,

IPC: H04L

CPC classification number: H04L1/1812 ,  H04L1/0003 ,  H04L1/0007 ,  H04L1/0009 ,  H04W74/0866

Abstract: During a random access communication opportunity (12), user equipment (20) utilizes either or both of an adaptive modulation and coding-based communication protocol (26) and an HARQ-based communication protocol (27) to achieve improved performance. This can avoid the need to establish dedicated channels (13) to support the required communications. In one embodiment, a plurality of adaptive modulation and coding-based communication protocols are provided with a given protocol being selected as a function of one or more governing criteria. For example, the protocol can be selected as a function of a quality condition of the communication path, as a function of a memory buffer, and so forth.

Abstract translation: 在随机接入通信机会（12）期间，用户设备（20）利用自适应调制和基于编码的通信协议（26）中的一者或两者以及基于HARQ的通信协议（27）来实现改进的性能。 这可以避免建立专用通道（13）来支持所需的通信。 在一个实施例中，提供了多个基于自适应调制和编码的通信协议，其中给定协议被选择为一个或多个控制标准的函数。 例如，作为通信路径的质量状态的函数，可以根据存储器缓冲器等来选择协议。

公开(公告)号：WO2010014424A1

公开(公告)日：2010-02-04

申请号：PCT/US2009/050837

申请日：2009-07-16

Applicant: MOTOROLA, INC. ,  WANG, Fan ,  BENES, Stanley, J. ,  GHOSH, Amitava ,  SANKARAN, Chandrasekar ,  WILSON, Timothy, J. ,  TONG, Fei ,  WHINNETT, Nick, W.

Inventor： WANG, Fan ,  BENES, Stanley, J. ,  GHOSH, Amitava ,  SANKARAN, Chandrasekar ,  WILSON, Timothy, J. ,  TONG, Fei ,  WHINNETT, Nick, W.

IPC: H04B7/04

CPC classification number: H04B7/0452

Abstract: A method, system and communication network for transmitting information signals via uplink (UL) collaborative SDMA, in a wireless communication system (100). A base station receiver (107) estimates (502) a channel gain associated with the transmission path(s) of each of multiple users (101-103) and keeps (503) a matrix of normalized covariance between users. Based on the estimated channel gain and the normalized covariance, a ULS utility (110) is able to compute (504) channel capacity. Based on capacity estimates of (1) the multiplexed user signals and (2) the individual user signals, signals are (505) either multiplexed for UL SDMA or are transmitted individually. An optimal selection of multiplexed signals may be based upon: (1) a cross user interference measurement; and (2) a selection mechanism based on eigen-decomposition techniques. The ULS utility enables a UL scheduler (113) to pair information signals with clear spatial distinction and minimal correlation, based on capacity evaluations.

Abstract translation: 一种用于在无线通信系统（100）中经由上行链路（UL）协作SDMA发送信息信号的方法，系统和通信网络。 基站接收机（107）估计（502）与多个用户（101-103）中的每一个的传输路径相关联的信道增益，并且保持（503）用户之间的归一化协方差矩阵。 基于估计的信道增益和归一化协方差，ULS实用程序（110）能够计算（504）信道容量。 基于（1）多路复用用户信号的容量估计和（2）各个用户信号，信号是（505）被复用用于UL SDMA或单独发送。 复用信号的最佳选择可以基于：（1）交叉用户干扰测量; 和（2）基于特征分解技术的选择机制。 ULS实用程序使得UL调度器（113）能够基于容量评估将具有清晰的空间区别和最小相关性的信息信号进行配对。