公开(公告)号：US20060099915A1

公开(公告)日：2006-05-11

申请号：US11284285

申请日：2005-11-21

申请人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan ,  Frank Lane ,  Prashanth Hande

发明人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan ,  Frank Lane ,  Prashanth Hande

IPC分类号： H04B7/00

CPC分类号： H04B7/0604 ,  H01Q3/24 ,  H01Q3/2605 ,  H04B7/061 ,  H04B7/0691 ,  H04B7/0805 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/006 ,  H04W52/42

摘要： Transmit and/or receive diversity is achieved using multiple antennas. In some embodiments, a single transmitter chain within a wireless terminal is coupled over time to a plurality of transmit antennas. At any given time, a controllable switching module couples the single transmitter chain to one the plurality of transmit antennas. Over time, the switching module couples the output signals from the single transmitter chain to different transmit antennas. Switching decisions are based upon predetermined information, dwell information, and/or channel condition feedback information. Switching is performed on some dwell and/or channel estimation boundaries. In some OFDM embodiments, each of multiple transmitter chains is coupled respectively to a different transmit antenna. Information to be transmitted is mapped to a plurality of tones. Different subsets of tones are formed for and transmitted through different transmit chain/antenna sets simultaneously. The balance of tones allocated to the subsets for each antenna are changed as a function of predetermined information, dwell information, and/or channel condition feedback information.

公开(公告)号：US20050277429A1

公开(公告)日：2005-12-15

申请号：US10865616

申请日：2004-06-10

申请人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Prashanth Hande

发明人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Prashanth Hande

IPC分类号： H04W68/00 ,  H04W68/02 ,  H04Q7/20

CPC分类号： H04W68/025 ,  Y02D70/00

摘要： Methods and apparatus for efficient two-stage paging wireless communications systems are described. Wireless terminals are assigned to paging groups. A few first paging message information bits are modulated (using non-coherent modulation) into a first paging signal and communicated from a base station to wireless terminals. WTs wake-up, receive the first paging signal and quickly ascertain whether its paging group should expect a second paging signal, if so, the WT is operated to receive the second paging signal; otherwise, the WT goes back to sleep conserving power. The base station modulates (using coherent modulation) a number of second message information bits into a second paging signal and transmits the signal to WTs. From the information in first and second paging signals, a WT can determine that it is the paged WT and process the paging instructions. The intended paged WT can transmit an acknowledgement signal on a dedicated uplink resource.

摘要翻译： 描述了用于有效的两阶段寻呼无线通信系统的方法和装置。 无线终端被分配给寻呼组。 几个第一寻呼消息信息比特被调制（使用非相干调制）到第一寻呼信号中并从基站传送到无线终端。 WT唤醒，接收第一个寻呼信号，并快速确定其寻呼组是否应该预期第二个寻呼信号，如果是，则操作WT接收第二寻呼信号; 否则，WT回去睡眠节省电力。 基站将多个第二消息信息比特（使用相干调制）调制成第二寻呼信号，并将该信号发送给WT。 根据第一和第二寻呼信号中的信息，WT可以确定它是寻呼WT并处理寻呼指令。 预期的寻呼WT可以在专用上行链路资源上发送确认信号。

公开(公告)号：US08989084B2

公开(公告)日：2015-03-24

申请号：US11549604

申请日：2006-10-13

申请人： Prashanth Hande ,  Arnab Das ,  Junyi Li ,  Sundeep Rangan ,  Rajiv Laroia

发明人： Prashanth Hande ,  Arnab Das ,  Junyi Li ,  Sundeep Rangan ,  Rajiv Laroia

IPC分类号： H04W4/00 ,  H04W16/08 ,  H04W16/06

CPC分类号： H04W16/08 ,  H04B17/24 ,  H04B17/382 ,  H04W4/06 ,  H04W16/06 ,  H04W24/10 ,  H04W36/20 ,  H04W52/143 ,  H04W52/343 ,  H04W52/40 ,  H04W72/082

摘要： Methods and apparatus are described where loading information regarding loading conditions at a neighboring base station is received at a first base station and then communicated, e.g., broadcast, by the first base station to mobiles within the cell in which the first base station is located. Since the neighbor base station's loading information is being communicated to a mobile currently connected to the first base station via a reliable communications channel of the first base station, the mobile can be expected to be able to reliably recover loading factor information corresponding to not only the first base station but to the neighboring base station. By utilizing such loading factor information, the mobile can generate an improved uplink interference report. The first base station receives such interference reports from wireless terminals in its cell, facilitating efficient resource allocation and interference control.

摘要翻译： 描述了在第一基站处接收关于相邻基站处的负载条件的信息的装置，然后由第一基站传送（例如，广播）到第一基站所在的小区内的移动台。 由于相邻基站的载入信息通过第一基站的可靠通信信道被传送到当前连接到第一基站的移动台，所以可以期望移动台能够可靠地恢复与不仅仅是 第一个基站，但是到邻近的基站。 通过利用这种负载因子信息，移动台可以产生改进的上行链路干扰报告。 第一基站从其小区中的无线终端接收到这种干扰报告，有利于高效的资源分配和干扰控制。

公开(公告)号：US07711377B2

公开(公告)日：2010-05-04

申请号：US10865616

申请日：2004-06-10

申请人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Prashanth Hande

发明人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Prashanth Hande

IPC分类号： H04Q7/20

CPC分类号： H04W68/025 ,  Y02D70/00

摘要： Methods and apparatus for efficient two-stage paging wireless communications systems are described. Wireless terminals are assigned to paging groups. A few first paging message information bits are modulated (using non-coherent modulation) into a first paging signal and communicated from a base station to wireless terminals. WTs wake-up, receive the first paging signal and quickly ascertain whether its paging group should expect a second paging signal, if so, the WT is operated to receive the second paging signal; otherwise, the WT goes back to sleep conserving power. The base station modulates (using coherent modulation) a number of second message information bits into a second paging signal and transmits the signal to WTs. From the information in first and second paging signals, a WT can determine that it is the paged WT and process the paging instructions. The intended paged WT can transmit an acknowledgement signal on a dedicated uplink resource.

摘要翻译： 描述了用于有效的两阶段寻呼无线通信系统的方法和装置。 无线终端被分配给寻呼组。 几个第一寻呼消息信息比特被调制（使用非相干调制）到第一寻呼信号中并从基站传送到无线终端。 WT唤醒，接收第一个寻呼信号，并快速确定其寻呼组是否应该预期第二个寻呼信号，如果是，则操作WT接收第二寻呼信号; 否则，WT回去睡眠节省电力。 基站将多个第二消息信息比特（使用相干调制）调制成第二寻呼信号，并将该信号发送给WT。 根据第一和第二寻呼信号中的信息，WT可以确定它是寻呼WT并处理寻呼指令。 预期的寻呼WT可以在专用上行链路资源上发送确认信号。

公开(公告)号：US07420939B2

公开(公告)日：2008-09-02

申请号：US10641308

申请日：2003-08-13

申请人： Rajiv Laroia ,  Junyi Li ,  John L. Fan ,  Sundeep Rangan ,  Prashanth Hande

发明人： Rajiv Laroia ,  Junyi Li ,  John L. Fan ,  Sundeep Rangan ,  Prashanth Hande

IPC分类号： H04B7/185

CPC分类号： H04W52/08 ,  H04L27/2608 ,  H04L27/362 ,  H04W52/56 ,  H04W52/60

摘要： The present invention involves apparatus and methods to perform wireless terminal transmission power control. The invention uses novel and highly efficient methods to: convey power control information, specify power control level adjustments, recognize power control information, limit interference in the power control signaling, and recognize corrupted power control signaling, thus conserving wireless terminal energy and minimizing power control signaling and associated bandwidth. Base stations send analog power control command signals, with a continuous range of control levels, to wireless terminals for transmission power adjustments. Power control signals include two components which can be used to convey information, e.g., power control commands, signal quality, device identity information. For zero power adjustment, the control component signal is not transmitted. For a non-zero adjustment, power control signals are sent using control ranges and limits, known to the base station and wireless terminal, with the scaling adjusted or synchronized based upon feedback information.

摘要翻译： 本发明涉及执行无线终端传输功率控制的装置和方法。 本发明使用新颖且高效的方法：传送功率控制信息，指定功率控制电平调整，识别功率控制信息，限制功率控制信令中的干扰，并识别损坏的功率控制信令，从而节省无线终端能量并最小化功率控制 信令和相关带宽。 基站向无线终端发送模拟功率控制命令信号，具有连续的控制级别，用于传输功率调整。 功率控制信号包括可用于传送信息的两个组件，例如功率控制命令，信号质量，设备身份信息。 对于零功率调整，控制分量信号不发送。 对于非零调整，功率控制信号使用基站和无线终端已知的控制范围和限制，基于反馈信息进行缩放调整或同步。

公开(公告)号：US20050085197A1

公开(公告)日：2005-04-21

申请号：US10964885

申请日：2004-10-14

申请人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan ,  Frank Lane ,  Prashanth Hande

发明人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan ,  Frank Lane ,  Prashanth Hande

IPC分类号： H04B7/005 ,  H04B7/06 ,  H04B7/08 ,  H04L1/00 ,  H04W52/42 ,  H04B1/02 ,  H03C7/02 ,  H04B7/02 ,  H04B7/10 ,  H04L1/02

CPC分类号： H04B7/0604 ,  H01Q3/24 ,  H01Q3/2605 ,  H04B7/061 ,  H04B7/0691 ,  H04B7/0805 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/006 ,  H04W52/42

摘要： Transmit and/or receive diversity is achieved using multiple antennas. In some embodiments, a single transmitter chain within a wireless terminal is coupled over time to a plurality of transmit antennas. At any given time, a controllable switching module couples the single transmitter chain to one the plurality of transmit antennas. Over time, the switching module couples the output signals from the single transmitter chain to different transmit antennas. Switching decisions are based upon predetermined information, dwell information, and/or channel condition feedback information. Switching is performed on some dwell and/or channel estimation boundaries. In some OFDM embodiments, each of multiple transmitter chains is coupled respectively to a different transmit antenna. Information to be transmitted is mapped to a plurality of tones. Different subsets of tones are formed for and transmitted through different transmit chain/antenna sets simultaneously. The balance of tones allocated to the subsets for each antenna are changed as a function of predetermined information, dwell information, and/or channel condition feedback information.

摘要翻译： 使用多个天线实现发射和/或接收分集。 在一些实施例中，无线终端内的单个发射机链随时间耦合到多个发射天线。 在任何给定时间，可控开关模块将单个发射机链耦合到多个发射天线中的一个。 随着时间的推移，开关模块将来自单个发射机链的输出信号耦合到不同的发射天线。 切换决定基于预定信息，停留信息和/或信道条件反馈信息。 在一些驻留和/或信道估计边界上执行切换。 在一些OFDM实施例中，多个发射机链中的每一个分别耦合到不同的发射天线。 要发送的信息被映射到多个音调。 为不同的发射链/天线组同时形成和发送不同的音调子集。 分配给每个天线的子集的音调的平衡作为预定信息，停留信息和/或信道条件反馈信息的函数而改变。

公开(公告)号：US09191840B2

公开(公告)日：2015-11-17

申请号：US11486714

申请日：2006-07-14

申请人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan ,  Prashanth Hande ,  M. Scott Corson ,  Arnab Das

发明人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan ,  Prashanth Hande ,  M. Scott Corson ,  Arnab Das

IPC分类号： H04W24/08 ,  H04B17/345 ,  H04B17/382 ,  H04W72/08

CPC分类号： H04W24/08 ,  H04B17/345 ,  H04B17/382 ,  H04W72/08

摘要： A wireless terminal receives a broadcast uplink interference report request conveying a requested report type and/or a locally unique base station identifier. The wireless terminal receives and measures broadcast reference signals, e.g., beacon and/or pilot signals, transmitted from a plurality of base station attachment points. Specific type interference reports relate a current serving connection base station attachment point to a selected base station attachment point corresponding to the received base station identifier. Generic type interference reports relate a current serving base station connection attachment point to other unspecified base station attachment points whose broadcast reference signals have been detected by the wireless terminal. Sub-types of generic reports include summation function and maximum function reports. Timing information is sometimes used to determine report sub-type and/or sector type of the selected attachment point. The wireless terminal generates the requested report and transmits it to the current connection attachment point.

摘要翻译： 无线终端接收传送请求的报告类型和/或本地唯一的基站标识符的广播上行链路干扰报告请求。 无线终端接收并测量从多个基站附接点发送的广播参考信号，例如信标和/或导频信号。 特定类型的干扰报告将当前服务连接基站附接点与对应于所接收的基站标识符的所选择的基站附接点相关联。 通用型干扰报告将当前服务基站连接连接点与其广播参考信号已被无线终端检测到的其它未指定的基站附接点相关联。 通用报告的子类型包括求和函数和最大函数报告。 定时信息有时用于确定所选附件点的报告子类型和/或扇区类型。 无线终端生成请求的报告，并将其发送到当前的连接连接点。

公开(公告)号：US08670789B2

公开(公告)日：2014-03-11

申请号：US12730154

申请日：2010-03-23

申请人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Prashanth Hande

发明人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Prashanth Hande

IPC分类号： H04W68/02

CPC分类号： H04W68/025 ,  Y02D70/00

摘要： Methods and apparatus for efficient two-stage paging wireless communications systems are described. Wireless terminals are assigned to paging groups. A few first paging message information bits are modulated (using non-coherent modulation) into a first paging signal and communicated from a base station to wireless terminals. WTs wake-up, receive the first paging signal and quickly ascertain whether its paging group should expect a second paging signal, if so, the WT is operated to receive the second paging signal; otherwise, the WT goes back to sleep conserving power. The base station modulates (using coherent modulation) a number of second message information bits into a second paging signal and transmits the signal to WTs. From the information in first and second paging signals, a WT can determine that it is the paged WT and process the paging instructions. The intended paged WT can transmit an acknowledgement signal on a dedicated uplink resource.

摘要翻译： 描述了用于有效的两阶段寻呼无线通信系统的方法和装置。 无线终端被分配给寻呼组。 几个第一寻呼消息信息比特被调制（使用非相干调制）到第一寻呼信号中并从基站传送到无线终端。 WT唤醒，接收第一个寻呼信号，并快速确定其寻呼组是否应该预期第二个寻呼信号，如果是，则操作WT接收第二寻呼信号; 否则，WT回去睡眠节省电力。 基站将多个第二消息信息比特（使用相干调制）调制成第二寻呼信号，并将该信号发送给WT。 根据第一和第二寻呼信号中的信息，WT可以确定它是寻呼WT并处理寻呼指令。 预期的寻呼WT可以在专用上行链路资源上发送确认信号。

公开(公告)号：US20100041355A1

公开(公告)日：2010-02-18

申请号：US12606079

申请日：2009-10-26

申请人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan ,  Frank A. Lane ,  Prashanth Hande

发明人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan ,  Frank A. Lane ,  Prashanth Hande

IPC分类号： H04B1/04

CPC分类号： H04B7/0604 ,  H01Q3/24 ,  H01Q3/2605 ,  H04B7/061 ,  H04B7/0691 ,  H04B7/0805 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/006 ,  H04W52/42

摘要： Transmit and/or receive diversity is achieved using multiple antennas. In some embodiments, a single transmitter chain within a wireless terminal is coupled over time to a plurality of transmit antennas. At any given time, a controllable switching module couples the single transmitter chain to one the plurality of transmit antennas. Over time, the switching module couples the output signals from the single transmitter chain to different transmit antennas. Switching decisions are based upon predetermined information, dwell information, and/or channel condition feedback information. Switching is performed on some dwell and/or channel estimation boundaries. In some OFDM embodiments, each of multiple transmitter chains is coupled respectively to a different transmit antenna. Information to be transmitted is mapped to a plurality of tones. Different subsets of tones are formed for and transmitted through different transmit chain/antenna sets simultaneously. The balance of tones allocated to the subsets for each antenna are changed as a function of predetermined information, dwell information, and/or channel condition feedback information.

摘要翻译： 使用多个天线实现发射和/或接收分集。 在一些实施例中，无线终端内的单个发射机链随时间耦合到多个发射天线。 在任何给定时间，可控开关模块将单个发射机链耦合到多个发射天线中的一个。 随着时间的推移，开关模块将来自单个发射机链的输出信号耦合到不同的发射天线。 切换决定基于预定信息，停留信息和/或信道条件反馈信息。 在一些驻留和/或信道估计边界上执行切换。 在一些OFDM实施例中，多个发射机链中的每一个分别耦合到不同的发射天线。 要发送的信息被映射到多个音调。 为不同的发射链/天线组同时形成和发送不同的音调子集。 分配给每个天线的子集的音调的平衡作为预定信息，停留信息和/或信道条件反馈信息的函数而改变。

公开(公告)号：US20070253355A1

公开(公告)日：2007-11-01

申请号：US11549604

申请日：2006-10-13

申请人： Prashanth Hande ,  Arnab Das ,  Junyi Li ,  Sundeep Rangan ,  Rajiv Laroia

发明人： Prashanth Hande ,  Arnab Das ,  Junyi Li ,  Sundeep Rangan ,  Rajiv Laroia

IPC分类号： H04Q7/00

CPC分类号： H04W16/08 ,  H04B17/24 ,  H04B17/382 ,  H04W4/06 ,  H04W16/06 ,  H04W24/10 ,  H04W36/20 ,  H04W52/143 ,  H04W52/343 ,  H04W52/40 ,  H04W72/082

摘要： Methods and apparatus are described where loading information regarding loading conditions at a neighboring base station is received at a first base station and then communicated, e.g., broadcast, by the first base station to mobiles within the cell in which the first base station is located. Since the neighbor base station's loading information is being communicated to a mobile currently connected to the first base station via a reliable communications channel of the first base station, the mobile can be expected to be able to reliably recover loading factor information corresponding to not only the first base station but to the neighboring base station. By utilizing such loading factor information, the mobile can generate an improved uplink interference report. The first base station receives such interference reports from wireless terminals in its cell, facilitating efficient resource allocation and interference control.

摘要翻译： 描述了在第一基站处接收关于相邻基站处的负载条件的信息的装置，然后由第一基站传送（例如，广播）到第一基站所在的小区内的移动台。 由于相邻基站的载入信息通过第一基站的可靠通信信道被传送到当前连接到第一基站的移动台，所以可以期望移动台能够可靠地恢复与不仅仅是 第一个基站，但是到邻近的基站。 通过利用这种负载因子信息，移动台可以产生改进的上行链路干扰报告。 第一基站从其小区中的无线终端接收到这种干扰报告，有利于高效的资源分配和干扰控制。