公开(公告)号：US09215036B2

公开(公告)日：2015-12-15

申请号：US12771872

申请日：2010-04-30

申请人： Ying Li ,  Zhouyue Pi ,  Baowei Ji ,  Farooq Khan ,  Jung Je Son

发明人： Ying Li ,  Zhouyue Pi ,  Baowei Ji ,  Farooq Khan ,  Jung Je Son

IPC分类号： H04M1/66 ,  H04M1/68 ,  H04L1/00 ,  H04W48/10 ,  H04W48/02 ,  H04W84/04

CPC分类号： H04L1/0045 ,  H04L1/0061 ,  H04W48/02 ,  H04W48/10 ,  H04W84/047

摘要： A system and method for identifying the accessibility of a base station in a communication system. The system includes at least one Closed Subscriber Group (CSG)-Open (hybrid) base station. The base station can apply a base station identifier, such as a CSG identifier, as a cyclic redundancy check (CRC) mask to a first broadcast channel communication and can include the base station identifier in the payload of, or as a CRC mask applied to, a second broadcast channel communication. A mobile station can determine from the base station identifier in the first broadcast communication if the mobile station is a member authorized closed access to the base station. The mobile station can determine from the base station identifier in second first broadcast communication if the mobile station is a non-member authorized open access to the base station.

摘要翻译： 一种用于识别通信系统中基站的可访问性的系统和方法。 该系统包括至少一个封闭用户组（CSG） - 开（混合）基站。 基站可以将诸如CSG标识符的基站标识符作为循环冗余校验（CRC）掩码应用于第一广播信道通信，并且可以将基站标识符包括在应用于 ，第二广播频道通信。 移动台可以从第一广播通信中的基站标识符确定移动台是否是被授权的对基站的封闭访问。 如果移动台是对基站的非会员授权的开放接入，则移动台可以从第二第一广播通信中的基站标识符确定。

公开(公告)号：US08843129B2

公开(公告)日：2014-09-23

申请号：US12961334

申请日：2010-12-06

申请人： Ying Li ,  Zhouyue Pi ,  Sudhir Ramakrishna ,  Baowei Ji

发明人： Ying Li ,  Zhouyue Pi ,  Sudhir Ramakrishna ,  Baowei Ji

IPC分类号： H04W24/00 ,  H04W36/00 ,  H04W84/04

CPC分类号： H04W36/0061 ,  H04W84/045

摘要： A subscriber station can efficiently determine an accessible base station by scanning a subset of base stations based on an optimized list received from a serving base station. The subscriber station includes a white list that contains information regarding a number of closed subscriber group (CSG) base stations to which the subscriber station is subscribed. The subscriber station can transmit a request message that includes one or more of: indication of whether the detected identifier of the femto base station is in the whitelist or not; and its location information. In response, the base station can send a message that includes the nearby femtocells and whether the femtocell is accessible or inaccessible to the subscriber station. The femto base station can be designed to be in transmission off mode when none of its subscribers is in its coverage. The serving base station can select a set of the accessible femtocells to the subscriber station, and request the selected femtocells to monitor an uplink signaling of the subscriber station so that the femtocell can be awaken when the femtocell is in transmission off mode or be aware that the subscriber station is in proximity, if the uplink signaling is detected.

摘要翻译： 用户站可以基于从服务基站接收到的优化列表来扫描基站的子集，来有效地确定可访问的基站。 用户站包括白名单，其包含关于用户台订阅的封闭用户组（CSG）基站的数量的信息。 用户台可以发送包括以下中的一个或多个的请求消息：毫微微基站的检测到的标识符是否在白名单中的指示; 及其位置信息。 作为响应，基站可以发送包括附近的毫微微小区的消息以及毫微微小区是否可访问或用户台不可访问。 当毫微微基站的用户没有覆盖时，毫微微基站可以被设计为处于传输关闭模式。 服务基站可以向用户台选择一组可访问的毫微微小区，并且请求所选择的毫微微小区监视用户站的上行链路信令，以便当毫微微小区处于传输关闭模式时可以唤醒毫微微小区，或者意识到 如果检测到上行链路信令，则用户站处于接近状态。

公开(公告)号：US08473802B2

公开(公告)日：2013-06-25

申请号：US12813183

申请日：2010-06-10

申请人： Baowei Ji ,  Youngbin Chang

发明人： Baowei Ji ,  Youngbin Chang

IPC分类号： H04L1/18

CPC分类号： H04L1/1887 ,  H04L1/1822 ,  H04L1/1832 ,  H04L1/1835 ,  H04L1/1851 ,  H04L47/27 ,  H04L47/30

摘要： An Automatic Repeat reQuest (ARQ) transmitter for use in a wireless communication system and method for its operation are provided. The method includes determining unutilized capacity of an ARQ receiver buffer in an ARQ receiver, determining if the ARQ receiver buffer can support an ARQ block to be transmitted based on the determined unutilized capacity of the ARQ receiver buffer, and if it is determined that the ARQ receiver buffer can support the ARQ block to be transmitted, transmitting the ARQ block to the ARQ receiver.

摘要翻译： 提供了一种用于无线通信系统的自动重发请求（ARQ）发送机及其操作方法。 该方法包括确定ARQ接收机中的ARQ接收机缓冲器的未使用容量，确定ARQ接收机缓冲器是否可以基于所确定的ARQ接收机缓冲器的未使用容量来支持要发送的ARQ块，并且如果确定ARQ 接收缓冲区可以支持发送ARQ块，将ARQ块发送到ARQ接收机。

公开(公告)号：US08446893B2

公开(公告)日：2013-05-21

申请号：US11957292

申请日：2007-12-14

申请人： Baowei Ji ,  William Joseph Semper

发明人： Baowei Ji ,  William Joseph Semper

IPC分类号： H04J3/06

CPC分类号： H04B7/2696 ,  H04W56/0015 ,  H04W56/0045 ,  H04W56/006 ,  H04W92/20

摘要： A method for synchronizing overlapping cells covered by different base stations include obtaining a propagation delay between a first base station and a second base station, scheduling by the first base station a selected one of first users located in a first cell covered by the first base station to transmit a first data packet which is a part of a transmission data frame, transmitting at the selected one the first users a transmission offset indicating the difference in a time domain between the beginning of the transmission data frame and the first data packet, in response to the reception of the first data packet, recording a reception offset at a selected one of second users located in a second cell covered by the second base station, the reception offset indicating the difference in time domain between the beginning of a reception data frame and the first data packet, transmitting at the selected one of the second users the reception offset to the second base station, calculating at the second base station a frame slide by adding the transmission offset and the propagation delay, and subtracting the reception offset, and synchronizing the first cell and the second cell based upon the calculated frame slide.

摘要翻译： 用于使由不同基站覆盖的重叠小区同步的方法包括获得第一基站和第二基站之间的传播延迟，由第一基站调度位于由第一基站覆盖的第一小区中的所选择的一个第一用户 发送作为发送数据帧的一部分的第一数据分组，以选择的方式发送第一用户发送指示发送数据帧的开始与第一数据分组之间的时间差的发送偏移，作为响应 在第一数据分组的接收中，在位于第二基站所覆盖的第二小区中的第二用户的所选择的一个中记录接收偏移，接收偏移指示接收数据帧开始之间的时域的差异， 第一数据分组，在所选择的一个第二用户发送对第二基站的接收偏移量，计算 在第二基站通过添加传输偏移和传播延迟并减去接收偏移，并且基于计算出的帧幻灯片使第一小区和第二小区同步，进行帧幻灯片。

公开(公告)号：US08150414B2

公开(公告)日：2012-04-03

申请号：US12153359

申请日：2008-05-16

申请人： Baowei Ji ,  David Mazzarese ,  Jinxia Cheng ,  Cheng Shan

发明人： Baowei Ji ,  David Mazzarese ,  Jinxia Cheng ,  Cheng Shan

IPC分类号： H04W72/00 ,  H04B7/00

CPC分类号： H04W16/14 ,  H04W48/04

摘要： Methods for maintaining continuing existence of a next-in-line protecting device in a beacon network including a primary protecting device (PPD), the next-in-line protecting device (NPD) and a plurality of secondary protecting devices (SPDs). In one method, a subset of the plurality of secondary protecting devices periodically transmit beacon messages to the primary protecting device. When the next-in-line protecting device disappears, the primary protecting device selects a secondary protecting device from among the secondary protecting devices that have transmitted the beacon messages within a certain period to be a new next-in-line protecting device. In another method, the plurality of secondary protecting devices continuously monitor an existence of the next-in-line protecting device. When the next-in-line protecting device disappears for a certain period of time, a subset of the plurality of secondary protecting devices may contend to be a new next-in-line protecting device. In still another method, the primary protecting device transmits a beacon message to the plurality of secondary protecting devices to indicate whether a next-in-line protecting device is required. When a next-in-line protecting device is required, a subset of the secondary protecting devices contend to be a new next-in-line protecting device.

摘要翻译： 在包括主保护装置（PPD），下一代在线保护装置（NPD）和多个次级保护装置（SPD）的信标网络中维持下一个在线保护装置的持续存在的方法。 在一种方法中，多个辅助保护设备的子集周期性地向主保护设备发送信标消息。 当下一代在线保护装置消失时，主保护装置从在一定时间段内发送了信标消息的辅助保护装置中选择二次保护装置成为新的下一个在线保护装置。 在另一种方法中，多个辅助保护装置连续监视下一个在线保护装置的存在。 当下一个在线保护装置消失一段时间时，多个次级保护装置的子集可以竞争成为新的在线保护装置。 在另一种方法中，主保护设备向多个辅助保护设备发送信标消息以指示是否需要下一个在线保护设备。 当需要下一个在线保护装置时，辅助保护装置的子集可能是新的下一个在线保护装置。

公开(公告)号：US20120014308A1

公开(公告)日：2012-01-19

申请号：US12914755

申请日：2010-10-28

申请人： Ying Li ,  Zhouyue Pi ,  Baowei Ji ,  Jaehyuk Jang ,  Kaushik Josiam

发明人： Ying Li ,  Zhouyue Pi ,  Baowei Ji ,  Jaehyuk Jang ,  Kaushik Josiam

IPC分类号： H04W72/04 ,  H04W4/06 ,  H04B7/14 ,  H04W36/08

CPC分类号： H04W24/02 ,  H04W36/0072 ,  H04W84/045

摘要： Prior to a change in a configuration, such as a change to the carrier frequency, bandwidth, base station type, and so forth of the base station, the base station can inform a subscriber station to prepare for the reconfiguration by sending a message to the subscriber station. The message informs the subscriber station regarding the change in configuration and a timing regarding the change. The base station can command the subscriber station to handover to the serving base station with the new configuration or the subscriber station can choose to handover to the serving base station with the new configuration. The subscriber station can perform network reentry to the serving base station with the new configuration at the time of or after the new configuration is effective. A communication context between the stations can be maintained and the network reentry can be optimized by omitting one or more operation procedures.

摘要翻译： 在更改配置之前，例如对基站的载波频率，带宽，基站类型等的改变，基站可以通知向用户站准备重新配置，通过向 用户站。 该消息通知用户站关于配置的变化和关于改变的定时。 基站可以命令用户站用新配置切换到服务基站，或者用户台可以选择用新配置切换到服务基站。 用户站可以在新配置有效时或之后使用新配置来对服务基站执行网络重入。 可以维护站之间的通信环境，并且可以通过省略一个或多个操作过程来优化网络重入。

公开(公告)号：US08073395B2

公开(公告)日：2011-12-06

申请号：US11638301

申请日：2006-12-12

申请人： Baowei Ji ,  Yinong Ding

发明人： Baowei Ji ,  Yinong Ding

IPC分类号： H04B17/00

CPC分类号： H04L1/24 ,  H04L1/1812

摘要： A method and apparatus for channel sensing in a wireless communication device is provided. A self-signal intentionally transmitted to a first wireless device by another wireless communication device is detected in a signal received by the first wireless device. An original self-signal transmitted by the second wireless device is reconstructed from the detected self-signal. The reconstructed self-signal is then suppressed in the received signal and channel sensing is performed on the remaining signal. If the self-signal cannot be detected and verified in the received signal, the second wireless device may be requested to retransmit a modified self-signal and a predetermined number of attempts made to detect and verify the self-signal. Results of channel estimation performed on the received signal may be used in reconstructing the original self-signal. The channel estimation may include information from a plurality of frames in the received signal.

摘要翻译： 提供了一种用于无线通信设备中的信道感测的方法和装置。 在由第一无线设备接收的信号中检测到由另一无线通信设备有意地发送到第一无线设备的自身信号。 从检测到的自身信号重建由第二无线设备发送的原始自身信号。 然后在接收信号中抑制重建的自身信号，并对剩余的信号执行信道感测。 如果在接收到的信号中无法检测和验证自身信号，则可以请求第二无线设备重新发送修改的自身信号以及进行检测和验证自身信号的预定次数的尝试。 对接收到的信号进行信道估计的结果可以用于重建原始的自身信号。 信道估计可以包括来自接收信号中的多个帧的信息。

公开(公告)号：US20110086651A1

公开(公告)日：2011-04-14

申请号：US12856166

申请日：2010-08-13

申请人： Ying LI ,  Baowei JI ,  Zhouyue PI ,  Jung Je SON ,  Sudhir Ramakrishna ,  Youngkyo BAEK

发明人： Ying LI ,  Baowei JI ,  Zhouyue PI ,  Jung Je SON ,  Sudhir Ramakrishna ,  Youngkyo BAEK

IPC分类号： H04B15/00

CPC分类号： H04W28/04 ,  H04W4/06 ,  H04W84/045

摘要： A method and a Mobile Station (MS), for use in a wireless communication network comprising a plurality of Base Stations (BSs) capable of communicating with a plurality of MSs, wherein at least some of the BSs are Femtocell BSs (FBSs) and at least some of the BSs are Macrocell BSs (MBSs), for mitigating interference are provided. The method includes detecting, by an MS, an interfering Closed Subscriber Group (CSG) FBS that the MS is not authorized to access, and transmitting, by the MS, a request for mitigation of interference.

摘要翻译： 一种用于包括能够与多个MS进行通信的多个基站（BS）的无线通信网络中的方法和移动站（MS），其中至少一些BS是毫微微小区BS（FBS），并且在 至少一些BS是Macrocell BS（MBS），用于减轻干扰。 该方法包括由MS检测MS未被授权访问的干扰封闭用户组（CSG）FBS，以及由MS发送减轻干扰的请求。

公开(公告)号：US07848347B2

公开(公告)日：2010-12-07

申请号：US11387588

申请日：2006-03-23

申请人： Baowei Ji

发明人： Baowei Ji

IPC分类号： H04L12/403

CPC分类号： H04W24/10

摘要： A channel quality information (CQI) polling controller for use in a wireless communication network is capable of causing a base station to poll a mobile station within its coverage area for CQI at an initial predetermined rate. The controller is also capable of recognizing a CQI variation pattern of the mobile station based upon its responses to a plurality of the CQI polls. The controller is further capable of selecting a CQI polling rate based upon the recognized CQI variation pattern. The controller is also capable of causing the base station to poll the mobile station for CQI at the selected CQI polling rate.

摘要翻译： 在无线通信网络中使用的信道质量信息（CQI）轮询控制器能够使基站以其初始预定速率对其覆盖区域内的移动站轮询CQI。 控制器还能够基于其对多个CQI轮询的响应来识别移动台的CQI变化模式。 控制器还能够基于所识别的CQI变化模式来选择CQI轮询速率。 控制器还能够使基站以所选择的CQI轮询速率轮询移动台的CQI。

公开(公告)号：US20100061338A1

公开(公告)日：2010-03-11

申请号：US12321538

申请日：2009-01-22

申请人： Baowei Ji

发明人： Baowei Ji

IPC分类号： H04W36/00

CPC分类号： H04W36/32

摘要： A wireless communication network comprising a plurality of base stations capable of wireless communication with a plurality of subscriber stations within a coverage area of the network, wherein at least one of the plurality of base stations is capable of transmitting an edge-zone indicator which indicates the proximity of the at least one base station to an edge of an enhanced multicast broadcast system (E-MBS) zone.

摘要翻译： 一种无线通信网络，包括能够与所述网络的覆盖区域内的多个用户站进行无线通信的多个基站，其中，所述多个基站中的至少一个能够发送指示所述网络的边缘区域指示符 所述至少一个基站与增强型组播广播系统（E-MBS）区域的边缘的接近。