公开(公告)号：US08483200B2

公开(公告)日：2013-07-09

申请号：US11400400

申请日：2006-04-06

申请人： Inhyok Cha ,  Eldad Zeira ,  Keith Richard Baldwin

发明人： Inhyok Cha ,  Eldad Zeira ,  Keith Richard Baldwin

IPC分类号： H04H20/67

CPC分类号： H04B7/0413 ,  H04B7/0695 ,  H04B7/088

摘要： A method and apparatus for selecting an antenna mapping in multiple-in/multiple-out (MIMO) enabled wireless communication networks. A candidate set of currently available antenna mappings is determined based upon measured long term channel conditions. An antenna mapping is selected from the candidate set, and the mapping is calibrated with a selected antenna mapping of a receiving wireless transmit/receive unit (WTRU). When the selected mappings are calibrated, packet data transmission begins. In an alternative embodiment, a calibration training frame (CTF) is used to calibrate multiple antenna mappings simultaneously or sequentially. Also disclosed are physical layer and medium access control layer frame formats for implementing antenna mapping selection according to the invention.

公开(公告)号：US20060270343A1

公开(公告)日：2006-11-30

申请号：US11400400

申请日：2006-04-06

申请人： Inhyok Cha ,  Eldad Zeira ,  Keith Baldwin

发明人： Inhyok Cha ,  Eldad Zeira ,  Keith Baldwin

IPC分类号： H04B7/14

CPC分类号： H04B7/0413 ,  H04B7/0695 ,  H04B7/088

摘要： A method and apparatus for selecting an antenna mapping in multiple-in/multiple-out (MIMO) enabled wireless communication networks. A candidate set of currently available antenna mappings is determined based upon measured long term channel conditions. An antenna mapping is selected from the candidate set, and the mapping is calibrated with a selected antenna mapping of a receiving wireless transmit/receive unit (WTRU). When the selected mappings are calibrated, packet data transmission begins. In an alternative embodiment, a calibration training frame (CTF) is used to calibrate multiple antenna mappings simultaneously or sequentially. Also disclosed are physical layer and medium access control layer frame formats for implementing antenna mapping selection according to the invention.

公开(公告)号：US08649322B2

公开(公告)日：2014-02-11

申请号：US11199446

申请日：2005-08-08

申请人： Sudheer A. Grandhi ,  Arty Chandra ,  Joseph S. Levy ,  Kamel M. Shaheen ,  Stephen E. Terry ,  Eldad Zeira

发明人： Sudheer A. Grandhi ,  Arty Chandra ,  Joseph S. Levy ,  Kamel M. Shaheen ,  Stephen E. Terry ,  Eldad Zeira

IPC分类号： H04W80/04

CPC分类号： H04B7/2612 ,  H04B7/02 ,  H04B7/0413 ,  H04W48/10 ,  H04W72/005 ,  H04W72/0446 ,  H04W74/08 ,  H04W74/0816 ,  H04W84/12 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/142 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/442 ,  Y02D70/449

摘要： A method and system for controlling access to a wireless communication medium are disclosed. The system includes at least one access point (AP) and at least one station (STA). The AP defines a superframe for transmission of data in a time domain having a high throughput (HT) period which includes at least one scheduled resource allocation (SRA) and at least one management SRA (MSRA). The AP broadcasts an extended beacon (EB) including information about the SRA and MSRA. The SRA is defined for transmitting traffic data between the AP and the STA, and the MSRA is defined for transmitting management and control data between the AP and the STA. The system reduces station battery consumption, supports higher throughput for non-real time (NRT) traffic and is more efficient for real time (RT) traffic while maintaining full compatibility.

摘要翻译： 公开了一种用于控制对无线通信介质的访问的方法和系统。 系统包括至少一个接入点（AP）和至少一个站（STA）。 AP定义了在具有高吞吐量（HT）周期的时域中的数据传输的超帧，其包括至少一个调度的资源分配（SRA）和至少一个管理SRA（MSRA）。 AP广播包括关于SRA和MSRA的信息的扩展信标（EB）。 定义了用于在AP和STA之间传输业务数据的SRA，并且定义了MSRA在AP和STA之间传输管理和控制数据。 该系统降低站电池消耗，支持非实时（NRT）流量的更高吞吐量，并且在保持完全兼容性的同时对于实时（RT）流量更有效。

公开(公告)号：US20120213206A1

公开(公告)日：2012-08-23

申请号：US13458377

申请日：2012-04-27

申请人： Stephen E. Terry ,  Stephen G. Dick ,  James M. Miller ,  Eldad Zeira ,  Ariela Zeira

发明人： Stephen E. Terry ,  Stephen G. Dick ,  James M. Miller ,  Eldad Zeira ,  Ariela Zeira

IPC分类号： H04W72/04 ,  H04J3/00 ,  H04W88/02 ,  H04B7/216

CPC分类号： H04W72/0446 ,  H04B7/0686 ,  H04B7/2618 ,  H04J13/16 ,  H04W72/042 ,  H04W72/0466

摘要： A wireless hybrid time division multiple access/code division multiple access (TDMA/CDMA) user equipment (UE) includes a signaling receiver and a data detection device in communication with the signaling receiver. The signaling receiver is configured to receive and recover signaled information of code and timeslot assignments of the UE to support an RF communication. The data detection device is configured to recover from the signaling information an identifier of a plurality of assigned timeslots and an indication of a first and last code of a set of consecutive codes. The last code is identified by an identifier associated with the last code.

摘要翻译： 无线混合时分多址/码分多址（TDMA / CDMA）用户设备（UE）包括信令接收机和与信令接收机通信的数据检测设备。 信令接收器被配置为接收和恢复UE的信号信号信号和UE的时隙分配以支持RF通信。 数据检测装置被配置为从信令信息中恢复多个分配的时隙的标识符以及一组连续码的第一和最后一个码的指示。 最后一个代码由与最后一个代码相关联的标识符标识。

公开(公告)号：US20120195263A1

公开(公告)日：2012-08-02

申请号：US13444950

申请日：2012-04-12

申请人： Arty Chandra ,  Joseph S. Levy ,  Sudheer A. Grandhi ,  Eldad Zeira

发明人： Arty Chandra ,  Joseph S. Levy ,  Sudheer A. Grandhi ,  Eldad Zeira

IPC分类号： H04W4/00

CPC分类号： H04W28/16 ,  H04W76/14 ,  H04W84/18

摘要： A method and apparatus may be used for peer-to-peer communications. A first non-access point (non-AP) station (STA) may receive a message for establishing a direct communication link from a second non-AP STA. The message may include a service priority. The first non-AP STA may transmit another message in response to receiving the message from the second non-AP STA, and communicate directly with the second non-AP STA. The system may be an Ad hoc network comprising a plurality of STAs without an access point (AP) where each STA maintains a database of one-hop and two-hop STAs, and establishes a direct link to other STAs after informing neighboring STAs of an intention to establish a direct communication link.

摘要翻译： 方法和装置可以用于对等通信。 第一非接入点（非AP）站（STA）可以从第二非AP STA接收用于建立直接通信链路的消息。 消息可以包括服务优先级。 响应于从第二非AP STA接收到消息，第一非AP STA可以发送另一个消息，并直接与第二非AP STA通信。 该系统可以是包括没有接入点（AP）的多个STA的Ad hoc网络，其中每个STA维护一跳和两跳STA的数据库，并且在通知相邻STA之后建立到其他STA的直接链路 建立直接沟通联系的意图。

公开(公告)号：US20110190015A1

公开(公告)日：2011-08-04

申请号：US13083717

申请日：2011-04-11

申请人： Stephen G. Dick ,  Eldad Zeira

发明人： Stephen G. Dick ,  Eldad Zeira

IPC分类号： H04W56/00

CPC分类号： H04W56/002 ,  H04B1/7073 ,  H04B7/2668 ,  H04B7/2687 ,  H04B7/269 ,  H04B7/2693 ,  H04B7/2696 ,  H04B2201/70702 ,  H04J3/0641 ,  H04W56/0065 ,  H04W56/0075

摘要： A method and apparatus of time synchronizing a plurality of base stations in a wireless communication system includes receiving an indication of a timing associated with a synch burst, where the synch burst is from a mastercell having a better time synchronization quality than other cells and measured by at least one cell other than the mastercell. A request is sent to a wireless transmit/receive unit (WTRU) for a measurement of a base station time of arrival (BSTOA) value of the at least one cell other than the mastercell. The BSTOA value from the WTRU is received and a timing adjustment is sent to the at least one cell other than the mastercell.

摘要翻译： 一种在无线通信系统中时间同步多个基站的方法和装置包括：接收与同步脉冲串相关联的定时的指示，其中同步脉冲串来自具有比其它小区更好的时间同步质量的主信元，并由 除了主母单元之外的至少一个单元。 向无线发射/接收单元（WTRU）发送用于测量除主蜂窝以外的至少一个小区的基站到达时间（BSTOA）值的请求。 接收来自WTRU的BSTOA值，并将定时调整发送到除了主蜂窝以外的至少一个小区。

公开(公告)号：US07924961B2

公开(公告)日：2011-04-12

申请号：US12127063

申请日：2008-05-27

申请人： Stephen G. Dick ,  Eldad Zeira

发明人： Stephen G. Dick ,  Eldad Zeira

IPC分类号： H04L7/00

CPC分类号： H04W56/002 ,  H04B1/7073 ,  H04B7/2668 ,  H04B7/2687 ,  H04B7/269 ,  H04B7/2693 ,  H04B7/2696 ,  H04B2201/70702 ,  H04J3/0641 ,  H04W56/0065 ,  H04W56/0075

摘要： A method, implemented in a user equipment (UE), of maintaining base station synchronization, comprises receiving a measurement message from a radio network controller (RNC) directing the UE to measure a time difference of arrival (TDOA) between signals transmitted from a first and second base station. The UE receives a transmission from the first and second base stations and measures the TDOA of the transmission from the first and second base station. The UE transmits the measurement of the TDOA of the transmission from the first base station to the first base station, and the measurement of the TDOA of the transmission from the second base station to the second base station.

摘要翻译： 在用户设备（UE）中实现的维护基站同步的方法包括：从无线电网络控制器（RNC）接收测量消息，指示UE测量从第一个发送的信号发送的信号之间的到达时间差（TDOA） 和第二基站。 UE从第一和第二基站接收传输，并测量来自第一和第二基站的传输的TDOA。 UE将传输的TDOA的测量从第一基站发送到第一基站，以及从第二基站到第二基站的传输的TDOA的测量。

公开(公告)号：US20100157948A1

公开(公告)日：2010-06-24

申请号：US12715665

申请日：2010-03-02

申请人： Eldad Zeira ,  Ariela Zeira ,  Stephen E. Terry

发明人： Eldad Zeira ,  Ariela Zeira ,  Stephen E. Terry

IPC分类号： H04W36/00

CPC分类号： H04W36/30

摘要： A method of using a mobile unit in a multi-cell communication system to determine whether to commence handover of the mobile unit from a serving base station located in a first cell of the communication system to a target base station located in a second cell of the communication system. The mobile unit determines the serving base station received signal code power (RSCPser), the first cell interference signal code power (ISCPser), the target base station received signal code power (RSCPtar) and the second cell interference signal code power (ISCPtar). If the ratio RSCPser/ISCPser is less than the ratio RSCPtar/ISCPtar, the mobile unit commences handover to the target base station. The multi-cell communication system may be a time division duplex (TDD) system. The mobile unit may send a message to a radio network controller (RNC) in communication with the serving and target base stations to initiate the handover.

摘要翻译： 一种在多小区通信系统中使用移动单元以确定是否开始将移动单元从位于通信系统的第一小区中的服务基站切换到位于所述通信系统的第二小区中的目标基站的方法 通讯系统 移动单元确定服务基站接收信号码功率（RSCPser），第一小区干扰信号码功率（ISCPser），目标基站接收信号码功率（RSCPtar）和第二小区干扰信号码功率（ISCPtar）。 如果RSCPser / ISCPser的比率小于RSCPtar / ISCPtar的比率，则移动单元开始切换到目标基站。 多小区通信系统可以是时分双工（TDD）系统。 移动单元可以向与服务基站和目标基站通信的无线电网络控制器（RNC）发送消息以发起切换。

公开(公告)号：US20090298528A1

公开(公告)日：2009-12-03

申请号：US12538588

申请日：2009-08-10

申请人： Christopher Cave ,  Eldad Zeira

发明人： Christopher Cave ,  Eldad Zeira

IPC分类号： H04B7/005 ,  H04B15/00

CPC分类号： H04L1/0061 ,  H04W24/00 ,  H04W28/18 ,  H04W74/08

摘要： The present invention is a method for controlling access to a contention-based communication channel. Error types of a transmitted communication signal over the communication channel are classified and corresponding parameters of the communication channel are adjusted in response to the classification to control the rate at which individual error types occur.

摘要翻译： 本发明是一种用于控制对基于竞争的通信信道的访问的方法。 在通信信道上发送的通信信号的错误类型被分类，并且响应于分类来调整通信信道的相应参数以控制出现各种错误类型的速率。

公开(公告)号：US20090245220A1

公开(公告)日：2009-10-01

申请号：US12430414

申请日：2009-04-27

申请人： Stephen G. Dick ,  Charles Dennean ,  Eldad Zeira ,  Jung-Lin Pan ,  Sung-Hyuk Shin ,  Ariela Zeira

发明人： Stephen G. Dick ,  Charles Dennean ,  Eldad Zeira ,  Jung-Lin Pan ,  Sung-Hyuk Shin ,  Ariela Zeira

IPC分类号： H04B7/216

CPC分类号： H04B7/2628 ,  H04B1/707 ,  H04B1/7077 ,  H04B1/7093 ,  H04J13/00 ,  H04J13/10

摘要： One out of sixteen preamble signatures is selected. A code is produced based on the selected preamble signature. The produced code is phase rotated to produce a processed preamble signature signal. The processed preamble signature signal is used in processing the CDMA RACH signal and the CDMA RACH signal is used to access a CDMA system.

摘要翻译： 选择十六个前缀签名中的一个。 基于所选择的前导签名生成代码。 产生的代码被相位旋转以产生经处理的前导签名信号。 经处理的前导签名信号用于处理CDMA RACH信号，CDMA RACH信号用于接入CDMA系统。