公开(公告)号：US20080009292A1

公开(公告)日：2008-01-10

申请号：US11856648

申请日：2007-09-17

申请人： David Julian ,  Avneesh Agrawal ,  Arak Sutivong ,  Edward Teague

发明人： David Julian ,  Avneesh Agrawal ,  Arak Sutivong ,  Edward Teague

IPC分类号： H04Q7/20

CPC分类号： H04W36/06

摘要： The disclosed embodiments provide for methods and systems for selecting sectors for handoff in a communication system. According to one aspect, the method includes monitoring an indicia of transmit power on a plurality of RL control channels directed to a plurality of sectors, and selecting one of the sectors as a candidate for a RL handoff. The disclosed embodiments also provide for methods and systems for indicating a selected serving sector for handoff in a communication system. According to one aspect, the method includes sending a first signal to a first sector to indicate the first sector as a serving sector for a forward-link handoff, and sending a second signal to a second sector to indicate the second sector as a serving sector for a reverse-link handoff.

摘要翻译： 所公开的实施例提供了用于在通信系统中选择用于切换的扇区的方法和系统。 根据一个方面，所述方法包括：监视指向多个扇区的多个RL控制信道上的发射功率的标记，以及选择所述扇区之一作为RL切换的候选。 所公开的实施例还提供了用于在通信系统中指示用于切换的所选择的服务扇区的方法和系统。 根据一个方面，所述方法包括向第一扇区发送第一信号以将第一扇区指示为用于前向链路切换的服务扇区，以及向第二扇区发送第二信号以将第二扇区指示为服务扇区 用于反向链路切换。

公开(公告)号：US20060135162A1

公开(公告)日：2006-06-22

申请号：US11020716

申请日：2004-12-22

申请人： David Julian ,  Avneesh Agrawal ,  Arak Sutivong ,  Edward Teague

发明人： David Julian ,  Avneesh Agrawal ,  Arak Sutivong ,  Edward Teague

IPC分类号： H04Q7/20

CPC分类号： H04W36/06

摘要： The disclosed embodiments provide for methods and systems for selecting sectors for handoff in a communication system. According to one aspect, the method includes monitoring an indicia of transmit power on a plurality of RL control channels directed to a plurality of sectors, and selecting one of the sectors as a candidate for a RL handoff. The disclosed embodiments also provide for methods and systems for indicating a selected serving sector for handoff in a communication system. According to one aspect, the method includes sending a first signal to a first sector to indicate the first sector as a serving sector for a forward-link handoff, and sending a second signal to a second sector to indicate the second sector as a serving sector for a reverse-link handoff.

摘要翻译： 所公开的实施例提供了用于在通信系统中选择用于切换的扇区的方法和系统。 根据一个方面，所述方法包括：监视指向多个扇区的多个RL控制信道上的发射功率的标记，以及选择所述扇区之一作为用于RL切换的候选。 所公开的实施例还提供了用于在通信系统中指示用于切换的所选择的服务扇区的方法和系统。 根据一个方面，所述方法包括向第一扇区发送第一信号以将第一扇区指示为用于前向链路切换的服务扇区，以及向第二扇区发送第二信号以将第二扇区指示为服务扇区 用于反向链路切换。

公开(公告)号：US20060135080A1

公开(公告)日：2006-06-22

申请号：US11021697

申请日：2004-12-22

申请人： Aamod Khandekar ,  Avneesh Agrawal ,  Arak Sutivong ,  Edward Teague

发明人： Aamod Khandekar ,  Avneesh Agrawal ,  Arak Sutivong ,  Edward Teague

IPC分类号： H04B17/00 ,  H04B1/00 ,  H04Q7/20 ,  H04B7/00

CPC分类号： H04W52/241 ,  H04L1/0001 ,  H04L1/0002 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/0066 ,  H04L1/20 ,  H04L1/206 ,  H04W52/24

摘要： Techniques for utilizing a capacity-based effective signal-to-noise ratio (SNR) to improve wireless communication are described herein. In an embodiment, a mobile terminal can determine the effective SNR from a forward link channel using pilot/data symbols. The mobile terminal can convey the effective SNR to a base station. In order to minimize transmission overhead, the mobile terminal can quantize the effective SNR prior to transmitting it to the base station. In another embodiment, the base station can determine the effective SNR from a reverse link. The base station can utilize the effective SNR to facilitate scheduling transmissions from the mobile terminal, transmitting power control commands to the mobile terminal, and determining a supporting data rate for the mobile terminal, for example. Suitable SNRs include constrained, unconstrained, average, and/or approximated effective SNRs. In addition, various filters, such as an averaging filter, can be utilized to further process the effective SNR.

公开(公告)号：US20060072604A1

公开(公告)日：2006-04-06

申请号：US11129636

申请日：2005-05-13

申请人： Arak Sutivong ,  Avneesh Agrawal ,  Alexei Gorokhov ,  Edward Teague

发明人： Arak Sutivong ,  Avneesh Agrawal ,  Alexei Gorokhov ,  Edward Teague

IPC分类号： H04J3/16

CPC分类号： H04W74/04 ,  H04W74/002

摘要： Pilots are transmitted on demand on a reverse link and used for channel estimation and data transmission on a forward link. A base station selects at least one terminal for on-demand pilot transmission on the reverse link. Each selected terminal is a candidate for receiving data transmission on the forward link. The base station assigns each selected terminal with a time-frequency allocation, which may be for a wideband pilot, a narrowband pilot, or some other type of pilot. The base station receives and processes on-demand pilot transmission from each selected terminal and derives a channel estimate for the terminal based on the received pilot transmission. The base station may schedule terminals for data transmission on the forward link based on the channel estimates for all selected terminals. The base station may also process data (e.g., perform beamforming or eigensteering) for transmission to each scheduled terminal based on its channel estimate.

摘要翻译： 飞行员根据需要在反向链路上传输，用于前向链路上的信道估计和数据传输。 基站在反向链路上选择至少一个用于按需导频发送的终端。 每个选择的终端是用于在前向链路上接收数据传输的候选者。 基站为每个选择的终端分配时间频率分配，其可以用于宽带导频，窄带导频或某种其他类型的导频。 基站从每个所选终端接收并处理按需导频传输，并根据接收到的导频传输导出终端的信道估计。 基站可以基于所有选择的终端的信道估计来安排在前向链路上进行数据传输的终端。 基站还可以基于其信道估计来处理数据（例如，执行波束成形或本征导向）以传输到每个调度的终端。

公开(公告)号：US20070147253A1

公开(公告)日：2007-06-28

申请号：US11317868

申请日：2005-12-22

申请人： Arak Sutivong ,  Avneesh Agrawal ,  Edward Teague

发明人： Arak Sutivong ,  Avneesh Agrawal ,  Edward Teague

IPC分类号： H04L12/26

CPC分类号： H04L1/1829 ,  H04L1/0003 ,  H04L1/0007 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/1816 ,  H04L1/1819 ,  H04L2001/125

摘要： A method and apparatus to determine whether a transmission was successfully received in a multiple access communication system is claimed. First and second encoded data packets are received and decoded. The first and second data packets are then re-encoded, and correlated to determine whether the first and second re-encoded data packets are the same. If there is a high degree of correlation, an indicator of acknowledgement is transmitted to indicate that there is a high degree of correlation between the first and second re-encoded data packets. If there is a low degree of correlation, a determination is made that the previously transmitted indicator of acknowledgement was correctly received.

摘要翻译： 要求确定在多址通信系统中是否成功接收到传输的方法和装置。 第一和第二编码数据分组被接收和解码。 然后对第一和第二数据分组进行重新编码，并进行相关，以确定第一和第二重新编码的数据分组是否相同。 如果存在高度的相关性，则发送确认的指示符以指示第一和第二重新编码的数据分组之间存在高度的相关性。 如果存在低度的相关性，则确定先前发送的确认指示符被正确地接收。

公开(公告)号：US20060286996A1

公开(公告)日：2006-12-21

申请号：US11453438

申请日：2006-06-14

申请人： David Julian ,  Avneesh Agrawal ,  Edward Teague

发明人： David Julian ,  Avneesh Agrawal ,  Edward Teague

IPC分类号： H04B7/00

CPC分类号： H04W48/20 ,  H04B7/022 ,  H04B17/24 ,  H04W52/0235 ,  H04W52/146 ,  H04W52/225 ,  H04W52/40 ,  H04W74/0866 ,  Y02D70/1222 ,  Y02D70/442

摘要： Techniques for selecting a reverse link (RL) serving base station for a terminal are described. The terminal sends a transmission on the reverse link to multiple base stations in a wireless communication system. The transmission may be for signaling sent on a control channel. The terminal receives feedback (e.g., power control (PC) commands and/or erasure indications) from the multiple base stations. Each base station may generate feedback based on the control channel and/or some other transmission received from the terminal. The terminal performs reverse link power control and further selects an RL serving base station based on the received feedback. For example, the terminal may select the base station with the lowest transmit power level, the largest percentage of power down commands, or the lowest erasure rate as the RL serving base station.

摘要翻译： 描述用于选择用于终端的反向链路（RL）服务基站的技术。 终端在无线通信系统中将反向链路上的传输发送到多个基站。 传输可以用于在控制信道上发送的信令。 终端从多个基站接收反馈（例如功率控制（PC）命令和/或擦除指示）。 每个基站可以基于从终端接收的控制信道和/或一些其他传输来产生反馈。 终端执行反向链路功率控制，并且基于接收到的反馈进一步选择RL服务基站。 例如，终端可以选择具有最低发射功率电平的基站，掉电命令的最大百分比或作为RL服务基站的最低擦除率的基站。

公开(公告)号：US20060268783A1

公开(公告)日：2006-11-30

申请号：US11418932

申请日：2006-05-04

申请人： David Julian ,  Avneesh Agrawal ,  Edward Teague

发明人： David Julian ,  Avneesh Agrawal ,  Edward Teague

IPC分类号： H04Q7/00

CPC分类号： H04W36/18 ,  H04W36/06 ,  H04W36/22 ,  H04W36/38

摘要： Systems and methods are provided to facilitate efficient communications handoff for access terminals in a wireless network. In an aspect, a method to handoff communications in a wireless network is provided. The method includes decoding assignment messages from one or more sectors in an active set and performing an access terminal handoff based at least in part on the active set.

摘要翻译： 提供系统和方法以便于无线网络中的接入终端的有效的通信切换。 在一方面，提供了一种在无线网络中切换通信的方法。 所述方法包括解码来自活动集中的一个或多个扇区的分配消息，并且至少部分地基于所述活动集来执行接入终端切换。

公开(公告)号：US20060153239A1

公开(公告)日：2006-07-13

申请号：US11022143

申请日：2004-12-22

申请人： David Julian ,  Avneesh Agrawal ,  Edward Teague

发明人： David Julian ,  Avneesh Agrawal ,  Edward Teague

IPC分类号： H04J3/24

CPC分类号： H04W28/065 ,  H04L1/0006 ,  H04L1/0026 ,  H04L1/1812 ,  H04W72/1205

摘要： An apparatus and method of delivering data in a wireless communication system, the apparatus and method comprising of determining, based on first criteria, if a shared channel can utilized to transmit an actual data packet; converting said actual data packet into one or more first data packets, wherein each said one or more first data packet represent a portion of said actual data packet; and transmitting each said one or more first data packet using said shared channel.

摘要翻译： 一种在无线通信系统中传送数据的装置和方法，所述装置和方法包括：基于第一准则确定共享信道是否可以用于发送实际数据分组; 将所述实际数据分组转换成一个或多个第一数据分组，其中每个所述一个或多个第一数据分组表示所述实际数据分组的一部分; 以及使用所述共享信道发送每个所述一个或多个第一数据分组。

公开(公告)号：US20060136790A1

公开(公告)日：2006-06-22

申请号：US11020583

申请日：2004-12-22

申请人： David Julian ,  Avneesh Agrawal ,  Edward Teague

发明人： David Julian ,  Avneesh Agrawal ,  Edward Teague

IPC分类号： G06F11/00

CPC分类号： H04L1/1867 ,  H04L1/1819 ,  H04L1/20

摘要： Method and apparatus for transmission of information in multiple access communication system is claim. Information using incremental redundancy is transmitted. A determination is made as to whether reverse link performance drops below a predetermined threshold. Determination of reverse link performance may be done in variety of ways, including use of a filter percentage of ACK erasures, measured error rates on the reverse link control channel, reverse link data channel error rates, and other methods. Upon determination of channel degradation, the access point can decide whether to ignore messages sent from the access terminal to instruct the access terminal to cease transmission.

摘要翻译： 一种用于在多址通信系统中传输信息的方法和装置。 发送使用增量冗余的信息。 确定反向链路性能是否下降到预定阈值以下。 反向链路性能的确定可以以各种方式进行，包括使用ACK擦除的滤波器百分比，反向链路控制信道上的测量误码率，反向链路数据信道错误率等方法。 在确定信道劣化时，接入点可以决定是否忽略从接入终端发送的消息，指示接入终端停止发送。

公开(公告)号：US20060018336A1

公开(公告)日：2006-01-26

申请号：US11020457

申请日：2004-12-22

申请人： Arak Sutivong ,  Edward Teague ,  Alexei Gorokhov

发明人： Arak Sutivong ,  Edward Teague ,  Alexei Gorokhov

IPC分类号： H04J3/14 ,  H04J3/16 ,  H04J3/22 ,  H04L12/26 ,  H04J1/16 ,  H04L1/00 ,  H04B7/216

CPC分类号： H04W74/004 ,  H04L1/0023 ,  H04L1/0026 ,  H04L1/1692 ,  H04W52/04 ,  H04W72/085 ,  H04W74/0833

摘要： An apparatus and method for transmitting an indicator of channel quality while minimizing the use of a broadcast channel is described. A metric of forward link geometry of observed transmission signals is determined. An indicator of channel quality value is determined as a function of the observed transmission signals. An access sequence is selected, randomly, from one group of a plurality of groups of access sequences, wherein each of the plurality of groups of access sequences correspond to different ranges of channel quality values.