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    On-demand reverse-link pilot transmission
    1.
    发明申请
    On-demand reverse-link pilot transmission 有权
    按需反向链路导频传输

    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。

    Methods and Apparatus for Flexible Forward-Link and Reverse-Link Handoffs
    3.
    发明申请
    Methods and Apparatus for Flexible Forward-Link and Reverse-Link Handoffs 有权
    灵活的前向链路和反向链路切换的方法和装置

    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。

    Efficient ACK to NACK error detection
    5.
    发明申请
    Efficient ACK to NACK error detection 有权
    高效的ACK到NACK错误检测

    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。

    Methods and apparatus for flexible forward-link and reverse-link handoffs
    6.
    发明申请
    Methods and apparatus for flexible forward-link and reverse-link handoffs 有权
    灵活的前向链路和反向链路切换的方法和装置

    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。