On-demand reverse-link pilot transmission
    12.
    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

    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
    14.
    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

    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。

    Varied transmission time intervals for wireless communication system
    15.
    发明申请
    Varied transmission time intervals for wireless communication system 有权
    无线通信系统的传输时间间隔

    公开(公告)号:US20070047485A1

    公开(公告)日:2007-03-01

    申请号:US11260932

    申请日:2005-10-27

    IPC分类号: H04Q7/00

    CPC分类号: H04W72/1231

    摘要: Embodiments describe a varied transmission time interval in wireless communication system. According to some embodiments is a method for assigning a transmission time interval. The method can include measuring a channel condition and/or a data rate of packet communicated by at least one wireless device. Based in part on the data rate and/or channel condition information, a determination can be made whether to schedule a long transmission time interval or a short transmission time interval to the packet. A long transmission time interval can be scheduled if the channel condition is poor and/or there is a low data rate. A short transmission time interval can be scheduled if the channel condition is good and/or the data rate is high or fast. The method can be repeated for multiple wireless devices. Also included is an alternative interlacing structure that supports both long transmission time intervals and short transmission time intervals.

    摘要翻译: 实施例描述了无线通信系统中的变化的传输时间间隔。 根据一些实施例是用于分配传输时间间隔的方法。 该方法可以包括测量由至少一个无线设备传送的分组的信道条件和/或数据速率。 部分地基于数据速率和/或信道条件信息,可以确定是否为分组规划长的传输时间间隔或短的传输时间间隔。 如果信道条件差和/或数据速率低,则可以调度长传输时间间隔。 如果信道条件良好和/或数据速率高或快,则可以调度短传输时间间隔。 可以为多个无线设备重复该方法。 还包括支持长传输时间间隔和短传输时间间隔的替代交错结构。

    Multiple paging channels for efficient region paging
    17.
    发明申请
    Multiple paging channels for efficient region paging 有权
    多个寻呼信道用于有效的区域寻呼

    公开(公告)号:US20060198344A1

    公开(公告)日:2006-09-07

    申请号:US11144325

    申请日:2005-06-03

    IPC分类号: H04B7/212

    CPC分类号: H04W68/00 H04W68/10

    摘要: Systems and methods are described that mitigating coverage gaps near region boundaries using a plurality of multi-sector broadcast (MSBC) paging channels in wireless networking environments. One or more MSBC paging channels can be assigned unique time slots, such that although the channels can be identical, they are disjointed in time. Accordingly, such channels and/or dynamically generated paging zones associated therewith can be overlapped in areas where wireless device density is high and requires substantial paging capacity. Additionally, a single paging channel can be employed in multiple instances in a paging region without overlap to mitigate inter-channel interference.

    摘要翻译: 描述了使用无线联网环境中的多个多扇区广播(MSBC)寻呼信道来减轻区域边界附近的覆盖距离的系统和方法。 一个或多个MSBC寻呼信道可以被分配唯一的时隙,使得虽然信道可以是相同的,但是它们在时间上是脱节的。 因此,这样的信道和/或动态产生的与其相关联的寻呼区可以在无线设备密度高并且需要大量寻呼容量的区域中重叠。 此外,单个寻呼信道可以在寻呼区域的多个实例中被采用,而不重叠以减轻信道间干扰。

    Method of providing a gap indication during a sticky assignment

    公开(公告)号:US20060034173A1

    公开(公告)日:2006-02-16

    申请号:US11022144

    申请日:2004-12-22

    IPC分类号: H04J1/16 H04J3/14

    CPC分类号: H04W76/25 H04W72/04

    摘要: A method and apparatus are provided to manage the assignment transmission resource of forward and reserve link that is assigned to transmitting entity for a period of time. An indication of a gap is provided whenever the transmitting entity is not transmitting actual data packets (e.g. whole or part of intended data or content), yet the transmitting entity is to maintain the assignment of the allocated resource. For example, an erasure signature packet comprising a first data pattern is transmitted on the assigned resource when there is no actual data to transmit on the assigned resource.

    Soft handoff for reverse link in a wireless communication system with frequency reuse
    19.
    发明申请
    Soft handoff for reverse link in a wireless communication system with frequency reuse 有权
    在具有频率重用的无线通信系统中的反向链路的软切换

    公开(公告)号:US20050271012A1

    公开(公告)日:2005-12-08

    申请号:US10969158

    申请日:2004-10-20

    CPC分类号: H04W36/18 H04W36/06

    摘要: For soft handoff on the reverse link with restrictive reuse, a wireless terminal searches for pilots transmitted by sectors in a wireless system, measures the detected pilots, selects a serving sector (e.g., the strongest received sector), and identifies non-serving sectors that may receive high interference from the terminal. The serving sector assigns the terminal with subband(s) that are usable by the serving sector and unusable by the non-serving sectors. The terminal transmits data symbols on the assigned subbands to the serving and non-serving sectors. These sectors process the reverse link transmission from the terminal and obtain soft-decision symbols, which are estimates of the transmitted data symbols. The soft-decision symbols from co-located sectors may be combined and then decoded to obtain decoded packets. The sectors may also independently decode the soft-decision symbols, and the decoded packets from these sectors may be combined to obtain final decoded packets for the terminal.

    摘要翻译: 对于具有限制性重用的反向链路上的软切换,无线终端搜索无线系统中的扇区传输的导频,测量检测到的导频,选择服务扇区(例如,最强的接收扇区),并识别非服务扇区 可能会受到来自终端的高干扰。 服务扇区为终端分配可由服务扇区使用且不能由非服务扇区使用的子带。 终端在分配的子带上发送数据符号给服务扇区和非服务扇区。 这些扇区处理来自终端的反向链路传输,并获得作为发送数据符号的估计的软判决符号。 可以组合来自同位置扇区的软判决符号,然后对其进行解码以获得解码的分组。 这些扇区还可以独立地解码软判决符号,并且可以组合来自这些扇区的解码分组以获得终端的最终解码分组。

    Restrictive reuse for a wireless communication system
    20.
    发明申请
    Restrictive reuse for a wireless communication system 有权
    无线通信系统的限制性重用

    公开(公告)号:US20050096062A1

    公开(公告)日:2005-05-05

    申请号:US10871084

    申请日:2004-06-18

    摘要: For restrictive reuse, each cell (or each sector) is assigned (1) a set of usable subbands that may be allocated to users in the cell and (2) a set of forbidden subbands that is not used. The usable and forbidden sets for each cell are orthogonal to one other. The usable set for each cell also overlaps the forbidden set for each neighboring cell. A user u in a cell x may be allocated subbands in the usable set for that cell. If user u observes/causes high level of interference from/to a neighboring cell y, then user u may be allocated subbands from a “restricted” set containing subbands included in both the usable set for cell x and the forbidden set for cell y. User u would then observe/cause no interference from/to cell y. The subband restriction may be extended to avoid interference from multiple neighboring cells.

    摘要翻译: 对于限制性重用,分配每个小区(或每个扇区)(1)可以分配给小区中的用户的一组可用子带,以及(2)未使用的一组禁止子带。 每个单元的可用和禁止的集合彼此正交。 每个单元的可用集合也与每个相邻单元的禁止集重叠。 小区x中的用户u可以被分配给该小区的可用集合中的子带。 如果用户u观察到/来自相邻小区y的高水平的干扰,则可以从包含小区x的可用集合和小区y的禁止集合的包含子带的“受限制”集合中分配用户u的子带。 用户u然后将观察/不造成来自/到小区y的干扰。 可以扩展子带限制以避免来自多个相邻小区的干扰。