公开(公告)号：US20050272453A1

公开(公告)日：2005-12-08

申请号：US11199402

申请日：2005-08-08

申请人： Rajiv Laroia ,  Junyi Li ,  Sathyadev Uppala

发明人： Rajiv Laroia ,  Junyi Li ,  Sathyadev Uppala

IPC分类号： H04J3/00 ,  H04W68/00 ,  H04B7/00

CPC分类号： H04W68/00

摘要： An unique arrangement including a so-called timing control order and timing control signals is employed to identify whether wireless terminals are reachable within a base station cell coverage area in a wireless communications system. To this end, detection of a particular wireless terminal being alive and well, and within the cell coverage area associated with a base station is effected by the base station transmitting a timing control order in a timing control time slot reserved for the particular wireless terminal. If the particular wireless terminal receives the timing control order, it transmits a prescribed timing control message at a prescribed time. If the base station does not receive the timing control message, it is an indication that communication with the particular wireless terminal has been lost.

摘要翻译： 使用包括所谓的定时控制顺序和定时控制信号的唯一布置来识别在无线通信系统中的基站小区覆盖区域内无线终端是否可达。 为此，基站在为特定无线终端保留的定时控制时隙中发送定时控制命令来实现对与基站相关联的小区覆盖区域中存在且良好并且在小区覆盖区域内的特定无线终端的检测。 如果特定无线终端接收到定时控制命令，则在规定的时间发送规定的定时控制消息。 如果基站没有接收到定时控制消息，则表示与特定无线终端的通信已经丢失。

公开(公告)号：US08620332B2

公开(公告)日：2013-12-31

申请号：US12694805

申请日：2010-01-27

申请人： Rajiv Laroia ,  Junyi Li ,  Sathyadev Uppala

发明人： Rajiv Laroia ,  Junyi Li ,  Sathyadev Uppala

IPC分类号： H04W4/00

CPC分类号： H04W16/12 ,  H04W16/14 ,  H04W24/00 ,  H04W36/06 ,  H04W52/0235 ,  H04W52/028 ,  H04W52/08 ,  H04W52/281 ,  H04W52/283 ,  H04W52/286 ,  H04W52/287 ,  H04W52/288 ,  H04W52/60 ,  H04W68/02 ,  H04W68/025 ,  H04W72/00 ,  H04W72/0413 ,  H04W72/048 ,  Y02D70/23

摘要： The use of multiple states of mobile communication device operation to allow a single base station to support a relatively large number of mobile nodes is described. The various states require different amounts of communications resources, e.g., bandwidth. Four supported states of operation are an on-state, a hold-state, a sleep-state, and an access-state. Each mobile node in the on-state is allocated communication resources to perform transmission power control signaling, transmission timing control signaling and to transmit data as part of a data uplink communications operation. Each mobile node in the hold-state is allocated communication resources to perform transmission timing control signaling and is provided a dedicated uplink for requesting a state transition and a shared resource for transmitting acknowledgements. In the sleep state a mobile node is allocated minimal resources and does not conduct power control signaling or timing control signaling. Data may be received in the on and hold states.

摘要翻译： 描述了使用移动通信设备操作的多种状态来允许单个基站支持相对大量的移动节点。 各种状态需要不同数量的通信资源，例如带宽。 四个支持的操作状态是开状态，保持状态，睡眠状态和访问状态。 处于导通状态的每个移动节点被分配通信资源以执行传输功率控制信令，传输定时控制信令，并且作为数据上行链路通信操作的一部分来发送数据。 保持状态下的每个移动节点被分配通信资源以执行传输定时控制信令，并且提供用于请求状态转换的专用上行链路和用于发送确认的共享资源。 在睡眠状态下，移动节点被分配最少资源，并且不进行功率控制信令或定时控制信令。 可以在接通和保持状态下接收数据。

公开(公告)号：US20060002452A1

公开(公告)日：2006-01-05

申请号：US11178909

申请日：2005-07-11

申请人： Rajiv Laroia ,  Junyi Li ,  Sathyadev Uppala

发明人： Rajiv Laroia ,  Junyi Li ,  Sathyadev Uppala

IPC分类号： H04B1/713

CPC分类号： H04B1/7143 ,  H04B1/7156 ,  H04B2001/71563 ,  H04L5/0019 ,  H04L5/0048 ,  H04L25/0226 ,  H04L27/2613

摘要： Base station identification and downlink synchronization are realized by employing pilots including known symbols transmitted at prescribed frequency tones in individual ones of prescribed time intervals. Specifically, the symbols used in the pilots are uniquely located in a time-frequency grid, where the locations are specified by periodic pilot tone hopping sequences. In a specific embodiment of the invention, a period of a pilot tone hopping sequence is constructed by starting with a Latin-square based hopping sequence, truncating it over time, and possibly offsetting and permuting it over frequency. Particular examples of pilot tone hopping sequences are parallel slope hopping sequences in which the periodicity of the sequences is chosen to be a prime number of symbol time intervals. In another embodiment of the invention, a notion of phantom pilots is employed to facilitate use of various system parameters while accommodating the above noted pilot tone hopping sequences.

摘要翻译： 基站识别和下行同步通过采用包括以规定时间间隔的各个规定频率发送的已知符号的导频来实现。 具体地，在导频中使用的符号唯一地位于时间 - 频率网格中，其中，位置由周期性导频音跳频序列指定。 在本发明的具体实施例中，通过以拉丁方为基础的跳频序列开始构建导频音跳频序列的周期，并且随着时间的推移将其截断，并可能通过频率进行偏移和置换。 导频音跳频序列的具体示例是平行斜率跳频序列，其中序列的周期性被选择为码元时间间隔的素数。 在本发明的另一个实施例中，使用幻像导频的概念来促进各种系统参数的使用，同时容纳上述导频音跳频序列。

公开(公告)号：US20070217390A1

公开(公告)日：2007-09-20

申请号：US11752588

申请日：2007-05-23

申请人： Rajiv Laroia ,  Junyi Li ,  Sathyadev Uppala

发明人： Rajiv Laroia ,  Junyi Li ,  Sathyadev Uppala

IPC分类号： H04J3/06 ,  H04Q7/20

CPC分类号： H04W72/14 ,  H04W28/06 ,  H04W48/08 ,  H04W48/16 ,  H04W72/00 ,  H04W72/04 ,  H04W72/042

摘要： Allocation of a wireless communications system channel resource is managed by utilizing traffic segment allocation. This is realized by partitioning the channel resource into an assignment channel and a traffic channel in a fixed manner. The assignment channel includes assignment segments and the traffic channel includes traffic segments. The traffic segment is the basic traffic channel resource unit used to transport traffic data and has a prescribed finite time interval and bandwidth. Each traffic segment is associated with a so-called assignment segment in a prescribed manner. One or more traffic segments may be associated with a particular assignment segment. A base station broadcasts via an assignment segment which wireless terminal is to use a particular traffic segment. This is realized by transmitting a simply identifier for the particular wireless terminal assigned to the particular traffic segment in the assignment segment. Then, each active wireless terminal monitors all of the received assignment segments to detect any traffic channel assignments. Once a wireless terminal detects its identifier in an assignment segment, it proceeds to receive/transmit the traffic data in the traffic segment associated with the assignment segment including the detected identifier.

摘要翻译： 通过利用业务段分配来管理无线通信系统信道资源的分配。 这是通过以固定的方式将信道资源划分为分配信道和业务信道来实现的。 分配信道包括分配段，业务信道包括业务段。 流量段是用于传输流量数据的基本业务信道资源单元，具有规定的有限时间间隔和带宽。 每个流量段以规定的方式与所谓的分配段相关联。 一个或多个业务段可以与特定分配段相关联。 基站通过无线终端要使用特定业务段的分配段广播。 这通过为分配给分配段中的特定业务段的特定无线终端发送简单的标识符来实现。 然后，每个有源无线终端监视所有接收的分配段以检测任何业务信道分配。 一旦无线终端在分配段中检测到其标识符，它继续接收/发送与包括检测到的标识符的分配段相关联的业务段中的业务数据。

公开(公告)号：US20070173269A1

公开(公告)日：2007-07-26

申请号：US10957192

申请日：2004-10-01

申请人： Rajiv Laroia ,  Junyi Li ,  Sathyadev Uppala

发明人： Rajiv Laroia ,  Junyi Li ,  Sathyadev Uppala

IPC分类号： H04Q7/00 ,  H04B7/00

CPC分类号： H04L12/189 ,  H04W68/00 ,  H04W72/005

摘要： In a wireless communications system, multicast messages are transported to groups of wireless terminals by employing a common control channel to transmit a multicast paging message indicating that multicast traffic data is to be transmitted to a particular group of wireless terminals. In an embodiment of the invention, the essential information transmitted in the common control channel is the identifier of the group of wireless terminals intended to receive the multicast traffic data and the location of a traffic channel on which the multicast traffic is to be transported in a channel resource which may include a representation of bandwidth and time interval. In accordance with an aspect of the invention, the common control channel is associated with a traffic channel in a prescribed fixed manner. Further, the traffic channel used for the purpose of multicast can be the same traffic channel used for the normal point-to-point transmission of traffic data.

摘要翻译： 在无线通信系统中，通过采用公共控制信道将组播消息传送到无线终端组，以将表示组播业务数据要传送到特定无线终端组的组播寻呼消息。 在本发明的一个实施例中，在公共控制信道中发送的基本信息是旨在接收多播业务数据的无线终端组的标识符以及要在其中传输组播业务的业务信道的位置 信道资源，其可以包括带宽和时间间隔的表示。 根据本发明的一个方面，公共控制信道以规定的固定方式与业务信道相关联。 此外，用于组播目的的业务信道可以是用于业务数据的正常点对点传输的相同业务信道。

公开(公告)号：US20050245264A1

公开(公告)日：2005-11-03

申请号：US11174793

申请日：2005-07-05

申请人： Rajiv Laroia ,  Junyi Li ,  Sathyadev Uppala

发明人： Rajiv Laroia ,  Junyi Li ,  Sathyadev Uppala

IPC分类号： H04W76/04 ,  H04B7/005 ,  H04L12/56 ,  H04M1/73 ,  H04W24/00 ,  H04W28/04 ,  H04W52/02 ,  H04W52/08 ,  H04W52/28 ,  H04W52/60 ,  H04W68/02 ,  H04W72/00 ,  H04W72/12 ,  H04Q7/20

CPC分类号： H04W16/12 ,  H04W16/14 ,  H04W24/00 ,  H04W36/06 ,  H04W52/0235 ,  H04W52/028 ,  H04W52/08 ,  H04W52/281 ,  H04W52/283 ,  H04W52/286 ,  H04W52/287 ,  H04W52/288 ,  H04W52/60 ,  H04W68/02 ,  H04W68/025 ,  H04W72/00 ,  H04W72/0413 ,  H04W72/048 ,  Y02D70/23

摘要： The use of multiple states of mobile communication device operation to allow a single base station to support a relatively large number of mobile nodes is described. Various states require different amounts of communications resources, e.g., bandwidth and/or control signaling. Different numbers of control channels are monitored during different states of operation. A mobile node monitors during a first state of operation, e.g., the on-state, a first control channel to detect control signals in segments of the first control channel intended for the mobile node, detects a period of reduced control signaling to said mobile node on said first control channel, and then, in response to detecting a period of reduced control signal signaling to the mobile node, transitions from said first state to a second state of operation. During the second state of operation fewer control channels are monitored and the first control channel is not monitored.

摘要翻译： 描述了使用移动通信设备操作的多种状态来允许单个基站支持相对大量的移动节点。 各种状态需要不同数量的通信资源，例如带宽和/或控制信令。 在不同的操作状态下监视不同数量的控制通道。 移动节点在第一操作状态（例如，接通状态）中监视第一控制信道，以检测针对移动节点的第一控制信道的段中的控制信号，检测到对所述移动节点的减少控制信令的周期 在所述第一控制信道上，然后响应于检测到对移动节点的减少的控制信号信令的周期，从所述第一状态转换到第二操作状态。 在第二操作状态期间，监控较少的控制信道，并且不监视第一控制信道。

公开(公告)号：US20050130665A1

公开(公告)日：2005-06-16

申请号：US10957194

申请日：2004-10-01

申请人： Rajiv Laroia ,  Junyi Li ,  Sathyadev Uppala

发明人： Rajiv Laroia ,  Junyi Li ,  Sathyadev Uppala

IPC分类号： H04L12/56 ,  H04W28/06 ,  H04W48/08 ,  H04W48/16 ,  H04W72/04 ,  H04W72/12 ,  H04W72/14 ,  H04Q7/20

CPC分类号： H04W72/14 ,  H04W28/06 ,  H04W48/08 ,  H04W48/16 ,  H04W72/00 ,  H04W72/04 ,  H04W72/042

摘要： Allocation of a wireless communications system channel resource is managed by utilizing traffic segment allocation. This is realized by partitioning the channel resource into an assignment channel and a traffic channel in a fixed manner. The assignment channel includes assignment segments and the traffic channel includes traffic segments. The traffic segment is the basic traffic channel resource unit used to transport traffic data and has a prescribed finite time interval and bandwidth. Each traffic segment is associated with a so-called assignment segment in a prescribed manner. One or more traffic segments may be associated with a particular assignment segment. A base station broadcasts via an assignment segment which wireless terminal is to use a particular traffic segment. This is realized by transmitting a simply identifier for the particular wireless terminal assigned to the particular traffic segment in the assignment segment. Then, each active wireless terminal monitors all of the received assignment segments to detect any traffic channel assignments. Once a wireless terminal detects its identifier in an assignment segment, it proceeds to receive/transmit the traffic data in the traffic segment associated with the assignment segment including the detected identifier.

摘要翻译： 通过利用业务段分配来管理无线通信系统信道资源的分配。 这是通过以固定的方式将信道资源划分为分配信道和业务信道来实现的。 分配信道包括分配段，业务信道包括业务段。 流量段是用于传输流量数据的基本业务信道资源单元，具有规定的有限时间间隔和带宽。 每个流量段以规定的方式与所谓的分配段相关联。 一个或多个业务段可以与特定分配段相关联。 基站通过无线终端要使用特定业务段的分配段广播。 这通过为分配给分配段中的特定业务段的特定无线终端发送简单的标识符来实现。 然后，每个有源无线终端监视所有接收的分配段以检测任何业务信道分配。 一旦无线终端在分配段中检测到其标识符，它继续接收/发送与包括检测到的标识符的分配段相关联的业务段中的业务数据。

公开(公告)号：US20080063099A1

公开(公告)日：2008-03-13

申请号：US11932767

申请日：2007-10-31

申请人： Rajiv Laroia ,  Junyi Li ,  Sathyadev Uppala

发明人： Rajiv Laroia ,  Junyi Li ,  Sathyadev Uppala

IPC分类号： H04B1/66

CPC分类号： H04L5/0007 ,  H04L5/023 ,  H04L27/2602 ,  H04L27/2614 ,  H04L27/2636

摘要： A method for reducing the peak-to-average ratio in an OFDM communication signal is provided. The method includes defining a constellation having a plurality of symbols, defining a symbol duration for the OFDM communication signal, and defining a plurality of time instants in the symbol duration. A plurality of tones are allocated to a particular communication device, and a discrete signal is constructed in the time domain by mapping symbols from the constellation to the time instants. A continuous signal is generated by applying an interpolation function to the discrete signal such that the continuous signal only includes sinusoids having frequencies which are equal to the allocated tones.

摘要翻译： 提供了一种用于降低OFDM通信信号中的峰均比的方法。 该方法包括定义具有多个符号的星座，定义OFDM通信信号的符号持续时间，以及定义符号持续时间中的多个时刻。 将多个音调分配给特定的通信设备，并且通过将符号从星座映射到时刻在时域中构建离散信号。 通过对离散信号应用内插函数来生成连续信号，使得连续信号仅包括具有等于所分配音调的频率的正弦曲线。

公开(公告)号：US20070149227A1

公开(公告)日：2007-06-28

申请号：US11333792

申请日：2006-01-17

申请人： Vladimir Parizhsky ,  Rajiv Laroia ,  Junyi Li ,  Sathyadev Uppala ,  Arnab Das

发明人： Vladimir Parizhsky ,  Rajiv Laroia ,  Junyi Li ,  Sathyadev Uppala ,  Arnab Das

IPC分类号： H04Q7/20 ,  H04B7/00

CPC分类号： H04W72/0453 ,  H04L1/0026 ,  H04L27/2602 ,  H04L47/10 ,  H04W24/02 ,  H04W24/10 ,  H04W28/12 ,  H04W28/18 ,  H04W28/24 ,  H04W72/005 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/1221 ,  H04W72/1236 ,  H04W72/1242 ,  H04W72/1252 ,  H04W72/1284 ,  H04W74/0875

摘要： Wireless terminals and base stations support multiple modes of dedicated control channel operation wherein wireless terminals are allocated different amounts of dedicated uplink resources for reporting control information. A set of dedicated control channel segments is utilized by a wireless terminal to communicate uplink control information reports to its serving base station attachment point. Full tone and split-tone modes of dedicated control channel operation are supported. In full tone mode, a single wireless terminal is allocated each of the dedicated control channel segments associated with a single logical tone. In split tone mode, dedicated control channel segments associated with a single logical tone are allocated between different wireless terminals, with each of the multiple wireless terminals receiving a different non-overlapping subset of the dedicated control channel segments. Logical dedicated control channel tones can be dynamically reallocated for full-tone mode use or split tone mode use.

摘要翻译： 无线终端和基站支持专用控制信道操作的多种模式，其中无线终端被分配不同量的专用上行链路资源用于报告控制信息。 无线终端利用一组专用控制信道段，将上行链路控制信息报告传送到其服务基站附着点。 支持专用控制通道操作的全音和分频模式。 在全音模式下，分配与单个逻辑音调相关联的每个专用控制信道段的单个无线终端。 在分离音模式中，与单个逻辑音调相关联的专用控制信道段在不同的无线终端之间分配，多个无线终端中的每一个接收专用控制信道段的不重叠子集。 可以动态地重新分配逻辑专用控制信道音调以进行全音色模式使用或分离音模式的使用。

公开(公告)号：US20060083267A1

公开(公告)日：2006-04-20

申请号：US11251103

申请日：2005-10-14

申请人： Rajiv Laroia ,  Vladimir Parizhsky ,  Junyi Li ,  Sathyadev Uppala

发明人： Rajiv Laroia ,  Vladimir Parizhsky ,  Junyi Li ,  Sathyadev Uppala

IPC分类号： H04J3/06

CPC分类号： H04L7/08 ,  H04B1/40 ,  H04L27/2613 ,  H04L27/2655

摘要： Improved beacon signaling methods are described. Beacon signals are transmitted on the same tone in at least two consecutive symbol periods facilitating accurate energy measurements over a symbol period even if timing synchronization with the transmitter is not maintained. A low power wideband signal is also combined with the beacon signal to facilitate channel estimation and other operations such as timing synchronization operations.

摘要翻译： 描述了改进的信标信令方法。 即使与发射机的定时同步不被维持，信标信号在至少两个连续符号周期中以相同的音调发送，从而促进了符号周期的精确能量测量。 低功率宽带信号也与信标信号组合以便于信道估计和诸如定时同步操作的其它操作。