公开(公告)号：US08229427B2

公开(公告)日：2012-07-24

申请号：US11487259

申请日：2006-07-14

Applicant: Rajiv Laroia ,  Junyi Li ,  Pablo Anigstein ,  Sathyadev Venkata Uppala

Inventor： Rajiv Laroia ,  Junyi Li ,  Pablo Anigstein ,  Sathyadev Venkata Uppala

IPC: H04W4/00 ,  H04M1/00 ,  H04J3/24 ,  H04B7/216

CPC classification number: H04W76/11 ,  H04W8/26 ,  H04W48/12 ,  H04W72/04 ,  H04W92/10

Abstract: A terminal is assigned an active identifier for use while in an active state of a connection with a base station. The base station periodically broadcasts the status of the active identifiers for that base station, e.g., via status validation bits that indicate whether each active identifier is currently assigned to a terminal or not assigned to any terminal. The base station may also broadcast the identity (e.g., a scrambling mask) of the terminal assigned with each active identifier that is currently in use. If a terminal believes that it is assigned a particular active identifier, then the terminal checks the status validation bit for this active identifier. If this status validation bit indicates that the active identifier is currently in use, then the terminal may further check the scrambling mask sent for the active identifier in order to determine whether the terminal is actually assigned the active identifier.

Abstract translation: 在处于与基站的连接的活动状态时，为终端分配有效标识符。 基站周期性地广播该基站的活动标识符的状态，例如，经由状态验证比特，其指示每个活动标识符是否当前分配给终端或者未分配给任何终端。 基站还可以广播分配有当前正在使用的每个活动标识符的终端的身份（例如，加扰掩码）。 如果终端认为分配了特定的活动标识符，则终端检查该活动标识符的状态验证位。 如果该状态验证位指示当前正在使用的活动标识符，则终端可进一步检查为活动标识符发送的加扰掩码，以确定终端是否实际分配了活动标识符。

公开(公告)号：US08139660B2

公开(公告)日：2012-03-20

申请号：US11486609

申请日：2006-07-14

Applicant: Pablo Anigstein ,  Prashanth Hande ,  Junyi Li ,  Rajiv Laroia ,  Sathyadev Venkata Uppala

Inventor： Pablo Anigstein ,  Prashanth Hande ,  Junyi Li ,  Rajiv Laroia ,  Sathyadev Venkata Uppala

IPC: H04K1/10

CPC classification number: H04L27/2602 ,  H04L5/0007 ,  H04L27/2655

Abstract: User specific modulation-symbol scrambling is implemented for various uplink segments, e.g., uplink traffic acknowledgement channel (ULTACH), uplink state request channel (ULSRCH), and uplink dedicated control channel (ULDCCH) segments. A wireless terminal is assigned a wireless terminal scrambling identifier. A set of ordered input modulation symbols are determined for an uplink dedicated segment to which user specific scrambling is to be applied. One bit of the assigned wireless terminal scrambling identifier is associated with each of the ordered input modulation symbols of a segment in accordance with a predetermined mapping. For each input modulation symbol a scrambling operation, e.g., a phase rotation of the input modulation symbol, is performed as a function of the associated user specific scrambling identifier bit to obtain a corresponding output modulation symbol. A value of (0,1) for a scrambling ID bit is associated with a (first, second) amount of phase rotation, e.g., (0, 180) degrees, respectively.

Abstract translation: 针对各种上行链路段（例如，上行链路业务确认信道（ULTACH），上行链路状态请求信道（ULSRCH）和上行链路专用控制信道（ULDCCH））段实现用户特定的调制符号加扰。 无线终端被分配无线终端扰乱标识符。 针对要应用用户特定加扰的上行链路专用段确定一组有序输入调制符号。 所分配的无线终端扰乱标识符的一个比特根据预定的映射与段的每个有序输入调制符号相关联。 对于每个输入调制符号，作为输入调制符号的相位旋转的加扰操作被执行为相关联的用户特定加扰标识符位的函数，以获得相应的输出调制符号。 加扰ID位的（0,1）的值分别与（第一，第二）相位旋转量相关联，例如（0,180）度。

公开(公告)号：US20110235745A1

公开(公告)日：2011-09-29

申请号：US13158196

申请日：2011-06-10

Applicant: Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

Inventor： Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

IPC: H04L27/00

CPC classification number: H04L5/0007 ,  H04L5/023 ,  H04L27/2602 ,  H04L27/2614 ,  H04L27/2636

Abstract: 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.

公开(公告)号：US20110235733A1

公开(公告)日：2011-09-29

申请号：US13158170

申请日：2011-06-10

Applicant: Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

Inventor： Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

IPC: H04L27/28

CPC classification number: H04L5/0007 ,  H04L5/023 ,  H04L27/2602 ,  H04L27/2614 ,  H04L27/2636

Abstract: 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.

Abstract translation: 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：US07990844B2

公开(公告)日：2011-08-02

申请号：US12759639

申请日：2010-04-13

Applicant: Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

Inventor： Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

IPC: H04J11/00 ,  H04B7/216

CPC classification number: H04L5/0007 ,  H04L5/023 ,  H04L27/2602 ,  H04L27/2614 ,  H04L27/2636

Abstract: 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.

公开(公告)号：US07941173B2

公开(公告)日：2011-05-10

申请号：US11251103

申请日：2005-10-14

Applicant: Rajiv Laroia ,  Vladimir Parizhsky ,  Junyi Li ,  Sathyadev Venkata Uppala

Inventor： Rajiv Laroia ,  Vladimir Parizhsky ,  Junyi Li ,  Sathyadev Venkata Uppala

IPC: H04B7/00 ,  H04Q7/20

CPC classification number: H04L7/08 ,  H04B1/40 ,  H04L27/2613 ,  H04L27/2655

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100195487A1

公开(公告)日：2010-08-05

申请号：US12759634

申请日：2010-04-13

Applicant: Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

Inventor： Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

IPC: H04J11/00

CPC classification number: H04L5/0007 ,  H04L5/023 ,  H04L27/2602 ,  H04L27/2614 ,  H04L27/2636

Abstract: 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.

公开(公告)号：US20100195486A1

公开(公告)日：2010-08-05

申请号：US12759626

申请日：2010-04-13

Applicant: Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

Inventor： Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

IPC: H04J11/00

CPC classification number: H04L5/0007 ,  H04L5/023 ,  H04L27/2602 ,  H04L27/2614 ,  H04L27/2636

Abstract: 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.

Abstract translation: 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：US20100195483A1

公开(公告)日：2010-08-05

申请号：US12759630

申请日：2010-04-13

Applicant: Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

Inventor： Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

IPC: H04L27/28

CPC classification number: H04L5/0007 ,  H04L5/023 ,  H04L27/2602 ,  H04L27/2614 ,  H04L27/2636

Abstract: 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.

公开(公告)号：US07668573B2

公开(公告)日：2010-02-23

申请号：US10636506

申请日：2003-08-07

Applicant: Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

Inventor： Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

IPC: H04W1/00

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。