公开(公告)号：US09661519B2

公开(公告)日：2017-05-23

申请号：US11486601

申请日：2006-07-14

申请人： Arnab Das ,  Sundeep Rangan ,  Pablo Anigstein ,  Junyi Li ,  Sathyadev Venkata Uppala ,  Rajiv Laroia

发明人： Arnab Das ,  Sundeep Rangan ,  Pablo Anigstein ,  Junyi Li ,  Sathyadev Venkata Uppala ,  Rajiv Laroia

IPC分类号： H04W24/10 ,  H04L1/00 ,  H04W24/00

CPC分类号： H04W24/10 ,  H04L1/0006 ,  H04L1/0026 ,  H04W24/00

摘要： Techniques for efficiently sending reports in a wireless communication system are described. Reports may be sent repetitively in accordance with a reporting format. A terminal receives an assignment of a control channel used to send reports and determines a reporting format to use based on the assignment. The reporting format indicates a specific sequence of reports sent in specific locations of a control channel frame. The terminal generates a set of reports for each reporting interval and arranges the set of reports in accordance with the reporting format. The terminal repetitively sends a plurality of sets of reports in a plurality of reporting intervals. Reports may also be sent adaptively based on operating conditions. An appropriate reporting format may be selected based on the operating conditions of the terminal, which may be characterized by environment (e.g., mobility), capabilities, QoS, and/or other factors.

公开(公告)号：US09338767B2

公开(公告)日：2016-05-10

申请号：US11333792

申请日：2006-01-17

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

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

IPC分类号： H04B7/00 ,  H04W72/04 ,  H04L12/801 ,  H04W28/18 ,  H04W72/00 ,  H04W74/08 ,  H04L1/00 ,  H04L27/26 ,  H04W24/10 ,  H04W28/12 ,  H04W28/24 ,  H04W72/12

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 control channel operation wherein wireless terminals are allocated different amounts of uplink resources for reporting control information. A set of 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 control channel operation are supported. In full tone mode, a single wireless terminal is allocated each of the control channel segments associated with a single logical tone. In split tone mode, 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 control channel segments. Logical 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多种模式的控制信道操作，其中无线终端被分配不同量的用于报告控制信息的上行链路资源。 无线终端利用一组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。 支持全频和分频模式的控制通道操作。 在全音模式下，分配与单个逻辑音调相关联的每个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控制信道分段被分配在不同无线终端之间，多个无线终端中的每一个接收控制信道分段的不同的非重叠子集。 可以动态地重新分配逻辑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：US08437251B2

公开(公告)日：2013-05-07

申请号：US11333790

申请日：2006-01-17

申请人： Arnab Das ,  Rajiv Laroia ,  Junyi Li

发明人： Arnab Das ,  Rajiv Laroia ,  Junyi Li

IPC分类号： H04L12/26

CPC分类号： H04W72/0413 ,  H04W72/1252 ,  H04W72/1284

摘要： An uplink dedicated control channel reporting structure includes a plurality of different bit size reports, e.g. 1 bit, 3 bit and 4 bit reports, for reporting a wireless terminal's backlog information of uplink traffic request group queues. Smaller bit size reports are transmitted more frequently than larger reports. A 1 bit request report indicates whether or not there are any MAC frames of information to be communicated in a set of two request group queues. A 3 bit request report indicates an amount of backlog information corresponding to a first set of request group queues and a second set of request group queues. A 4 bit request report indicates an amount of backlog information corresponding to a set of request group queues. The 4 bit request report is capable of reporting information on any of a plurality of uplink traffic channel request group queues being maintained by the wireless terminal.

摘要翻译： 上行链路专用控制信道报告结构包括多个不同比特大小的报告，例如， 1位，3位和4位报告，用于报告无线终端的上行流量请求组队列的积压信息。 比较大的报告传送的位数较小的报告更频繁。 1位请求报告指示在一组两个请求组队列中是否存在要传送的任何MAC帧的信息。 3位请求报告指示对应于第一组请求组队列和第二组请求组队列的积压信息量。 4位请求报告指示与一组请求组队列对应的积压信息量。 4位请求报告能够报告由无线终端维护的多个上行链路业务信道请求组队列中的任一个的信息。

公开(公告)号：US08406282B2

公开(公告)日：2013-03-26

申请号：US11857750

申请日：2007-09-19

申请人： Junyi Li ,  Arnab Das ,  Rajiv Laroia

发明人： Junyi Li ,  Arnab Das ,  Rajiv Laroia

IPC分类号： H04J11/00

CPC分类号： H04L5/1469 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2656

摘要： Systems and methodologies are described that facilitate generating and/or analyzing downlink transmission units in OFDM TDD environments. Strip OFDM symbols may be selectively inserted within downlink transmission units; for example, the position of strip OFDM symbols may vary from cell to cell. Further, the position may be a function of a characteristic of a cell (e.g., cell identifier) and/or an expected drift. Moreover, a strip OFDM symbol may be interjected at a location in a downlink transmission unit so as to mitigate alignment with disparate strip OFDM symbols in downlink transmission units associated with differing cells.

摘要翻译： 描述了有助于在OFDM TDD环境中生成和/或分析下行链路传输单元的系统和方法。 带状OFDM符号可以有选择地插入在下行链路传输单元内; 例如，带状OFDM符号的位置可以随单元而变化。 此外，该位置可以是小区的特性（例如，小区标识符）和/或预期漂移的函数。 此外，带状OFDM符号可以被插入在下行链路传输单元中的位置处，以便在与不同小区相关联的下行链路传输单元中减轻与不同条带OFDM符号的对准。

公开(公告)号：US07990840B2

公开(公告)日：2011-08-02

申请号：US11369899

申请日：2006-03-07

申请人： Rajiv Laroia ,  Arnab Das ,  Junyi Li

发明人： Rajiv Laroia ,  Arnab Das ,  Junyi Li

IPC分类号： H04J11/00 ,  H04J1/00 ,  H04W4/00

CPC分类号： H04W52/143 ,  H04B7/022 ,  H04B7/0491 ,  H04B7/0671 ,  H04H20/22 ,  H04H20/26 ,  H04H20/72 ,  H04L27/2604 ,  H04W52/322 ,  H04W52/42 ,  H04W52/54

摘要： First and second transmitters transmit signals communicating the same information, e.g., program segment, but at different times. Different carriers may, but need not be, used by the different transmitters. If a wireless terminal can not recover broadcast segment information from one carrier, the wireless terminal can switch to another transmitter and recover the information, e.g., on another carrier, since the broadcasts are intentionally offset in time. In some embodiments, the timing is offset such that a single channel receiver is able to recover signals corresponding to the same program segment from two sources, and perform a decoding and information recovery using input from both sources, where recovery using input from a single source is not possible. Symbol level timing synchronization of base stations is not required thereby allowing for simpler implementations and/or lower overhead, as compared to systems which require base stations to be synchronized to the symbol timing level.

摘要翻译： 第一和第二发射机发送传送相同信息的信号，例如程序段，但是在不同的时间。 不同的载波可以但不一定被不同的发射机使用。 如果无线终端无法从一个载波恢复广播段信息，则无线终端可以切换到另一个发射机，并且例如在另一载波上恢复信息，因为广播被有意地及时地偏移。 在一些实施例中，定时被偏移，使得单个信道接收机能够从两个源恢复对应于相同节目段的信号，并且使用来自两个源的输入执行解码和信息恢复，其中使用来自单个源的输入进行恢复 不可能。 与要求基站与符号定时电平同步的系统相比，不需要基站的符号电平定时同步，从而允许更简单的实现和/或较低的开销。

公开(公告)号：US20100211540A9

公开(公告)日：2010-08-19

申请号：US11486601

申请日：2006-07-14

申请人： Arnab Das ,  Sundeep Rangan ,  Pablo Anigstein ,  Junyi Li ,  Sathyadev Venkata Uppala ,  Rajiv Laroia

发明人： Arnab Das ,  Sundeep Rangan ,  Pablo Anigstein ,  Junyi Li ,  Sathyadev Venkata Uppala ,  Rajiv Laroia

IPC分类号： G06F17/30

CPC分类号： H04W24/10 ,  H04L1/0006 ,  H04L1/0026 ,  H04W24/00

摘要： Techniques for efficiently sending reports in a wireless communication system are described. Reports may be sent repetitively in accordance with a reporting format. A terminal receives an assignment of a control channel used to send reports and determines a reporting format to use based on the assignment. The reporting format indicates a specific sequence of reports sent in specific locations of a control channel frame. The terminal generates a set of reports for each reporting interval and arranges the set of reports in accordance with the reporting format. The terminal repetitively sends a plurality of sets of reports in a plurality of reporting intervals. Reports may also be sent adaptively based on operating conditions. An appropriate reporting format may be selected based on the operating conditions of the terminal, which may be characterized by environment (e.g., mobility), capabilities, QoS, and/or other factors.

摘要翻译： 描述在无线通信系统中有效地发送报告的技术。 可以按照报告格式重复发送报告。 终端接收用于发送报告的控制信道的分配，并根据分配确定要使用的报告格式。 报告格式指示在控制信道帧的特定位置发送的特定报告序列。 终端为每个报告间隔生成一组报告，并根据报告格式安排报告集。 终端在多个报告间隔重复发送多组报告。 报告也可以根据操作条件自适应地发送。 可以基于可以由环境（例如，移动性），能力，QoS和/或其他因素来表征的终端的操作条件来选择适当的报告格式。

公开(公告)号：US08989084B2

公开(公告)日：2015-03-24

申请号：US11549604

申请日：2006-10-13

申请人： Prashanth Hande ,  Arnab Das ,  Junyi Li ,  Sundeep Rangan ,  Rajiv Laroia

发明人： Prashanth Hande ,  Arnab Das ,  Junyi Li ,  Sundeep Rangan ,  Rajiv Laroia

IPC分类号： H04W4/00 ,  H04W16/08 ,  H04W16/06

CPC分类号： H04W16/08 ,  H04B17/24 ,  H04B17/382 ,  H04W4/06 ,  H04W16/06 ,  H04W24/10 ,  H04W36/20 ,  H04W52/143 ,  H04W52/343 ,  H04W52/40 ,  H04W72/082

摘要： Methods and apparatus are described where loading information regarding loading conditions at a neighboring base station is received at a first base station and then communicated, e.g., broadcast, by the first base station to mobiles within the cell in which the first base station is located. Since the neighbor base station's loading information is being communicated to a mobile currently connected to the first base station via a reliable communications channel of the first base station, the mobile can be expected to be able to reliably recover loading factor information corresponding to not only the first base station but to the neighboring base station. By utilizing such loading factor information, the mobile can generate an improved uplink interference report. The first base station receives such interference reports from wireless terminals in its cell, facilitating efficient resource allocation and interference control.

摘要翻译： 描述了在第一基站处接收关于相邻基站处的负载条件的信息的装置，然后由第一基站传送（例如，广播）到第一基站所在的小区内的移动台。 由于相邻基站的载入信息通过第一基站的可靠通信信道被传送到当前连接到第一基站的移动台，所以可以期望移动台能够可靠地恢复与不仅仅是 第一个基站，但是到邻近的基站。 通过利用这种负载因子信息，移动台可以产生改进的上行链路干扰报告。 第一基站从其小区中的无线终端接收到这种干扰报告，有利于高效的资源分配和干扰控制。

公开(公告)号：US08811348B2

公开(公告)日：2014-08-19

申请号：US11333788

申请日：2006-01-17

申请人： Sundeep Rangan ,  Rajiv Laroia ,  Arnab Das ,  Junyi Li ,  John Fan

发明人： Sundeep Rangan ,  Rajiv Laroia ,  Arnab Das ,  Junyi Li ,  John Fan

IPC分类号： H04W4/00

CPC分类号： H04W24/10 ,  H04B17/24 ,  H04B17/336

摘要： A wireless terminal measures the received power of a tone corresponding to an intention base station null output, measures the received power of pilot signals, and determines a signal to noise ratio of the received pilot signal. The wireless terminal calculates a downlink signal to noise ratio saturation level representative of the SNR of a received downlink signal that the wireless terminal would measure on a received signal transmitted by the base station at infinite power. The calculated downlink signal to noise ratio saturation level is a function of the determined interference power, the measured received pilot signal power, and the determined pilot signal SNR. A report is generated corresponding to one of a plurality of quantized levels, the selected quantized level being the closest representation to the calculated downlink signal to noise ratio saturation level. The generated report is communicated using a dedicated control channel segment in a predetermined uplink timing structure.

摘要翻译： 无线终端测量对应于意图基站空输出的音调的接收功率，测量导频信号的接收功率，并确定接收到的导频信号的信噪比。 无线终端计算表示无线终端将以无限大功率发送的接收信号对接收到的下行链路信号的SNR进行SNR测量的下行链路信噪比饱和度。 所计算的下行链路信噪比饱和电平是所确定的干扰功率，测量的接收导频信号功率和确定的导频信号SNR的函数。 产生对应于多个量化电平中的一个的报告，所选择的量化电平是与所计算的下行链路信噪比饱和电平最接近的表示。 使用专用控制信道段在预定的上行链路定时结构中传送所生成的报告。

公开(公告)号：US08774846B2

公开(公告)日：2014-07-08

申请号：US11621955

申请日：2007-01-10

申请人： Rajiv Laroia ,  Sundeep Rangan ,  Arnab Das ,  Frank A. Lane ,  Junyi Li

发明人： Rajiv Laroia ,  Sundeep Rangan ,  Arnab Das ,  Frank A. Lane ,  Junyi Li

IPC分类号： H04B7/00 ,  H04W36/00

CPC分类号： H04W40/244 ,  H04J3/0602 ,  H04L5/0016 ,  H04L5/0035 ,  H04L5/0048 ,  H04L27/2601 ,  H04L27/261 ,  H04W8/005 ,  H04W16/14 ,  H04W28/04 ,  H04W28/18 ,  H04W36/16 ,  H04W36/24 ,  H04W40/24 ,  H04W48/08 ,  H04W48/16 ,  H04W48/20 ,  H04W52/0229 ,  H04W52/04 ,  H04W72/02 ,  H04W76/14 ,  H04W84/042 ,  H04W84/18 ,  H04W88/02 ,  H04W88/04 ,  H04W88/06 ,  H04W88/10 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/22 ,  Y02D70/23

摘要： A portable wireless terminal generates and transmits a beacon signal. The beacon signal includes a sequence of beacon signal bursts, each beacon signal burst including one or more beacon symbols. A beacon symbol is transmitted using the air link resources of a beacon symbol transmission unit at a relatively high transmission power level with respect to user data symbols transmitted from the same wireless terminal, thus facilitating easy detection by other wireless terminals. The beacon symbols of the beacon signal occupy a small fraction of the total available air link resources. Beacon signals can, and sometimes do, convey wireless terminal identification information, via the location of the beacon symbols within the portion of the air link resource reserved for beacon symbol transmission units.

摘要翻译： 便携式无线终端生成并发送信标信号。 信标信号包括信标信号脉冲序列，每个信标信号脉冲串包括一个或多个信标符号。 相对于从同一无线终端发送的用户数据符号，以相对高的发送功率电平的信标符号发送单元的空中链路资源发送信标符号，便于其他无线终端的容易检测。 信标信号的信标符号占据总可用空中链路资源的一小部分。 信标信号可以并且有时可以通过为为信标符号传输单元预留的空中链路资源的部分内的信标符号的位置传送无线终端识别信息。

公开(公告)号：US08743843B2

公开(公告)日：2014-06-03

申请号：US11621957

申请日：2007-01-10

申请人： Rajiv Laroia ,  Sundeep Rangan ,  Arnab Das ,  Frank A. Lane ,  Junyi Li

发明人： Rajiv Laroia ,  Sundeep Rangan ,  Arnab Das ,  Frank A. Lane ,  Junyi Li

IPC分类号： H04J3/00

CPC分类号： H04W40/244 ,  H04J3/0602 ,  H04L5/0016 ,  H04L5/0035 ,  H04L5/0048 ,  H04L27/2601 ,  H04L27/261 ,  H04W8/005 ,  H04W16/14 ,  H04W28/04 ,  H04W28/18 ,  H04W36/16 ,  H04W36/24 ,  H04W40/24 ,  H04W48/08 ,  H04W48/16 ,  H04W48/20 ,  H04W52/0229 ,  H04W52/04 ,  H04W72/02 ,  H04W76/14 ,  H04W84/042 ,  H04W84/18 ,  H04W88/02 ,  H04W88/04 ,  H04W88/06 ,  H04W88/10 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/22 ,  Y02D70/23

摘要： Wireless terminal beacon signaling is used to achieve timing synchronization between two wireless terminals in a wireless communication system, e.g., in an ad hoc network lacking a centralized timing reference. An exemplary timing structure used by an individual wireless terminal includes a beacon transmission time interval, a beacon monitoring time interval and a silence time interval. A first wireless terminal monitoring for beacon signals from other wireless terminals, detects a beacon signal portion from a second wireless terminal and determines a timing adjustment as a function of the detected beacon signal portion. The first wireless terminal applies the determined timing adjustment, e.g., time shifting its timing structure, such that its beacon signal can be detected by the second wireless terminal. Implementation of the determined timing adjustment sets the timing structures of the two wireless terminals to have a fixed relationship thereby allowing for coordinated communications including a peer-to-peer communications session.

摘要翻译： 无线终端信标信令用于实现无线通信系统中的两个无线终端之间的定时同步，例如在缺乏集中定时参考的自组织网络中。 单个无线终端使用的示例性定时结构包括信标发送时间间隔，信标监视时间间隔和静默时间间隔。 监测来自其他无线终端的信标信号的第一无线终端从第二无线终端检测信标信号部分，并根据检测到的信标信号部分确定定时调整。 第一无线终端应用确定的定时调整，例如时移其定时结构，使得其信标信号可被第二无线终端检测。 确定的定时调整的实现将两个无线终端的定时结构设置为具有固定关系，从而允许包括对等通信会话的协调通信。