公开(公告)号：US08547857B2

公开(公告)日：2013-10-01

申请号：US11943489

申请日：2007-11-20

Applicant: Xinzhou Wu ,  Sundeep Rangan ,  Prashanth Hande ,  Arnab Das ,  Junyi Li

Inventor： Xinzhou Wu ,  Sundeep Rangan ,  Prashanth Hande ,  Arnab Das ,  Junyi Li

IPC: H04W72/00 ,  H04W4/00 ,  H04W24/00 ,  H04L12/26 ,  H04B15/00

CPC classification number: H04W72/082 ,  H04W72/0406 ,  H04W72/12

Abstract: Systems and methodologies are described that facilitate scheduling uplink transmissions. For instance, a time sharing scheme can be utilized such that differing mobile devices can be scheduled to transmit during differing time slots; however, it is also contemplated that a static scheme can be employed. Pursuant to an illustration, an interference budget can be combined with a time varying weighting factor associated with a base station; the weighting factor can be predefined and/or adaptively adjusted (e.g., based upon a load balancing mechanism). Moreover, the weighted interference budget can be leveraged for selecting mobile devices for uplink transmission (e.g., based at least in part upon path loss ratios of the mobile devices). Further, disparate interference budgets can be utilized by differing channels of a sector at a particular time. Also, for example, a base station can assign a loading factor to be utilized by wireless terminal(s) for generating channel quality report(s).

公开(公告)号：US08520699B2

公开(公告)日：2013-08-27

申请号：US12963889

申请日：2010-12-09

Applicant: Niranjan N. Ratnakar ,  Prashanth Hande ,  Sundeep Rangan ,  Atul Maharshi ,  Subhadeep P. Roy ,  Ritesh K. Madan ,  Ozge Koymen ,  Siddharth Ray

Inventor： Niranjan N. Ratnakar ,  Prashanth Hande ,  Sundeep Rangan ,  Atul Maharshi ,  Subhadeep P. Roy ,  Ritesh K. Madan ,  Ozge Koymen ,  Siddharth Ray

IPC: H04J3/16 ,  H04L12/28 ,  H04L1/18

CPC classification number: H04W24/10 ,  H04L1/0026 ,  H04L1/1867 ,  H04L65/608 ,  H04L65/80

Abstract: The apparatus and methods described herein are used to provide a communication quality feedback of an end-to-end communication path between an application transmitter and an application receiver. One method includes transmitting data from the application transmitter to the application receiver via the end-to-end communication path, the end-to-end communication path having at least one wireless link with a wireless transmitter and a wireless receiver, generating, at the wireless transmitter, a first communication quality feedback message, and transmitting the first communication quality feedback message from the wireless transmitter to the application transmitter in a standardized format.

Abstract translation: 本文描述的装置和方法用于提供应用发射机和应用接收机之间的端到端通信路径的通信质量反馈。 一种方法包括经由端对端通信路径将数据从应用发射机发送到应用接收机，端到端通信路径具有与无线发射机和无线接收机的至少一个无线链路，在 无线发射机，第一通信质量反馈消息，以及以标准格式从无线发射机向应用发射机发送第一通信质量反馈消息。

公开(公告)号：US08320928B2

公开(公告)日：2012-11-27

申请号：US13218647

申请日：2011-08-26

Applicant: Xinzhou Wu ,  Sundeep Rangan ,  Prashanth Hande ,  Arnab Das ,  Junyi Li

Inventor： Xinzhou Wu ,  Sundeep Rangan ,  Prashanth Hande ,  Arnab Das ,  Junyi Li

IPC: H04W88/02

CPC classification number: H04W72/1231 ,  H04W72/1268

Abstract: Systems and methodologies are described that facilitate scheduling uplink transmissions. For instance, a time sharing scheme can be utilized such that differing mobile devices can be scheduled to transmit during differing time slots; however, it is also contemplated that a static scheme can be employed. Pursuant to an illustration, an interference budget can be combined with a time varying weighting factor associated with a base station; the weighting factor can be predefined and/or adaptively adjusted (e.g., based upon a load balancing mechanism). Moreover, the weighted interference budget can be leveraged for selecting mobile devices for uplink transmission (e.g., based at least in part upon path loss ratios of the mobile devices). Further, disparate interference budgets can be utilized by differing channels of a sector at a particular time. Also, for example, a base station can assign a loading factor to be utilized by wireless terminal(s) for generating channel quality report(s).

公开(公告)号：US20110142150A1

公开(公告)日：2011-06-16

申请号：US13034940

申请日：2011-02-25

Applicant: Pablo Anigstein ,  Prashanth Hande ,  Junyi Li

Inventor： Pablo Anigstein ,  Prashanth Hande ,  Junyi Li

IPC: H04W52/04 ,  H04L27/28

CPC classification number: H04W52/281 ,  H04L27/2601 ,  H04W52/16 ,  H04W52/42 ,  H04W52/46

Abstract: Systems and methodologies are described that facilitate controlling transmission power of a wireless terminal. A downlink power control channel segment may include an Orthogonal Frequency Division Multiplexing (OFDM) tone-symbol that may comprise a first component and a second component. The first component may be an in-phase (I) component and the second component may be a quadrature (Q) component, for example. A power command may be transmitted in the first component. Further, information associated with a wireless terminal may be transmitted in the second component. The information associated with the wireless terminal may be, for instance, a portion of a scrambling mask associated with the wireless terminal.

Abstract translation: 描述了便于控制无线终端的传输功率的系统和方法。 下行链路功率控制信道段可以包括可以包括第一分量和第二分量的正交频分复用（OFDM）音调符号。 第一分量可以是同相（I）分量，并且第二分量可以是例如正交（Q）分量。 可以在第一组件中发送功率命令。 此外，可以在第二组件中发送与无线终端相关联的信息。 与无线终端相关联的信息可以是例如与无线终端相关联的加扰掩码的一部分。

公开(公告)号：US07925291B2

公开(公告)日：2011-04-12

申请号：US11487225

申请日：2006-07-14

Applicant: Pablo Anigstein ,  Prashanth Hande ,  Junyi Li

Inventor： Pablo Anigstein ,  Prashanth Hande ,  Junyi Li

IPC: H04B7/00

CPC classification number: H04W52/281 ,  H04L27/2601 ,  H04W52/16 ,  H04W52/42 ,  H04W52/46

Abstract: Systems and methodologies are described that facilitate controlling transmission power of a wireless terminal. A downlink power control channel segment may include an Orthogonal Frequency Division Multiplexing (OFDM) tone-symbol that may comprise a first component and a second component. The first component may be an in-phase (I) component and the second component may be a quadrature (Q) component, for example. A power command may be transmitted in the first component. Further, information associated with a wireless terminal may be transmitted in the second component. The information associated with the wireless terminal may be, for instance, a portion of a scrambling mask associated with the wireless terminal.

Abstract translation: 描述了便于控制无线终端的传输功率的系统和方法。 下行链路功率控制信道段可以包括可以包括第一分量和第二分量的正交频分复用（OFDM）音调符号。 第一分量可以是同相（I）分量，并且第二分量可以是例如正交（Q）分量。 可以在第一组件中发送功率命令。 此外，可以在第二组件中发送与无线终端相关联的信息。 与无线终端相关联的信息可以是例如与无线终端相关联的加扰掩码的一部分。

公开(公告)号：US20100118747A9

公开(公告)日：2010-05-13

申请号：US11487225

申请日：2006-07-14

Applicant: Pablo Anigstein ,  Prashanth Hande ,  Junyi Li

Inventor： Pablo Anigstein ,  Prashanth Hande ,  Junyi Li

IPC: H04J11/00

CPC classification number: H04W52/281 ,  H04L27/2601 ,  H04W52/16 ,  H04W52/42 ,  H04W52/46

Abstract: Systems and methodologies are described that facilitate controlling transmission power of a wireless terminal. A downlink power control channel segment may include an Orthogonal Frequency Division Multiplexing (OFDM) tone-symbol that may comprise a first component and a second component. The first component may be an in-phase (I) component and the second component may be a quadrature (Q) component, for example. A power command may be transmitted in the first component. Further, information associated with a wireless terminal may be transmitted in the second component. The information associated with the wireless terminal may be, for instance, a portion of a scrambling mask associated with the wireless terminal.

Abstract translation: 描述了便于控制无线终端的传输功率的系统和方法。 下行链路功率控制信道段可以包括可以包括第一分量和第二分量的正交频分复用（OFDM）音调符号。 第一分量可以是同相（I）分量，并且第二分量可以是例如正交（Q）分量。 可以在第一组件中发送功率命令。 此外，可以在第二组件中发送与无线终端相关联的信息。 与无线终端相关联的信息可以是例如与无线终端相关联的加扰掩码的一部分。

公开(公告)号：US07711377B2

公开(公告)日：2010-05-04

申请号：US10865616

申请日：2004-06-10

Applicant: Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Prashanth Hande

Inventor： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Prashanth Hande

IPC: H04Q7/20

CPC classification number: H04W68/025 ,  Y02D70/00

Abstract: Methods and apparatus for efficient two-stage paging wireless communications systems are described. Wireless terminals are assigned to paging groups. A few first paging message information bits are modulated (using non-coherent modulation) into a first paging signal and communicated from a base station to wireless terminals. WTs wake-up, receive the first paging signal and quickly ascertain whether its paging group should expect a second paging signal, if so, the WT is operated to receive the second paging signal; otherwise, the WT goes back to sleep conserving power. The base station modulates (using coherent modulation) a number of second message information bits into a second paging signal and transmits the signal to WTs. From the information in first and second paging signals, a WT can determine that it is the paged WT and process the paging instructions. The intended paged WT can transmit an acknowledgement signal on a dedicated uplink resource.

Abstract translation: 描述了用于有效的两阶段寻呼无线通信系统的方法和装置。 无线终端被分配给寻呼组。 几个第一寻呼消息信息比特被调制（使用非相干调制）到第一寻呼信号中并从基站传送到无线终端。 WT唤醒，接收第一个寻呼信号，并快速确定其寻呼组是否应该预期第二个寻呼信号，如果是，则操作WT接收第二寻呼信号; 否则，WT回去睡眠节省电力。 基站将多个第二消息信息比特（使用相干调制）调制成第二寻呼信号，并将该信号发送给WT。 根据第一和第二寻呼信号中的信息，WT可以确定它是寻呼WT并处理寻呼指令。 预期的寻呼WT可以在专用上行链路资源上发送确认信号。

公开(公告)号：US20090154425A1

公开(公告)日：2009-06-18

申请号：US12049088

申请日：2008-03-14

Applicant: Shailesh Patil ,  Prashanth Hande ,  Hyung Myung

Inventor： Shailesh Patil ,  Prashanth Hande ,  Hyung Myung

IPC: H04Q7/38

CPC classification number: H04W36/165 ,  H04W36/26 ,  H04W36/36

Abstract: Methods and apparatus for making handoff decisions in an access terminal which can support both best effort and QoS traffic, e.g., when operating in a best effort and QoS mode of operation, respectively, are described. The access terminal receives an indicator indicating the fraction of communications resources not utilized for QoS service and information indicating a number of best effort users being supported by the attachment point. During QoS mode operation, connections to attachment points which can support the access terminal's minimal QoS requirements are identified and then from among the identified set, the attachment point which can provide a connect supporting the most best effort traffic from the access terminal is selected. In best effort mode operation the access terminal selects the attachment point connection which will provide the greatest amount of throughput to the access terminal for best effort traffic.

Abstract translation: 描述了在能够支持最佳努力和QoS业务的接入终端中进行切换决策的方法和装置，例如分别以尽力而为和操作模式操作时。 接入终端接收指示未被用于QoS服务的通信资源的分数的指标，以及指示由附接点支持的尽力而为用户数的信息。 在QoS模式操作期间，识别可以支持接入终端的最小QoS​​要求的连接点的连接，然后从所识别的集合中，选择可以提供支持来自接入终端的最尽力流量的连接的连接点。 在尽力而为模式操作中，接入终端选择将为接入终端提供最大吞吐量的连接点连接以实现尽力而为业务。

公开(公告)号：US07420939B2

公开(公告)日：2008-09-02

申请号：US10641308

申请日：2003-08-13

Applicant: Rajiv Laroia ,  Junyi Li ,  John L. Fan ,  Sundeep Rangan ,  Prashanth Hande

Inventor： Rajiv Laroia ,  Junyi Li ,  John L. Fan ,  Sundeep Rangan ,  Prashanth Hande

IPC: H04B7/185

CPC classification number: H04W52/08 ,  H04L27/2608 ,  H04L27/362 ,  H04W52/56 ,  H04W52/60

Abstract: The present invention involves apparatus and methods to perform wireless terminal transmission power control. The invention uses novel and highly efficient methods to: convey power control information, specify power control level adjustments, recognize power control information, limit interference in the power control signaling, and recognize corrupted power control signaling, thus conserving wireless terminal energy and minimizing power control signaling and associated bandwidth. Base stations send analog power control command signals, with a continuous range of control levels, to wireless terminals for transmission power adjustments. Power control signals include two components which can be used to convey information, e.g., power control commands, signal quality, device identity information. For zero power adjustment, the control component signal is not transmitted. For a non-zero adjustment, power control signals are sent using control ranges and limits, known to the base station and wireless terminal, with the scaling adjusted or synchronized based upon feedback information.

Abstract translation: 本发明涉及执行无线终端传输功率控制的装置和方法。 本发明使用新颖且高效的方法：传送功率控制信息，指定功率控制电平调整，识别功率控制信息，限制功率控制信令中的干扰，并识别损坏的功率控制信令，从而节省无线终端能量并最小化功率控制 信令和相关带宽。 基站向无线终端发送模拟功率控制命令信号，具有连续的控制级别，用于传输功率调整。 功率控制信号包括可用于传送信息的两个组件，例如功率控制命令，信号质量，设备身份信息。 对于零功率调整，控制分量信号不发送。 对于非零调整，功率控制信号使用基站和无线终端已知的控制范围和限制，基于反馈信息进行缩放调整或同步。

公开(公告)号：US20080146241A1

公开(公告)日：2008-06-19

申请号：US11611881

申请日：2006-12-17

Applicant: Arnab Das ,  Prashanth Hande ,  Sundeep Rangan ,  Xinzhou Wu

Inventor： Arnab Das ,  Prashanth Hande ,  Sundeep Rangan ,  Xinzhou Wu

IPC: H04Q7/20 ,  G08C15/00 ,  H04B1/00 ,  H04J4/00

CPC classification number: H04L1/0002 ,  H04L1/0017 ,  H04L5/023 ,  H04L27/2601 ,  H04W52/26 ,  H04W72/1205 ,  H04W72/1268

Abstract: Systems and methodologies are described that facilitate scheduling transmission, upon an uplink traffic channel in Orthogonal Frequency Division Multiplexing (OFDM) environments. Uplink scheduling may include user selection and rate selection. Further, user selection may be based on a token mechanism that provides control over fairness of allocation to disparate users. Moreover, rate selection may be based upon considerations of uplink interference mitigation.

Abstract translation: 描述了在正交频分复用（OFDM）环境中的上行链路业务信道上促进调度传输的系统和方法。 上行链路调度可以包括用户选择和速率选择。 此外，用户选择可以基于提供对分配给不同用户的公平性的控制的令牌机制。 此外，速率选择可以基于上行链路干扰减轻的考虑。