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    COMMUNICATING VIA A FEMTO ACCESS POINT WITHIN A WIRELESS COMMUNICATIONS SYSTEM
    11.
    发明申请
    COMMUNICATING VIA A FEMTO ACCESS POINT WITHIN A WIRELESS COMMUNICATIONS SYSTEM 有权
    在无线通信系统中通过有限接入点进行通信

    公开(公告)号：US20120113862A1

    公开(公告)日：2012-05-10

    申请号：US12939753

    申请日：2010-11-04

    Applicant: Arvind V. Santhanam ,  Karthika Paladugu ,  Prashanth Hande

    Inventor： Arvind V. Santhanam ,  Karthika Paladugu ,  Prashanth Hande

    IPC: H04W88/08 ,  H04W74/08 ,  H04W88/02 ,  H04W64/00 ,  H04W36/30 ,  H04W36/36 ,  H04W76/02

    CPC classification number: H04W84/045 ,  H04W36/14

    Abstract: In an embodiment, a user of a wireless communications device (WCD) is notified when operating in a serving area of a FEMTO access point (AP). In another embodiment, the WCD can notify an application server (AS) that the WCD is served by the FEMTO AP. In another embodiment, the AS can set a service level for a server-arbitrated communication session (CS) based on the FEMTO AP serving status of participating WCDs. In another embodiment, the FEMTO AP can determine to use a downlink control or signaling channel to transmit data to the WCD. In another embodiment, based on its serving FEMTO AP status, the WCD can (i) modify its participation level in the CS and/or (ii) selectively track usage. In another embodiment, the WCD or FEMTO AP can measure performance parameters of the CS to determine whether to trigger a handoff of the WCD to a different AP.

    Abstract translation: 在一个实施例中，当在FEMTO接入点（AP）的服务区域中操作时，通知无线通信设备（WCD）的用户。 在另一实施例中，WCD可以通知应用服务器（AS）由FEMTO AP服务WCD。 在另一个实施例中，AS可以基于参与WCD的FEMTO AP服务状态为服务器仲裁的通信会话（CS）设置服务水平。 在另一个实施例中，FEMTO AP可以确定使用下行链路控制或信令信道来向WCD发送数据。 在另一个实施例中，基于其服务的FEMTO AP状态，WCD可以（i）修改其在CS中的参与级别和/或（ii）选择性地跟踪使用。 在另一个实施例中，WCD或FEMTO AP可以测量CS的性能参数以确定是否触发WCD到不同AP的切换。

    Opportunistic uplink scheduling
    12.
    发明授权
    Opportunistic uplink scheduling 失效

    公开(公告)号：US08160602B2

    公开(公告)日：2012-04-17

    申请号：US11943504

    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: 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).

    EFFICIENT PAGING IN A WIRELESS COMMUNICATION SYSTEM
    14.
    发明申请
    EFFICIENT PAGING IN A WIRELESS COMMUNICATION SYSTEM 有权

    公开(公告)号：US20100178942A1

    公开(公告)日：2010-07-15

    申请号：US12730154

    申请日：2010-03-23

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

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

    IPC: H04W68/02

    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.

    Methods and apparatus of providing transmit and/or receive diversity with multiple antennas in wireless communication systems
    15.
    发明授权
    Methods and apparatus of providing transmit and/or receive diversity with multiple antennas in wireless communication systems 有权
    在无线通信系统中提供与多个天线的发射和/或接收分集的方法和装置

    公开(公告)号：US07610024B2

    公开(公告)日：2009-10-27

    申请号：US11284285

    申请日：2005-11-21

    Applicant: Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan ,  Frank A. Lane ,  Prashanth Hande

    Inventor： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan ,  Frank A. Lane ,  Prashanth Hande

    IPC: H04B7/06

    CPC classification number: H04B7/0604 ,  H01Q3/24 ,  H01Q3/2605 ,  H04B7/061 ,  H04B7/0691 ,  H04B7/0805 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/006 ,  H04W52/42

    Abstract: Transmit and/or receive diversity is achieved using multiple antennas. In some embodiments, a single transmitter chain within a wireless terminal is coupled over time to a plurality of transmit antennas. At any given time, a controllable switching module couples the single transmitter chain to one the plurality of transmit antennas. Over time, the switching module couples the output signals from the single transmitter chain to different transmit antennas. Switching decisions are based upon predetermined information, dwell information, and/or channel condition feedback information. Switching is performed on some dwell and/or channel estimation boundaries. In some OFDM embodiments, each of multiple transmitter chains is coupled respectively to a different transmit antenna. Information to be transmitted is mapped to a plurality of tones. Different subsets of tones are formed for and transmitted through different transmit chain/antenna sets simultaneously. The balance of tones allocated to the subsets for each antenna are changed as a function of predetermined information, dwell information, and/or channel condition feedback information.

    Abstract translation: 使用多个天线实现发射和/或接收分集。 在一些实施例中，无线终端内的单个发射机链随时间耦合到多个发射天线。 在任何给定时间，可控开关模块将单个发射机链耦合到多个发射天线中的一个。 随着时间的推移，开关模块将来自单个发射机链的输出信号耦合到不同的发射天线。 切换决定基于预定信息，停留信息和/或信道条件反馈信息。 在一些驻留和/或信道估计边界上执行切换。 在一些OFDM实施例中，多个发射机链中的每一个分别耦合到不同的发射天线。 要发送的信息被映射到多个音调。 为不同的发射链/天线组同时形成和发送不同的音调子集。 分配给每个天线的子集的音调的平衡作为预定信息，停留信息和/或信道条件反馈信息的函数而改变。

    Methods and Apparatus for Making a Handoff Determination as a Function of Service Level Indicating Metrics
    16.
    发明申请
    Methods and Apparatus for Making a Handoff Determination as a Function of Service Level Indicating Metrics 有权
    将切换确定为服务水平指示度量的函数的方法和装置

    公开(公告)号：US20090156211A1

    公开(公告)日：2009-06-18

    申请号：US12049150

    申请日：2008-03-14

    Applicant: Prashanth Hande ,  Pablo Alejandro Anigstein ,  Shailesh Patil ,  Yunus Hussain

    Inventor： Prashanth Hande ,  Pablo Alejandro Anigstein ,  Shailesh Patil ,  Yunus Hussain

    IPC: H04Q7/20

    CPC classification number: H04W36/22 ,  H04W36/30 ,  H04W36/36

    Abstract: Method and apparatus for an access terminal which makes handoff decisions between a number of potential alternative attachment points based on service level indicating metrics are described. The access terminal computes a service level indicating metric differently for a current connection than for a potential alternative connection. A service level indicating metric is a function of loading information and received signal strength. A selection may be made by selecting between attachment points by selecting the attachment point having the highest service level indicating metric from among a plurality of attachment points, one per possible carrier where the attachment point which is considered for a given carrier is the one having the best connection for the given carrier. The access terminal handoff decision approach provides handoff decisions which are nearly as optimal as those which can be achieved using a centralized control node but without the requirement for centralized handoff decisions.

    Abstract translation: 描述了一种接入终端的方法和装置，其基于服务水平指示量度在多个潜在替代附接点之间进行切换决策。 访问终端针对当前连接计算指示度量的服务级别，而不是潜在的备选连接。 服务级别指示度量是加载信息和接收信号强度的函数。 可以通过从多个附接点中选择具有最高服务级别指示度量的附接点来选择附件点，每个可能的载体一个，对于给定载体考虑的附着点是具有 给定运营商的最佳连接。 接入终端越区切换决策方法提供了切换决策，这些决定几乎与使用集中式控制节点可以实现但不需要集中切换决策一样优先。

    POWER-BASED RATE SIGNALING FOR CELLULAR UPLINK
    17.
    发明申请
    POWER-BASED RATE SIGNALING FOR CELLULAR UPLINK 有权
    基于功率的信号上行信道

    公开(公告)号：US20080144582A1

    公开(公告)日：2008-06-19

    申请号：US11611882

    申请日：2006-12-17

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

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

    IPC: H04B7/216

    CPC classification number: H04L1/0015 ,  H04L1/0002 ,  H04L1/0033 ,  H04W52/146 ,  H04W52/242 ,  H04W52/243 ,  H04W52/367

    Abstract: Systems and methodologies are described that facilitate utilizing power-based rate signaling for uplink scheduling in a wireless communications system. A maximum nominal power (e.g., relative maximum transmit power that may be employed on an uplink) may be known to both a base station and a mobile device. For example, the base station and the mobile device may agree upon a maximum nominal power. According to another example, signaling related to a maximum nominal power for utilization on the uplink may be provided over a downlink. Further, selection of a code rate, modulation scheme, and the like for the uplink may be effectuated by a mobile device as a function of the maximum nominal power. Moreover, such selection may be based at least in part upon an interference cost, which may be evaluated by the mobile device.

    Abstract translation: 描述了有助于在无线通信系统中利用基于功率的速率信令用于上行链路调度的系统和方法。 基站和移动设备可以知道最大额定功率（例如，可以在上行链路上采用的相对最大发射功率）。 例如，基站和移动设备可以达成最大额定功率。 根据另一示例，可以在下行链路上提供与在上行链路上的最大标称功率有关的信令。 此外，用于上行链路的码率，调制方案等的选择可以由移动设备作为最大额定功率的函数来实现。 此外，这样的选择可以至少部分地基于可由移动设备评估的干扰成本。

    Efficient paging in a wireless communication system
    19.
    发明申请
    Efficient paging in a wireless communication system 有权
    无线通信系统中的高效寻呼

    公开(公告)号：US20050277429A1

    公开(公告)日：2005-12-15

    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: H04W68/00 ,  H04W68/02 ,  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。

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