公开(公告)号：US20120099449A1

公开(公告)日：2012-04-26

申请号：US13228691

申请日：2011-09-09

申请人： Ritesh K. Madan ,  Ashwin Sampath ,  Ahmed K. Sadek

发明人： Ritesh K. Madan ,  Ashwin Sampath ,  Ahmed K. Sadek

IPC分类号： H04W24/00 ,  H04W52/16

CPC分类号： H04W74/0816 ,  H04W74/085

摘要： In a first method, a first apparatus determines a channel gain to a second apparatus with which the first apparatus is communicating. The first apparatus determines interferer backoff information that ensures an interference level at the first apparatus such that a signal received from the second apparatus can be decoded reliably. The interferer backoff information is determined based on the channel gain. The first apparatus transmits information based on the interferer backoff information in a message to the second apparatus. In a second method, a first apparatus in communication with a second apparatus determines a channel gain to a third apparatus with which the first apparatus can potentially interfere. The first apparatus receives a message from the third apparatus. The message includes interferer backoff information. The first apparatus determines a power for transmitting a signal to the second apparatus based on the interferer backoff information and the channel gain.

摘要翻译： 在第一种方法中，第一装置确定与第一装置正在通信的第二装置的信道增益。 第一装置确定确保第一装置处的干扰电平的干扰源退避信息，使得可以可靠地解码从第二装置接收的信号。 基于信道增益确定干扰源补偿信息。 第一装置基于消息中的干扰源退避信息向第二装置发送信息。 在第二种方法中，与第二装置通信的第一装置确定到第一装置可能潜在地干扰的第三装置的信道增益。 第一装置从第三装置接收消息。 该消息包括干扰源补偿信息。 第一装置基于干扰源退避信息和信道增益确定用于向第二装置发送信号的功率。

公开(公告)号：US08111668B2

公开(公告)日：2012-02-07

申请号：US10366389

申请日：2003-02-14

申请人： Krishna Balachandran ,  Arnab Das ,  Farooq Ullah Khan ,  Ashwin Sampath ,  Hsuan-Jung Su

发明人： Krishna Balachandran ,  Arnab Das ,  Farooq Ullah Khan ,  Ashwin Sampath ,  Hsuan-Jung Su

IPC分类号： H04B7/216

CPC分类号： H04W72/1268 ,  H04L1/0003 ,  H04L1/0028 ,  H04L1/1671 ,  H04L1/1812 ,  H04W28/065 ,  H04W72/1284

摘要： In a wireless communication system, there is a method of generating and transmitting signaling information from a user, where user control information may be appended as a header to a data block, and the data block and header may be encoded and transmitted as a signaling message from the user. In a method of scheduling a user for transmitting information, a signaling message, which may include user control information, is received from a user. A scheduling grant message that may include an allocated data rate may be transmitted in response to the received signaling message. The user control information may include one or more of buffer status information of the user, reverse pilot channel transmit power information and data related to a soft handoff (SHO) status of the user.

摘要翻译： 在无线通信系统中，存在一种从用户生成和发送信令信息的方法，其中可以将用户控制信息作为报头附加到数据块，并且可以将数据块和报头作为信令消息进行编码和发送 来自用户 在调度用户发送信息的方法中，从用户接收到包括用户控制信息的信令消息。 可以响应于接收到的信令消息来发送可以包括分配的数据速率的调度授权消息。 用户控制信息可以包括用户的缓冲器状态信息，反向导频信道发送功率信息和与用户的软切换（SHO）状态相关的数据中的一个或多个。

公开(公告)号：US20120014269A1

公开(公告)日：2012-01-19

申请号：US12987946

申请日：2011-01-10

申请人： Siddharth Ray ,  Ashwin Sampath ,  Ritesh Kumar Madan

发明人： Siddharth Ray ,  Ashwin Sampath ,  Ritesh Kumar Madan

IPC分类号： H04W72/04 ,  H04W24/00

CPC分类号： H04W74/006 ,  H04W74/008

摘要： Methods and apparatus for contention-based access in a wireless communication system are disclosed. A base station may determine a contention-based resource allocation comprising a subset of available system resources. Information related to the contention-based resources may be sent to a user device. In addition, state information may be provided to the UE. The UE may generate and send a contention-based uplink transmission consistent with the allocated resources and state information.

摘要翻译： 公开了一种在无线通信系统中基于竞争的接入的方法和装置。 基站可以确定包括可用系统资源的子集的基于竞争的资源分配。 与基于竞争的资源相关的信息可以被发送到用户设备。 此外，可以向UE提供状态信息。 UE可以生成并发送与分配的资源和状态信息一致的基于争用的上行链路传输。

公开(公告)号：US08081592B2

公开(公告)日：2011-12-20

申请号：US11553417

申请日：2006-10-26

申请人： Ashwin Sampath ,  Rajarshi Gupta ,  David Jonathan Julian ,  Gavin Horn ,  Anastasios Stamoulis ,  Nikhil Jain ,  Husheng Li ,  Rajat Prakash

发明人： Ashwin Sampath ,  Rajarshi Gupta ,  David Jonathan Julian ,  Gavin Horn ,  Anastasios Stamoulis ,  Nikhil Jain ,  Husheng Li ,  Rajat Prakash

IPC分类号： H04H20/71

CPC分类号： H04W52/243 ,  H04W52/34 ,  H04W72/04 ,  H04W72/0406 ,  H04W72/082

摘要： Systems and methods are disclosed that facilitate wireless communication using resource utilization messages (RUMs), in accordance with various aspects. A RUM may be generated for a first node, such as an access point or an access terminal, to indicate that a first predetermined threshold has been met or exceeded. The RUM may be weighted to indicate a degree to which a second predetermined threshold has been exceeded. The first and/or second predetermined thresholds may be associated with various parameters associated with the node, such as latency, throughput, data rate, spectral efficiency, carrier-to-interference ratio, interference-over-thermal level, etc. The RUM may then be transmitted to one or more other nodes to indicate a level of disadvantage experienced by the first node.

摘要翻译： 公开了根据各个方面促进使用资源利用消息（RUM）的无线通信的系统和方法。 可以为诸如接入点或接入终端的第一节点生成RUM以指示已经满足或超过第一预定阈值。 可以对RUM进行加权以指示超过第二预定阈值的程度。 第一和/或第二预定阈值可以与与节点相关联的各种参数相关联，诸如等待时间，吞吐量，数据速率，频谱效率，载波干扰比，干扰过热水平等。RUM可以 然后被发送到一个或多个其他节点以指示由第一节点经历的不利程度。

公开(公告)号：US20110249600A1

公开(公告)日：2011-10-13

申请号：US12756101

申请日：2010-04-07

申请人： Raja Sekhar Bachu ,  Ashwin Sampath

发明人： Raja Sekhar Bachu ,  Ashwin Sampath

IPC分类号： H04L5/14

CPC分类号： H04L1/0045 ,  H03M13/3769 ,  H04L1/0072

摘要： Chase combining gains for receiving a scrambled broadcast channel can be achieved even when a portion of each received channel coded transmission contains a portion that varies. A set of possible difference values for this varying portion, such as for a system frame number, provides hypotheses, each having a corresponding probability. One or more of the hypotheses are selected by rank order for adjusting a corresponding received coded transmission so that two or more channel coded transmissions can be combined and blind decoded until one of the hypotheses are confirmed.

摘要翻译： 即使当每个接收的信道编码传输的一部分包含变化的部分时，也可以实现用于接收扰频广播信道的追加组合增益。 对于该变化部分（例如系统帧号）的一组可能的差值提供假设，每个具有相应的概率。 通过等级顺序选择一个或多个假设，以调整相应的接收的编码的传输，使得可以组合两个或更多个信道编码的传输并盲解码，直到确定了其中一个假设。

公开(公告)号：US08004992B2

公开(公告)日：2011-08-23

申请号：US12041525

申请日：2008-03-03

申请人： Santosh Abraham ,  Saishankar Nandagopalan ,  Sanjiv Nanda ,  Ashwin Sampath

发明人： Santosh Abraham ,  Saishankar Nandagopalan ,  Sanjiv Nanda ,  Ashwin Sampath

IPC分类号： H04L1/00 ,  H04L12/26 ,  H04W4/00 ,  H04L12/28 ,  H04L12/56

CPC分类号： H04L1/1812

摘要： A wireless node having a MAC layer configured to coordinate access to a shared wireless medium using a MAC protocol, a PHY layer configured to provide an interface to the shared wireless medium, and a HARQ layer between the MAC and PHY layers, the HARQ layer being configured to support HARQ using the MAC protocol.

摘要翻译： 具有MAC层的无线节点被配置为使用MAC协议来协调对共享无线介质的访问，被配置为向所述共享无线介质提供接口的PHY层以及所述MAC层与所述PHY层之间的HARQ层，所述HARQ层为 配置为使用MAC协议来支持HARQ。

公开(公告)号：US20110182251A1

公开(公告)日：2011-07-28

申请号：US12844636

申请日：2010-07-27

申请人： Ritesh Kumar Madan ,  Ashwin Sampath

发明人： Ritesh Kumar Madan ,  Ashwin Sampath

IPC分类号： H04W72/04

CPC分类号： H04W72/1226 ,  H04W28/22

摘要： Systems and methodologies are described that facilitate adapting wireless device scheduling parameters at least in part by adjusting prioritized bit rates (PBR) of one or more logical channels. The PBRs can be adjusted according to feedback from a media access control layer scheduler or a radio link control layer regarding resource allocations to one or more wireless device, served rate for one or more wireless device, and/or the like. Adjusting the PBRs based on the feedback can increase likelihood that data can be transmitted over substantially all or a specified set of logical channels. Moreover, PBRs can be modified for specific wireless devices based further on resource allocations thereto. Furthermore, PBRs can be modified based at least in part on radio conditions of neighboring access points.

摘要翻译： 描述了有助于至少部分地通过调整一个或多个逻辑信道的优先化比特率（PBR）来适配无线设备调度参数的系统和方法。 PBR可以根据来自媒体访问控制层调度器或无线电链路控制层的反馈来调整，所述无线电链路控制层关于一个或多个无线设备的资源分配，一个或多个无线设备的服务速率等。 基于反馈调整PBR可以增加数据可以在基本上全部或指定的一组逻辑信道上传输的可能性。 此外，基于对其的资源分配，PBR可以针对特定无线设备进行修改。 此外，PBR可以至少部分地基于相邻接入点的无线电条件进行修改。

公开(公告)号：US20110170465A1

公开(公告)日：2011-07-14

申请号：US12686062

申请日：2010-01-12

申请人： Saurabh Tavildar ,  Ashwin Sampath ,  Junyi Li

发明人： Saurabh Tavildar ,  Ashwin Sampath ,  Junyi Li

IPC分类号： G08C17/02 ,  H04J3/06

CPC分类号： H04W56/0015 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/164 ,  Y02D70/22

摘要： Various methods and apparatus are directed to achieving timing synchronization and propagating timing information pertaining to an external, e.g., non Wi-Fi, timing signal source. In some embodiments, a mobile communications device receives and processes a timing signal, e.g., a first Wi-Fi beacon, which is propagating timing information about an external timing signal from a device which directly received the external timing signal. Thus, a mobile wireless communications device achieves timing synchronization with respect to an external timing signal which it is unable to receive directly. In various embodiments, the mobile communications device may, and sometimes does, further propagate the timing information about the external timing signal, e.g., via a second Wi-Fi beacon signal which it generates and transmits. Synchronization with respect to an external signal source facilitates longer sleep states and decreased power consumption.

摘要翻译： 各种方法和装置旨在实现与外部例如非Wi-Fi定时信号源有关的定时同步和传播定时信息。 在一些实施例中，移动通信设备接收并处理定时信号，例如第一Wi-Fi信标，其正在从直接接收到外部定时信号的设备传播关于外部定时信号的定时信息。 因此，移动无线通信设备相对于不能直接接收的外部定时信号实现定时同步。 在各种实施例中，移动通信设备可以并且有时也可以例如经由其产生和发送的第二Wi-Fi信标信号进一步传播关于外部定时信号的定时信息。 相对于外部信号源的同步有助于延长睡眠状态和降低功耗。

公开(公告)号：US20110130099A1

公开(公告)日：2011-06-02

申请号：US12784398

申请日：2010-05-20

申请人： Ritesh K. Madan ,  Ashwin Sampath ,  Aamod Dinkar Khandekar ,  Jaber M. Borran

发明人： Ritesh K. Madan ,  Ashwin Sampath ,  Aamod Dinkar Khandekar ,  Jaber M. Borran

IPC分类号： H04W24/02 ,  H04W72/04

CPC分类号： H04W72/1226 ,  H04W72/1278

摘要： Systems, methods, apparatus and computer program products for scheduling in a wireless communication system are provided. In some embodiments, the method can include: receiving a buffer status report from user equipment having one or more logical channel groups; configuring a first priority metric and a first prioritized bit rate for at least one of the one or more logical channel groups, wherein the configuring a first priority metric and a first prioritized bit rate for at least one of the one or more logical channel groups is in response to information included in the buffer status report; determining interference at the user equipment; and re-configuring, by the serving base station, the first priority metric and the first prioritized bit rate for the at least one of the one or more logical channel groups in response to determining interference at the user equipment.

摘要翻译： 提供了一种用于在无线通信系统中进行调度的系统，方法，装置和计算机程序产品。 在一些实施例中，该方法可以包括：从具有一个或多个逻辑信道组的用户设备接收缓冲器状态报告; 为所述一个或多个逻辑信道组中的至少一个配置第一优先级度量和第一优先级比特率，其中为所述一个或多个逻辑信道组中的至少一个配置第一优先权度量和第一优先级比特率， 响应缓冲状态报告中包含的信息; 确定用户设备的干扰; 以及响应于确定所述用户设备处的干扰，由所述服务基站重新配置所述一个或多个逻辑信道组中的所述至少一个的所述第一优先级度量和所述第一优先级比特率。

公开(公告)号：US20110130098A1

公开(公告)日：2011-06-02

申请号：US12784342

申请日：2010-05-20

申请人： Ritesh K. Madan ,  Ashwin Sampath ,  Aamod Dinkar Khandekar ,  Jaber M. Borran

发明人： Ritesh K. Madan ,  Ashwin Sampath ,  Aamod Dinkar Khandekar ,  Jaber M. Borran

IPC分类号： H04B15/00

CPC分类号： H04W24/02 ,  H04W84/045

摘要： Systems, methods, apparatus and computer program products for facilitating interference management on a downlink of a wireless communication system are provided. In some embodiments, the method can include determining, by a base station within a cell, a benefit to out-of-cell user equipment when a base station transmits with certain transmission attributes, wherein the transmission attributes are at least one of a transmit power, beamforming vector or multiple input multiple output transmission; determining, by the base station, a benefit to a user equipment within the cell when the base station transmits with certain transmission attributes; and determining, by the base station, the total benefit to the out-of-cell user equipment and to the user equipment within the cell.

摘要翻译： 提供了用于促进无线通信系统的下行链路上的干扰管理的系统，方法，装置和计算机程序产品。 在一些实施例中，所述方法可以包括：当基站以特定传输属性发送时，由小区内的基站确定对小区外用户设备的益处，其中传输属性是以下中的至少一个：发射功率 ，波束成形向量或多输入多输出传输; 当所述基站以某些传输属性发送时，由所述基站确定所述小区内的用户设备的益处; 以及由所述基站确定所述小区外用户设备和所述小区内的所述用户设备的总体利益。