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：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：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。

公开(公告)号：US20110116436A1

公开(公告)日：2011-05-19

申请号：US12772714

申请日：2010-05-03

申请人： Raja Sekhar Bachu ,  Ashwin Sampath

发明人： Raja Sekhar Bachu ,  Ashwin Sampath

IPC分类号： H04W64/00 ,  H04W4/06 ,  H04W88/02

CPC分类号： H04L5/0053 ,  H04L5/0048 ,  H04L5/0051

摘要： Techniques for transmitting and receiving a reference signal in a wireless network are described. In one design, a UE may generate multiple transmissions of a reference signal at multiple frequency locations. The UE may send the transmissions of the reference signal in multiple symbol periods of at least one subframe. The UE may send at least two transmissions of the reference signal in each subframe, e.g., one transmission of the reference signal in each symbol period of a subframe. Each transmission of the reference signal may cover a portion of the bandwidth of the reference signal and may be sent on a set of contiguous subcarriers at a particular frequency location. The multiple transmissions of the reference signal may cover the entire bandwidth of the reference signal. A location estimate for the UE may be determined based on time of arrivals (TOAs) of the reference signal measured by multiple receiver stations.

摘要翻译： 描述了用于在无线网络中发送和接收参考信号的技术。 在一种设计中，UE可以在多个频率位置处生成参考信号的多个传输。 UE可以在至少一个子帧的多个符号周期中发送参考信号的传输。 UE可以在每个子帧中发送参考信号的至少两个传输，例如在子帧的每个符号周期中的参考信号的一次传输。 参考信号的每次传输可以覆盖参考信号的带宽的一部分，并且可以在特定频率位置的一组连续子载波上发送。 参考信号的多次传输可以覆盖参考信号的整个带宽。 可以基于由多个接收机站测量的参考信号的到达时间（TOAs）来确定UE的位置估计。

公开(公告)号：US20110105065A1

公开(公告)日：2011-05-05

申请号：US13004956

申请日：2011-01-12

申请人： Ashwin Sampath ,  Gavin Bernard Horn

发明人： Ashwin Sampath ,  Gavin Bernard Horn

IPC分类号： H04B1/02 ,  H04B1/04

CPC分类号： H04W74/0841 ,  H04L5/0007 ,  H04L5/003 ,  H04L5/0044 ,  H04L5/0053

摘要： A method and apparatus for dynamic interference management is disclosed. A frequency channel is partitioned into a plurality of groups. Two or more groups are assigned weights reflecting degrees of disadvantage of a node. Each group is further partitioned into a plurality of tones. A node experiencing interference determines a group, selects a tone within the group, and transmits a wireless signal using the selected tone. A receiving node receives a plurality of tones including the selected tone, identifies active tones from the received tones, and determines a response based on the weights of the active tones.

摘要翻译： 公开了一种用于动态干扰管理的方法和装置。 频道被分割成多个组。 分配两个或更多个组以反映节点的不利程度的权重。 每个组进一步分割成多个音调。 经历干扰的节点确定组，选择组内的音调，并使用所选择的音调发送无线信号。 接收节点接收包括所选择的音调的多个音调，从接收到的音调中识别活动音调，并且基于活动音调的权重来确定响应。

公开(公告)号：US20100296405A1

公开(公告)日：2010-11-25

申请号：US12774173

申请日：2010-05-05

申请人： Ritesh K. Madan ,  Ashwin Sampath ,  Saurabh R. Tavildar

发明人： Ritesh K. Madan ,  Ashwin Sampath ,  Saurabh R. Tavildar

IPC分类号： H04J3/14

CPC分类号： H04W72/082 ,  H04B17/26 ,  H04B2201/70702 ,  H04J11/0053 ,  H04J11/0059 ,  H04L1/0002 ,  H04L1/0026 ,  H04W72/0413 ,  H04W72/0426 ,  H04W72/08 ,  H04W72/1231

摘要： Systems, methods, apparatus and computer program products for facilitating interference management on an uplink in a wireless communication system are provided. In one embodiment, a method can include: determining channel gain information measured on a downlink, wherein the determining is performed by a base station; determining interference from one or more interfering user equipment based on the channel gain information for the uplink; and calculating a nominal interference based on the interference from the one or more interfering user equipment.

摘要翻译： 提供了用于促进无线通信系统中的上行链路的干扰管理的系统，方法，装置和计算机程序产品。 在一个实施例中，一种方法可以包括：确定在下行链路上测量的信道增益信息，其中确定由基站执行; 基于上行链路的信道增益信息确定来自一个或多个干扰用户设备的干扰; 以及基于来自所述一个或多个干扰用户设备的干扰来计算标称干扰。

公开(公告)号：US20100226317A1

公开(公告)日：2010-09-09

申请号：US12063657

申请日：2007-11-21

申请人： Gavin Bernard Horn ,  Ashwin Sampath

发明人： Gavin Bernard Horn ,  Ashwin Sampath

IPC分类号： H04W72/04

CPC分类号： H04W16/10 ,  H04W16/02 ,  H04W16/04 ,  H04W28/0231

摘要： All or a portion of a timeslot of a slotted communication system may be dynamically designated for transmitting or for receiving. For example, a timeslot originally designated for receiving information at a wireless node may be temporarily designated for transmitting information from the wireless node. Such a designation may be made to accommodate a temporary asymmetry in traffic flow between wireless nodes or may be made based on other criteria. In some aspects, a resource utilization messaging scheme may be employed to mitigate interference associated with the designation of timeslots for transmitting or receiving.

摘要翻译： 时隙通信系统的时隙的全部或一部分可以动态地指定用于发送或接收。 例如，可以临时指定原来指定用于在无线节点处接收信息的时隙，用于从无线节点发送信息。 可以进行这样的指定以适应无线节点之间的业务流的临时不对称，或者可以基于其他标准来进行。 在一些方面，可以采用资源利用消息收发方案来减轻与用于发送或接收的时隙的指定相关联的干扰。