公开(公告)号：US09844073B2

公开(公告)日：2017-12-12

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： H04W74/00

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.

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：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：US08712462B2

公开(公告)日：2014-04-29

申请号：US12819191

申请日：2010-06-19

申请人： Ritesh Kumar Madan ,  Siddharth Ray ,  Niranjan N. Ratnakar ,  Arnab Das

发明人： Ritesh Kumar Madan ,  Siddharth Ray ,  Niranjan N. Ratnakar ,  Arnab Das

IPC分类号： H04W52/34 ,  H04W72/12

CPC分类号： H04L5/02 ,  H04L5/0058 ,  H04L5/0078

摘要： An apparatus and method are disclosed for determining the optimal bandwidth fractions for all the users in each frequency band in a wireless communication system to maximize the net sum of user utilities. User utilities are functions of average rates of users, where different averaging rules can be used for different users. The standard approach of computing an optimal scheduler strategy involves the solution of a convex optimization problem that has a complexity on the order of O(N3) for N flows. This approach is not feasible for online implementation having a large number of flows. The method of the present work employs an efficient computational algorithm that obtains the optimal bandwidth fractions in O(N) time. This feature makes the method suitable for implementation in wideband cellular systems like LTE (Long Term Evolution) and UMB (Ultra Mobile Broadband).

摘要翻译： 公开了一种用于确定无线通信系统中每个频带中所有用户的最佳带宽分数的装置和方法，以最大化用户实用程序的净和。 用户实用程序是用户的平均速率的函数，其中不同的平均规则可以用于不同的用户。 计算最优调度器策略的标准方法涉及对于N个流具有O（N3）级的复杂度的凸优化问题的解。 这种方法对于具有大量流量的在线实现是不可行的。 本工作的方法采用了一种在O（N）时间内获得最佳带宽分数的有效计算算法。 该特征使得该方法适用于诸如LTE（长期演进）和UMB（超移动宽带）的宽带蜂窝系统中的实现。

公开(公告)号：US20110312360A1

公开(公告)日：2011-12-22

申请号：US12819191

申请日：2010-06-19

申请人： Ritesh Kumar Madan ,  Siddharth Ray ,  Niranjan N. Ratnakar ,  Arnab Das

发明人： Ritesh Kumar Madan ,  Siddharth Ray ,  Niranjan N. Ratnakar ,  Arnab Das

IPC分类号： H04B7/00

CPC分类号： H04L5/02 ,  H04L5/0058 ,  H04L5/0078

摘要： An apparatus and method are disclosed for determining the optimal bandwidth fractions for all the users in each frequency band in a wireless communication system to maximize the net sum of user utilities. User utilities are functions of average rates of users, where different averaging rules can be used for different users. The standard approach of computing an optimal scheduler strategy involves the solution of a convex optimization problem that has a complexity on the order of O(N3) for N flows. This approach is not feasible for online implementation having a large number of flows. The method of the present work employs an efficient computational algorithm that obtains the optimal bandwidth fractions in O(N) time. This feature makes the method suitable for implementation in wideband cellular systems like LTE (Long Term Evolution) and UMB (Ultra Mobile Broadband).

摘要翻译： 公开了一种用于确定无线通信系统中每个频带中所有用户的最佳带宽分数的装置和方法，以最大化用户实用程序的净和。 用户实用程序是用户的平均速率的函数，其中不同的平均规则可以用于不同的用户。 计算最优调度器策略的标准方法涉及对于N个流具有O（N3）级的复杂度的凸优化问题的解。 这种方法对于具有大量流量的在线实现是不可行的。 本工作的方法采用了一种在O（N）时间内获得最佳带宽分数的有效计算算法。 该特征使得该方法适用于诸如LTE（长期演进）和UMB（超移动宽带）的宽带蜂窝系统中的实现。