公开(公告)号：US08335202B2

公开(公告)日：2012-12-18

申请号：US11941907

申请日：2007-11-16

申请人： Rajat Prakash ,  Fatih Ulupinar

发明人： Rajat Prakash ,  Fatih Ulupinar

IPC分类号： H04J1/00

CPC分类号： H04W48/12 ,  H04W36/00 ,  H04W48/08 ,  H04W74/00

摘要： Systems and methodologies are described that facilitate enhancing acquisition and handoff in a wireless network deployment by leveraging primary pilots and secondary pilots. The deployment can support more than one frequency band for operation, yet a mobile device can receive signals on one frequency band at a given time. Thus, a base station can transmit primary pilot(s) over frequency band(s) associated with operating data channel(s) as well as secondary pilot(s) over frequency band(s) that lack data channel(s) for the base station. Moreover, the base station can convey information that indicates to a mobile device whether each pilot is primary or secondary. Further, the mobile device can employ knowledge of pilot type (e.g., primary or secondary) as well as signal strength to effectuate handoff decisions; thus, disruptions in communication can be mitigated.

摘要翻译： 描述了通过利用主要飞行员和辅助飞行员来促进无线网络部署中的采集和切换的系统和方法。 该部署可以支持多个频带进行操作，但移动设备可以在给定时间在一个频带上接收信号。 因此，基站可以在与操作数据信道相关联的频带上发送主导频，以及在缺少用于基站的数据信道的频带上的辅助导频 站。 此外，基站可以向移动设备传送指示每个飞行员是主要还是次要的信息。 此外，移动设备可以使用导频类型（例如，初级或次级）的知识以及信号强度来实现切换决定; 从而可以缓解通信中断。

公开(公告)号：US20120188907A1

公开(公告)日：2012-07-26

申请号：US13351739

申请日：2012-01-17

申请人： Pranav Dayal ,  Tamer Adel Kadous ,  Rajat Prakash ,  Ashok Mantravadi ,  Ahmed K. Sadek

发明人： Pranav Dayal ,  Tamer Adel Kadous ,  Rajat Prakash ,  Ashok Mantravadi ,  Ahmed K. Sadek

IPC分类号： H04W16/00 ,  H04W52/02

CPC分类号： H04W72/1215 ,  H04W88/06

摘要： To improve performance in devices capable of communication using multiple radio access technologies (RATs), a gap pattern may be constructed in which a first RAT is quieted during certain times to allow for a second RAT to operate without interference. Gap patterns may be constructed based on timeline constraints, such as grant scheduling and HARQ performance, or based on desired performance levels of one or more of the RATs. Gap patterns may be selected by a user equipment or base station. Gap patterns may be selected to protect information in certain subframes. Potential gap patterns may be assigned weights indicating their desirability.

摘要翻译： 为了提高能够使用多个无线电接入技术（RAT）进行通信的设备的性能，可以构建间隙模式，其中第一RAT在特定时间内被安静，以允许第二RAT在没有干扰的情况下运行。 间隙模式可以基于诸如授权调度和HARQ性能之类的时间线约束，或者基于一个或多个RAT的期望的性能水平来构建。 间隙模式可以由用户设备或基站选择。 可以选择间隙模式来保护某些子帧中的信息。 潜在的差距模式可以分配权重，指示其可取性。

公开(公告)号：US08208920B2

公开(公告)日：2012-06-26

申请号：US12349399

申请日：2009-01-06

申请人： Hemanth Sampath ,  Jeremy H. Lin ,  Kurt W. Otte ,  Rajat Prakash

发明人： Hemanth Sampath ,  Jeremy H. Lin ,  Kurt W. Otte ,  Rajat Prakash

IPC分类号： H04W4/00 ,  H04W36/00 ,  H04B1/38

CPC分类号： H04W36/0083 ,  H04W36/14 ,  H04W48/12 ,  H04W52/0229 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/164

摘要： A reference signal management (RSM) program executing on a mobile device detects multiple reference signals, allocates those reference signals into groups, and performs reference signal management functions using information conveyed in the reference signals. The RSM program detects both broadband and narrowband reference signals and maintains updated groups of reference signals that are transmitted from access points with independent configurations or different radio technologies. Battery power of the mobile device is efficiently used to manage reference signals in heterogeneous network environments by preventing unnecessary handoffs, overhead downloads, access probes and new registrations. Reference signals are managed from both synchronous and asynchronous sectors and in idle mode as well as in connected state mode. The RSM program performs functions such as managing handoffs between access points, managing an idle mode of the mobile device, managing an active group of the detected reference signals, and collecting overhead parameters for the mobile device.

摘要翻译： 在移动设备上执行的参考信号管理（RSM）程序检测多个参考信号，将这些参考信号分组，并使用在参考信号中传送的信息来执行参考信号管理功能。 RSM程序检测宽带和窄带参考信号，并维护从具有独立配置或不同无线电技术的接入点发送的更新的参考信号组。 通过防止不必要的切换，开销下载，接入探测和新的注册，移动设备的电池功率被有效地用于在异构网络环境中管理参考信号。 参考信号由同步和异步扇区以及空闲模式以及连接状态模式进行管理。 RSM程序执行诸如管理接入点之间的切换，管理移动设备的空闲模式，管理检测到的参考信号的活动组以及收集移动设备的开销参数的功能。

公开(公告)号：US20120087298A1

公开(公告)日：2012-04-12

申请号：US13250591

申请日：2011-09-30

申请人： Andrea Garavaglia ,  Rajat Prakash ,  Amer Catovic

发明人： Andrea Garavaglia ,  Rajat Prakash ,  Amer Catovic

IPC分类号： H04B7/14 ,  H04W4/00

CPC分类号： H04W24/02 ,  H04B7/2606 ,  H04W24/10 ,  H04W84/047 ,  H04W92/20

摘要： Certain aspects of the present disclosure provide techniques and apparatuses for wireless communications. The techniques generally include intercepting a report message from a relay node destined for a target base station, modifying the report message based on information not available at the relay node, and sending the modified report message to the target base station.

摘要翻译： 本公开的某些方面提供了用于无线通信的技术和装置。 这些技术通常包括从目的地为目标基站的中继节点拦截报告消息，基于中继节点不可用的信息修改报告消息，并将修改的报告消息发送到目标基站。

公开(公告)号：US08027302B2

公开(公告)日：2011-09-27

申请号：US12091445

申请日：2006-10-27

申请人： Rajat Prakash ,  Aamod Khandekar ,  Alexei Gorokhov

发明人： Rajat Prakash ,  Aamod Khandekar ,  Alexei Gorokhov

IPC分类号： H04J11/00 ,  H04W4/00

CPC分类号： H04W52/0235 ,  H04B17/318 ,  H04B17/382 ,  H04L1/0003 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/0675 ,  H04L27/2647 ,  H04L41/0803 ,  H04L41/083 ,  H04L41/0869 ,  H04W24/10 ,  H04W88/02 ,  Y02D30/32 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162

摘要： An apparatus and method of acknowledging transition to SelectedInterlacesOff state in a wireless communication system are described. A SelectedInterlaceAck message comprising an 8 bit MessageID field, a 12 bit PilotPN field wherein the PilotPN field is set to the PilotPN of the sector to which the message is directed, an 1 bit SelectedInterlaceEnabled field wherein the SelectedInterlaceEnabled field is set to “1” to indicate selected interlace mode enabled and to “0” otherwise and a 3 bit Reserved field wherein the Reserved field is of such length so that the entire message is octet-aligned and is set to “0” is generated and transmitted over a communication link.

摘要翻译： 描述了在无线通信系统中确认转换到SelectedInterlacesOff状态的装置和方法。 一个SelectedInterlaceAck消息，包括一个8比特MessageID字段，一个12比特PilotPN字段，其中PilotPN字段被设置为该消息所针对的扇区的PilotPN，一个SelectedInterlaceEnabled字段，其中SelectedInterlaceEnabled字段被设置为“1”到 指示选择的隔行扫描模式使能，否则为“0”，以及3位保留字段，其中保留字段具有这样的长度，使得整个消息是八位位组对齐的并且被设置为“0”并通过通信链路发送。

公开(公告)号：US08000407B2

公开(公告)日：2011-08-16

申请号：US12091452

申请日：2006-10-27

申请人： Rajat Prakash

发明人： Rajat Prakash

IPC分类号： H04L27/00

CPC分类号： H04W52/0235 ,  H04B17/318 ,  H04B17/382 ,  H04L1/0003 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/0675 ,  H04L27/2647 ,  H04L41/0803 ,  H04L41/083 ,  H04L41/0869 ,  H04W24/10 ,  H04W88/02 ,  Y02D30/32 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162

摘要： A method and apparatus of transmission and reception of SetManagementSameChannelParameters, the method comprising generating a SetManagementSameChannelParameters attribute comprising an 8 bit Length field, an 8 bit AttributeID field, a 6 bit PilotAdd field, a 6 bit PilotCompare field, a 6 bit PilotDrop field, a 4 bit PilotDropTimer field, a 1 bit DynamicThresholds field, a 0 or 6 bit SoftSlope field, a 0 or 6 bit AddIntercept field, a 0 or 6 DropIntercept field, a 4 bit NeighborMaxAge field and a variable bit Reserved field and transmitting the SetManagementSameChannelParameters attribute over an OFDM communication link.

摘要翻译： 一种发送和接收SetManagementSameChannelParameters的方法和装置，该方法包括生成一个SetManagementSameChannelParameters属性，该属性包括8位长度字段，8位AttributeID字段，6位PilotAdd字段，6位PilotCompare字段，6位PilotDrop字段， 4位PilotDropTimer字段，1位DynamicThresholds字段，0或6位SoftSlope字段，0或6位AddIntercept字段，0或6 DropIntercept字段，4位NeighborMaxAge字段和可变位保留字段，并发送SetManagementSameChannelParameters属性 通过OFDM通信链路。

公开(公告)号：US20110039576A1

公开(公告)日：2011-02-17

申请号：US12854790

申请日：2010-08-11

申请人： Rajat Prakash ,  Nathan E. Tenny ,  Parag A. Agashe ,  Stephen W. Edge

发明人： Rajat Prakash ,  Nathan E. Tenny ,  Parag A. Agashe ,  Stephen W. Edge

IPC分类号： H04W64/00

CPC分类号： H04W64/00 ,  G01S5/0236 ,  G01S19/03 ,  G01S19/14 ,  H04L29/08657 ,  H04W4/02

摘要： Apparatus and methods for determining a location estimate of a mobile device based on an extended set of assistance data are presented. The extended assistance data includes assistance data for base stations, such as cellular base stations and access points, not expected to be viewable by the mobile device in a (current) first geographical area but expected to be viewable by the mobile device in a (future) second geographical area. By seeding the mobile device with assistance data expected to be useful in the future, the network reduces messaging between the network and mobile device and battery consumption by the mobile device.

摘要翻译： 提出了用于基于扩展的一组辅助数据来确定移动设备的位置估计的装置和方法。 扩展的辅助数据包括诸如蜂窝基站和接入点之类的基站的辅助数据，不期望在（当前）第一地理区域中移动设备可以看到但预计在未来可由移动设备查看 ）第二地理区域。 通过将移动设备播种到预期将来有用的辅助数据，网络可以减少网络和移动设备之间的消息传送以及移动设备的电池消耗。

公开(公告)号：US20100279687A1

公开(公告)日：2010-11-04

申请号：US12771721

申请日：2010-04-30

申请人： Gavin Bernard Horn ,  Parag Arun Agashe ,  Rajarshi Gupta ,  Rajat Prakash

发明人： Gavin Bernard Horn ,  Parag Arun Agashe ,  Rajarshi Gupta ,  Rajat Prakash

IPC分类号： H04W60/00 ,  H04W36/00

CPC分类号： H04W36/0038 ,  H04W8/20 ,  H04W12/08 ,  H04W36/08 ,  H04W48/08

摘要： Access control for an access point (e.g., a cell of the access point) may be based on an access mode associated with the access point. For example, depending on the access mode, access control may involve performing a membership check for the access point. Such a membership check may be performed at a network entity, a source access point, or some other suitable location in a network. In some aspects, access control may involve performing a membership check for an access point in conjunction with a context fetch procedure. Such a procedure may be performed, for example, when an access terminal arrives at the access point after experiencing RLF at another access point.

公开(公告)号：US20100124172A1

公开(公告)日：2010-05-20

申请号：US12618105

申请日：2009-11-13

申请人： Nathan E. Tenny ,  Parag A. Agashe ,  Rajat Prakash

发明人： Nathan E. Tenny ,  Parag A. Agashe ,  Rajat Prakash

IPC分类号： H04L12/26 ,  H04W36/00

CPC分类号： H04W24/08 ,  H04W36/36

摘要： The number of handover-related failures that occur in a communication system may be reduced by taking target access point conditions into account when declaring radio link failure and/or by delaying certain handover operations. In some aspects, criteria for radio link failure detection and access terminal-controlled mobility may take into account access point parameters related to neighboring cells that may be available as mobility targets. For example, filtering mechanisms for detecting radio link failure based on radio layer problem reports may also take into account the availability of various neighbor access points and their measured signal strengths. In addition, a handover command may be sent earlier than in conventional systems (e.g., the handover command may be sent even though the target access point is weaker than the source access point) and include an indication that instructs the access terminal to delay handover until a specified condition is met. For example, handover may be delayed until the target access point becomes stronger than the source access point.

摘要翻译： 在宣告无线电链路故障和/或通过延迟某些切换操作时，通过考虑目标接入点条件可以减少在通信系统中发生的切换相关故障的数量。 在一些方面，用于无线电链路故障检测和接入终端控制的移动性的标准可以考虑与可能作为移动目标可用的相邻小区相关的接入点参数。 例如，用于基于无线电层问题报告检测无线电链路故障的过滤机制还可以考虑各种相邻接入点的可用性及其测量的信号强度。 此外，切换命令可以比传统系统更早发送（例如，即使目标接入点比源接入点更弱，也可以发送切换命令），并且包括指示接入终端延迟切换的指示，直到 满足指定条件。 例如，可以延迟切换，直到目标接入点变得比源接入点更强。

公开(公告)号：US20100069062A1

公开(公告)日：2010-03-18

申请号：US12352507

申请日：2009-01-12

申请人： Gavin B. Horn ,  Osok Song ,  Parag A. Agashe ,  Rajarshi Gupta ,  Fatih Ulupinar ,  Ravindra M. Patwardhan ,  Rajat Prakash

发明人： Gavin B. Horn ,  Osok Song ,  Parag A. Agashe ,  Rajarshi Gupta ,  Fatih Ulupinar ,  Ravindra M. Patwardhan ,  Rajat Prakash

IPC分类号： H04W4/00 ,  H04W68/00 ,  H04W60/00 ,  H04W48/00 ,  H04W24/00

CPC分类号： H04W68/00 ,  H04W4/02 ,  H04W4/021 ,  H04W4/08 ,  H04W60/00 ,  H04W68/04

摘要： Paging load and/or registration load in a network is reduced by using different types of identifiers to specifying which nodes page an access terminal in the network. In some aspects, the network maintains a list that specifies that certain individual nodes (e.g., cells or sectors) are to page a given access terminal and/or that one or more zones (e.g., tracking areas) are to page the access terminal. In some aspects, an access terminal in a network may be configured to provide a forward-looking paging list to the network. The list provided by an access terminal may specify different types of node identifiers (e.g., individual node identifiers, subscriber groups, etc.). The network may then use the list to determine which nodes are to page a given access terminal such that when the access terminal moves to a different node, that node may already be configured to page the access terminal. In some aspect paging load and registration load are managed in a deployment that includes different types of access points. For example, access points of a first type (e.g., macro nodes) may provide service over relatively large coverage areas and access points of a second type (e.g., femto nodes) may provide service over smaller coverage areas and/or provide restricted service.

摘要翻译： 通过使用不同类型的标识符来指定网络中的接入终端寻址哪些节点来减少网络中的寻呼加载和/或注册负载。 在一些方面，网络维护一个列表，该列表指定某些单个节点（例如，小区或扇区）将寻呼给定的接入终端和/或一个或多个区域（例如，跟踪区域）来寻呼接入终端。 在一些方面，网络中的接入终端可以被配置为向网络提供前瞻性寻呼列表。 由接入终端提供的列表可以指定不同类型的节点标识符（例如，各个节点标识符，订户组等）。 网络然后可以使用该列表来确定哪个节点将寻呼给定的接入终端，使得当接入终端移动到不同的节点时，该节点可能已经被配置为寻呼接入终端。 在某些方面，寻呼加载和注册负载在包括不同类型的接入点的部署中进行管理。 例如，第一类型的接入点（例如，宏节点）可以在相对较大的覆盖区域上提供服务，并且第二类型的接入点（例如，毫微微节点）可以在较小的覆盖区域上提供服务和/或提供受限服务。