公开(公告)号：US20080316969A1

公开(公告)日：2008-12-25

申请号：US12119979

申请日：2008-05-13

Applicant: Rajat Prakash ,  Aamod Khandekar ,  Alexei Gorokhov

Inventor： Rajat Prakash ,  Aamod Khandekar ,  Alexei Gorokhov

IPC: H04Q7/00

CPC classification number: H04W36/30

Abstract: Techniques for performing carrier switching in a multi-carrier access network are described. A terminal may be assigned to a carrier among multiple carriers having different transmit power levels, e.g., by the access network during system access or handoff. The terminal may receive a switch threshold from the access network. The terminal may periodically measure the received signal strength of the assigned carrier and may compare the received signal strength against the switch threshold. The terminal may refrain from switching to a stronger carrier if the received signal strength exceeds the switch threshold and may switch to the stronger carrier if the received signal strength is below the switch threshold. This carrier switching scheme may prevent the terminal from switching to the strongest carrier when the assigned carrier can provide satisfactory performance. The access network may also switch the terminal to another carrier by sending a carrier switch message.

Abstract translation: 描述用于在多载波接入网络中执行载波切换的技术。 例如在系统接入或切换期间由接入网络将终端分配给具有不同发射功率电平的多个载波之中的载波。 终端可以从接入网接收切换阈值。 终端可以周期性地测量所分配的载波的接收信号强度，并且可以将接收到的信号强度与开关阈值进行比较。 如果接收到的信号强度超过开关阈值，则终端可以避免切换到更强的载波，并且如果接收到的信号强度低于开关阈值，则可以切换到更强的载波。 当分配的载波可以提供令人满意的性能时，该载波切换方案可以防止终端切换到最强的载波。 接入网络还可以通过发送载波​​切换消息来将终端切换到另一载波。

公开(公告)号：US20080311914A1

公开(公告)日：2008-12-18

申请号：US12136495

申请日：2008-06-10

Applicant: Peerapol Tinnakornsrisuphap ,  Rajat Prakash ,  Fatih Ulupinar ,  David Ott

Inventor： Peerapol Tinnakornsrisuphap ,  Rajat Prakash ,  Fatih Ulupinar ,  David Ott

IPC: H04Q7/20

CPC classification number: H04W36/0083 ,  H04W8/005 ,  H04W92/20

Abstract: An automated neighbor discovery by a base station with the assistance of an access terminal are disclosed. An exemplary method includes receiving a first message from an access terminal based on detecting an identification signal by the access terminal from the first base station in a communication system. Determination whether the first base station is a known base station is then made. If the first base station is not known, a second message is transmitted to the access terminal requesting a network identification of the first base station. A third message from the access terminal is received in response to the second message including the requested network identification. A request for identification data is sent by the second base station to the first base station via a network link based on the network identification. Corresponding apparatus and other exemplary methods are also disclosed.

Abstract translation: 公开了一种基站在接入终端协助下的自动邻居发现。 一种示例性方法包括：基于在通信系统中从第一基站检测接入终端的识别信号，从接入终端接收第一消息。 然后确定第一基站是否是已知的基站。 如果第一基站不知道，则向接入终端发送第二消息，请求第一基站的网络标识。 响应于包括所请求的网络标识的第二消息，接收到来自接入终端的第三消息。 基于网络识别，第二基站通过网络链路向第一基站发送对识别数据的请求。 还公开了相应的装置和其它示例性方法。

公开(公告)号：US20080310357A1

公开(公告)日：2008-12-18

申请号：US12091469

申请日：2006-10-27

Applicant: Faith Ulupinar ,  Nileshkumar J. Parekh ,  Rajat Prakash

Inventor： Faith Ulupinar ,  Nileshkumar J. Parekh ,  Rajat Prakash

IPC: H04Q7/00

CPC classification number: 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 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162

Abstract: A method and apparatus for processing TuneAway operation by an access terminal and an access network in a wireless communication system is described. The beginning and end of tune away is determined from a TuneAway attribute, a TuneAwayRequest and a TuneAwayResponse messages. The access terminal and the access network operate on multiple tune away schedules. specifying tune away schedules by a separate TuneAway attribute. The same TuneAwayRequest and the TuneAwayResponse messages are shared. The tune away operation is controlled through a variable TunedAwayStatus, wherein the variable TunedAwayStatus is public data of the protocol. It is determined if an access terminal has tuned away.

Abstract translation: 描述了一种用于在无线通信系统中由接入终端和接入网络处理TuneAway操作的方法和装置。 音调的开始和结束由TuneAway属性，TuneAwayRequest和TuneAwayResponse消息确定。 接入终端和接入网络根据多个调出时间表进行操作。 指定通过单独的TuneAway属性调出计划。 相同的TuneAwayRequest和TuneAwayResponse消息是共享的。 调出操作通过变量TunedAwayStatus控制，其中变量TunedAwayStatus是协议的公共数据。 确定接入终端是否已经关闭。

公开(公告)号：US20080291868A1

公开(公告)日：2008-11-27

申请号：US12107000

申请日：2008-04-21

Applicant: Rajat Prakash ,  Parag Arun Agashe ,  Fatih Ulupinar ,  David R. Mazik ,  Ragulan Sinnarajah ,  Ravindra Patwardhan

Inventor： Rajat Prakash ,  Parag Arun Agashe ,  Fatih Ulupinar ,  David R. Mazik ,  Ragulan Sinnarajah ,  Ravindra Patwardhan

IPC: H04Q7/00

CPC classification number: H04W40/02 ,  H04W76/11 ,  H04W76/12 ,  H04W76/15 ,  H04W76/18

Abstract: A route protocol is established whereby a mobile device can communicate to a multitude of (receiving) base stations though a tunnel created through a serving base station. A message that includes a Route Creation Header can be transmitted by the mobile device to create the tunnel. The Route Creation Header is reviewed by the receiving base station while the mobile device is in a Waiting-To-Open State. Various errors might occur with respect to the Route Creation Header. These errors can be conveyed to the mobile device by base station by setting one or more error code fields. Once the errors are resolved, another attempt to create a tunnel with base station can be made, if desired.

Abstract translation: 建立路由协议，由此移动设备可以通过通过服务基站创建的隧道与多个（接收）基站进行通信。 包含路由创建报头的消息可以由移动设备发送以创建隧道。 当移动设备处于等待开放状态时，接收基站审查路由创建报头。 相对于路由创建标题可能会出现各种错误。 这些错误可以通过设置一个或多个错误代码字段由基站传送到移动设备。 一旦错误得到解决，如果需要，可以进行与基站建立隧道的另一尝试。

公开(公告)号：US20080119215A1

公开(公告)日：2008-05-22

申请号：US11851153

申请日：2007-09-06

Applicant: Tingfang Ji ,  Rajat Prakash ,  Alexei Gorokhov ,  Mohammad Jaber Borran ,  Arumugam Chendamarai Kannan

Inventor： Tingfang Ji ,  Rajat Prakash ,  Alexei Gorokhov ,  Mohammad Jaber Borran ,  Arumugam Chendamarai Kannan

IPC: H04B7/00 ,  H04B17/00

CPC classification number: H04W52/247 ,  H04W52/10 ,  H04W52/146 ,  H04W52/244 ,  H04W52/265 ,  H04W52/283 ,  H04W52/362 ,  H04W52/44 ,  H04W52/50

Abstract: Systems and methodologies are described that facilitate broadcasting an interference level and adjusting transmit power corresponding to a reverse link in accordance with the interference level. An interference indication can be broadcasted on a broadcast channel in a wireless communication system. In response to the broadcast, mobile devices can adjust transmit power on the reverse link based upon considerations of the interference level. Further, mobile devices can evaluate an initial set point of a transmit power level during periods of inactivity.

Abstract translation: 描述了根据干扰电平有助于广播干扰电平和调整与反向链路相对应的发射功率的系统和方法。 可以在无线通信系统中的广播信道上广播干扰指示。 响应于广播，移动设备可以基于干扰水平的考虑来调整反向链路上的发射功率。 此外，移动设备可以在不活动期间评估发射功率电平的初始设定点。

公开(公告)号：US20080043879A1

公开(公告)日：2008-02-21

申请号：US11766353

申请日：2007-06-21

Applicant: Alexei Gorokhov ,  Aamod Khandekar ,  Ravi Palanki ,  Rajat Prakash

Inventor： Alexei Gorokhov ,  Aamod Khandekar ,  Ravi Palanki ,  Rajat Prakash

IPC: H04L25/03

CPC classification number: H04L27/2613 ,  H04B17/24 ,  H04B17/345 ,  H04B17/382 ,  H04L1/0026 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0091 ,  H04W16/14 ,  H04W52/08 ,  H04W52/24 ,  H04W52/243 ,  H04W52/247 ,  H04W72/082

Abstract: Wireless communications methods and apparatus are described. A communications apparatus, e.g., a base station, measures interference information, e.g., other sector interference information. The communications apparatus generates a preamble which includes a plurality of pilot symbols and at least one of the pilot symbols includes interference information. In some embodiments, the preamble is part of a superframe structure, e.g., a recurring superframe structure, including the preamble and a plurality of frames, at least some of the frames used to convey traffic data. The communications apparatus transmits the preamble, thus broadcasting the interference information to access terminals in the vicinity. An access terminal receives the preamble including a plurality of pilot signals, at least one of the pilot signals including interference information. The access terminal recovers the interference information from the received preamble and controls signal transmission based on the recovered interference information.

Abstract translation: 描述了无线通信方法和装置。 通信装置，例如基站，测量干扰信息，例如其他扇区干扰信息。 通信装置生成包括多个导频符号的前导码，并且导频符号中的至少一个包括干扰信息。 在一些实施例中，前导码是超帧结构的一部分，例如，包括前导码和多个帧的循环超帧结构，用于传送业务数据的至少一些帧。 通信装置发送前导码，从而将干扰信息广播到附近的接入终端。 接入终端接收包括多个导频信号的前导码，所述导频信号中的至少一个包括干扰信息。 接入终端从接收到的前导码中恢复干扰信息，并根据恢复的干扰信息控制信号传输。

公开(公告)号：US20070287462A1

公开(公告)日：2007-12-13

申请号：US11761790

申请日：2007-06-12

Applicant: Alexei Gorokhov ,  Aamod Khandekar ,  Tamer Kadous ,  Mohammad Borran ,  Rajat Prakash

Inventor： Alexei Gorokhov ,  Aamod Khandekar ,  Tamer Kadous ,  Mohammad Borran ,  Rajat Prakash

IPC: H04Q7/20

CPC classification number: H04W36/30 ,  H04L5/0023 ,  H04L5/0048 ,  H04L27/2613 ,  H04W36/36

Abstract: Techniques for selecting serving sectors and performing handoff for a terminal on the forward and reverse links are described. The terminal may obtain pilot measurements for pilots transmitted on the forward link and may update an active set based on the pilot measurements. The terminal may send a transmission (e.g., for pilot, signaling, etc.) on the reverse link and may receive channel quality information indicative of reverse link channel quality for the terminal at multiple sectors in the active set. The transmission may include pilot, and the channel quality information from each sector may include a pilot carrier-over-thermal ratio (pCoT) determined by that sector based on the pilot. The terminal may select a serving sector based on the channel quality information, interference information, and/or other information and may send a request for handoff (e.g., via a signaling message an/or an access probe) to the selected serving sector.

Abstract translation: 描述用于选择服务扇区并对前向和反向链路上的终端执行切换的技术。 终端可以获得在前向链路上发送的导频的导频测量，并且可以基于导频测量来更新活动集。 终端可以在反向链路上发送传输（例如，用于导频，信令等），并且可以在活动集中的多个扇区处接收指示终端的反向链路信道质量的信道质量信息。 传输可以包括导频，并且来自每个扇区的信道质量信息可以包括由该扇区基于导频确定的导频载波热传输比（pCoT）。 终端可以基于信道质量信息，干扰信息和/或其他信息来选择服务扇区，并且可以向所选择的服务扇区发送切换请求（例如，经由信令消息，或访问探测器）。

公开(公告)号：US20070286151A1

公开(公告)日：2007-12-13

申请号：US11759887

申请日：2007-06-07

Applicant: Rajat Prakash ,  Fatih Ulupinar ,  Gavin Horn ,  Paul E. Bender

Inventor： Rajat Prakash ,  Fatih Ulupinar ,  Gavin Horn ,  Paul E. Bender

IPC: H04J3/24 ,  H04L12/56

CPC classification number: H04L61/6004 ,  H04L29/12028 ,  H04L29/12801 ,  H04L29/12943 ,  H04L61/103 ,  H04L61/6072 ,  H04W36/023 ,  H04W88/08

Abstract: Methods and apparatus for communicating between an access terminal (AT) and a device serving the AT by way of an Access Point (AP) are described. In accordance with one feature serving devices may be assigned specific addresses which are interpreted based on the source of the communication, e.g., MAC packet, in which the address is used. Such addresses may be interpreted as being of a different type than other addresses which can be interpreted and/or used without taking into account the identity of the sender. In some embodiments Session Controllers and/or Internet Attachment Points (IAPs) are identified with such addresses. The address value is the same for one or more ATs but is interpreted at an AP receiving such the IAP address based on information corresponding to the AT which sent the packet including the IAP or Session Controller address.

Abstract translation: 描述了通过接入点（AP）在接入终端（AT）和服务于AT的设备之间进行通信的方法和装置。 根据一个特征，服务设备可以被分配特定的地址，这些地址是基于使用该地址的通信源，例如MAC包解释的。 这样的地址可以被解释为与可以被解释和/或使用的其他地址不同的类型，而不考虑发送者的身份。 在一些实施例中，会话控制器和/或因特网附件点（IAP）被识别为具有这样的地址。 地址值对于一个或多个AT是相同的，但是在接收到这样的IAP地址的AP处解释，该AP基于与发送包括IAP或会话控制器地址的分组相对应的AT。

公开(公告)号：US20070105575A1

公开(公告)日：2007-05-10

申请号：US11553417

申请日：2006-10-26

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

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

IPC: H04B7/00

CPC classification number: H04W52/243 ,  H04W52/34 ,  H04W72/04 ,  H04W72/0406 ,  H04W72/082

Abstract: 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.

Abstract translation: 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：US20070097922A1

公开(公告)日：2007-05-03

申请号：US11261803

申请日：2005-10-27

Applicant: Nileshkumar Parekh ,  Fatih Ulupinar ,  Rajat Prakash

Inventor： Nileshkumar Parekh ,  Fatih Ulupinar ,  Rajat Prakash

IPC: H04Q7/00

CPC classification number: H04W68/12 ,  H04W36/0066 ,  H04W36/0083

Abstract: Systems and methods are provided for processing wireless signal components for a mobile wireless access broadband service. This can include processes for defining a protocol that controls whether to invoke a tune away component to determine an alternative wireless communications path. This can include defining one or more tune away parameters for the tune away component. The process can then automatically select the alternative wireless communications path based in part on the tune away procedure and at least one of the tune away parameters.

Abstract translation: 提供了用于处理用于移动无线接入宽带服务的无线信号组件的系统和方法。 这可以包括用于定义协议的过程，该协议控制是否调用音调离开组件来确定替代的无线通信路径。 这可以包括为调出组件定义一个或多个调出的参数。 该过程然后可以部分地基于调离过程和至少一个离开参数来自动选择替代无线通信路径。