公开(公告)号：US08437306B2

公开(公告)日：2013-05-07

申请号：US12187539

申请日：2008-08-07

申请人： Rashid Ahmed Akbar Attar ,  Arnaud Meylan ,  Sai Yiu Duncan Ho ,  Francesco Grilli ,  Nathan Edward Tenny ,  Peter Anthony Barany

发明人： Rashid Ahmed Akbar Attar ,  Arnaud Meylan ,  Sai Yiu Duncan Ho ,  Francesco Grilli ,  Nathan Edward Tenny ,  Peter Anthony Barany

IPC分类号： H04W4/00

CPC分类号： H04W36/02 ,  H04L47/10 ,  H04L47/14 ,  H04L47/34 ,  H04W36/08 ,  H04W92/20

摘要： Techniques for sending data during handover with Layer 2 tunneling are described. In one design, a user equipment (UE) sends first Layer 2 packets to a source base station prior to handover to a target base station. The UE sends at least one second Layer 2 packet to the target base station, which identifies the second Layer 2 packet(s) as being intended for the source base station and thus forwards the second Layer 2 packet(s) to the source base station via a Layer 2 tunnel. The UE sends third Layer 2 packets to the target base station after the handover. The target base station processes the third Layer 2 packets to obtain IP packets and sends the IP packets to a serving gateway after a trigger condition, which may be defined to achieve in-order delivery of IP packets from the source and target base stations to the serving gateway.

摘要翻译： 描述用于在第二层隧道切换期间发送数据的技术。 在一种设计中，用户设备（UE）在切换到目标基站之前将第一层2分组发送到源基站。 UE向目标基站发送至少一个第二层2分组，目标基站将第二层分组标识为源基站，从而将第二层分组转发到源基站 通过二层隧道。 移交后，UE向目标基站发送第三层报文。 目标基站处理第三层数据包以获得IP数据包，并在触发条件之后将IP数据包发送到服务网关，触发条件可以被定义为实现从源和目标基站到IP地址的IP分组的按顺序传送 服务网关。

公开(公告)号：US08396152B2

公开(公告)日：2013-03-12

申请号：US11676981

申请日：2007-02-20

申请人： Rashid Ahmed Akbar Attar ,  Naga Bhushan ,  Mingxi Fan ,  Yongbin Wei

发明人： Rashid Ahmed Akbar Attar ,  Naga Bhushan ,  Mingxi Fan ,  Yongbin Wei

IPC分类号： H04B7/02

CPC分类号： H04L5/1438 ,  H04B7/0452 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0639 ,  H04J13/0044 ,  H04L1/0002 ,  H04L1/0025 ,  H04L1/0028 ,  H04L1/06 ,  H04L1/1671 ,  H04L1/1812 ,  H04L5/0026 ,  H04L5/0048 ,  H04L5/023 ,  H04L25/0204 ,  H04L25/0206 ,  H04L25/0226 ,  H04L27/2613 ,  H04W28/06 ,  H04W28/18 ,  H04W48/08 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/144 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/444

摘要： A data-optimized communication system provides support for legacy access terminals, such as access terminals operating under the 1xEV-DO standard. The system also supports multiple-input multiple-output (MIMO) communications with access terminals configured to support MIMO. A number of MIMO spatial signatures are predefined or negotiated. MIMO rank and an identifier of the spatial signature determined at the MIMO access terminal are sent on the I-Branch and Q-Branch of the existing 1xEV-DO structure. In one embodiment, 1-bit rank and 3-bit spatial signature are transmitted through the I-Branch as a 4-bit symbol, replacing the data rate control (DRC) channel. In another embodiment, a 4-bit spatial signature is transmitted through the I-Branch, also replacing the DRC channel. A 2-bit rank is transmitted together with a 4-bit DRC channel through the Q-Branch. The 2-bit rank and the DRC channel can be distinguished because they are sent using different orthogonal codeword Walsh covers.

摘要翻译： 数据优化的通信系统为传统接入终端提供支持，例如在1xEV-DO标准下运行的接入终端。 该系统还支持配置为支持MIMO的接入终端的多输入多输出（MIMO）通信。 许多MIMO空间签名是预定义或协商的。 在现有1xEV-DO结构的I-Branch和Q-Branch上发送MIMO秩和在MIMO接入终端确定的空间签名的标识符。 在一个实施例中，1比特等级和3比特空间签名作为4比特符号通过I-Branch传送，代替数据速率控制（DRC）信道。 在另一个实施例中，通过I-Branch传送4位空间签名，也代替DRC信道。 2位等级通过Q-Branch与4位DRC通道一起发送。 可以区分2位等级和DRC信道，因为它们使用不同的正交码字Walsh覆盖发送。

公开(公告)号：US08385923B2

公开(公告)日：2013-02-26

申请号：US11506068

申请日：2006-08-16

申请人： Rashid Ahmed Akbar Attar ,  Naga Bhushan ,  Peter John Black ,  Rajesh K. Pankaj ,  Danlu Zhang ,  Qiang Wu ,  Mehmet Yavuz

发明人： Rashid Ahmed Akbar Attar ,  Naga Bhushan ,  Peter John Black ,  Rajesh K. Pankaj ,  Danlu Zhang ,  Qiang Wu ,  Mehmet Yavuz

IPC分类号： H04W40/00

CPC分类号： H04W36/18 ,  H04W36/30 ,  H04W36/38 ,  H04W72/00 ,  H04W99/00

摘要： Embodiments disclosed herein relate to methods and systems for providing adaptive server selection in wireless communications. An access terminal may be configured to determine a forward link quality metric associated with each of a plurality of sectors serviced by a plurality of access points; assign credits to each sector in relation to the forward link quality metric; and change a data source control (DSC) value if the credits accumulated for a non-serving sector at a DSC change boundary is greater than a predetermined threshold, where the non-serving sector and the serving sector for the access terminal belong to different cells. The access terminal may be further configured to change a data rate control (DRC) cover in accordance with the DSC change. The use of DSC may provide an early indication of handoff, thereby allowing the service outage associated with server switching to be substantially reduced.

摘要翻译： 本文公开的实施例涉及用于在无线通信中提供自适应服务器选择的方法和系统。 接入终端可以被配置为确定与由多个接入点服务的多个扇区中的每一个相关联的前向链路质量度量; 根据前向链路质量度量为每个扇区分配信用; 并且如果在DSC变化边界处为非服务扇区累积的积分大于预定阈值，则所述数据源控制（DSC）值改变，其中所述非服务扇区和所述接入终端的服务扇区属于不同的小区 。 接入终端还可以被配置为根据DSC变化改变数据速率控制（DRC）覆盖。 使用DSC可以提供切换的早期指示，从而允许大大减少与服务器切换相关联的服务中断。

公开(公告)号：US08208925B2

公开(公告)日：2012-06-26

申请号：US13100802

申请日：2011-05-04

申请人： Rashid Ahmed Akbar Attar ,  Durga Prasad Malladi ,  Francesco Grilli ,  Kirti Gupta ,  Lorenzo Casaccia ,  Nathan Edward Tenny ,  Oronzo Flore

发明人： Rashid Ahmed Akbar Attar ,  Durga Prasad Malladi ,  Francesco Grilli ,  Kirti Gupta ,  Lorenzo Casaccia ,  Nathan Edward Tenny ,  Oronzo Flore

IPC分类号： H04W36/00

CPC分类号： H04W36/0061 ,  H04W36/38

摘要： An inter-system handover system for a wireless communication system supports hand-down and hand-up of user equipment (UE) to different radio access technologies, including synchronous and asynchronous systems. Latency and handover connection failures are reduced by an access node (nodeB) broadcasting information about neighboring systems (targets) when the UE reception (RX) capability is both inside or outside the reception range of the target. A single RX chain is sufficient, although transitioning between a wireless wide area network (WWAN) to a wireless local area network may (WLAN) may advantageously benefit from simultaneous operation on two Rx chains. Optimized list of neighboring RAT systems (targets) are broadcast from the network, including measurement parameters and reporting instructions. Thereby, UE-driven reporting minimizes latencies. UE reports other-system searches to network only if needed for a handover. In addition, handover requests can be bundled with other-system measurement information, if necessary, for additional efficiencies.

摘要翻译： 用于无线通信系统的系统间切换系统支持用户设备（UE）向包括同步和异步系统的不同无线电接入技术的切换和交换。 当UE接收（RX）能力在目标的接收范围内部或外部时，接入节点（节点B）广播关于相邻系统（目标）的信息的延迟和切换连接故障被减少。 单个RX链是足够的，尽管在无线广域网（WWAN）到无线局域网（WLAN）之间的转换可以有利地受益于在两个Rx链上的同时操作。 相邻RAT系统（目标）的优化列表从网络广播，包括测量参数和报告指令。 因此，UE驱动的报告使延迟最小化。 只有在切换需要时，UE才会将其他系统搜索报告给网络。 此外，如果需要，可以将切换请求与其他系统的测量信息捆绑在一起以用于附加的效率。

公开(公告)号：US20110275380A1

公开(公告)日：2011-11-10

申请号：US12776493

申请日：2010-05-10

申请人： Jing Sun ,  Qiang Wu ,  Rashid Ahmed Akbar Attar ,  Mehmet I. Gurelli

发明人： Jing Sun ,  Qiang Wu ,  Rashid Ahmed Akbar Attar ,  Mehmet I. Gurelli

IPC分类号： H04W72/04 ,  H04L27/28

CPC分类号： H04L25/03006

摘要： A method for interference cancellation in a device that receives transmissions from multiple sources is disclosed. The method includes receiving multiple slots, each including a pilot segment and a traffic segment. A first one of the slots includes information indicating an activity level of a traffic segment of the first one of the slots. The method also includes calculating a value associated with interference among the plurality of slots, utilizing the information indicating the activity level to account for an amount of interference attributable to the first one of the slots. Furthermore, channel conditions are estimated for a second one of the slots using the value associated with the amount of interference. The method also includes processing the second one of the slots according to the estimated channel conditions.

摘要翻译： 公开了一种用于从多个源接收传输的设备中的干扰消除的方法。 该方法包括接收多个时隙，每个时隙包括导频段和业务段。 时隙中的第一个包括指示第一个时隙的业务段的活动级别的信息。 该方法还包括使用指示活动级别的信息来计算归因于第一个时隙的干扰量，计算与多个时隙之间的干扰相关联的值。 此外，使用与干扰量相关联的值，针对第二个时隙估计信道条件。 该方法还包括根据估计的信道条件来处理第二个时隙。

公开(公告)号：US20100165922A1

公开(公告)日：2010-07-01

申请号：US12628824

申请日：2009-12-01

申请人： Min Wang ,  Ananthapadmanabhan Arasanipalai Kandhadai ,  Ravindra Patwardhan ,  Rashid Ahmed Akbar Attar ,  Yu-Cheun Jou

发明人： Min Wang ,  Ananthapadmanabhan Arasanipalai Kandhadai ,  Ravindra Patwardhan ,  Rashid Ahmed Akbar Attar ,  Yu-Cheun Jou

IPC分类号： H04W40/00

CPC分类号： H04S1/007

摘要： A communication system for use in a wireless network includes: an audio module configured to provide packets indicative of audio for a part of a communication between the communication system and another communication system, the communication spanning packet times, the packets including at least critical packets indicative of critical audio; and a transceiver coupled to the audio module and configured to cause: the critical packets to be conveyed for transmission; and first non-critical packets, indicative of non-critical audio, to be conveyed for transmission such that (1) the first non-critical packets represent less than all of a time between transmission of critical packets and (2) no more than a threshold number of packet times will pass without one of the critical packets or one of the first non-critical packets being conveyed by the transceiver for transmission.

摘要翻译： 用于无线网络的通信系统包括：音频模块，被配置为提供指示通信系统与另一通信系统之间的通信的一部分的音频的分组，跨越分组时间的通信，所述分组至少包括关键分组指示 的关键音频; 以及耦合到所述音频模块并被配置为使得所述关键分组被传送以进行传输的收发器; 和指示非关键音频的第一非关键分组被传送用于传输，使得（1）第一非关键分组表示小于关键分组传输之间的所有时间，和（2）不超过一个 分组时间的阈值数将通过，而没有关键分组之一或由收发器传送的第一非关键分组之一用于传输。

公开(公告)号：US20100105380A1

公开(公告)日：2010-04-29

申请号：US12259501

申请日：2008-10-28

申请人： Rashid Ahmed Akbar Attar ,  Nathan Edward Tenny ,  Masato Kitazoe

发明人： Rashid Ahmed Akbar Attar ,  Nathan Edward Tenny ,  Masato Kitazoe

IPC分类号： H04W4/00

CPC分类号： H04W48/16 ,  H04W48/12

摘要： Techniques for broadcasting system information in a wireless communication network are described. A cell may support one or more public land mobile networks (PLMNs). The cell may send a PLMN table in a first message on a broadcast channel and may send at least one index to the PLMN table in a second message on the broadcast channel. The PLMN table may include entries for different possible PLMNs or different possible combinations of PLMNs. A UE may receive the first message from a serving cell and may receive the second message from a candidate cell for cell reselection. The UE may obtain the PLMN table from the first message and may obtain at least one index to the PLMN table from the second message. The UE may determine whether the second cell is accessible by the UE based on the PLMN table and the at least one index.

摘要翻译： 描述在无线通信网络中广播系统信息的技术。 小区可以支持一个或多个公共陆地移动网络（PLMN）。 小区可以在广播信道上的第一消息中发送PLMN表，并且可以在广播信道上的第二消息中向PLMN表发送至少一个索引。 PLMN表可以包括用于不同可能PLMN的条目或PLMN的不同可能组合的条目。 UE可以从服务小区接收第一消息，并且可以从用于小区重选的候选小区接收第二消息。 UE可以从第一消息获得PLMN表，并且可以从第二消息获得PLMN表的至少一个索引。 UE可以基于PLMN表和至少一个索引来确定UE是否可以访问第二小区。

公开(公告)号：US20090124259A1

公开(公告)日：2009-05-14

申请号：US12187539

申请日：2008-08-07

申请人： Rashid Ahmed Akbar Attar ,  Arnaud Meylan ,  Sai Yiu Duncan Ho ,  Francesco Grilli ,  Nathan Edward Tenny ,  Peter Anthony Barany

发明人： Rashid Ahmed Akbar Attar ,  Arnaud Meylan ,  Sai Yiu Duncan Ho ,  Francesco Grilli ,  Nathan Edward Tenny ,  Peter Anthony Barany

IPC分类号： H04W36/00

CPC分类号： H04W36/02 ,  H04L47/10 ,  H04L47/14 ,  H04L47/34 ,  H04W36/08 ,  H04W92/20

摘要： Techniques for sending data during handover with Layer 2 tunneling are described. In one design, a user equipment (UE) sends first Layer 2 packets to a source base station prior to handover to a target base station. The UE sends at least one second Layer 2 packet to the target base station, which identifies the second Layer 2 packet(s) as being intended for the source base station and thus forwards the second Layer 2 packet(s) to the source base station via a Layer 2 tunnel. The UE sends third Layer 2 packets to the target base station after the handover. The target base station processes the third Layer 2 packets to obtain IP packets and sends the IP packets to a serving gateway after a trigger condition, which may be defined to achieve in-order delivery of IP packets from the source and target base stations to the serving gateway.

摘要翻译： 描述了在切换第二层隧道期间发送数据的技术。 在一种设计中，用户设备（UE）在切换到目标基站之前将第一层2分组发送到源基站。 UE向目标基站发送至少一个第二层2分组，目标基站将第二层分组标识为源基站，从而将第二层分组转发到源基站 通过二层隧道。 移交后，UE向目标基站发送第三层报文。 目标基站处理第三层数据包以获得IP数据包，并在触发条件之后将IP数据包发送到服务网关，触发条件可以被定义为实现从源和目标基站到IP地址的IP分组的按顺序传送 服务网关。

公开(公告)号：US20090040982A1

公开(公告)日：2009-02-12

申请号：US12187255

申请日：2008-08-06

申请人： Sai Yiu Ho ,  Arnaud Meylan ,  Peter Anthony Barany ,  Francesco Grilli ,  Nathan Edward Tenny ,  Rashid Ahmed Akbar Attar

发明人： Sai Yiu Ho ,  Arnaud Meylan ,  Peter Anthony Barany ,  Francesco Grilli ,  Nathan Edward Tenny ,  Rashid Ahmed Akbar Attar

IPC分类号： H04Q7/20

CPC分类号： H04W36/02 ,  H04L1/1874 ,  H04L1/1896 ,  H04L2001/0092 ,  H04W36/0033

摘要： An apparatus, method, processor(s), and computer program product avoids user data loss by network-controlled, user equipment assisted handover in a wireless data packet communication system. A wireless receiver receives radio link control (RLC) packet data units (PDUs) from user equipment (UE) being served by a source node. A wireless transmitter commands the UE to handover. A network communication interface transmits RLC Uplink (UL) context from the source node to the target node, and transmits RLC Downlink (DL) initialization message and buffered in-transit DL RLC PDUs from the source node to the target node.

摘要翻译： 一种装置，方法，处理器和计算机程序产品通过无线数据分组通信系统中的网络控制的用户设备辅助切换来避免用户数据丢失。 无线接收机从由源节点服务的用户设备（UE）接收无线链路控制（RLC）分组数据单元（PDU）。 无线发射机命令UE进行切换。 网络通信接口将RLC上行链路（UL）上下文从源节点发送到目标节点，并将RLC下行链路（DL）初始化消息和缓冲的传输中的DL RLC PDU从源节点发送到目标节点。

公开(公告)号：US08953464B2

公开(公告)日：2015-02-10

申请号：US12776493

申请日：2010-05-10

申请人： Jing Sun ,  Qiang Wu ,  Rashid Ahmed Akbar Attar ,  Mehmet I. Gurelli

发明人： Jing Sun ,  Qiang Wu ,  Rashid Ahmed Akbar Attar ,  Mehmet I. Gurelli

IPC分类号： H04B7/204 ,  H04L25/03

CPC分类号： H04L25/03006

摘要： A method for interference cancellation in a device that receives transmissions from multiple sources is disclosed. The method includes receiving multiple slots, each including a pilot segment and a traffic segment. A first one of the slots includes information indicating an activity level of a traffic segment of the first one of the slots. The method also includes calculating a value associated with interference among the plurality of slots, utilizing the information indicating the activity level to account for an amount of interference attributable to the first one of the slots. Furthermore, channel conditions are estimated for a second one of the slots using the value associated with the amount of interference. The method also includes processing the second one of the slots according to the estimated channel conditions.

摘要翻译： 公开了一种用于从多个源接收传输的设备中的干扰消除的方法。 该方法包括接收多个时隙，每个时隙包括导频段和业务段。 时隙中的第一个包括指示第一个时隙的业务段的活动级别的信息。 该方法还包括使用指示活动级别的信息来计算归因于第一个时隙的干扰量，计算与多个时隙之间的干扰相关联的值。 此外，使用与干扰量相关联的值，针对第二个时隙估计信道条件。 该方法还包括根据估计的信道条件来处理第二个时隙。