METHOD AND APPARATUS FOR REDUCING DATA LOSS DURING HANDOVER IN A WIRELESS COMMUNICATION SYSTEM
    1.
    发明申请
    METHOD AND APPARATUS FOR REDUCING DATA LOSS DURING HANDOVER IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
    用于在无线通信系统中切换数据丢失的方法和装置

    公开(公告)号:US20100027503A1

    公开(公告)日:2010-02-04

    申请号:US12183741

    申请日:2008-07-31

    IPC分类号: H04Q7/00

    CPC分类号: H04W36/02 H04W36/08

    摘要: Techniques for buffering and resending data in order to reduce data loss during handover are described. A network controller may determine whether or not to buffer data for a user equipment (UE). The network controller may continuously buffer a predetermined amount of latest data sent to a serving Node B if a decision is made to buffer the data for the UE. In one design, the network controller may send data for the UE to a source Node B, perform handover of the UE from the source Node B to a target Node B, resend to the target Node B a portion of the data sent previously to the source Node B, and send new data for the UE to the target Node B. e.g., after the resent data. The buffer and resend feature may be selectively enabled or disabled for each data flow for the UE.

    摘要翻译: 描述了用于缓冲​​和重新发送数据以减少切换期间的数据丢失的技术。 网络控制器可以确定是否缓冲用户设备(UE)的数据。 如果决定缓冲用于UE的数据,则网络控制器可以连续地缓冲发送到服务节点B的预定量的最新数据。 在一种设计中,网络控制器可以将UE的数据发送到源节点B,执行UE从源节点B到目标节点B的切换,向目标节点B重新发送先前发送给 源节点B,并且将UE的新数据发送到目标节点B.例如,在重发数据之后。 可以针对UE的每个数据流选择性地启用或禁用缓冲区和重新发送功能。

    Handling of MAC-hs/ehs reset in enhanced serving cell change
    3.
    发明授权
    Handling of MAC-hs/ehs reset in enhanced serving cell change 有权
    处理MAC-hs / ehs在增强的服务小区更改中重置

    公开(公告)号:US08611942B2

    公开(公告)日:2013-12-17

    申请号:US12495947

    申请日:2009-07-01

    IPC分类号: H04B7/00

    摘要: Systems and methodologies are described that effectuate and/or facilitate MAC-hs/ehs resets in an enhanced serving cell. In accordance with various aspects set forth herein, systems and/or methods are provided that identify transmission power control bits included in active set update messages received from source or target base stations, ascertain whether or not transmission power control values included in the active set update messages differ from transmission power control values that the system currently operates under, and performs serving cell changes and where necessary media access control status resets based on an examination of a transmission power control combination index.

    摘要翻译: 描述了在增强的服务小区中实现和/或促进MAC-hs / ehs复位的系统和方法。 根据本文所阐述的各个方面,提供了识别从源或目标基站接收的有效集更新消息中包括的传输功率控制位的系统和/或方法,确定包括在活动集中的发射功率控制值是否更新 消息不同于系统当前在其下运行的传输功率控制值,并且执行服务小区改变,并且在必要时媒体访问控制状态基于对发射功率控制组合索引的检查而复位。

    EFFICIENT SIGNALING FOR CLOSED-LOOP TRANSMIT DIVERSITY
    4.
    发明申请
    EFFICIENT SIGNALING FOR CLOSED-LOOP TRANSMIT DIVERSITY 有权
    用于闭环发射多样性的有效信号

    公开(公告)号:US20110085537A1

    公开(公告)日:2011-04-14

    申请号:US12575936

    申请日:2009-10-08

    IPC分类号: H03M7/40 H04L27/00 H04B7/216

    CPC分类号: H04B7/0619 H04B7/0636

    摘要: Techniques for encoding a phase adjustment for a feedback signal in a closed-loop transmit diversity system. In an aspect, codewords for the phase adjustments are chosen according to a variable-length prefix code. The prefix code aspect allows the codewords to be transmitted in sequence on the feedback channel without being separated by “commas” or demarcation symbols. The variable-length aspect provides a variety of coarse and fine phase adjustment quantization step sizes to accommodate multiple different channel scenarios. In an aspect, the length of the codewords may be further optimized according to the Huffman encoding algorithm.

    摘要翻译: 用于编码闭环发射分集系统中的反馈信号的相位调整的技术。 在一方面,根据可变长度前缀码来选择用于相位调整的码字。 前缀码方面允许在反馈信道上依次发送码字,而不用“逗号”或分界符号分隔。 可变长度方面提供了各种粗调和精细相位调整量化步长以适应多种不同的频道场景。 在一方面,可以根据霍夫曼编码算法进一步优化码字的长度。

    System and method for performing a radio link control (RLC) reset in a downlink multipoint system
    5.
    发明授权
    System and method for performing a radio link control (RLC) reset in a downlink multipoint system 有权
    用于在下行链路多点系统中执行无线电链路控制(RLC)复位的系统和方法

    公开(公告)号:US08902833B2

    公开(公告)日:2014-12-02

    申请号:US13333999

    申请日:2011-12-21

    摘要: A method and apparatus for wireless communication may provide an RLC reset procedure tailored for a multipoint HSDPA system utilizing a plurality of disparate Node Bs to provide an RLC flow from an RNC to a UE. Some aspects of the disclosure provide for a flush request to be provided to each of a plurality of Node Bs utilized as serving cells in the multipoint HSDPA system, so that stale packets are not retained in internal buffers at the Node Bs following the RLC reset procedure. In some examples, the RLC reset procedure is only completed after confirmation that the flush of the internal buffers has been completed. Confirmation may be explicitly provided by each Node B utilizing a backhaul interface, or may be implicitly determined utilizing timers or signaling between the respective Node Bs.

    摘要翻译: 用于无线通信的方法和装置可以提供为多点HSDPA系统量身定制的RLC复位过程,该多点HSDPA系统利用多个不同的节点B来提供从RNC到UE的RLC流。 本公开的一些方面提供了将被提供给用作多点HSDPA系统中的服务小区的多个节点B中的每一个的刷新请求,使得在RLC重置过程之后,不稳定的分组不保留在节点B处的内部缓冲器中 。 在一些示例中,RLC复位过程仅在确认内部缓冲器的刷新已经完成之后才完成。 每个节点B可以使用回程接口明确地提供确认,或者可以使用相应节点B之间的定时器或信令来隐含地确定。

    SYSTEM AND METHOD FOR PERFORMING A RADIO LINK CONTROL (RLC) RESET IN A DOWNLINK MULTIPOINT SYSTEM
    6.
    发明申请
    SYSTEM AND METHOD FOR PERFORMING A RADIO LINK CONTROL (RLC) RESET IN A DOWNLINK MULTIPOINT SYSTEM 有权
    用于在下行链路多点系统中执行无线链路控制(RLC)复位的系统和方法

    公开(公告)号:US20120163315A1

    公开(公告)日:2012-06-28

    申请号:US13333999

    申请日:2011-12-21

    IPC分类号: H04W72/04 H04W88/08

    摘要: A method and apparatus for wireless communication may provide an RLC reset procedure tailored for a multipoint HSDPA system utilizing a plurality of disparate Node Bs to provide an RLC flow from an RNC to a UE. Some aspects of the disclosure provide for a flush request to be provided to each of a plurality of Node Bs utilized as serving cells in the multipoint HSDPA system, so that stale packets are not retained in internal buffers at the Node Bs following the RLC reset procedure. In some examples, the RLC reset procedure is only completed after confirmation that the flush of the internal buffers has been completed. Confirmation may be explicitly provided by each Node B utilizing a backhaul interface, or may be implicitly determined utilizing timers or signaling between the respective Node Bs.

    摘要翻译: 用于无线通信的方法和装置可以提供为多点HSDPA系统量身定制的RLC复位过程,该多点HSDPA系统利用多个不同的节点B来提供从RNC到UE的RLC流。 本公开的一些方面提供了将被提供给用作多点HSDPA系统中的服务小区的多个节点B中的每一个的刷新请求,使得在RLC重置过程之后,不稳定的分组不保留在节点B处的内部缓冲器中 。 在一些示例中,RLC复位过程仅在确认内部缓冲器的刷新已经完成之后才完成。 每个节点B可以使用回程接口明确地提供确认,或者可以使用相应节点B之间的定时器或信令来隐含地确定。

    SYSTEM AND METHOD FOR REDUCING RESETS DURING HANDOVERS IN A SINGLE FREQUENCY DUAL CARRIER WIRELESS COMMUNICATION SYSTEM
    7.
    发明申请
    SYSTEM AND METHOD FOR REDUCING RESETS DURING HANDOVERS IN A SINGLE FREQUENCY DUAL CARRIER WIRELESS COMMUNICATION SYSTEM 有权
    在单频无线通信系统中减少手机中的复位的系统和方法

    公开(公告)号:US20120147869A1

    公开(公告)日:2012-06-14

    申请号:US13315244

    申请日:2011-12-08

    IPC分类号: H04W92/00

    摘要: A method, apparatus, and computer program product can provide for procedures at an access terminal for handling the delivery of packets from the MAC entity to the RLC entity, with an aim to reduce the occurrence of RLC resets that might otherwise be caused by out-of-order processing of control packets following a serving cell change. In one example, a MAC entity may insert an identifier into a packet delivered up to the RLC entity, to indicate whether the packet arrived from the current primary serving cell. In another example, a serving cell change procedure may include steps to flush a queue at the MAC entity and kill any running reordering release timers. In these ways potential problems caused by out-of-order control packets can be reduced or avoided.

    摘要翻译: 方法,装置和计算机程序产品可以在接入终端处提供用于处理从MAC实体到RLC实体的分组的传送的过程,目的是减少可能由外部引起的RLC复位的发生, 在服务小区改变之后的控制分组的顺序处理。 在一个示例中,MAC实体可以将标识符插入到RLC实体递送的分组中,以指示分组是否从当前主服务小区到达。 在另一个示例中,服务小区改变过程可以包括在MAC实体处刷新队列并杀死任何正在运行的重新排序释放定时器的步骤。 在这些方面,可以减少或避免由无序控制分组引起的潜在问题。

    Efficient signaling for closed-loop transmit diversity
    8.
    发明授权
    Efficient signaling for closed-loop transmit diversity 有权
    用于闭环发射分集的高效信令

    公开(公告)号:US08902873B2

    公开(公告)日:2014-12-02

    申请号:US12575936

    申请日:2009-10-08

    IPC分类号: H04B7/216 H04B7/06

    CPC分类号: H04B7/0619 H04B7/0636

    摘要: Techniques for encoding a phase adjustment for a feedback signal in a closed-loop transmit diversity system. In an aspect, codewords for the phase adjustments are chosen according to a variable-length prefix code. The prefix code aspect allows the codewords to be transmitted in sequence on the feedback channel without being separated by “commas” or demarcation symbols. The variable-length aspect provides a variety of coarse and fine phase adjustment quantization step sizes to accommodate multiple different channel scenarios. In an aspect, the length of the codewords may be further optimized according to the Huffman encoding algorithm.

    摘要翻译: 用于编码闭环发射分集系统中的反馈信号的相位调整的技术。 在一方面,根据可变长度前缀码来选择用于相位调整的码字。 前缀码方面允许在反馈信道上依次发送码字,而不用“逗号”或分界符号分隔。 可变长度方面提供了各种粗调和精细相位调整量化步长以适应多种不同的频道场景。 在一方面,可以根据霍夫曼编码算法进一步优化码字的长度。

    Apparatus and method for increasing reliability of serving cell change
    9.
    发明授权
    Apparatus and method for increasing reliability of serving cell change 有权
    提高服务细胞变化可靠性的装置和方法

    公开(公告)号:US08644260B2

    公开(公告)日:2014-02-04

    申请号:US12707000

    申请日:2010-02-17

    IPC分类号: H04W4/00

    摘要: Methods and apparatus are described herein to manage a serving cell change. A HS-SCCH monitored set is maintained to store entries for all pending serving cell change requests. The HS-SCCH for each entry is monitored for a timer period. Once a change request has been confirmed for one entry, monitoring for the other entries continues until expiration of the associated timers.

    摘要翻译: 这里描述了用于管理服务小区改变的方法和装置。 维护HS-SCCH监视集合以存储所有待处理的服务小区更改请求的条目。 监视每个条目的HS-SCCH定时器周期。 一旦对一个条目确认了更改请求,则对其他条目的监视将继续,直到关联的计时器到期。

    SYSTEM AND PROCESS FOR TRANSMISSION SEQUENCE NUMBER MANAGEMENT IN AN INTRA-NODE B UNSYNCHRONIZED SERVING CELL CHANGE
    10.
    发明申请
    SYSTEM AND PROCESS FOR TRANSMISSION SEQUENCE NUMBER MANAGEMENT IN AN INTRA-NODE B UNSYNCHRONIZED SERVING CELL CHANGE 审中-公开
    内部节点B中的传输序列号管理的系统和过程不间断服务小区更改

    公开(公告)号:US20110317642A1

    公开(公告)日:2011-12-29

    申请号:US13167199

    申请日:2011-06-23

    IPC分类号: H04W72/04

    摘要: Various aspects of the disclosure provide an intra-Node B unsynchronized serving cell change enabling the typical loss of packets resulting from such a procedure to be reduced or eliminated. In one example, when a UE ceases listening to a downlink channel from a first cell provided by a Node B and starts to configure its receiver to listen to a downlink channel from a second cell provided by the Node B, a continued incrementing of a sequence number may be stalled in the transmission of packets to the UE. That is, the TSN space may be stalled, such that HARQ retransmissions recur beyond the preconfigured maximum number of retransmissions, until the UE indicates that the serving cell change is complete. In another example, the transmission of packets to the UE from the first cell may be halted until the UE indicates that the serving cell change is complete.

    摘要翻译: 本公开的各个方面提供节点间B不同步的服务小区改变,使得能够减少或消除由这样的过程导致的分组的典型丢失。 在一个示例中,当UE停止从由节点B提供的第一小区监听下行链路信道时,开始配置其接收机以从由节点B提供的第二小区监听下行链路信道,继续递增序列 在向UE发送分组时可能停止了号码。 也就是说,TSN空间可能被停止,使得HARQ重传超出预配置的最大重传次数,直到UE指示服务小区改变完成。 在另一示例中,可以停止从第一小区向UE发送分组,直到UE指示服务小区改变完成。