METHOD AND APPARATUS FOR SENDING FEEDBACK FOR A DOWNLINK SHARED SERVICE TRANSMITTED TO A PLURALITY OF WIRELESS TRANSMIT/RECEIVE UNITS
    1.
    发明申请
    METHOD AND APPARATUS FOR SENDING FEEDBACK FOR A DOWNLINK SHARED SERVICE TRANSMITTED TO A PLURALITY OF WIRELESS TRANSMIT/RECEIVE UNITS 有权
    用于发送多个无线传输/接收单元的下行链路共享服务的反馈的方法和装置

    公开(公告)号:US20080084844A1

    公开(公告)日:2008-04-10

    申请号:US11869923

    申请日:2007-10-10

    IPC分类号: H04Q7/00

    摘要: A wireless transmit/receive units (WTRUs) receives a downlink transmission from a Node-B and decodes the downlink transmission. If the decoding is not successful, the WTRU sends a pre-defined burst signifying a negative acknowledgement (NACK) to the Node-B via a contention-based shared feedback channel. The pre-defined burst may be sent only once without requiring an acknowledgement. The Node-B calibrates a downlink transmit power so that the downlink transmission is transmitted to the WTRUs with a high likelihood. The Node-B may send a downlink transmission including multiple data streams processed using different modulation and coding schemes so that a WTRU having a high signal quality decodes all data streams while a WTRU having a low signal quality decodes less than all data streams. The Node-B sends a channel quality indicator (CQI) threshold so that each WTRU determines a data stream to report feedback based on the CQI threshold and a measured CQI.

    摘要翻译: 无线发射/接收单元(WTRU)从节点B接收下行链路传输并解码下行链路传输。 如果解码不成功,则WTRU通过基于竞争的共享反馈信道向节点B发送表示否定确认(NACK)的预定义突发。 预定义的突发可以仅发送一次而不需要确认。 节点B校准下行链路发射功率,使得下行链路传输以高可能性发送到WTRU。 节点B可以发送包括使用不同调制和编码方案处理的多个数据流的下行链路传输,使得具有高信号质量的WTRU解码所有数据流,而具有低信号质量的WTRU解码小于所有数据流。 节点B发送信道质量指示符(CQI)阈值,使得每个WTRU基于CQI阈值和测量的CQI来确定数据流以报告反馈。

    METHOD AND APPARATUS FOR SENDING FEEDBACK FOR A DOWNLINK SHARED SERVICE AND ESTIMATING A NUMBER OF WIRELESS TRANSMIT/RECEIVE UNITS
    3.
    发明申请
    METHOD AND APPARATUS FOR SENDING FEEDBACK FOR A DOWNLINK SHARED SERVICE AND ESTIMATING A NUMBER OF WIRELESS TRANSMIT/RECEIVE UNITS 有权
    用于发送下行链路共享服务的反馈的方法和装置以及估计无数发送/接收单元的数量

    公开(公告)号:US20100014434A1

    公开(公告)日:2010-01-21

    申请号:US12549726

    申请日:2009-08-28

    IPC分类号: H04L12/26

    摘要: A method and an apparatus for sending a signal on a contentious feedback channel for a downlink shared service and for estimating a number of wireless transmit/receive units (WTRUs) are disclosed. When a transmission criterion associated with a physical random access feedback channel (P-RAFCH) is satisfied, a physical resource is randomly selected among a plurality of physical resources assigned for the P-RAFCH and a pre-configured signal is sent using the selected physical resource. A Node-B receives the pre-configured signal from a plurality of WTRUs and calculates a number of the WTRUs based on a number of used physical resources. The transmission criterion is at least one of successful reception of a data packet on a downlink physical channel, successful reception of a data block on a data service, reception of a signaling command, occurrence of a measurement event, and failure to receive a transmission after a specified number of times.

    摘要翻译: 公开了一种用于在用于下行链路共享服务的有争议的反馈信道上发送信号并用于估计多个无线发射/接收单元(WTRU)的方法和装置。 当满足与物理随机访问反馈信道(P-RAFCH)相关联的传输准则时,在为P-RAFCH分配的多个物理资源中随机选择物理资源,并且使用所选择的物理 资源。 节点B从多个WTRU接收预配置的信号,并且基于所使用的物理资源的数量来计算WTRU的数量。 传输标准是下行物理信道上的数据分组的成功接收,数据业务上的数据块的成功接收,信令命令的接收,测量事件的发生以及在接收到测量事件之后未能接收传输中的至少一个 指定次数。

    User equipment with multiuser detection
    5.
    发明授权
    User equipment with multiuser detection 有权
    用户设备具有多用户检测功能

    公开(公告)号:US06795417B2

    公开(公告)日:2004-09-21

    申请号:US10090372

    申请日:2002-03-04

    IPC分类号: H04B7216

    摘要: A user equipment (UE) for a wireless time division duplex communication system which uses code division multiple access. The system communicates using communication bunts that have unique channelization codes and corresponding midamble codes where each midamble code is uniquely related to one or more channelization codes. The UE has a midamble detector which detects each midamble code in a received communication burst. A logic block determines the channelization codes related to each detected midamble and a channelization code detector detects channelization codes from among channelization codes determined by the logic block. A multiuser detection device recovers data from the received communication burst based on the detected channelization codes. Where all midamble codes are uniquely related to one channelization code, the channelization code detector is not needed.

    摘要翻译: 一种用于无线时分双工通信系统的用户设备(UE),其使用码分多址。 该系统使用具有唯一的信道化码和相应的中间码的通信脉冲串,其中每个中间码与唯一的一个或多个信道化码有关。 UE具有在接收到的通信突发中检测每个中间码的中置码检测器。 逻辑块确定与每个检测到的中间码相关的信道化码,并且信道化码检测器从由逻辑块确定的信道化码中检测信道化码。 多用户检测装置基于检测到的信道化码从接收到的通信突发中恢复数据。 在所有midamble码与一个信道化码唯一相关的情况下,不需要信道化码检测器。

    Channelization code determination by a user equipment
    6.
    发明授权
    Channelization code determination by a user equipment 失效
    由用户设备确定信道化码

    公开(公告)号:US07710928B2

    公开(公告)日:2010-05-04

    申请号:US11098276

    申请日:2005-04-04

    IPC分类号: H04B7/216

    摘要: A time division duplex/code division multiple access user equipment receives a plurality of communication bursts transmitted in a time slot. A midamble code included in a received communication burst is determined. A channelization code of a determined midamble's communication burst is determined. A mapping between channelization codes and midamble codes exists such that each midamble being mapped to at least one channelization code and at least one midamble code being mapped to at least two channelization codes which may be received in communication bursts simultaneously.

    摘要翻译: 时分双工/码分多址用户设备接收在时隙中发送的多个通信突发。 确定包含在所接收的通信突发中的中间码。 确定确定的中间码的通信突发的信道化码。 存在信道化码和中间码之间的映射,使得每个中间码被映射到至少一个信道化码,并且至少一个中间码被映射到可以在通信突发中同时接收的至少两个信道化码。

    Support of multiuser detection in the downlink
    10.
    发明授权
    Support of multiuser detection in the downlink 有权
    支持下行多用户检测

    公开(公告)号:US06934271B2

    公开(公告)日:2005-08-23

    申请号:US09775969

    申请日:2001-02-02

    摘要: A wireless time division duplex communication system using code division multiple access has a base station and user equipments. The system communicates using communication bursts. Each communication burst has a unique channelization code and a midamble code. Each midamble code is mapped to a set of at least one channelization code. For each communication burst to be transmitted in a time slot from the base station, the midamble code mapped to that burst's channelization code is determined. Communication bursts are generated and transmitted in the time slot. Each burst has the determined midamble code for its channelization code. The user equipment receives the bursts and determines each received midamble code. The user equipment determines the channelization codes of the transmitted communication bursts based on in part a result of the determining of each received midamble code.

    摘要翻译: 使用码分多址的无线时分双工通信系统具有基站和用户设备。 系统使用通信突发进行通信。 每个通信突发具有唯一的信道化码和中间码。 每个中间码代码被映射到一组至少一个信道化码。 对于要在基站的时隙中发送的每个通信突发,确定映射到该突发的信道化码的中间码。 在时隙中生成和发送通信突发。 每个突发具有确定的其信道化码的中间码码。 用户设备接收突发并确定每个接收到的中间码。 用户设备部分地基于确定每个接收到的中间码的结果来确定所发送的通信脉冲串的信道化码。