Method for clear channel assessment optimization in a wireless local area network
    1.
    发明授权
    Method for clear channel assessment optimization in a wireless local area network 失效
    无线局域网中通道评估优化的方法

    公开(公告)号:US07620063B2

    公开(公告)日:2009-11-17

    申请号:US12209692

    申请日:2008-09-12

    IPC分类号: H04L12/413 H04W4/00

    摘要: A method and apparatus are directed toward optimizing clear channel assessment (CCA) parameters in a wireless local area network having an access point (AP) and at least one station. An upper bound and a lower bound for an energy detect threshold (EDT) parameter are determined. A value of the EDT parameter is calculated and is bound by the upper bound and the lower bound. The EDT parameter is updated. The method can be performed at each station or at the AP, with the updated CCA parameters being signaled to each station associated with the AP.

    摘要翻译: 方法和装置旨在在具有接入点(AP)和至少一个站的无线局域网中优化清除信道评估(CCA)参数。 确定能量检测阈值(EDT)参数的上限和下限。 计算EDT参数的值并由上限和下限约束。 EDT参数已更新。 该方法可以在每个站点或AP处执行,更新的CCA参数被发送到与AP相关联的每个站点。

    Integrated circuit for optimizing access point channel selection
    4.
    发明授权
    Integrated circuit for optimizing access point channel selection 失效
    用于优化接入点信道选择的集成电路

    公开(公告)号:US07715848B2

    公开(公告)日:2010-05-11

    申请号:US12356882

    申请日:2009-01-21

    IPC分类号: H04Q7/20

    CPC分类号: H04W72/02 H04W84/12 H04W88/08

    摘要: A wireless communication method and system for optimizing channel selection for an AP. The channel selection optimization process includes four sub-processes: (1) a measurement process; (2) a candidate channel determining process; (3) a channel selection process; and (4) a channel update process. Candidate channels used for supporting communication performed by the AP are determined. The candidate channels are chosen from an allowable channel set (ACS) if a detected interference of each candidate channel is less than an established maximum allowed interference.

    摘要翻译: 一种用于优化AP的信道选择的无线通信方法和系统。 频道选择优化过程包括四个子过程:(1)测量过程; (2)候选信道确定处理; (3)频道选择过程; 和(4)频道更新过程。 用于支持由AP执行的通信的候选信道被确定。 如果每个候选信道的检测到的干扰小于建立的最大允许干扰,则候选信道从可允许信道集(ACS)中选择。

    Method and apparatus for selecting enhanced dedicated channel transport format combination in CELL—FACH state and idle mode
    5.
    发明授权
    Method and apparatus for selecting enhanced dedicated channel transport format combination in CELL—FACH state and idle mode 有权
    用于在CELL-FACH状态和空闲模式下选择增强型专用信道传输格式组合的方法和装置

    公开(公告)号:US08107991B2

    公开(公告)日:2012-01-31

    申请号:US12408128

    申请日:2009-03-20

    IPC分类号: H04W52/04 H04B7/00 H04J1/16

    摘要: A method and apparatus for selecting an enhanced dedicated channel (E-DCH) transport format combination (E-TFC) in Cell_FACH state and idle mode are disclosed. A wireless transmit/receive unit (WTRU) transmits a random access channel (RACH) preamble and receives an index to an E-DCH resource in response to the RACH preamble. The WTRU may estimate a power headroom based on the maximum WTRU transmit power, power offset value, and the last successfully transmitted RACH preamble transmit power. The WTRU restricts an E-TFC based on the estimated power headroom, and selects an E-TFC based on a set of supported E-TFCs. The WTRU then generates, and transmits, a protocol data unit (PDU) based on the selected E-TFC.

    摘要翻译: 公开了一种用于在Cell_FACH状态和空闲模式中选择增强型专用信道(E-DCH)传输格式组合(E-TFC)的方法和装置。 无线发射/接收单元(WTRU)发送随机接入信道(RACH)前同步码,并响应于RACH前导码向E-DCH资源接收索引。 WTRU可以基于最大WTRU传输功率,功率偏移值和最后成功发送的RACH前导码发送功率来估计功率余量。 WTRU基于估计的功率余量来限制E-TFC,并且基于一组支持的E-TFC选择E-TFC。 然后,WTRU基于所选择的E-TFC生成和发送协议数据单元(PDU)。

    Method and apparatus for transmitting and receiving a packet via high speed downlink packet access
    6.
    发明授权
    Method and apparatus for transmitting and receiving a packet via high speed downlink packet access 有权
    用于经由高速下行链路分组接入发送和接收分组的方法和装置

    公开(公告)号:US07961657B2

    公开(公告)日:2011-06-14

    申请号:US11955090

    申请日:2007-12-12

    IPC分类号: H04B7/00

    摘要: A method and apparatus for transmitting and receiving a packet via high speed downlink packet access (HSDPA) are disclosed. At least one HSDPA medium access control (MAC-hs) service data unit (SDU) is segmented into a plurality of segments. MAC-hs protocol data units (PDUs) are generated from the segments wherein each MAC-hs PDU includes at least one segment. Each MAC-hs PDU may include one segment from a single MAC-hs SDU. The size of the segments may match to the size of the MAC-hs PDUs minus the size of the header of the MAC-hs PDU. The sizes of the segments may be determined based on the number of segments to which the MAC-hs SDU is segmented. Alternatively, each MAC-hs PDU may include a combination of segments from a plurality of MAC-hs SDUs or a combination of at least one segment from one MAC-hs SDU and at least one entire MAC-hs SDU.

    摘要翻译: 公开了一种通过高速下行链路分组接入(HSDPA)发送和接收分组的方法和装置。 至少一个HSDPA介质访问控制(MAC-hs)服务数据单元(SDU)被分割成多个段。 从其中每个MAC-hs PDU包括至少一个段的段生成MAC-hs协议数据单元(PDU)。 每个MAC-hs PDU可以包括来自单个MAC-hs SDU的一个段。 段的大小可以匹配MAC-hs PDU的大小减去MAC-hs PDU的报头的大小。 可以基于MAC-hs SDU被分段的段的数量来确定段的大小。 或者,每个MAC-hs PDU可以包括来自多个MAC-hs SDU的段的组合或来自一个MAC-hs SDU和至少一个整个MAC-hs SDU的至少一个段的组合。

    METHOD AND APPARATUS FOR MANAGING A COLLISION IN COMMON E-DCH TRANSMISSIONS
    7.
    发明申请
    METHOD AND APPARATUS FOR MANAGING A COLLISION IN COMMON E-DCH TRANSMISSIONS 审中-公开
    用于管理通用电子传输中的冲突的方法和装置

    公开(公告)号:US20090086698A1

    公开(公告)日:2009-04-02

    申请号:US12238053

    申请日:2008-09-25

    IPC分类号: H04W28/00

    CPC分类号: H04W74/0866 H04W74/085

    摘要: A method and apparatus for managing a collision in random access channel (RACH) access transmissions are disclosed. A wireless transmit/receive unit (WTRU) transmits WTRU-dependent information to confirm that a detected acquisition indicator (AI) is intended to the WTRU. The WTRU-dependent information may be transmitted separately after detecting the AI, may be transmitted along with a RACH preamble, or may be sent in an E-RACH message. The WTRU-dependent information may be a random number, a sequence or scrambling code randomly selected from a pre-determined set of sequences or scrambling codes. Alternatively, the WTRU-dependent information may be a pre-configured identifier, or information derived from the pre-configured identifier. Alternatively, after detecting an AI, the WTRU may randomly select an enhanced dedicated channel (E-DCH) resource from a set of E-DCH resources associated with an RACH resource used for transmission of the RACH preamble and transmit an E-RACH message using the selected E-DCH resource.

    摘要翻译: 公开了一种用于管理随机接入信道(RACH)接入传输中的冲突的方法和装置。 无线发射/接收单元(WTRU)发送WTRU相关信息以确认检测到的获取指示符(AI)是针对WTRU。 可以在检测到AI之后单独发送WTRU依赖信息,可以与RACH前导码一起发送,或者可以在E-RACH消息中发送。 WTRU依赖信息可以是从预定序列或扰码集合中随机选择的随机数,序列或扰码。 或者,WTRU相关信息可以是预配置的标识符,或者是从预先配置的标识符导出的信息。 或者,在检测到AI之后,WTRU可以从与用于发送RACH前导码的RACH资源相关联的一组E-DCH资源中随机选择增强型专用信道(E-DCH)资源,并使用 所选择的E-DCH资源。

    Method and apparatus for performing discontinuous reception and downlink inter-frequency and inter-radio access technology measurements in cell—fach state
    10.
    发明授权
    Method and apparatus for performing discontinuous reception and downlink inter-frequency and inter-radio access technology measurements in cell—fach state 有权
    用于在小区状态下执行不连续接收和下行链路频率间和无线电接入技术测量的方法和装置

    公开(公告)号:US08400934B2

    公开(公告)日:2013-03-19

    申请号:US12363278

    申请日:2009-01-30

    IPC分类号: H04J3/14

    摘要: A method and apparatus of performing discontinuous reception (DRX) and downlink inter-frequency and inter-radio access technology (RAT) measurements in CELL_FACH state are disclosed. While in DRX mode, a wireless transmit/receive unit (WTRU) may perform inter-frequency and inter-RAT measurements in a measurement occasion that fall into a DRX period. The WTRU may perform the measurements while T321 timer is running. The WTRU may take the measurements on first predetermined number of frame in which a DRX frame would coincide after a last reception frame if DRX operation was ongoing. The WTRU may periodically wake up for downlink reception in CELL_FACH state in accordance with a common DRX pattern that is common to all WTRUs in a cell or may wake up from DRX upon reception of the order and receiving a common traffic.

    摘要翻译: 公开了一种在CELL_FACH状态下执行不连续接收(DRX)和下行链路频率间和无线电接入技术(RAT)测量的方法和装置。 在DRX模式下,无线发射/接收单元(WTRU)可以在落入DRX周期的测量场合中执行频间和RAT间测量。 当T321定时器运行时,WTRU可以执行测量。 如果DRX操作正在进行,则WTRU可以在第一预定数量的帧上进行测量,其中DRX帧将在最后的接收帧之后重合。 WTRU可以根据在小区中所有WTRU共同的公共DRX模式来周期性地在CELL_FACH状态中唤醒下行链路接收,或者可以在接收到该命令并接收公共业务时从DRX唤醒。