Preamble miss detection in transmission of multi-slot packets
    2.
    发明申请
    Preamble miss detection in transmission of multi-slot packets 失效
    在多时隙分组传输中的前导码错误检测

    公开(公告)号:US20060109810A1

    公开(公告)日:2006-05-25

    申请号:US10997271

    申请日:2004-11-24

    IPC分类号: H04Q7/00

    CPC分类号: H04L1/1819

    摘要: A communication system (100) transmits data packets from a sender (120A) to a receiver (130A) using hybrid automatic repeat request processes. The sender redundantly encodes each packet, divides the packet into subpackets, and sends the subpackets to the receiver in a time-interlaced manner. When the receiver returns a positive acknowledgement of a subpacket using an acknowledgement channel, the sender terminates transmission of the subpackets. The sender interprets the signals on the acknowledgement channel using a metric resulting from correlation of the signals with positive and negative acknowledgement symbols. The sender interprets low correlation of the acknowledgement channel signal with both positive and negative acknowledgement symbols as a preamble miss, and terminates transmission of the subpackets. After termination, the packet may be rescheduled for transmission. Early termination of packet transmission after a preamble miss improves bandwidth utilization and decreases latency of the packet with the missed preamble.

    摘要翻译: 通信系统(100)使用混合自动重复请求过程将数据分组从发送器(120A)发送到接收机(130A)。 发送方对每个数据包进行冗余编码,将数据包划分为子数据包,并以时间间隔方式将子数据包发送给接收方。 当接收方使用确认信道返回子包的肯定确认时,发送方终止子数据包的传输。 发送者使用由信号与正和负确认符号的相关产生的度量来确认确认信道上的信号。 发送方解释确认信道信号与正和负确认符号的低相关性作为前导码缺失,并终止子分组的传输。 终止之后,可以重新安排分组以进行传输。 前导码丢失后的数据包传输的提前终止提高了带宽利用率并降低了丢失前导码的数据包的等待时间。

    APPARATUS AND METHOD FOR CONTROLLING REVERSE LINK INTERFERENCE AMONG ACCESS TERMINALS IN WIRELESS COMMUNICATIONS
    5.
    发明申请
    APPARATUS AND METHOD FOR CONTROLLING REVERSE LINK INTERFERENCE AMONG ACCESS TERMINALS IN WIRELESS COMMUNICATIONS 有权
    用于控制无线通信中接入终端的反向链路干扰的装置和方法

    公开(公告)号:US20080032734A1

    公开(公告)日:2008-02-07

    申请号:US11870278

    申请日:2007-10-10

    IPC分类号: H04Q7/20 H04B17/00

    摘要: In a wireless communication system, an apparatus and a method are provided for controlling reverse link interference among access terminals that are power controlled by a sector of a base station. In an embodiment, the maximum effective noise power spectral density is used as a parameter for controlling the level of reverse link loading, by setting a reverse activity bit (RAB) to signal the access terminals to reduce their data rates in order to minimize interference between the access terminals if the maximum effective noise power spectral density is above a predetermined threshold.

    摘要翻译: 在无线通信系统中,提供了一种用于控制由基站的扇区进行功率控制的接入终端之间的反向链路干扰的装置和方法。 在一个实施例中,最大有效噪声功率谱密度用作控制反向链路负载水平的参数,通过设置反向活动比特(RAB)来向接入终端发信号以减小它们的数据速率,以便最小化干扰 如果最大有效噪声功率谱密度高于预定阈值,则接入终端。