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    • 13. 发明申请
    • System and Methods for Distributed Medium Access Control and QOS Scheduling in Mobile Ad-Hoc Networks
    • 移动Ad Hoc网络中分布式媒体访问控制和QOS调度的系统和方法
    • US20100246549A1
    • 2010-09-30
    • US12732271
    • 2010-03-26
    • Qinqing ZhangLotfi BenmohamedBharat T. Doshi
    • Qinqing ZhangLotfi BenmohamedBharat T. Doshi
    • H04W4/00
    • H04W74/0816
    • A communication device and method are provided for communicating with a receiving device over a channel within a mobile ad-hoc network. The receiving device includes a clear-to-send (CTS) packet generating portion that can generate and a CTS packet based on a parameter of the channel and that can transmit the CTS packet over the channel. The communication device includes a transmitter portion, a receiver portion and a management portion. The transmitter portion can transmit information into the channel. The receiver portion can receive information from the channel. The management portion includes a request-to-send (RTS) packet generating portion, a CTS packet receiving portion, a threshold database, a comparator and an RES packet generating portion. The management portion is in communication with the transmitter portion and the receiver portion. The RTS packet generating portion can generate a RTS packet and can provide the RTS packet to the transmitter portion. The transmitter portion can transmit the RTS packet to the receiving device by way of the channel. The receiver portion can receive the CTS packet from the receiving device by way of the channel and can provide the CTS packet to the CTS packet receiving portion. The threshold database can store a threshold value for the parameter of the channel and can provide the threshold value to the comparator. The CTS packet receiving portion can provide channel parameter information, to the comparator, based on the CTS packet. The comparator can compare the threshold value and the channel parameter information and can generate an instruction signal based on the comparison. The RES packet generating portion can generate an RES packet based on the instruction signal and can provide the RES packet to the transmitter portion.
    • 提供通信设备和方法,用于通过移动自组织网络内的信道与接收设备进行通信。 接收设备包括可以根据信道的参数生成CTS分组并且可以通过该信道发送CTS分组的清除发送(CTS)分组生成部分。 通信设备包括发射机部分,接收机部分和管理部分。 发射机部分可以向信道发送信息。 接收机部分可以从信道接收信息。 管理部分包括请求发送(RTS)分组生成部分,CTS分组接收部分,阈值数据库,比较器和RES分组生成部分。 管理部分与发射机部分和接收机部分通信。 RTS分组产生部分可以生成RTS分组,并且可以向发射机部分提供RTS分组。 发射机部分可以通过信道将RTS分组发送到接收设备。 接收机部分可以通过信道从接收设备接收CTS分组,并且可以向CTS分组接收部分提供CTS分组。 阈值数据库可以存储通道参数的阈值,并且可以向比较器提供阈值。 CTS分组接收部分可以基于CTS分组向比较器提供信道参数信息。 比较器可以比较阈值和通道参数信息,并可以根据比较产生指令信号。 RES分组生成部分可以基于指令信号生成RES分组,并且可以向发送器部分提供RES分组。
    • 14. 发明授权
    • Outer loop power control in a communication system
    • 通信系统中的外环功率控制
    • US07792048B2
    • 2010-09-07
    • US10954556
    • 2004-09-30
    • Qi BiDongzhe CuiQinqing Zhang
    • Qi BiDongzhe CuiQinqing Zhang
    • H04L12/26
    • H04W52/12H04W52/16
    • Outer loop power control for a traffic channel includes using at least one output from another channel to determine an appropriate control threshold such as a signal-to-noise ratio when selected channel conditions exist. One example traffic channel condition comprises having insufficient data transmission to provide a direct measurement of packet error rate. Another example traffic channel condition used to determine when to use the other channel output is a transmission mode on the traffic channel. An example output used for setting the control threshold is a chip energy to noise ratio of a pilot channel associated with the traffic channel.
    • 用于业务信道的外环功率控制包括使用来自另一信道的至少一个输出来确定适当的控制阈值,例如当存在所选信道条件时的信噪比。 一个示例的业务信道状况包括不足的数据传输以提供分组错误率的直接测量。 用于确定何时使用其他信道输出的另一个业务信道条件是业务信道上的传输模式。 用于设置控制阈值的示例输出是与业务信道相关联的导频信道的码片能量与噪声比。
    • 16. 发明申请
    • Method of handoff in a wireless communication system
    • 无线通信系统中切换的方法
    • US20080070576A1
    • 2008-03-20
    • US11524174
    • 2006-09-20
    • Susan Wu SandersCarl Francis WeaverQinqing Zhang
    • Susan Wu SandersCarl Francis WeaverQinqing Zhang
    • H04Q7/20
    • H04W36/08H04W36/30
    • A method of handoff utilizing a combined signal quality measurement to trigger or initiate a handoff of a mobile station to a plurality of neighbor base stations, wherein the combined signal quality measurement corresponds to a summation of signal quality measurements associated with the plurality of neighbor base stations. The handoff is triggered when the combined signal quality measurement is greater than a handoff threshold. By using the combined signal quality measurement instead of a signal quality measurement of an individual neighbor base station, handoffs can be triggered earlier along a boundary shared by neighbor cells, thereby reducing interference associated with later triggered handoffs. When triggered, the mobile station is handed off to a plurality of neighbor base stations allowing the mobile station to establish simultaneous communication links with two or more neighbor base station. This increases the chance that at least one of the communication links or the combination thereof is a strong communication link, thereby improving the reliability and success rate of handoffs.
    • 一种利用组合信号质量测量来触发或发起移动台到多个相邻基站的切换的切换方法,其中组合信号质量测量对应于与多个相邻基站相关联的信号质量测量的总和 。 当组合信号质量测量值大于切换阈值时,触发切换。 通过使用组合的信号质量测量而不是各个相邻基站的信号质量测量,可以沿着相邻小区共享的边界更早地触发切换,从而减少与稍后触发的切换相关联的干扰。 当触发时,将移动台切换到允许移动台与两个或更多个相邻基站建立同时通信链路的多个相邻基站。 这增加了至少一个通信链路或其组合是强的通信链路的机会,从而提高了切换的可靠性和成功率。