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11. 发明授权

US07123931B2 Smooth method for adjusting downlink transmitted power 有权
标题翻译：调整下行发射功率的平滑方法
公开(公告)号：US07123931B2
公开(公告)日：2006-10-17
申请号：US10385320
申请日：2003-03-10
申请人： Xiaohua Chen , Walid E. Nabhane , Alexandro Salvarani
发明人： Xiaohua Chen , Walid E. Nabhane , Alexandro Salvarani
IPC分类号： H04M11/10 , H04Q7/20
CPC分类号： H04W52/343 , H04W52/346 , H04W52/56
摘要： An algorithm calculates a correction value to be applied to a slot in an adjustment period for power correction. For each slot, the algorithm determines whether adding a correction value in a given slot would bring the actual accumulative adjustment value closer or farther from an accumulative adjustment target value. The accumulative adjustment target value has a linear relationship with the slot number and is calculated for each slot to ensure that any corrections are evenly distributed over the adjustment period for a smooth correction. In one embodiment, the algorithm also checks the total amount of adjustment applied to the slots over a sliding adjustment window to make sure that the total amount of adjustment applied to the slots in the adjustment window do not exceed a predetermined maximum threshold.
摘要翻译：一种算法在功率校正的调整周期中计算要应用于时隙的校正值。对于每个时隙，该算法确定是否在给定时隙中添加校正值将使实际累加调整值更接近或远离累积调整目标值。累积调整目标值与时隙号线性关系，并为每个时隙计算，以确保任何校正均匀分布在调整周期内进行平滑校正。在一个实施例中，算法还检查通过滑动调整窗口应用于时隙的总调整量，以确保施加到调整窗口中的时隙的总调整量不超过预定最大阈值。

12. 发明授权

US06590945B1 Method and apparatus for frequency offset compensation 有权
标题翻译：频偏补偿方法和装置
公开(公告)号：US06590945B1
公开(公告)日：2003-07-08
申请号：US09353009
申请日：1999-07-13
申请人： Nima Brardjanian , Yong J. Lee , Walid E. Nabhane , Mohsen Sarraf , Sheng-Jen Tsai
发明人： Nima Brardjanian , Yong J. Lee , Walid E. Nabhane , Mohsen Sarraf , Sheng-Jen Tsai
IPC分类号： H03D302
CPC分类号： H04L27/2332 , H04L2027/0046
摘要： A simplified method for frequency offset estimation in a TDMA cellular PCS environment using &pgr;/4-shifted DQPSK comprises the steps of multiplying a complex conjugate of a received complex-valued symbol and a succeeding symbol to produce a comparison vector having an angle equal to the phase angle between the received complex-valued symbol and the succeeding symbol, rotating the comparison vector so that the angle thereof is between 0° and 90°, and estimating the frequency offset by determining a constant deviation of the phase angle from an ideal phase angle value of 45° by calculating an average phase angle for a plurality of successive comparison vectors or correlating the rotated comparision vector against a bank of unit vectors to determine a maximum correlation.
摘要翻译：使用π/ 4移位DQPSK的TDMA蜂窝PCS环境中的频率偏移估计的简化方法包括以下步骤：将接收的复值符号和后续符号的复共轭相乘以产生具有等于接收的复值符号和后续符号之间的相位角，旋转比较矢量使其角度在0°和90°之间，并且通过确定相位角与理想相位角的恒定偏差来估计频率偏移通过计算多个连续比较矢量的平均相位角，或将旋转的比较矢量与单位向量组相关联以确定最大相关性，来确定45°的值。

13. 发明授权

US07181235B2 Hybrid method for adjusting downlink transmitted power 有权
标题翻译：用于调整下行链路传输功率的混合方法
公开(公告)号：US07181235B2
公开(公告)日：2007-02-20
申请号：US10385019
申请日：2003-03-10
申请人： Xiaohua Chen , Walid E. Nabhane , Alexandro Salvarani
发明人： Xiaohua Chen , Walid E. Nabhane , Alexandro Salvarani
IPC分类号： H04B1/00 , H04Q7/20
CPC分类号： H04W52/12 , H04W52/228 , H04W52/36
摘要： An algorithm calculates a correction value to be applied to a slot in an adjustment period for power correction. The adjustment period is divided into segments having a plurality of slots, and a target power value is determined for each segment. For each slot, the algorithm determines whether adding a correction value in a given slot would bring the actual accumulative adjustment value closer or farther from the target power value for the segment corresponding to the given slot. The correction value is added to consecutive slots in the segment. The algorithm also checks the total amount of adjustment applied to the slots over a sliding adjustment window to make sure that the total amount of adjustment applied to the slots in the window do not exceed a predetermined maximum threshold.
摘要翻译：一种算法在功率校正的调整周期中计算要应用于时隙的校正值。调整周期被划分为具有多个时隙的段，并且为每个段确定目标功率值。对于每个时隙，算法确定是否在给定时隙中添加校正值将使实际累加调整值更接近或远离对应于给定时隙的段的目标功率值。校正值被添加到段中的连续槽。该算法还检查通过滑动调整窗口应用于插槽的总调整量，以确保施加到窗口中的插槽的总调整量不超过预定的最大阈值。

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