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    • 2. 发明授权
    • Combined equalizer and spread spectrum interference canceller method and implementation for the downlink of CDMA systems
    • CDMA系统下行链路的组合均衡器和扩频干扰消除方法及实现
    • US09236902B2
    • 2016-01-12
    • US10219966
    • 2002-08-15
    • Aris Papasakellariou
    • Aris Papasakellariou
    • H04B1/7107H04B1/7115
    • H04B1/7107H04B1/71075H04B1/7115
    • The present invention describes a method and apparatus for implementing a mobile receiver (10) that combats multiple access interference (MAI) in a code division multiple access (CDMA) spread spectrum system. Such capability is required by mobile receivers to support high data rate applications such as the ones provided by HSDPA and 1xTREME. A receiver (10) combining equalization and interference cancellation (IC), according to the invention, avoids the shortcomings of either equalization or IC and provides superior performance relative to prior art methodologies. The approach proposed by this invention for the operation of the mobile receiver is to first perform equalization (12) of the received signal (r) and then use the resulting decisions to perform IC. Combining equalization and IC yields a complexity that is smaller to that obtained by implementing conventional IC with a Rake receiver for the same performance.
    • 本发明描述了一种实现在码分多址(CDMA)扩频系统中抵抗多址干扰(MAI)的移动接收机(10)的方法和装置。 移动接收机需要这种能力来支持诸如由HSDPA和1xTREME提供的高数据速率应用的高数据速率应用。 根据本发明的组合均衡和干扰消除(IC)的接收机(10)避免了均衡或IC的缺点,并且相对于现有技术的方法提供了优异的性能。 本发明提出的用于移动接收机操作的方法是首先执行接收信号(r)的均衡(12),然后使用所得到的决定来执行IC。 组合均衡和IC产生的复杂度小于通过使用具有相同性能的Rake接收机实现常规IC获得的复杂度。
    • 8. 发明申请
    • TRANSMISSION OF SOUNDING REFERENCE SIGNALS FROM A USER EQUIPMENT IN RESPONSE TO MULTIPLE REQUESTS
    • 用户设备响应多个请求的声音参考信号的传输
    • US20120281604A1
    • 2012-11-08
    • US13463233
    • 2012-05-03
    • Aris PAPASAKELLARIOUJoon-Young Cho
    • Aris PAPASAKELLARIOUJoon-Young Cho
    • H04W4/02
    • H04W72/042H04L5/0048H04L27/2611H04L27/2613
    • Methods and apparatus are provided for a User Equipment (UE) to transmit a Sounding Reference Signal (SRS). A first Downlink Control Information (DCI) format with an aperiodic SRS request field indicating aperiodic SRS transmission with first values for aperiodic SRS transmission parameters, is received. A second DCI format with an aperiodic SRS request field indicating aperiodic SRS transmission with second values for the aperiodic SRS transmission parameters, is received. The first values for the aperiodic SRS transmission parameters are compared with the second values for the aperiodic SRS transmission parameters. An aperiodic SRS is transmitted when the first values are identical to the second values. Transmission of the aperiodic SRS is suspended when the first values are not identical to the second values.
    • 为用户设备(UE)提供了发送探测参考信号(SRS)的方法和装置。 接收具有非周期SRS请求字段的第一下行链路控制信息(DCI)格式,其指示具有用于非周期SRS传输参数的第一值的非周期SRS传输。 接收具有指示用于非周期性SRS传输参数的第二值的非周期性SRS传输的非周期SRS请求字段的第二DCI格式。 将非周期SRS传输参数的第一个值与非周期SRS传输参数的第二个值进行比较。 当第一个值与第二个值相同时,发送非周期性SRS。 当第一个值与第二个值不相同时,非周期SRS的传输被暂停。