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    • 1. 发明授权
    • 협동 다중 포인트 전송을 위한 CSI 정의 및 피드백 모드
    • KR102345165B1
    • 2021-12-30
    • KR1020217010328
    • 2013-05-09
    • H04B17/00H04B1/7115
    • 방법및 장치는협동다중포인트(CoMP: Coordinated Multi-Point) 통신시스템에서사용자장치(UE: User Equipment)의채널상태정보(CSI: channel state information) 피드백을리포팅한다. 상기방법은상기사용자장치에대한하향링크전송이적어도 2개의 CSI 서브프레임서브세트로구성될때, CSI 레퍼런스리소스에속하는 CSI 서브프레임서브세트중 어느하나내에서간섭측정리소스를식별하는단계를포함한다. 상기방법은또한간섭측정을유도하기위하여상기식별된간섭측정리소스를이용하는단계를포함한다. 상기장치는상기사용자장치에대한하향링크전송이적어도 2개의 CSI 서브프레임서브세트로구성될때, CSI 레퍼런스리소스에속하는 CSI 서브프레임서브세트중 어느하나내에서간섭측정리소스를식별하는제어기를포함한다. 상기제어기는간섭측정을유도하기위하여상기식별된간섭측정리소스를이용한다.
    • 8. 发明公开
    • 무선 통신을 위한 자동 이득 제어를 사용한 심볼 스케일링
    • 符号扩展与自动增益控制无线通信
    • KR1020090096552A
    • 2009-09-10
    • KR1020097016341
    • 2008-01-04
    • 퀄컴 인코포레이티드
    • 시디조나단파텔케탄엔
    • H03G3/20H04B1/7115
    • H04L25/067H03G1/04H03G3/3089H04B1/7115H04B2201/70706H04L27/3809
    • Techniques for scaling symbols to account for large abrupt changes in received power at a user equipment (UE) are described. The UE performs AGC on received samples to obtain input samples. The UE processes (e.g., CDMA demodulates) the input samples to obtain first symbols. The UE determines the power of the input samples and derives a symbol gain based on (e.g., inversely related to) the power of the input samples. The UE scales the first symbols with the symbol gain to obtain detected data symbols having approximately constant amplitude, even with large abrupt changes in the power of the input samples. The UE estimates signal amplitude and noise variance based on the detected data symbols, computes LLRs for code bits of the detected data symbols based on the signal amplitude and noise variance, and decodes the LLRs to obtain decoded data.
    • 描述用于缩放符号以解决用户设备(UE)的接收功率的大的突然变化的技术。 UE对接收到的样本执行AGC以获得输入样本。 UE处理(例如,CDMA解调)输入样本以获得第一符号。 UE基于(例如,与输入样本的功率相反)来确定输入样本的功率并导出符号增益。 UE随着符号增益缩放第一个符号以获得具有近似恒定幅度的检测数据符号,即使输入样本的功率有大的突然变化。 UE基于检测到的数据符号估计信号幅度和噪声方差,基于信号幅度和噪声方差计算检测数据符号的码位的LLR,并解码LLR以获得解码数据。
    • 10. 发明公开
    • 통신 수신기 역확산 자원관리를 위한 방법 및 장치
    • 用于通信接收者的方法和装置,用于资源管理
    • KR1020090021178A
    • 2009-02-27
    • KR1020087031139
    • 2007-06-12
    • 텔레포나크티에볼라게트 엘엠 에릭슨(피유비엘)
    • 린도프,벤트
    • H04B1/7115
    • H04B1/712H04B1/7117H04B2201/709727
    • According to a method taught herein, a multi-branch communication receiver operates in a first mode wherein it despreads individual receiver branch signals with respect to all channelization codes of interest, if sufficient despreader resources are available for such operation. If the receiver estimates that sufficient despreader resources are not available, it operates in a second mode wherein it despreads one or more of the channelization codes from a branch combination signal formed from two or more of the receiver branch signals. The receiver may calculate optimal branch combining weights using an algorithm that maximizes a signal quality of the branch combination signal. A Generalized RAKE (GRAKE) receiver embodiment applies GRAKE detection to the individual receiver branch signals with respect to all channelization codes of interest if sufficient despreader resources are available and, if not, applies GRAKE detection to the branch combination signal for one or more such codes.
    • 根据这里教导的方法,多分支通信接收机以第一模式操作,其中如果足够的解扩器资源可用于这种操作,则它对相关于感兴趣的所有信道化码解扩个别接收器分支信号。 如果接收机估计足够的解扩器资源不可用,则其以第二模式工作,其中它从由两个或更多个接收器分支信号形成的分支组合信号中解扩一个或多个信道化码。 接收机可以使用最大化分支组合信号的信号质量的算法来计算最优分支组合权重。 如果足够的解扩器资源可用,则广义RAKE(GRAKE)接收器实施例对相关于所有感兴趣的信道化码的各个接收器分支信号应用GRAKE检测,并且如果不能,则对于一个或多个这样的代码对分支组合信号应用GRAKE检测 。