公开(公告)号：EP2184931A1

公开(公告)日：2010-05-12

申请号：EP08792516.0

申请日：2008-08-12

申请人： Nec Corporation

发明人： TAMURA, Koichi

IPC分类号： H04W4/00 ,  H04J11/00

CPC分类号： H04B1/59 ,  H04L1/0017 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0046 ,  H04L2001/0098

摘要： In order to cope with changes of communication environments of subcarriers and effectively use the subcarrier with channel quality information in a wireless communication system, a base station identifies a condition of a communication environment between the base station and a mobile station based upon channel quality information transmitted from the mobile station and maps transmission information on control of communication selectively to a specified subcarrier used for transmission based upon the identified condition of the communication environment.

摘要翻译： 为了应对子载波的通信环境的变化并且在无线通信系统中有效地使用具有信道质量信息的子载波，基站基于发送的信道质量信息来识别基站与移动台之间的通信环境的状况 基于所识别出的通信环境的条件，从移动台接收关于通信控制的发送信息，将发送信息有选择地映射到用于发送的规定副载波。

公开(公告)号：EP1883166A1

公开(公告)日：2008-01-30

申请号：EP06756571.3

申请日：2006-05-18

申请人： NEC Corporation

发明人： TAMURA, Koichi

IPC分类号： H04B1/707

CPC分类号： H04B1/7117

摘要： A CDMA mobile communication demodulator circuit has a path timing comparison part 4 operable to compare a difference between path timings of adjacent paths with a predetermined threshold value, a path level comparison part 5 operable to compare power correlation values of the path timings of the paths determined to be controlled with a maximum power correlation value between those path timings, and a path timing determination part 3 operable to control the finger assignment timings based on the comparison results. By adaptively controlling finger assignment timings in accordance with a power correlation peak value obtained by a delay profile calculation, good receiving characteristics can be maintained, and electric power consumption can be reduced.

摘要翻译： CDMA移动通信解调器电路具有路径定时比较部分4，其可操作以将相邻路径的路径定时之间的差与预定阈值进行比较;路径级别比较部分5，用于比较确定的路径的路径定时的功率相关值 被控制在这些路径定时之间的最大功率相关值，以及路径定时确定部3，其可操作以基于比较结果来控制手指分配定时。 通过根据通过延迟分布计算获得的功率相关峰值自适应地控制手指分配定时，可以保持良好的接收特性，并且可以降低电力消耗。

公开(公告)号：EP2538589A1

公开(公告)日：2012-12-26

申请号：EP11744576.7

申请日：2011-02-10

申请人： NEC Corporation ,  NTT DoCoMo, Inc.

发明人： SAKAI, Masahito ,  TAMURA, Koichi ,  NGUYEN, Quang ,  RAO, Chaitanya

IPC分类号： H04J11/00

CPC分类号： H04B17/318

摘要： Disclosed are a receiver and signal received power estimation method which achieve an accurate signal received power estimate. A receiver (10) which receives information sent in parallel using multiple subcarriers has a channel estimation unit (13) which calculates an estimated channel value for each of the subcarriers, and a signal received power estimation unit (16) which estimates the signal received power of information on the basis of the channel estimation value calculated by the channel estimation unit (13). The signal received power estimation unit (16), in the case of a narrow bandwidth wherein the number of subcarriers used in the parallel transmission is less than a prescribed value, processes the channel estimated value estimated by the channel estimation unit (13) by performing in-phase addition in the time direction, averaging in the frequency direction, and conjugate multiplication, in that order, and, in the case of a broad bandwidth wherein the number of subcarriers used in the parallel transmission is greater than or equal to the prescribed value, processes the channel estimated value estimated by the channel estimation unit (13) by performing averaging in the frequency direction, conjugate multiplication, and in-phase addition in the time direction, in that order.

摘要翻译： 公开了一种实现准确的信号接收功率估计的接收机和信号接收功率估计方法。 接收使用多个子载波并行发送的信息的接收机（10）具有对每个子载波进行估计的信道值的信道估计部（13），以及估计信号接收功率的信号接收功率估计部（16） 基于由信道估计单元（13）计算出的信道估计值的信息。 信号接收功率估计单元（16）在并行传输中使用的子载波的数量少于规定值的窄带宽的情况下，通过执行由信道估计单元（13）估计出的信道估计值 在时间方向上进行同相相加，在频率方向上进行平均，并且按顺序进行共轭乘法，并且在宽带宽的情况下，并行传输中使用的子载波的数量大于或等于规定的 值，通过在时间方向上以频率方向进行平均，共轭乘法和同相相加来处理由信道估计单元（13）估计的信道估计值。

公开(公告)号：EP1883166B1

公开(公告)日：2012-08-01

申请号：EP06756571.3

申请日：2006-05-18

申请人： NEC Corporation

发明人： TAMURA, Koichi

IPC分类号： H04B1/7117

CPC分类号： H04B1/7117

摘要： A CDMA mobile communication demodulator circuit has a path timing comparison part 4 operable to compare a difference between path timings of adjacent paths with a predetermined threshold value, a path level comparison part 5 operable to compare power correlation values of the path timings of the paths determined to be controlled with a maximum power correlation value between those path timings, and a path timing determination part 3 operable to control the finger assignment timings based on the comparison results. By adaptively controlling finger assignment timings in accordance with a power correlation peak value obtained by a delay profile calculation, good receiving characteristics can be maintained, and electric power consumption can be reduced.