公开(公告)号：ES2627200T3

公开(公告)日：2017-07-27

申请号：ES04713434

申请日：2004-02-20

Applicant: QUALCOMM INC

Inventor： LAROIA RAJIV ,  FAN JOHN ,  LI JUNYI

IPC: H04B7/04 ,  H04B7/005 ,  H04B17/24 ,  H04B17/30 ,  H04W16/24 ,  H04W52/24 ,  H04W52/32

Abstract: Un procedimiento de transmisión de tonos piloto en una celda de múltiples sectores (1104) que incluye al menos un primer sector (1108) y un segundo sector (1110), estando localizado el segundo sector adyacente a dicho primer sector, comprendiendo el procedimiento: la transmisión, usando un primer tono, en dicho primer sector durante un primer tiempo de símbolo, de una primera señal piloto que tiene una primera potencia de transmisión seleccionada previamente; y la transmisión, usando dicho primer tono, en dicho segundo sector durante un segundo tiempo de símbolo, que se solapa con dicho primer tiempo de símbolo, de una segunda señal piloto que tiene una segunda potencia de transmisión seleccionada previamente que es diferente de dicha primera potencia de transmisión seleccionada previamente.

公开(公告)号：WO2007075736A3

公开(公告)日：2008-05-29

申请号：PCT/US2006048513

申请日：2006-12-20

Applicant: QUALCOMM INC ,  RANGAN SUNDEEP ,  LAROIA RAJIV ,  DAS ARNAB ,  LI JUNYI ,  FAN JOHN

Inventor： RANGAN SUNDEEP ,  LAROIA RAJIV ,  DAS ARNAB ,  LI JUNYI ,  FAN JOHN

IPC: H04W24/10

CPC classification number: H04W24/10 ,  H04B17/24 ,  H04B17/336

Abstract: A wireless terminal measures the received power of a tone corresponding to an intention base station null output, measures the received power of pilot signals, and determines a signal to noise ratio of the received pilot signal. The wireless terminal calculates a downlink signal to noise ratio saturation level representative of the SNR of a received downlink signal that the wireless terminal would measure on a received signal transmitted by the base station at infinite power. The calculated downlink signal to noise ratio saturation level is a function of the determined interference power, the measured received pilot signal power, and the determined pilot signal SNR. A report is generated corresponding to one of a plurality of quantized levels, the selected quantized level being the closest representation to the calculated downlink signal to noise ratio saturation level. The generated report is communicated using a dedicated control channel segment in a predetermined uplink timing structure.

Abstract translation: 无线终端测量与意图基站空输出对应的音调的接收功率，测量导频信号的接收功率，并确定接收到的导频信号的信噪比。 无线终端计算表示无线终端将以无限大功率发送的接收信号对接收到的下行链路信号的SNR进行SNR测量的下行链路信噪比饱和度。 所计算的下行链路信噪比饱和电平是所确定的干扰功率，测量的接收导频信号功率和确定的导频信号SNR的函数。 产生对应于多个量化电平中的一个的报告，所选择的量化电平是与所计算的下行链路信噪比饱和电平最接近的表示。 使用专用控制信道段在预定的上行链路定时结构中传送所生成的报告。

公开(公告)号：EP1654820A4

公开(公告)日：2011-01-19

申请号：EP03818352

申请日：2003-08-13

Applicant: QUALCOMM INC

Inventor： LAROIA RAJIV ,  LI JUNYI ,  FAN JOHN ,  RANGAN SUNDEEP ,  HANDE PRASHANTH

IPC: H04J11/00 ,  H04B7/00 ,  H04B7/005 ,  H04L27/26 ,  H04L27/36 ,  H04W52/56

CPC classification number: H04W52/08 ,  H04L27/2608 ,  H04L27/362 ,  H04W52/56 ,  H04W52/60

Abstract: The present invention involves apparatus and methods to perform wireless terminal transmission power control. The invention uses novel and highly efficient methods to: convey power control information, specify power control level adjustments, recognize power control information, limit interference in the power control signaling, and recognize corrupted power control signaling, thus conserving wireless terminal energy and minimizing power control signaling and associated bandwidth. Base stations send analog power control command signals, with a continuous range of control levels, to wireless terminals for transmission power adjustments. Power control signals include two components which can be used to convey information, e.g., power control commands, signal quality, device identity information. For zero power adjustment, the control component signal is not transmitted. For a non-zero adjustment, power control signals are sent using control ranges and limits, known to the base station and wireless terminal, with the scaling adjusted or synchronized based upon feedback information.