公开(公告)号：US06788662B2

公开(公告)日：2004-09-07

申请号：US09789830

申请日：2001-02-21

申请人： Faith M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

发明人： Faith M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

IPC分类号： H04B7216

CPC分类号： H04W52/322 ,  G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/7093 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2637 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/16 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/08 ,  H04W52/146 ,  H04W52/24 ,  H04W52/26 ,  H04W52/325 ,  H04W52/343 ,  H04W52/36 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60

摘要： A code-division-multiple-access (CDMA) system employing spread-spectrum modulation. The CDMA system has a base station (BS), and a plurality of subscriber units. The signals transmitted between the base station and subscriber unit use spread-spectrum modulation. The improvement method for adaptive reverse power control (APC) from a subscriber unit (SU) to a base station (BS), comprises the steps of sending from the subscriber unit, using spread-spectrum modulation, a SU-spreading code on a reverse channel. The base station despreads the SU-spreading code on the reverse channel as a despread signal, determines a first power level Pd which includes power of the despread signal plus noise and a second power level PN, which includes despread-noise power. The base station determines a first error signal e1, from the first power level Pd, the second power level PN, and a required signal-to-noise ratio SNRREQ for service type, and a second error signal e2, from a measure of total received power Prt at the base station, and an automatic gain control (AGC) set point Po. The base station forms a combined error signal from the first error signal e1, the second error signal e2, a first weight a1 and a second weight a2, and hard limits the combined error signal to form a single APC bit. The APC bit is transmitted to the subscriber unit. In response to the APC bit, the subscriber adjusts transmitter power to the base station.

摘要翻译： 采用扩频调制的码分多址（CDMA）系统。 CDMA系统具有基站（BS）和多个用户单元。 在基站和用户单元之间传输的信号使用扩频调制。 从用户单元（SU）到基站（BS）的自适应反向功率控制（APC）的改进方法包括以下步骤：使用扩展频谱调制从用户单元发送SU扩频码 渠道。 基站将反向信道上的SU扩频码解扩展为解扩信号，确定包括解扩信号加噪声功率的第一功率电平Pd和包括解扩噪声功率的第二功率电平PN。 基站从第一功率电平Pd，第二功率电平PN和用于服务类型的所需信噪比SNRREQ和第二误差信号e2根据接收到的总数量度量确定第一误差信号e1 基站的功率Prt和自动增益控制（AGC）设定点Po。 基站形成来自第一误差信号e1，第二误差信号e2，第一权重a1和第二权重a2的组合误差信号，并且硬限制组合误差信号以形成单个APC比特。 APC位被发送到用户单元。 响应于APC位，用户调整到基站的发射机功率。

公开(公告)号：US09564963B2

公开(公告)日：2017-02-07

申请号：US12340939

申请日：2008-12-22

申请人： Gary R. Lomp ,  Faith M. Ozluturk ,  John Kowalski

发明人： Gary R. Lomp ,  Faith M. Ozluturk ,  John Kowalski

IPC分类号： H04L27/00 ,  H04B7/26 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04J13/00 ,  H04J13/10 ,  H04L25/02 ,  H04L27/20 ,  H04L27/233 ,  H04W52/04 ,  H04W52/08 ,  H04W52/14 ,  H04W52/24 ,  H04W52/32 ,  H04W52/34 ,  H04W52/36 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  G06F13/374 ,  H03H17/02 ,  H04L5/14 ,  H04N1/00 ,  H04N1/333 ,  H04B1/7115 ,  H04B1/712 ,  H04J13/12 ,  H04L1/00 ,  H04W52/26 ,  H04W52/44 ,  H04W52/60 ,  H03H17/06 ,  H04B1/7077 ,  H04J13/16

CPC分类号： H04B7/2637 ,  G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/00 ,  H04J13/004 ,  H04J13/0048 ,  H04J13/0077 ,  H04J13/10 ,  H04J13/107 ,  H04J13/12 ,  H04J13/16 ,  H04J2013/0037 ,  H04L1/0001 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/146 ,  H04W52/24 ,  H04W52/241 ,  H04W52/245 ,  H04W52/247 ,  H04W52/26 ,  H04W52/262 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60 ,  Y02D10/14

摘要： A receiver receives signals and noise over a frequency spectrum of a desired received signal. The desired received signal is spread using code division multiple access. The received signals and noise are demodulated to produce a demodulated signal. The demodulated signal is despread using a code uncorrelated with a code associated with the desired received signal. A power level of the despread demodulated signal is measured as an estimate of the noise level of the frequency spectrum.

摘要翻译： 接收机通过所需接收信号的频谱接收信号和噪声。 期望的接收信号使用码分多址进行传播。 接收的信号和噪声被解调以产生解调信号。 使用与所需接收信号相关联的代码不相关的代码来解调解调信号。 解扩解调信号的功率电平被测量为频谱的噪声电平的估计。

公开(公告)号：US06940840B2

公开(公告)日：2005-09-06

申请号：US09791026

申请日：2001-02-21

申请人： Faith M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

发明人： Faith M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

IPC分类号： G06F13/374 ,  H03H17/02 ,  H03H17/06 ,  H04B1/707 ,  H04B7/005 ,  H04B7/26 ,  H04J13/00 ,  H04J13/04 ,  H04L1/00 ,  H04L5/14 ,  H04L25/02 ,  H04L27/00 ,  H04L27/20 ,  H04L27/233 ,  H04N1/333 ,  H04B7/216

CPC分类号： G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/2637 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/00 ,  H04J13/10 ,  H04J13/12 ,  H04J13/16 ,  H04J2013/0037 ,  H04L1/0001 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/146 ,  H04W52/24 ,  H04W52/241 ,  H04W52/245 ,  H04W52/247 ,  H04W52/26 ,  H04W52/262 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/362 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60

摘要： A code-division-multiple-access (CDMA) system employing spread-spectrum modulation. The CDMA system has a base station (BS), and a plurality of subscriber units. The signals transmitted between the base station and subscriber unit use spread-spectrum modulation. The improvement method for adaptive reverse power control (APC) from a subscriber unit (SU) to a base station (BS), comprises the steps of sending from the subscriber unit, using spread-spectrum modulation, a SU-spreading code on a reverse channel. The base station despreads the SU-spreading code on the reverse channel as a despread signal, determines a first power level Pd which includes power of the despread signal plus noise and a second power level PN, which includes despread-noise power. The base station determines a first error signal e1, from the first power level Pd, the second power level PN, and a required signal-to-noise ratio SNRREQ for service type, and a second error signal e2, from a measure of total received power Prt at the base station, and an automatic gain control (AGC) set point Po. The base station forms a combined error signal from the first error signal e1, the second error signal e2, a first weight a1, and a second weight a2, and hard limits the combined error signal to form a single APC bit. The APC bit is transmitted to the subscriber unit. In response to the APC bit, the subscriber adjusts transmitter power to the base station.

摘要翻译： 采用扩频调制的码分多址（CDMA）系统。 CDMA系统具有基站（BS）和多个用户单元。 在基站和用户单元之间传输的信号使用扩频调制。 从用户单元（SU）到基站（BS）的自适应反向功率控制（APC）的改进方法包括以下步骤：使用扩展频谱调制从用户单元发送SU扩频码 渠道。 基站将反向信道上的SU扩展码解扩展为解扩信号，确定包括解扩信号加噪声的功率的第一功率电平P＆lt; D＆gt;和第二功率电平P SUB N＆lt; N＆gt;，其包括解扩噪声功率。 基站从第一功率电平P SUB D＆gt;，第二功率电平P SUB> N＆gt;确定第一误差信号e 1， 对于服务类型的信噪比SNR＆lt; REQ＆lt;＆lt;＆lt;＆lt;＆lt;＆lt;＆lt;＆lt;＆lt;＆lt; 在基站处，以及自动增益控制（AGC）设定点P 。 基站形成来自第一误差信号e 1 1，第二误差信号e 2 2，第一重量α1，N 2的组合误差信号， 和第二重量2 <2>，并且硬限制组合误差信号以形成单个APC位。 APC位被发送到用户单元。 响应于APC位，用户调整到基站的发射机功率。

公开(公告)号：US07929498B2

公开(公告)日：2011-04-19

申请号：US09789389

申请日：2001-02-21

申请人： Fatih M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

发明人： Fatih M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

IPC分类号： H04B7/216

CPC分类号： H04W52/08 ,  G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/7093 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/2637 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/16 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/146 ,  H04W52/24 ,  H04W52/26 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/36 ,  H04W52/362 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60

摘要： A wireless code division multiple access (CDMA) communication system, including a base station (BS) and a subscriber unit (SU), uses adaptive forward power control (AFPC) and adaptive reverse power control (ARPC) to control the transmit power of forward and reverse link radio frequency (RF) channel signals, respectively. Automatic gain control (AGC) signals are produced to maintain the level of forward and reverse CDMA signals at a near constant level. The CDMA signals are despread to produce first and second despread signals. The first and second despread signals are used to produce a first error signal e1. A second error signal e2 is produced based on the AGC signals. Combined error signals are formed based on the first error signal e1 and the second error signal e2. The combined error signals are hard limited to form adaptive power control (APC) bits used to control the level of the forward and reverse link RF channel signals.

摘要翻译： 包括基站（BS）和用户单元（SU）的无线码分多址（CDMA）通信系统使用自适应正向功率控制（AFPC）和自适应反向功率控制（ARPC）来控制前向发射功率 和反向链路射频（RF）信道信号。 产生自动增益控制（AGC）信号，以保持正向和反向CDMA信号的电平处于接近恒定的水平。 CDMA信号被解扩展以产生第一和第二解扩信号。 第一和第二解扩信号用于产生第一误差信号e1。 基于AGC信号产生第二误差信号e2。 基于第一误差信号e1和第二误差信号e2形成组合误差信号。 组合的误差信号被硬限制以形成用于控制正向和反向链路RF信道信号的电平的自适应功率控制（APC）位。

公开(公告)号：US06707805B2

公开(公告)日：2004-03-16

申请号：US09742019

申请日：2000-12-21

申请人： Fatih M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

发明人： Fatih M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

IPC分类号： H04B7216

CPC分类号： H04B7/2637 ,  G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/00 ,  H04J13/004 ,  H04J13/0048 ,  H04J13/0077 ,  H04J13/10 ,  H04J13/107 ,  H04J13/12 ,  H04J13/16 ,  H04J2013/0037 ,  H04L1/0001 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/146 ,  H04W52/24 ,  H04W52/241 ,  H04W52/245 ,  H04W52/247 ,  H04W52/26 ,  H04W52/262 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60 ,  Y02D10/14

摘要： A code-division-multiple-access (CDMA) system employing spread-spectrum modulation. The CDMA system has a base station (BS), and a plurality of subscriber units (SUs). The signals transmitted between the BS and SU use spread-spectrum modulation. The improvement method for maintaining control of power from an SU to a BS comprises sending from the subscriber unit, using spread-spectrum modulation, a SU-spreading code, and detecting, at the BS, the SU-spreading code from the SU. In response to detecting the SU-spreading code at the BS, a BS-spreading code is sent to the SU, using spread-spectrum modulation. At the SU, if the BS-spreading code is detected, then transmit power of the SU is reduced. If the BS-spreading code is not detected at the SU, then transmit power of the SU is increased.

摘要翻译： 采用扩频调制的码分多址（CDMA）系统。 CDMA系统具有基站（BS）和多个用户单元（SU）。 在BS和SU之间传输的信号使用扩频调制。 用于维持从SU到BS的电力控制的改进方法包括使用扩频调制SU扩频码从用户单元发送，并且在BS处从SU检测SU扩展码。 响应于在BS处检测到SU扩展码，使用扩频调制将SU扩展码发送到SU。 在SU中，如果检测到BS扩展码，则SU的发射功率减小。 如果在SU处未检测到BS扩展码，则SU的发射功率增加。

公开(公告)号：US07123600B2

公开(公告)日：2006-10-17

申请号：US09795540

申请日：2001-02-28

申请人： Fatih M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

发明人： Fatih M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

IPC分类号： H04B7/216

CPC分类号： H03H17/0607 ,  H03H17/0226 ,  H03H17/0254 ,  H03H17/06 ,  H03H2218/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/7093 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/2637 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/00 ,  H04J13/004 ,  H04J13/0077 ,  H04L1/0059 ,  H04L1/1692 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2001/0094 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/08 ,  H04W52/146 ,  H04W52/24 ,  H04W52/26 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/36 ,  H04W52/362 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60

摘要： A code-division-multiple-access (CDMA) system employing spread-spectrum modulation. The CDMA system has a base station, and a plurality of subscriber units. The signals transmitted between the base station and subscriber unit use spread-spectrum modulation. The system and method transmits from the base station, a synchronization channel having a chip-sequence signal used by the plurality of subscriber units for synchronization. A first subscriber unit receives the synchronization channel, and determines timing from the synchronization channel. In order to initiate communications with the base station, the first subscriber unit transmits an access signal. The access signal has a plurality of power levels, which typically ramp up. The base station receives the access signal at a particular-power level. The base station then transmits to the first subscriber unit an acknowledgment signal. The first subscriber unit receives the acknowledgment signal, and transmits to the base station, a spread-spectrum signal.

公开(公告)号：US20110194571A1

公开(公告)日：2011-08-11

申请号：US13088958

申请日：2011-04-18

申请人： Fatih M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

发明人： Fatih M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

IPC分类号： H04J13/00

CPC分类号： H04B7/2637 ,  G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/00 ,  H04J13/004 ,  H04J13/0048 ,  H04J13/0077 ,  H04J13/10 ,  H04J13/107 ,  H04J13/12 ,  H04J13/16 ,  H04J2013/0037 ,  H04L1/0001 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/146 ,  H04W52/24 ,  H04W52/241 ,  H04W52/245 ,  H04W52/247 ,  H04W52/26 ,  H04W52/262 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60 ,  Y02D10/14

摘要： A code-division-multiple-access (CDMA) system employing spread-spectrum modulation. The CDMA system has a base station (BS), and a plurality of subscriber units. The signals transmitted between the base station and subscriber unit use spread-spectrum modulation. The improvement apparatus for adaptive forward power control (APC) from a base station (BS) to a subscriber unit (SU), includes sending from the base station, using spread-spectrum modulation, a BS-spreading code on a forward channel. The subscriber unit despreads the BS-spreading code on the forward channel as a despread signal, determines a first power level P.sub.d which includes power of the despread signal plus noise and a second power level P.sub.N, which includes despread-noise power. The subscriber unit determines a first error signal e.sub.1, from the first power level P.sub.d, the second power level P.sub.N, and a required signal-to-noise ratio SNR.sub.REQ for service type, and a second error signal e.sub.2, from a measure of total received power P.sub.r and an automatic gain control (AGC) set point P.sub.o. The subscriber unit forms a combined error signal from the first error signal e.sub.1, the second error signal e.sub.2, a first weight a.sub.1 and a second weight a.sub.2, and hard limits the combined error signal to form a single APC bit. The APC bit is transmitted to the base station. In response to the APC bit, the base station adjusts transmitter power to the subscriber unit.

摘要翻译： 采用扩频调制的码分多址（CDMA）系统。 CDMA系统具有基站（BS）和多个用户单元。 在基站和用户单元之间传输的信号使用扩频调制。 用于从基站（BS）到用户单元（SU）的自适应前向功率控制（APC）的改进装置包括使用扩频调制在前向信道上从基站发送BS扩展码。 用户单元将前向信道上的BS扩展码解扩展为解扩信号，确定包括解扩信号加噪声功率的第一功率电平P.sub.d和包括第二功率电平P 去噪功率。 订户单元从第一功率电平P.sub.d，第二功率电平P和N确定第一误差信号e 1，以及所需的信噪比SNR.sub.REQ，用于 服务类型和第二错误信号e 2，从总接收功率P.subr的测量和自动增益控制（AGC）设定点P.sub.o。 订户单元形成来自第一误差信号e 1，第二误差信号e 2，第一权重a 1和第二权重a 2的组合误差信号，以及硬限制 组合的误差信号形成单个APC位。 APC位被传送到基站。 响应于APC位，基站调整发射机功率给用户单元。

公开(公告)号：US07535874B2

公开(公告)日：2009-05-19

申请号：US10988410

申请日：2004-11-12

申请人： Fatih Ozluturk ,  Gary R. Lomp ,  John Kowalski

发明人： Fatih Ozluturk ,  Gary R. Lomp ,  John Kowalski

IPC分类号： H04B7/216

CPC分类号： H03H17/0607 ,  H03H17/0226 ,  H03H17/0254 ,  H03H17/06 ,  H03H2218/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/7093 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/2637 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/00 ,  H04J13/004 ,  H04J13/0077 ,  H04L1/0059 ,  H04L1/1692 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2001/0094 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/08 ,  H04W52/146 ,  H04W52/24 ,  H04W52/26 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/36 ,  H04W52/362 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60

摘要： A code division multiple access subscriber unit comprises an antenna configured to output a radio frequency signal, the radio frequency signal having a quadrature (Q) channel and an in-phase (I) channel. A circuit coupled to the antenna, the circuit being configured to generate power control bits which are carried by one of the I and Q channels and not the other one of the I and Q channels, the power control bits are spread coded and are adapted to control an output power of a base station. The radio frequency signal is a first radio frequency signal, the circuit is further configured to generate the power control bits based on a power level of a second radio frequency signal output by a base station and an interference level associated with the second radio frequency signal.

摘要翻译： 码分多址用户单元包括被配置为输出射频信号的天线，所述射频信号具有正交（Q）信道和同相（I）信道。 一种耦合到所述天线的电路，所述电路被配置为产生功率控制位，所述功率控制位由所述I和Q通道中的一个而不是所述I通道和Q通道中的另一个通道承载，所述功率控制位被扩展编码，并适于 控制基站的输出功率。 射频信号是第一射频信号，电路还被配置为基于由基站输出的第二射频信号的功率电平和与第二射频信号相关联的干扰电平来产生功率控制比特。

公开(公告)号：US07072380B2

公开(公告)日：2006-07-04

申请号：US09742579

申请日：2000-12-21

申请人： Fatih M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

发明人： Fatih M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

IPC分类号： H04B1/69

CPC分类号： G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/2637 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/00 ,  H04J13/10 ,  H04J13/107 ,  H04J13/12 ,  H04J13/16 ,  H04J2013/0037 ,  H04L1/0001 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/146 ,  H04W52/24 ,  H04W52/241 ,  H04W52/245 ,  H04W52/247 ,  H04W52/26 ,  H04W52/262 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60 ,  Y02D10/14

摘要： A code-division-multiple-access (CDMA) system employing spread-spectrum modulation. The CDMA system has a base station (BS), and a plurality of subscriber units (SUs). The signals transmitted between the BS and SU use spread-spectrum modulation. The apparatus for maintaining control of power from an SU to a BS, comprises sending from the SU, using spread-spectrum modulation, a SU-spreading code, and detecting at the base station, the SU-spreading code from the SU. In response to detecting the SU-spreading code at the BS, a BS-spreading code is sent to the SU, using spread-spectrum modulation. At the SU, if the BS-spreading code is detected, then transmit power of the SU is reduced. If the BS-spreading code is not detected at the SU, then transmit power of the SU is increased.

摘要翻译： 采用扩频调制的码分多址（CDMA）系统。 CDMA系统具有基站（BS）和多个用户单元（SU）。 在BS和SU之间传输的信号使用扩频调制。 用于维持从SU到BS的功率控制的装置包括使用扩展频谱调制SU扩展码，以及在基站处从SU发送SU扩展码。 响应于在BS处检测到SU扩展码，使用扩频调制将SU扩展码发送到SU。 在SU中，如果检测到BS扩展码，则SU的发射功率减小。 如果在SU处未检测到BS扩展码，则SU的发射功率增加。

公开(公告)号：US06816473B2

公开(公告)日：2004-11-09

申请号：US09791025

申请日：2001-02-21

申请人： Fatih M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

发明人： Fatih M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

IPC分类号： H04B7216

CPC分类号： G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2637 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/00 ,  H04J13/10 ,  H04J13/12 ,  H04J13/16 ,  H04J2013/0037 ,  H04L1/0001 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/146 ,  H04W52/24 ,  H04W52/241 ,  H04W52/245 ,  H04W52/247 ,  H04W52/26 ,  H04W52/262 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60

摘要： A code-division-multiple-access (CDMA) system employing spread-spectrum modulation. The CDMA system has a base station (BS), and a plurality of subscriber units. The signals transmitted between the base station and subscriber unit use spread-spectrum modulation. The improvement method for adaptive forward power control (APC) from a base station (BS) to a subscriber unit (SU), comprises the steps of sending from the base station, using spread-spectrum modulation, a BS-spreading code on a forward channel. The subscriber unit despreads the BS-spreading code on the forward channel as a despread signal, determines a first power level Pd which includes power of the despread signal plus noise and a second power level PN, which includes despread-noise power. The subscriber unit determines a first error signal e1, from the first power level Pd, the second power level PN, and a required signal-to-noise ratio SNRREQ for service type, and a second error signal e2, from a measure of total received power Pr and an automatic gain control (AGC) set point Po. The subscriber unit forms a combined error signal from the first error signal e1, the second error signal e2, a first weight a1 and a second weight a2, and hard limits the combined error signal to form a single APC bit. The APC bit is transmitted to the base station. In response to the APC bit, the base station adjusts transmitter power to the subscriber unit.

摘要翻译： 采用扩频调制的码分多址（CDMA）系统。 CDMA系统具有基站（BS）和多个用户单元。 在基站和用户单元之间传输的信号使用扩频调制。 从基站（BS）到用户单元（SU）的自适应前向功率控制（APC）的改进方法包括以下步骤：使用扩频调制从前向基站发送BS扩展码 渠道。 用户单元将前向信道上的BS扩展码解扩展为解扩信号，确定包括解扩信号加噪声功率的第一功率电平Pd和包括解扩噪声功率的第二功率电平PN。 订户单元从服务类型的第一功率电平Pd，第二功率电平PN和所需的信噪比SNRREQ以及来自所接收总数的测量的第二误差信号e2确定第一误差信号e1 功率Pr和自动增益控制（AGC）设定点Po。 订户单元形成来自第一误差信号e1，第二误差信号e2，第一权重a1和第二权重a2的组合误差信号，并且硬限制组合误差信号以形成单个APC比特。 APC位被传送到基站。 响应于APC位，基站调整发射机功率给用户单元。