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11.发明公开Spreading codes' generator for CDMA communication systems 失效SpreizcodesgeneratorfürCDMA Nachrichtentechnikssysteme
公开(公告)号：EP1603248A2
公开(公告)日：2005-12-07
申请号：EP05018803.6
申请日：1996-06-27
发明人： Lomp, Gary , Ozluturk, Fatih , Silverberg, Avi
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： The invention provides a method for transmitting data from a base station to a subscriber unit in a code division multiple access communication system, the method comprising:
producing a code, the code produced by binary addition of a first sequence produced by a first feedback shift register with a second sequence produced by a second feedback shift register;
combining the code with encoded message data, producing spread data; and transmitting the spread data as a quadrature modulated signal.摘要翻译： 本发明提供了一种在码分多址通信系统中从基站向用户单元发送数据的方法，该方法包括：产生代码，通过由第一反馈移位寄存器产生的第一序列的二进制加法产生的代码 具有由第二反馈移位寄存器产生的第二序列; 将代码与编码的消息数据组合，产生扩展数据; 并将扩展数据作为正交调制信号发送。
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公开(公告)号：EP0986187B1
公开(公告)日：2005-01-26
申请号：EP99122097.1
申请日：1996-06-27
发明人： Lomp, Gary , Ozluturk,Faith.M , Silverberg, Avi
IPC分类号： H04B1/707
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 multiple access, spread-spectrum communication system processes a plurality of information signals received by a Radio Carrier Station (RCS) over telecommunication lines for simultaneous transmission over a radio frequency (RF) channel as a code-division-multiplexed (CDM) signal to a group of Subscriber Units (SUs). The RCS receives a call request signal that corresponds to a telecommunication line information signal, and a user identification signal that identifies a user to receive the call. The RCS includes a plurality of Code Division Multiple Access (CDMA) modems, one of which provides a global pilot code signal. The modems provide message code signals synchronized to the global pilot signal. Each modem combines an information signal with a message code signal to provide a CDM processed signal. The RCS includes a system channel controller coupled to receive a remote call. An RF transmitter is connected to all of the modems to combine the CDM processed signals with the global pilot code signal to generate a CDM signal. The RF transmitter also modulates a carrier signal with the CDM signal and transmits the modulated carrier signal through an RF communication channel to the SUs. Each SU includes a CDMA modem which is also synchronized to the global pilot signal. The CDMA modem despreads the CDM signal and provides a despread information signal to the user. The system includes a closed loop power control system for maintaining a minimum system transmit power level for the RCS and the SUs, and system capacity management for maintaining a maximum number of active SUs for improved system performance.
摘要翻译： 多址，扩频通信系统通过电信线路处理由无线电载波台（RCS）接收的多个信息信号，以便通过射频（RF）信道作为码分复用（CDM）信号同时发送到 一组用户单位（SU）。 RCS接收对应于电信线信息信号的呼叫请求信号，以及标识用户接收呼叫的用户识别信号。 RCS包括多个码分多址（CDMA）调制解调器，其中之一提供全局导频码信号。 调制解调器提供与全局导频信号同步的消息代码信号。 每个调制解调器将信息信号与消息代码信号组合以提供CDM处理的信号。 RCS包括耦合以接收远程呼叫的系统信道控制器。 RF发射机连接到所有调制解调器以将CDM处理的信号与全局导频码信号组合以产生CDM信号。 RF发射机还利用CDM信号调制载波信号，并通过RF通信信道将调制载波信号发送到SU。 每个SU包括也与全局导频信号同步的CDMA调制解调器。 CDMA调制解调器解扩CDM信号，并向用户提供解扩信息信号。 该系统包括用于维持RCS和SU的最小系统发射功率级的闭环功率控制系统以及用于维持最大数量的主动SU以提高系统性能的系统容量管理。
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13.发明授权Method for broadcasting to subscriber units information about the availability of channels in a CDMA system 失效一种用于传输到的信息的移动站上在CDMA系统信道的可用性的方法。
公开(公告)号：EP1158702B1
公开(公告)日：2004-09-08
申请号：EP01113684.3
申请日：1996-06-27
发明人： Lomp, Gary , Ozluturk, Fatih , Silverberg, Avi
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 multiple access, spread-spectrum communication system processes a plurality of information signals received by a Radio Carrier Station (RCS) over telecommunication lines for simultaneous transmission over a radio frequency (RF) channel as a code-division-multiplexed (CDM) signal to a group of Subscriber Units (SUs). The RCS receives a call request signal that corresponds to a telecommunication line information signal, and a user identification signal that identifies a user to receive the call. The RCS includes a plurality of Code Division Multiple Access (CDMA) modems, one of which provides a global pilot code signal. The modems provide message code signals synchronized to the global pilot signal. Each modem combines an information signal with a message code signal to provide a CDM processed signal. The RCS includes a system channel controller coupled to receive a remote call. An RF transmitter is connected to all of the modems to combine the CDM processed signals with the global pilot code signal to generate a CDM signal. The RF transmitter also modulates a carrier signal with the CDM signal and transmits the modulated carrier signal through an RF communication channel to the SUs. Each SU includes a CDMA modem which is also synchronized to the global pilot signal. The CDMA modem despreads the CDM signal and provides a despread information signal to the user. The system includes a closed loop power control system for maintaining a minimum system transmit power level for the RCS and the SUs, and system capacity management for maintaining a maximum number of active SUs for improved system performance.
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14.发明公开Automatic power control system for a code division multiple access (CDMA) communications system 失效对于Kodemultiplexvielfachzugriffübertragungssystem自动发射功率控制系统
公开(公告)号：EP0996239A3
公开(公告)日：2003-03-05
申请号：EP99126232.0
申请日：1996-06-27
发明人： Lomp, Gary , Ozluturk, Fatih , Kowalski, John
IPC分类号： H04B7/005
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： The invention provides a spread spectrum communication system for maintaining an initial transmit power level of a communication station during periods of inactivity. The system comprises a first station (501) and a second station (502), the initial transmit power level of which is maintained, wherein the first station generates an automatic power control signal by comparing a measured noise power level in a communication channel and an estimated system transmit power level and the second station occasionally transmits a spread spectrum signal whilst in an inactive state and receives the automatic power control signal to adjust an initial transmit power level thereof.
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公开(公告)号：EP0991205A2
公开(公告)日：2000-04-05
申请号：EP99126233.8
申请日：1996-06-27
发明人： Lomp, Gary , Ozluturk, Fatih , Kowalski, John
IPC分类号： H04B7/005
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： The present invention provides a method for controlling system capacity in a spread spectrum code division multiple access communication system and a system suitable therefor. In said method, a flag is set which in a first state allows communication links to be established and in a second state, inhibits the establishment of such links. Subscriber units in the system which have already established a communication link monitor the quality of the link and when this approaches a set level transmit a switch signal, switching the state of said flag to prevent further links being established.
摘要翻译： 本发明提供了一种扩频码分多址通信系统中的系统容量控制方法及其适用的系统。 在所述方法中，设置标志，其在第一状态中允许建立通信链路并且在第二状态中禁止建立这样的链路。 已经建立通信链路的系统中的用户单元监视链路的质量，并且当接近设定电平时发送切换信号，切换所述标志的状态以防止进一步建立链路。
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公开(公告)号：EP1933470A3
公开(公告)日：2012-11-07
申请号：EP08102307.9
申请日：1996-06-27
发明人： Lomp, Gary , Ozluturk, Fatih , Silverberg, Avi
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 method for transferring voice and non-voice data in a wireless communication system, the method comprising receiving, during a time period, a voice data block associated with a first logical channel, when the voice data block is present in a wireless channel set during a time period, wherein the wireless channel set comprises at one wireless channel or a plurality of wireless channels; receiving a non-voice data block associated with a second logical channel, when the non-voice data block is present in the wireless channel set during the time period, wherein the wireless channel set is associated with a subscriber unit, and when the non-voice data block is missing in the wireless channel set, information is inserted into a non-voice block; and processing the information in the non-voice block.
摘要翻译： 多址，扩频通信系统通过电信线路处理由无线电载波台（RCS）接收的多个信息信号，以便通过射频（RF）信道作为码分复用（CDM）信号同时发送到 一组用户单位（SU）。 RCS接收对应于电信线信息信号的呼叫请求信号，以及标识用户接收呼叫的用户识别信号。 RCS包括多个码分多址（CDMA）调制解调器，其中之一提供全局导频码信号。 调制解调器提供与全局导频信号同步的消息代码信号。 每个调制解调器将信息信号与消息代码信号组合以提供CDM处理的信号。 RCS包括耦合以接收远程呼叫的系统信道控制器。 RF发射机连接到所有调制解调器以将CDM处理的信号与全局导频码信号组合以产生CDM信号。 RF发射机还利用CDM信号调制载波信号，并通过RF通信信道将调制载波信号发送到SU。 每个SU包括也与全局导频信号同步的CDMA调制解调器。 CDMA调制解调器解扩CDM信号，并向用户提供解扩信息信号。 该系统包括用于维持RCS和SU的最小系统发射功率级的闭环功率控制系统以及用于维持最大数量的主动SU以提高系统性能的系统容量管理。
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17.发明公开Automatic power control for a CDMA communications system 失效自动化发送系统系统Kodemultiplexvielfachzugriffübertragungssystem
公开(公告)号：EP2164184A1
公开(公告)日：2010-03-17
申请号：EP09015385.9
申请日：1996-06-27
发明人： Lomp, Gary , Ozluturk, Fatih , Kowalski, John
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 method for controlling transmission power levels of a code division multiple access, CDMA, subscriber unit, the method comprising receiving by the subscriber unit a power control bit on a downlink control channel, the power control bit indicating either an increase or decrease in transmission power level; transmitting a plurality of channels by the subscriber unit, the plurality of channels including a traffic channel and a reverse control channel; in response to the received power control bit, adjusting a transmission power level of both the traffic channel and the reverse control channel, wherein the transmission power level of the traffic channel and the reverse control channel are different; and transmitting the traffic channel and the reverse control channel at their respective adjusted transmit power levels.
摘要翻译： 一种用于控制码分多址，CDMA，用户单元的发射功率电平的方法，所述方法包括由用户单元接收下行链路控制信道上的功率控制比特，所述功率控制比特指示传输功率的增加或减小 水平; 由用户单元发送多个信道，所述多个信道包括业务信道和反向控制信道; 响应于接收到的功率控制位，调整业务信道和反向控制信道的发送功率电平，其中业务信道和反向控制信道的发送功率电平不同; 并以其各自的调整后的发射功率电平发送业务信道和反向控制信道。
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18.发明公开Code division multiple access communication system 失效Kodeverteilvielfachzugriffsnachrichtenübertragungssystem
公开(公告)号：EP1339174A3
公开(公告)日：2005-12-14
申请号：EP03011221.3
申请日：1998-03-10
CPC分类号： H04B1/707 , H04B1/7075 , H04B1/70753 , H04B1/70754 , H04B1/70755 , H04B1/70758 , H04B1/708 , H04B1/7085 , H04B1/7093 , H04B1/7103 , H04B1/7115 , H04B1/712 , H04B1/7183 , H04B7/2637 , H04B7/264 , H04B2201/70701 , H04B2201/70702 , H04B2201/70703 , H04B2201/7071 , H04J13/00 , H04J13/10 , H04J2013/0037 , H04L1/004 , H04L25/0212 , H04L27/206 , H04L27/2332 , H04L2027/003 , H04L2027/0053 , H04W24/08 , H04W28/22 , H04W36/06 , H04W52/0238 , H04W52/04 , H04W52/08 , H04W52/143 , H04W52/146 , H04W52/24 , H04W52/26 , H04W52/322 , H04W52/325 , H04W52/343 , H04W52/346 , H04W52/36 , H04W52/362 , H04W52/367 , H04W52/44 , H04W52/50 , H04W52/52 , H04W52/60 , H04W72/0466 , H04W88/021 , H04W88/08 , H04W88/181 , Y02D70/1222 , Y02D70/164 , Y02D70/21 , Y02D70/40 , Y02D70/449
摘要： The present invention claims a multiple access spread-spectrum communication system for dynamically changing a transmission rate of an information signal received from a remote processing unit (RPU) over a telecommunication line and transmitted to a subscriber through a first spread-spectrum message channel of a plurality of spread spectrum message channels, the system comprising
a) a base station, connected to the RPU, which identifies an information signal rate of the respective information signal and provides a modify signal responsive to the information signal rate; comprising:
a system channel controller which assigns the information signal and the modify signal to respectively different ones of the plurality of spread-spectrum message channels;
first information channel mode modification means connected to the system channel controller and responsive to the modify signal for switching the respective information signal from the first spread-spectrum message channel supporting a first information channel rate to one other pre-determined spread-spectrum message channel, the one other pre-determined spread-spectrum message channel having a different information channel rate supporting the identified information signal rate; and
b) a subscriber unit comprising:
a first despreading means for recovering the respective information signal and modify signal from the first spread spectrum message channel;
second information channel mode modification means responsive to the modify signal for reassigning the first despreading means to a second despreading means which supports the different information channel rate, the second despreading means corresponding to the second spread spectrum message channel.摘要翻译： 本发明要求一种多址扩频通信系统，用于通过电信线路动态地改变从远程处理单元（RPU）接收的信息信号的传输速率，并通过第一扩频消息信道 多个扩频消息信道，该系统包括a）连接到RPU的基站，其识别相应信息信号的信息信号速率并响应于信息信号速率提供修改信号; 包括：系统信道控制器，其将所述信息信号和修改信号分配给所述多个扩频消息信道中的不同的扩频消息信道; 第一信息信道模式修改装置，连接到系统信道控制器，并且响应于修改信号，用于将支持第一信息信道速率的第一扩频消息信道的相应信息信号切换到另一预定扩频消息信道， 所述另一个预定扩频消息信道具有支持所识别的信息信号速率的不同信息信道速率; 以及b）用户单元，包括：第一解扩装置，用于恢复相应的信息信号并修改来自第一扩频消息信道的信号; 第二信息信道模式修改装置，响应修改信号，将第一解扩装置重新分配给支持不同信息信道速率的第二解扩装置，第二解扩装置对应于第二扩频消息信道。
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公开(公告)号：EP0986186B1
公开(公告)日：2005-08-31
申请号：EP99122088.0
申请日：1996-06-27
发明人： Lomp, Gary , Ozluturk, Fatih , Silverberg, Avi
IPC分类号： H04B1/707
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 multiple access, spread-spectrum communication system processes a plurality of information signals received by a Radio Carrier Station (RCS) over telecommunication lines for simultaneous transmission over a radio frequency (RF) channel as a code-division-multiplexed (CDM) signal to a group of Subscriber Units (SUs). The RCS receives a call request signal that corresponds to a telecommunication line information signal, and a user identification signal that identifies a user to receive the call. The RCS includes a plurality of Code Division Multiple Access (CDMA) modems, one of which provides a global pilot code signal. The modems provide message code signals synchronized to the global pilot signal. Each modem combines an information signal with a message code signal to provide a CDM processed signal. The RCS includes a system channel controller coupled to receive a remote call. An RF transmitter is connected to all of the modems to combine the CDM processed signals with the global pilot code signal to generate a CDM signal. The RF transmitter also modulates a carrier signal with the CDM signal and transmits the modulated carrier signal through an RF communication channel to the SUs. Each SU includes a CDMA modem which is also synchronized to the global pilot signal. The CDMA modem despreads the CDM signal and provides a despread information signal to the user. The system includes a closed loop power control system for maintaining a minimum system transmit power level for the RCS and the SUs, and system capacity management for maintaining a maximum number of active SUs for improved system performance.
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公开(公告)号：EP1158702A2
公开(公告)日：2001-11-28
申请号：EP01113684.3
申请日：1996-06-27
发明人： Lomp, Gary , Ozluturk, Fatih , Silverberg, Avi
IPC分类号： H04B7/26
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 CDMA modem includes a modem transmitter having: a code generator which provides an associated pilot code signal and which generates a plurality of message code signals; a spreading circuit which produces a spread-spectrum message signal by combining each of the information signals with a respective one of the message code signals; and a global pilot code generator that provides a global pilot code signal to which the message code signals are synchronized. The CDMA modem also includes a modem receiver having an associated pilot code generator and a group of associated pilot code correlators for correlating code-phase delayed versions of the associated pilot signal with a receive CDM signal to produce a despread associated pilot signal. The code phase of the associated pilot signal is changed responsive to an acquisition signal value until a pilot signal is received. The associated pilot code tracking logic adjusts the associated pilot code signal in phase responsive to the acquisition signal so that the signal power level of the despread associated pilot code signal is maximized. Finally, the CDMA modem receiver includes a group of message signal acquisition circuits, each including a plurality of receive message signal correlators which correlate respective local received message code signal to the CDM signal to produce a respective despread received message signal.
摘要翻译： 的一多址，扩频通信系统中处理由无线电载波站（RCS）在用于通过射频（RF）信道作为一个码分多路复用（CDM）信号，以同时发送通信线路接收到的信息信号的多元性 一组用户单元（SUS）。 该RCS接收呼叫请求信号没有对应于电信线路信息信号，和用户识别信号确实识别用户接收呼叫。 该RCS包括码分多址（CDMA）调制解调器，其中之一提供了一个全球导频码信号的多元性。 调制解调器提供同步到全局导频信号消息的代码信号。 信息信号的每个调制解调器结合了消息的代码信号，以提供一个CDM处理的信号。 该RCS包括耦合以接收远程呼叫的系统信道控制器。 RF发射器被连接到所有的调制解调器到CDM处理的信号与全球导频码信号相结合以产生CDM信号。 因此，该RF发射器调制与CDM信号中的载波信号，并通过向RF通信信道向的SU发送调制的载波信号。 每个SU包括CDMA调制解调器因此，所有被同步到全局导频信号。 CDMA调制解调器解扩CDM信号，并提供一个解扩信息信号给用户。 该系统包括用于保持用于RCS和SUS，和系统容量管理的最小系统发射功率电平以保持活性的SU的一个最大数目，以提高系统性能的闭环功率控制系统。
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