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41. 发明授权

US06580723B1 Time slotted logical ring 有权
标题翻译：时隙逻辑环
公开(公告)号：US06580723B1
公开(公告)日：2003-06-17
申请号：US09184758
申请日：1998-11-02
申请人： John T. Chapman
发明人： John T. Chapman
IPC分类号： H04B7216
CPC分类号： H04L12/43 , H04L12/2801
摘要： A Time Slotted Logical Ring protocol manages the flow of traffic in a duplex media including a cable distribution network with a head end, a local node, and a group of subscribers. The subscriber includes a cable modem which produces an HDLC serial interface which then goes to the subscriber or gets converted to ethernet by a router and then to the subscriber. The Time Slot portion of TSLR protocol manages upstream and downstream access and uses time tick identification frames in the downstream direction to control upstream traffic. A multiple logical ring protocol in TSLR is used to allocate cable bandwidth between the multiple subscribers.
摘要翻译：时隙逻辑环协议管理双工媒体中的业务流，包括具有头端，本地节点和一组订户的电缆分发网络。用户包括电缆调制解调器，其产生HDLC串行接口，然后HDLC串行接口去路由器，然后通过路由器转换到以太网，然后到用户。 TSLR协议的时隙部分管理上游和下游接入，并使用下行方向的时间戳识别帧来控制上行流量。 TSLR中的多重逻辑环路协议用于在多个用户之间分配电缆带宽。

42. 发明授权

US06577616B1 Systems and methods for implementing large CDMA cell sizes 有权
标题翻译：用于实现大型CDMA小区大小的系统和方法
公开(公告)号：US06577616B1
公开(公告)日：2003-06-10
申请号：US09473712
申请日：1999-12-29
申请人： Shahid Rasul Chaudry , Muhammad Khaledul Islam , Hong Ren , Azeem Ahmad , Thomas Leonard Trevor Plestid , Neil McGowan , James Russell Weisert , Brian Douglas Troup , David Andrew Tetreau , David Allan Boettger
发明人： Shahid Rasul Chaudry , Muhammad Khaledul Islam , Hong Ren , Azeem Ahmad , Thomas Leonard Trevor Plestid , Neil McGowan , James Russell Weisert , Brian Douglas Troup , David Andrew Tetreau , David Allan Boettger
IPC分类号： H04B7216
CPC分类号： H04B1/7075 , H04B7/2628 , H04B2201/70702 , H04W24/00 , H04W74/00 , H04W76/10
摘要： Methods and apparatuses are provided for CDMA (code division multiple access) access availability to a large cell area, and for traffic channel establishment. A group of cell site modems are configured to look for access attempts generated in respective complete and/or sectorized circular or annular shaped areas centered at the center of the cell area, the areas collectively covering the cell area. To achieve this, each cell site modem has a local clock and the local clock within the first of the cell site modems is synchronized with a standard network time, and the local clock of each of the subsequent cell site modems is offset by a respective delay with respect to the standard network time which causes the cell site modem to search within its respective annular shaped area. A cell site modem is also made available as a traffic cell site modem and is operable to have its traffic acquisition search window centered at a location of an access attempt. Alternatively, a plurality of traffic cell site modems may be provided, each having dedicated circular or annular coverage areas within the cell. The traffic cell site modems also preferably have a local clock which may be synchronized, either to a standard network time, or to a respective delay which causes it to search in its respective area. Methods and for handing off between circular and annular shaped traffic coverage areas are also provided.
摘要翻译：为大容量区域的CDMA（码分多址）访问可用性和业务信道建立提供了方法和装置。一组小区站点调制解调器被配置为寻找在以小区区域的中心为中心的各个完整和/或分区的圆形或环形区域中产生的访问尝试，区域集中地覆盖小区区域。为了实现这一点，每个小区站点调制解调器具有本地时钟，并且第一小区站点调制解调器内的本地时钟与标准网络时间同步，并且后续小区站点调制解调器中的每一个的本地时钟被相应的延迟相对于导致小区现场调制解调器在其各自的环形区域内搜索的标准网络时间。小区站点调制解调器还可作为业务小区站点调制解调器使用，并且可操作以使其业务获取搜索窗口以访问尝试的位置为中心。或者，可以提供多个业务小区站点调制解调器，每个业务小区站点调制解调器在小区内具有专用的圆形或环形覆盖区域。业务小区站点调制解调器还优选地具有可以与标准网络时间同步的本地时钟，或者使得其在其相应区域中搜索的相应延迟。还提供了在圆形和环形交通覆盖区域之间切断的方法。

43. 发明授权

US06577608B1 Communication control device and method for CDMA communication system 有权
标题翻译： CDMA通信系统的通信控制装置及方法
公开(公告)号：US06577608B1
公开(公告)日：2003-06-10
申请号：US09375944
申请日：1999-08-17
申请人： Hi-Chan Moon , Jeong-Gu Lee , Jae-Min Ahn , Young Ky Kim
发明人： Hi-Chan Moon , Jeong-Gu Lee , Jae-Min Ahn , Young Ky Kim
IPC分类号： H04B7216
CPC分类号： H04B1/707 , H04W52/325
摘要： A device and method for communicating a common channel message in a CDMA communication system. The device comprises a base station transmitter and a common channel transmitter. The base station transmitter includes a specific channel transmitter for outputting a channel signal at a second transmission power level for a predetermined time duration and otherwise outputting the channel signal at a first transmission power level. The common channel transmitter transmits a common channel message at an assigned slot duration. A power supply voltage is provided to the receiver of the mobile station for the predetermined time duration and the assigned slot duration to enable the receiver. The power supply voltage to the receiver is otherwise disengaged from the power supply so as to allow the receiver to operate in a sleep mode.
摘要翻译：一种用于在CDMA通信系统中传送公共信道消息的装置和方法。该设备包括基站发射机和公共信道发射机。基站发射机包括特定信道发射机，用于以预定的持续时间输出第二发射功率电平的信道信号，否则以第一发射功率电平输出信道信号。公共信道发射机以分配的时隙持续时间发送公共信道消息。在预定的持续时间内为移动台的接收机提供电源电压，并且为分配的时隙持续时间提供接收机。接收器的电源电压否则与电源分离，以便允许接收器在睡眠模式下工作。

44. 发明授权

US06574209B1 Radio communication device having variable communication speed 有权
标题翻译：具有可变通信速度的无线通信装置
公开(公告)号：US06574209B1
公开(公告)日：2003-06-03
申请号：US09375247
申请日：1999-08-16
申请人： Akio Kosaka
发明人： Akio Kosaka
IPC分类号： H04B7216
CPC分类号： H03G3/3036 , H03G3/3047 , H04B1/036
摘要： Communication speed of a radio communication device such as a portable telephone is controlled according to temperature of a transmitting amplifier to avoid overheating of the device. The transmitting amplifier temperature is detected by a temperature detector installed in the device. When the transmitting amplifier temperature is lower than a first temperature, the communication speed is set at a high level to transmit both voice and image data. When the transmitting amplifier temperature exceeds the first temperature, the communication speed is automatically switched to a low level to avoid overheating of the device. Under the low speed communication, only the voice data are transmitted. When the transmitting amplifier temperature becomes below a second temperature that is lower than the first temperature, the communication speed is switched back to the high level to resume transmission of both voice and image data. Thus, the communication device is protected from overheating without interrupting communication.
摘要翻译：根据发射放大器的温度来控制诸如便携式电话的无线电通信设备的通信速度，以避免设备的过热。传输放大器温度由安装在设备中的温度检测器检测。当发送放大器温度低于第一温度时，通信速度被设置为高电平以传送语音和图像数据。当发射放大器温度超过第一温度时，通信速度自动切换到低电平，以避免器件过热。在低速通信下，只传输语音数据。当发射放大器温度低于低于第一温度的第二温度时，通信速度被切换回高电平以恢复语音和图像数据两者的传输。因此，防止通信设备过热而不中断通信。

45. 发明授权

US06574205B1 CDMA cellular system and method of detecting spreading code in CDMA cellular system 失效
标题翻译： CDMA蜂窝系统和CDMA蜂窝系统中扩展码的检测方法
公开(公告)号：US06574205B1
公开(公告)日：2003-06-03
申请号：US09301772
申请日：1999-04-29
申请人： Toshifumi Sato
发明人： Toshifumi Sato
IPC分类号： H04B7216
CPC分类号： H04B1/7077 , H04B1/7083 , H04B7/2628 , H04B2201/70702
摘要： A CDMA cellular system does not require accurate synchronization between all base stations and is capable of distinguishing the base stations from each other without the need for a complex process. When two element codes are multiplied with shifted timing to generate a spreading code, different codes that do not agree with each other when cyclically shifted are generated for the respective base stations. Spreading codes of the base stations are distinguished even when the base stations are not kept in synchronism with each other. In the CDMA cellular system which uses such spreading codes, when frame synchronization is achieved using a perch channel spread by a spreading code that is common to all the base stations, a signal transmitted from one of the base stations is de-spread on the basis of a first element code which is of the same timing (phase) with respect to a frame in all the base stations. Since the de-spread signal is a signal produced by shifting a second element code with timing (phase) which differs from base station to base station, a spreading code that is being used can be identified by a correlated value calculating unit.
摘要翻译： CDMA蜂窝系统不需要所有基站之间的精确同步，并且能够区分基站而不需要复杂的处理。当两个元素代码与移位的定时相乘以产生扩展码时，针对各个基站生成不循环移位的彼此不一致的不同的代码。即使基站不保持彼此同步，也能区分基站的扩展码。在使用这种扩展码的CDMA蜂窝系统中，当使用由所有基站共用的扩展码扩展的导频信道来实现帧同步时，从基站之一发射的信号基于第一元素码相对于所有基站中的帧具有相同的定时（相位）。由于解扩信号是通过用与基站到基站不同的定时（相位）移位第二单元代码产生的信号，所以正在使用的扩展码可以由相关值计算单元识别。

46. 发明授权

US06549542B1 Variable channel device for wideband CDMA system 失效
标题翻译：用于宽带CDMA系统的可变信道设备
公开(公告)号：US06549542B1
公开(公告)日：2003-04-15
申请号：US09421801
申请日：1999-10-20
申请人： Sung-Soo Dong , Se-Jin Kang
发明人： Sung-Soo Dong , Se-Jin Kang
IPC分类号： H04B7216
CPC分类号： H04B7/264
摘要： A traffic variable channel device for a W-CDMA system comprising a convolutional encoder for receiving traffic information bits; a symbol puncturer connected to the convolutional encoder; an inserter connected to the symbol puncturer; a multiplexer connected to the inserter and the symbol puncturer; a scramble code generator for receiving a scramble code seed; an AND gate connected to the scramble code generator, a scramble select signal and a forward/reverse select signal; and, a scramble code spreader connected to the multiplexer and the AND gate for generating a forward/reverse traffic channel signal.
摘要翻译：一种用于W-CDMA系统的业务可变信道设备，包括用于接收业务信息比特的卷积编码器; 连接到卷积编码器的符号穿孔器; 连接到符号穿刺器的插入器; 连接到插入器和符号穿孔器的多路复用器; 用于接收加扰码种子的扰码产生器; 连接到扰码产生器的与门，加扰选择信号和正向/反向选择信号; 以及连接到多路复用器和与门的扰码扩展器，用于产生正向/反向业务信道信号。

47. 发明授权

US06535499B1 Multi-mode communication device 失效
标题翻译：多模式通信设备
公开(公告)号：US06535499B1
公开(公告)日：2003-03-18
申请号：US09164678
申请日：1998-10-01
申请人： Kazuhiro Futamura , Hideki Watanabe
发明人： Kazuhiro Futamura , Hideki Watanabe
IPC分类号： H04B7216
CPC分类号： H04B1/707 , H04B1/406
摘要： A multi-mode communication device includes a receiving unit which receives a radio signal via a radio communication path, and processes the received radio signal, a frequency-component obtaining unit which obtains frequency components in all or part of a frequency range of the received radio signal, and a controlling unit which selects a multiplex-attachment scheme appropriate for the received radio signal from a plurality of applicable multiplex-attachment schemes by controlling said receiving unit, said controlling unit selecting a CDMA scheme as the multiplex-attachment scheme when the frequency components obtained by said frequency-component obtaining unit are substantially uniformly distributed.
摘要翻译：多模式通信设备包括：接收单元，其经由无线通信路径接收无线信号，并对接收到的无线信号进行处理;频率分量获取单元，其获得接收到的无线电的全部或部分频率范围内的频率分量信号和控制单元，其通过控制所述接收单元从多个可应用的多路复用附接方案中选择适合于所接收的无线电信号的多路复用附加方案，所述控制单元选择CDMA方案作为多路复用附着方案，当频率由所述频率分量获得单元获得的分量基本均匀分布。

48. 发明授权

US06529495B1 Method and apparatus for providing differencing multistage detection in the reverse link of a code division multiple access communication system 失效
标题翻译：用于在码分多址通信系统的反向链路中提供差分多级检测的方法和装置
公开(公告)号：US06529495B1
公开(公告)日：2003-03-04
申请号：US09317333
申请日：1999-05-24
申请人： Behnaam Aazhang , Joseph R. Cavallaro , Gang Xu
发明人： Behnaam Aazhang , Joseph R. Cavallaro , Gang Xu
IPC分类号： H04B7216
CPC分类号： H04B1/71052 , H04B1/71075
摘要： A multistage detector is disclosed that maximizes computation power while minimizing system delay. The differencing multistage detector receives signals from a plurality of users in a cell of a communications system and reduces the effect of multiple access interference to a signal from a desired user caused by interference from other users in the cell. The differencing multistage detector includes a plurality of stages, each stage including an interference canceller for removing intra-cell interference caused by the other users in the cell and producing an estimation output vector, wherein except for a first stage, the estimation output vector of a current stage is based on both a decision of the interference canceller of the current stage and the output from an interference canceller of a previous stage. The estimation output vector of a current stage is produced by combining the output from an interference canceller of a previous stage and the decision of the interference canceller of the current stage. Except for the first stage each interference canceller calculates an estimate of multi-user interference by computing a product of a cross-correlation of the received signals and a difference signal thereby reducing the number of multiplication operations required.
摘要翻译：公开了一种最大化计算能力同时最小化系统延迟的多级检测器。差分多级检测器从通信系统的小区中的多个用户接收信号，并且减少由来自小区中其他用户的干扰引起的来自期望用户的信号的多址接入干扰的影响。差分多级检测器包括多级，每级包括干扰消除器，用于消除由小区中的其他用户引起的小区内干扰，并产生估计输出向量，其中除了第一级以外，估计输出向量当前阶段基于当前阶段的干扰消除器的决定和来自前一级的干扰消除器的输出。通过组合来自前一级的干扰消除器的输出和当前级的干扰消除器的判定来产生当前级的估计输出向量。除了第一阶段之外，每个干扰消除器通过计算接收信号的互相关乘积和差分信号来计算多用户干扰的估计，从而减少所需的乘法运算次数。

49. 发明授权

US06526029B1 Search scheme for receivers in mobile communication systems 失效
标题翻译：移动通信系统中接收机的搜索方案
公开(公告)号：US06526029B1
公开(公告)日：2003-02-25
申请号：US09066510
申请日：1998-04-24
申请人： Lizhi Zhong
发明人： Lizhi Zhong
IPC分类号： H04B7216
CPC分类号： H04W56/005 , H04B1/70754 , H04B7/2643 , H04W74/08
摘要： A receiver scans through two different search windows to detect a received signal: a first search window and a second search window. The timing of the second search window is adjusted after every processing cycle to follow the detected signal, while the timing of the first search window remains fixed. If the timing of the detected signal remains relatively constant for a sufficient period of time, then the timing of both the first search window and the second search window are adjusted based on the timing of the most recently detected signal. In this way, the receiver can continue to detect the received signal, even when the timing of the received signal varies greatly over time, without necessarily changing the first search window.
摘要翻译：接收机通过两个不同的搜索窗口扫描以检测接收到的信号：第一搜索窗口和第二搜索窗口。在每个处理周期之后调整第二搜索窗口的定时以跟随检测到的信号，而第一搜索窗口的定时保持固定。如果检测信号的定时在足够的时间段内保持相对恒定，则基于最近检测到的信号的定时来调整第一搜索窗口和第二搜索窗口的定时。以这种方式，即使当接收信号的定时随时间变化很大时，接收机也可以继续检测接收到的信号，而不必改变第一搜索窗口。

50. 发明授权

US06512753B1 Device and method for spreading channels in mobile communication system 失效
标题翻译：用于在移动通信系统中传播信道的装置和方法
公开(公告)号：US06512753B1
公开(公告)日：2003-01-28
申请号：US09473766
申请日：1999-12-29
申请人： Jae-Yoel Kim , Jae-Min Ahn , Hoe-Won Kang , Seung-Joo Maeng
发明人： Jae-Yoel Kim , Jae-Min Ahn , Hoe-Won Kang , Seung-Joo Maeng
IPC分类号： H04B7216
CPC分类号： H04J13/102 , H04B7/264 , H04B2201/70703
摘要： Disclosed is a channel spreading device for a base station device in a CMDA communication system for spreading input symbols using a first quasi-orthogonal code having a first length or channel spreading the input symbols using a second quasi-orthogonal code having a second length which is a multiple of the first length. The device comprises a spreading code generator for generating the second quasi-orthogonal code; a channel spreader for providing a plurality of durations by dividing a duration of the second quasi-orthogonal code by said multiple of the length of the first quasi-orthogonal code, and spreading channel coded symbols with the quasi-orthogonal codes divided to have a length corresponding to the divided durations so as to spread the symbols identical in number to said multiple of the first quasi-orthogonal code duration at the duration of the second quasi-orthogonal; and a PN spreader for spreading the channel spread signal with a PN code.
摘要翻译：公开了一种用于CMDA通信系统中的基站装置的信道扩展装置，用于使用具有第一长度或信道的第一准正交码扩展输入符号，该第一准正交码具有使用第二长度的第二准正交码扩展输入符号，第二准正交码是第二长度，第一个长度的倍数。该装置包括用于产生第二准正交码的扩展码发生器; 通道扩展器，用于通过将所述第二准正交码的持续时间除以所述第一准正交码的长度的所述倍数来提供多个持续时间，以及扩展信道编码符号与准正交码被划分为具有长度对应于划分的持续时间，以便在第二准正交的持续时间内将与数字相同的符号扩展到第一准正交码持续时间的所述倍数; 以及用于使用PN码扩展信道扩展信号的PN扩展器。

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