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51. 发明授权

US06389034B1 System for providing stream based and packet based services 有权
标题翻译：用于提供基于流和分组的服务的系统
公开(公告)号：US06389034B1
公开(公告)日：2002-05-14
申请号：US09148154
申请日：1998-09-04
申请人： Ning Guo , Leo Strawczynski
发明人： Ning Guo , Leo Strawczynski
IPC分类号： H04B7216
CPC分类号： H04W74/02 , H04B7/264
摘要： This invention proposes a novel common packet data channel (CPDC) system structure and method to efficiently provide variable-rate packet data services in CDMA system. This system uses common code channels to serve packet data calls for a plurality of packet data users within a cell or sector. On the forward link (base station-to-mobile), an ATM-type multiplexing scheme is employed on a common code channel, while a spread ALOHA-type random access scheme is used on the reverse link (mobile-to-base station). The overhead due to call setup and channel assignment in a conventional circuit-switched system is not required in this system. The delay due to the call setup is reduced. In addition, ATM cells can be directly transmitted over the air interface. Novel transceiver architectures for the terminal and base station for implementing a system as well as particular channel signal structures are disclosed.
摘要翻译：本发明提出了一种在CDMA系统中有效提供可变速率分组数据业务的新颖的通用分组数据信道（CPDC）系统结构和方法。该系统使用通用代码信道为单元或扇区内的多个分组数据用户提供分组数据呼叫。在前向链路（基站到移动台）上，在公共码信道上采用ATM型复用方式，而在反向链路（移动台到基站）上使用扩频的ALOHA型随机接入方式，。在该系统中不需要在常规电路交换系统中由于呼叫建立和信道分配而引起的开销。由于呼叫建立而导致的延迟降低。此外，ATM信元可以直接通过空中接口传输。公开了用于终端和基站用于实现系统以及特定信道信号结构的新型收发机架构。

52. 发明授权

US6138022A Cellular communication network with vocoder sharing feature 失效
标题翻译：蜂窝通信网络与声码器共享功能
公开(公告)号：US6138022A
公开(公告)日：2000-10-24
申请号：US898867
申请日：1997-07-23
申请人： Leo Strawczynski , Bill W. A. Gage , Rafi Rabipour
发明人： Leo Strawczynski , Bill W. A. Gage , Rafi Rabipour
IPC分类号： H04W88/18 , H04Q7/20 , G01R31/08 , H04B1/38 , H04M1/00
CPC分类号： H04W88/181
摘要： The present invention provides a novel system and a method for improving the voice quality of wireless-to-wireless calls or wireless-to-fixed terminal calls, while permitting a more efficient utilization of network resources. In a first aspect, the invention provides a communication system including a plurality of base stations connected to one another through a digital network (such as TDM, frame relay or ATM). Also, a plurality of vocoder channels, separate from the individual base stations, provide a data flow path from the base stations to wireline terminals first through the digital network via a Mobile Switching Center and finally through a landline network. In a wireless-to-wireless call, the compressed audio signal travels from one base station to another without undergoing any de-compression/compression. This avoids undesirable vocoder tandeming known to degrade voice quality. If the call is identified as being of a wireless-to-wireline terminal nature, the data is directed to a vocoder channel for decompression into PCM samples. The samples are then transmitted to the fixed terminal through the landline network. The main advantage of this network architecture is that fewer vocoders are required by comparison to prior art systems, therefore fewer costs are incurred. In addition, voice quality is improved.
摘要翻译：本发明提供了一种用于提高无线到无线呼叫或无线到固定终端呼叫的语音质量的新型系统和方法，同时允许更有效地利用网络资源。在第一方面，本发明提供一种包括通过数字网络（例如TDM，帧中继或ATM）彼此连接的多个基站的通信系统。此外，与各个基站分离的多个声码器信道提供从基站到有线终端的数据流路径，首先通过数字网络经由移动交换中心，最后通过陆线网络。在无线到无线呼叫中，压缩音频信号从一个基站传播到另一个基站，而不经历任何去压缩/压缩。这避免了已知降低语音质量的不良声码器串联。如果呼叫被识别为无线到有线终端的性质，则数据被引导到用于解压缩成PCM样本的声码器信道。样本然后通过陆线网络传输到固定终端。该网络架构的主要优点是与现有技术系统相比需要较少的声码器，因此产生较少的成本。此外，语音质量得到提高。

53. 发明授权

US6070083A Mobile communication device and communication network for providing location services 失效
标题翻译：移动通信设备和通信网络，用于提供定位服务
公开(公告)号：US6070083A
公开(公告)日：2000-05-30
申请号：US78499
申请日：1998-05-14
申请人： J. Michael Watters , Leo Strawczynski , David Steer
发明人： J. Michael Watters , Leo Strawczynski , David Steer
IPC分类号： G01S5/00 , G01S5/10 , H04W4/02 , H04W24/00 , H04W28/24 , H04W48/08 , H04W64/00 , H04Q7/20
CPC分类号： H04W4/02 , G01S5/0027 , G01S5/10 , H04W64/00 , G01S2205/008 , H04W24/00 , H04W28/24 , H04W48/08
摘要： A mobile communication system and communication device for providing location services. Time difference of arrival (TDOA) measurements are used to determine the location of a mobile of the network. The location may be forwarded to a service provider. The location may alternatively be used to determine service providers that are local to the mobile. Correction factors deprived from calibration TDOA measurements made at calibration terminals are applied to the TDOA measurements enhance the accuracy of the location determination.
摘要翻译：一种用于提供定位服务的移动通信系统和通信设备。使用时差（TDOA）测量来确定网络的移动设备的位置。该位置可以被转发到服务提供商。该位置可以替代地用于确定移动设备本地的服务提供商。校准因子被剥夺的校正因子在校准终端上进行TDOA测量被应用于TDOA测量，提高了位置确定的准确性。

54. 发明授权

US6038452A Telecommunication network utilizing a quality of service protocol 失效
标题翻译：电信网络利用服务质量协议
公开(公告)号：US6038452A
公开(公告)日：2000-03-14
申请号：US921278
申请日：1997-08-29
申请人： Leo Strawczynski , Bill W. A. Gage , Rafi Rabipour
发明人： Leo Strawczynski , Bill W. A. Gage , Rafi Rabipour
IPC分类号： H04B7/005 , H04Q7/20
CPC分类号： H04W52/24
摘要： The present invention provides novel systems and methods for improving the voice quality of wireless-to-wireless calls or wireless-to-fixed terminal calls. This disclosure describes methods and apparatuses to determine and control the quality of service objectives in a telecommunication network involving at least one wireless terminal.
摘要翻译：本发明提供了用于改善无线到无线呼叫或无线到固定终端呼叫的语音质量的新型系统和方法。本公开描述了确定和控制涉及至少一个无线终端的电信网络中的服务质量目标的方法和装置。

55. 发明授权

US5345597A Call set-up in a radio communication system with dynamic channel allocation 失效
标题翻译：在具有动态信道分配的无线电通信系统中的呼叫建立
公开(公告)号：US5345597A
公开(公告)日：1994-09-06
申请号：US40395
申请日：1993-03-30
申请人： Leo Strawczynski , Howard M. Sandler , Gregory L. Plett , David G. Steer
发明人： Leo Strawczynski , Howard M. Sandler , Gregory L. Plett , David G. Steer
IPC分类号： H04W24/00 , H04W36/06 , H04W52/00 , H04W72/08 , H04W76/02 , H04Q7/00 , H04B7/26
CPC分类号： H04W72/082 , H04W36/06 , H04W24/00 , H04W24/10 , H04W52/0206 , H04W72/02 , H04W72/0406 , H04W76/02
摘要： The call set-up technique of this invention is characterized by the use of channel information from both base station and subscriber terminal in determining the radio traffic channel upon which to set-up a new call. Communication between the base station and subscriber terminal is carried out on a signalling channel until the traffic channel is chosen. Calls are set-up so that they proceed on the radio channel which, of a set of channels under consideration by the subscriber terminal, contains the least amount of interference as measured at the subscriber terminal. The set of channels under consideration by the subscriber terminal is a subset of the entire set of channels allocated to the service. This subset is comprised of those channels having little interference, as measured by the base station. The call set-up technique thereby assures that calls proceed on channels containing little interference from the viewpoints of both base station and subscriber terminal.
摘要翻译：本发明的呼叫建立技术的特征在于，在确定建立新呼叫的无线电业务信道时，使用来自基站和用户终端的信道信息。在信令信道上执行基站与用户终端之间的通信，直到选择了业务信道。呼叫被建立，使得它们在用户终端考虑的一组信道中包含在用户终端测量的最小干扰量的无线电信道上进行。用户终端所考虑的一组信道是分配给该业务的整个信道组的子集。该子集包括由基站测量的具有很小干扰的那些信道。因此，呼叫建立技术确保来自基站和用户终端的观点的少量干扰的信道的呼叫进行。

56. 发明授权

US5229995A Radio link architecture for wireless communication systems 失效
标题翻译：用于无线通信系统的无线电链路架构
公开(公告)号：US5229995A
公开(公告)日：1993-07-20
申请号：US748740
申请日：1991-08-22
申请人： Leo Strawczynski , Howard M. Sandler , Gregory L. Plett , David G. Steer
发明人： Leo Strawczynski , Howard M. Sandler , Gregory L. Plett , David G. Steer
IPC分类号： H04W36/16
CPC分类号： H04W36/16
摘要： An improved radio link architecture for digital wireless communication systems which is characterized by the use of information and signalling channels on a number of RF carriers, thereby providing common signalling channels for call set-up and control functions. A first group of RF carriers are allocated as traffic channels between base stations and subscriber terminals. Each RF carrier in the first group comprises at least one traffic channel. A second group of RF carriers is allocated for providing common signalling channels between the base stations and the subscriber terminals. Each RF carrier having common signalling channels operates in time division multiple access mode, and each common signalling channel being time division duplexed.
摘要翻译：一种用于数字无线通信系统的改进的无线电链路架构，其特征在于在多个RF载波上使用信息和信令信道，由此提供用于呼叫建立和控制功能的公共信令信道。第一组RF载波被分配为基站和用户终端之间的业务信道。第一组中的每个RF载波包括至少一个业务信道。第二组RF载波被分配用于在基站和用户终端之间提供公共信令信道。具有公共信令信道的每个RF载波以时分多址方式工作，并且每个公共信令信道被时分双工。

57. 发明授权

US4592070A ADPCM encoder/decoder with improved tracking 失效
标题翻译： ADPCM编码器/解码器具有改进的跟踪功能
公开(公告)号：US4592070A
公开(公告)日：1986-05-27
申请号：US555357
申请日：1983-11-28
申请人： Peter E. Chow , Andreas H. Weirich , Leo Strawczynski
发明人： Peter E. Chow , Andreas H. Weirich , Leo Strawczynski
IPC分类号： H03M3/04 , H04B14/06
CPC分类号： H03M3/042
摘要： An ADPCM encoder and decoder includes an adaptive quantizer and an adaptive predictor. A quantizing-step-size adaptation circuit determines a quantizing-step-size for the adaptive quantizer in dependence upon the ADPCM signal. When the quantizing-step-size is small, updating of predictor coefficients, produced in the adaptive predictor, in dependence upon a reconstructed signal and a reconstructed error signal derived from the ADPCM signal, is inhibited, the predictor coefficients being updated only in dependence upon a leakage function. This enables improved tracking to be achieved by the ADPCM arrangement.
摘要翻译： ADPCM编码器和解码器包括自适应量化器和自适应预测器。量化步长适应电路根据ADPCM信号确定自适应量化器的量化步长。当量化步长小时，根据重构信号和从ADPCM信号导出的重建误差信号，在自适应预测器中产生的预测因子系数的更新被禁止，预测器系数仅根据泄漏功能。这使得能够通过ADPCM布置来实现改进的跟踪。

58. 发明授权

US4549304A ADPCM Encoder/decoder with signalling bit insertion 失效
标题翻译：具有信号位插入的ADPCM编码器/解码器
公开(公告)号：US4549304A
公开(公告)日：1985-10-22
申请号：US555359
申请日：1983-11-28
申请人： Andreas H. Weirich , Leo Strawczynski
发明人： Andreas H. Weirich , Leo Strawczynski
IPC分类号： H04B14/06 , H04J3/02
CPC分类号： H04B14/068
摘要： In an ADPCM transmission system, signalling frames of an incoming multiplexed PCM signal are identified and signalling bits extracted therefrom. During each signalling frame, an ADPCM encoder/decoder is controlled by the signalling frame signal to operate entirely for 3-bit ADPCM, instead of the regular 4-bit ADPCM, to which 3-bit ADPCM the extracted signalling bits are added for transmission. The deliberate alteration from 4-bit to 3-bit ADPCM at the encoder and decoder of the system in each signalling frame ensures proper adaptation and consequently no loss of tracking between the encoder and the decoder.
摘要翻译：在ADPCM传输系统中，识别输入复用PCM信号的信令帧，并从中提取信令比特。在每个信令帧期间，ADPCM编码器/解码器由信令帧信号控制，完全用于3位ADPCM，而不是常规的4位ADPCM，其中3位ADPCM被提取的信令位被添加到传输中。在每个信令帧中系统的编码器和解码器上从4位到3位ADPCM的故意改变确保了适配器的适配，从而在编码器与解码器之间不会发生跟踪损失。

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