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1.发明授权Qualifying available reverse link coding rates from access channel power setting 有权从接入信道功率设置合格的可用的反向链路编码率公开(公告)号：US08811367B2
公开(公告)日：2014-08-19
申请号：US11295270
申请日：2005-12-06
IPC分类号： H04B7/216
CPC分类号： H04W72/042 , H04J13/00 , H04J13/0003 , H04L5/22 , H04W24/00 , H04W28/22 , H04W48/08 , H04W52/24 , H04W52/26 , H04W52/365 , H04W72/0406 , H04W72/0446 , H04W72/0466 , H04W72/0473 , H04W72/048 , H04W72/1289 , Y02D70/00
摘要： Data rate allocation decisions are made for a communications channel. A message is sent on a communication channel such as on a paging channel. The message indicates a forward Effective Radiate Power (ERP) of a pilot signal transmitted. The remote station then determines the received signal strength of this pilot signal, taking into account receiver gains. The path loss may be estimated as the difference between the forward ERP data value received and the detected received pilot power. This transmit power level information is encoded as a digital data word together with the forward path loss information. Upon transmission, the forward path loss estimate as calculated and the output power value can then help determine the amount of excess power available. This is indicative of the amount of dynamic range available in the transmit power amplifier. Coding rates which require a higher dynamic range may be acceptable for use.
摘要翻译： 对通信信道进行数据速率分配决定。 在诸如寻呼信道的通信信道上发送消息。 该消息表示发送的导频信号的前向有效辐射功率（ERP）。 然后，远程站在考虑到接收机增益的情况下确定该导频信号的接收信号强度。 可以将路径损耗估计为所接收的前向ERP数据值与检测到的接收导频功率之间的差。 该发送功率电平信息与前向路径损耗信息一起被编码为数字数据字。 在传输时，计算出的前向路径损耗估计值和输出功率值可以帮助确定可用的多余功率量。 这表示发射功率放大器中可用的动态范围的量。 需要更高动态范围的编码速率可能是可以接受的。
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2.发明授权Maintaining a maintenance channel in a reverse link of a wireless communications system 有权在无线通信系统的反向链路中维护维护信道公开(公告)号：US08582552B2
公开(公告)日：2013-11-12
申请号：US13367093
申请日：2012-02-06
CPC分类号： H04W52/18 , H04L5/0091 , H04W52/0216 , H04W52/12 , H04W52/287 , H04W52/325 , H04W72/12 , H04W74/04 , H04W74/0866 , H04W76/25 , Y02D70/1222
摘要： In a reverse link of a wireless CDMA communication system, a method of maintaining an idling mode connection between a field unit and a base transceiver station is provided using various techniques to maintain the idle mode connection at a reduced power level. A preferred embodiment computes a time slot or frame offset based on modulo function using a field unit identifier in order to distribute field unit maintenance transmissions among available slots or offsets. An alternate embodiment detects explicit signaling states changes at the physical layer and causes power target changes. A further embodiment transmits maintenance data during predetermined time intervals, coordinated between the field units and BTS, allowing power levels to be adjusted accordingly.
摘要翻译： 在无线CDMA通信系统的反向链路中，使用各种技术来提供在场单元和基站之间维持空闲模式连接的方法，以将空闲模式连接维持在降低的功率电平。 优选实施例使用字段单元标识符基于模函数计算时隙或帧偏移，以便在可用时隙或偏移之间分配现场单元维护传输。 替代实施例检测物理层处的显式信令状态改变并且引起功率目标改变。 另一实施例在预定的时间间隔内发送维护数据，在现场单元和BTS之间协调，从而允许相应地调整功率电平。
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3.发明申请METHOD FOR SEARCHING PILOT SIGNALS TO SYNCHRONIZE A CDMA RECEIVER WITH AN ASSOCIATED TRANSMITTER 审中-公开搜索引航信号以同步相关发射机的CDMA接收机的方法公开(公告)号：US20130121251A1
公开(公告)日：2013-05-16
申请号：US13680845
申请日：2012-11-19
IPC分类号： H04W56/00
CPC分类号： H04W56/001 , H04B1/7075 , H04B1/70775 , H04B1/7103 , H04B7/086 , H04B2201/70701 , H04L27/2273 , H04L2027/0057 , H04L2027/0087
摘要： A wireless transmit-receive unit includes an antenna, detection circuitry configured to detect a pseudorandom (PN) offset of a pilot signal received by the antenna while the antenna is adapted to an omnidirectional receive pattern, and monitoring circuitry configured to monitor a received signal strength of the pilot signal as a directional receive pattern of the antenna is steered in order to determine an azimuth angle of the directional pattern that maximizes the pilot signal at the detected PN offset.
摘要翻译： 无线发射 - 接收单元包括天线，检测电路，被配置为检测由天线接收的导频信号的伪随机（PN）偏移，同时天线适于全向接收模式;以及监视电路，被配置为监视接收信号强度 作为天线的定向接收模式的导频信号被控制，以便确定在检测到的PN偏移处使导频信号最大化的方向图的方位角。
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4.发明申请MAINTAINING A MAINTENANCE CHANNEL IN A REVERSE LINK OF A WIRELESS COMMUNICATIONS SYSTEM 有权维护无线通信系统反向链路中的维护通道公开(公告)号：US20120134341A1
公开(公告)日：2012-05-31
申请号：US13367093
申请日：2012-02-06
CPC分类号： H04W52/18 , H04L5/0091 , H04W52/0216 , H04W52/12 , H04W52/287 , H04W52/325 , H04W72/12 , H04W74/04 , H04W74/0866 , H04W76/25 , Y02D70/1222
摘要： In a reverse link of a wireless CDMA communication system, a method of maintaining an idling mode connection between a field unit and a base transceiver station is provided using various techniques to maintain the idle mode connection at a reduced power level. A preferred embodiment computes a time slot or frame offset based on modulo function using a field unit identifier in order to distribute field unit maintenance transmissions among available slots or offsets. An alternate embodiment detects explicit signaling states changes at the physical layer and causes power target changes. A further embodiment transmits maintenance data during predetermined time intervals, coordinated between the field units and BTS, allowing power levels to be adjusted accordingly.
摘要翻译： 在无线CDMA通信系统的反向链路中，使用各种技术来提供在场单元和基站之间维持空闲模式连接的方法，以将空闲模式连接维持在降低的功率电平。 优选实施例使用字段单元标识符基于模函数计算时隙或帧偏移，以便在可用时隙或偏移之间分配现场单元维护传输。 替代实施例检测物理层处的显式信令状态改变并且引起功率目标改变。 另一实施例在预定的时间间隔内发送维护数据，在现场单元和BTS之间协调，从而允许相应地调整功率电平。
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5.发明申请Method for Mitigating Adverse Processor Loading in a Personal Computer Implementation of a Wireless Local Area Network Adapter 审中-公开一种减轻无线局域网适配器个人计算机不利处理器加载的方法公开(公告)号：US20100208612A1
公开(公告)日：2010-08-19
申请号：US12772268
申请日：2010-05-03
IPC分类号： H04L12/26
CPC分类号： H04L43/16 , H04L43/0894
摘要： A personal computer's (PC) microprocessor is used to provide both the physical layer (PHY) and media access control (MAC) processing functions required to implement a wireless local area network (WLAN) adapter. This technique uses the polling mechanism associated with the power save (PS) functionality of WLAN protocol to relieve networking stress on the host processing system. It does this while maintaining networking integrity and packet delivery. The WLAN protocol polling mechanism is used to briefly inhibit the transfer of packets from the WLAN access point (AP) during peak periods of network traffic and/or host processor loading. Because the modulation, demodulation, and MAC functions, typically implemented in dedicated hardware on existing adapters are implemented in software running on the host PC microprocessor, other host system processes and applications can interfere with these time critical functions. Conversely, latency introduced by WLAN specific processing tasks during peak periods of network traffic may cause unacceptable delays to the other processes and applications requiring microprocessor attention. In addition to its primary stated purpose of allowing WLAN mobile stations to save power, this technique will use power save polling as a method for controlling delivery of network packets when the host is heavily loaded or when peak interrupt latencies make reliable packet delivery difficult or impossible.
摘要翻译： 个人计算机（PC）微处理器用于提供实现无线局域网（WLAN）适配器所需的物理层（PHY）和媒体访问控制（MAC）处理功能。 该技术使用与WLAN协议的功率节省（PS）功能相关联的轮询机制来减轻主机处理系统上的网络压力。 它同时保持网络完整性和数据包传输。 WLAN协议轮询机制用于在网络流量和/或主处理器加载的高峰期期间短暂禁止从WLAN接入点（AP）传送数据包。 由于通常在现有适配器上的专用硬件中实现的调制，解调和MAC功能在主机PC微处理器上运行的软件中实现，所以其他主机系统进程和应用程序可能会干扰这些时间关键功能。 相反，由网络流量高峰期的WLAN特定处理任务引入的延迟可能会对需要微处理器注意的其他进程和应用程序造成不可接受的延迟。 除了主要规定的允许WLAN移动台节省电力的目的之外，该技术还将使用省电轮询作为在主机严重加载时控制网络分组传送的方法，或者当峰值中断延迟使得可靠的分组传送困难或不可能时 。
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公开(公告)号：US20090225718A1
公开(公告)日：2009-09-10
申请号：US12402813
申请日：2009-03-12
IPC分类号： H04W72/00
CPC分类号： H04W72/0446 , H04W68/00 , H04W72/0406 , H04W74/04 , H04W76/10
摘要： A control channel supporting traffic control in epochs is divided into two control subchannels each being less than or equal to about a half epoch in duration and occurring serially in time. Slot allocation data may be transmitted and received independently over the subchannels. One subchannel may be used for transmitting forward slot allocation data and the other subchannel may be used for transmitting reverse slot allocation data. The channel split into two subchannels may be a paging channel. The forward and reverse slot allocation data may be transmitted between a base station processor and field unit. Forward and reverse traffic data may be staggered by at least about half an epoch. Transmission of traffic data happens within about two epochs after the assignments.
摘要翻译： 支持时代中的交通控制的控制信道被分成两个控制子信道，每个控制子信道的持续时间小于或等于约一半的时期，并且以时间顺序发生。 时隙分配数据可以通过子信道独立发送和接收。 一个子信道可以用于发送前向时隙分配数据，而另一个子信道可以用于发送反向时隙分配数据。 分成两个子信道的信道可以是寻呼信道。 前向和反向时隙分配数据可以在基站处理器和现场单元之间传输。 正向和反向交通数据可以交错至少约一半的时期。 交通数据的传输发生在分配后大约两个时期。
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公开(公告)号：US20090116469A1
公开(公告)日：2009-05-07
申请号：US12290755
申请日：2008-11-03
IPC分类号： H04J13/00
CPC分类号： H04L5/005 , H04B1/707 , H04B7/2628 , H04B2201/70701 , H04L1/0041 , H04L1/0063 , H04L1/0065 , H04L1/0066 , H04L1/0071 , H04L5/0048 , H04L27/183 , H04L27/2657 , H04L27/2662
摘要： A technique for encoding digital communication signals. Data symbols are augmented in pilot symbols inserted at predetermined positions. The pilot augmented sequence is then fed to a deterministic error correction block encoder, such as a turbo product coder, to output a coded sequence. The symbols in the error correction encoded sequence are then rearranged to ensure that the output symbols derived from input pilot symbols are located at regular, predetermined positions. As a result, channel encoding schemes can more easily be used which benefits from power of two length block sizes.
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公开(公告)号：US07145964B2
公开(公告)日：2006-12-05
申请号：US11264847
申请日：2005-11-02
申请人： John E. Hoffmann , George Rodney Nelson, Jr. , Daniel I. Riley , Antoine J. Rouphael , James A. Proctor, Jr.
发明人： John E. Hoffmann , George Rodney Nelson, Jr. , Daniel I. Riley , Antoine J. Rouphael , James A. Proctor, Jr.
IPC分类号： H04L27/36
CPC分类号： H04L1/0048 , G11B20/1833 , H03M13/35 , H04B1/707 , H04J13/00 , H04L1/0003 , H04L1/0007 , H04L1/0009 , H04L1/0025 , H04L1/1809 , H04L1/1816 , H04L25/14 , H04L27/22 , H04L27/38 , H04L2001/0093 , H04L2001/0096
摘要： The present invention provides for making code rate adjustments and modulation type adjustments in a pseudonoise (PN) encoded CDMA system. Coding rate adjustments may be made by changing the number of information bits per symbol, or Forward Error Code (FEC) coding rate. A forward error correction (FEC) block size is maintained at a constant amount. Therefore, as the number of information bits per symbol are increased, an integer multiple of bits per epoch is always maintained. The scheme permits for a greater flexibility and selection of effective data rates providing information bit rates ranging from, for example, approximately 50 kilobits per second to over 5 mega bits per second (Mbps) in one preferred embodiment.
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公开(公告)号：US08462689B2
公开(公告)日：2013-06-11
申请号：US11022353
申请日：2004-12-22
CPC分类号： H04L1/0045 , H04L1/004 , H04L1/0041 , H04L2001/0093 , H04W28/06 , H04W72/0413 , H04W72/0446 , H04W74/004 , H04W74/006
摘要： A technique for a time division multiplex system in which access to shared broadcast communication media is granted on a demand basis. Particular connections are assigned slot times at the transmitter based on demand. However, no specific information regarding the assignment of time slots need be communicated to the receivers. The transmit side employs a forward error correction technique followed by multiplication by a cover sequence unique to each connection. All receivers listen to the broadcast transmission channel all of the time. The receiver assigned to each connection decodes the signals in such a manner that only the receiver with the correct cover sequence assigned to a particular connection will successfully decode the data associated with that connection. Data frames that fail the forward error correction process are discarded, and only those frames which are successfully decoded are passed up to a higher layer. The occurrence of an erroneously received frame is not necessarily always reported to the transmit side of the connection; only a packet level error indication is made. In this way, information containing time slot assignment need not be communicated between the transmitter and receiver, and yet data will be correctly received.
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公开(公告)号：US08320298B2
公开(公告)日：2012-11-27
申请号：US10350309
申请日：2003-01-22
IPC分类号： H04B7/212
CPC分类号： H04W72/0446 , H04W28/06 , H04W28/20 , H04W28/24 , H04W48/12 , H04W72/042
摘要： Parallel demodulators are provided in field units. Forward and reverse channel allocation information may be broadcast to the field units in the same epoch as traffic data but on first and second channels, such as paging and traffic channels. This assures that all field units are able to receive forward and reverse channel allocation information every epoch. By having parallel demodulators in the field unit, switching between the first and second channels is avoided and channel allocation information is not lost.
摘要翻译： 并行解调器以现场单位提供。 正向和反向信道分配信息可以在与业务数据相同的时间段中广播到场单元，而是在诸如寻呼和业务信道的第一和第二信道上广播。 这确保所有现场单元能够每个时期接收正向和反向信道分配信息。 通过在场单元中具有并行解调器，避免了第一和第二信道之间的切换，并且信道分配信息不会丢失。
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